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; // determined locally
 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_attacmhent_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
 598 public:
 599         GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
 600                 ClientActiveObject(0, gamedef, env),
 601                 //
 602                 m_is_player(false),
 603                 m_is_local_player(false),
 604                 m_id(0),
 605                 //
 606                 m_smgr(NULL),
 607                 m_irr(NULL),
 608                 m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
 609                 m_meshnode(NULL),
 610                 m_animated_meshnode(NULL),
 611                 m_spritenode(NULL),
 612                 m_textnode(NULL),
 613                 m_position(v3f(0,10*BS,0)),
 614                 m_velocity(v3f(0,0,0)),
 615                 m_acceleration(v3f(0,0,0)),
 616                 m_yaw(0),
 617                 m_hp(1),
 618                 m_tx_size(1,1),
 619                 m_tx_basepos(0,0),
 620                 m_initial_tx_basepos_set(false),
 621                 m_tx_select_horiz_by_yawpitch(false),
 622                 m_frames(v2f(0,0)),
 623                 m_frame_speed(15),
 624                 m_frame_blend(0),
 625                 // Nothing to do for m_bone_posrot
 626                 m_attachment_parent(NULL),
 627                 m_attachment_bone(""),
 628                 m_attacmhent_position(v3f(0,0,0)),
 629                 m_attachment_rotation(v3f(0,0,0)),
 630                 m_anim_frame(0),
 631                 m_anim_num_frames(1),
 632                 m_anim_framelength(0.2),
 633                 m_anim_timer(0),
 634                 m_reset_textures_timer(-1),
 635                 m_visuals_expired(false),
 636                 m_step_distance_counter(0),
 637                 m_last_light(255)
 638         {
 639                 if(gamedef == NULL)
 640                         ClientActiveObject::registerType(getType(), create);
 641         }
 642
 643         void initialize(const std::string &data)
 644         {
 645                 infostream<<"GenericCAO: Got init data"<<std::endl;
 646                 std::istringstream is(data, std::ios::binary);
 647                 // version
 648                 u8 version = readU8(is);
 649                 // check version
 650                 if(version != 0){
 651                         errorstream<<"GenericCAO: Unsupported init data version"
 652                                         <<std::endl;
 653                         return;
 654                 }
 655                 m_name = deSerializeString(is);
 656                 m_is_player = readU8(is);
 657                 m_id = readS16(is);
 658                 m_position = readV3F1000(is);
 659                 m_yaw = readF1000(is);
 660                 m_hp = readS16(is);
 661
 662                 int num_messages = readU8(is);
 663                 for(int i=0; i<num_messages; i++){
 664                         std::string message = deSerializeLongString(is);
 665                         processMessage(message);
 666                 }
 667
 668                 pos_translator.init(m_position);
 669                 updateNodePos();
 670
 671                 if(m_is_player){
 672                         Player *player = m_env->getPlayer(m_name.c_str());
 673                         if(player && player->isLocal()){
 674                                 m_is_local_player = true;
 675                         }
 676                 }
 677         }
 678
 679         ~GenericCAO()
 680         {
 681         }
 682
 683         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env)
 684         {
 685                 return new GenericCAO(gamedef, env);
 686         }
 687
 688         u8 getType() const
 689         {
 690                 return ACTIVEOBJECT_TYPE_GENERIC;
 691         }
 692         core::aabbox3d<f32>* getSelectionBox()
 693         {
 694                 if(!m_prop.is_visible || m_is_local_player)
 695                         return NULL;
 696                 return &m_selection_box;
 697         }
 698         v3f getPosition()
 699         {
 700                 return pos_translator.vect_show;
 701         }
 702
 703         void removeFromScene()
 704         {
 705                 if(m_meshnode){
 706                         m_meshnode->remove();
 707                         m_meshnode = NULL;
 708                 }
 709                 if(m_animated_meshnode){
 710                         m_animated_meshnode->remove();
 711                         m_animated_meshnode = NULL;
 712                 }
 713                 if(m_spritenode){
 714                         m_spritenode->remove();
 715                         m_spritenode = NULL;
 716                 }
 717         }
 718
 719         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 720                         IrrlichtDevice *irr)
 721         {
 722                 m_smgr = smgr;
 723                 m_irr = irr;
 724
 725                 if(m_meshnode != NULL || m_animated_meshnode != NULL || m_spritenode != NULL)
 726                         return;
 727
 728                 m_visuals_expired = false;
 729
 730                 if(!m_prop.is_visible || m_is_local_player)
 731                         return;
 732
 733                 //video::IVideoDriver* driver = smgr->getVideoDriver();
 734
 735                 if(m_prop.visual == "sprite"){
 736                         infostream<<"GenericCAO::addToScene(): single_sprite"<<std::endl;
 737                         m_spritenode = smgr->addBillboardSceneNode(
 738                                         NULL, v2f(1, 1), v3f(0,0,0), -1);
 739                         m_spritenode->setMaterialTexture(0,
 740                                         tsrc->getTextureRaw("unknown_block.png"));
 741                         m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
 742                         m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 743                         m_spritenode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
 744                         m_spritenode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 745                         u8 li = m_last_light;
 746                         m_spritenode->setColor(video::SColor(255,li,li,li));
 747                         m_spritenode->setSize(m_prop.visual_size*BS);
 748                         {
 749                                 const float txs = 1.0 / 1;
 750                                 const float tys = 1.0 / 1;
 751                                 setBillboardTextureMatrix(m_spritenode,
 752                                                 txs, tys, 0, 0);
 753                         }
 754                 }
 755                 else if(m_prop.visual == "upright_sprite")
 756                 {
 757                         scene::SMesh *mesh = new scene::SMesh();
 758                         double dx = BS*m_prop.visual_size.X/2;
 759                         double dy = BS*m_prop.visual_size.Y/2;
 760                         { // Front
 761                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 762                         u8 li = m_last_light;
 763                         video::SColor c(255,li,li,li);
 764                         video::S3DVertex vertices[4] =
 765                         {
 766                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 767                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 768                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 769                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 770                         };
 771                         u16 indices[] = {0,1,2,2,3,0};
 772                         buf->append(vertices, 4, indices, 6);
 773                         // Set material
 774                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 775                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 776                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 777                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 778                         // Add to mesh
 779                         mesh->addMeshBuffer(buf);
 780                         buf->drop();
 781                         }
 782                         { // Back
 783                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 784                         u8 li = m_last_light;
 785                         video::SColor c(255,li,li,li);
 786                         video::S3DVertex vertices[4] =
 787                         {
 788                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 789                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 790                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 791                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 792                         };
 793                         u16 indices[] = {0,1,2,2,3,0};
 794                         buf->append(vertices, 4, indices, 6);
 795                         // Set material
 796                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 797                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 798                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 799                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 800                         // Add to mesh
 801                         mesh->addMeshBuffer(buf);
 802                         buf->drop();
 803                         }
 804                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 805                         mesh->drop();
 806                         // Set it to use the materials of the meshbuffers directly.
 807                         // This is needed for changing the texture in the future
 808                         m_meshnode->setReadOnlyMaterials(true);
 809                 }
 810                 else if(m_prop.visual == "cube"){
 811                         infostream<<"GenericCAO::addToScene(): cube"<<std::endl;
 812                         scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 813                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 814                         mesh->drop();
 815
 816                         m_meshnode->setScale(v3f(m_prop.visual_size.X,
 817                                         m_prop.visual_size.Y,
 818                                         m_prop.visual_size.X));
 819                         u8 li = m_last_light;
 820                         setMeshColor(m_meshnode->getMesh(), video::SColor(255,li,li,li));
 821                 }
 822                 else if(m_prop.visual == "mesh"){
 823                         infostream<<"GenericCAO::addToScene(): mesh"<<std::endl;
 824                         scene::IAnimatedMesh *mesh = smgr->getMesh(m_prop.mesh.c_str());
 825                         if(mesh)
 826                         {
 827                                 m_animated_meshnode = smgr->addAnimatedMeshSceneNode(mesh, NULL);
 828                                 m_animated_meshnode->setMD2Animation(scene::EMAT_STAND);
 829                                 m_animated_meshnode->animateJoints(); // Needed for some animations
 830                                 m_animated_meshnode->setScale(v3f(m_prop.visual_size.X,
 831                                                 m_prop.visual_size.Y,
 832                                                 m_prop.visual_size.X));
 833                                 u8 li = m_last_light;
 834                                 setMeshColor(m_animated_meshnode->getMesh(), video::SColor(255,li,li,li));
 835                         }
 836                         else
 837                                 errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;
 838                 }
 839                 else if(m_prop.visual == "wielditem"){
 840                         infostream<<"GenericCAO::addToScene(): node"<<std::endl;
 841                         infostream<<"textures: "<<m_prop.textures.size()<<std::endl;
 842                         if(m_prop.textures.size() >= 1){
 843                                 infostream<<"textures[0]: "<<m_prop.textures[0]<<std::endl;
 844                                 IItemDefManager *idef = m_gamedef->idef();
 845                                 ItemStack item(m_prop.textures[0], 1, 0, "", idef);
 846                                 scene::IMesh *item_mesh = item.getDefinition(idef).wield_mesh;
 847
 848                                 // Copy mesh to be able to set unique vertex colors
 849                                 scene::IMeshManipulator *manip =
 850                                                 irr->getVideoDriver()->getMeshManipulator();
 851                                 scene::IMesh *mesh = manip->createMeshUniquePrimitives(item_mesh);
 852
 853                                 m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 854                                 mesh->drop();
 855
 856                                 m_meshnode->setScale(v3f(m_prop.visual_size.X/2,
 857                                                 m_prop.visual_size.Y/2,
 858                                                 m_prop.visual_size.X/2));
 859                                 u8 li = m_last_light;
 860                                 setMeshColor(m_meshnode->getMesh(), video::SColor(255,li,li,li));
 861                         }
 862                 } else {
 863                         infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 864                                         <<"\" not supported"<<std::endl;
 865                 }
 866                 updateTextures("");
 867
 868                 scene::ISceneNode *node = NULL;
 869                 if(m_spritenode)
 870                         node = m_spritenode;
 871                 else if(m_animated_meshnode)
 872                         node = m_animated_meshnode;
 873                 else if(m_meshnode)
 874                         node = m_meshnode;
 875                 if(node && m_is_player && !m_is_local_player){
 876                         // Add a text node for showing the name
 877                         gui::IGUIEnvironment* gui = irr->getGUIEnvironment();
 878                         std::wstring wname = narrow_to_wide(m_name);
 879                         m_textnode = smgr->addTextSceneNode(gui->getBuiltInFont(),
 880                                         wname.c_str(), video::SColor(255,255,255,255), node);
 881                         m_textnode->setPosition(v3f(0, BS*1.1, 0));
 882                 }
 883
 884                 updateNodePos();
 885         }
 886
 887         void expireVisuals()
 888         {
 889                 m_visuals_expired = true;
 890         }
 891
 892         void updateLight(u8 light_at_pos)
 893         {
 894                 bool is_visible = (m_hp != 0);
 895                 u8 li = decode_light(light_at_pos);
 896                 if(li != m_last_light){
 897                         m_last_light = li;
 898                         video::SColor color(255,li,li,li);
 899                         if(m_meshnode){
 900                                 setMeshColor(m_meshnode->getMesh(), color);
 901                                 m_meshnode->setVisible(is_visible);
 902                         }
 903                         if(m_animated_meshnode){
 904                                 setMeshColor(m_animated_meshnode->getMesh(), color);
 905                                 m_animated_meshnode->setVisible(is_visible);
 906                         }
 907                         if(m_spritenode){
 908                                 m_spritenode->setColor(color);
 909                                 m_spritenode->setVisible(is_visible);
 910                         }
 911                 }
 912         }
 913
 914         v3s16 getLightPosition()
 915         {
 916                 return floatToInt(m_position, BS);
 917         }
 918
 919         void updateNodePos()
 920         {
 921                 if(m_attachment_parent != NULL)
 922                         return;
 923
 924                 if(m_meshnode){
 925                         m_meshnode->setPosition(pos_translator.vect_show);
 926                         v3f rot = m_meshnode->getRotation();
 927                         rot.Y = -m_yaw;
 928                         m_meshnode->setRotation(rot);
 929                 }
 930                 if(m_animated_meshnode){
 931                         m_animated_meshnode->setPosition(pos_translator.vect_show);
 932                         v3f rot = m_animated_meshnode->getRotation();
 933                         rot.Y = -m_yaw;
 934                         m_animated_meshnode->setRotation(rot);
 935                 }
 936                 if(m_spritenode){
 937                         m_spritenode->setPosition(pos_translator.vect_show);
 938                 }
 939         }
 940
 941         void step(float dtime, ClientEnvironment *env)
 942         {
 943                 v3f lastpos = pos_translator.vect_show;
 944
 945                 if(m_visuals_expired && m_smgr && m_irr){
 946                         m_visuals_expired = false;
 947                         removeFromScene();
 948                         addToScene(m_smgr, m_gamedef->tsrc(), m_irr);
 949                         updateAnimations();
 950                         updateBonePosRot();
 951                 }
 952
 953                 if(m_attachment_parent == NULL) // Attachments should be glued to their parent by Irrlicht
 954                 {
 955                         if(m_prop.physical){
 956                                 core::aabbox3d<f32> box = m_prop.collisionbox;
 957                                 box.MinEdge *= BS;
 958                                 box.MaxEdge *= BS;
 959                                 collisionMoveResult moveresult;
 960                                 f32 pos_max_d = BS*0.125; // Distance per iteration
 961                                 f32 stepheight = 0;
 962                                 v3f p_pos = m_position;
 963                                 v3f p_velocity = m_velocity;
 964                                 v3f p_acceleration = m_acceleration;
 965                                 IGameDef *gamedef = env->getGameDef();
 966                                 moveresult = collisionMoveSimple(&env->getMap(), gamedef,
 967                                                 pos_max_d, box, stepheight, dtime,
 968                                                 p_pos, p_velocity, p_acceleration);
 969                                 // Apply results
 970                                 m_position = p_pos;
 971                                 m_velocity = p_velocity;
 972                                 m_acceleration = p_acceleration;
 973
 974                                 bool is_end_position = moveresult.collides;
 975                                 pos_translator.update(m_position, is_end_position, dtime);
 976                                 pos_translator.translate(dtime);
 977                                 updateNodePos();
 978                         } else {
 979                                 m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
 980                                 m_velocity += dtime * m_acceleration;
 981                                 pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
 982                                 pos_translator.translate(dtime);
 983                                 updateNodePos();
 984                         }
 985
 986                         float moved = lastpos.getDistanceFrom(pos_translator.vect_show);
 987                         m_step_distance_counter += moved;
 988                         if(m_step_distance_counter > 1.5*BS){
 989                                 m_step_distance_counter = 0;
 990                                 if(!m_is_local_player && m_prop.makes_footstep_sound){
 991                                         INodeDefManager *ndef = m_gamedef->ndef();
 992                                         v3s16 p = floatToInt(getPosition() + v3f(0,
 993                                                         (m_prop.collisionbox.MinEdge.Y-0.5)*BS, 0), BS);
 994                                         MapNode n = m_env->getMap().getNodeNoEx(p);
 995                                         SimpleSoundSpec spec = ndef->get(n).sound_footstep;
 996                                         m_gamedef->sound()->playSoundAt(spec, false, getPosition());
 997                                 }
 998                         }
 999                 }
1000
1001                 m_anim_timer += dtime;
1002                 if(m_anim_timer >= m_anim_framelength){
1003                         m_anim_timer -= m_anim_framelength;
1004                         m_anim_frame++;
1005                         if(m_anim_frame >= m_anim_num_frames)
1006                                 m_anim_frame = 0;
1007                 }
1008
1009                 updateTexturePos();
1010
1011                 if(m_reset_textures_timer >= 0){
1012                         m_reset_textures_timer -= dtime;
1013                         if(m_reset_textures_timer <= 0){
1014                                 m_reset_textures_timer = -1;
1015                                 updateTextures("");
1016                         }
1017                 }
1018                 if(fabs(m_prop.automatic_rotate) > 0.001){
1019                         m_yaw += dtime * m_prop.automatic_rotate * 180 / M_PI;
1020                         updateNodePos();
1021                 }
1022         }
1023
1024         void updateTexturePos()
1025         {
1026                 if(m_spritenode){
1027                         scene::ICameraSceneNode* camera =
1028                                         m_spritenode->getSceneManager()->getActiveCamera();
1029                         if(!camera)
1030                                 return;
1031                         v3f cam_to_entity = m_spritenode->getAbsolutePosition()
1032                                         - camera->getAbsolutePosition();
1033                         cam_to_entity.normalize();
1034
1035                         int row = m_tx_basepos.Y;
1036                         int col = m_tx_basepos.X;
1037
1038                         if(m_tx_select_horiz_by_yawpitch)
1039                         {
1040                                 if(cam_to_entity.Y > 0.75)
1041                                         col += 5;
1042                                 else if(cam_to_entity.Y < -0.75)
1043                                         col += 4;
1044                                 else{
1045                                         float mob_dir = atan2(cam_to_entity.Z, cam_to_entity.X) / M_PI * 180.;
1046                                         float dir = mob_dir - m_yaw;
1047                                         dir = wrapDegrees_180(dir);
1048                                         //infostream<<"id="<<m_id<<" dir="<<dir<<std::endl;
1049                                         if(fabs(wrapDegrees_180(dir - 0)) <= 45.1)
1050                                                 col += 2;
1051                                         else if(fabs(wrapDegrees_180(dir - 90)) <= 45.1)
1052                                                 col += 3;
1053                                         else if(fabs(wrapDegrees_180(dir - 180)) <= 45.1)
1054                                                 col += 0;
1055                                         else if(fabs(wrapDegrees_180(dir + 90)) <= 45.1)
1056                                                 col += 1;
1057                                         else
1058                                                 col += 4;
1059                                 }
1060                         }
1061
1062                         // Animation goes downwards
1063                         row += m_anim_frame;
1064
1065                         float txs = m_tx_size.X;
1066                         float tys = m_tx_size.Y;
1067                         setBillboardTextureMatrix(m_spritenode,
1068                                         txs, tys, col, row);
1069                 }
1070         }
1071
1072         void updateTextures(const std::string &mod)
1073         {
1074                 ITextureSource *tsrc = m_gamedef->tsrc();
1075
1076                 if(m_spritenode)
1077                 {
1078                         if(m_prop.visual == "sprite")
1079                         {
1080                                 std::string texturestring = "unknown_block.png";
1081                                 if(m_prop.textures.size() >= 1)
1082                                         texturestring = m_prop.textures[0];
1083                                 texturestring += mod;
1084                                 m_spritenode->setMaterialTexture(0,
1085                                                 tsrc->getTextureRaw(texturestring));
1086
1087                                 // Does not work yet with the current lighting settings
1088                                 m_meshnode->getMaterial(0).AmbientColor = m_prop.colors[0];
1089                                 m_meshnode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1090                         }
1091                 }
1092                 if(m_animated_meshnode)
1093                 {
1094                         if(m_prop.visual == "mesh")
1095                         {
1096                                 for (u32 i = 0; i < m_prop.textures.size(); ++i)
1097                                 {
1098                                         std::string texturestring = m_prop.textures[i];
1099                                         if(texturestring == "")
1100                                                 continue; // Empty texture string means don't modify that material
1101                                         texturestring += mod;
1102                                         video::ITexture* texture = tsrc->getTextureRaw(texturestring);
1103                                         if(!texture)
1104                                         {
1105                                                 errorstream<<"GenericCAO::updateTextures(): Could not load texture "<<texturestring<<std::endl;
1106                                                 continue;
1107                                         }
1108
1109                                         // Set material flags and texture
1110                                         m_animated_meshnode->setMaterialTexture(i, texture);
1111                                         video::SMaterial& material = m_animated_meshnode->getMaterial(i);
1112                                         material.setFlag(video::EMF_LIGHTING, false);
1113                                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
1114                                 }
1115                                 for (u32 i = 0; i < m_prop.colors.size(); ++i)
1116                                 {
1117                                         // Does not work yet with the current lighting settings
1118                                         m_animated_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1119                                         m_animated_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1120                                 }
1121                         }
1122                 }
1123                 if(m_meshnode)
1124                 {
1125                         if(m_prop.visual == "cube")
1126                         {
1127                                 for (u32 i = 0; i < 6; ++i)
1128                                 {
1129                                         std::string texturestring = "unknown_block.png";
1130                                         if(m_prop.textures.size() > i)
1131                                                 texturestring = m_prop.textures[i];
1132                                         texturestring += mod;
1133                                         AtlasPointer ap = tsrc->getTexture(texturestring);
1134
1135                                         // Get the tile texture and atlas transformation
1136                                         video::ITexture* atlas = ap.atlas;
1137                                         v2f pos = ap.pos;
1138                                         v2f size = ap.size;
1139
1140                                         // Set material flags and texture
1141                                         video::SMaterial& material = m_meshnode->getMaterial(i);
1142                                         material.setFlag(video::EMF_LIGHTING, false);
1143                                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
1144                                         material.setTexture(0, atlas);
1145                                         material.getTextureMatrix(0).setTextureTranslate(pos.X, pos.Y);
1146                                         material.getTextureMatrix(0).setTextureScale(size.X, size.Y);
1147
1148                                         // Does not work yet with the current lighting settings
1149                                         m_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1150                                         m_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1151                                 }
1152                         }
1153                         else if(m_prop.visual == "upright_sprite")
1154                         {
1155                                 scene::IMesh *mesh = m_meshnode->getMesh();
1156                                 {
1157                                         std::string tname = "unknown_object.png";
1158                                         if(m_prop.textures.size() >= 1)
1159                                                 tname = m_prop.textures[0];
1160                                         tname += mod;
1161                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1162                                         buf->getMaterial().setTexture(0,
1163                                                         tsrc->getTextureRaw(tname));
1164
1165                                         // Does not work yet with the current lighting settings
1166                                         m_meshnode->getMaterial(0).AmbientColor = m_prop.colors[0];
1167                                         m_meshnode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1168                                 }
1169                                 {
1170                                         std::string tname = "unknown_object.png";
1171                                         if(m_prop.textures.size() >= 2)
1172                                                 tname = m_prop.textures[1];
1173                                         else if(m_prop.textures.size() >= 1)
1174                                                 tname = m_prop.textures[0];
1175                                         tname += mod;
1176                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1177                                         buf->getMaterial().setTexture(0,
1178                                                         tsrc->getTextureRaw(tname));
1179
1180                                         // Does not work yet with the current lighting settings
1181                                         m_meshnode->getMaterial(1).AmbientColor = m_prop.colors[1];
1182                                         m_meshnode->getMaterial(1).DiffuseColor = m_prop.colors[1];
1183                                 }
1184                         }
1185                 }
1186         }
1187
1188         void updateAnimations()
1189         {
1190                 if(!m_animated_meshnode)
1191                         return;
1192
1193                 m_animated_meshnode->setFrameLoop((int)m_frames.X, (int)m_frames.Y);
1194                 m_animated_meshnode->setAnimationSpeed(m_frame_speed);
1195                 m_animated_meshnode->setTransitionTime(m_frame_blend);
1196         }
1197
1198         void updateBonePosRot()
1199         {
1200                 if(m_bone_posrot.size() > 0)
1201                 {
1202                         m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
1203                         for(std::map<std::string, core::vector2d<v3f> >::const_iterator ii = m_bone_posrot.begin(); ii != m_bone_posrot.end(); ++ii){
1204                                 std::string bone_name = (*ii).first;
1205                                 v3f bone_pos = (*ii).second.X;
1206                                 v3f bone_rot = (*ii).second.Y;
1207                                 irr::scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
1208                                 bone->setPosition(bone_pos);
1209                                 bone->setRotation(bone_rot);
1210                         }
1211                 }
1212         }
1213
1214         void updateAttachments()
1215         {
1216                 // REMAINING ATTACHMENT ISSUES:
1217                 // We get to this function when the object is an attachment that needs to
1218                 // be attached to its parent. If a bone is set we attach it to that skeletal
1219                 // bone, otherwise just to the object's origin. Attachments should not copy parent
1220                 // position as that's laggy... instead the Irrlicht function(s) to attach should
1221                 // be used. If the parent object is NULL that means this object should be detached.
1222                 // This function is only called whenever a GENERIC_CMD_SET_ATTACHMENT message is received.
1223
1224                 // We already attach our entity on the server too (copy position). Reason we attach
1225                 // to the client as well is first of all lag. The server sends the position
1226                 // of the child separately than that of the parent, so even on localhost
1227                 // you'd see the child lagging behind. Models are also client-side, so this is
1228                 // needed to read bone data and attach to joints.
1229
1230                 // Functions:
1231                 // - m_attachment_parent is ClientActiveObject* for the parent entity.
1232                 // - m_attachment_bone is std::string of the bone, "" means none.
1233                 // - m_attachment_position is v3f and represents the position offset of the attachment.
1234                 // - m_attachment_rotation is v3f and represents the rotation offset of the attachment.
1235
1236                 // Implementation information:
1237                 // From what I know, we need to get the AnimatedMeshSceneNode of m_attachment_parent then
1238                 // use parent_node->addChild(m_animated_meshnode) for position attachment. For skeletal
1239                 // attachment I don't know yet. Same must be used to detach when a NULL parent is received.
1240
1241                 //Useful links:
1242                 // http://irrlicht.sourceforge.net/forum/viewtopic.php?t=7514
1243                 // http://www.irrlicht3d.org/wiki/index.php?n=Main.HowToUseTheNewAnimationSystem
1244                 // Irrlicht documentation: http://irrlicht.sourceforge.net/docu/
1245         }
1246
1247         void processMessage(const std::string &data)
1248         {
1249                 //infostream<<"GenericCAO: Got message"<<std::endl;
1250                 std::istringstream is(data, std::ios::binary);
1251                 // command
1252                 u8 cmd = readU8(is);
1253                 if(cmd == GENERIC_CMD_SET_PROPERTIES)
1254                 {
1255                         m_prop = gob_read_set_properties(is);
1256
1257                         m_selection_box = m_prop.collisionbox;
1258                         m_selection_box.MinEdge *= BS;
1259                         m_selection_box.MaxEdge *= BS;
1260
1261                         m_tx_size.X = 1.0 / m_prop.spritediv.X;
1262                         m_tx_size.Y = 1.0 / m_prop.spritediv.Y;
1263
1264                         if(!m_initial_tx_basepos_set){
1265                                 m_initial_tx_basepos_set = true;
1266                                 m_tx_basepos = m_prop.initial_sprite_basepos;
1267                         }
1268
1269                         expireVisuals();
1270                 }
1271                 else if(cmd == GENERIC_CMD_UPDATE_POSITION)
1272                 {
1273                         // Not sent by the server if the object is an attachment
1274
1275                         m_position = readV3F1000(is);
1276                         m_velocity = readV3F1000(is);
1277                         m_acceleration = readV3F1000(is);
1278                         if(fabs(m_prop.automatic_rotate) < 0.001)
1279                                 m_yaw = readF1000(is);
1280                         bool do_interpolate = readU8(is);
1281                         bool is_end_position = readU8(is);
1282                         float update_interval = readF1000(is);
1283
1284                         // Place us a bit higher if we're physical, to not sink into
1285                         // the ground due to sucky collision detection...
1286                         if(m_prop.physical)
1287                                 m_position += v3f(0,0.002,0);
1288
1289                         if(do_interpolate){
1290                                 if(!m_prop.physical)
1291                                         pos_translator.update(m_position, is_end_position, update_interval);
1292                         } else {
1293                                 pos_translator.init(m_position);
1294                         }
1295                         updateNodePos();
1296                 }
1297                 else if(cmd == GENERIC_CMD_SET_TEXTURE_MOD)
1298                 {
1299                         std::string mod = deSerializeString(is);
1300                         updateTextures(mod);
1301                 }
1302                 else if(cmd == GENERIC_CMD_SET_SPRITE)
1303                 {
1304                         v2s16 p = readV2S16(is);
1305                         int num_frames = readU16(is);
1306                         float framelength = readF1000(is);
1307                         bool select_horiz_by_yawpitch = readU8(is);
1308
1309                         m_tx_basepos = p;
1310                         m_anim_num_frames = num_frames;
1311                         m_anim_framelength = framelength;
1312                         m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1313
1314                         updateTexturePos();
1315                 }
1316                 else if(cmd == GENERIC_CMD_SET_ANIMATIONS)
1317                 {
1318                         m_frames = readV2F1000(is);
1319                         m_frame_speed = readF1000(is);
1320                         m_frame_blend = readF1000(is);
1321
1322                         updateAnimations();
1323                         expireVisuals();
1324                 }
1325                 else if(cmd == GENERIC_CMD_SET_BONE_POSROT)
1326                 {
1327                         std::string bone = deSerializeString(is);
1328                         v3f position = readV3F1000(is);
1329                         v3f rotation = readV3F1000(is);
1330                         m_bone_posrot[bone] = core::vector2d<v3f>(position, rotation);
1331
1332                         updateBonePosRot();
1333                         expireVisuals();
1334                 }
1335                 else if(cmd == GENERIC_CMD_SET_ATTACHMENT)
1336                 {
1337                         ClientActiveObject *obj;
1338                         int parent_id = readS16(is);
1339                         if(parent_id > 0)
1340                                 obj = m_env->getActiveObject(parent_id);
1341                         else
1342                                 obj = NULL;
1343                         m_attachment_parent = obj;
1344                         m_attachment_bone = deSerializeString(is);
1345                         m_attacmhent_position = readV3F1000(is);
1346                         m_attachment_rotation = readV3F1000(is);
1347
1348                         updateAttachments();
1349                 }
1350                 else if(cmd == GENERIC_CMD_PUNCHED)
1351                 {
1352                         /*s16 damage =*/ readS16(is);
1353                         s16 result_hp = readS16(is);
1354
1355                         m_hp = result_hp;
1356                 }
1357                 else if(cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS)
1358                 {
1359                         m_armor_groups.clear();
1360                         int armor_groups_size = readU16(is);
1361                         for(int i=0; i<armor_groups_size; i++){
1362                                 std::string name = deSerializeString(is);
1363                                 int rating = readS16(is);
1364                                 m_armor_groups[name] = rating;
1365                         }
1366                 }
1367         }
1368
1369         bool directReportPunch(v3f dir, const ItemStack *punchitem=NULL,
1370                         float time_from_last_punch=1000000)
1371         {
1372                 assert(punchitem);
1373                 const ToolCapabilities *toolcap =
1374                                 &punchitem->getToolCapabilities(m_gamedef->idef());
1375                 PunchDamageResult result = getPunchDamage(
1376                                 m_armor_groups,
1377                                 toolcap,
1378                                 punchitem,
1379                                 time_from_last_punch);
1380
1381                 if(result.did_punch && result.damage != 0)
1382                 {
1383                         if(result.damage < m_hp){
1384                                 m_hp -= result.damage;
1385                         } else {
1386                                 m_hp = 0;
1387                                 // TODO: Execute defined fast response
1388                                 // As there is no definition, make a smoke puff
1389                                 ClientSimpleObject *simple = createSmokePuff(
1390                                                 m_smgr, m_env, m_position,
1391                                                 m_prop.visual_size * BS);
1392                                 m_env->addSimpleObject(simple);
1393                         }
1394                         // TODO: Execute defined fast response
1395                         // Flashing shall suffice as there is no definition
1396                         m_reset_textures_timer = 0.05;
1397                         if(result.damage >= 2)
1398                                 m_reset_textures_timer += 0.05 * result.damage;
1399                         updateTextures("^[brighten");
1400                 }
1401
1402                 return false;
1403         }
1404
1405         std::string debugInfoText()
1406         {
1407                 std::ostringstream os(std::ios::binary);
1408                 os<<"GenericCAO hp="<<m_hp<<"\n";
1409                 os<<"armor={";
1410                 for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1411                                 i != m_armor_groups.end(); i++){
1412                         os<<i->first<<"="<<i->second<<", ";
1413                 }
1414                 os<<"}";
1415                 return os.str();
1416         }
1417 };
1418
1419 // Prototype
1420 GenericCAO proto_GenericCAO(NULL, NULL);
1421
1422