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 <ITextSceneNode.h>
  24 #include <IMeshManipulator.h>
  25 #include <IAnimatedMeshSceneNode.h>
  26 #include "client/client.h"
  27 #include "client/renderingengine.h"
  28 #include "client/sound.h"
  29 #include "client/tile.h"
  30 #include "util/basic_macros.h"
  31 #include "util/numeric.h" // For IntervalLimiter & setPitchYawRoll
  32 #include "util/serialize.h"
  33 #include "camera.h" // CameraModes
  34 #include "collision.h"
  35 #include "content_cso.h"
  36 #include "environment.h"
  37 #include "itemdef.h"
  38 #include "localplayer.h"
  39 #include "map.h"
  40 #include "mesh.h"
  41 #include "nodedef.h"
  42 #include "serialization.h" // For decompressZlib
  43 #include "settings.h"
  44 #include "sound.h"
  45 #include "tool.h"
  46 #include "wieldmesh.h"
  47 #include <algorithm>
  48 #include <cmath>
  49 #include "client/shader.h"
  50 #include "client/minimap.h"
  51
  52 class Settings;
  53 struct ToolCapabilities;
  54
  55 std::unordered_map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
  56
  57 template<typename T>
  58 void SmoothTranslator<T>::init(T current)
  59 {
  60         val_old = current;
  61         val_current = current;
  62         val_target = current;
  63         anim_time = 0;
  64         anim_time_counter = 0;
  65         aim_is_end = true;
  66 }
  67
  68 template<typename T>
  69 void SmoothTranslator<T>::update(T new_target, bool is_end_position, float update_interval)
  70 {
  71         aim_is_end = is_end_position;
  72         val_old = val_current;
  73         val_target = new_target;
  74         if (update_interval > 0) {
  75                 anim_time = update_interval;
  76         } else {
  77                 if (anim_time < 0.001 || anim_time > 1.0)
  78                         anim_time = anim_time_counter;
  79                 else
  80                         anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
  81         }
  82         anim_time_counter = 0;
  83 }
  84
  85 template<typename T>
  86 void SmoothTranslator<T>::translate(f32 dtime)
  87 {
  88         anim_time_counter = anim_time_counter + dtime;
  89         T val_diff = val_target - val_old;
  90         f32 moveratio = 1.0;
  91         if (anim_time > 0.001)
  92                 moveratio = anim_time_counter / anim_time;
  93         f32 move_end = aim_is_end ? 1.0 : 1.5;
  94
  95         // Move a bit less than should, to avoid oscillation
  96         moveratio = std::min(moveratio * 0.8f, move_end);
  97         val_current = val_old + val_diff * moveratio;
  98 }
  99
 100 void SmoothTranslatorWrapped::translate(f32 dtime)
 101 {
 102         anim_time_counter = anim_time_counter + dtime;
 103         f32 val_diff = std::abs(val_target - val_old);
 104         if (val_diff > 180.f)
 105                 val_diff = 360.f - val_diff;
 106
 107         f32 moveratio = 1.0;
 108         if (anim_time > 0.001)
 109                 moveratio = anim_time_counter / anim_time;
 110         f32 move_end = aim_is_end ? 1.0 : 1.5;
 111
 112         // Move a bit less than should, to avoid oscillation
 113         moveratio = std::min(moveratio * 0.8f, move_end);
 114         wrappedApproachShortest(val_current, val_target,
 115                 val_diff * moveratio, 360.f);
 116 }
 117
 118 void SmoothTranslatorWrappedv3f::translate(f32 dtime)
 119 {
 120         anim_time_counter = anim_time_counter + dtime;
 121
 122         v3f val_diff_v3f;
 123         val_diff_v3f.X = std::abs(val_target.X - val_old.X);
 124         val_diff_v3f.Y = std::abs(val_target.Y - val_old.Y);
 125         val_diff_v3f.Z = std::abs(val_target.Z - val_old.Z);
 126
 127         if (val_diff_v3f.X > 180.f)
 128                 val_diff_v3f.X = 360.f - val_diff_v3f.X;
 129
 130         if (val_diff_v3f.Y > 180.f)
 131                 val_diff_v3f.Y = 360.f - val_diff_v3f.Y;
 132
 133         if (val_diff_v3f.Z > 180.f)
 134                 val_diff_v3f.Z = 360.f - val_diff_v3f.Z;
 135
 136         f32 moveratio = 1.0;
 137         if (anim_time > 0.001)
 138                 moveratio = anim_time_counter / anim_time;
 139         f32 move_end = aim_is_end ? 1.0 : 1.5;
 140
 141         // Move a bit less than should, to avoid oscillation
 142         moveratio = std::min(moveratio * 0.8f, move_end);
 143         wrappedApproachShortest(val_current.X, val_target.X,
 144                 val_diff_v3f.X * moveratio, 360.f);
 145
 146         wrappedApproachShortest(val_current.Y, val_target.Y,
 147                 val_diff_v3f.Y * moveratio, 360.f);
 148
 149         wrappedApproachShortest(val_current.Z, val_target.Z,
 150                 val_diff_v3f.Z * moveratio, 360.f);
 151 }
 152
 153 /*
 154         Other stuff
 155 */
 156
 157 static void setBillboardTextureMatrix(scene::IBillboardSceneNode *bill,
 158                 float txs, float tys, int col, int row)
 159 {
 160         video::SMaterial& material = bill->getMaterial(0);
 161         core::matrix4& matrix = material.getTextureMatrix(0);
 162         matrix.setTextureTranslate(txs*col, tys*row);
 163         matrix.setTextureScale(txs, tys);
 164 }
 165
 166 // Evaluate transform chain recursively; irrlicht does not do this for us
 167 static void updatePositionRecursive(scene::ISceneNode *node)
 168 {
 169         scene::ISceneNode *parent = node->getParent();
 170         if (parent)
 171                 updatePositionRecursive(parent);
 172         node->updateAbsolutePosition();
 173 }
 174
 175 /*
 176         TestCAO
 177 */
 178
 179 class TestCAO : public ClientActiveObject
 180 {
 181 public:
 182         TestCAO(Client *client, ClientEnvironment *env);
 183         virtual ~TestCAO() = default;
 184
 185         ActiveObjectType getType() const
 186         {
 187                 return ACTIVEOBJECT_TYPE_TEST;
 188         }
 189
 190         static ClientActiveObject* create(Client *client, ClientEnvironment *env);
 191
 192         void addToScene(ITextureSource *tsrc);
 193         void removeFromScene(bool permanent);
 194         void updateLight(u32 day_night_ratio);
 195         void updateNodePos();
 196
 197         void step(float dtime, ClientEnvironment *env);
 198
 199         void processMessage(const std::string &data);
 200
 201         bool getCollisionBox(aabb3f *toset) const { return false; }
 202 private:
 203         scene::IMeshSceneNode *m_node;
 204         v3f m_position;
 205 };
 206
 207 // Prototype
 208 TestCAO proto_TestCAO(NULL, NULL);
 209
 210 TestCAO::TestCAO(Client *client, ClientEnvironment *env):
 211         ClientActiveObject(0, client, env),
 212         m_node(NULL),
 213         m_position(v3f(0,10*BS,0))
 214 {
 215         ClientActiveObject::registerType(getType(), create);
 216 }
 217
 218 ClientActiveObject* TestCAO::create(Client *client, ClientEnvironment *env)
 219 {
 220         return new TestCAO(client, env);
 221 }
 222
 223 void TestCAO::addToScene(ITextureSource *tsrc)
 224 {
 225         if(m_node != NULL)
 226                 return;
 227
 228         //video::IVideoDriver* driver = smgr->getVideoDriver();
 229
 230         scene::SMesh *mesh = new scene::SMesh();
 231         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 232         video::SColor c(255,255,255,255);
 233         video::S3DVertex vertices[4] =
 234         {
 235                 video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 236                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 237                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 238                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
 239         };
 240         u16 indices[] = {0,1,2,2,3,0};
 241         buf->append(vertices, 4, indices, 6);
 242         // Set material
 243         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 244         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 245         buf->getMaterial().setTexture(0, tsrc->getTextureForMesh("rat.png"));
 246         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 247         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 248         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 249         // Add to mesh
 250         mesh->addMeshBuffer(buf);
 251         buf->drop();
 252         m_node = RenderingEngine::get_scene_manager()->addMeshSceneNode(mesh, NULL);
 253         mesh->drop();
 254         updateNodePos();
 255 }
 256
 257 void TestCAO::removeFromScene(bool permanent)
 258 {
 259         if (!m_node)
 260                 return;
 261
 262         m_node->remove();
 263         m_node = NULL;
 264 }
 265
 266 void TestCAO::updateLight(u32 day_night_ratio)
 267 {
 268 }
 269
 270 void TestCAO::updateNodePos()
 271 {
 272         if (!m_node)
 273                 return;
 274
 275         m_node->setPosition(m_position);
 276         //m_node->setRotation(v3f(0, 45, 0));
 277 }
 278
 279 void TestCAO::step(float dtime, ClientEnvironment *env)
 280 {
 281         if(m_node)
 282         {
 283                 v3f rot = m_node->getRotation();
 284                 //infostream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
 285                 rot.Y += dtime * 180;
 286                 m_node->setRotation(rot);
 287         }
 288 }
 289
 290 void TestCAO::processMessage(const std::string &data)
 291 {
 292         infostream<<"TestCAO: Got data: "<<data<<std::endl;
 293         std::istringstream is(data, std::ios::binary);
 294         u16 cmd;
 295         is>>cmd;
 296         if(cmd == 0)
 297         {
 298                 v3f newpos;
 299                 is>>newpos.X;
 300                 is>>newpos.Y;
 301                 is>>newpos.Z;
 302                 m_position = newpos;
 303                 updateNodePos();
 304         }
 305 }
 306
 307 /*
 308         GenericCAO
 309 */
 310
 311 #include "clientobject.h"
 312
 313 GenericCAO::GenericCAO(Client *client, ClientEnvironment *env):
 314                 ClientActiveObject(0, client, env)
 315 {
 316         if (client == NULL) {
 317                 ClientActiveObject::registerType(getType(), create);
 318         } else {
 319                 m_client = client;
 320         }
 321 }
 322
 323 bool GenericCAO::getCollisionBox(aabb3f *toset) const
 324 {
 325         if (m_prop.physical)
 326         {
 327                 //update collision box
 328                 toset->MinEdge = m_prop.collisionbox.MinEdge * BS;
 329                 toset->MaxEdge = m_prop.collisionbox.MaxEdge * BS;
 330
 331                 toset->MinEdge += m_position;
 332                 toset->MaxEdge += m_position;
 333
 334                 return true;
 335         }
 336
 337         return false;
 338 }
 339
 340 bool GenericCAO::collideWithObjects() const
 341 {
 342         return m_prop.collideWithObjects;
 343 }
 344
 345 void GenericCAO::initialize(const std::string &data)
 346 {
 347         infostream<<"GenericCAO: Got init data"<<std::endl;
 348         processInitData(data);
 349
 350         if (m_is_player) {
 351                 // Check if it's the current player
 352                 LocalPlayer *player = m_env->getLocalPlayer();
 353                 if (player && strcmp(player->getName(), m_name.c_str()) == 0) {
 354                         m_is_local_player = true;
 355                         m_is_visible = false;
 356                         player->setCAO(this);
 357
 358                         m_prop.show_on_minimap = false;
 359                 }
 360         }
 361
 362         m_enable_shaders = g_settings->getBool("enable_shaders");
 363 }
 364
 365 void GenericCAO::processInitData(const std::string &data)
 366 {
 367         std::istringstream is(data, std::ios::binary);
 368         const u8 version = readU8(is);
 369
 370         if (version < 1) {
 371                 errorstream << "GenericCAO: Unsupported init data version"
 372                                 << std::endl;
 373                 return;
 374         }
 375
 376         // PROTOCOL_VERSION >= 37
 377         m_name = deSerializeString16(is);
 378         m_is_player = readU8(is);
 379         m_id = readU16(is);
 380         m_position = readV3F32(is);
 381         m_rotation = readV3F32(is);
 382         m_hp = readU16(is);
 383
 384         const u8 num_messages = readU8(is);
 385
 386         for (int i = 0; i < num_messages; i++) {
 387                 std::string message = deSerializeString32(is);
 388                 processMessage(message);
 389         }
 390
 391         m_rotation = wrapDegrees_0_360_v3f(m_rotation);
 392         pos_translator.init(m_position);
 393         rot_translator.init(m_rotation);
 394         updateNodePos();
 395 }
 396
 397 GenericCAO::~GenericCAO()
 398 {
 399         removeFromScene(true);
 400 }
 401
 402 bool GenericCAO::getSelectionBox(aabb3f *toset) const
 403 {
 404         if (!m_prop.is_visible || !m_is_visible || m_is_local_player
 405                         || !m_prop.pointable) {
 406                 return false;
 407         }
 408         *toset = m_selection_box;
 409         return true;
 410 }
 411
 412 const v3f GenericCAO::getPosition() const
 413 {
 414         if (!getParent())
 415                 return pos_translator.val_current;
 416
 417         // Calculate real position in world based on MatrixNode
 418         if (m_matrixnode) {
 419                 v3s16 camera_offset = m_env->getCameraOffset();
 420                 return m_matrixnode->getAbsolutePosition() +
 421                                 intToFloat(camera_offset, BS);
 422         }
 423
 424         return m_position;
 425 }
 426
 427 const bool GenericCAO::isImmortal()
 428 {
 429         return itemgroup_get(getGroups(), "immortal");
 430 }
 431
 432 scene::ISceneNode *GenericCAO::getSceneNode() const
 433 {
 434         if (m_meshnode) {
 435                 return m_meshnode;
 436         }
 437
 438         if (m_animated_meshnode) {
 439                 return m_animated_meshnode;
 440         }
 441
 442         if (m_wield_meshnode) {
 443                 return m_wield_meshnode;
 444         }
 445
 446         if (m_spritenode) {
 447                 return m_spritenode;
 448         }
 449         return NULL;
 450 }
 451
 452 scene::IAnimatedMeshSceneNode *GenericCAO::getAnimatedMeshSceneNode() const
 453 {
 454         return m_animated_meshnode;
 455 }
 456
 457 void GenericCAO::setChildrenVisible(bool toset)
 458 {
 459         for (u16 cao_id : m_attachment_child_ids) {
 460                 GenericCAO *obj = m_env->getGenericCAO(cao_id);
 461                 if (obj) {
 462                         // Check if the entity is forced to appear in first person.
 463                         obj->setVisible(obj->m_force_visible ? true : toset);
 464                 }
 465         }
 466 }
 467
 468 void GenericCAO::setAttachment(int parent_id, const std::string &bone,
 469                 v3f position, v3f rotation, bool force_visible)
 470 {
 471         int old_parent = m_attachment_parent_id;
 472         m_attachment_parent_id = parent_id;
 473         m_attachment_bone = bone;
 474         m_attachment_position = position;
 475         m_attachment_rotation = rotation;
 476         m_force_visible = force_visible;
 477
 478         ClientActiveObject *parent = m_env->getActiveObject(parent_id);
 479
 480         if (parent_id != old_parent) {
 481                 if (auto *o = m_env->getActiveObject(old_parent))
 482                         o->removeAttachmentChild(m_id);
 483                 if (parent)
 484                         parent->addAttachmentChild(m_id);
 485         }
 486         updateAttachments();
 487
 488         // Forcibly show attachments if required by set_attach
 489         if (m_force_visible) {
 490                 m_is_visible = true;
 491         } else if (!m_is_local_player) {
 492                 // Objects attached to the local player should be hidden in first person
 493                 m_is_visible = !m_attached_to_local ||
 494                         m_client->getCamera()->getCameraMode() != CAMERA_MODE_FIRST;
 495                 m_force_visible = false;
 496         } else {
 497                 // Local players need to have this set,
 498                 // otherwise first person attachments fail.
 499                 m_is_visible = true;
 500         }
 501 }
 502
 503 void GenericCAO::getAttachment(int *parent_id, std::string *bone, v3f *position,
 504         v3f *rotation, bool *force_visible) const
 505 {
 506         *parent_id = m_attachment_parent_id;
 507         *bone = m_attachment_bone;
 508         *position = m_attachment_position;
 509         *rotation = m_attachment_rotation;
 510         *force_visible = m_force_visible;
 511 }
 512
 513 void GenericCAO::clearChildAttachments()
 514 {
 515         // Cannot use for-loop here: setAttachment() modifies 'm_attachment_child_ids'!
 516         while (!m_attachment_child_ids.empty()) {
 517                 int child_id = *m_attachment_child_ids.begin();
 518
 519                 if (ClientActiveObject *child = m_env->getActiveObject(child_id))
 520                         child->setAttachment(0, "", v3f(), v3f(), false);
 521
 522                 removeAttachmentChild(child_id);
 523         }
 524 }
 525
 526 void GenericCAO::clearParentAttachment()
 527 {
 528         if (m_attachment_parent_id)
 529                 setAttachment(0, "", m_attachment_position, m_attachment_rotation, false);
 530         else
 531                 setAttachment(0, "", v3f(), v3f(), false);
 532 }
 533
 534 void GenericCAO::addAttachmentChild(int child_id)
 535 {
 536         m_attachment_child_ids.insert(child_id);
 537 }
 538
 539 void GenericCAO::removeAttachmentChild(int child_id)
 540 {
 541         m_attachment_child_ids.erase(child_id);
 542 }
 543
 544 ClientActiveObject* GenericCAO::getParent() const
 545 {
 546         return m_attachment_parent_id ? m_env->getActiveObject(m_attachment_parent_id) :
 547                         nullptr;
 548 }
 549
 550 void GenericCAO::removeFromScene(bool permanent)
 551 {
 552         // Should be true when removing the object permanently
 553         // and false when refreshing (eg: updating visuals)
 554         if (m_env && permanent) {
 555                 // The client does not know whether this object does re-appear to
 556                 // a later time, thus do not clear child attachments.
 557
 558                 clearParentAttachment();
 559         }
 560
 561         if (m_meshnode) {
 562                 m_meshnode->remove();
 563                 m_meshnode->drop();
 564                 m_meshnode = nullptr;
 565         } else if (m_animated_meshnode) {
 566                 m_animated_meshnode->remove();
 567                 m_animated_meshnode->drop();
 568                 m_animated_meshnode = nullptr;
 569         } else if (m_wield_meshnode) {
 570                 m_wield_meshnode->remove();
 571                 m_wield_meshnode->drop();
 572                 m_wield_meshnode = nullptr;
 573         } else if (m_spritenode) {
 574                 m_spritenode->remove();
 575                 m_spritenode->drop();
 576                 m_spritenode = nullptr;
 577         }
 578
 579         if (m_matrixnode) {
 580                 m_matrixnode->remove();
 581                 m_matrixnode->drop();
 582                 m_matrixnode = nullptr;
 583         }
 584
 585         if (m_nametag) {
 586                 m_client->getCamera()->removeNametag(m_nametag);
 587                 m_nametag = nullptr;
 588         }
 589
 590         if (m_marker && m_client->getMinimap())
 591                 m_client->getMinimap()->removeMarker(&m_marker);
 592 }
 593
 594 void GenericCAO::addToScene(ITextureSource *tsrc)
 595 {
 596         m_smgr = RenderingEngine::get_scene_manager();
 597
 598         if (getSceneNode() != NULL) {
 599                 return;
 600         }
 601
 602         m_visuals_expired = false;
 603
 604         if (!m_prop.is_visible)
 605                 return;
 606
 607         infostream << "GenericCAO::addToScene(): " << m_prop.visual << std::endl;
 608
 609         if (m_enable_shaders) {
 610                 IShaderSource *shader_source = m_client->getShaderSource();
 611                 MaterialType material_type;
 612
 613                 if (m_prop.shaded && m_prop.glow == 0)
 614                         material_type = (m_prop.use_texture_alpha) ?
 615                                 TILE_MATERIAL_ALPHA : TILE_MATERIAL_BASIC;
 616                 else
 617                         material_type = (m_prop.use_texture_alpha) ?
 618                                 TILE_MATERIAL_PLAIN_ALPHA : TILE_MATERIAL_PLAIN;
 619
 620                 u32 shader_id = shader_source->getShader("object_shader", material_type, NDT_NORMAL);
 621                 m_material_type = shader_source->getShaderInfo(shader_id).material;
 622         } else {
 623                 m_material_type = (m_prop.use_texture_alpha) ?
 624                         video::EMT_TRANSPARENT_ALPHA_CHANNEL : video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 625         }
 626
 627         auto grabMatrixNode = [this] {
 628                 m_matrixnode = RenderingEngine::get_scene_manager()->
 629                                 addDummyTransformationSceneNode();
 630                 m_matrixnode->grab();
 631         };
 632
 633         auto setSceneNodeMaterial = [this] (scene::ISceneNode *node) {
 634                 node->setMaterialFlag(video::EMF_LIGHTING, false);
 635                 node->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 636                 node->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 637                 node->setMaterialType(m_material_type);
 638
 639                 if (m_enable_shaders) {
 640                         node->setMaterialFlag(video::EMF_GOURAUD_SHADING, false);
 641                         node->setMaterialFlag(video::EMF_NORMALIZE_NORMALS, true);
 642                 }
 643         };
 644
 645         if (m_prop.visual == "sprite") {
 646                 grabMatrixNode();
 647                 m_spritenode = RenderingEngine::get_scene_manager()->addBillboardSceneNode(
 648                                 m_matrixnode, v2f(1, 1), v3f(0,0,0), -1);
 649                 m_spritenode->grab();
 650                 m_spritenode->setMaterialTexture(0,
 651                                 tsrc->getTextureForMesh("unknown_node.png"));
 652
 653                 setSceneNodeMaterial(m_spritenode);
 654
 655                 m_spritenode->setSize(v2f(m_prop.visual_size.X,
 656                                 m_prop.visual_size.Y) * BS);
 657                 {
 658                         const float txs = 1.0 / 1;
 659                         const float tys = 1.0 / 1;
 660                         setBillboardTextureMatrix(m_spritenode,
 661                                         txs, tys, 0, 0);
 662                 }
 663         } else if (m_prop.visual == "upright_sprite") {
 664                 grabMatrixNode();
 665                 scene::SMesh *mesh = new scene::SMesh();
 666                 double dx = BS * m_prop.visual_size.X / 2;
 667                 double dy = BS * m_prop.visual_size.Y / 2;
 668                 video::SColor c(0xFFFFFFFF);
 669
 670                 { // Front
 671                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 672                         video::S3DVertex vertices[4] = {
 673                                 video::S3DVertex(-dx, -dy, 0, 0,0,1, c, 1,1),
 674                                 video::S3DVertex( dx, -dy, 0, 0,0,1, c, 0,1),
 675                                 video::S3DVertex( dx,  dy, 0, 0,0,1, c, 0,0),
 676                                 video::S3DVertex(-dx,  dy, 0, 0,0,1, c, 1,0),
 677                         };
 678                         if (m_is_player) {
 679                                 // Move minimal Y position to 0 (feet position)
 680                                 for (video::S3DVertex &vertex : vertices)
 681                                         vertex.Pos.Y += dy;
 682                         }
 683                         u16 indices[] = {0,1,2,2,3,0};
 684                         buf->append(vertices, 4, indices, 6);
 685                         // Set material
 686                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 687                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 688                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 689                         buf->getMaterial().MaterialType = m_material_type;
 690
 691                         if (m_enable_shaders) {
 692                                 buf->getMaterial().EmissiveColor = c;
 693                                 buf->getMaterial().setFlag(video::EMF_GOURAUD_SHADING, false);
 694                                 buf->getMaterial().setFlag(video::EMF_NORMALIZE_NORMALS, true);
 695                         }
 696
 697                         // Add to mesh
 698                         mesh->addMeshBuffer(buf);
 699                         buf->drop();
 700                 }
 701                 { // Back
 702                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 703                         video::S3DVertex vertices[4] = {
 704                                 video::S3DVertex( dx,-dy, 0, 0,0,-1, c, 1,1),
 705                                 video::S3DVertex(-dx,-dy, 0, 0,0,-1, c, 0,1),
 706                                 video::S3DVertex(-dx, dy, 0, 0,0,-1, c, 0,0),
 707                                 video::S3DVertex( dx, dy, 0, 0,0,-1, c, 1,0),
 708                         };
 709                         if (m_is_player) {
 710                                 // Move minimal Y position to 0 (feet position)
 711                                 for (video::S3DVertex &vertex : vertices)
 712                                         vertex.Pos.Y += dy;
 713                         }
 714                         u16 indices[] = {0,1,2,2,3,0};
 715                         buf->append(vertices, 4, indices, 6);
 716                         // Set material
 717                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 718                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 719                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 720                         buf->getMaterial().MaterialType = m_material_type;
 721
 722                         if (m_enable_shaders) {
 723                                 buf->getMaterial().EmissiveColor = c;
 724                                 buf->getMaterial().setFlag(video::EMF_GOURAUD_SHADING, false);
 725                                 buf->getMaterial().setFlag(video::EMF_NORMALIZE_NORMALS, true);
 726                         }
 727
 728                         // Add to mesh
 729                         mesh->addMeshBuffer(buf);
 730                         buf->drop();
 731                 }
 732                 m_meshnode = RenderingEngine::get_scene_manager()->
 733                         addMeshSceneNode(mesh, m_matrixnode);
 734                 m_meshnode->grab();
 735                 mesh->drop();
 736                 // Set it to use the materials of the meshbuffers directly.
 737                 // This is needed for changing the texture in the future
 738                 m_meshnode->setReadOnlyMaterials(true);
 739         } else if (m_prop.visual == "cube") {
 740                 grabMatrixNode();
 741                 scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 742                 m_meshnode = RenderingEngine::get_scene_manager()->
 743                         addMeshSceneNode(mesh, m_matrixnode);
 744                 m_meshnode->grab();
 745                 mesh->drop();
 746
 747                 m_meshnode->setScale(m_prop.visual_size);
 748                 m_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
 749                         m_prop.backface_culling);
 750
 751                 setSceneNodeMaterial(m_meshnode);
 752         } else if (m_prop.visual == "mesh") {
 753                 grabMatrixNode();
 754                 scene::IAnimatedMesh *mesh = m_client->getMesh(m_prop.mesh, true);
 755                 if (mesh) {
 756                         m_animated_meshnode = RenderingEngine::get_scene_manager()->
 757                                 addAnimatedMeshSceneNode(mesh, m_matrixnode);
 758                         m_animated_meshnode->grab();
 759                         mesh->drop(); // The scene node took hold of it
 760
 761                         if (!checkMeshNormals(mesh)) {
 762                                 infostream << "GenericCAO: recalculating normals for mesh "
 763                                         << m_prop.mesh << std::endl;
 764                                 m_smgr->getMeshManipulator()->
 765                                                 recalculateNormals(mesh, true, false);
 766                         }
 767
 768                         m_animated_meshnode->animateJoints(); // Needed for some animations
 769                         m_animated_meshnode->setScale(m_prop.visual_size);
 770
 771                         // set vertex colors to ensure alpha is set
 772                         setMeshColor(m_animated_meshnode->getMesh(), video::SColor(0xFFFFFFFF));
 773
 774                         setAnimatedMeshColor(m_animated_meshnode, video::SColor(0xFFFFFFFF));
 775
 776                         setSceneNodeMaterial(m_animated_meshnode);
 777
 778                         m_animated_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
 779                                 m_prop.backface_culling);
 780                 } else
 781                         errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;
 782         } else if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 783                 grabMatrixNode();
 784                 ItemStack item;
 785                 if (m_prop.wield_item.empty()) {
 786                         // Old format, only textures are specified.
 787                         infostream << "textures: " << m_prop.textures.size() << std::endl;
 788                         if (!m_prop.textures.empty()) {
 789                                 infostream << "textures[0]: " << m_prop.textures[0]
 790                                         << std::endl;
 791                                 IItemDefManager *idef = m_client->idef();
 792                                 item = ItemStack(m_prop.textures[0], 1, 0, idef);
 793                         }
 794                 } else {
 795                         infostream << "serialized form: " << m_prop.wield_item << std::endl;
 796                         item.deSerialize(m_prop.wield_item, m_client->idef());
 797                 }
 798                 m_wield_meshnode = new WieldMeshSceneNode(
 799                         RenderingEngine::get_scene_manager(), -1);
 800                 m_wield_meshnode->setItem(item, m_client,
 801                         (m_prop.visual == "wielditem"));
 802
 803                 m_wield_meshnode->setScale(m_prop.visual_size / 2.0f);
 804                 m_wield_meshnode->setColor(video::SColor(0xFFFFFFFF));
 805         } else {
 806                 infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 807                                 <<"\" not supported"<<std::endl;
 808         }
 809
 810         /* don't update while punch texture modifier is active */
 811         if (m_reset_textures_timer < 0)
 812                 updateTextures(m_current_texture_modifier);
 813
 814         scene::ISceneNode *node = getSceneNode();
 815
 816         if (node && m_matrixnode)
 817                 node->setParent(m_matrixnode);
 818
 819         updateNametag();
 820         updateMarker();
 821         updateNodePos();
 822         updateAnimation();
 823         updateBonePosition();
 824         updateAttachments();
 825         setNodeLight(m_last_light);
 826         updateMeshCulling();
 827 }
 828
 829 void GenericCAO::updateLight(u32 day_night_ratio)
 830 {
 831         if (m_glow < 0)
 832                 return;
 833
 834         u8 light_at_pos = 0;
 835         bool pos_ok = false;
 836
 837         v3s16 pos[3];
 838         u16 npos = getLightPosition(pos);
 839         for (u16 i = 0; i < npos; i++) {
 840                 bool this_ok;
 841                 MapNode n = m_env->getMap().getNode(pos[i], &this_ok);
 842                 if (this_ok) {
 843                         u8 this_light = n.getLightBlend(day_night_ratio, m_client->ndef());
 844                         light_at_pos = MYMAX(light_at_pos, this_light);
 845                         pos_ok = true;
 846                 }
 847         }
 848         if (!pos_ok)
 849                 light_at_pos = blend_light(day_night_ratio, LIGHT_SUN, 0);
 850
 851         u8 light = decode_light(light_at_pos + m_glow);
 852         if (light != m_last_light) {
 853                 m_last_light = light;
 854                 setNodeLight(light);
 855         }
 856 }
 857
 858 void GenericCAO::setNodeLight(u8 light)
 859 {
 860         video::SColor color(255, light, light, light);
 861
 862         if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 863                 if (m_wield_meshnode)
 864                         m_wield_meshnode->setNodeLightColor(color);
 865                 return;
 866         }
 867
 868         if (m_enable_shaders) {
 869                 if (m_prop.visual == "upright_sprite") {
 870                         if (!m_meshnode)
 871                                 return;
 872
 873                         scene::IMesh *mesh = m_meshnode->getMesh();
 874                         for (u32 i = 0; i < mesh->getMeshBufferCount(); ++i) {
 875                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
 876                                 buf->getMaterial().EmissiveColor = color;
 877                         }
 878                 } else {
 879                         scene::ISceneNode *node = getSceneNode();
 880                         if (!node)
 881                                 return;
 882
 883                         for (u32 i = 0; i < node->getMaterialCount(); ++i) {
 884                                 video::SMaterial &material = node->getMaterial(i);
 885                                 material.EmissiveColor = color;
 886                         }
 887                 }
 888         } else {
 889                 if (m_meshnode) {
 890                         setMeshColor(m_meshnode->getMesh(), color);
 891                 } else if (m_animated_meshnode) {
 892                         setAnimatedMeshColor(m_animated_meshnode, color);
 893                 } else if (m_spritenode) {
 894                         m_spritenode->setColor(color);
 895                 }
 896         }
 897 }
 898
 899 u16 GenericCAO::getLightPosition(v3s16 *pos)
 900 {
 901         const auto &box = m_prop.collisionbox;
 902         pos[0] = floatToInt(m_position + box.MinEdge * BS, BS);
 903         pos[1] = floatToInt(m_position + box.MaxEdge * BS, BS);
 904
 905         // Skip center pos if it falls into the same node as Min or MaxEdge
 906         if ((box.MaxEdge - box.MinEdge).getLengthSQ() < 3.0f)
 907                 return 2;
 908         pos[2] = floatToInt(m_position + box.getCenter() * BS, BS);
 909         return 3;
 910 }
 911
 912 void GenericCAO::updateMarker()
 913 {
 914         if (!m_client->getMinimap())
 915                 return;
 916
 917         if (!m_prop.show_on_minimap) {
 918                 if (m_marker)
 919                         m_client->getMinimap()->removeMarker(&m_marker);
 920                 return;
 921         }
 922
 923         if (m_marker)
 924                 return;
 925
 926         scene::ISceneNode *node = getSceneNode();
 927         if (!node)
 928                 return;
 929         m_marker = m_client->getMinimap()->addMarker(node);
 930 }
 931
 932 void GenericCAO::updateNametag()
 933 {
 934         if (m_is_local_player) // No nametag for local player
 935                 return;
 936
 937         if (m_prop.nametag.empty()) {
 938                 // Delete nametag
 939                 if (m_nametag) {
 940                         m_client->getCamera()->removeNametag(m_nametag);
 941                         m_nametag = nullptr;
 942                 }
 943                 return;
 944         }
 945
 946         scene::ISceneNode *node = getSceneNode();
 947         if (!node)
 948                 return;
 949
 950         v3f pos;
 951         pos.Y = m_prop.selectionbox.MaxEdge.Y + 0.3f;
 952         if (!m_nametag) {
 953                 // Add nametag
 954                 m_nametag = m_client->getCamera()->addNametag(node,
 955                         m_prop.nametag, m_prop.nametag_color, pos);
 956         } else {
 957                 // Update nametag
 958                 m_nametag->nametag_text = m_prop.nametag;
 959                 m_nametag->nametag_color = m_prop.nametag_color;
 960                 m_nametag->nametag_pos = pos;
 961         }
 962 }
 963
 964 void GenericCAO::updateNodePos()
 965 {
 966         if (getParent() != NULL)
 967                 return;
 968
 969         scene::ISceneNode *node = getSceneNode();
 970
 971         if (node) {
 972                 v3s16 camera_offset = m_env->getCameraOffset();
 973                 v3f pos = pos_translator.val_current -
 974                                 intToFloat(camera_offset, BS);
 975                 getPosRotMatrix().setTranslation(pos);
 976                 if (node != m_spritenode) { // rotate if not a sprite
 977                         v3f rot = m_is_local_player ? -m_rotation : -rot_translator.val_current;
 978                         setPitchYawRoll(getPosRotMatrix(), rot);
 979                 }
 980         }
 981 }
 982
 983 void GenericCAO::step(float dtime, ClientEnvironment *env)
 984 {
 985         // Handle model animations and update positions instantly to prevent lags
 986         if (m_is_local_player) {
 987                 LocalPlayer *player = m_env->getLocalPlayer();
 988                 m_position = player->getPosition();
 989                 pos_translator.val_current = m_position;
 990                 m_rotation.Y = wrapDegrees_0_360(player->getYaw());
 991                 rot_translator.val_current = m_rotation;
 992
 993                 if (m_is_visible) {
 994                         int old_anim = player->last_animation;
 995                         float old_anim_speed = player->last_animation_speed;
 996                         m_velocity = v3f(0,0,0);
 997                         m_acceleration = v3f(0,0,0);
 998                         const PlayerControl &controls = player->getPlayerControl();
 999
1000                         bool walking = false;
1001                         if (controls.up || controls.down || controls.left || controls.right ||
1002                                         controls.forw_move_joystick_axis != 0.f ||
1003                                         controls.sidew_move_joystick_axis != 0.f)
1004                                 walking = true;
1005
1006                         f32 new_speed = player->local_animation_speed;
1007                         v2s32 new_anim = v2s32(0,0);
1008                         bool allow_update = false;
1009
1010                         // increase speed if using fast or flying fast
1011                         if((g_settings->getBool("fast_move") &&
1012                                         m_client->checkLocalPrivilege("fast")) &&
1013                                         (controls.aux1 ||
1014                                         (!player->touching_ground &&
1015                                         g_settings->getBool("free_move") &&
1016                                         m_client->checkLocalPrivilege("fly"))))
1017                                         new_speed *= 1.5;
1018                         // slowdown speed if sneeking
1019                         if (controls.sneak && walking)
1020                                 new_speed /= 2;
1021
1022                         if (walking && (controls.dig || controls.place)) {
1023                                 new_anim = player->local_animations[3];
1024                                 player->last_animation = WD_ANIM;
1025                         } else if (walking) {
1026                                 new_anim = player->local_animations[1];
1027                                 player->last_animation = WALK_ANIM;
1028                         } else if (controls.dig || controls.place) {
1029                                 new_anim = player->local_animations[2];
1030                                 player->last_animation = DIG_ANIM;
1031                         }
1032
1033                         // Apply animations if input detected and not attached
1034                         // or set idle animation
1035                         if ((new_anim.X + new_anim.Y) > 0 && !getParent()) {
1036                                 allow_update = true;
1037                                 m_animation_range = new_anim;
1038                                 m_animation_speed = new_speed;
1039                                 player->last_animation_speed = m_animation_speed;
1040                         } else {
1041                                 player->last_animation = NO_ANIM;
1042
1043                                 if (old_anim != NO_ANIM) {
1044                                         m_animation_range = player->local_animations[0];
1045                                         updateAnimation();
1046                                 }
1047                         }
1048
1049                         // Update local player animations
1050                         if ((player->last_animation != old_anim ||
1051                                         m_animation_speed != old_anim_speed) &&
1052                                         player->last_animation != NO_ANIM && allow_update)
1053                                 updateAnimation();
1054
1055                 }
1056         }
1057
1058         if (m_visuals_expired && m_smgr) {
1059                 m_visuals_expired = false;
1060
1061                 // Attachments, part 1: All attached objects must be unparented first,
1062                 // or Irrlicht causes a segmentation fault
1063                 for (u16 cao_id : m_attachment_child_ids) {
1064                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
1065                         if (obj) {
1066                                 scene::ISceneNode *child_node = obj->getSceneNode();
1067                                 // The node's parent is always an IDummyTraformationSceneNode,
1068                                 // so we need to reparent that one instead.
1069                                 if (child_node)
1070                                         child_node->getParent()->setParent(m_smgr->getRootSceneNode());
1071                         }
1072                 }
1073
1074                 removeFromScene(false);
1075                 addToScene(m_client->tsrc());
1076
1077                 // Attachments, part 2: Now that the parent has been refreshed, put its attachments back
1078                 for (u16 cao_id : m_attachment_child_ids) {
1079                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
1080                         if (obj)
1081                                 obj->updateAttachments();
1082                 }
1083         }
1084
1085         // Make sure m_is_visible is always applied
1086         scene::ISceneNode *node = getSceneNode();
1087         if (node)
1088                 node->setVisible(m_is_visible);
1089
1090         if(getParent() != NULL) // Attachments should be glued to their parent by Irrlicht
1091         {
1092                 // Set these for later
1093                 m_position = getPosition();
1094                 m_velocity = v3f(0,0,0);
1095                 m_acceleration = v3f(0,0,0);
1096                 pos_translator.val_current = m_position;
1097                 pos_translator.val_target = m_position;
1098         } else {
1099                 rot_translator.translate(dtime);
1100                 v3f lastpos = pos_translator.val_current;
1101
1102                 if(m_prop.physical)
1103                 {
1104                         aabb3f box = m_prop.collisionbox;
1105                         box.MinEdge *= BS;
1106                         box.MaxEdge *= BS;
1107                         collisionMoveResult moveresult;
1108                         f32 pos_max_d = BS*0.125; // Distance per iteration
1109                         v3f p_pos = m_position;
1110                         v3f p_velocity = m_velocity;
1111                         moveresult = collisionMoveSimple(env,env->getGameDef(),
1112                                         pos_max_d, box, m_prop.stepheight, dtime,
1113                                         &p_pos, &p_velocity, m_acceleration,
1114                                         this, m_prop.collideWithObjects);
1115                         // Apply results
1116                         m_position = p_pos;
1117                         m_velocity = p_velocity;
1118
1119                         bool is_end_position = moveresult.collides;
1120                         pos_translator.update(m_position, is_end_position, dtime);
1121                 } else {
1122                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
1123                         m_velocity += dtime * m_acceleration;
1124                         pos_translator.update(m_position, pos_translator.aim_is_end,
1125                                         pos_translator.anim_time);
1126                 }
1127                 pos_translator.translate(dtime);
1128                 updateNodePos();
1129
1130                 float moved = lastpos.getDistanceFrom(pos_translator.val_current);
1131                 m_step_distance_counter += moved;
1132                 if (m_step_distance_counter > 1.5f * BS) {
1133                         m_step_distance_counter = 0.0f;
1134                         if (!m_is_local_player && m_prop.makes_footstep_sound) {
1135                                 const NodeDefManager *ndef = m_client->ndef();
1136                                 v3s16 p = floatToInt(getPosition() +
1137                                         v3f(0.0f, (m_prop.collisionbox.MinEdge.Y - 0.5f) * BS, 0.0f), BS);
1138                                 MapNode n = m_env->getMap().getNode(p);
1139                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
1140                                 // Reduce footstep gain, as non-local-player footsteps are
1141                                 // somehow louder.
1142                                 spec.gain *= 0.6f;
1143                                 m_client->sound()->playSoundAt(spec, false, getPosition());
1144                         }
1145                 }
1146         }
1147
1148         m_anim_timer += dtime;
1149         if(m_anim_timer >= m_anim_framelength)
1150         {
1151                 m_anim_timer -= m_anim_framelength;
1152                 m_anim_frame++;
1153                 if(m_anim_frame >= m_anim_num_frames)
1154                         m_anim_frame = 0;
1155         }
1156
1157         updateTexturePos();
1158
1159         if(m_reset_textures_timer >= 0)
1160         {
1161                 m_reset_textures_timer -= dtime;
1162                 if(m_reset_textures_timer <= 0) {
1163                         m_reset_textures_timer = -1;
1164                         updateTextures(m_previous_texture_modifier);
1165                 }
1166         }
1167
1168         if (!getParent() && std::fabs(m_prop.automatic_rotate) > 0.001) {
1169                 // This is the child node's rotation. It is only used for automatic_rotate.
1170                 v3f local_rot = node->getRotation();
1171                 local_rot.Y = modulo360f(local_rot.Y - dtime * core::RADTODEG *
1172                                 m_prop.automatic_rotate);
1173                 node->setRotation(local_rot);
1174         }
1175
1176         if (!getParent() && m_prop.automatic_face_movement_dir &&
1177                         (fabs(m_velocity.Z) > 0.001 || fabs(m_velocity.X) > 0.001)) {
1178                 float target_yaw = atan2(m_velocity.Z, m_velocity.X) * 180 / M_PI
1179                                 + m_prop.automatic_face_movement_dir_offset;
1180                 float max_rotation_per_sec =
1181                                 m_prop.automatic_face_movement_max_rotation_per_sec;
1182
1183                 if (max_rotation_per_sec > 0) {
1184                         wrappedApproachShortest(m_rotation.Y, target_yaw,
1185                                 dtime * max_rotation_per_sec, 360.f);
1186                 } else {
1187                         // Negative values of max_rotation_per_sec mean disabled.
1188                         m_rotation.Y = target_yaw;
1189                 }
1190
1191                 rot_translator.val_current = m_rotation;
1192                 updateNodePos();
1193         }
1194
1195         if (m_animated_meshnode) {
1196                 // Everything must be updated; the whole transform
1197                 // chain as well as the animated mesh node.
1198                 // Otherwise, bone attachments would be relative to
1199                 // a position that's one frame old.
1200                 if (m_matrixnode)
1201                         updatePositionRecursive(m_matrixnode);
1202                 m_animated_meshnode->updateAbsolutePosition();
1203                 m_animated_meshnode->animateJoints();
1204                 updateBonePosition();
1205         }
1206 }
1207
1208 void GenericCAO::updateTexturePos()
1209 {
1210         if(m_spritenode)
1211         {
1212                 scene::ICameraSceneNode* camera =
1213                                 m_spritenode->getSceneManager()->getActiveCamera();
1214                 if(!camera)
1215                         return;
1216                 v3f cam_to_entity = m_spritenode->getAbsolutePosition()
1217                                 - camera->getAbsolutePosition();
1218                 cam_to_entity.normalize();
1219
1220                 int row = m_tx_basepos.Y;
1221                 int col = m_tx_basepos.X;
1222
1223                 // Yawpitch goes rightwards
1224                 if (m_tx_select_horiz_by_yawpitch) {
1225                         if (cam_to_entity.Y > 0.75)
1226                                 col += 5;
1227                         else if (cam_to_entity.Y < -0.75)
1228                                 col += 4;
1229                         else {
1230                                 float mob_dir =
1231                                                 atan2(cam_to_entity.Z, cam_to_entity.X) / M_PI * 180.;
1232                                 float dir = mob_dir - m_rotation.Y;
1233                                 dir = wrapDegrees_180(dir);
1234                                 if (std::fabs(wrapDegrees_180(dir - 0)) <= 45.1f)
1235                                         col += 2;
1236                                 else if(std::fabs(wrapDegrees_180(dir - 90)) <= 45.1f)
1237                                         col += 3;
1238                                 else if(std::fabs(wrapDegrees_180(dir - 180)) <= 45.1f)
1239                                         col += 0;
1240                                 else if(std::fabs(wrapDegrees_180(dir + 90)) <= 45.1f)
1241                                         col += 1;
1242                                 else
1243                                         col += 4;
1244                         }
1245                 }
1246
1247                 // Animation goes downwards
1248                 row += m_anim_frame;
1249
1250                 float txs = m_tx_size.X;
1251                 float tys = m_tx_size.Y;
1252                 setBillboardTextureMatrix(m_spritenode, txs, tys, col, row);
1253         }
1254
1255         else if (m_meshnode) {
1256                 if (m_prop.visual == "upright_sprite") {
1257                         int row = m_tx_basepos.Y;
1258                         int col = m_tx_basepos.X;
1259
1260                         // Animation goes downwards
1261                         row += m_anim_frame;
1262
1263                         const auto &tx = m_tx_size;
1264                         v2f t[4] = { // cf. vertices in GenericCAO::addToScene()
1265                                 tx * v2f(col+1, row+1),
1266                                 tx * v2f(col, row+1),
1267                                 tx * v2f(col, row),
1268                                 tx * v2f(col+1, row),
1269                         };
1270                         auto mesh = m_meshnode->getMesh();
1271                         setMeshBufferTextureCoords(mesh->getMeshBuffer(0), t, 4);
1272                         setMeshBufferTextureCoords(mesh->getMeshBuffer(1), t, 4);
1273                 }
1274         }
1275 }
1276
1277 // Do not pass by reference, see header.
1278 void GenericCAO::updateTextures(std::string mod)
1279 {
1280         ITextureSource *tsrc = m_client->tsrc();
1281
1282         bool use_trilinear_filter = g_settings->getBool("trilinear_filter");
1283         bool use_bilinear_filter = g_settings->getBool("bilinear_filter");
1284         bool use_anisotropic_filter = g_settings->getBool("anisotropic_filter");
1285
1286         m_previous_texture_modifier = m_current_texture_modifier;
1287         m_current_texture_modifier = mod;
1288         m_glow = m_prop.glow;
1289
1290         if (m_spritenode) {
1291                 if (m_prop.visual == "sprite") {
1292                         std::string texturestring = "unknown_node.png";
1293                         if (!m_prop.textures.empty())
1294                                 texturestring = m_prop.textures[0];
1295                         texturestring += mod;
1296                         m_spritenode->getMaterial(0).MaterialType = m_material_type;
1297                         m_spritenode->getMaterial(0).MaterialTypeParam = 0.5f;
1298                         m_spritenode->setMaterialTexture(0,
1299                                         tsrc->getTextureForMesh(texturestring));
1300
1301                         // This allows setting per-material colors. However, until a real lighting
1302                         // system is added, the code below will have no effect. Once MineTest
1303                         // has directional lighting, it should work automatically.
1304                         if (!m_prop.colors.empty()) {
1305                                 m_spritenode->getMaterial(0).AmbientColor = m_prop.colors[0];
1306                                 m_spritenode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1307                                 m_spritenode->getMaterial(0).SpecularColor = m_prop.colors[0];
1308                         }
1309
1310                         m_spritenode->getMaterial(0).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1311                         m_spritenode->getMaterial(0).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1312                         m_spritenode->getMaterial(0).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1313                 }
1314         }
1315
1316         else if (m_animated_meshnode) {
1317                 if (m_prop.visual == "mesh") {
1318                         for (u32 i = 0; i < m_prop.textures.size() &&
1319                                         i < m_animated_meshnode->getMaterialCount(); ++i) {
1320                                 std::string texturestring = m_prop.textures[i];
1321                                 if (texturestring.empty())
1322                                         continue; // Empty texture string means don't modify that material
1323                                 texturestring += mod;
1324                                 video::ITexture* texture = tsrc->getTextureForMesh(texturestring);
1325                                 if (!texture) {
1326                                         errorstream<<"GenericCAO::updateTextures(): Could not load texture "<<texturestring<<std::endl;
1327                                         continue;
1328                                 }
1329
1330                                 // Set material flags and texture
1331                                 video::SMaterial& material = m_animated_meshnode->getMaterial(i);
1332                                 material.MaterialType = m_material_type;
1333                                 material.MaterialTypeParam = 0.5f;
1334                                 material.TextureLayer[0].Texture = texture;
1335                                 material.setFlag(video::EMF_LIGHTING, true);
1336                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1337                                 material.setFlag(video::EMF_BACK_FACE_CULLING, m_prop.backface_culling);
1338
1339                                 // don't filter low-res textures, makes them look blurry
1340                                 // player models have a res of 64
1341                                 const core::dimension2d<u32> &size = texture->getOriginalSize();
1342                                 const u32 res = std::min(size.Height, size.Width);
1343                                 use_trilinear_filter &= res > 64;
1344                                 use_bilinear_filter &= res > 64;
1345
1346                                 m_animated_meshnode->getMaterial(i)
1347                                                 .setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1348                                 m_animated_meshnode->getMaterial(i)
1349                                                 .setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1350                                 m_animated_meshnode->getMaterial(i)
1351                                                 .setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1352                         }
1353                         for (u32 i = 0; i < m_prop.colors.size() &&
1354                         i < m_animated_meshnode->getMaterialCount(); ++i)
1355                         {
1356                                 // This allows setting per-material colors. However, until a real lighting
1357                                 // system is added, the code below will have no effect. Once MineTest
1358                                 // has directional lighting, it should work automatically.
1359                                 m_animated_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1360                                 m_animated_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1361                                 m_animated_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1362                         }
1363                 }
1364         }
1365
1366         else if (m_meshnode) {
1367                 if(m_prop.visual == "cube")
1368                 {
1369                         for (u32 i = 0; i < 6; ++i)
1370                         {
1371                                 std::string texturestring = "unknown_node.png";
1372                                 if(m_prop.textures.size() > i)
1373                                         texturestring = m_prop.textures[i];
1374                                 texturestring += mod;
1375
1376
1377                                 // Set material flags and texture
1378                                 video::SMaterial& material = m_meshnode->getMaterial(i);
1379                                 material.MaterialType = m_material_type;
1380                                 material.MaterialTypeParam = 0.5f;
1381                                 material.setFlag(video::EMF_LIGHTING, false);
1382                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1383                                 material.setTexture(0,
1384                                                 tsrc->getTextureForMesh(texturestring));
1385                                 material.getTextureMatrix(0).makeIdentity();
1386
1387                                 // This allows setting per-material colors. However, until a real lighting
1388                                 // system is added, the code below will have no effect. Once MineTest
1389                                 // has directional lighting, it should work automatically.
1390                                 if(m_prop.colors.size() > i)
1391                                 {
1392                                         m_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1393                                         m_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1394                                         m_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1395                                 }
1396
1397                                 m_meshnode->getMaterial(i).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1398                                 m_meshnode->getMaterial(i).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1399                                 m_meshnode->getMaterial(i).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1400                         }
1401                 } else if (m_prop.visual == "upright_sprite") {
1402                         scene::IMesh *mesh = m_meshnode->getMesh();
1403                         {
1404                                 std::string tname = "unknown_object.png";
1405                                 if (!m_prop.textures.empty())
1406                                         tname = m_prop.textures[0];
1407                                 tname += mod;
1408                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1409                                 buf->getMaterial().setTexture(0,
1410                                                 tsrc->getTextureForMesh(tname));
1411
1412                                 // This allows setting per-material colors. However, until a real lighting
1413                                 // system is added, the code below will have no effect. Once MineTest
1414                                 // has directional lighting, it should work automatically.
1415                                 if(!m_prop.colors.empty()) {
1416                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1417                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1418                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1419                                 }
1420
1421                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1422                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1423                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1424                         }
1425                         {
1426                                 std::string tname = "unknown_object.png";
1427                                 if (m_prop.textures.size() >= 2)
1428                                         tname = m_prop.textures[1];
1429                                 else if (!m_prop.textures.empty())
1430                                         tname = m_prop.textures[0];
1431                                 tname += mod;
1432                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1433                                 buf->getMaterial().setTexture(0,
1434                                                 tsrc->getTextureForMesh(tname));
1435
1436                                 // This allows setting per-material colors. However, until a real lighting
1437                                 // system is added, the code below will have no effect. Once MineTest
1438                                 // has directional lighting, it should work automatically.
1439                                 if (m_prop.colors.size() >= 2) {
1440                                         buf->getMaterial().AmbientColor = m_prop.colors[1];
1441                                         buf->getMaterial().DiffuseColor = m_prop.colors[1];
1442                                         buf->getMaterial().SpecularColor = m_prop.colors[1];
1443                                 } else if (!m_prop.colors.empty()) {
1444                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1445                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1446                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1447                                 }
1448
1449                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1450                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1451                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1452                         }
1453                         // Set mesh color (only if lighting is disabled)
1454                         if (!m_prop.colors.empty() && m_glow < 0)
1455                                 setMeshColor(mesh, m_prop.colors[0]);
1456                 }
1457         }
1458         // Prevent showing the player after changing texture
1459         if (m_is_local_player)
1460                 updateMeshCulling();
1461 }
1462
1463 void GenericCAO::updateAnimation()
1464 {
1465         if (!m_animated_meshnode)
1466                 return;
1467
1468         if (m_animated_meshnode->getStartFrame() != m_animation_range.X ||
1469                 m_animated_meshnode->getEndFrame() != m_animation_range.Y)
1470                         m_animated_meshnode->setFrameLoop(m_animation_range.X, m_animation_range.Y);
1471         if (m_animated_meshnode->getAnimationSpeed() != m_animation_speed)
1472                 m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1473         m_animated_meshnode->setTransitionTime(m_animation_blend);
1474 // Requires Irrlicht 1.8 or greater
1475 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR > 1
1476         if (m_animated_meshnode->getLoopMode() != m_animation_loop)
1477                 m_animated_meshnode->setLoopMode(m_animation_loop);
1478 #endif
1479 }
1480
1481 void GenericCAO::updateAnimationSpeed()
1482 {
1483         if (!m_animated_meshnode)
1484                 return;
1485
1486         m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1487 }
1488
1489 void GenericCAO::updateBonePosition()
1490 {
1491         if (m_bone_position.empty() || !m_animated_meshnode)
1492                 return;
1493
1494         m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
1495         for (auto &it : m_bone_position) {
1496                 std::string bone_name = it.first;
1497                 irr::scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
1498                 if (bone) {
1499                         bone->setPosition(it.second.X);
1500                         bone->setRotation(it.second.Y);
1501                 }
1502         }
1503
1504         // search through bones to find mistakenly rotated bones due to bug in Irrlicht
1505         for (u32 i = 0; i < m_animated_meshnode->getJointCount(); ++i) {
1506                 irr::scene::IBoneSceneNode *bone = m_animated_meshnode->getJointNode(i);
1507                 if (!bone)
1508                         continue;
1509
1510                 //If bone is manually positioned there is no need to perform the bug check
1511                 bool skip = false;
1512                 for (auto &it : m_bone_position) {
1513                         if (it.first == bone->getName()) {
1514                                 skip = true;
1515                                 break;
1516                         }
1517                 }
1518                 if (skip)
1519                         continue;
1520
1521                 // Workaround for Irrlicht bug
1522                 // We check each bone to see if it has been rotated ~180deg from its expected position due to a bug in Irricht
1523                 // when using EJUOR_CONTROL joint control. If the bug is detected we update the bone to the proper position
1524                 // and update the bones transformation.
1525                 v3f bone_rot = bone->getRelativeTransformation().getRotationDegrees();
1526                 float offset = fabsf(bone_rot.X - bone->getRotation().X);
1527                 if (offset > 179.9f && offset < 180.1f) {
1528                         bone->setRotation(bone_rot);
1529                         bone->updateAbsolutePosition();
1530                 }
1531         }
1532         // The following is needed for set_bone_pos to propagate to
1533         // attached objects correctly.
1534         // Irrlicht ought to do this, but doesn't when using EJUOR_CONTROL.
1535         for (u32 i = 0; i < m_animated_meshnode->getJointCount(); ++i) {
1536                 auto bone = m_animated_meshnode->getJointNode(i);
1537                 // Look for the root bone.
1538                 if (bone && bone->getParent() == m_animated_meshnode) {
1539                         // Update entire skeleton.
1540                         bone->updateAbsolutePositionOfAllChildren();
1541                         break;
1542                 }
1543         }
1544 }
1545
1546 void GenericCAO::updateAttachments()
1547 {
1548         ClientActiveObject *parent = getParent();
1549
1550         m_attached_to_local = parent && parent->isLocalPlayer();
1551
1552         /*
1553         Following cases exist:
1554                 m_attachment_parent_id == 0 && !parent
1555                         This object is not attached
1556                 m_attachment_parent_id != 0 && parent
1557                         This object is attached
1558                 m_attachment_parent_id != 0 && !parent
1559                         This object will be attached as soon the parent is known
1560                 m_attachment_parent_id == 0 && parent
1561                         Impossible case
1562         */
1563
1564         if (!parent) { // Detach or don't attach
1565                 if (m_matrixnode) {
1566                         v3s16 camera_offset = m_env->getCameraOffset();
1567                         v3f old_pos = getPosition();
1568
1569                         m_matrixnode->setParent(m_smgr->getRootSceneNode());
1570                         getPosRotMatrix().setTranslation(old_pos - intToFloat(camera_offset, BS));
1571                         m_matrixnode->updateAbsolutePosition();
1572                 }
1573         }
1574         else // Attach
1575         {
1576                 parent->updateAttachments();
1577                 scene::ISceneNode *parent_node = parent->getSceneNode();
1578                 scene::IAnimatedMeshSceneNode *parent_animated_mesh_node =
1579                                 parent->getAnimatedMeshSceneNode();
1580                 if (parent_animated_mesh_node && !m_attachment_bone.empty()) {
1581                         parent_node = parent_animated_mesh_node->getJointNode(m_attachment_bone.c_str());
1582                 }
1583
1584                 if (m_matrixnode && parent_node) {
1585                         m_matrixnode->setParent(parent_node);
1586                         parent_node->updateAbsolutePosition();
1587                         getPosRotMatrix().setTranslation(m_attachment_position);
1588                         //setPitchYawRoll(getPosRotMatrix(), m_attachment_rotation);
1589                         // use Irrlicht eulers instead
1590                         getPosRotMatrix().setRotationDegrees(m_attachment_rotation);
1591                         m_matrixnode->updateAbsolutePosition();
1592                 }
1593         }
1594 }
1595
1596 bool GenericCAO::visualExpiryRequired(const ObjectProperties &new_) const
1597 {
1598         const ObjectProperties &old = m_prop;
1599         /* Visuals do not need to be expired for:
1600          * - nametag props: handled by updateNametag()
1601          * - textures:      handled by updateTextures()
1602          * - sprite props:  handled by updateTexturePos()
1603          * - glow:          handled by updateLight()
1604          * - any other properties that do not change appearance
1605          */
1606
1607         bool uses_legacy_texture = new_.wield_item.empty() &&
1608                 (new_.visual == "wielditem" || new_.visual == "item");
1609         // Ordered to compare primitive types before std::vectors
1610         return old.backface_culling != new_.backface_culling ||
1611                 old.is_visible != new_.is_visible ||
1612                 old.mesh != new_.mesh ||
1613                 old.shaded != new_.shaded ||
1614                 old.use_texture_alpha != new_.use_texture_alpha ||
1615                 old.visual != new_.visual ||
1616                 old.visual_size != new_.visual_size ||
1617                 old.wield_item != new_.wield_item ||
1618                 old.colors != new_.colors ||
1619                 (uses_legacy_texture && old.textures != new_.textures);
1620 }
1621
1622 void GenericCAO::processMessage(const std::string &data)
1623 {
1624         //infostream<<"GenericCAO: Got message"<<std::endl;
1625         std::istringstream is(data, std::ios::binary);
1626         // command
1627         u8 cmd = readU8(is);
1628         if (cmd == AO_CMD_SET_PROPERTIES) {
1629                 ObjectProperties newprops;
1630                 newprops.show_on_minimap = m_is_player; // default
1631
1632                 newprops.deSerialize(is);
1633
1634                 // Check what exactly changed
1635                 bool expire_visuals = visualExpiryRequired(newprops);
1636                 bool textures_changed = m_prop.textures != newprops.textures;
1637
1638                 // Apply changes
1639                 m_prop = std::move(newprops);
1640
1641                 m_selection_box = m_prop.selectionbox;
1642                 m_selection_box.MinEdge *= BS;
1643                 m_selection_box.MaxEdge *= BS;
1644
1645                 m_tx_size.X = 1.0f / m_prop.spritediv.X;
1646                 m_tx_size.Y = 1.0f / m_prop.spritediv.Y;
1647
1648                 if(!m_initial_tx_basepos_set){
1649                         m_initial_tx_basepos_set = true;
1650                         m_tx_basepos = m_prop.initial_sprite_basepos;
1651                 }
1652                 if (m_is_local_player) {
1653                         LocalPlayer *player = m_env->getLocalPlayer();
1654                         player->makes_footstep_sound = m_prop.makes_footstep_sound;
1655                         aabb3f collision_box = m_prop.collisionbox;
1656                         collision_box.MinEdge *= BS;
1657                         collision_box.MaxEdge *= BS;
1658                         player->setCollisionbox(collision_box);
1659                         player->setEyeHeight(m_prop.eye_height);
1660                         player->setZoomFOV(m_prop.zoom_fov);
1661                 }
1662
1663                 if ((m_is_player && !m_is_local_player) && m_prop.nametag.empty())
1664                         m_prop.nametag = m_name;
1665                 if (m_is_local_player)
1666                         m_prop.show_on_minimap = false;
1667
1668                 if (expire_visuals) {
1669                         expireVisuals();
1670                 } else {
1671                         infostream << "GenericCAO: properties updated but expiring visuals"
1672                                 << " not necessary" << std::endl;
1673                         if (textures_changed) {
1674                                 // don't update while punch texture modifier is active
1675                                 if (m_reset_textures_timer < 0)
1676                                         updateTextures(m_current_texture_modifier);
1677                         }
1678                         updateNametag();
1679                         updateMarker();
1680                 }
1681         } else if (cmd == AO_CMD_UPDATE_POSITION) {
1682                 // Not sent by the server if this object is an attachment.
1683                 // We might however get here if the server notices the object being detached before the client.
1684                 m_position = readV3F32(is);
1685                 m_velocity = readV3F32(is);
1686                 m_acceleration = readV3F32(is);
1687                 m_rotation = readV3F32(is);
1688
1689                 m_rotation = wrapDegrees_0_360_v3f(m_rotation);
1690                 bool do_interpolate = readU8(is);
1691                 bool is_end_position = readU8(is);
1692                 float update_interval = readF32(is);
1693
1694                 // Place us a bit higher if we're physical, to not sink into
1695                 // the ground due to sucky collision detection...
1696                 if(m_prop.physical)
1697                         m_position += v3f(0,0.002,0);
1698
1699                 if(getParent() != NULL) // Just in case
1700                         return;
1701
1702                 if(do_interpolate)
1703                 {
1704                         if(!m_prop.physical)
1705                                 pos_translator.update(m_position, is_end_position, update_interval);
1706                 } else {
1707                         pos_translator.init(m_position);
1708                 }
1709                 rot_translator.update(m_rotation, false, update_interval);
1710                 updateNodePos();
1711         } else if (cmd == AO_CMD_SET_TEXTURE_MOD) {
1712                 std::string mod = deSerializeString16(is);
1713
1714                 // immediately reset a engine issued texture modifier if a mod sends a different one
1715                 if (m_reset_textures_timer > 0) {
1716                         m_reset_textures_timer = -1;
1717                         updateTextures(m_previous_texture_modifier);
1718                 }
1719                 updateTextures(mod);
1720         } else if (cmd == AO_CMD_SET_SPRITE) {
1721                 v2s16 p = readV2S16(is);
1722                 int num_frames = readU16(is);
1723                 float framelength = readF32(is);
1724                 bool select_horiz_by_yawpitch = readU8(is);
1725
1726                 m_tx_basepos = p;
1727                 m_anim_num_frames = num_frames;
1728                 m_anim_framelength = framelength;
1729                 m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1730
1731                 updateTexturePos();
1732         } else if (cmd == AO_CMD_SET_PHYSICS_OVERRIDE) {
1733                 float override_speed = readF32(is);
1734                 float override_jump = readF32(is);
1735                 float override_gravity = readF32(is);
1736                 // these are sent inverted so we get true when the server sends nothing
1737                 bool sneak = !readU8(is);
1738                 bool sneak_glitch = !readU8(is);
1739                 bool new_move = !readU8(is);
1740
1741
1742                 if(m_is_local_player)
1743                 {
1744                         LocalPlayer *player = m_env->getLocalPlayer();
1745                         player->physics_override_speed = override_speed;
1746                         player->physics_override_jump = override_jump;
1747                         player->physics_override_gravity = override_gravity;
1748                         player->physics_override_sneak = sneak;
1749                         player->physics_override_sneak_glitch = sneak_glitch;
1750                         player->physics_override_new_move = new_move;
1751                 }
1752         } else if (cmd == AO_CMD_SET_ANIMATION) {
1753                 // TODO: change frames send as v2s32 value
1754                 v2f range = readV2F32(is);
1755                 if (!m_is_local_player) {
1756                         m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1757                         m_animation_speed = readF32(is);
1758                         m_animation_blend = readF32(is);
1759                         // these are sent inverted so we get true when the server sends nothing
1760                         m_animation_loop = !readU8(is);
1761                         updateAnimation();
1762                 } else {
1763                         LocalPlayer *player = m_env->getLocalPlayer();
1764                         if(player->last_animation == NO_ANIM)
1765                         {
1766                                 m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1767                                 m_animation_speed = readF32(is);
1768                                 m_animation_blend = readF32(is);
1769                                 // these are sent inverted so we get true when the server sends nothing
1770                                 m_animation_loop = !readU8(is);
1771                         }
1772                         // update animation only if local animations present
1773                         // and received animation is unknown (except idle animation)
1774                         bool is_known = false;
1775                         for (int i = 1;i<4;i++)
1776                         {
1777                                 if(m_animation_range.Y == player->local_animations[i].Y)
1778                                         is_known = true;
1779                         }
1780                         if(!is_known ||
1781                                         (player->local_animations[1].Y + player->local_animations[2].Y < 1))
1782                         {
1783                                         updateAnimation();
1784                         }
1785                 }
1786         } else if (cmd == AO_CMD_SET_ANIMATION_SPEED) {
1787                 m_animation_speed = readF32(is);
1788                 updateAnimationSpeed();
1789         } else if (cmd == AO_CMD_SET_BONE_POSITION) {
1790                 std::string bone = deSerializeString16(is);
1791                 v3f position = readV3F32(is);
1792                 v3f rotation = readV3F32(is);
1793                 m_bone_position[bone] = core::vector2d<v3f>(position, rotation);
1794
1795                 // updateBonePosition(); now called every step
1796         } else if (cmd == AO_CMD_ATTACH_TO) {
1797                 u16 parent_id = readS16(is);
1798                 std::string bone = deSerializeString16(is);
1799                 v3f position = readV3F32(is);
1800                 v3f rotation = readV3F32(is);
1801                 bool force_visible = readU8(is); // Returns false for EOF
1802
1803                 setAttachment(parent_id, bone, position, rotation, force_visible);
1804         } else if (cmd == AO_CMD_PUNCHED) {
1805                 u16 result_hp = readU16(is);
1806
1807                 // Use this instead of the send damage to not interfere with prediction
1808                 s32 damage = (s32)m_hp - (s32)result_hp;
1809
1810                 m_hp = result_hp;
1811
1812                 if (m_is_local_player)
1813                         m_env->getLocalPlayer()->hp = m_hp;
1814
1815                 if (damage > 0)
1816                 {
1817                         if (m_hp == 0)
1818                         {
1819                                 // TODO: Execute defined fast response
1820                                 // As there is no definition, make a smoke puff
1821                                 ClientSimpleObject *simple = createSmokePuff(
1822                                                 m_smgr, m_env, m_position,
1823                                                 v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1824                                 m_env->addSimpleObject(simple);
1825                         } else if (m_reset_textures_timer < 0 && !m_prop.damage_texture_modifier.empty()) {
1826                                 m_reset_textures_timer = 0.05;
1827                                 if(damage >= 2)
1828                                         m_reset_textures_timer += 0.05 * damage;
1829                                 updateTextures(m_current_texture_modifier + m_prop.damage_texture_modifier);
1830                         }
1831                 }
1832
1833                 if (m_hp == 0) {
1834                         // Same as 'Server::DiePlayer'
1835                         clearParentAttachment();
1836                         // Same as 'ObjectRef::l_remove'
1837                         if (!m_is_player)
1838                                 clearChildAttachments();
1839                 }
1840         } else if (cmd == AO_CMD_UPDATE_ARMOR_GROUPS) {
1841                 m_armor_groups.clear();
1842                 int armor_groups_size = readU16(is);
1843                 for(int i=0; i<armor_groups_size; i++)
1844                 {
1845                         std::string name = deSerializeString16(is);
1846                         int rating = readS16(is);
1847                         m_armor_groups[name] = rating;
1848                 }
1849         } else if (cmd == AO_CMD_SPAWN_INFANT) {
1850                 u16 child_id = readU16(is);
1851                 u8 type = readU8(is); // maybe this will be useful later
1852                 (void)type;
1853
1854                 addAttachmentChild(child_id);
1855         } else if (cmd == AO_CMD_OBSOLETE1) {
1856                 // Don't do anything and also don't log a warning
1857         } else {
1858                 warningstream << FUNCTION_NAME
1859                         << ": unknown command or outdated client \""
1860                         << +cmd << "\"" << std::endl;
1861         }
1862 }
1863
1864 /* \pre punchitem != NULL
1865  */
1866 bool GenericCAO::directReportPunch(v3f dir, const ItemStack *punchitem,
1867                 float time_from_last_punch)
1868 {
1869         assert(punchitem);      // pre-condition
1870         const ToolCapabilities *toolcap =
1871                         &punchitem->getToolCapabilities(m_client->idef());
1872         PunchDamageResult result = getPunchDamage(
1873                         m_armor_groups,
1874                         toolcap,
1875                         punchitem,
1876                         time_from_last_punch);
1877
1878         if(result.did_punch && result.damage != 0)
1879         {
1880                 if(result.damage < m_hp)
1881                 {
1882                         m_hp -= result.damage;
1883                 } else {
1884                         m_hp = 0;
1885                         // TODO: Execute defined fast response
1886                         // As there is no definition, make a smoke puff
1887                         ClientSimpleObject *simple = createSmokePuff(
1888                                         m_smgr, m_env, m_position,
1889                                         v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1890                         m_env->addSimpleObject(simple);
1891                 }
1892                 if (m_reset_textures_timer < 0 && !m_prop.damage_texture_modifier.empty()) {
1893                         m_reset_textures_timer = 0.05;
1894                         if (result.damage >= 2)
1895                                 m_reset_textures_timer += 0.05 * result.damage;
1896                         updateTextures(m_current_texture_modifier + m_prop.damage_texture_modifier);
1897                 }
1898         }
1899
1900         return false;
1901 }
1902
1903 std::string GenericCAO::debugInfoText()
1904 {
1905         std::ostringstream os(std::ios::binary);
1906         os<<"GenericCAO hp="<<m_hp<<"\n";
1907         os<<"armor={";
1908         for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1909                         i != m_armor_groups.end(); ++i)
1910         {
1911                 os<<i->first<<"="<<i->second<<", ";
1912         }
1913         os<<"}";
1914         return os.str();
1915 }
1916
1917 void GenericCAO::updateMeshCulling()
1918 {
1919         if (!m_is_local_player)
1920                 return;
1921
1922         // Grab the active player scene node so we know there's
1923         // at least a mesh to occlude from the camera.
1924         irr::scene::ISceneNode *node = getSceneNode();
1925         if (!node)
1926                 return;
1927
1928         if (m_client->getCamera()->getCameraMode() == CAMERA_MODE_FIRST) {
1929                 // Hide the mesh by culling both front and
1930                 // back faces. Serious hackyness but it works for our
1931                 // purposes. This also preserves the skeletal armature.
1932                 node->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
1933                         true);
1934                 node->setMaterialFlag(video::EMF_FRONT_FACE_CULLING,
1935                         true);
1936         } else {
1937                 // Restore mesh visibility.
1938                 node->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
1939                         m_prop.backface_culling);
1940                 node->setMaterialFlag(video::EMF_FRONT_FACE_CULLING,
1941                         false);
1942         }
1943 }
1944
1945 // Prototype
1946 GenericCAO proto_GenericCAO(NULL, NULL);