src/client/content_cao.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "content_cao.h"
  21 #include <IBillboardSceneNode.h>
  22 #include <ICameraSceneNode.h>
  23 #include <IMeshManipulator.h>
  24 #include <IAnimatedMeshSceneNode.h>
  25 #include "client/client.h"
  26 #include "client/renderingengine.h"
  27 #include "client/sound.h"
  28 #include "client/tile.h"
  29 #include "util/basic_macros.h"
  30 #include "util/numeric.h"
  31 #include "util/serialize.h"
  32 #include "camera.h" // CameraModes
  33 #include "collision.h"
  34 #include "content_cso.h"
  35 #include "environment.h"
  36 #include "itemdef.h"
  37 #include "localplayer.h"
  38 #include "map.h"
  39 #include "mesh.h"
  40 #include "nodedef.h"
  41 #include "serialization.h" // For decompressZlib
  42 #include "settings.h"
  43 #include "sound.h"
  44 #include "tool.h"
  45 #include "wieldmesh.h"
  46 #include <algorithm>
  47 #include <cmath>
  48 #include "client/shader.h"
  49 #include "client/minimap.h"
  50
  51 class Settings;
  52 struct ToolCapabilities;
  53
  54 std::unordered_map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
  55
  56 template<typename T>
  57 void SmoothTranslator<T>::init(T current)
  58 {
  59         val_old = current;
  60         val_current = current;
  61         val_target = current;
  62         anim_time = 0;
  63         anim_time_counter = 0;
  64         aim_is_end = true;
  65 }
  66
  67 template<typename T>
  68 void SmoothTranslator<T>::update(T new_target, bool is_end_position, float update_interval)
  69 {
  70         aim_is_end = is_end_position;
  71         val_old = val_current;
  72         val_target = new_target;
  73         if (update_interval > 0) {
  74                 anim_time = update_interval;
  75         } else {
  76                 if (anim_time < 0.001 || anim_time > 1.0)
  77                         anim_time = anim_time_counter;
  78                 else
  79                         anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
  80         }
  81         anim_time_counter = 0;
  82 }
  83
  84 template<typename T>
  85 void SmoothTranslator<T>::translate(f32 dtime)
  86 {
  87         anim_time_counter = anim_time_counter + dtime;
  88         T val_diff = val_target - val_old;
  89         f32 moveratio = 1.0;
  90         if (anim_time > 0.001)
  91                 moveratio = anim_time_counter / anim_time;
  92         f32 move_end = aim_is_end ? 1.0 : 1.5;
  93
  94         // Move a bit less than should, to avoid oscillation
  95         moveratio = std::min(moveratio * 0.8f, move_end);
  96         val_current = val_old + val_diff * moveratio;
  97 }
  98
  99 void SmoothTranslatorWrapped::translate(f32 dtime)
 100 {
 101         anim_time_counter = anim_time_counter + dtime;
 102         f32 val_diff = std::abs(val_target - val_old);
 103         if (val_diff > 180.f)
 104                 val_diff = 360.f - val_diff;
 105
 106         f32 moveratio = 1.0;
 107         if (anim_time > 0.001)
 108                 moveratio = anim_time_counter / anim_time;
 109         f32 move_end = aim_is_end ? 1.0 : 1.5;
 110
 111         // Move a bit less than should, to avoid oscillation
 112         moveratio = std::min(moveratio * 0.8f, move_end);
 113         wrappedApproachShortest(val_current, val_target,
 114                 val_diff * moveratio, 360.f);
 115 }
 116
 117 void SmoothTranslatorWrappedv3f::translate(f32 dtime)
 118 {
 119         anim_time_counter = anim_time_counter + dtime;
 120
 121         v3f val_diff_v3f;
 122         val_diff_v3f.X = std::abs(val_target.X - val_old.X);
 123         val_diff_v3f.Y = std::abs(val_target.Y - val_old.Y);
 124         val_diff_v3f.Z = std::abs(val_target.Z - val_old.Z);
 125
 126         if (val_diff_v3f.X > 180.f)
 127                 val_diff_v3f.X = 360.f - val_diff_v3f.X;
 128
 129         if (val_diff_v3f.Y > 180.f)
 130                 val_diff_v3f.Y = 360.f - val_diff_v3f.Y;
 131
 132         if (val_diff_v3f.Z > 180.f)
 133                 val_diff_v3f.Z = 360.f - val_diff_v3f.Z;
 134
 135         f32 moveratio = 1.0;
 136         if (anim_time > 0.001)
 137                 moveratio = anim_time_counter / anim_time;
 138         f32 move_end = aim_is_end ? 1.0 : 1.5;
 139
 140         // Move a bit less than should, to avoid oscillation
 141         moveratio = std::min(moveratio * 0.8f, move_end);
 142         wrappedApproachShortest(val_current.X, val_target.X,
 143                 val_diff_v3f.X * moveratio, 360.f);
 144
 145         wrappedApproachShortest(val_current.Y, val_target.Y,
 146                 val_diff_v3f.Y * moveratio, 360.f);
 147
 148         wrappedApproachShortest(val_current.Z, val_target.Z,
 149                 val_diff_v3f.Z * moveratio, 360.f);
 150 }
 151
 152 /*
 153         Other stuff
 154 */
 155
 156 static void setBillboardTextureMatrix(scene::IBillboardSceneNode *bill,
 157                 float txs, float tys, int col, int row)
 158 {
 159         video::SMaterial& material = bill->getMaterial(0);
 160         core::matrix4& matrix = material.getTextureMatrix(0);
 161         matrix.setTextureTranslate(txs*col, tys*row);
 162         matrix.setTextureScale(txs, tys);
 163 }
 164
 165 // Evaluate transform chain recursively; irrlicht does not do this for us
 166 static void updatePositionRecursive(scene::ISceneNode *node)
 167 {
 168         scene::ISceneNode *parent = node->getParent();
 169         if (parent)
 170                 updatePositionRecursive(parent);
 171         node->updateAbsolutePosition();
 172 }
 173
 174 static bool logOnce(const std::ostringstream &from, std::ostream &log_to)
 175 {
 176         thread_local std::vector<u64> logged;
 177
 178         std::string message = from.str();
 179         u64 hash = murmur_hash_64_ua(message.data(), message.length(), 0xBADBABE);
 180
 181         if (std::find(logged.begin(), logged.end(), hash) != logged.end())
 182                 return false;
 183         logged.push_back(hash);
 184         log_to << message << std::endl;
 185         return true;
 186 }
 187
 188 /*
 189         TestCAO
 190 */
 191
 192 class TestCAO : public ClientActiveObject
 193 {
 194 public:
 195         TestCAO(Client *client, ClientEnvironment *env);
 196         virtual ~TestCAO() = default;
 197
 198         ActiveObjectType getType() const
 199         {
 200                 return ACTIVEOBJECT_TYPE_TEST;
 201         }
 202
 203         static ClientActiveObject* create(Client *client, ClientEnvironment *env);
 204
 205         void addToScene(ITextureSource *tsrc, scene::ISceneManager *smgr);
 206         void removeFromScene(bool permanent);
 207         void updateLight(u32 day_night_ratio);
 208         void updateNodePos();
 209
 210         void step(float dtime, ClientEnvironment *env);
 211
 212         void processMessage(const std::string &data);
 213
 214         bool getCollisionBox(aabb3f *toset) const { return false; }
 215 private:
 216         scene::IMeshSceneNode *m_node;
 217         v3f m_position;
 218 };
 219
 220 // Prototype
 221 TestCAO proto_TestCAO(NULL, NULL);
 222
 223 TestCAO::TestCAO(Client *client, ClientEnvironment *env):
 224         ClientActiveObject(0, client, env),
 225         m_node(NULL),
 226         m_position(v3f(0,10*BS,0))
 227 {
 228         ClientActiveObject::registerType(getType(), create);
 229 }
 230
 231 ClientActiveObject* TestCAO::create(Client *client, ClientEnvironment *env)
 232 {
 233         return new TestCAO(client, env);
 234 }
 235
 236 void TestCAO::addToScene(ITextureSource *tsrc, scene::ISceneManager *smgr)
 237 {
 238         if(m_node != NULL)
 239                 return;
 240
 241         //video::IVideoDriver* driver = smgr->getVideoDriver();
 242
 243         scene::SMesh *mesh = new scene::SMesh();
 244         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 245         video::SColor c(255,255,255,255);
 246         video::S3DVertex vertices[4] =
 247         {
 248                 video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 249                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 250                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 251                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
 252         };
 253         u16 indices[] = {0,1,2,2,3,0};
 254         buf->append(vertices, 4, indices, 6);
 255         // Set material
 256         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 257         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 258         buf->getMaterial().setTexture(0, tsrc->getTextureForMesh("rat.png"));
 259         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 260         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 261         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 262         // Add to mesh
 263         mesh->addMeshBuffer(buf);
 264         buf->drop();
 265         m_node = smgr->addMeshSceneNode(mesh, NULL);
 266         mesh->drop();
 267         updateNodePos();
 268 }
 269
 270 void TestCAO::removeFromScene(bool permanent)
 271 {
 272         if (!m_node)
 273                 return;
 274
 275         m_node->remove();
 276         m_node = NULL;
 277 }
 278
 279 void TestCAO::updateLight(u32 day_night_ratio)
 280 {
 281 }
 282
 283 void TestCAO::updateNodePos()
 284 {
 285         if (!m_node)
 286                 return;
 287
 288         m_node->setPosition(m_position);
 289         //m_node->setRotation(v3f(0, 45, 0));
 290 }
 291
 292 void TestCAO::step(float dtime, ClientEnvironment *env)
 293 {
 294         if(m_node)
 295         {
 296                 v3f rot = m_node->getRotation();
 297                 //infostream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
 298                 rot.Y += dtime * 180;
 299                 m_node->setRotation(rot);
 300         }
 301 }
 302
 303 void TestCAO::processMessage(const std::string &data)
 304 {
 305         infostream<<"TestCAO: Got data: "<<data<<std::endl;
 306         std::istringstream is(data, std::ios::binary);
 307         u16 cmd;
 308         is>>cmd;
 309         if(cmd == 0)
 310         {
 311                 v3f newpos;
 312                 is>>newpos.X;
 313                 is>>newpos.Y;
 314                 is>>newpos.Z;
 315                 m_position = newpos;
 316                 updateNodePos();
 317         }
 318 }
 319
 320 /*
 321         GenericCAO
 322 */
 323
 324 #include "clientobject.h"
 325
 326 GenericCAO::GenericCAO(Client *client, ClientEnvironment *env):
 327                 ClientActiveObject(0, client, env)
 328 {
 329         if (client == NULL) {
 330                 ClientActiveObject::registerType(getType(), create);
 331         } else {
 332                 m_client = client;
 333         }
 334 }
 335
 336 bool GenericCAO::getCollisionBox(aabb3f *toset) const
 337 {
 338         if (m_prop.physical)
 339         {
 340                 //update collision box
 341                 toset->MinEdge = m_prop.collisionbox.MinEdge * BS;
 342                 toset->MaxEdge = m_prop.collisionbox.MaxEdge * BS;
 343
 344                 toset->MinEdge += m_position;
 345                 toset->MaxEdge += m_position;
 346
 347                 return true;
 348         }
 349
 350         return false;
 351 }
 352
 353 bool GenericCAO::collideWithObjects() const
 354 {
 355         return m_prop.collideWithObjects;
 356 }
 357
 358 void GenericCAO::initialize(const std::string &data)
 359 {
 360         infostream<<"GenericCAO: Got init data"<<std::endl;
 361         processInitData(data);
 362
 363         m_enable_shaders = g_settings->getBool("enable_shaders");
 364 }
 365
 366 void GenericCAO::processInitData(const std::string &data)
 367 {
 368         std::istringstream is(data, std::ios::binary);
 369         const u8 version = readU8(is);
 370
 371         if (version < 1) {
 372                 errorstream << "GenericCAO: Unsupported init data version"
 373                                 << std::endl;
 374                 return;
 375         }
 376
 377         // PROTOCOL_VERSION >= 37
 378         m_name = deSerializeString16(is);
 379         m_is_player = readU8(is);
 380         m_id = readU16(is);
 381         m_position = readV3F32(is);
 382         m_rotation = readV3F32(is);
 383         m_hp = readU16(is);
 384
 385         if (m_is_player) {
 386                 // Check if it's the current player
 387                 LocalPlayer *player = m_env->getLocalPlayer();
 388                 if (player && strcmp(player->getName(), m_name.c_str()) == 0) {
 389                         m_is_local_player = true;
 390                         m_is_visible = false;
 391                         player->setCAO(this);
 392                 }
 393         }
 394
 395         const u8 num_messages = readU8(is);
 396
 397         for (int i = 0; i < num_messages; i++) {
 398                 std::string message = deSerializeString32(is);
 399                 processMessage(message);
 400         }
 401
 402         m_rotation = wrapDegrees_0_360_v3f(m_rotation);
 403         pos_translator.init(m_position);
 404         rot_translator.init(m_rotation);
 405         updateNodePos();
 406 }
 407
 408 GenericCAO::~GenericCAO()
 409 {
 410         removeFromScene(true);
 411 }
 412
 413 bool GenericCAO::getSelectionBox(aabb3f *toset) const
 414 {
 415         if (!m_prop.is_visible || !m_is_visible || m_is_local_player
 416                         || !m_prop.pointable) {
 417                 return false;
 418         }
 419         *toset = m_selection_box;
 420         return true;
 421 }
 422
 423 const v3f GenericCAO::getPosition() const
 424 {
 425         if (!getParent())
 426                 return pos_translator.val_current;
 427
 428         // Calculate real position in world based on MatrixNode
 429         if (m_matrixnode) {
 430                 v3s16 camera_offset = m_env->getCameraOffset();
 431                 return m_matrixnode->getAbsolutePosition() +
 432                                 intToFloat(camera_offset, BS);
 433         }
 434
 435         return m_position;
 436 }
 437
 438 bool GenericCAO::isImmortal() const
 439 {
 440         return itemgroup_get(getGroups(), "immortal");
 441 }
 442
 443 scene::ISceneNode *GenericCAO::getSceneNode() const
 444 {
 445         if (m_meshnode) {
 446                 return m_meshnode;
 447         }
 448
 449         if (m_animated_meshnode) {
 450                 return m_animated_meshnode;
 451         }
 452
 453         if (m_wield_meshnode) {
 454                 return m_wield_meshnode;
 455         }
 456
 457         if (m_spritenode) {
 458                 return m_spritenode;
 459         }
 460         return NULL;
 461 }
 462
 463 scene::IAnimatedMeshSceneNode *GenericCAO::getAnimatedMeshSceneNode() const
 464 {
 465         return m_animated_meshnode;
 466 }
 467
 468 void GenericCAO::setChildrenVisible(bool toset)
 469 {
 470         for (u16 cao_id : m_attachment_child_ids) {
 471                 GenericCAO *obj = m_env->getGenericCAO(cao_id);
 472                 if (obj) {
 473                         // Check if the entity is forced to appear in first person.
 474                         obj->setVisible(obj->m_force_visible ? true : toset);
 475                 }
 476         }
 477 }
 478
 479 void GenericCAO::setAttachment(int parent_id, const std::string &bone,
 480                 v3f position, v3f rotation, bool force_visible)
 481 {
 482         int old_parent = m_attachment_parent_id;
 483         m_attachment_parent_id = parent_id;
 484         m_attachment_bone = bone;
 485         m_attachment_position = position;
 486         m_attachment_rotation = rotation;
 487         m_force_visible = force_visible;
 488
 489         ClientActiveObject *parent = m_env->getActiveObject(parent_id);
 490
 491         if (parent_id != old_parent) {
 492                 if (auto *o = m_env->getActiveObject(old_parent))
 493                         o->removeAttachmentChild(m_id);
 494                 if (parent)
 495                         parent->addAttachmentChild(m_id);
 496         }
 497         updateAttachments();
 498
 499         // Forcibly show attachments if required by set_attach
 500         if (m_force_visible) {
 501                 m_is_visible = true;
 502         } else if (!m_is_local_player) {
 503                 // Objects attached to the local player should be hidden in first person
 504                 m_is_visible = !m_attached_to_local ||
 505                         m_client->getCamera()->getCameraMode() != CAMERA_MODE_FIRST;
 506                 m_force_visible = false;
 507         } else {
 508                 // Local players need to have this set,
 509                 // otherwise first person attachments fail.
 510                 m_is_visible = true;
 511         }
 512 }
 513
 514 void GenericCAO::getAttachment(int *parent_id, std::string *bone, v3f *position,
 515         v3f *rotation, bool *force_visible) const
 516 {
 517         *parent_id = m_attachment_parent_id;
 518         *bone = m_attachment_bone;
 519         *position = m_attachment_position;
 520         *rotation = m_attachment_rotation;
 521         *force_visible = m_force_visible;
 522 }
 523
 524 void GenericCAO::clearChildAttachments()
 525 {
 526         // Cannot use for-loop here: setAttachment() modifies 'm_attachment_child_ids'!
 527         while (!m_attachment_child_ids.empty()) {
 528                 int child_id = *m_attachment_child_ids.begin();
 529
 530                 if (ClientActiveObject *child = m_env->getActiveObject(child_id))
 531                         child->setAttachment(0, "", v3f(), v3f(), false);
 532
 533                 removeAttachmentChild(child_id);
 534         }
 535 }
 536
 537 void GenericCAO::clearParentAttachment()
 538 {
 539         if (m_attachment_parent_id)
 540                 setAttachment(0, "", m_attachment_position, m_attachment_rotation, false);
 541         else
 542                 setAttachment(0, "", v3f(), v3f(), false);
 543 }
 544
 545 void GenericCAO::addAttachmentChild(int child_id)
 546 {
 547         m_attachment_child_ids.insert(child_id);
 548 }
 549
 550 void GenericCAO::removeAttachmentChild(int child_id)
 551 {
 552         m_attachment_child_ids.erase(child_id);
 553 }
 554
 555 ClientActiveObject* GenericCAO::getParent() const
 556 {
 557         return m_attachment_parent_id ? m_env->getActiveObject(m_attachment_parent_id) :
 558                         nullptr;
 559 }
 560
 561 void GenericCAO::removeFromScene(bool permanent)
 562 {
 563         // Should be true when removing the object permanently
 564         // and false when refreshing (eg: updating visuals)
 565         if (m_env && permanent) {
 566                 // The client does not know whether this object does re-appear to
 567                 // a later time, thus do not clear child attachments.
 568
 569                 clearParentAttachment();
 570         }
 571
 572         if (auto shadow = RenderingEngine::get_shadow_renderer())
 573                 shadow->removeNodeFromShadowList(getSceneNode());
 574
 575         if (m_meshnode) {
 576                 m_meshnode->remove();
 577                 m_meshnode->drop();
 578                 m_meshnode = nullptr;
 579         } else if (m_animated_meshnode) {
 580                 m_animated_meshnode->remove();
 581                 m_animated_meshnode->drop();
 582                 m_animated_meshnode = nullptr;
 583         } else if (m_wield_meshnode) {
 584                 m_wield_meshnode->remove();
 585                 m_wield_meshnode->drop();
 586                 m_wield_meshnode = nullptr;
 587         } else if (m_spritenode) {
 588                 m_spritenode->remove();
 589                 m_spritenode->drop();
 590                 m_spritenode = nullptr;
 591         }
 592
 593         if (m_matrixnode) {
 594                 m_matrixnode->remove();
 595                 m_matrixnode->drop();
 596                 m_matrixnode = nullptr;
 597         }
 598
 599         if (m_nametag) {
 600                 m_client->getCamera()->removeNametag(m_nametag);
 601                 m_nametag = nullptr;
 602         }
 603
 604         if (m_marker && m_client->getMinimap())
 605                 m_client->getMinimap()->removeMarker(&m_marker);
 606 }
 607
 608 void GenericCAO::addToScene(ITextureSource *tsrc, scene::ISceneManager *smgr)
 609 {
 610         m_smgr = smgr;
 611
 612         if (getSceneNode() != NULL) {
 613                 return;
 614         }
 615
 616         m_visuals_expired = false;
 617
 618         if (!m_prop.is_visible)
 619                 return;
 620
 621         infostream << "GenericCAO::addToScene(): " << m_prop.visual << std::endl;
 622
 623         if (m_enable_shaders) {
 624                 IShaderSource *shader_source = m_client->getShaderSource();
 625                 MaterialType material_type;
 626
 627                 if (m_prop.shaded && m_prop.glow == 0)
 628                         material_type = (m_prop.use_texture_alpha) ?
 629                                 TILE_MATERIAL_ALPHA : TILE_MATERIAL_BASIC;
 630                 else
 631                         material_type = (m_prop.use_texture_alpha) ?
 632                                 TILE_MATERIAL_PLAIN_ALPHA : TILE_MATERIAL_PLAIN;
 633
 634                 u32 shader_id = shader_source->getShader("object_shader", material_type, NDT_NORMAL);
 635                 m_material_type = shader_source->getShaderInfo(shader_id).material;
 636         } else {
 637                 m_material_type = (m_prop.use_texture_alpha) ?
 638                         video::EMT_TRANSPARENT_ALPHA_CHANNEL : video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 639         }
 640
 641         auto grabMatrixNode = [this] {
 642                 m_matrixnode = m_smgr->addDummyTransformationSceneNode();
 643                 m_matrixnode->grab();
 644         };
 645
 646         auto setSceneNodeMaterial = [this] (scene::ISceneNode *node) {
 647                 node->setMaterialFlag(video::EMF_LIGHTING, false);
 648                 node->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 649                 node->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 650                 node->setMaterialType(m_material_type);
 651
 652                 if (m_enable_shaders) {
 653                         node->setMaterialFlag(video::EMF_GOURAUD_SHADING, false);
 654                         node->setMaterialFlag(video::EMF_NORMALIZE_NORMALS, true);
 655                 }
 656         };
 657
 658         if (m_prop.visual == "sprite") {
 659                 grabMatrixNode();
 660                 m_spritenode = m_smgr->addBillboardSceneNode(
 661                                 m_matrixnode, v2f(1, 1), v3f(0,0,0), -1);
 662                 m_spritenode->grab();
 663                 m_spritenode->setMaterialTexture(0,
 664                                 tsrc->getTextureForMesh("no_texture.png"));
 665
 666                 setSceneNodeMaterial(m_spritenode);
 667
 668                 m_spritenode->setSize(v2f(m_prop.visual_size.X,
 669                                 m_prop.visual_size.Y) * BS);
 670                 {
 671                         const float txs = 1.0 / 1;
 672                         const float tys = 1.0 / 1;
 673                         setBillboardTextureMatrix(m_spritenode,
 674                                         txs, tys, 0, 0);
 675                 }
 676         } else if (m_prop.visual == "upright_sprite") {
 677                 grabMatrixNode();
 678                 scene::SMesh *mesh = new scene::SMesh();
 679                 double dx = BS * m_prop.visual_size.X / 2;
 680                 double dy = BS * m_prop.visual_size.Y / 2;
 681                 video::SColor c(0xFFFFFFFF);
 682
 683                 { // Front
 684                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 685                         video::S3DVertex vertices[4] = {
 686                                 video::S3DVertex(-dx, -dy, 0, 0,0,1, c, 1,1),
 687                                 video::S3DVertex( dx, -dy, 0, 0,0,1, c, 0,1),
 688                                 video::S3DVertex( dx,  dy, 0, 0,0,1, c, 0,0),
 689                                 video::S3DVertex(-dx,  dy, 0, 0,0,1, c, 1,0),
 690                         };
 691                         if (m_is_player) {
 692                                 // Move minimal Y position to 0 (feet position)
 693                                 for (video::S3DVertex &vertex : vertices)
 694                                         vertex.Pos.Y += dy;
 695                         }
 696                         u16 indices[] = {0,1,2,2,3,0};
 697                         buf->append(vertices, 4, indices, 6);
 698                         // Set material
 699                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 700                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 701                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 702                         buf->getMaterial().MaterialType = m_material_type;
 703
 704                         if (m_enable_shaders) {
 705                                 buf->getMaterial().EmissiveColor = c;
 706                                 buf->getMaterial().setFlag(video::EMF_GOURAUD_SHADING, false);
 707                                 buf->getMaterial().setFlag(video::EMF_NORMALIZE_NORMALS, true);
 708                         }
 709
 710                         // Add to mesh
 711                         mesh->addMeshBuffer(buf);
 712                         buf->drop();
 713                 }
 714                 { // Back
 715                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 716                         video::S3DVertex vertices[4] = {
 717                                 video::S3DVertex( dx,-dy, 0, 0,0,-1, c, 1,1),
 718                                 video::S3DVertex(-dx,-dy, 0, 0,0,-1, c, 0,1),
 719                                 video::S3DVertex(-dx, dy, 0, 0,0,-1, c, 0,0),
 720                                 video::S3DVertex( dx, dy, 0, 0,0,-1, c, 1,0),
 721                         };
 722                         if (m_is_player) {
 723                                 // Move minimal Y position to 0 (feet position)
 724                                 for (video::S3DVertex &vertex : vertices)
 725                                         vertex.Pos.Y += dy;
 726                         }
 727                         u16 indices[] = {0,1,2,2,3,0};
 728                         buf->append(vertices, 4, indices, 6);
 729                         // Set material
 730                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 731                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 732                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 733                         buf->getMaterial().MaterialType = m_material_type;
 734
 735                         if (m_enable_shaders) {
 736                                 buf->getMaterial().EmissiveColor = c;
 737                                 buf->getMaterial().setFlag(video::EMF_GOURAUD_SHADING, false);
 738                                 buf->getMaterial().setFlag(video::EMF_NORMALIZE_NORMALS, true);
 739                         }
 740
 741                         // Add to mesh
 742                         mesh->addMeshBuffer(buf);
 743                         buf->drop();
 744                 }
 745                 m_meshnode = m_smgr->addMeshSceneNode(mesh, m_matrixnode);
 746                 m_meshnode->grab();
 747                 mesh->drop();
 748         } else if (m_prop.visual == "cube") {
 749                 grabMatrixNode();
 750                 scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 751                 m_meshnode = m_smgr->addMeshSceneNode(mesh, m_matrixnode);
 752                 m_meshnode->grab();
 753                 mesh->drop();
 754
 755                 m_meshnode->setScale(m_prop.visual_size);
 756                 m_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
 757                         m_prop.backface_culling);
 758
 759                 setSceneNodeMaterial(m_meshnode);
 760         } else if (m_prop.visual == "mesh") {
 761                 grabMatrixNode();
 762                 scene::IAnimatedMesh *mesh = m_client->getMesh(m_prop.mesh, true);
 763                 if (mesh) {
 764                         if (!checkMeshNormals(mesh)) {
 765                                 infostream << "GenericCAO: recalculating normals for mesh "
 766                                         << m_prop.mesh << std::endl;
 767                                 m_smgr->getMeshManipulator()->
 768                                                 recalculateNormals(mesh, true, false);
 769                         }
 770
 771                         m_animated_meshnode = m_smgr->addAnimatedMeshSceneNode(mesh, m_matrixnode);
 772                         m_animated_meshnode->grab();
 773                         mesh->drop(); // The scene node took hold of it
 774                         m_animated_meshnode->animateJoints(); // Needed for some animations
 775                         m_animated_meshnode->setScale(m_prop.visual_size);
 776
 777                         // set vertex colors to ensure alpha is set
 778                         setMeshColor(m_animated_meshnode->getMesh(), video::SColor(0xFFFFFFFF));
 779
 780                         setAnimatedMeshColor(m_animated_meshnode, video::SColor(0xFFFFFFFF));
 781
 782                         setSceneNodeMaterial(m_animated_meshnode);
 783
 784                         m_animated_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
 785                                 m_prop.backface_culling);
 786                 } else
 787                         errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;
 788         } else if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 789                 grabMatrixNode();
 790                 ItemStack item;
 791                 if (m_prop.wield_item.empty()) {
 792                         // Old format, only textures are specified.
 793                         infostream << "textures: " << m_prop.textures.size() << std::endl;
 794                         if (!m_prop.textures.empty()) {
 795                                 infostream << "textures[0]: " << m_prop.textures[0]
 796                                         << std::endl;
 797                                 IItemDefManager *idef = m_client->idef();
 798                                 item = ItemStack(m_prop.textures[0], 1, 0, idef);
 799                         }
 800                 } else {
 801                         infostream << "serialized form: " << m_prop.wield_item << std::endl;
 802                         item.deSerialize(m_prop.wield_item, m_client->idef());
 803                 }
 804                 m_wield_meshnode = new WieldMeshSceneNode(m_smgr, -1);
 805                 m_wield_meshnode->setItem(item, m_client,
 806                         (m_prop.visual == "wielditem"));
 807
 808                 m_wield_meshnode->setScale(m_prop.visual_size / 2.0f);
 809                 m_wield_meshnode->setColor(video::SColor(0xFFFFFFFF));
 810         } else {
 811                 infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 812                                 <<"\" not supported"<<std::endl;
 813         }
 814
 815         /* don't update while punch texture modifier is active */
 816         if (m_reset_textures_timer < 0)
 817                 updateTextures(m_current_texture_modifier);
 818
 819         if (scene::ISceneNode *node = getSceneNode()) {
 820                 if (m_matrixnode)
 821                         node->setParent(m_matrixnode);
 822
 823                 if (auto shadow = RenderingEngine::get_shadow_renderer())
 824                         shadow->addNodeToShadowList(node);
 825         }
 826
 827         updateNametag();
 828         updateMarker();
 829         updateNodePos();
 830         updateAnimation();
 831         updateBonePosition();
 832         updateAttachments();
 833         setNodeLight(m_last_light);
 834         updateMeshCulling();
 835
 836         if (m_animated_meshnode) {
 837                 u32 mat_count = m_animated_meshnode->getMaterialCount();
 838                 if (mat_count == 0 || m_prop.textures.empty()) {
 839                         // nothing
 840                 } else if (mat_count > m_prop.textures.size()) {
 841                         std::ostringstream oss;
 842                         oss << "GenericCAO::addToScene(): Model "
 843                                 << m_prop.mesh << " loaded with " << mat_count
 844                                 << " mesh buffers but only " << m_prop.textures.size()
 845                                 << " texture(s) specifed, this is deprecated.";
 846                         logOnce(oss, warningstream);
 847
 848                         video::ITexture *last = m_animated_meshnode->getMaterial(0).TextureLayer[0].Texture;
 849                         for (u32 i = 1; i < mat_count; i++) {
 850                                 auto &layer = m_animated_meshnode->getMaterial(i).TextureLayer[0];
 851                                 if (!layer.Texture)
 852                                         layer.Texture = last;
 853                                 last = layer.Texture;
 854                         }
 855                 }
 856         }
 857 }
 858
 859 void GenericCAO::updateLight(u32 day_night_ratio)
 860 {
 861         if (m_glow < 0)
 862                 return;
 863
 864         u16 light_at_pos = 0;
 865         u8 light_at_pos_intensity = 0;
 866         bool pos_ok = false;
 867
 868         v3s16 pos[3];
 869         u16 npos = getLightPosition(pos);
 870         for (u16 i = 0; i < npos; i++) {
 871                 bool this_ok;
 872                 MapNode n = m_env->getMap().getNode(pos[i], &this_ok);
 873                 if (this_ok) {
 874                         u16 this_light = getInteriorLight(n, 0, m_client->ndef());
 875                         u8 this_light_intensity = MYMAX(this_light & 0xFF, (this_light >> 8) && 0xFF);
 876                         if (this_light_intensity > light_at_pos_intensity) {
 877                                 light_at_pos = this_light;
 878                                 light_at_pos_intensity = this_light_intensity;
 879                         }
 880                         pos_ok = true;
 881                 }
 882         }
 883         if (!pos_ok)
 884                 light_at_pos = LIGHT_SUN;
 885
 886         video::SColor light = encode_light(light_at_pos, m_glow);
 887         if (!m_enable_shaders)
 888                 final_color_blend(&light, light_at_pos, day_night_ratio);
 889
 890         if (light != m_last_light) {
 891                 m_last_light = light;
 892                 setNodeLight(light);
 893         }
 894 }
 895
 896 void GenericCAO::setNodeLight(const video::SColor &light_color)
 897 {
 898         if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 899                 if (m_wield_meshnode)
 900                         m_wield_meshnode->setNodeLightColor(light_color);
 901                 return;
 902         }
 903
 904         if (m_enable_shaders) {
 905                 if (m_prop.visual == "upright_sprite") {
 906                         if (!m_meshnode)
 907                                 return;
 908
 909                         scene::IMesh *mesh = m_meshnode->getMesh();
 910                         for (u32 i = 0; i < mesh->getMeshBufferCount(); ++i) {
 911                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
 912                                 buf->getMaterial().EmissiveColor = light_color;
 913                         }
 914                 } else {
 915                         scene::ISceneNode *node = getSceneNode();
 916                         if (!node)
 917                                 return;
 918
 919                         for (u32 i = 0; i < node->getMaterialCount(); ++i) {
 920                                 video::SMaterial &material = node->getMaterial(i);
 921                                 material.EmissiveColor = light_color;
 922                         }
 923                 }
 924         } else {
 925                 if (m_meshnode) {
 926                         setMeshColor(m_meshnode->getMesh(), light_color);
 927                 } else if (m_animated_meshnode) {
 928                         setAnimatedMeshColor(m_animated_meshnode, light_color);
 929                 } else if (m_spritenode) {
 930                         m_spritenode->setColor(light_color);
 931                 }
 932         }
 933 }
 934
 935 u16 GenericCAO::getLightPosition(v3s16 *pos)
 936 {
 937         const auto &box = m_prop.collisionbox;
 938         pos[0] = floatToInt(m_position + box.MinEdge * BS, BS);
 939         pos[1] = floatToInt(m_position + box.MaxEdge * BS, BS);
 940
 941         // Skip center pos if it falls into the same node as Min or MaxEdge
 942         if ((box.MaxEdge - box.MinEdge).getLengthSQ() < 3.0f)
 943                 return 2;
 944         pos[2] = floatToInt(m_position + box.getCenter() * BS, BS);
 945         return 3;
 946 }
 947
 948 void GenericCAO::updateMarker()
 949 {
 950         if (!m_client->getMinimap())
 951                 return;
 952
 953         if (!m_prop.show_on_minimap) {
 954                 if (m_marker)
 955                         m_client->getMinimap()->removeMarker(&m_marker);
 956                 return;
 957         }
 958
 959         if (m_marker)
 960                 return;
 961
 962         scene::ISceneNode *node = getSceneNode();
 963         if (!node)
 964                 return;
 965         m_marker = m_client->getMinimap()->addMarker(node);
 966 }
 967
 968 void GenericCAO::updateNametag()
 969 {
 970         if (m_is_local_player) // No nametag for local player
 971                 return;
 972
 973         if (m_prop.nametag.empty() || m_prop.nametag_color.getAlpha() == 0) {
 974                 // Delete nametag
 975                 if (m_nametag) {
 976                         m_client->getCamera()->removeNametag(m_nametag);
 977                         m_nametag = nullptr;
 978                 }
 979                 return;
 980         }
 981
 982         scene::ISceneNode *node = getSceneNode();
 983         if (!node)
 984                 return;
 985
 986         v3f pos;
 987         pos.Y = m_prop.selectionbox.MaxEdge.Y + 0.3f;
 988         if (!m_nametag) {
 989                 // Add nametag
 990                 m_nametag = m_client->getCamera()->addNametag(node,
 991                         m_prop.nametag, m_prop.nametag_color,
 992                         m_prop.nametag_bgcolor, pos);
 993         } else {
 994                 // Update nametag
 995                 m_nametag->text = m_prop.nametag;
 996                 m_nametag->textcolor = m_prop.nametag_color;
 997                 m_nametag->bgcolor = m_prop.nametag_bgcolor;
 998                 m_nametag->pos = pos;
 999         }
1000 }
1001
1002 void GenericCAO::updateNodePos()
1003 {
1004         if (getParent() != NULL)
1005                 return;
1006
1007         scene::ISceneNode *node = getSceneNode();
1008
1009         if (node) {
1010                 v3s16 camera_offset = m_env->getCameraOffset();
1011                 v3f pos = pos_translator.val_current -
1012                                 intToFloat(camera_offset, BS);
1013                 getPosRotMatrix().setTranslation(pos);
1014                 if (node != m_spritenode) { // rotate if not a sprite
1015                         v3f rot = m_is_local_player ? -m_rotation : -rot_translator.val_current;
1016                         setPitchYawRoll(getPosRotMatrix(), rot);
1017                 }
1018         }
1019 }
1020
1021 void GenericCAO::step(float dtime, ClientEnvironment *env)
1022 {
1023         // Handle model animations and update positions instantly to prevent lags
1024         if (m_is_local_player) {
1025                 LocalPlayer *player = m_env->getLocalPlayer();
1026                 m_position = player->getPosition();
1027                 pos_translator.val_current = m_position;
1028                 m_rotation.Y = wrapDegrees_0_360(player->getYaw());
1029                 rot_translator.val_current = m_rotation;
1030
1031                 if (m_is_visible) {
1032                         int old_anim = player->last_animation;
1033                         float old_anim_speed = player->last_animation_speed;
1034                         m_velocity = v3f(0,0,0);
1035                         m_acceleration = v3f(0,0,0);
1036                         const PlayerControl &controls = player->getPlayerControl();
1037                         f32 new_speed = player->local_animation_speed;
1038
1039                         bool walking = false;
1040                         if (controls.movement_speed > 0.001f) {
1041                                 new_speed *= controls.movement_speed;
1042                                 walking = true;
1043                         }
1044
1045                         v2s32 new_anim = v2s32(0,0);
1046                         bool allow_update = false;
1047
1048                         // increase speed if using fast or flying fast
1049                         if((g_settings->getBool("fast_move") &&
1050                                         m_client->checkLocalPrivilege("fast")) &&
1051                                         (controls.aux1 ||
1052                                         (!player->touching_ground &&
1053                                         g_settings->getBool("free_move") &&
1054                                         m_client->checkLocalPrivilege("fly"))))
1055                                         new_speed *= 1.5;
1056                         // slowdown speed if sneaking
1057                         if (controls.sneak && walking)
1058                                 new_speed /= 2;
1059
1060                         if (walking && (controls.dig || controls.place)) {
1061                                 new_anim = player->local_animations[3];
1062                                 player->last_animation = WD_ANIM;
1063                         } else if (walking) {
1064                                 new_anim = player->local_animations[1];
1065                                 player->last_animation = WALK_ANIM;
1066                         } else if (controls.dig || controls.place) {
1067                                 new_anim = player->local_animations[2];
1068                                 player->last_animation = DIG_ANIM;
1069                         }
1070
1071                         // Apply animations if input detected and not attached
1072                         // or set idle animation
1073                         if ((new_anim.X + new_anim.Y) > 0 && !getParent()) {
1074                                 allow_update = true;
1075                                 m_animation_range = new_anim;
1076                                 m_animation_speed = new_speed;
1077                                 player->last_animation_speed = m_animation_speed;
1078                         } else {
1079                                 player->last_animation = NO_ANIM;
1080
1081                                 if (old_anim != NO_ANIM) {
1082                                         m_animation_range = player->local_animations[0];
1083                                         updateAnimation();
1084                                 }
1085                         }
1086
1087                         // Update local player animations
1088                         if ((player->last_animation != old_anim ||
1089                                         m_animation_speed != old_anim_speed) &&
1090                                         player->last_animation != NO_ANIM && allow_update)
1091                                 updateAnimation();
1092
1093                 }
1094         }
1095
1096         if (m_visuals_expired && m_smgr) {
1097                 m_visuals_expired = false;
1098
1099                 // Attachments, part 1: All attached objects must be unparented first,
1100                 // or Irrlicht causes a segmentation fault
1101                 for (u16 cao_id : m_attachment_child_ids) {
1102                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
1103                         if (obj) {
1104                                 scene::ISceneNode *child_node = obj->getSceneNode();
1105                                 // The node's parent is always an IDummyTraformationSceneNode,
1106                                 // so we need to reparent that one instead.
1107                                 if (child_node)
1108                                         child_node->getParent()->setParent(m_smgr->getRootSceneNode());
1109                         }
1110                 }
1111
1112                 removeFromScene(false);
1113                 addToScene(m_client->tsrc(), m_smgr);
1114
1115                 // Attachments, part 2: Now that the parent has been refreshed, put its attachments back
1116                 for (u16 cao_id : m_attachment_child_ids) {
1117                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
1118                         if (obj)
1119                                 obj->updateAttachments();
1120                 }
1121         }
1122
1123         // Make sure m_is_visible is always applied
1124         scene::ISceneNode *node = getSceneNode();
1125         if (node)
1126                 node->setVisible(m_is_visible);
1127
1128         if(getParent() != NULL) // Attachments should be glued to their parent by Irrlicht
1129         {
1130                 // Set these for later
1131                 m_position = getPosition();
1132                 m_velocity = v3f(0,0,0);
1133                 m_acceleration = v3f(0,0,0);
1134                 pos_translator.val_current = m_position;
1135                 pos_translator.val_target = m_position;
1136         } else {
1137                 rot_translator.translate(dtime);
1138                 v3f lastpos = pos_translator.val_current;
1139
1140                 if(m_prop.physical)
1141                 {
1142                         aabb3f box = m_prop.collisionbox;
1143                         box.MinEdge *= BS;
1144                         box.MaxEdge *= BS;
1145                         collisionMoveResult moveresult;
1146                         f32 pos_max_d = BS*0.125; // Distance per iteration
1147                         v3f p_pos = m_position;
1148                         v3f p_velocity = m_velocity;
1149                         moveresult = collisionMoveSimple(env,env->getGameDef(),
1150                                         pos_max_d, box, m_prop.stepheight, dtime,
1151                                         &p_pos, &p_velocity, m_acceleration,
1152                                         this, m_prop.collideWithObjects);
1153                         // Apply results
1154                         m_position = p_pos;
1155                         m_velocity = p_velocity;
1156
1157                         bool is_end_position = moveresult.collides;
1158                         pos_translator.update(m_position, is_end_position, dtime);
1159                 } else {
1160                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
1161                         m_velocity += dtime * m_acceleration;
1162                         pos_translator.update(m_position, pos_translator.aim_is_end,
1163                                         pos_translator.anim_time);
1164                 }
1165                 pos_translator.translate(dtime);
1166                 updateNodePos();
1167
1168                 float moved = lastpos.getDistanceFrom(pos_translator.val_current);
1169                 m_step_distance_counter += moved;
1170                 if (m_step_distance_counter > 1.5f * BS) {
1171                         m_step_distance_counter = 0.0f;
1172                         if (!m_is_local_player && m_prop.makes_footstep_sound) {
1173                                 const NodeDefManager *ndef = m_client->ndef();
1174                                 v3s16 p = floatToInt(getPosition() +
1175                                         v3f(0.0f, (m_prop.collisionbox.MinEdge.Y - 0.5f) * BS, 0.0f), BS);
1176                                 MapNode n = m_env->getMap().getNode(p);
1177                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
1178                                 // Reduce footstep gain, as non-local-player footsteps are
1179                                 // somehow louder.
1180                                 spec.gain *= 0.6f;
1181                                 m_client->sound()->playSoundAt(spec, false, getPosition());
1182                         }
1183                 }
1184         }
1185
1186         m_anim_timer += dtime;
1187         if(m_anim_timer >= m_anim_framelength)
1188         {
1189                 m_anim_timer -= m_anim_framelength;
1190                 m_anim_frame++;
1191                 if(m_anim_frame >= m_anim_num_frames)
1192                         m_anim_frame = 0;
1193         }
1194
1195         updateTexturePos();
1196
1197         if(m_reset_textures_timer >= 0)
1198         {
1199                 m_reset_textures_timer -= dtime;
1200                 if(m_reset_textures_timer <= 0) {
1201                         m_reset_textures_timer = -1;
1202                         updateTextures(m_previous_texture_modifier);
1203                 }
1204         }
1205
1206         if (!getParent() && node && fabs(m_prop.automatic_rotate) > 0.001f) {
1207                 // This is the child node's rotation. It is only used for automatic_rotate.
1208                 v3f local_rot = node->getRotation();
1209                 local_rot.Y = modulo360f(local_rot.Y - dtime * core::RADTODEG *
1210                                 m_prop.automatic_rotate);
1211                 node->setRotation(local_rot);
1212         }
1213
1214         if (!getParent() && m_prop.automatic_face_movement_dir &&
1215                         (fabs(m_velocity.Z) > 0.001f || fabs(m_velocity.X) > 0.001f)) {
1216                 float target_yaw = atan2(m_velocity.Z, m_velocity.X) * 180 / M_PI
1217                                 + m_prop.automatic_face_movement_dir_offset;
1218                 float max_rotation_per_sec =
1219                                 m_prop.automatic_face_movement_max_rotation_per_sec;
1220
1221                 if (max_rotation_per_sec > 0) {
1222                         wrappedApproachShortest(m_rotation.Y, target_yaw,
1223                                 dtime * max_rotation_per_sec, 360.f);
1224                 } else {
1225                         // Negative values of max_rotation_per_sec mean disabled.
1226                         m_rotation.Y = target_yaw;
1227                 }
1228
1229                 rot_translator.val_current = m_rotation;
1230                 updateNodePos();
1231         }
1232
1233         if (m_animated_meshnode) {
1234                 // Everything must be updated; the whole transform
1235                 // chain as well as the animated mesh node.
1236                 // Otherwise, bone attachments would be relative to
1237                 // a position that's one frame old.
1238                 if (m_matrixnode)
1239                         updatePositionRecursive(m_matrixnode);
1240                 m_animated_meshnode->updateAbsolutePosition();
1241                 m_animated_meshnode->animateJoints();
1242                 updateBonePosition();
1243         }
1244 }
1245
1246 void GenericCAO::updateTexturePos()
1247 {
1248         if(m_spritenode)
1249         {
1250                 scene::ICameraSceneNode* camera =
1251                                 m_spritenode->getSceneManager()->getActiveCamera();
1252                 if(!camera)
1253                         return;
1254                 v3f cam_to_entity = m_spritenode->getAbsolutePosition()
1255                                 - camera->getAbsolutePosition();
1256                 cam_to_entity.normalize();
1257
1258                 int row = m_tx_basepos.Y;
1259                 int col = m_tx_basepos.X;
1260
1261                 // Yawpitch goes rightwards
1262                 if (m_tx_select_horiz_by_yawpitch) {
1263                         if (cam_to_entity.Y > 0.75)
1264                                 col += 5;
1265                         else if (cam_to_entity.Y < -0.75)
1266                                 col += 4;
1267                         else {
1268                                 float mob_dir =
1269                                                 atan2(cam_to_entity.Z, cam_to_entity.X) / M_PI * 180.;
1270                                 float dir = mob_dir - m_rotation.Y;
1271                                 dir = wrapDegrees_180(dir);
1272                                 if (std::fabs(wrapDegrees_180(dir - 0)) <= 45.1f)
1273                                         col += 2;
1274                                 else if(std::fabs(wrapDegrees_180(dir - 90)) <= 45.1f)
1275                                         col += 3;
1276                                 else if(std::fabs(wrapDegrees_180(dir - 180)) <= 45.1f)
1277                                         col += 0;
1278                                 else if(std::fabs(wrapDegrees_180(dir + 90)) <= 45.1f)
1279                                         col += 1;
1280                                 else
1281                                         col += 4;
1282                         }
1283                 }
1284
1285                 // Animation goes downwards
1286                 row += m_anim_frame;
1287
1288                 float txs = m_tx_size.X;
1289                 float tys = m_tx_size.Y;
1290                 setBillboardTextureMatrix(m_spritenode, txs, tys, col, row);
1291         }
1292
1293         else if (m_meshnode) {
1294                 if (m_prop.visual == "upright_sprite") {
1295                         int row = m_tx_basepos.Y;
1296                         int col = m_tx_basepos.X;
1297
1298                         // Animation goes downwards
1299                         row += m_anim_frame;
1300
1301                         const auto &tx = m_tx_size;
1302                         v2f t[4] = { // cf. vertices in GenericCAO::addToScene()
1303                                 tx * v2f(col+1, row+1),
1304                                 tx * v2f(col, row+1),
1305                                 tx * v2f(col, row),
1306                                 tx * v2f(col+1, row),
1307                         };
1308                         auto mesh = m_meshnode->getMesh();
1309                         setMeshBufferTextureCoords(mesh->getMeshBuffer(0), t, 4);
1310                         setMeshBufferTextureCoords(mesh->getMeshBuffer(1), t, 4);
1311                 }
1312         }
1313 }
1314
1315 // Do not pass by reference, see header.
1316 void GenericCAO::updateTextures(std::string mod)
1317 {
1318         ITextureSource *tsrc = m_client->tsrc();
1319
1320         bool use_trilinear_filter = g_settings->getBool("trilinear_filter");
1321         bool use_bilinear_filter = g_settings->getBool("bilinear_filter");
1322         bool use_anisotropic_filter = g_settings->getBool("anisotropic_filter");
1323
1324         m_previous_texture_modifier = m_current_texture_modifier;
1325         m_current_texture_modifier = mod;
1326         m_glow = m_prop.glow;
1327
1328         video::ITexture *shadow_texture = nullptr;
1329         if (auto shadow = RenderingEngine::get_shadow_renderer())
1330                 shadow_texture = shadow->get_texture();
1331
1332         const u32 TEXTURE_LAYER_SHADOW = 3;
1333
1334         if (m_spritenode) {
1335                 if (m_prop.visual == "sprite") {
1336                         std::string texturestring = "no_texture.png";
1337                         if (!m_prop.textures.empty())
1338                                 texturestring = m_prop.textures[0];
1339                         texturestring += mod;
1340                         m_spritenode->getMaterial(0).MaterialType = m_material_type;
1341                         m_spritenode->getMaterial(0).MaterialTypeParam = 0.5f;
1342                         m_spritenode->setMaterialTexture(0,
1343                                         tsrc->getTextureForMesh(texturestring));
1344                         m_spritenode->setMaterialTexture(TEXTURE_LAYER_SHADOW, shadow_texture);
1345
1346                         // This allows setting per-material colors. However, until a real lighting
1347                         // system is added, the code below will have no effect. Once MineTest
1348                         // has directional lighting, it should work automatically.
1349                         if (!m_prop.colors.empty()) {
1350                                 m_spritenode->getMaterial(0).AmbientColor = m_prop.colors[0];
1351                                 m_spritenode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1352                                 m_spritenode->getMaterial(0).SpecularColor = m_prop.colors[0];
1353                         }
1354
1355                         m_spritenode->getMaterial(0).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1356                         m_spritenode->getMaterial(0).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1357                         m_spritenode->getMaterial(0).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1358                 }
1359         }
1360
1361         else if (m_animated_meshnode) {
1362                 if (m_prop.visual == "mesh") {
1363                         for (u32 i = 0; i < m_prop.textures.size() &&
1364                                         i < m_animated_meshnode->getMaterialCount(); ++i) {
1365                                 std::string texturestring = m_prop.textures[i];
1366                                 if (texturestring.empty())
1367                                         continue; // Empty texture string means don't modify that material
1368                                 texturestring += mod;
1369                                 video::ITexture* texture = tsrc->getTextureForMesh(texturestring);
1370                                 if (!texture) {
1371                                         errorstream<<"GenericCAO::updateTextures(): Could not load texture "<<texturestring<<std::endl;
1372                                         continue;
1373                                 }
1374
1375                                 // Set material flags and texture
1376                                 video::SMaterial& material = m_animated_meshnode->getMaterial(i);
1377                                 material.MaterialType = m_material_type;
1378                                 material.MaterialTypeParam = 0.5f;
1379                                 material.TextureLayer[0].Texture = texture;
1380                                 material.TextureLayer[TEXTURE_LAYER_SHADOW].Texture = shadow_texture;
1381                                 material.setFlag(video::EMF_LIGHTING, true);
1382                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1383                                 material.setFlag(video::EMF_BACK_FACE_CULLING, m_prop.backface_culling);
1384
1385                                 // don't filter low-res textures, makes them look blurry
1386                                 // player models have a res of 64
1387                                 const core::dimension2d<u32> &size = texture->getOriginalSize();
1388                                 const u32 res = std::min(size.Height, size.Width);
1389                                 use_trilinear_filter &= res > 64;
1390                                 use_bilinear_filter &= res > 64;
1391
1392                                 m_animated_meshnode->getMaterial(i)
1393                                                 .setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1394                                 m_animated_meshnode->getMaterial(i)
1395                                                 .setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1396                                 m_animated_meshnode->getMaterial(i)
1397                                                 .setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1398                         }
1399                         for (u32 i = 0; i < m_prop.colors.size() &&
1400                         i < m_animated_meshnode->getMaterialCount(); ++i)
1401                         {
1402                                 // This allows setting per-material colors. However, until a real lighting
1403                                 // system is added, the code below will have no effect. Once MineTest
1404                                 // has directional lighting, it should work automatically.
1405                                 m_animated_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1406                                 m_animated_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1407                                 m_animated_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1408                         }
1409                 }
1410         }
1411
1412         else if (m_meshnode) {
1413                 if(m_prop.visual == "cube")
1414                 {
1415                         for (u32 i = 0; i < 6; ++i)
1416                         {
1417                                 std::string texturestring = "no_texture.png";
1418                                 if(m_prop.textures.size() > i)
1419                                         texturestring = m_prop.textures[i];
1420                                 texturestring += mod;
1421
1422
1423                                 // Set material flags and texture
1424                                 video::SMaterial& material = m_meshnode->getMaterial(i);
1425                                 material.MaterialType = m_material_type;
1426                                 material.MaterialTypeParam = 0.5f;
1427                                 material.setFlag(video::EMF_LIGHTING, false);
1428                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1429                                 material.setTexture(0,
1430                                                 tsrc->getTextureForMesh(texturestring));
1431                                 material.setTexture(TEXTURE_LAYER_SHADOW, shadow_texture);
1432                                 material.getTextureMatrix(0).makeIdentity();
1433
1434                                 // This allows setting per-material colors. However, until a real lighting
1435                                 // system is added, the code below will have no effect. Once MineTest
1436                                 // has directional lighting, it should work automatically.
1437                                 if(m_prop.colors.size() > i)
1438                                 {
1439                                         m_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1440                                         m_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1441                                         m_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1442                                 }
1443
1444                                 m_meshnode->getMaterial(i).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1445                                 m_meshnode->getMaterial(i).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1446                                 m_meshnode->getMaterial(i).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1447                         }
1448                 } else if (m_prop.visual == "upright_sprite") {
1449                         scene::IMesh *mesh = m_meshnode->getMesh();
1450                         {
1451                                 std::string tname = "no_texture.png";
1452                                 if (!m_prop.textures.empty())
1453                                         tname = m_prop.textures[0];
1454                                 tname += mod;
1455                                 auto& material = m_meshnode->getMaterial(0);
1456                                 material.setTexture(0,
1457                                                 tsrc->getTextureForMesh(tname));
1458                                 material.setTexture(TEXTURE_LAYER_SHADOW, shadow_texture);
1459
1460                                 // This allows setting per-material colors. However, until a real lighting
1461                                 // system is added, the code below will have no effect. Once MineTest
1462                                 // has directional lighting, it should work automatically.
1463                                 if(!m_prop.colors.empty()) {
1464                                         material.AmbientColor = m_prop.colors[0];
1465                                         material.DiffuseColor = m_prop.colors[0];
1466                                         material.SpecularColor = m_prop.colors[0];
1467                                 }
1468
1469                                 material.setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1470                                 material.setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1471                                 material.setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1472                         }
1473                         {
1474                                 std::string tname = "no_texture.png";
1475                                 if (m_prop.textures.size() >= 2)
1476                                         tname = m_prop.textures[1];
1477                                 else if (!m_prop.textures.empty())
1478                                         tname = m_prop.textures[0];
1479                                 tname += mod;
1480                                 auto& material = m_meshnode->getMaterial(1);
1481                                 material.setTexture(0,
1482                                                 tsrc->getTextureForMesh(tname));
1483                                 material.setTexture(TEXTURE_LAYER_SHADOW, shadow_texture);
1484
1485                                 // This allows setting per-material colors. However, until a real lighting
1486                                 // system is added, the code below will have no effect. Once MineTest
1487                                 // has directional lighting, it should work automatically.
1488                                 if (m_prop.colors.size() >= 2) {
1489                                         material.AmbientColor = m_prop.colors[1];
1490                                         material.DiffuseColor = m_prop.colors[1];
1491                                         material.SpecularColor = m_prop.colors[1];
1492                                 } else if (!m_prop.colors.empty()) {
1493                                         material.AmbientColor = m_prop.colors[0];
1494                                         material.DiffuseColor = m_prop.colors[0];
1495                                         material.SpecularColor = m_prop.colors[0];
1496                                 }
1497
1498                                 material.setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1499                                 material.setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1500                                 material.setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1501                         }
1502                         // Set mesh color (only if lighting is disabled)
1503                         if (!m_prop.colors.empty() && m_glow < 0)
1504                                 setMeshColor(mesh, m_prop.colors[0]);
1505                 }
1506         }
1507         // Prevent showing the player after changing texture
1508         if (m_is_local_player)
1509                 updateMeshCulling();
1510 }
1511
1512 void GenericCAO::updateAnimation()
1513 {
1514         if (!m_animated_meshnode)
1515                 return;
1516
1517         if (m_animated_meshnode->getStartFrame() != m_animation_range.X ||
1518                 m_animated_meshnode->getEndFrame() != m_animation_range.Y)
1519                         m_animated_meshnode->setFrameLoop(m_animation_range.X, m_animation_range.Y);
1520         if (m_animated_meshnode->getAnimationSpeed() != m_animation_speed)
1521                 m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1522         m_animated_meshnode->setTransitionTime(m_animation_blend);
1523         if (m_animated_meshnode->getLoopMode() != m_animation_loop)
1524                 m_animated_meshnode->setLoopMode(m_animation_loop);
1525 }
1526
1527 void GenericCAO::updateAnimationSpeed()
1528 {
1529         if (!m_animated_meshnode)
1530                 return;
1531
1532         m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1533 }
1534
1535 void GenericCAO::updateBonePosition()
1536 {
1537         if (m_bone_position.empty() || !m_animated_meshnode)
1538                 return;
1539
1540         m_animated_meshnode->setJointMode(scene::EJUOR_CONTROL); // To write positions to the mesh on render
1541         for (auto &it : m_bone_position) {
1542                 std::string bone_name = it.first;
1543                 scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
1544                 if (bone) {
1545                         bone->setPosition(it.second.X);
1546                         bone->setRotation(it.second.Y);
1547                 }
1548         }
1549
1550         // search through bones to find mistakenly rotated bones due to bug in Irrlicht
1551         for (u32 i = 0; i < m_animated_meshnode->getJointCount(); ++i) {
1552                 scene::IBoneSceneNode *bone = m_animated_meshnode->getJointNode(i);
1553                 if (!bone)
1554                         continue;
1555
1556                 //If bone is manually positioned there is no need to perform the bug check
1557                 bool skip = false;
1558                 for (auto &it : m_bone_position) {
1559                         if (it.first == bone->getName()) {
1560                                 skip = true;
1561                                 break;
1562                         }
1563                 }
1564                 if (skip)
1565                         continue;
1566
1567                 // Workaround for Irrlicht bug
1568                 // We check each bone to see if it has been rotated ~180deg from its expected position due to a bug in Irricht
1569                 // when using EJUOR_CONTROL joint control. If the bug is detected we update the bone to the proper position
1570                 // and update the bones transformation.
1571                 v3f bone_rot = bone->getRelativeTransformation().getRotationDegrees();
1572                 float offset = fabsf(bone_rot.X - bone->getRotation().X);
1573                 if (offset > 179.9f && offset < 180.1f) {
1574                         bone->setRotation(bone_rot);
1575                         bone->updateAbsolutePosition();
1576                 }
1577         }
1578         // The following is needed for set_bone_pos to propagate to
1579         // attached objects correctly.
1580         // Irrlicht ought to do this, but doesn't when using EJUOR_CONTROL.
1581         for (u32 i = 0; i < m_animated_meshnode->getJointCount(); ++i) {
1582                 auto bone = m_animated_meshnode->getJointNode(i);
1583                 // Look for the root bone.
1584                 if (bone && bone->getParent() == m_animated_meshnode) {
1585                         // Update entire skeleton.
1586                         bone->updateAbsolutePositionOfAllChildren();
1587                         break;
1588                 }
1589         }
1590 }
1591
1592 void GenericCAO::updateAttachments()
1593 {
1594         ClientActiveObject *parent = getParent();
1595
1596         m_attached_to_local = parent && parent->isLocalPlayer();
1597
1598         /*
1599         Following cases exist:
1600                 m_attachment_parent_id == 0 && !parent
1601                         This object is not attached
1602                 m_attachment_parent_id != 0 && parent
1603                         This object is attached
1604                 m_attachment_parent_id != 0 && !parent
1605                         This object will be attached as soon the parent is known
1606                 m_attachment_parent_id == 0 && parent
1607                         Impossible case
1608         */
1609
1610         if (!parent) { // Detach or don't attach
1611                 if (m_matrixnode) {
1612                         v3s16 camera_offset = m_env->getCameraOffset();
1613                         v3f old_pos = getPosition();
1614
1615                         m_matrixnode->setParent(m_smgr->getRootSceneNode());
1616                         getPosRotMatrix().setTranslation(old_pos - intToFloat(camera_offset, BS));
1617                         m_matrixnode->updateAbsolutePosition();
1618                 }
1619         }
1620         else // Attach
1621         {
1622                 parent->updateAttachments();
1623                 scene::ISceneNode *parent_node = parent->getSceneNode();
1624                 scene::IAnimatedMeshSceneNode *parent_animated_mesh_node =
1625                                 parent->getAnimatedMeshSceneNode();
1626                 if (parent_animated_mesh_node && !m_attachment_bone.empty()) {
1627                         parent_node = parent_animated_mesh_node->getJointNode(m_attachment_bone.c_str());
1628                 }
1629
1630                 if (m_matrixnode && parent_node) {
1631                         m_matrixnode->setParent(parent_node);
1632                         parent_node->updateAbsolutePosition();
1633                         getPosRotMatrix().setTranslation(m_attachment_position);
1634                         //setPitchYawRoll(getPosRotMatrix(), m_attachment_rotation);
1635                         // use Irrlicht eulers instead
1636                         getPosRotMatrix().setRotationDegrees(m_attachment_rotation);
1637                         m_matrixnode->updateAbsolutePosition();
1638                 }
1639         }
1640 }
1641
1642 bool GenericCAO::visualExpiryRequired(const ObjectProperties &new_) const
1643 {
1644         const ObjectProperties &old = m_prop;
1645         /* Visuals do not need to be expired for:
1646          * - nametag props: handled by updateNametag()
1647          * - textures:      handled by updateTextures()
1648          * - sprite props:  handled by updateTexturePos()
1649          * - glow:          handled by updateLight()
1650          * - any other properties that do not change appearance
1651          */
1652
1653         bool uses_legacy_texture = new_.wield_item.empty() &&
1654                 (new_.visual == "wielditem" || new_.visual == "item");
1655         // Ordered to compare primitive types before std::vectors
1656         return old.backface_culling != new_.backface_culling ||
1657                 old.is_visible != new_.is_visible ||
1658                 old.mesh != new_.mesh ||
1659                 old.shaded != new_.shaded ||
1660                 old.use_texture_alpha != new_.use_texture_alpha ||
1661                 old.visual != new_.visual ||
1662                 old.visual_size != new_.visual_size ||
1663                 old.wield_item != new_.wield_item ||
1664                 old.colors != new_.colors ||
1665                 (uses_legacy_texture && old.textures != new_.textures);
1666 }
1667
1668 void GenericCAO::processMessage(const std::string &data)
1669 {
1670         //infostream<<"GenericCAO: Got message"<<std::endl;
1671         std::istringstream is(data, std::ios::binary);
1672         // command
1673         u8 cmd = readU8(is);
1674         if (cmd == AO_CMD_SET_PROPERTIES) {
1675                 ObjectProperties newprops;
1676                 newprops.show_on_minimap = m_is_player; // default
1677
1678                 newprops.deSerialize(is);
1679
1680                 // Check what exactly changed
1681                 bool expire_visuals = visualExpiryRequired(newprops);
1682                 bool textures_changed = m_prop.textures != newprops.textures;
1683
1684                 // Apply changes
1685                 m_prop = std::move(newprops);
1686
1687                 m_selection_box = m_prop.selectionbox;
1688                 m_selection_box.MinEdge *= BS;
1689                 m_selection_box.MaxEdge *= BS;
1690
1691                 m_tx_size.X = 1.0f / m_prop.spritediv.X;
1692                 m_tx_size.Y = 1.0f / m_prop.spritediv.Y;
1693
1694                 if(!m_initial_tx_basepos_set){
1695                         m_initial_tx_basepos_set = true;
1696                         m_tx_basepos = m_prop.initial_sprite_basepos;
1697                 }
1698                 if (m_is_local_player) {
1699                         LocalPlayer *player = m_env->getLocalPlayer();
1700                         player->makes_footstep_sound = m_prop.makes_footstep_sound;
1701                         aabb3f collision_box = m_prop.collisionbox;
1702                         collision_box.MinEdge *= BS;
1703                         collision_box.MaxEdge *= BS;
1704                         player->setCollisionbox(collision_box);
1705                         player->setEyeHeight(m_prop.eye_height);
1706                         player->setZoomFOV(m_prop.zoom_fov);
1707                 }
1708
1709                 if ((m_is_player && !m_is_local_player) && m_prop.nametag.empty())
1710                         m_prop.nametag = m_name;
1711                 if (m_is_local_player)
1712                         m_prop.show_on_minimap = false;
1713
1714                 if (expire_visuals) {
1715                         expireVisuals();
1716                 } else {
1717                         infostream << "GenericCAO: properties updated but expiring visuals"
1718                                 << " not necessary" << std::endl;
1719                         if (textures_changed) {
1720                                 // don't update while punch texture modifier is active
1721                                 if (m_reset_textures_timer < 0)
1722                                         updateTextures(m_current_texture_modifier);
1723                         }
1724                         updateNametag();
1725                         updateMarker();
1726                 }
1727         } else if (cmd == AO_CMD_UPDATE_POSITION) {
1728                 // Not sent by the server if this object is an attachment.
1729                 // We might however get here if the server notices the object being detached before the client.
1730                 m_position = readV3F32(is);
1731                 m_velocity = readV3F32(is);
1732                 m_acceleration = readV3F32(is);
1733                 m_rotation = readV3F32(is);
1734
1735                 m_rotation = wrapDegrees_0_360_v3f(m_rotation);
1736                 bool do_interpolate = readU8(is);
1737                 bool is_end_position = readU8(is);
1738                 float update_interval = readF32(is);
1739
1740                 // Place us a bit higher if we're physical, to not sink into
1741                 // the ground due to sucky collision detection...
1742                 if(m_prop.physical)
1743                         m_position += v3f(0,0.002,0);
1744
1745                 if(getParent() != NULL) // Just in case
1746                         return;
1747
1748                 if(do_interpolate)
1749                 {
1750                         if(!m_prop.physical)
1751                                 pos_translator.update(m_position, is_end_position, update_interval);
1752                 } else {
1753                         pos_translator.init(m_position);
1754                 }
1755                 rot_translator.update(m_rotation, false, update_interval);
1756                 updateNodePos();
1757         } else if (cmd == AO_CMD_SET_TEXTURE_MOD) {
1758                 std::string mod = deSerializeString16(is);
1759
1760                 // immediately reset a engine issued texture modifier if a mod sends a different one
1761                 if (m_reset_textures_timer > 0) {
1762                         m_reset_textures_timer = -1;
1763                         updateTextures(m_previous_texture_modifier);
1764                 }
1765                 updateTextures(mod);
1766         } else if (cmd == AO_CMD_SET_SPRITE) {
1767                 v2s16 p = readV2S16(is);
1768                 int num_frames = readU16(is);
1769                 float framelength = readF32(is);
1770                 bool select_horiz_by_yawpitch = readU8(is);
1771
1772                 m_tx_basepos = p;
1773                 m_anim_num_frames = num_frames;
1774                 m_anim_frame = 0;
1775                 m_anim_framelength = framelength;
1776                 m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1777
1778                 updateTexturePos();
1779         } else if (cmd == AO_CMD_SET_PHYSICS_OVERRIDE) {
1780                 float override_speed = readF32(is);
1781                 float override_jump = readF32(is);
1782                 float override_gravity = readF32(is);
1783                 // these are sent inverted so we get true when the server sends nothing
1784                 bool sneak = !readU8(is);
1785                 bool sneak_glitch = !readU8(is);
1786                 bool new_move = !readU8(is);
1787
1788
1789                 if(m_is_local_player)
1790                 {
1791                         LocalPlayer *player = m_env->getLocalPlayer();
1792                         player->physics_override_speed = override_speed;
1793                         player->physics_override_jump = override_jump;
1794                         player->physics_override_gravity = override_gravity;
1795                         player->physics_override_sneak = sneak;
1796                         player->physics_override_sneak_glitch = sneak_glitch;
1797                         player->physics_override_new_move = new_move;
1798                 }
1799         } else if (cmd == AO_CMD_SET_ANIMATION) {
1800                 // TODO: change frames send as v2s32 value
1801                 v2f range = readV2F32(is);
1802                 if (!m_is_local_player) {
1803                         m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1804                         m_animation_speed = readF32(is);
1805                         m_animation_blend = readF32(is);
1806                         // these are sent inverted so we get true when the server sends nothing
1807                         m_animation_loop = !readU8(is);
1808                         updateAnimation();
1809                 } else {
1810                         LocalPlayer *player = m_env->getLocalPlayer();
1811                         if(player->last_animation == NO_ANIM)
1812                         {
1813                                 m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1814                                 m_animation_speed = readF32(is);
1815                                 m_animation_blend = readF32(is);
1816                                 // these are sent inverted so we get true when the server sends nothing
1817                                 m_animation_loop = !readU8(is);
1818                         }
1819                         // update animation only if local animations present
1820                         // and received animation is unknown (except idle animation)
1821                         bool is_known = false;
1822                         for (int i = 1;i<4;i++)
1823                         {
1824                                 if(m_animation_range.Y == player->local_animations[i].Y)
1825                                         is_known = true;
1826                         }
1827                         if(!is_known ||
1828                                         (player->local_animations[1].Y + player->local_animations[2].Y < 1))
1829                         {
1830                                         updateAnimation();
1831                         }
1832                         // FIXME: ^ This code is trash. It's also broken.
1833                 }
1834         } else if (cmd == AO_CMD_SET_ANIMATION_SPEED) {
1835                 m_animation_speed = readF32(is);
1836                 updateAnimationSpeed();
1837         } else if (cmd == AO_CMD_SET_BONE_POSITION) {
1838                 std::string bone = deSerializeString16(is);
1839                 v3f position = readV3F32(is);
1840                 v3f rotation = readV3F32(is);
1841                 m_bone_position[bone] = core::vector2d<v3f>(position, rotation);
1842
1843                 // updateBonePosition(); now called every step
1844         } else if (cmd == AO_CMD_ATTACH_TO) {
1845                 u16 parent_id = readS16(is);
1846                 std::string bone = deSerializeString16(is);
1847                 v3f position = readV3F32(is);
1848                 v3f rotation = readV3F32(is);
1849                 bool force_visible = readU8(is); // Returns false for EOF
1850
1851                 setAttachment(parent_id, bone, position, rotation, force_visible);
1852         } else if (cmd == AO_CMD_PUNCHED) {
1853                 u16 result_hp = readU16(is);
1854
1855                 // Use this instead of the send damage to not interfere with prediction
1856                 s32 damage = (s32)m_hp - (s32)result_hp;
1857
1858                 m_hp = result_hp;
1859
1860                 if (m_is_local_player)
1861                         m_env->getLocalPlayer()->hp = m_hp;
1862
1863                 if (damage > 0)
1864                 {
1865                         if (m_hp == 0)
1866                         {
1867                                 // TODO: Execute defined fast response
1868                                 // As there is no definition, make a smoke puff
1869                                 ClientSimpleObject *simple = createSmokePuff(
1870                                                 m_smgr, m_env, m_position,
1871                                                 v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1872                                 m_env->addSimpleObject(simple);
1873                         } else if (m_reset_textures_timer < 0 && !m_prop.damage_texture_modifier.empty()) {
1874                                 m_reset_textures_timer = 0.05;
1875                                 if(damage >= 2)
1876                                         m_reset_textures_timer += 0.05 * damage;
1877                                 // Cap damage overlay to 1 second
1878                                 m_reset_textures_timer = std::min(m_reset_textures_timer, 1.0f);
1879                                 updateTextures(m_current_texture_modifier + m_prop.damage_texture_modifier);
1880                         }
1881                 }
1882
1883                 if (m_hp == 0) {
1884                         // Same as 'Server::DiePlayer'
1885                         clearParentAttachment();
1886                         // Same as 'ObjectRef::l_remove'
1887                         if (!m_is_player)
1888                                 clearChildAttachments();
1889                 }
1890         } else if (cmd == AO_CMD_UPDATE_ARMOR_GROUPS) {
1891                 m_armor_groups.clear();
1892                 int armor_groups_size = readU16(is);
1893                 for(int i=0; i<armor_groups_size; i++)
1894                 {
1895                         std::string name = deSerializeString16(is);
1896                         int rating = readS16(is);
1897                         m_armor_groups[name] = rating;
1898                 }
1899         } else if (cmd == AO_CMD_SPAWN_INFANT) {
1900                 u16 child_id = readU16(is);
1901                 u8 type = readU8(is); // maybe this will be useful later
1902                 (void)type;
1903
1904                 addAttachmentChild(child_id);
1905         } else if (cmd == AO_CMD_OBSOLETE1) {
1906                 // Don't do anything and also don't log a warning
1907         } else {
1908                 warningstream << FUNCTION_NAME
1909                         << ": unknown command or outdated client \""
1910                         << +cmd << "\"" << std::endl;
1911         }
1912 }
1913
1914 /* \pre punchitem != NULL
1915  */
1916 bool GenericCAO::directReportPunch(v3f dir, const ItemStack *punchitem,
1917                 float time_from_last_punch)
1918 {
1919         assert(punchitem);      // pre-condition
1920         const ToolCapabilities *toolcap =
1921                         &punchitem->getToolCapabilities(m_client->idef());
1922         PunchDamageResult result = getPunchDamage(
1923                         m_armor_groups,
1924                         toolcap,
1925                         punchitem,
1926                         time_from_last_punch,
1927                         punchitem->wear);
1928
1929         if(result.did_punch && result.damage != 0)
1930         {
1931                 if(result.damage < m_hp)
1932                 {
1933                         m_hp -= result.damage;
1934                 } else {
1935                         m_hp = 0;
1936                         // TODO: Execute defined fast response
1937                         // As there is no definition, make a smoke puff
1938                         ClientSimpleObject *simple = createSmokePuff(
1939                                         m_smgr, m_env, m_position,
1940                                         v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1941                         m_env->addSimpleObject(simple);
1942                 }
1943                 if (m_reset_textures_timer < 0 && !m_prop.damage_texture_modifier.empty()) {
1944                         m_reset_textures_timer = 0.05;
1945                         if (result.damage >= 2)
1946                                 m_reset_textures_timer += 0.05 * result.damage;
1947                         // Cap damage overlay to 1 second
1948                         m_reset_textures_timer = std::min(m_reset_textures_timer, 1.0f);
1949                         updateTextures(m_current_texture_modifier + m_prop.damage_texture_modifier);
1950                 }
1951         }
1952
1953         return false;
1954 }
1955
1956 std::string GenericCAO::debugInfoText()
1957 {
1958         std::ostringstream os(std::ios::binary);
1959         os<<"GenericCAO hp="<<m_hp<<"\n";
1960         os<<"armor={";
1961         for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1962                         i != m_armor_groups.end(); ++i)
1963         {
1964                 os<<i->first<<"="<<i->second<<", ";
1965         }
1966         os<<"}";
1967         return os.str();
1968 }
1969
1970 void GenericCAO::updateMeshCulling()
1971 {
1972         if (!m_is_local_player)
1973                 return;
1974
1975         const bool hidden = m_client->getCamera()->getCameraMode() == CAMERA_MODE_FIRST;
1976
1977         scene::ISceneNode *node = getSceneNode();
1978
1979         if (!node)
1980                 return;
1981
1982         if (m_prop.visual == "upright_sprite") {
1983                 // upright sprite has no backface culling
1984                 node->setMaterialFlag(video::EMF_FRONT_FACE_CULLING, hidden);
1985                 return;
1986         }
1987
1988         if (hidden) {
1989                 // Hide the mesh by culling both front and
1990                 // back faces. Serious hackyness but it works for our
1991                 // purposes. This also preserves the skeletal armature.
1992                 node->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
1993                         true);
1994                 node->setMaterialFlag(video::EMF_FRONT_FACE_CULLING,
1995                         true);
1996         } else {
1997                 // Restore mesh visibility.
1998                 node->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
1999                         m_prop.backface_culling);
2000                 node->setMaterialFlag(video::EMF_FRONT_FACE_CULLING,
2001                         false);
2002         }
2003 }
2004
2005 // Prototype
2006 GenericCAO proto_GenericCAO(NULL, NULL);