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
  50 class Settings;
  51 struct ToolCapabilities;
  52
  53 std::unordered_map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
  54
  55 template<typename T>
  56 void SmoothTranslator<T>::init(T current)
  57 {
  58         val_old = current;
  59         val_current = current;
  60         val_target = current;
  61         anim_time = 0;
  62         anim_time_counter = 0;
  63         aim_is_end = true;
  64 }
  65
  66 template<typename T>
  67 void SmoothTranslator<T>::update(T new_target, bool is_end_position, float update_interval)
  68 {
  69         aim_is_end = is_end_position;
  70         val_old = val_current;
  71         val_target = new_target;
  72         if (update_interval > 0) {
  73                 anim_time = update_interval;
  74         } else {
  75                 if (anim_time < 0.001 || anim_time > 1.0)
  76                         anim_time = anim_time_counter;
  77                 else
  78                         anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
  79         }
  80         anim_time_counter = 0;
  81 }
  82
  83 template<typename T>
  84 void SmoothTranslator<T>::translate(f32 dtime)
  85 {
  86         anim_time_counter = anim_time_counter + dtime;
  87         T val_diff = val_target - val_old;
  88         f32 moveratio = 1.0;
  89         if (anim_time > 0.001)
  90                 moveratio = anim_time_counter / anim_time;
  91         f32 move_end = aim_is_end ? 1.0 : 1.5;
  92
  93         // Move a bit less than should, to avoid oscillation
  94         moveratio = std::min(moveratio * 0.8f, move_end);
  95         val_current = val_old + val_diff * moveratio;
  96 }
  97
  98 void SmoothTranslatorWrapped::translate(f32 dtime)
  99 {
 100         anim_time_counter = anim_time_counter + dtime;
 101         f32 val_diff = std::abs(val_target - val_old);
 102         if (val_diff > 180.f)
 103                 val_diff = 360.f - val_diff;
 104
 105         f32 moveratio = 1.0;
 106         if (anim_time > 0.001)
 107                 moveratio = anim_time_counter / anim_time;
 108         f32 move_end = aim_is_end ? 1.0 : 1.5;
 109
 110         // Move a bit less than should, to avoid oscillation
 111         moveratio = std::min(moveratio * 0.8f, move_end);
 112         wrappedApproachShortest(val_current, val_target,
 113                 val_diff * moveratio, 360.f);
 114 }
 115
 116 void SmoothTranslatorWrappedv3f::translate(f32 dtime)
 117 {
 118         anim_time_counter = anim_time_counter + dtime;
 119
 120         v3f val_diff_v3f;
 121         val_diff_v3f.X = std::abs(val_target.X - val_old.X);
 122         val_diff_v3f.Y = std::abs(val_target.Y - val_old.Y);
 123         val_diff_v3f.Z = std::abs(val_target.Z - val_old.Z);
 124
 125         if (val_diff_v3f.X > 180.f)
 126                 val_diff_v3f.X = 360.f - val_diff_v3f.X;
 127
 128         if (val_diff_v3f.Y > 180.f)
 129                 val_diff_v3f.Y = 360.f - val_diff_v3f.Y;
 130
 131         if (val_diff_v3f.Z > 180.f)
 132                 val_diff_v3f.Z = 360.f - val_diff_v3f.Z;
 133
 134         f32 moveratio = 1.0;
 135         if (anim_time > 0.001)
 136                 moveratio = anim_time_counter / anim_time;
 137         f32 move_end = aim_is_end ? 1.0 : 1.5;
 138
 139         // Move a bit less than should, to avoid oscillation
 140         moveratio = std::min(moveratio * 0.8f, move_end);
 141         wrappedApproachShortest(val_current.X, val_target.X,
 142                 val_diff_v3f.X * moveratio, 360.f);
 143
 144         wrappedApproachShortest(val_current.Y, val_target.Y,
 145                 val_diff_v3f.Y * moveratio, 360.f);
 146
 147         wrappedApproachShortest(val_current.Z, val_target.Z,
 148                 val_diff_v3f.Z * moveratio, 360.f);
 149 }
 150
 151 /*
 152         Other stuff
 153 */
 154
 155 static void setBillboardTextureMatrix(scene::IBillboardSceneNode *bill,
 156                 float txs, float tys, int col, int row)
 157 {
 158         video::SMaterial& material = bill->getMaterial(0);
 159         core::matrix4& matrix = material.getTextureMatrix(0);
 160         matrix.setTextureTranslate(txs*col, tys*row);
 161         matrix.setTextureScale(txs, tys);
 162 }
 163
 164 /*
 165         TestCAO
 166 */
 167
 168 class TestCAO : public ClientActiveObject
 169 {
 170 public:
 171         TestCAO(Client *client, ClientEnvironment *env);
 172         virtual ~TestCAO() = default;
 173
 174         ActiveObjectType getType() const
 175         {
 176                 return ACTIVEOBJECT_TYPE_TEST;
 177         }
 178
 179         static ClientActiveObject* create(Client *client, ClientEnvironment *env);
 180
 181         void addToScene(ITextureSource *tsrc);
 182         void removeFromScene(bool permanent);
 183         void updateLight(u8 light_at_pos);
 184         v3s16 getLightPosition();
 185         void updateNodePos();
 186
 187         void step(float dtime, ClientEnvironment *env);
 188
 189         void processMessage(const std::string &data);
 190
 191         bool getCollisionBox(aabb3f *toset) const { return false; }
 192 private:
 193         scene::IMeshSceneNode *m_node;
 194         v3f m_position;
 195 };
 196
 197 // Prototype
 198 TestCAO proto_TestCAO(NULL, NULL);
 199
 200 TestCAO::TestCAO(Client *client, ClientEnvironment *env):
 201         ClientActiveObject(0, client, env),
 202         m_node(NULL),
 203         m_position(v3f(0,10*BS,0))
 204 {
 205         ClientActiveObject::registerType(getType(), create);
 206 }
 207
 208 ClientActiveObject* TestCAO::create(Client *client, ClientEnvironment *env)
 209 {
 210         return new TestCAO(client, env);
 211 }
 212
 213 void TestCAO::addToScene(ITextureSource *tsrc)
 214 {
 215         if(m_node != NULL)
 216                 return;
 217
 218         //video::IVideoDriver* driver = smgr->getVideoDriver();
 219
 220         scene::SMesh *mesh = new scene::SMesh();
 221         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 222         video::SColor c(255,255,255,255);
 223         video::S3DVertex vertices[4] =
 224         {
 225                 video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 226                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 227                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 228                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
 229         };
 230         u16 indices[] = {0,1,2,2,3,0};
 231         buf->append(vertices, 4, indices, 6);
 232         // Set material
 233         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 234         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 235         buf->getMaterial().setTexture(0, tsrc->getTextureForMesh("rat.png"));
 236         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 237         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 238         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 239         // Add to mesh
 240         mesh->addMeshBuffer(buf);
 241         buf->drop();
 242         m_node = RenderingEngine::get_scene_manager()->addMeshSceneNode(mesh, NULL);
 243         mesh->drop();
 244         updateNodePos();
 245 }
 246
 247 void TestCAO::removeFromScene(bool permanent)
 248 {
 249         if (!m_node)
 250                 return;
 251
 252         m_node->remove();
 253         m_node = NULL;
 254 }
 255
 256 void TestCAO::updateLight(u8 light_at_pos)
 257 {
 258 }
 259
 260 v3s16 TestCAO::getLightPosition()
 261 {
 262         return floatToInt(m_position, BS);
 263 }
 264
 265 void TestCAO::updateNodePos()
 266 {
 267         if (!m_node)
 268                 return;
 269
 270         m_node->setPosition(m_position);
 271         //m_node->setRotation(v3f(0, 45, 0));
 272 }
 273
 274 void TestCAO::step(float dtime, ClientEnvironment *env)
 275 {
 276         if(m_node)
 277         {
 278                 v3f rot = m_node->getRotation();
 279                 //infostream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
 280                 rot.Y += dtime * 180;
 281                 m_node->setRotation(rot);
 282         }
 283 }
 284
 285 void TestCAO::processMessage(const std::string &data)
 286 {
 287         infostream<<"TestCAO: Got data: "<<data<<std::endl;
 288         std::istringstream is(data, std::ios::binary);
 289         u16 cmd;
 290         is>>cmd;
 291         if(cmd == 0)
 292         {
 293                 v3f newpos;
 294                 is>>newpos.X;
 295                 is>>newpos.Y;
 296                 is>>newpos.Z;
 297                 m_position = newpos;
 298                 updateNodePos();
 299         }
 300 }
 301
 302 /*
 303         GenericCAO
 304 */
 305
 306 #include "genericobject.h"
 307 #include "clientobject.h"
 308
 309 GenericCAO::GenericCAO(Client *client, ClientEnvironment *env):
 310                 ClientActiveObject(0, client, env)
 311 {
 312         if (client == NULL) {
 313                 ClientActiveObject::registerType(getType(), create);
 314         } else {
 315                 m_client = client;
 316         }
 317 }
 318
 319 bool GenericCAO::getCollisionBox(aabb3f *toset) const
 320 {
 321         if (m_prop.physical)
 322         {
 323                 //update collision box
 324                 toset->MinEdge = m_prop.collisionbox.MinEdge * BS;
 325                 toset->MaxEdge = m_prop.collisionbox.MaxEdge * BS;
 326
 327                 toset->MinEdge += m_position;
 328                 toset->MaxEdge += m_position;
 329
 330                 return true;
 331         }
 332
 333         return false;
 334 }
 335
 336 bool GenericCAO::collideWithObjects() const
 337 {
 338         return m_prop.collideWithObjects;
 339 }
 340
 341 void GenericCAO::initialize(const std::string &data)
 342 {
 343         infostream<<"GenericCAO: Got init data"<<std::endl;
 344         processInitData(data);
 345
 346         if (m_is_player) {
 347                 // Check if it's the current player
 348                 LocalPlayer *player = m_env->getLocalPlayer();
 349                 if (player && strcmp(player->getName(), m_name.c_str()) == 0) {
 350                         m_is_local_player = true;
 351                         m_is_visible = false;
 352                         player->setCAO(this);
 353                 }
 354         }
 355 }
 356
 357 void GenericCAO::processInitData(const std::string &data)
 358 {
 359         std::istringstream is(data, std::ios::binary);
 360         const u8 version = readU8(is);
 361
 362         if (version < 1) {
 363                 errorstream << "GenericCAO: Unsupported init data version"
 364                                 << std::endl;
 365                 return;
 366         }
 367
 368         // PROTOCOL_VERSION >= 37
 369         m_name = deSerializeString(is);
 370         m_is_player = readU8(is);
 371         m_id = readU16(is);
 372         m_position = readV3F32(is);
 373         m_rotation = readV3F32(is);
 374         m_hp = readU16(is);
 375
 376         const u8 num_messages = readU8(is);
 377
 378         for (int i = 0; i < num_messages; i++) {
 379                 std::string message = deSerializeLongString(is);
 380                 processMessage(message);
 381         }
 382
 383         m_rotation = wrapDegrees_0_360_v3f(m_rotation);
 384         pos_translator.init(m_position);
 385         rot_translator.init(m_rotation);
 386         updateNodePos();
 387 }
 388
 389 GenericCAO::~GenericCAO()
 390 {
 391         removeFromScene(true);
 392 }
 393
 394 bool GenericCAO::getSelectionBox(aabb3f *toset) const
 395 {
 396         if (!m_prop.is_visible || !m_is_visible || m_is_local_player
 397                         || !m_prop.pointable) {
 398                 return false;
 399         }
 400         *toset = m_selection_box;
 401         return true;
 402 }
 403
 404 const v3f GenericCAO::getPosition() const
 405 {
 406         if (getParent() != nullptr) {
 407                 if (m_matrixnode)
 408                         return m_matrixnode->getAbsolutePosition();
 409
 410                 return m_position;
 411         }
 412         return pos_translator.val_current;
 413 }
 414
 415 const bool GenericCAO::isImmortal()
 416 {
 417         return itemgroup_get(getGroups(), "immortal");
 418 }
 419
 420 scene::ISceneNode* GenericCAO::getSceneNode()
 421 {
 422         if (m_meshnode) {
 423                 return m_meshnode;
 424         }
 425
 426         if (m_animated_meshnode) {
 427                 return m_animated_meshnode;
 428         }
 429
 430         if (m_wield_meshnode) {
 431                 return m_wield_meshnode;
 432         }
 433
 434         if (m_spritenode) {
 435                 return m_spritenode;
 436         }
 437         return NULL;
 438 }
 439
 440 scene::IAnimatedMeshSceneNode* GenericCAO::getAnimatedMeshSceneNode()
 441 {
 442         return m_animated_meshnode;
 443 }
 444
 445 void GenericCAO::setChildrenVisible(bool toset)
 446 {
 447         for (u16 cao_id : m_attachment_child_ids) {
 448                 GenericCAO *obj = m_env->getGenericCAO(cao_id);
 449                 if (obj) {
 450                         obj->setVisible(toset);
 451                 }
 452         }
 453 }
 454
 455 void GenericCAO::setAttachment(int parent_id, const std::string &bone, v3f position, v3f rotation)
 456 {
 457         int old_parent = m_attachment_parent_id;
 458         m_attachment_parent_id = parent_id;
 459         m_attachment_bone = bone;
 460         m_attachment_position = position;
 461         m_attachment_rotation = rotation;
 462
 463         ClientActiveObject *parent = m_env->getActiveObject(parent_id);
 464
 465         if (parent_id != old_parent) {
 466                 if (auto *o = m_env->getActiveObject(old_parent))
 467                         o->removeAttachmentChild(m_id);
 468                 if (parent)
 469                         parent->addAttachmentChild(m_id);
 470         }
 471
 472         updateAttachments();
 473 }
 474
 475 void GenericCAO::getAttachment(int *parent_id, std::string *bone, v3f *position,
 476         v3f *rotation) const
 477 {
 478         *parent_id = m_attachment_parent_id;
 479         *bone = m_attachment_bone;
 480         *position = m_attachment_position;
 481         *rotation = m_attachment_rotation;
 482 }
 483
 484 void GenericCAO::clearChildAttachments()
 485 {
 486         // Cannot use for-loop here: setAttachment() modifies 'm_attachment_child_ids'!
 487         while (!m_attachment_child_ids.empty()) {
 488                 int child_id = *m_attachment_child_ids.begin();
 489
 490                 if (ClientActiveObject *child = m_env->getActiveObject(child_id))
 491                         child->setAttachment(0, "", v3f(), v3f());
 492
 493                 removeAttachmentChild(child_id);
 494         }
 495 }
 496
 497 void GenericCAO::clearParentAttachment()
 498 {
 499         if (m_attachment_parent_id)
 500                 setAttachment(0, "", m_attachment_position, m_attachment_rotation);
 501         else
 502                 setAttachment(0, "", v3f(), v3f());
 503 }
 504
 505 void GenericCAO::addAttachmentChild(int child_id)
 506 {
 507         m_attachment_child_ids.insert(child_id);
 508 }
 509
 510 void GenericCAO::removeAttachmentChild(int child_id)
 511 {
 512         m_attachment_child_ids.erase(child_id);
 513 }
 514
 515 ClientActiveObject* GenericCAO::getParent() const
 516 {
 517         return m_attachment_parent_id ? m_env->getActiveObject(m_attachment_parent_id) :
 518                         nullptr;
 519 }
 520
 521 void GenericCAO::removeFromScene(bool permanent)
 522 {
 523         // Should be true when removing the object permanently
 524         // and false when refreshing (eg: updating visuals)
 525         if (m_env && permanent) {
 526                 // The client does not know whether this object does re-appear to
 527                 // a later time, thus do not clear child attachments.
 528
 529                 clearParentAttachment();
 530         }
 531
 532         if (m_meshnode) {
 533                 m_meshnode->remove();
 534                 m_meshnode->drop();
 535                 m_meshnode = nullptr;
 536         } else if (m_animated_meshnode) {
 537                 m_animated_meshnode->remove();
 538                 m_animated_meshnode->drop();
 539                 m_animated_meshnode = nullptr;
 540         } else if (m_wield_meshnode) {
 541                 m_wield_meshnode->remove();
 542                 m_wield_meshnode->drop();
 543                 m_wield_meshnode = nullptr;
 544         } else if (m_spritenode) {
 545                 m_spritenode->remove();
 546                 m_spritenode->drop();
 547                 m_spritenode = nullptr;
 548         }
 549
 550         if (m_matrixnode) {
 551                 m_matrixnode->remove();
 552                 m_matrixnode->drop();
 553                 m_matrixnode = nullptr;
 554         }
 555
 556         if (m_nametag) {
 557                 m_client->getCamera()->removeNametag(m_nametag);
 558                 m_nametag = nullptr;
 559         }
 560 }
 561
 562 void GenericCAO::addToScene(ITextureSource *tsrc)
 563 {
 564         m_smgr = RenderingEngine::get_scene_manager();
 565
 566         if (getSceneNode() != NULL) {
 567                 return;
 568         }
 569
 570         m_visuals_expired = false;
 571
 572         if (!m_prop.is_visible) {
 573                 return;
 574         }
 575
 576         video::E_MATERIAL_TYPE material_type = (m_prop.use_texture_alpha) ?
 577                 video::EMT_TRANSPARENT_ALPHA_CHANNEL : video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 578
 579         if (m_prop.visual == "sprite") {
 580                 infostream<<"GenericCAO::addToScene(): single_sprite"<<std::endl;
 581                 m_matrixnode = RenderingEngine::get_scene_manager()->
 582                                 addDummyTransformationSceneNode();
 583                 m_matrixnode->grab();
 584                 m_spritenode = RenderingEngine::get_scene_manager()->addBillboardSceneNode(
 585                                 m_matrixnode, v2f(1, 1), v3f(0,0,0), -1);
 586                 m_spritenode->grab();
 587                 m_spritenode->setMaterialTexture(0,
 588                                 tsrc->getTextureForMesh("unknown_node.png"));
 589                 m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
 590                 m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 591                 m_spritenode->setMaterialType(material_type);
 592                 m_spritenode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 593                 u8 li = m_last_light;
 594                 m_spritenode->setColor(video::SColor(255,li,li,li));
 595                 m_spritenode->setSize(v2f(m_prop.visual_size.X,
 596                                 m_prop.visual_size.Y) * BS);
 597                 {
 598                         const float txs = 1.0 / 1;
 599                         const float tys = 1.0 / 1;
 600                         setBillboardTextureMatrix(m_spritenode,
 601                                         txs, tys, 0, 0);
 602                 }
 603         } else if (m_prop.visual == "upright_sprite") {
 604                 scene::SMesh *mesh = new scene::SMesh();
 605                 double dx = BS * m_prop.visual_size.X / 2;
 606                 double dy = BS * m_prop.visual_size.Y / 2;
 607                 u8 li = m_last_light;
 608                 video::SColor c(255, li, li, li);
 609
 610                 { // Front
 611                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 612                         video::S3DVertex vertices[4] = {
 613                                 video::S3DVertex(-dx, -dy, 0, 0,0,0, c, 1,1),
 614                                 video::S3DVertex( dx, -dy, 0, 0,0,0, c, 0,1),
 615                                 video::S3DVertex( dx,  dy, 0, 0,0,0, c, 0,0),
 616                                 video::S3DVertex(-dx,  dy, 0, 0,0,0, c, 1,0),
 617                         };
 618                         if (m_is_player) {
 619                                 // Move minimal Y position to 0 (feet position)
 620                                 for (video::S3DVertex &vertex : vertices)
 621                                         vertex.Pos.Y += dy;
 622                         }
 623                         u16 indices[] = {0,1,2,2,3,0};
 624                         buf->append(vertices, 4, indices, 6);
 625                         // Set material
 626                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 627                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 628                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 629                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 630                         // Add to mesh
 631                         mesh->addMeshBuffer(buf);
 632                         buf->drop();
 633                 }
 634                 { // Back
 635                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 636                         video::S3DVertex vertices[4] = {
 637                                 video::S3DVertex( dx,-dy, 0, 0,0,0, c, 1,1),
 638                                 video::S3DVertex(-dx,-dy, 0, 0,0,0, c, 0,1),
 639                                 video::S3DVertex(-dx, dy, 0, 0,0,0, c, 0,0),
 640                                 video::S3DVertex( dx, dy, 0, 0,0,0, c, 1,0),
 641                         };
 642                         if (m_is_player) {
 643                                 // Move minimal Y position to 0 (feet position)
 644                                 for (video::S3DVertex &vertex : vertices)
 645                                         vertex.Pos.Y += dy;
 646                         }
 647                         u16 indices[] = {0,1,2,2,3,0};
 648                         buf->append(vertices, 4, indices, 6);
 649                         // Set material
 650                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 651                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 652                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 653                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 654                         // Add to mesh
 655                         mesh->addMeshBuffer(buf);
 656                         buf->drop();
 657                 }
 658                 m_matrixnode = RenderingEngine::get_scene_manager()->
 659                         addDummyTransformationSceneNode();
 660                 m_matrixnode->grab();
 661                 m_meshnode = RenderingEngine::get_scene_manager()->
 662                         addMeshSceneNode(mesh, m_matrixnode);
 663                 m_meshnode->grab();
 664                 mesh->drop();
 665                 // Set it to use the materials of the meshbuffers directly.
 666                 // This is needed for changing the texture in the future
 667                 m_meshnode->setReadOnlyMaterials(true);
 668         } else if (m_prop.visual == "cube") {
 669                 infostream<<"GenericCAO::addToScene(): cube"<<std::endl;
 670                 scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 671                 m_matrixnode = RenderingEngine::get_scene_manager()->
 672                         addDummyTransformationSceneNode(nullptr);
 673                 m_matrixnode->grab();
 674                 m_meshnode = RenderingEngine::get_scene_manager()->
 675                         addMeshSceneNode(mesh, m_matrixnode);
 676                 m_meshnode->grab();
 677                 mesh->drop();
 678
 679                 m_meshnode->setScale(m_prop.visual_size);
 680                 u8 li = m_last_light;
 681                 setMeshColor(m_meshnode->getMesh(), video::SColor(255,li,li,li));
 682
 683                 m_meshnode->setMaterialFlag(video::EMF_LIGHTING, false);
 684                 m_meshnode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 685                 m_meshnode->setMaterialType(material_type);
 686                 m_meshnode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 687         } else if (m_prop.visual == "mesh") {
 688                 infostream<<"GenericCAO::addToScene(): mesh"<<std::endl;
 689                 scene::IAnimatedMesh *mesh = m_client->getMesh(m_prop.mesh, true);
 690                 if (mesh) {
 691                         m_matrixnode = RenderingEngine::get_scene_manager()->
 692                                 addDummyTransformationSceneNode(nullptr);
 693                         m_matrixnode->grab();
 694                         m_animated_meshnode = RenderingEngine::get_scene_manager()->
 695                                 addAnimatedMeshSceneNode(mesh, m_matrixnode);
 696                         m_animated_meshnode->grab();
 697                         mesh->drop(); // The scene node took hold of it
 698                         m_animated_meshnode->animateJoints(); // Needed for some animations
 699                         m_animated_meshnode->setScale(m_prop.visual_size);
 700                         u8 li = m_last_light;
 701
 702                         // set vertex colors to ensure alpha is set
 703                         setMeshColor(m_animated_meshnode->getMesh(), video::SColor(255,li,li,li));
 704
 705                         setAnimatedMeshColor(m_animated_meshnode, video::SColor(255,li,li,li));
 706
 707                         m_animated_meshnode->setMaterialFlag(video::EMF_LIGHTING, true);
 708                         m_animated_meshnode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 709                         m_animated_meshnode->setMaterialType(material_type);
 710                         m_animated_meshnode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 711                         m_animated_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
 712                                 m_prop.backface_culling);
 713                 } else
 714                         errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;
 715         } else if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 716                 ItemStack item;
 717                 infostream << "GenericCAO::addToScene(): wielditem" << std::endl;
 718                 if (m_prop.wield_item.empty()) {
 719                         // Old format, only textures are specified.
 720                         infostream << "textures: " << m_prop.textures.size() << std::endl;
 721                         if (!m_prop.textures.empty()) {
 722                                 infostream << "textures[0]: " << m_prop.textures[0]
 723                                         << std::endl;
 724                                 IItemDefManager *idef = m_client->idef();
 725                                 item = ItemStack(m_prop.textures[0], 1, 0, idef);
 726                         }
 727                 } else {
 728                         infostream << "serialized form: " << m_prop.wield_item << std::endl;
 729                         item.deSerialize(m_prop.wield_item, m_client->idef());
 730                 }
 731                 m_matrixnode = RenderingEngine::get_scene_manager()->
 732                         addDummyTransformationSceneNode(nullptr);
 733                 m_matrixnode->grab();
 734                 m_wield_meshnode = new WieldMeshSceneNode(
 735                         RenderingEngine::get_scene_manager(), -1);
 736                 m_wield_meshnode->setParent(m_matrixnode);
 737                 m_wield_meshnode->setItem(item, m_client,
 738                         (m_prop.visual == "wielditem"));
 739
 740                 m_wield_meshnode->setScale(m_prop.visual_size / 2.0f);
 741                 u8 li = m_last_light;
 742                 m_wield_meshnode->setColor(video::SColor(255, li, li, li));
 743         } else {
 744                 infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 745                                 <<"\" not supported"<<std::endl;
 746         }
 747
 748         /* don't update while punch texture modifier is active */
 749         if (m_reset_textures_timer < 0)
 750                 updateTextures(m_current_texture_modifier);
 751
 752         scene::ISceneNode *node = getSceneNode();
 753
 754         if (node && !m_prop.nametag.empty() && !m_is_local_player) {
 755                 // Add nametag
 756                 v3f pos;
 757                 pos.Y = m_prop.selectionbox.MaxEdge.Y + 0.3f;
 758                 m_nametag = m_client->getCamera()->addNametag(node,
 759                         m_prop.nametag, m_prop.nametag_color,
 760                         pos);
 761         }
 762
 763         updateNodePos();
 764         updateAnimation();
 765         updateBonePosition();
 766         updateAttachments();
 767 }
 768
 769 void GenericCAO::updateLight(u8 light_at_pos)
 770 {
 771         // Don't update light of attached one
 772         if (getParent() != NULL) {
 773                 return;
 774         }
 775
 776         updateLightNoCheck(light_at_pos);
 777
 778         // Update light of all children
 779         for (u16 i : m_attachment_child_ids) {
 780                 ClientActiveObject *obj = m_env->getActiveObject(i);
 781                 if (obj) {
 782                         obj->updateLightNoCheck(light_at_pos);
 783                 }
 784         }
 785 }
 786
 787 void GenericCAO::updateLightNoCheck(u8 light_at_pos)
 788 {
 789         if (m_glow < 0)
 790                 return;
 791
 792         u8 li = decode_light(light_at_pos + m_glow);
 793         if (li != m_last_light) {
 794                 m_last_light = li;
 795                 video::SColor color(255,li,li,li);
 796                 if (m_meshnode) {
 797                         setMeshColor(m_meshnode->getMesh(), color);
 798                 } else if (m_animated_meshnode) {
 799                         setAnimatedMeshColor(m_animated_meshnode, color);
 800                 } else if (m_wield_meshnode) {
 801                         m_wield_meshnode->setColor(color);
 802                 } else if (m_spritenode) {
 803                         m_spritenode->setColor(color);
 804                 }
 805         }
 806 }
 807
 808 v3s16 GenericCAO::getLightPosition()
 809 {
 810         if (m_is_player)
 811                 return floatToInt(m_position + v3f(0, 0.5 * BS, 0), BS);
 812
 813         return floatToInt(m_position, BS);
 814 }
 815
 816 void GenericCAO::updateNodePos()
 817 {
 818         if (getParent() != NULL)
 819                 return;
 820
 821         scene::ISceneNode *node = getSceneNode();
 822
 823         if (node) {
 824                 v3s16 camera_offset = m_env->getCameraOffset();
 825                 v3f pos = pos_translator.val_current -
 826                                 intToFloat(camera_offset, BS);
 827                 getPosRotMatrix().setTranslation(pos);
 828                 if (node != m_spritenode) { // rotate if not a sprite
 829                         v3f rot = m_is_local_player ? -m_rotation : -rot_translator.val_current;
 830                         setPitchYawRoll(getPosRotMatrix(), rot);
 831                 }
 832         }
 833 }
 834
 835 void GenericCAO::step(float dtime, ClientEnvironment *env)
 836 {
 837         // Handle model animations and update positions instantly to prevent lags
 838         if (m_is_local_player) {
 839                 LocalPlayer *player = m_env->getLocalPlayer();
 840                 m_position = player->getPosition();
 841                 pos_translator.val_current = m_position;
 842                 m_rotation.Y = wrapDegrees_0_360(player->getYaw());
 843                 rot_translator.val_current = m_rotation;
 844
 845                 if (m_is_visible) {
 846                         int old_anim = player->last_animation;
 847                         float old_anim_speed = player->last_animation_speed;
 848                         m_velocity = v3f(0,0,0);
 849                         m_acceleration = v3f(0,0,0);
 850                         const PlayerControl &controls = player->getPlayerControl();
 851
 852                         bool walking = false;
 853                         if (controls.up || controls.down || controls.left || controls.right ||
 854                                         controls.forw_move_joystick_axis != 0.f ||
 855                                         controls.sidew_move_joystick_axis != 0.f)
 856                                 walking = true;
 857
 858                         f32 new_speed = player->local_animation_speed;
 859                         v2s32 new_anim = v2s32(0,0);
 860                         bool allow_update = false;
 861
 862                         // increase speed if using fast or flying fast
 863                         if((g_settings->getBool("fast_move") &&
 864                                         m_client->checkLocalPrivilege("fast")) &&
 865                                         (controls.aux1 ||
 866                                         (!player->touching_ground &&
 867                                         g_settings->getBool("free_move") &&
 868                                         m_client->checkLocalPrivilege("fly"))))
 869                                         new_speed *= 1.5;
 870                         // slowdown speed if sneeking
 871                         if (controls.sneak && walking)
 872                                 new_speed /= 2;
 873
 874                         if (walking && (controls.LMB || controls.RMB)) {
 875                                 new_anim = player->local_animations[3];
 876                                 player->last_animation = WD_ANIM;
 877                         } else if(walking) {
 878                                 new_anim = player->local_animations[1];
 879                                 player->last_animation = WALK_ANIM;
 880                         } else if(controls.LMB || controls.RMB) {
 881                                 new_anim = player->local_animations[2];
 882                                 player->last_animation = DIG_ANIM;
 883                         }
 884
 885                         // Apply animations if input detected and not attached
 886                         // or set idle animation
 887                         if ((new_anim.X + new_anim.Y) > 0 && !player->isAttached) {
 888                                 allow_update = true;
 889                                 m_animation_range = new_anim;
 890                                 m_animation_speed = new_speed;
 891                                 player->last_animation_speed = m_animation_speed;
 892                         } else {
 893                                 player->last_animation = NO_ANIM;
 894
 895                                 if (old_anim != NO_ANIM) {
 896                                         m_animation_range = player->local_animations[0];
 897                                         updateAnimation();
 898                                 }
 899                         }
 900
 901                         // Update local player animations
 902                         if ((player->last_animation != old_anim ||
 903                                 m_animation_speed != old_anim_speed) &&
 904                                 player->last_animation != NO_ANIM && allow_update)
 905                                         updateAnimation();
 906
 907                 }
 908         }
 909
 910         if (m_visuals_expired && m_smgr) {
 911                 m_visuals_expired = false;
 912
 913                 // Attachments, part 1: All attached objects must be unparented first,
 914                 // or Irrlicht causes a segmentation fault
 915                 for (u16 cao_id : m_attachment_child_ids) {
 916                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
 917                         if (obj) {
 918                                 scene::ISceneNode *child_node = obj->getSceneNode();
 919                                 // The node's parent is always an IDummyTraformationSceneNode,
 920                                 // so we need to reparent that one instead.
 921                                 if (child_node)
 922                                         child_node->getParent()->setParent(m_smgr->getRootSceneNode());
 923                         }
 924                 }
 925
 926                 removeFromScene(false);
 927                 addToScene(m_client->tsrc());
 928
 929                 // Attachments, part 2: Now that the parent has been refreshed, put its attachments back
 930                 for (u16 cao_id : m_attachment_child_ids) {
 931                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
 932                         if (obj)
 933                                 obj->updateAttachments();
 934                 }
 935         }
 936
 937         // Make sure m_is_visible is always applied
 938         scene::ISceneNode *node = getSceneNode();
 939         if (node)
 940                 node->setVisible(m_is_visible);
 941
 942         if(getParent() != NULL) // Attachments should be glued to their parent by Irrlicht
 943         {
 944                 // Set these for later
 945                 m_position = getPosition();
 946                 m_velocity = v3f(0,0,0);
 947                 m_acceleration = v3f(0,0,0);
 948                 pos_translator.val_current = m_position;
 949
 950                 if(m_is_local_player) // Update local player attachment position
 951                 {
 952                         LocalPlayer *player = m_env->getLocalPlayer();
 953                         player->overridePosition = getParent()->getPosition();
 954                 }
 955         } else {
 956                 rot_translator.translate(dtime);
 957                 v3f lastpos = pos_translator.val_current;
 958
 959                 if(m_prop.physical)
 960                 {
 961                         aabb3f box = m_prop.collisionbox;
 962                         box.MinEdge *= BS;
 963                         box.MaxEdge *= BS;
 964                         collisionMoveResult moveresult;
 965                         f32 pos_max_d = BS*0.125; // Distance per iteration
 966                         v3f p_pos = m_position;
 967                         v3f p_velocity = m_velocity;
 968                         moveresult = collisionMoveSimple(env,env->getGameDef(),
 969                                         pos_max_d, box, m_prop.stepheight, dtime,
 970                                         &p_pos, &p_velocity, m_acceleration,
 971                                         this, m_prop.collideWithObjects);
 972                         // Apply results
 973                         m_position = p_pos;
 974                         m_velocity = p_velocity;
 975
 976                         bool is_end_position = moveresult.collides;
 977                         pos_translator.update(m_position, is_end_position, dtime);
 978                         pos_translator.translate(dtime);
 979                         updateNodePos();
 980                 } else {
 981                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
 982                         m_velocity += dtime * m_acceleration;
 983                         pos_translator.update(m_position, pos_translator.aim_is_end,
 984                                         pos_translator.anim_time);
 985                         pos_translator.translate(dtime);
 986                         updateNodePos();
 987                 }
 988
 989                 float moved = lastpos.getDistanceFrom(pos_translator.val_current);
 990                 m_step_distance_counter += moved;
 991                 if (m_step_distance_counter > 1.5f * BS) {
 992                         m_step_distance_counter = 0.0f;
 993                         if (!m_is_local_player && m_prop.makes_footstep_sound) {
 994                                 const NodeDefManager *ndef = m_client->ndef();
 995                                 v3s16 p = floatToInt(getPosition() +
 996                                         v3f(0.0f, (m_prop.collisionbox.MinEdge.Y - 0.5f) * BS, 0.0f), BS);
 997                                 MapNode n = m_env->getMap().getNode(p);
 998                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
 999                                 // Reduce footstep gain, as non-local-player footsteps are
1000                                 // somehow louder.
1001                                 spec.gain *= 0.6f;
1002                                 m_client->sound()->playSoundAt(spec, false, getPosition());
1003                         }
1004                 }
1005         }
1006
1007         m_anim_timer += dtime;
1008         if(m_anim_timer >= m_anim_framelength)
1009         {
1010                 m_anim_timer -= m_anim_framelength;
1011                 m_anim_frame++;
1012                 if(m_anim_frame >= m_anim_num_frames)
1013                         m_anim_frame = 0;
1014         }
1015
1016         updateTexturePos();
1017
1018         if(m_reset_textures_timer >= 0)
1019         {
1020                 m_reset_textures_timer -= dtime;
1021                 if(m_reset_textures_timer <= 0) {
1022                         m_reset_textures_timer = -1;
1023                         updateTextures(m_previous_texture_modifier);
1024                 }
1025         }
1026         if (!getParent() && std::fabs(m_prop.automatic_rotate) > 0.001) {
1027                 m_rotation.Y += dtime * m_prop.automatic_rotate * 180 / M_PI;
1028                 rot_translator.val_current = m_rotation;
1029                 updateNodePos();
1030         }
1031
1032         if (!getParent() && m_prop.automatic_face_movement_dir &&
1033                         (fabs(m_velocity.Z) > 0.001 || fabs(m_velocity.X) > 0.001)) {
1034                 float target_yaw = atan2(m_velocity.Z, m_velocity.X) * 180 / M_PI
1035                                 + m_prop.automatic_face_movement_dir_offset;
1036                 float max_rotation_per_sec =
1037                                 m_prop.automatic_face_movement_max_rotation_per_sec;
1038
1039                 if (max_rotation_per_sec > 0) {
1040                         wrappedApproachShortest(m_rotation.Y, target_yaw,
1041                                 dtime * max_rotation_per_sec, 360.f);
1042                 } else {
1043                         // Negative values of max_rotation_per_sec mean disabled.
1044                         m_rotation.Y = target_yaw;
1045                 }
1046
1047                 rot_translator.val_current = m_rotation;
1048                 updateNodePos();
1049         }
1050 }
1051
1052 void GenericCAO::updateTexturePos()
1053 {
1054         if(m_spritenode)
1055         {
1056                 scene::ICameraSceneNode* camera =
1057                                 m_spritenode->getSceneManager()->getActiveCamera();
1058                 if(!camera)
1059                         return;
1060                 v3f cam_to_entity = m_spritenode->getAbsolutePosition()
1061                                 - camera->getAbsolutePosition();
1062                 cam_to_entity.normalize();
1063
1064                 int row = m_tx_basepos.Y;
1065                 int col = m_tx_basepos.X;
1066
1067                 if (m_tx_select_horiz_by_yawpitch) {
1068                         if (cam_to_entity.Y > 0.75)
1069                                 col += 5;
1070                         else if (cam_to_entity.Y < -0.75)
1071                                 col += 4;
1072                         else {
1073                                 float mob_dir =
1074                                                 atan2(cam_to_entity.Z, cam_to_entity.X) / M_PI * 180.;
1075                                 float dir = mob_dir - m_rotation.Y;
1076                                 dir = wrapDegrees_180(dir);
1077                                 if (std::fabs(wrapDegrees_180(dir - 0)) <= 45.1f)
1078                                         col += 2;
1079                                 else if(std::fabs(wrapDegrees_180(dir - 90)) <= 45.1f)
1080                                         col += 3;
1081                                 else if(std::fabs(wrapDegrees_180(dir - 180)) <= 45.1f)
1082                                         col += 0;
1083                                 else if(std::fabs(wrapDegrees_180(dir + 90)) <= 45.1f)
1084                                         col += 1;
1085                                 else
1086                                         col += 4;
1087                         }
1088                 }
1089
1090                 // Animation goes downwards
1091                 row += m_anim_frame;
1092
1093                 float txs = m_tx_size.X;
1094                 float tys = m_tx_size.Y;
1095                 setBillboardTextureMatrix(m_spritenode, txs, tys, col, row);
1096         }
1097 }
1098
1099 // Do not pass by reference, see header.
1100 void GenericCAO::updateTextures(std::string mod)
1101 {
1102         ITextureSource *tsrc = m_client->tsrc();
1103
1104         bool use_trilinear_filter = g_settings->getBool("trilinear_filter");
1105         bool use_bilinear_filter = g_settings->getBool("bilinear_filter");
1106         bool use_anisotropic_filter = g_settings->getBool("anisotropic_filter");
1107
1108         m_previous_texture_modifier = m_current_texture_modifier;
1109         m_current_texture_modifier = mod;
1110         m_glow = m_prop.glow;
1111
1112         video::E_MATERIAL_TYPE material_type = (m_prop.use_texture_alpha) ?
1113                 video::EMT_TRANSPARENT_ALPHA_CHANNEL : video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1114
1115         if (m_spritenode) {
1116                 if (m_prop.visual == "sprite") {
1117                         std::string texturestring = "unknown_node.png";
1118                         if (!m_prop.textures.empty())
1119                                 texturestring = m_prop.textures[0];
1120                         texturestring += mod;
1121                         m_spritenode->getMaterial(0).MaterialType = material_type;
1122                         m_spritenode->getMaterial(0).MaterialTypeParam = 0.5f;
1123                         m_spritenode->setMaterialTexture(0,
1124                                         tsrc->getTextureForMesh(texturestring));
1125
1126                         // This allows setting per-material colors. However, until a real lighting
1127                         // system is added, the code below will have no effect. Once MineTest
1128                         // has directional lighting, it should work automatically.
1129                         if (!m_prop.colors.empty()) {
1130                                 m_spritenode->getMaterial(0).AmbientColor = m_prop.colors[0];
1131                                 m_spritenode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1132                                 m_spritenode->getMaterial(0).SpecularColor = m_prop.colors[0];
1133                         }
1134
1135                         m_spritenode->getMaterial(0).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1136                         m_spritenode->getMaterial(0).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1137                         m_spritenode->getMaterial(0).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1138                 }
1139         }
1140
1141         if (m_animated_meshnode) {
1142                 if (m_prop.visual == "mesh") {
1143                         for (u32 i = 0; i < m_prop.textures.size() &&
1144                                         i < m_animated_meshnode->getMaterialCount(); ++i) {
1145                                 std::string texturestring = m_prop.textures[i];
1146                                 if (texturestring.empty())
1147                                         continue; // Empty texture string means don't modify that material
1148                                 texturestring += mod;
1149                                 video::ITexture* texture = tsrc->getTextureForMesh(texturestring);
1150                                 if (!texture) {
1151                                         errorstream<<"GenericCAO::updateTextures(): Could not load texture "<<texturestring<<std::endl;
1152                                         continue;
1153                                 }
1154
1155                                 // Set material flags and texture
1156                                 video::SMaterial& material = m_animated_meshnode->getMaterial(i);
1157                                 material.MaterialType = material_type;
1158                                 material.MaterialTypeParam = 0.5f;
1159                                 material.TextureLayer[0].Texture = texture;
1160                                 material.setFlag(video::EMF_LIGHTING, true);
1161                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1162                                 material.setFlag(video::EMF_BACK_FACE_CULLING, m_prop.backface_culling);
1163
1164                                 // don't filter low-res textures, makes them look blurry
1165                                 // player models have a res of 64
1166                                 const core::dimension2d<u32> &size = texture->getOriginalSize();
1167                                 const u32 res = std::min(size.Height, size.Width);
1168                                 use_trilinear_filter &= res > 64;
1169                                 use_bilinear_filter &= res > 64;
1170
1171                                 m_animated_meshnode->getMaterial(i)
1172                                                 .setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1173                                 m_animated_meshnode->getMaterial(i)
1174                                                 .setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1175                                 m_animated_meshnode->getMaterial(i)
1176                                                 .setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1177                         }
1178                         for (u32 i = 0; i < m_prop.colors.size() &&
1179                         i < m_animated_meshnode->getMaterialCount(); ++i)
1180                         {
1181                                 // This allows setting per-material colors. However, until a real lighting
1182                                 // system is added, the code below will have no effect. Once MineTest
1183                                 // has directional lighting, it should work automatically.
1184                                 m_animated_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1185                                 m_animated_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1186                                 m_animated_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1187                         }
1188                 }
1189         }
1190         if(m_meshnode)
1191         {
1192                 if(m_prop.visual == "cube")
1193                 {
1194                         for (u32 i = 0; i < 6; ++i)
1195                         {
1196                                 std::string texturestring = "unknown_node.png";
1197                                 if(m_prop.textures.size() > i)
1198                                         texturestring = m_prop.textures[i];
1199                                 texturestring += mod;
1200
1201
1202                                 // Set material flags and texture
1203                                 video::SMaterial& material = m_meshnode->getMaterial(i);
1204                                 material.MaterialType = material_type;
1205                                 material.MaterialTypeParam = 0.5f;
1206                                 material.setFlag(video::EMF_LIGHTING, false);
1207                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1208                                 material.setTexture(0,
1209                                                 tsrc->getTextureForMesh(texturestring));
1210                                 material.getTextureMatrix(0).makeIdentity();
1211
1212                                 // This allows setting per-material colors. However, until a real lighting
1213                                 // system is added, the code below will have no effect. Once MineTest
1214                                 // has directional lighting, it should work automatically.
1215                                 if(m_prop.colors.size() > i)
1216                                 {
1217                                         m_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1218                                         m_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1219                                         m_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1220                                 }
1221
1222                                 m_meshnode->getMaterial(i).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1223                                 m_meshnode->getMaterial(i).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1224                                 m_meshnode->getMaterial(i).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1225                         }
1226                 } else if (m_prop.visual == "upright_sprite") {
1227                         scene::IMesh *mesh = m_meshnode->getMesh();
1228                         {
1229                                 std::string tname = "unknown_object.png";
1230                                 if (!m_prop.textures.empty())
1231                                         tname = m_prop.textures[0];
1232                                 tname += mod;
1233                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1234                                 buf->getMaterial().setTexture(0,
1235                                                 tsrc->getTextureForMesh(tname));
1236
1237                                 // This allows setting per-material colors. However, until a real lighting
1238                                 // system is added, the code below will have no effect. Once MineTest
1239                                 // has directional lighting, it should work automatically.
1240                                 if(!m_prop.colors.empty()) {
1241                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1242                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1243                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1244                                 }
1245
1246                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1247                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1248                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1249                         }
1250                         {
1251                                 std::string tname = "unknown_object.png";
1252                                 if (m_prop.textures.size() >= 2)
1253                                         tname = m_prop.textures[1];
1254                                 else if (!m_prop.textures.empty())
1255                                         tname = m_prop.textures[0];
1256                                 tname += mod;
1257                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1258                                 buf->getMaterial().setTexture(0,
1259                                                 tsrc->getTextureForMesh(tname));
1260
1261                                 // This allows setting per-material colors. However, until a real lighting
1262                                 // system is added, the code below will have no effect. Once MineTest
1263                                 // has directional lighting, it should work automatically.
1264                                 if (m_prop.colors.size() >= 2) {
1265                                         buf->getMaterial().AmbientColor = m_prop.colors[1];
1266                                         buf->getMaterial().DiffuseColor = m_prop.colors[1];
1267                                         buf->getMaterial().SpecularColor = m_prop.colors[1];
1268                                 } else if (!m_prop.colors.empty()) {
1269                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1270                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1271                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1272                                 }
1273
1274                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1275                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1276                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1277                         }
1278                         // Set mesh color (only if lighting is disabled)
1279                         if (!m_prop.colors.empty() && m_glow < 0)
1280                                 setMeshColor(mesh, m_prop.colors[0]);
1281                 }
1282         }
1283 }
1284
1285 void GenericCAO::updateAnimation()
1286 {
1287         if (!m_animated_meshnode)
1288                 return;
1289
1290         if (m_animated_meshnode->getStartFrame() != m_animation_range.X ||
1291                 m_animated_meshnode->getEndFrame() != m_animation_range.Y)
1292                         m_animated_meshnode->setFrameLoop(m_animation_range.X, m_animation_range.Y);
1293         if (m_animated_meshnode->getAnimationSpeed() != m_animation_speed)
1294                 m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1295         m_animated_meshnode->setTransitionTime(m_animation_blend);
1296 // Requires Irrlicht 1.8 or greater
1297 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR > 1
1298         if (m_animated_meshnode->getLoopMode() != m_animation_loop)
1299                 m_animated_meshnode->setLoopMode(m_animation_loop);
1300 #endif
1301 }
1302
1303 void GenericCAO::updateAnimationSpeed()
1304 {
1305         if (!m_animated_meshnode)
1306                 return;
1307
1308         m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1309 }
1310
1311 void GenericCAO::updateBonePosition()
1312 {
1313         if (m_bone_position.empty() || !m_animated_meshnode)
1314                 return;
1315
1316         m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
1317         for(std::unordered_map<std::string, core::vector2d<v3f>>::const_iterator
1318                         ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii) {
1319                 std::string bone_name = (*ii).first;
1320                 v3f bone_pos = (*ii).second.X;
1321                 v3f bone_rot = (*ii).second.Y;
1322                 irr::scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
1323                 if(bone)
1324                 {
1325                         bone->setPosition(bone_pos);
1326                         bone->setRotation(bone_rot);
1327                 }
1328         }
1329 }
1330
1331 void GenericCAO::updateAttachments()
1332 {
1333         ClientActiveObject *parent = getParent();
1334
1335         m_attached_to_local = parent && parent->isLocalPlayer();
1336
1337         /*
1338         Following cases exist:
1339                 m_attachment_parent_id == 0 && !parent
1340                         This object is not attached
1341                 m_attachment_parent_id != 0 && parent
1342                         This object is attached
1343                 m_attachment_parent_id != 0 && !parent
1344                         This object will be attached as soon the parent is known
1345                 m_attachment_parent_id == 0 && parent
1346                         Impossible case
1347         */
1348
1349         if (!parent) { // Detach or don't attach
1350                 if (m_matrixnode) {
1351                         v3f old_pos = m_matrixnode->getAbsolutePosition();
1352                         m_matrixnode->setParent(m_smgr->getRootSceneNode());
1353                         getPosRotMatrix().setTranslation(old_pos);
1354                         m_matrixnode->updateAbsolutePosition();
1355                 }
1356         }
1357         else // Attach
1358         {
1359                 scene::ISceneNode *parent_node = parent->getSceneNode();
1360                 scene::IAnimatedMeshSceneNode *parent_animated_mesh_node =
1361                                 parent->getAnimatedMeshSceneNode();
1362                 if (parent_animated_mesh_node && !m_attachment_bone.empty()) {
1363                         parent_node = parent_animated_mesh_node->getJointNode(m_attachment_bone.c_str());
1364                 }
1365
1366                 if (m_matrixnode && parent_node) {
1367                         m_matrixnode->setParent(parent_node);
1368                         getPosRotMatrix().setTranslation(m_attachment_position);
1369                         //setPitchYawRoll(getPosRotMatrix(), m_attachment_rotation);
1370                         // use Irrlicht eulers instead
1371                         getPosRotMatrix().setRotationDegrees(m_attachment_rotation);
1372                         m_matrixnode->updateAbsolutePosition();
1373                 }
1374         }
1375         if (m_is_local_player) {
1376                 LocalPlayer *player = m_env->getLocalPlayer();
1377                 player->isAttached = parent;
1378                 player->parent = parent;
1379         }
1380 }
1381
1382 void GenericCAO::processMessage(const std::string &data)
1383 {
1384         //infostream<<"GenericCAO: Got message"<<std::endl;
1385         std::istringstream is(data, std::ios::binary);
1386         // command
1387         u8 cmd = readU8(is);
1388         if (cmd == GENERIC_CMD_SET_PROPERTIES) {
1389                 m_prop = gob_read_set_properties(is);
1390
1391                 m_selection_box = m_prop.selectionbox;
1392                 m_selection_box.MinEdge *= BS;
1393                 m_selection_box.MaxEdge *= BS;
1394
1395                 m_tx_size.X = 1.0 / m_prop.spritediv.X;
1396                 m_tx_size.Y = 1.0 / m_prop.spritediv.Y;
1397
1398                 if(!m_initial_tx_basepos_set){
1399                         m_initial_tx_basepos_set = true;
1400                         m_tx_basepos = m_prop.initial_sprite_basepos;
1401                 }
1402                 if (m_is_local_player) {
1403                         LocalPlayer *player = m_env->getLocalPlayer();
1404                         player->makes_footstep_sound = m_prop.makes_footstep_sound;
1405                         aabb3f collision_box = m_prop.collisionbox;
1406                         collision_box.MinEdge *= BS;
1407                         collision_box.MaxEdge *= BS;
1408                         player->setCollisionbox(collision_box);
1409                         player->setEyeHeight(m_prop.eye_height);
1410                         player->setZoomFOV(m_prop.zoom_fov);
1411                 }
1412
1413                 if ((m_is_player && !m_is_local_player) && m_prop.nametag.empty())
1414                         m_prop.nametag = m_name;
1415
1416                 expireVisuals();
1417         } else if (cmd == GENERIC_CMD_UPDATE_POSITION) {
1418                 // Not sent by the server if this object is an attachment.
1419                 // We might however get here if the server notices the object being detached before the client.
1420                 m_position = readV3F32(is);
1421                 m_velocity = readV3F32(is);
1422                 m_acceleration = readV3F32(is);
1423
1424                 if (std::fabs(m_prop.automatic_rotate) < 0.001f)
1425                         m_rotation = readV3F32(is);
1426                 else
1427                         readV3F32(is);
1428
1429                 m_rotation = wrapDegrees_0_360_v3f(m_rotation);
1430                 bool do_interpolate = readU8(is);
1431                 bool is_end_position = readU8(is);
1432                 float update_interval = readF32(is);
1433
1434                 // Place us a bit higher if we're physical, to not sink into
1435                 // the ground due to sucky collision detection...
1436                 if(m_prop.physical)
1437                         m_position += v3f(0,0.002,0);
1438
1439                 if(getParent() != NULL) // Just in case
1440                         return;
1441
1442                 if(do_interpolate)
1443                 {
1444                         if(!m_prop.physical)
1445                                 pos_translator.update(m_position, is_end_position, update_interval);
1446                 } else {
1447                         pos_translator.init(m_position);
1448                 }
1449                 rot_translator.update(m_rotation, false, update_interval);
1450                 updateNodePos();
1451         } else if (cmd == GENERIC_CMD_SET_TEXTURE_MOD) {
1452                 std::string mod = deSerializeString(is);
1453
1454                 // immediatly reset a engine issued texture modifier if a mod sends a different one
1455                 if (m_reset_textures_timer > 0) {
1456                         m_reset_textures_timer = -1;
1457                         updateTextures(m_previous_texture_modifier);
1458                 }
1459                 updateTextures(mod);
1460         } else if (cmd == GENERIC_CMD_SET_SPRITE) {
1461                 v2s16 p = readV2S16(is);
1462                 int num_frames = readU16(is);
1463                 float framelength = readF32(is);
1464                 bool select_horiz_by_yawpitch = readU8(is);
1465
1466                 m_tx_basepos = p;
1467                 m_anim_num_frames = num_frames;
1468                 m_anim_framelength = framelength;
1469                 m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1470
1471                 updateTexturePos();
1472         } else if (cmd == GENERIC_CMD_SET_PHYSICS_OVERRIDE) {
1473                 float override_speed = readF32(is);
1474                 float override_jump = readF32(is);
1475                 float override_gravity = readF32(is);
1476                 // these are sent inverted so we get true when the server sends nothing
1477                 bool sneak = !readU8(is);
1478                 bool sneak_glitch = !readU8(is);
1479                 bool new_move = !readU8(is);
1480
1481
1482                 if(m_is_local_player)
1483                 {
1484                         LocalPlayer *player = m_env->getLocalPlayer();
1485                         player->physics_override_speed = override_speed;
1486                         player->physics_override_jump = override_jump;
1487                         player->physics_override_gravity = override_gravity;
1488                         player->physics_override_sneak = sneak;
1489                         player->physics_override_sneak_glitch = sneak_glitch;
1490                         player->physics_override_new_move = new_move;
1491                 }
1492         } else if (cmd == GENERIC_CMD_SET_ANIMATION) {
1493                 // TODO: change frames send as v2s32 value
1494                 v2f range = readV2F32(is);
1495                 if (!m_is_local_player) {
1496                         m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1497                         m_animation_speed = readF32(is);
1498                         m_animation_blend = readF32(is);
1499                         // these are sent inverted so we get true when the server sends nothing
1500                         m_animation_loop = !readU8(is);
1501                         updateAnimation();
1502                 } else {
1503                         LocalPlayer *player = m_env->getLocalPlayer();
1504                         if(player->last_animation == NO_ANIM)
1505                         {
1506                                 m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1507                                 m_animation_speed = readF32(is);
1508                                 m_animation_blend = readF32(is);
1509                                 // these are sent inverted so we get true when the server sends nothing
1510                                 m_animation_loop = !readU8(is);
1511                         }
1512                         // update animation only if local animations present
1513                         // and received animation is unknown (except idle animation)
1514                         bool is_known = false;
1515                         for (int i = 1;i<4;i++)
1516                         {
1517                                 if(m_animation_range.Y == player->local_animations[i].Y)
1518                                         is_known = true;
1519                         }
1520                         if(!is_known ||
1521                                         (player->local_animations[1].Y + player->local_animations[2].Y < 1))
1522                         {
1523                                         updateAnimation();
1524                         }
1525                 }
1526         } else if (cmd == GENERIC_CMD_SET_ANIMATION_SPEED) {
1527                 m_animation_speed = readF32(is);
1528                 updateAnimationSpeed();
1529         } else if (cmd == GENERIC_CMD_SET_BONE_POSITION) {
1530                 std::string bone = deSerializeString(is);
1531                 v3f position = readV3F32(is);
1532                 v3f rotation = readV3F32(is);
1533                 m_bone_position[bone] = core::vector2d<v3f>(position, rotation);
1534
1535                 updateBonePosition();
1536         } else if (cmd == GENERIC_CMD_ATTACH_TO) {
1537                 u16 parent_id = readS16(is);
1538                 std::string bone = deSerializeString(is);
1539                 v3f position = readV3F32(is);
1540                 v3f rotation = readV3F32(is);
1541
1542                 setAttachment(parent_id, bone, position, rotation);
1543
1544                 // localplayer itself can't be attached to localplayer
1545                 if (!m_is_local_player)
1546                         m_is_visible = !m_attached_to_local;
1547         } else if (cmd == GENERIC_CMD_PUNCHED) {
1548                 u16 result_hp = readU16(is);
1549
1550                 // Use this instead of the send damage to not interfere with prediction
1551                 s32 damage = (s32)m_hp - (s32)result_hp;
1552
1553                 m_hp = result_hp;
1554
1555                 if (m_is_local_player)
1556                         m_env->getLocalPlayer()->hp = m_hp;
1557
1558                 if (damage > 0)
1559                 {
1560                         if (m_hp == 0)
1561                         {
1562                                 // TODO: Execute defined fast response
1563                                 // As there is no definition, make a smoke puff
1564                                 ClientSimpleObject *simple = createSmokePuff(
1565                                                 m_smgr, m_env, m_position,
1566                                                 v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1567                                 m_env->addSimpleObject(simple);
1568                         } else if (m_reset_textures_timer < 0) {
1569                                 // TODO: Execute defined fast response
1570                                 // Flashing shall suffice as there is no definition
1571                                 m_reset_textures_timer = 0.05;
1572                                 if(damage >= 2)
1573                                         m_reset_textures_timer += 0.05 * damage;
1574                                 updateTextures(m_current_texture_modifier + "^[brighten");
1575                         }
1576                 }
1577
1578                 if (m_hp == 0) {
1579                         // Same as 'Server::DiePlayer'
1580                         clearParentAttachment();
1581                         // Same as 'ObjectRef::l_remove'
1582                         if (!m_is_player)
1583                                 clearChildAttachments();
1584                 }
1585         } else if (cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS) {
1586                 m_armor_groups.clear();
1587                 int armor_groups_size = readU16(is);
1588                 for(int i=0; i<armor_groups_size; i++)
1589                 {
1590                         std::string name = deSerializeString(is);
1591                         int rating = readS16(is);
1592                         m_armor_groups[name] = rating;
1593                 }
1594         } else if (cmd == GENERIC_CMD_UPDATE_NAMETAG_ATTRIBUTES) {
1595                 // Deprecated, for backwards compatibility only.
1596                 readU8(is); // version
1597                 m_prop.nametag_color = readARGB8(is);
1598                 if (m_nametag != NULL) {
1599                         m_nametag->nametag_color = m_prop.nametag_color;
1600                         v3f pos;
1601                         pos.Y = m_prop.collisionbox.MaxEdge.Y + 0.3f;
1602                         m_nametag->nametag_pos = pos;
1603                 }
1604         } else if (cmd == GENERIC_CMD_SPAWN_INFANT) {
1605                 u16 child_id = readU16(is);
1606                 u8 type = readU8(is); // maybe this will be useful later
1607                 (void)type;
1608
1609                 addAttachmentChild(child_id);
1610         } else {
1611                 warningstream << FUNCTION_NAME
1612                         << ": unknown command or outdated client \""
1613                         << +cmd << "\"" << std::endl;
1614         }
1615 }
1616
1617 /* \pre punchitem != NULL
1618  */
1619 bool GenericCAO::directReportPunch(v3f dir, const ItemStack *punchitem,
1620                 float time_from_last_punch)
1621 {
1622         assert(punchitem);      // pre-condition
1623         const ToolCapabilities *toolcap =
1624                         &punchitem->getToolCapabilities(m_client->idef());
1625         PunchDamageResult result = getPunchDamage(
1626                         m_armor_groups,
1627                         toolcap,
1628                         punchitem,
1629                         time_from_last_punch);
1630
1631         if(result.did_punch && result.damage != 0)
1632         {
1633                 if(result.damage < m_hp)
1634                 {
1635                         m_hp -= result.damage;
1636                 } else {
1637                         m_hp = 0;
1638                         // TODO: Execute defined fast response
1639                         // As there is no definition, make a smoke puff
1640                         ClientSimpleObject *simple = createSmokePuff(
1641                                         m_smgr, m_env, m_position,
1642                                         v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1643                         m_env->addSimpleObject(simple);
1644                 }
1645                 // TODO: Execute defined fast response
1646                 // Flashing shall suffice as there is no definition
1647                 if (m_reset_textures_timer < 0) {
1648                         m_reset_textures_timer = 0.05;
1649                         if (result.damage >= 2)
1650                                 m_reset_textures_timer += 0.05 * result.damage;
1651                         updateTextures(m_current_texture_modifier + "^[brighten");
1652                 }
1653         }
1654
1655         return false;
1656 }
1657
1658 std::string GenericCAO::debugInfoText()
1659 {
1660         std::ostringstream os(std::ios::binary);
1661         os<<"GenericCAO hp="<<m_hp<<"\n";
1662         os<<"armor={";
1663         for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1664                         i != m_armor_groups.end(); ++i)
1665         {
1666                 os<<i->first<<"="<<i->second<<", ";
1667         }
1668         os<<"}";
1669         return os.str();
1670 }
1671
1672 // Prototype
1673 GenericCAO proto_GenericCAO(NULL, NULL);