src/content_cao.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010-2011 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 "tile.h"
  22 #include "environment.h"
  23 #include "collision.h"
  24 #include "settings.h"
  25 #include <ICameraSceneNode.h>
  26 #include <ITextSceneNode.h>
  27 #include <IBillboardSceneNode.h>
  28 #include "serialization.h" // For decompressZlib
  29 #include "gamedef.h"
  30 #include "clientobject.h"
  31 #include "content_object.h"
  32 #include "mesh.h"
  33 #include "itemdef.h"
  34 #include "tool.h"
  35 #include "content_cso.h"
  36 #include "sound.h"
  37 #include "nodedef.h"
  38 #include "localplayer.h"
  39 #include "util/numeric.h" // For IntervalLimiter
  40 #include "util/serialize.h"
  41 #include "util/mathconstants.h"
  42 #include "map.h"
  43 #include <IMeshManipulator.h>
  44 #include <IAnimatedMeshSceneNode.h>
  45 #include <IBoneSceneNode.h>
  46
  47 class Settings;
  48 struct ToolCapabilities;
  49
  50 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
  51
  52 core::map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
  53
  54 /*
  55         SmoothTranslator
  56 */
  57
  58 struct SmoothTranslator
  59 {
  60         v3f vect_old;
  61         v3f vect_show;
  62         v3f vect_aim;
  63         f32 anim_counter;
  64         f32 anim_time;
  65         f32 anim_time_counter;
  66         bool aim_is_end;
  67
  68         SmoothTranslator():
  69                 vect_old(0,0,0),
  70                 vect_show(0,0,0),
  71                 vect_aim(0,0,0),
  72                 anim_counter(0),
  73                 anim_time(0),
  74                 anim_time_counter(0),
  75                 aim_is_end(true)
  76         {}
  77
  78         void init(v3f vect)
  79         {
  80                 vect_old = vect;
  81                 vect_show = vect;
  82                 vect_aim = vect;
  83                 anim_counter = 0;
  84                 anim_time = 0;
  85                 anim_time_counter = 0;
  86                 aim_is_end = true;
  87         }
  88
  89         void sharpen()
  90         {
  91                 init(vect_show);
  92         }
  93
  94         void update(v3f vect_new, bool is_end_position=false, float update_interval=-1)
  95         {
  96                 aim_is_end = is_end_position;
  97                 vect_old = vect_show;
  98                 vect_aim = vect_new;
  99                 if(update_interval > 0){
 100                         anim_time = update_interval;
 101                 } else {
 102                         if(anim_time < 0.001 || anim_time > 1.0)
 103                                 anim_time = anim_time_counter;
 104                         else
 105                                 anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
 106                 }
 107                 anim_time_counter = 0;
 108                 anim_counter = 0;
 109         }
 110
 111         void translate(f32 dtime)
 112         {
 113                 anim_time_counter = anim_time_counter + dtime;
 114                 anim_counter = anim_counter + dtime;
 115                 v3f vect_move = vect_aim - vect_old;
 116                 f32 moveratio = 1.0;
 117                 if(anim_time > 0.001)
 118                         moveratio = anim_time_counter / anim_time;
 119                 // Move a bit less than should, to avoid oscillation
 120                 moveratio = moveratio * 0.8;
 121                 float move_end = 1.5;
 122                 if(aim_is_end)
 123                         move_end = 1.0;
 124                 if(moveratio > move_end)
 125                         moveratio = move_end;
 126                 vect_show = vect_old + vect_move * moveratio;
 127         }
 128
 129         bool is_moving()
 130         {
 131                 return ((anim_time_counter / anim_time) < 1.4);
 132         }
 133 };
 134
 135 /*
 136         Other stuff
 137 */
 138
 139 static void setBillboardTextureMatrix(scene::IBillboardSceneNode *bill,
 140                 float txs, float tys, int col, int row)
 141 {
 142         video::SMaterial& material = bill->getMaterial(0);
 143         core::matrix4& matrix = material.getTextureMatrix(0);
 144         matrix.setTextureTranslate(txs*col, tys*row);
 145         matrix.setTextureScale(txs, tys);
 146 }
 147
 148 /*
 149         TestCAO
 150 */
 151
 152 class TestCAO : public ClientActiveObject
 153 {
 154 public:
 155         TestCAO(IGameDef *gamedef, ClientEnvironment *env);
 156         virtual ~TestCAO();
 157
 158         u8 getType() const
 159         {
 160                 return ACTIVEOBJECT_TYPE_TEST;
 161         }
 162
 163         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 164
 165         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 166                         IrrlichtDevice *irr);
 167         void removeFromScene();
 168         void updateLight(u8 light_at_pos);
 169         v3s16 getLightPosition();
 170         void updateNodePos();
 171
 172         void step(float dtime, ClientEnvironment *env);
 173
 174         void processMessage(const std::string &data);
 175
 176 private:
 177         scene::IMeshSceneNode *m_node;
 178         v3f m_position;
 179 };
 180
 181 // Prototype
 182 TestCAO proto_TestCAO(NULL, NULL);
 183
 184 TestCAO::TestCAO(IGameDef *gamedef, ClientEnvironment *env):
 185         ClientActiveObject(0, gamedef, env),
 186         m_node(NULL),
 187         m_position(v3f(0,10*BS,0))
 188 {
 189         ClientActiveObject::registerType(getType(), create);
 190 }
 191
 192 TestCAO::~TestCAO()
 193 {
 194 }
 195
 196 ClientActiveObject* TestCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 197 {
 198         return new TestCAO(gamedef, env);
 199 }
 200
 201 void TestCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 202                         IrrlichtDevice *irr)
 203 {
 204         if(m_node != NULL)
 205                 return;
 206
 207         //video::IVideoDriver* driver = smgr->getVideoDriver();
 208
 209         scene::SMesh *mesh = new scene::SMesh();
 210         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 211         video::SColor c(255,255,255,255);
 212         video::S3DVertex vertices[4] =
 213         {
 214                 video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 215                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 216                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 217                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
 218         };
 219         u16 indices[] = {0,1,2,2,3,0};
 220         buf->append(vertices, 4, indices, 6);
 221         // Set material
 222         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 223         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 224         buf->getMaterial().setTexture(0, tsrc->getTextureRaw("rat.png"));
 225         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 226         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 227         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 228         // Add to mesh
 229         mesh->addMeshBuffer(buf);
 230         buf->drop();
 231         m_node = smgr->addMeshSceneNode(mesh, NULL);
 232         mesh->drop();
 233         updateNodePos();
 234 }
 235
 236 void TestCAO::removeFromScene()
 237 {
 238         if(m_node == NULL)
 239                 return;
 240
 241         m_node->remove();
 242         m_node = NULL;
 243 }
 244
 245 void TestCAO::updateLight(u8 light_at_pos)
 246 {
 247 }
 248
 249 v3s16 TestCAO::getLightPosition()
 250 {
 251         return floatToInt(m_position, BS);
 252 }
 253
 254 void TestCAO::updateNodePos()
 255 {
 256         if(m_node == NULL)
 257                 return;
 258
 259         m_node->setPosition(m_position);
 260         //m_node->setRotation(v3f(0, 45, 0));
 261 }
 262
 263 void TestCAO::step(float dtime, ClientEnvironment *env)
 264 {
 265         if(m_node)
 266         {
 267                 v3f rot = m_node->getRotation();
 268                 //infostream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
 269                 rot.Y += dtime * 180;
 270                 m_node->setRotation(rot);
 271         }
 272 }
 273
 274 void TestCAO::processMessage(const std::string &data)
 275 {
 276         infostream<<"TestCAO: Got data: "<<data<<std::endl;
 277         std::istringstream is(data, std::ios::binary);
 278         u16 cmd;
 279         is>>cmd;
 280         if(cmd == 0)
 281         {
 282                 v3f newpos;
 283                 is>>newpos.X;
 284                 is>>newpos.Y;
 285                 is>>newpos.Z;
 286                 m_position = newpos;
 287                 updateNodePos();
 288         }
 289 }
 290
 291 /*
 292         ItemCAO
 293 */
 294
 295 class ItemCAO : public ClientActiveObject
 296 {
 297 public:
 298         ItemCAO(IGameDef *gamedef, ClientEnvironment *env);
 299         virtual ~ItemCAO();
 300
 301         u8 getType() const
 302         {
 303                 return ACTIVEOBJECT_TYPE_ITEM;
 304         }
 305
 306         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 307
 308         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 309                         IrrlichtDevice *irr);
 310         void removeFromScene();
 311         void updateLight(u8 light_at_pos);
 312         v3s16 getLightPosition();
 313         void updateNodePos();
 314         void updateInfoText();
 315         void updateTexture();
 316
 317         void step(float dtime, ClientEnvironment *env);
 318
 319         void processMessage(const std::string &data);
 320
 321         void initialize(const std::string &data);
 322
 323         core::aabbox3d<f32>* getSelectionBox()
 324                 {return &m_selection_box;}
 325         v3f getPosition()
 326                 {return m_position;}
 327
 328         std::string infoText()
 329                 {return m_infotext;}
 330
 331 private:
 332         core::aabbox3d<f32> m_selection_box;
 333         scene::IMeshSceneNode *m_node;
 334         v3f m_position;
 335         std::string m_itemstring;
 336         std::string m_infotext;
 337 };
 338
 339 #include "inventory.h"
 340
 341 // Prototype
 342 ItemCAO proto_ItemCAO(NULL, NULL);
 343
 344 ItemCAO::ItemCAO(IGameDef *gamedef, ClientEnvironment *env):
 345         ClientActiveObject(0, gamedef, env),
 346         m_selection_box(-BS/3.,0.0,-BS/3., BS/3.,BS*2./3.,BS/3.),
 347         m_node(NULL),
 348         m_position(v3f(0,10*BS,0))
 349 {
 350         if(!gamedef && !env)
 351         {
 352                 ClientActiveObject::registerType(getType(), create);
 353         }
 354 }
 355
 356 ItemCAO::~ItemCAO()
 357 {
 358 }
 359
 360 ClientActiveObject* ItemCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 361 {
 362         return new ItemCAO(gamedef, env);
 363 }
 364
 365 void ItemCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 366                         IrrlichtDevice *irr)
 367 {
 368         if(m_node != NULL)
 369                 return;
 370
 371         //video::IVideoDriver* driver = smgr->getVideoDriver();
 372
 373         scene::SMesh *mesh = new scene::SMesh();
 374         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 375         video::SColor c(255,255,255,255);
 376         video::S3DVertex vertices[4] =
 377         {
 378                 /*video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 379                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 380                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 381                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),*/
 382                 video::S3DVertex(BS/3.,0,0, 0,0,0, c, 0,1),
 383                 video::S3DVertex(-BS/3.,0,0, 0,0,0, c, 1,1),
 384                 video::S3DVertex(-BS/3.,0+BS*2./3.,0, 0,0,0, c, 1,0),
 385                 video::S3DVertex(BS/3.,0+BS*2./3.,0, 0,0,0, c, 0,0),
 386         };
 387         u16 indices[] = {0,1,2,2,3,0};
 388         buf->append(vertices, 4, indices, 6);
 389         // Set material
 390         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 391         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 392         // Initialize with a generated placeholder texture
 393         buf->getMaterial().setTexture(0, tsrc->getTextureRaw(""));
 394         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 395         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 396         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 397         // Add to mesh
 398         mesh->addMeshBuffer(buf);
 399         buf->drop();
 400         m_node = smgr->addMeshSceneNode(mesh, NULL);
 401         mesh->drop();
 402         updateNodePos();
 403
 404         /*
 405                 Update image of node
 406         */
 407
 408         updateTexture();
 409 }
 410
 411 void ItemCAO::removeFromScene()
 412 {
 413         if(m_node == NULL)
 414                 return;
 415
 416         m_node->remove();
 417         m_node = NULL;
 418 }
 419
 420 void ItemCAO::updateLight(u8 light_at_pos)
 421 {
 422         if(m_node == NULL)
 423                 return;
 424
 425         u8 li = decode_light(light_at_pos);
 426         video::SColor color(255,li,li,li);
 427         setMeshColor(m_node->getMesh(), color);
 428 }
 429
 430 v3s16 ItemCAO::getLightPosition()
 431 {
 432         return floatToInt(m_position + v3f(0,0.5*BS,0), BS);
 433 }
 434
 435 void ItemCAO::updateNodePos()
 436 {
 437         if(m_node == NULL)
 438                 return;
 439
 440         m_node->setPosition(m_position);
 441 }
 442
 443 void ItemCAO::updateInfoText()
 444 {
 445         try{
 446                 IItemDefManager *idef = m_gamedef->idef();
 447                 ItemStack item;
 448                 item.deSerialize(m_itemstring, idef);
 449                 if(item.isKnown(idef))
 450                         m_infotext = item.getDefinition(idef).description;
 451                 else
 452                         m_infotext = "Unknown item: '" + m_itemstring + "'";
 453                 if(item.count >= 2)
 454                         m_infotext += " (" + itos(item.count) + ")";
 455         }
 456         catch(SerializationError &e)
 457         {
 458                 m_infotext = "Unknown item: '" + m_itemstring + "'";
 459         }
 460 }
 461
 462 void ItemCAO::updateTexture()
 463 {
 464         if(m_node == NULL)
 465                 return;
 466
 467         // Create an inventory item to see what is its image
 468         std::istringstream is(m_itemstring, std::ios_base::binary);
 469         video::ITexture *texture = NULL;
 470         try{
 471                 IItemDefManager *idef = m_gamedef->idef();
 472                 ItemStack item;
 473                 item.deSerialize(is, idef);
 474                 texture = item.getDefinition(idef).inventory_texture;
 475         }
 476         catch(SerializationError &e)
 477         {
 478                 infostream<<"WARNING: "<<__FUNCTION_NAME
 479                                 <<": error deSerializing itemstring \""
 480                                 <<m_itemstring<<std::endl;
 481         }
 482
 483         // Set meshbuffer texture
 484         m_node->getMaterial(0).setTexture(0, texture);
 485 }
 486
 487
 488 void ItemCAO::step(float dtime, ClientEnvironment *env)
 489 {
 490         if(m_node)
 491         {
 492                 /*v3f rot = m_node->getRotation();
 493                 rot.Y += dtime * 120;
 494                 m_node->setRotation(rot);*/
 495                 LocalPlayer *player = env->getLocalPlayer();
 496                 assert(player);
 497                 v3f rot = m_node->getRotation();
 498                 rot.Y = 180.0 - (player->getYaw());
 499                 m_node->setRotation(rot);
 500         }
 501 }
 502
 503 void ItemCAO::processMessage(const std::string &data)
 504 {
 505         //infostream<<"ItemCAO: Got message"<<std::endl;
 506         std::istringstream is(data, std::ios::binary);
 507         // command
 508         u8 cmd = readU8(is);
 509         if(cmd == 0)
 510         {
 511                 // pos
 512                 m_position = readV3F1000(is);
 513                 updateNodePos();
 514         }
 515         if(cmd == 1)
 516         {
 517                 // itemstring
 518                 m_itemstring = deSerializeString(is);
 519                 updateInfoText();
 520                 updateTexture();
 521         }
 522 }
 523
 524 void ItemCAO::initialize(const std::string &data)
 525 {
 526         infostream<<"ItemCAO: Got init data"<<std::endl;
 527
 528         {
 529                 std::istringstream is(data, std::ios::binary);
 530                 // version
 531                 u8 version = readU8(is);
 532                 // check version
 533                 if(version != 0)
 534                         return;
 535                 // pos
 536                 m_position = readV3F1000(is);
 537                 // itemstring
 538                 m_itemstring = deSerializeString(is);
 539         }
 540
 541         updateNodePos();
 542         updateInfoText();
 543 }
 544
 545 /*
 546         GenericCAO
 547 */
 548
 549 #include "genericobject.h"
 550
 551 class GenericCAO : public ClientActiveObject
 552 {
 553 private:
 554         // Only set at initialization
 555         std::string m_name;
 556         bool m_is_player;
 557         bool m_is_local_player;
 558         int m_id;
 559         // Property-ish things
 560         ObjectProperties m_prop;
 561         //
 562         scene::ISceneManager *m_smgr;
 563         IrrlichtDevice *m_irr;
 564         core::aabbox3d<f32> m_selection_box;
 565         scene::IMeshSceneNode *m_meshnode;
 566         scene::IAnimatedMeshSceneNode *m_animated_meshnode;
 567         scene::IBillboardSceneNode *m_spritenode;
 568         scene::ITextSceneNode* m_textnode;
 569         v3f m_position;
 570         v3f m_velocity;
 571         v3f m_acceleration;
 572         float m_yaw;
 573         s16 m_hp;
 574         SmoothTranslator pos_translator;
 575         // Spritesheet/animation stuff
 576         v2f m_tx_size;
 577         v2s16 m_tx_basepos;
 578         bool m_initial_tx_basepos_set;
 579         bool m_tx_select_horiz_by_yawpitch;
 580         v2f m_frames;
 581         int m_frame_speed;
 582         int m_frame_blend;
 583         std::map<std::string, core::vector2d<v3f> > m_bone_posrot;
 584         ClientActiveObject* m_attachment_parent;
 585         std::string m_attachment_bone;
 586         v3f m_attachment_position;
 587         v3f m_attachment_rotation;
 588         int m_anim_frame;
 589         int m_anim_num_frames;
 590         float m_anim_framelength;
 591         float m_anim_timer;
 592         ItemGroupList m_armor_groups;
 593         float m_reset_textures_timer;
 594         bool m_visuals_expired;
 595         float m_step_distance_counter;
 596         u8 m_last_light;
 597         bool m_is_visible;
 598
 599 public:
 600         GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
 601                 ClientActiveObject(0, gamedef, env),
 602                 //
 603                 m_is_player(false),
 604                 m_is_local_player(false),
 605                 m_id(0),
 606                 //
 607                 m_smgr(NULL),
 608                 m_irr(NULL),
 609                 m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
 610                 m_meshnode(NULL),
 611                 m_animated_meshnode(NULL),
 612                 m_spritenode(NULL),
 613                 m_textnode(NULL),
 614                 m_position(v3f(0,10*BS,0)),
 615                 m_velocity(v3f(0,0,0)),
 616                 m_acceleration(v3f(0,0,0)),
 617                 m_yaw(0),
 618                 m_hp(1),
 619                 m_tx_size(1,1),
 620                 m_tx_basepos(0,0),
 621                 m_initial_tx_basepos_set(false),
 622                 m_tx_select_horiz_by_yawpitch(false),
 623                 m_frames(v2f(0,0)),
 624                 m_frame_speed(15),
 625                 m_frame_blend(0),
 626                 // Nothing to do for m_bone_posrot
 627                 m_attachment_parent(NULL),
 628                 m_attachment_bone(""),
 629                 m_attachment_position(v3f(0,0,0)),
 630                 m_attachment_rotation(v3f(0,0,0)),
 631                 m_anim_frame(0),
 632                 m_anim_num_frames(1),
 633                 m_anim_framelength(0.2),
 634                 m_anim_timer(0),
 635                 m_reset_textures_timer(-1),
 636                 m_visuals_expired(false),
 637                 m_step_distance_counter(0),
 638                 m_last_light(255),
 639                 m_is_visible(false)
 640         {
 641                 if(gamedef == NULL)
 642                         ClientActiveObject::registerType(getType(), create);
 643         }
 644
 645         void initialize(const std::string &data)
 646         {
 647                 infostream<<"GenericCAO: Got init data"<<std::endl;
 648                 std::istringstream is(data, std::ios::binary);
 649                 // version
 650                 u8 version = readU8(is);
 651                 // check version
 652                 if(version != 0){
 653                         errorstream<<"GenericCAO: Unsupported init data version"
 654                                         <<std::endl;
 655                         return;
 656                 }
 657                 m_name = deSerializeString(is);
 658                 m_is_player = readU8(is);
 659                 m_id = readS16(is);
 660                 m_position = readV3F1000(is);
 661                 m_yaw = readF1000(is);
 662                 m_hp = readS16(is);
 663
 664                 int num_messages = readU8(is);
 665                 for(int i=0; i<num_messages; i++){
 666                         std::string message = deSerializeLongString(is);
 667                         processMessage(message);
 668                 }
 669
 670                 pos_translator.init(m_position);
 671                 updateNodePos();
 672
 673                 if(m_is_player){
 674                         Player *player = m_env->getPlayer(m_name.c_str());
 675                         if(player && player->isLocal()){
 676                                 m_is_local_player = true;
 677                         }
 678                 }
 679         }
 680
 681         ~GenericCAO()
 682         {
 683         }
 684
 685         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env)
 686         {
 687                 return new GenericCAO(gamedef, env);
 688         }
 689
 690         u8 getType() const
 691         {
 692                 return ACTIVEOBJECT_TYPE_GENERIC;
 693         }
 694         core::aabbox3d<f32>* getSelectionBox()
 695         {
 696                 if(!m_prop.is_visible || !m_is_visible || m_is_local_player)
 697                         return NULL;
 698                 return &m_selection_box;
 699         }
 700         v3f getPosition()
 701         {
 702                 return pos_translator.vect_show;
 703         }
 704
 705         scene::IMeshSceneNode *getMeshSceneNode()
 706         {
 707                 return m_meshnode;
 708         }
 709
 710         scene::IAnimatedMeshSceneNode *getAnimatedMeshSceneNode()
 711         {
 712                 return m_animated_meshnode;
 713         }
 714
 715         scene::IBillboardSceneNode *getSpriteSceneNode()
 716         {
 717                 return m_spritenode;
 718         }
 719
 720         bool isPlayer()
 721         {
 722                 return m_is_player;
 723         }
 724
 725         bool isLocalPlayer()
 726         {
 727                 return m_is_local_player;
 728         }
 729
 730         void removeFromScene()
 731         {
 732                 if(m_meshnode){
 733                         m_meshnode->remove();
 734                         m_meshnode = NULL;
 735                 }
 736                 if(m_animated_meshnode){
 737                         m_animated_meshnode->remove();
 738                         m_animated_meshnode = NULL;
 739                 }
 740                 if(m_spritenode){
 741                         m_spritenode->remove();
 742                         m_spritenode = NULL;
 743                 }
 744         }
 745
 746         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 747                         IrrlichtDevice *irr)
 748         {
 749                 m_smgr = smgr;
 750                 m_irr = irr;
 751
 752                 if(m_meshnode != NULL || m_animated_meshnode != NULL || m_spritenode != NULL)
 753                         return;
 754
 755                 m_visuals_expired = false;
 756
 757                 if(!m_prop.is_visible || m_is_local_player)
 758                         return;
 759
 760                 //video::IVideoDriver* driver = smgr->getVideoDriver();
 761
 762                 if(m_prop.visual == "sprite"){
 763                         infostream<<"GenericCAO::addToScene(): single_sprite"<<std::endl;
 764                         m_spritenode = smgr->addBillboardSceneNode(
 765                                         NULL, v2f(1, 1), v3f(0,0,0), -1);
 766                         m_spritenode->setMaterialTexture(0,
 767                                         tsrc->getTextureRaw("unknown_block.png"));
 768                         m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
 769                         m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 770                         m_spritenode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
 771                         m_spritenode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 772                         u8 li = m_last_light;
 773                         m_spritenode->setColor(video::SColor(255,li,li,li));
 774                         m_spritenode->setSize(m_prop.visual_size*BS);
 775                         {
 776                                 const float txs = 1.0 / 1;
 777                                 const float tys = 1.0 / 1;
 778                                 setBillboardTextureMatrix(m_spritenode,
 779                                                 txs, tys, 0, 0);
 780                         }
 781                 }
 782                 else if(m_prop.visual == "upright_sprite")
 783                 {
 784                         scene::SMesh *mesh = new scene::SMesh();
 785                         double dx = BS*m_prop.visual_size.X/2;
 786                         double dy = BS*m_prop.visual_size.Y/2;
 787                         { // Front
 788                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 789                         u8 li = m_last_light;
 790                         video::SColor c(255,li,li,li);
 791                         video::S3DVertex vertices[4] =
 792                         {
 793                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 794                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 795                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 796                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 797                         };
 798                         u16 indices[] = {0,1,2,2,3,0};
 799                         buf->append(vertices, 4, indices, 6);
 800                         // Set material
 801                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 802                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 803                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 804                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 805                         // Add to mesh
 806                         mesh->addMeshBuffer(buf);
 807                         buf->drop();
 808                         }
 809                         { // Back
 810                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 811                         u8 li = m_last_light;
 812                         video::SColor c(255,li,li,li);
 813                         video::S3DVertex vertices[4] =
 814                         {
 815                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 816                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 817                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 818                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 819                         };
 820                         u16 indices[] = {0,1,2,2,3,0};
 821                         buf->append(vertices, 4, indices, 6);
 822                         // Set material
 823                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 824                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 825                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 826                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 827                         // Add to mesh
 828                         mesh->addMeshBuffer(buf);
 829                         buf->drop();
 830                         }
 831                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 832                         mesh->drop();
 833                         // Set it to use the materials of the meshbuffers directly.
 834                         // This is needed for changing the texture in the future
 835                         m_meshnode->setReadOnlyMaterials(true);
 836                 }
 837                 else if(m_prop.visual == "cube"){
 838                         infostream<<"GenericCAO::addToScene(): cube"<<std::endl;
 839                         scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 840                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 841                         mesh->drop();
 842
 843                         m_meshnode->setScale(v3f(m_prop.visual_size.X,
 844                                         m_prop.visual_size.Y,
 845                                         m_prop.visual_size.X));
 846                         u8 li = m_last_light;
 847                         setMeshColor(m_meshnode->getMesh(), video::SColor(255,li,li,li));
 848                 }
 849                 else if(m_prop.visual == "mesh"){
 850                         infostream<<"GenericCAO::addToScene(): mesh"<<std::endl;
 851                         scene::IAnimatedMesh *mesh = smgr->getMesh(m_prop.mesh.c_str());
 852                         if(mesh)
 853                         {
 854                                 m_animated_meshnode = smgr->addAnimatedMeshSceneNode(mesh, NULL);
 855                                 m_animated_meshnode->animateJoints(); // Needed for some animations
 856                                 m_animated_meshnode->setScale(v3f(m_prop.visual_size.X,
 857                                                 m_prop.visual_size.Y,
 858                                                 m_prop.visual_size.X));
 859                                 u8 li = m_last_light;
 860                                 setMeshColor(m_animated_meshnode->getMesh(), video::SColor(255,li,li,li));
 861                         }
 862                         else
 863                                 errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;
 864                 }
 865                 else if(m_prop.visual == "wielditem"){
 866                         infostream<<"GenericCAO::addToScene(): node"<<std::endl;
 867                         infostream<<"textures: "<<m_prop.textures.size()<<std::endl;
 868                         if(m_prop.textures.size() >= 1){
 869                                 infostream<<"textures[0]: "<<m_prop.textures[0]<<std::endl;
 870                                 IItemDefManager *idef = m_gamedef->idef();
 871                                 ItemStack item(m_prop.textures[0], 1, 0, "", idef);
 872                                 scene::IMesh *item_mesh = item.getDefinition(idef).wield_mesh;
 873
 874                                 // Copy mesh to be able to set unique vertex colors
 875                                 scene::IMeshManipulator *manip =
 876                                                 irr->getVideoDriver()->getMeshManipulator();
 877                                 scene::IMesh *mesh = manip->createMeshUniquePrimitives(item_mesh);
 878
 879                                 m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 880                                 mesh->drop();
 881
 882                                 m_meshnode->setScale(v3f(m_prop.visual_size.X/2,
 883                                                 m_prop.visual_size.Y/2,
 884                                                 m_prop.visual_size.X/2));
 885                                 u8 li = m_last_light;
 886                                 setMeshColor(m_meshnode->getMesh(), video::SColor(255,li,li,li));
 887                         }
 888                 } else {
 889                         infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 890                                         <<"\" not supported"<<std::endl;
 891                 }
 892                 updateTextures("");
 893
 894                 scene::ISceneNode *node = NULL;
 895                 if(m_spritenode)
 896                         node = m_spritenode;
 897                 else if(m_animated_meshnode)
 898                         node = m_animated_meshnode;
 899                 else if(m_meshnode)
 900                         node = m_meshnode;
 901                 if(node && m_is_player && !m_is_local_player){
 902                         // Add a text node for showing the name
 903                         gui::IGUIEnvironment* gui = irr->getGUIEnvironment();
 904                         std::wstring wname = narrow_to_wide(m_name);
 905                         m_textnode = smgr->addTextSceneNode(gui->getBuiltInFont(),
 906                                         wname.c_str(), video::SColor(255,255,255,255), node);
 907                         m_textnode->setPosition(v3f(0, BS*1.1, 0));
 908                 }
 909
 910                 updateNodePos();
 911         }
 912
 913         void expireVisuals()
 914         {
 915                 m_visuals_expired = true;
 916         }
 917
 918         void updateLight(u8 light_at_pos)
 919         {
 920                 // Objects attached to the local player should always be hidden
 921                 if(m_attachment_parent != NULL && m_attachment_parent->isLocalPlayer())
 922                         m_is_visible = false;
 923                 else
 924                         m_is_visible = (m_hp != 0);
 925                 u8 li = decode_light(light_at_pos);
 926
 927                 if(li != m_last_light){
 928                         m_last_light = li;
 929                         video::SColor color(255,li,li,li);
 930                         if(m_meshnode){
 931                                 setMeshColor(m_meshnode->getMesh(), color);
 932                                 m_meshnode->setVisible(m_is_visible);
 933                         }
 934                         if(m_animated_meshnode){
 935                                 setMeshColor(m_animated_meshnode->getMesh(), color);
 936                                 m_animated_meshnode->setVisible(m_is_visible);
 937                         }
 938                         if(m_spritenode){
 939                                 m_spritenode->setColor(color);
 940                                 m_spritenode->setVisible(m_is_visible);
 941                         }
 942                 }
 943         }
 944
 945         v3s16 getLightPosition()
 946         {
 947                 return floatToInt(m_position, BS);
 948         }
 949
 950         void updateNodePos()
 951         {
 952                 if(m_attachment_parent != NULL)
 953                         return;
 954
 955                 if(m_meshnode){
 956                         m_meshnode->setPosition(pos_translator.vect_show);
 957                         v3f rot = m_meshnode->getRotation();
 958                         rot.Y = -m_yaw;
 959                         m_meshnode->setRotation(rot);
 960                 }
 961                 if(m_animated_meshnode){
 962                         m_animated_meshnode->setPosition(pos_translator.vect_show);
 963                         v3f rot = m_animated_meshnode->getRotation();
 964                         rot.Y = -m_yaw;
 965                         m_animated_meshnode->setRotation(rot);
 966                 }
 967                 if(m_spritenode){
 968                         m_spritenode->setPosition(pos_translator.vect_show);
 969                 }
 970         }
 971
 972         void step(float dtime, ClientEnvironment *env)
 973         {
 974                 v3f lastpos = pos_translator.vect_show;
 975
 976                 if(m_visuals_expired && m_smgr && m_irr){
 977                         m_visuals_expired = false;
 978                         removeFromScene();
 979                         addToScene(m_smgr, m_gamedef->tsrc(), m_irr);
 980                         updateAnimations();
 981                         updateBonePosRot();
 982                         updateAttachments();
 983                 }
 984
 985                 if(m_attachment_parent == NULL) // Attachments should be glued to their parent by Irrlicht
 986                 {
 987                         if(m_prop.physical){
 988                                 core::aabbox3d<f32> box = m_prop.collisionbox;
 989                                 box.MinEdge *= BS;
 990                                 box.MaxEdge *= BS;
 991                                 collisionMoveResult moveresult;
 992                                 f32 pos_max_d = BS*0.125; // Distance per iteration
 993                                 f32 stepheight = 0;
 994                                 v3f p_pos = m_position;
 995                                 v3f p_velocity = m_velocity;
 996                                 v3f p_acceleration = m_acceleration;
 997                                 IGameDef *gamedef = env->getGameDef();
 998                                 moveresult = collisionMoveSimple(&env->getMap(), gamedef,
 999                                                 pos_max_d, box, stepheight, dtime,
1000                                                 p_pos, p_velocity, p_acceleration);
1001                                 // Apply results
1002                                 m_position = p_pos;
1003                                 m_velocity = p_velocity;
1004                                 m_acceleration = p_acceleration;
1005
1006                                 bool is_end_position = moveresult.collides;
1007                                 pos_translator.update(m_position, is_end_position, dtime);
1008                                 pos_translator.translate(dtime);
1009                                 updateNodePos();
1010                         } else {
1011                                 m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
1012                                 m_velocity += dtime * m_acceleration;
1013                                 pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
1014                                 pos_translator.translate(dtime);
1015                                 updateNodePos();
1016                         }
1017
1018                         float moved = lastpos.getDistanceFrom(pos_translator.vect_show);
1019                         m_step_distance_counter += moved;
1020                         if(m_step_distance_counter > 1.5*BS){
1021                                 m_step_distance_counter = 0;
1022                                 if(!m_is_local_player && m_prop.makes_footstep_sound){
1023                                         INodeDefManager *ndef = m_gamedef->ndef();
1024                                         v3s16 p = floatToInt(getPosition() + v3f(0,
1025                                                         (m_prop.collisionbox.MinEdge.Y-0.5)*BS, 0), BS);
1026                                         MapNode n = m_env->getMap().getNodeNoEx(p);
1027                                         SimpleSoundSpec spec = ndef->get(n).sound_footstep;
1028                                         m_gamedef->sound()->playSoundAt(spec, false, getPosition());
1029                                 }
1030                         }
1031                 }
1032
1033                 m_anim_timer += dtime;
1034                 if(m_anim_timer >= m_anim_framelength){
1035                         m_anim_timer -= m_anim_framelength;
1036                         m_anim_frame++;
1037                         if(m_anim_frame >= m_anim_num_frames)
1038                                 m_anim_frame = 0;
1039                 }
1040
1041                 updateTexturePos();
1042
1043                 if(m_reset_textures_timer >= 0){
1044                         m_reset_textures_timer -= dtime;
1045                         if(m_reset_textures_timer <= 0){
1046                                 m_reset_textures_timer = -1;
1047                                 updateTextures("");
1048                         }
1049                 }
1050                 if(fabs(m_prop.automatic_rotate) > 0.001){
1051                         m_yaw += dtime * m_prop.automatic_rotate * 180 / M_PI;
1052                         updateNodePos();
1053                 }
1054
1055                 // REMAINING ATTACHMENT ISSUES:
1056                 // Absolute Position of attachments is printed differently here than what it's set to in the SetAttachment function.
1057                 // Apparently here it prints the origin of the parent, but ignores the offset it was actually set to.
1058
1059                 //if(m_animated_meshnode != NULL && m_attachment_parent != NULL)
1060                 //      errorstream<<"Attachment position, step: "<<m_animated_meshnode->getAbsolutePosition().X<<","<<m_animated_meshnode->getAbsolutePosition().Y<<","<<m_animated_meshnode->getAbsolutePosition().Z<<std::endl;
1061         }
1062
1063         void updateTexturePos()
1064         {
1065                 if(m_spritenode){
1066                         scene::ICameraSceneNode* camera =
1067                                         m_spritenode->getSceneManager()->getActiveCamera();
1068                         if(!camera)
1069                                 return;
1070                         v3f cam_to_entity = m_spritenode->getAbsolutePosition()
1071                                         - camera->getAbsolutePosition();
1072                         cam_to_entity.normalize();
1073
1074                         int row = m_tx_basepos.Y;
1075                         int col = m_tx_basepos.X;
1076
1077                         if(m_tx_select_horiz_by_yawpitch)
1078                         {
1079                                 if(cam_to_entity.Y > 0.75)
1080                                         col += 5;
1081                                 else if(cam_to_entity.Y < -0.75)
1082                                         col += 4;
1083                                 else{
1084                                         float mob_dir = atan2(cam_to_entity.Z, cam_to_entity.X) / M_PI * 180.;
1085                                         float dir = mob_dir - m_yaw;
1086                                         dir = wrapDegrees_180(dir);
1087                                         //infostream<<"id="<<m_id<<" dir="<<dir<<std::endl;
1088                                         if(fabs(wrapDegrees_180(dir - 0)) <= 45.1)
1089                                                 col += 2;
1090                                         else if(fabs(wrapDegrees_180(dir - 90)) <= 45.1)
1091                                                 col += 3;
1092                                         else if(fabs(wrapDegrees_180(dir - 180)) <= 45.1)
1093                                                 col += 0;
1094                                         else if(fabs(wrapDegrees_180(dir + 90)) <= 45.1)
1095                                                 col += 1;
1096                                         else
1097                                                 col += 4;
1098                                 }
1099                         }
1100
1101                         // Animation goes downwards
1102                         row += m_anim_frame;
1103
1104                         float txs = m_tx_size.X;
1105                         float tys = m_tx_size.Y;
1106                         setBillboardTextureMatrix(m_spritenode,
1107                                         txs, tys, col, row);
1108                 }
1109         }
1110
1111         void updateTextures(const std::string &mod)
1112         {
1113                 ITextureSource *tsrc = m_gamedef->tsrc();
1114
1115                 if(m_spritenode)
1116                 {
1117                         if(m_prop.visual == "sprite")
1118                         {
1119                                 std::string texturestring = "unknown_block.png";
1120                                 if(m_prop.textures.size() >= 1)
1121                                         texturestring = m_prop.textures[0];
1122                                 texturestring += mod;
1123                                 m_spritenode->setMaterialTexture(0,
1124                                                 tsrc->getTextureRaw(texturestring));
1125
1126                                 // Does not work yet with the current lighting settings
1127                                 m_meshnode->getMaterial(0).AmbientColor = m_prop.colors[0];
1128                                 m_meshnode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1129                         }
1130                 }
1131                 if(m_animated_meshnode)
1132                 {
1133                         if(m_prop.visual == "mesh")
1134                         {
1135                                 for (u32 i = 0; i < m_prop.textures.size(); ++i)
1136                                 {
1137                                         std::string texturestring = m_prop.textures[i];
1138                                         if(texturestring == "")
1139                                                 continue; // Empty texture string means don't modify that material
1140                                         texturestring += mod;
1141                                         video::ITexture* texture = tsrc->getTextureRaw(texturestring);
1142                                         if(!texture)
1143                                         {
1144                                                 errorstream<<"GenericCAO::updateTextures(): Could not load texture "<<texturestring<<std::endl;
1145                                                 continue;
1146                                         }
1147
1148                                         // Set material flags and texture
1149                                         m_animated_meshnode->setMaterialTexture(i, texture);
1150                                         video::SMaterial& material = m_animated_meshnode->getMaterial(i);
1151                                         material.setFlag(video::EMF_LIGHTING, false);
1152                                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
1153                                 }
1154                                 for (u32 i = 0; i < m_prop.colors.size(); ++i)
1155                                 {
1156                                         // Does not work yet with the current lighting settings
1157                                         m_animated_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1158                                         m_animated_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1159                                 }
1160                         }
1161                 }
1162                 if(m_meshnode)
1163                 {
1164                         if(m_prop.visual == "cube")
1165                         {
1166                                 for (u32 i = 0; i < 6; ++i)
1167                                 {
1168                                         std::string texturestring = "unknown_block.png";
1169                                         if(m_prop.textures.size() > i)
1170                                                 texturestring = m_prop.textures[i];
1171                                         texturestring += mod;
1172                                         AtlasPointer ap = tsrc->getTexture(texturestring);
1173
1174                                         // Get the tile texture and atlas transformation
1175                                         video::ITexture* atlas = ap.atlas;
1176                                         v2f pos = ap.pos;
1177                                         v2f size = ap.size;
1178
1179                                         // Set material flags and texture
1180                                         video::SMaterial& material = m_meshnode->getMaterial(i);
1181                                         material.setFlag(video::EMF_LIGHTING, false);
1182                                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
1183                                         material.setTexture(0, atlas);
1184                                         material.getTextureMatrix(0).setTextureTranslate(pos.X, pos.Y);
1185                                         material.getTextureMatrix(0).setTextureScale(size.X, size.Y);
1186
1187                                         // Does not work yet with the current lighting settings
1188                                         m_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1189                                         m_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1190                                 }
1191                         }
1192                         else if(m_prop.visual == "upright_sprite")
1193                         {
1194                                 scene::IMesh *mesh = m_meshnode->getMesh();
1195                                 {
1196                                         std::string tname = "unknown_object.png";
1197                                         if(m_prop.textures.size() >= 1)
1198                                                 tname = m_prop.textures[0];
1199                                         tname += mod;
1200                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1201                                         buf->getMaterial().setTexture(0,
1202                                                         tsrc->getTextureRaw(tname));
1203
1204                                         // Does not work yet with the current lighting settings
1205                                         m_meshnode->getMaterial(0).AmbientColor = m_prop.colors[0];
1206                                         m_meshnode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1207                                 }
1208                                 {
1209                                         std::string tname = "unknown_object.png";
1210                                         if(m_prop.textures.size() >= 2)
1211                                                 tname = m_prop.textures[1];
1212                                         else if(m_prop.textures.size() >= 1)
1213                                                 tname = m_prop.textures[0];
1214                                         tname += mod;
1215                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1216                                         buf->getMaterial().setTexture(0,
1217                                                         tsrc->getTextureRaw(tname));
1218
1219                                         // Does not work yet with the current lighting settings
1220                                         m_meshnode->getMaterial(1).AmbientColor = m_prop.colors[1];
1221                                         m_meshnode->getMaterial(1).DiffuseColor = m_prop.colors[1];
1222                                 }
1223                         }
1224                 }
1225         }
1226
1227         void updateAnimations()
1228         {
1229                 if(!m_animated_meshnode)
1230                         return;
1231
1232                 m_animated_meshnode->setFrameLoop((int)m_frames.X, (int)m_frames.Y);
1233                 m_animated_meshnode->setAnimationSpeed(m_frame_speed);
1234                 m_animated_meshnode->setTransitionTime(m_frame_blend);
1235         }
1236
1237         void updateBonePosRot()
1238         {
1239                 if(m_bone_posrot.size() > 0)
1240                 {
1241                         m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
1242                         for(std::map<std::string, core::vector2d<v3f> >::const_iterator ii = m_bone_posrot.begin(); ii != m_bone_posrot.end(); ++ii){
1243                                 std::string bone_name = (*ii).first;
1244                                 v3f bone_pos = (*ii).second.X;
1245                                 v3f bone_rot = (*ii).second.Y;
1246                                 irr::scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
1247                                 bone->setPosition(bone_pos);
1248                                 bone->setRotation(bone_rot);
1249                         }
1250                 }
1251         }
1252
1253         void updateAttachments()
1254         {
1255                 // REMAINING ATTACHMENT ISSUES:
1256                 // We get to this function when the object is an attachment that needs to
1257                 // be attached to its parent. If a bone is set we attach it to that skeletal
1258                 // bone, otherwise just to the object's origin. Attachments should not copy parent
1259                 // position as that's laggy... instead the Irrlicht function(s) to attach should
1260                 // be used. If the parent object is NULL that means this object should be detached.
1261                 // This function is only called whenever a GENERIC_CMD_SET_ATTACHMENT message is received.
1262
1263                 // We already attach our entity on the server too (copy position). Reason we attach
1264                 // to the client as well is first of all lag. The server sends the position
1265                 // of the child separately than that of the parent, so even on localhost
1266                 // you'd see the child lagging behind. Models are also client-side, so this is
1267                 // needed to read bone data and attach to joints.
1268
1269                 // Functions:
1270                 // - m_attachment_parent is ClientActiveObject* for the parent entity.
1271                 // - m_attachment_bone is std::string of the bone, "" means none.
1272                 // - m_attachment_position is v3f and represents the position offset of the attachment.
1273                 // - m_attachment_rotation is v3f and represents the rotation offset of the attachment.
1274
1275                 // Implementation information:
1276                 // From what I know, we need to get the AnimatedMeshSceneNode of m_attachment_parent then
1277                 // use parent_node->addChild(m_animated_meshnode) for position attachment. For skeletal
1278                 // attachment I don't know yet. Same must be used to detach when a NULL parent is received.
1279
1280                 //Useful links:
1281                 // http://irrlicht.sourceforge.net/forum/viewtopic.php?t=7514
1282                 // http://www.irrlicht3d.org/wiki/index.php?n=Main.HowToUseTheNewAnimationSystem
1283                 // http://gamedev.stackexchange.com/questions/27363/finding-the-endpoint-of-a-named-bone-in-irrlicht
1284                 // Irrlicht documentation: http://irrlicht.sourceforge.net/docu/
1285
1286                 if(m_attachment_parent == NULL || m_attachment_parent->isLocalPlayer()) // Detach
1287                 {
1288                         if(m_meshnode)
1289                         {
1290                                 v3f old_position = m_meshnode->getAbsolutePosition();
1291                                 v3f old_rotation = m_meshnode->getRotation();
1292                                 m_meshnode->setParent(m_smgr->getRootSceneNode());
1293                                 m_meshnode->setPosition(old_position);
1294                                 m_meshnode->setRotation(old_rotation);
1295                                 m_meshnode->updateAbsolutePosition();
1296                         }
1297                         if(m_animated_meshnode)
1298                         {
1299                                 v3f old_position = m_animated_meshnode->getAbsolutePosition();
1300                                 v3f old_rotation = m_animated_meshnode->getRotation();
1301                                 m_animated_meshnode->setParent(m_smgr->getRootSceneNode());
1302                                 m_animated_meshnode->setPosition(old_position);
1303                                 m_animated_meshnode->setRotation(old_rotation);
1304                                 m_animated_meshnode->updateAbsolutePosition();
1305                         }
1306                         if(m_spritenode)
1307                         {
1308                                 v3f old_position = m_spritenode->getAbsolutePosition();
1309                                 v3f old_rotation = m_spritenode->getRotation();
1310                                 m_spritenode->setParent(m_smgr->getRootSceneNode());
1311                                 m_spritenode->setPosition(old_position);
1312                                 m_spritenode->setRotation(old_rotation);
1313                                 m_spritenode->updateAbsolutePosition();
1314                         }
1315                 }
1316                 else // Attach
1317                 {
1318                         // REMAINING ATTACHMENT ISSUES:
1319                         // The code below should cause the child to get attached, but for some reason it's not working
1320                         // A debug print confirms both position and absolute position are set accordingly, but the object still doesn't show
1321                         // Position and Absolute Position were tested to be set properly here
1322
1323                         scene::IMeshSceneNode *parent_mesh = NULL;
1324                         if(m_attachment_parent->getMeshSceneNode())
1325                                 parent_mesh = m_attachment_parent->getMeshSceneNode();
1326                         scene::IAnimatedMeshSceneNode *parent_animated_mesh = NULL;
1327                         if(m_attachment_parent->getAnimatedMeshSceneNode())
1328                                 parent_animated_mesh = m_attachment_parent->getAnimatedMeshSceneNode();
1329                         scene::IBillboardSceneNode *parent_sprite = NULL;
1330                         if(m_attachment_parent->getSpriteSceneNode())
1331                                 parent_sprite = m_attachment_parent->getSpriteSceneNode();
1332
1333                         scene::IBoneSceneNode *parent_bone = NULL;
1334                         if(parent_animated_mesh && m_attachment_bone != "")
1335                                 parent_bone = parent_animated_mesh->getJointNode(m_attachment_bone.c_str());
1336
1337                         // TODO: Perhaps use polymorphism here to save code duplication
1338                         if(m_meshnode){
1339                                 if(parent_bone){
1340                                         m_meshnode->setParent(parent_bone);
1341                                         m_meshnode->setPosition(m_attachment_position);
1342                                         m_meshnode->setRotation(m_attachment_rotation);
1343                                         m_meshnode->updateAbsolutePosition();
1344                                 }
1345                                 else
1346                                 {
1347                                         if(parent_mesh){
1348                                                 m_meshnode->setParent(parent_mesh);
1349                                                 m_meshnode->setPosition(m_attachment_position);
1350                                                 m_meshnode->setRotation(m_attachment_rotation);
1351                                                 m_meshnode->updateAbsolutePosition();
1352                                         }
1353                                         else if(parent_animated_mesh){
1354                                                 m_meshnode->setParent(parent_animated_mesh);
1355                                                 m_meshnode->setPosition(m_attachment_position);
1356                                                 m_meshnode->setRotation(m_attachment_rotation);
1357                                                 m_meshnode->updateAbsolutePosition();
1358                                         }
1359                                         else if(parent_sprite){
1360                                                 m_meshnode->setParent(parent_sprite);
1361                                                 m_meshnode->setPosition(m_attachment_position);
1362                                                 m_meshnode->setRotation(m_attachment_rotation);
1363                                                 m_meshnode->updateAbsolutePosition();
1364                                         }
1365                                 }
1366                         }
1367                         if(m_animated_meshnode){
1368                                 if(parent_bone){
1369                                         m_animated_meshnode->setParent(parent_bone);
1370                                         m_animated_meshnode->setPosition(m_attachment_position);
1371                                         m_animated_meshnode->setRotation(m_attachment_rotation);
1372                                         m_animated_meshnode->updateAbsolutePosition();
1373                                 }
1374                                 else
1375                                 {
1376                                         if(parent_mesh){
1377                                                 m_animated_meshnode->setParent(parent_mesh);
1378                                                 m_animated_meshnode->setPosition(m_attachment_position);
1379                                                 m_animated_meshnode->setRotation(m_attachment_rotation);
1380                                                 m_animated_meshnode->updateAbsolutePosition();
1381                                         }
1382                                         else if(parent_animated_mesh){
1383                                                 m_animated_meshnode->setParent(parent_animated_mesh);
1384                                                 m_animated_meshnode->setPosition(m_attachment_position);
1385                                                 m_animated_meshnode->setRotation(m_attachment_rotation);
1386                                                 m_animated_meshnode->updateAbsolutePosition();
1387                                         }
1388                                         else if(parent_sprite){
1389                                                 m_animated_meshnode->setParent(parent_sprite);
1390                                                 m_animated_meshnode->setPosition(m_attachment_position);
1391                                                 m_animated_meshnode->setRotation(m_attachment_rotation);
1392                                                 m_animated_meshnode->updateAbsolutePosition();
1393                                         }
1394                                 }
1395                         }
1396                         if(m_spritenode){
1397                                 if(parent_bone){
1398                                         m_spritenode->setParent(parent_bone);
1399                                         m_spritenode->setPosition(m_attachment_position);
1400                                         m_spritenode->setRotation(m_attachment_rotation);
1401                                         m_spritenode->updateAbsolutePosition();
1402                                 }
1403                                 else
1404                                 {
1405                                         if(parent_mesh){
1406                                                 m_spritenode->setParent(parent_mesh);
1407                                                 m_spritenode->setPosition(m_attachment_position);
1408                                                 m_spritenode->setRotation(m_attachment_rotation);
1409                                                 m_spritenode->updateAbsolutePosition();
1410                                         }
1411                                         else if(parent_animated_mesh){
1412                                                 m_spritenode->setParent(parent_animated_mesh);
1413                                                 m_spritenode->setPosition(m_attachment_position);
1414                                                 m_spritenode->setRotation(m_attachment_rotation);
1415                                                 m_spritenode->updateAbsolutePosition();
1416                                         }
1417                                         else if(parent_sprite){
1418                                                 m_spritenode->setParent(parent_sprite);
1419                                                 m_spritenode->setPosition(m_attachment_position);
1420                                                 m_spritenode->setRotation(m_attachment_rotation);
1421                                                 m_spritenode->updateAbsolutePosition();
1422                                         }
1423                                 }
1424                         }
1425                 }
1426         }
1427
1428         void processMessage(const std::string &data)
1429         {
1430                 //infostream<<"GenericCAO: Got message"<<std::endl;
1431                 std::istringstream is(data, std::ios::binary);
1432                 // command
1433                 u8 cmd = readU8(is);
1434                 if(cmd == GENERIC_CMD_SET_PROPERTIES)
1435                 {
1436                         m_prop = gob_read_set_properties(is);
1437
1438                         m_selection_box = m_prop.collisionbox;
1439                         m_selection_box.MinEdge *= BS;
1440                         m_selection_box.MaxEdge *= BS;
1441
1442                         m_tx_size.X = 1.0 / m_prop.spritediv.X;
1443                         m_tx_size.Y = 1.0 / m_prop.spritediv.Y;
1444
1445                         if(!m_initial_tx_basepos_set){
1446                                 m_initial_tx_basepos_set = true;
1447                                 m_tx_basepos = m_prop.initial_sprite_basepos;
1448                         }
1449
1450                         expireVisuals();
1451                 }
1452                 else if(cmd == GENERIC_CMD_UPDATE_POSITION)
1453                 {
1454                         // Not sent by the server if the object is an attachment
1455
1456                         m_position = readV3F1000(is);
1457                         m_velocity = readV3F1000(is);
1458                         m_acceleration = readV3F1000(is);
1459                         if(fabs(m_prop.automatic_rotate) < 0.001)
1460                                 m_yaw = readF1000(is);
1461                         bool do_interpolate = readU8(is);
1462                         bool is_end_position = readU8(is);
1463                         float update_interval = readF1000(is);
1464
1465                         // Place us a bit higher if we're physical, to not sink into
1466                         // the ground due to sucky collision detection...
1467                         if(m_prop.physical)
1468                                 m_position += v3f(0,0.002,0);
1469
1470                         if(do_interpolate){
1471                                 if(!m_prop.physical)
1472                                         pos_translator.update(m_position, is_end_position, update_interval);
1473                         } else {
1474                                 pos_translator.init(m_position);
1475                         }
1476                         updateNodePos();
1477                 }
1478                 else if(cmd == GENERIC_CMD_SET_TEXTURE_MOD)
1479                 {
1480                         std::string mod = deSerializeString(is);
1481                         updateTextures(mod);
1482                 }
1483                 else if(cmd == GENERIC_CMD_SET_SPRITE)
1484                 {
1485                         v2s16 p = readV2S16(is);
1486                         int num_frames = readU16(is);
1487                         float framelength = readF1000(is);
1488                         bool select_horiz_by_yawpitch = readU8(is);
1489
1490                         m_tx_basepos = p;
1491                         m_anim_num_frames = num_frames;
1492                         m_anim_framelength = framelength;
1493                         m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1494
1495                         updateTexturePos();
1496                 }
1497                 else if(cmd == GENERIC_CMD_SET_ANIMATIONS)
1498                 {
1499                         m_frames = readV2F1000(is);
1500                         m_frame_speed = readF1000(is);
1501                         m_frame_blend = readF1000(is);
1502
1503                         expireVisuals(); // Automatically calls the proper function next
1504                 }
1505                 else if(cmd == GENERIC_CMD_SET_BONE_POSROT)
1506                 {
1507                         std::string bone = deSerializeString(is);
1508                         v3f position = readV3F1000(is);
1509                         v3f rotation = readV3F1000(is);
1510                         m_bone_posrot[bone] = core::vector2d<v3f>(position, rotation);
1511
1512                         expireVisuals(); // Automatically calls the proper function next
1513                 }
1514                 else if(cmd == GENERIC_CMD_SET_ATTACHMENT)
1515                 {
1516                         int parent_id = readS16(is);
1517                         ClientActiveObject *obj = m_env->getActiveObject(parent_id);
1518                         if(!parent_id || !obj)
1519                                 obj = NULL;
1520                         m_attachment_parent = obj;
1521                         m_attachment_bone = deSerializeString(is);
1522                         m_attachment_position = readV3F1000(is);
1523                         m_attachment_rotation = readV3F1000(is);
1524
1525                         expireVisuals(); // Automatically calls the proper function next
1526                 }
1527                 else if(cmd == GENERIC_CMD_PUNCHED)
1528                 {
1529                         /*s16 damage =*/ readS16(is);
1530                         s16 result_hp = readS16(is);
1531
1532                         m_hp = result_hp;
1533                 }
1534                 else if(cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS)
1535                 {
1536                         m_armor_groups.clear();
1537                         int armor_groups_size = readU16(is);
1538                         for(int i=0; i<armor_groups_size; i++){
1539                                 std::string name = deSerializeString(is);
1540                                 int rating = readS16(is);
1541                                 m_armor_groups[name] = rating;
1542                         }
1543                 }
1544         }
1545
1546         bool directReportPunch(v3f dir, const ItemStack *punchitem=NULL,
1547                         float time_from_last_punch=1000000)
1548         {
1549                 assert(punchitem);
1550                 const ToolCapabilities *toolcap =
1551                                 &punchitem->getToolCapabilities(m_gamedef->idef());
1552                 PunchDamageResult result = getPunchDamage(
1553                                 m_armor_groups,
1554                                 toolcap,
1555                                 punchitem,
1556                                 time_from_last_punch);
1557
1558                 if(result.did_punch && result.damage != 0)
1559                 {
1560                         if(result.damage < m_hp){
1561                                 m_hp -= result.damage;
1562                         } else {
1563                                 m_hp = 0;
1564                                 // TODO: Execute defined fast response
1565                                 // As there is no definition, make a smoke puff
1566                                 ClientSimpleObject *simple = createSmokePuff(
1567                                                 m_smgr, m_env, m_position,
1568                                                 m_prop.visual_size * BS);
1569                                 m_env->addSimpleObject(simple);
1570                         }
1571                         // TODO: Execute defined fast response
1572                         // Flashing shall suffice as there is no definition
1573                         m_reset_textures_timer = 0.05;
1574                         if(result.damage >= 2)
1575                                 m_reset_textures_timer += 0.05 * result.damage;
1576                         updateTextures("^[brighten");
1577                 }
1578
1579                 return false;
1580         }
1581
1582         std::string debugInfoText()
1583         {
1584                 std::ostringstream os(std::ios::binary);
1585                 os<<"GenericCAO hp="<<m_hp<<"\n";
1586                 os<<"armor={";
1587                 for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1588                                 i != m_armor_groups.end(); i++){
1589                         os<<i->first<<"="<<i->second<<", ";
1590                 }
1591                 os<<"}";
1592                 return os.str();
1593         }
1594 };
1595
1596 // Prototype
1597 GenericCAO proto_GenericCAO(NULL, NULL);
1598
1599