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
  42 class Settings;
  43 struct ToolCapabilities;
  44
  45 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
  46
  47 core::map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
  48
  49 /*
  50         SmoothTranslator
  51 */
  52
  53 struct SmoothTranslator
  54 {
  55         v3f vect_old;
  56         v3f vect_show;
  57         v3f vect_aim;
  58         f32 anim_counter;
  59         f32 anim_time;
  60         f32 anim_time_counter;
  61         bool aim_is_end;
  62
  63         SmoothTranslator():
  64                 vect_old(0,0,0),
  65                 vect_show(0,0,0),
  66                 vect_aim(0,0,0),
  67                 anim_counter(0),
  68                 anim_time(0),
  69                 anim_time_counter(0),
  70                 aim_is_end(true)
  71         {}
  72
  73         void init(v3f vect)
  74         {
  75                 vect_old = vect;
  76                 vect_show = vect;
  77                 vect_aim = vect;
  78                 anim_counter = 0;
  79                 anim_time = 0;
  80                 anim_time_counter = 0;
  81                 aim_is_end = true;
  82         }
  83
  84         void sharpen()
  85         {
  86                 init(vect_show);
  87         }
  88
  89         void update(v3f vect_new, bool is_end_position=false, float update_interval=-1)
  90         {
  91                 aim_is_end = is_end_position;
  92                 vect_old = vect_show;
  93                 vect_aim = vect_new;
  94                 if(update_interval > 0){
  95                         anim_time = update_interval;
  96                 } else {
  97                         if(anim_time < 0.001 || anim_time > 1.0)
  98                                 anim_time = anim_time_counter;
  99                         else
 100                                 anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
 101                 }
 102                 anim_time_counter = 0;
 103                 anim_counter = 0;
 104         }
 105
 106         void translate(f32 dtime)
 107         {
 108                 anim_time_counter = anim_time_counter + dtime;
 109                 anim_counter = anim_counter + dtime;
 110                 v3f vect_move = vect_aim - vect_old;
 111                 f32 moveratio = 1.0;
 112                 if(anim_time > 0.001)
 113                         moveratio = anim_time_counter / anim_time;
 114                 // Move a bit less than should, to avoid oscillation
 115                 moveratio = moveratio * 0.8;
 116                 float move_end = 1.5;
 117                 if(aim_is_end)
 118                         move_end = 1.0;
 119                 if(moveratio > move_end)
 120                         moveratio = move_end;
 121                 vect_show = vect_old + vect_move * moveratio;
 122         }
 123
 124         bool is_moving()
 125         {
 126                 return ((anim_time_counter / anim_time) < 1.4);
 127         }
 128 };
 129
 130 /*
 131         Other stuff
 132 */
 133
 134 static void setBillboardTextureMatrix(scene::IBillboardSceneNode *bill,
 135                 float txs, float tys, int col, int row)
 136 {
 137         video::SMaterial& material = bill->getMaterial(0);
 138         core::matrix4& matrix = material.getTextureMatrix(0);
 139         matrix.setTextureTranslate(txs*col, tys*row);
 140         matrix.setTextureScale(txs, tys);
 141 }
 142
 143 /*
 144         TestCAO
 145 */
 146
 147 class TestCAO : public ClientActiveObject
 148 {
 149 public:
 150         TestCAO(IGameDef *gamedef, ClientEnvironment *env);
 151         virtual ~TestCAO();
 152
 153         u8 getType() const
 154         {
 155                 return ACTIVEOBJECT_TYPE_TEST;
 156         }
 157
 158         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 159
 160         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 161                         IrrlichtDevice *irr);
 162         void removeFromScene();
 163         void updateLight(u8 light_at_pos);
 164         v3s16 getLightPosition();
 165         void updateNodePos();
 166
 167         void step(float dtime, ClientEnvironment *env);
 168
 169         void processMessage(const std::string &data);
 170
 171 private:
 172         scene::IMeshSceneNode *m_node;
 173         v3f m_position;
 174 };
 175
 176 // Prototype
 177 TestCAO proto_TestCAO(NULL, NULL);
 178
 179 TestCAO::TestCAO(IGameDef *gamedef, ClientEnvironment *env):
 180         ClientActiveObject(0, gamedef, env),
 181         m_node(NULL),
 182         m_position(v3f(0,10*BS,0))
 183 {
 184         ClientActiveObject::registerType(getType(), create);
 185 }
 186
 187 TestCAO::~TestCAO()
 188 {
 189 }
 190
 191 ClientActiveObject* TestCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 192 {
 193         return new TestCAO(gamedef, env);
 194 }
 195
 196 void TestCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 197                         IrrlichtDevice *irr)
 198 {
 199         if(m_node != NULL)
 200                 return;
 201
 202         //video::IVideoDriver* driver = smgr->getVideoDriver();
 203
 204         scene::SMesh *mesh = new scene::SMesh();
 205         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 206         video::SColor c(255,255,255,255);
 207         video::S3DVertex vertices[4] =
 208         {
 209                 video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 210                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 211                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 212                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
 213         };
 214         u16 indices[] = {0,1,2,2,3,0};
 215         buf->append(vertices, 4, indices, 6);
 216         // Set material
 217         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 218         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 219         buf->getMaterial().setTexture(0, tsrc->getTextureRaw("rat.png"));
 220         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 221         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 222         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 223         // Add to mesh
 224         mesh->addMeshBuffer(buf);
 225         buf->drop();
 226         m_node = smgr->addMeshSceneNode(mesh, NULL);
 227         mesh->drop();
 228         updateNodePos();
 229 }
 230
 231 void TestCAO::removeFromScene()
 232 {
 233         if(m_node == NULL)
 234                 return;
 235
 236         m_node->remove();
 237         m_node = NULL;
 238 }
 239
 240 void TestCAO::updateLight(u8 light_at_pos)
 241 {
 242 }
 243
 244 v3s16 TestCAO::getLightPosition()
 245 {
 246         return floatToInt(m_position, BS);
 247 }
 248
 249 void TestCAO::updateNodePos()
 250 {
 251         if(m_node == NULL)
 252                 return;
 253
 254         m_node->setPosition(m_position);
 255         //m_node->setRotation(v3f(0, 45, 0));
 256 }
 257
 258 void TestCAO::step(float dtime, ClientEnvironment *env)
 259 {
 260         if(m_node)
 261         {
 262                 v3f rot = m_node->getRotation();
 263                 //infostream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
 264                 rot.Y += dtime * 180;
 265                 m_node->setRotation(rot);
 266         }
 267 }
 268
 269 void TestCAO::processMessage(const std::string &data)
 270 {
 271         infostream<<"TestCAO: Got data: "<<data<<std::endl;
 272         std::istringstream is(data, std::ios::binary);
 273         u16 cmd;
 274         is>>cmd;
 275         if(cmd == 0)
 276         {
 277                 v3f newpos;
 278                 is>>newpos.X;
 279                 is>>newpos.Y;
 280                 is>>newpos.Z;
 281                 m_position = newpos;
 282                 updateNodePos();
 283         }
 284 }
 285
 286 /*
 287         ItemCAO
 288 */
 289
 290 class ItemCAO : public ClientActiveObject
 291 {
 292 public:
 293         ItemCAO(IGameDef *gamedef, ClientEnvironment *env);
 294         virtual ~ItemCAO();
 295
 296         u8 getType() const
 297         {
 298                 return ACTIVEOBJECT_TYPE_ITEM;
 299         }
 300
 301         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 302
 303         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 304                         IrrlichtDevice *irr);
 305         void removeFromScene();
 306         void updateLight(u8 light_at_pos);
 307         v3s16 getLightPosition();
 308         void updateNodePos();
 309         void updateInfoText();
 310         void updateTexture();
 311
 312         void step(float dtime, ClientEnvironment *env);
 313
 314         void processMessage(const std::string &data);
 315
 316         void initialize(const std::string &data);
 317
 318         core::aabbox3d<f32>* getSelectionBox()
 319                 {return &m_selection_box;}
 320         v3f getPosition()
 321                 {return m_position;}
 322
 323         std::string infoText()
 324                 {return m_infotext;}
 325
 326 private:
 327         core::aabbox3d<f32> m_selection_box;
 328         scene::IMeshSceneNode *m_node;
 329         v3f m_position;
 330         std::string m_itemstring;
 331         std::string m_infotext;
 332 };
 333
 334 #include "inventory.h"
 335
 336 // Prototype
 337 ItemCAO proto_ItemCAO(NULL, NULL);
 338
 339 ItemCAO::ItemCAO(IGameDef *gamedef, ClientEnvironment *env):
 340         ClientActiveObject(0, gamedef, env),
 341         m_selection_box(-BS/3.,0.0,-BS/3., BS/3.,BS*2./3.,BS/3.),
 342         m_node(NULL),
 343         m_position(v3f(0,10*BS,0))
 344 {
 345         if(!gamedef && !env)
 346         {
 347                 ClientActiveObject::registerType(getType(), create);
 348         }
 349 }
 350
 351 ItemCAO::~ItemCAO()
 352 {
 353 }
 354
 355 ClientActiveObject* ItemCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 356 {
 357         return new ItemCAO(gamedef, env);
 358 }
 359
 360 void ItemCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 361                         IrrlichtDevice *irr)
 362 {
 363         if(m_node != NULL)
 364                 return;
 365
 366         //video::IVideoDriver* driver = smgr->getVideoDriver();
 367
 368         scene::SMesh *mesh = new scene::SMesh();
 369         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 370         video::SColor c(255,255,255,255);
 371         video::S3DVertex vertices[4] =
 372         {
 373                 /*video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 374                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 375                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 376                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),*/
 377                 video::S3DVertex(BS/3.,0,0, 0,0,0, c, 0,1),
 378                 video::S3DVertex(-BS/3.,0,0, 0,0,0, c, 1,1),
 379                 video::S3DVertex(-BS/3.,0+BS*2./3.,0, 0,0,0, c, 1,0),
 380                 video::S3DVertex(BS/3.,0+BS*2./3.,0, 0,0,0, c, 0,0),
 381         };
 382         u16 indices[] = {0,1,2,2,3,0};
 383         buf->append(vertices, 4, indices, 6);
 384         // Set material
 385         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 386         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 387         // Initialize with a generated placeholder texture
 388         buf->getMaterial().setTexture(0, tsrc->getTextureRaw(""));
 389         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 390         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 391         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 392         // Add to mesh
 393         mesh->addMeshBuffer(buf);
 394         buf->drop();
 395         m_node = smgr->addMeshSceneNode(mesh, NULL);
 396         mesh->drop();
 397         updateNodePos();
 398
 399         /*
 400                 Update image of node
 401         */
 402
 403         updateTexture();
 404 }
 405
 406 void ItemCAO::removeFromScene()
 407 {
 408         if(m_node == NULL)
 409                 return;
 410
 411         m_node->remove();
 412         m_node = NULL;
 413 }
 414
 415 void ItemCAO::updateLight(u8 light_at_pos)
 416 {
 417         if(m_node == NULL)
 418                 return;
 419
 420         u8 li = decode_light(light_at_pos);
 421         video::SColor color(255,li,li,li);
 422         setMeshColor(m_node->getMesh(), color);
 423 }
 424
 425 v3s16 ItemCAO::getLightPosition()
 426 {
 427         return floatToInt(m_position + v3f(0,0.5*BS,0), BS);
 428 }
 429
 430 void ItemCAO::updateNodePos()
 431 {
 432         if(m_node == NULL)
 433                 return;
 434
 435         m_node->setPosition(m_position);
 436 }
 437
 438 void ItemCAO::updateInfoText()
 439 {
 440         try{
 441                 IItemDefManager *idef = m_gamedef->idef();
 442                 ItemStack item;
 443                 item.deSerialize(m_itemstring, idef);
 444                 if(item.isKnown(idef))
 445                         m_infotext = item.getDefinition(idef).description;
 446                 else
 447                         m_infotext = "Unknown item: '" + m_itemstring + "'";
 448                 if(item.count >= 2)
 449                         m_infotext += " (" + itos(item.count) + ")";
 450         }
 451         catch(SerializationError &e)
 452         {
 453                 m_infotext = "Unknown item: '" + m_itemstring + "'";
 454         }
 455 }
 456
 457 void ItemCAO::updateTexture()
 458 {
 459         if(m_node == NULL)
 460                 return;
 461
 462         // Create an inventory item to see what is its image
 463         std::istringstream is(m_itemstring, std::ios_base::binary);
 464         video::ITexture *texture = NULL;
 465         try{
 466                 IItemDefManager *idef = m_gamedef->idef();
 467                 ItemStack item;
 468                 item.deSerialize(is, idef);
 469                 texture = item.getDefinition(idef).inventory_texture;
 470         }
 471         catch(SerializationError &e)
 472         {
 473                 infostream<<"WARNING: "<<__FUNCTION_NAME
 474                                 <<": error deSerializing itemstring \""
 475                                 <<m_itemstring<<std::endl;
 476         }
 477
 478         // Set meshbuffer texture
 479         m_node->getMaterial(0).setTexture(0, texture);
 480 }
 481
 482
 483 void ItemCAO::step(float dtime, ClientEnvironment *env)
 484 {
 485         if(m_node)
 486         {
 487                 /*v3f rot = m_node->getRotation();
 488                 rot.Y += dtime * 120;
 489                 m_node->setRotation(rot);*/
 490                 LocalPlayer *player = env->getLocalPlayer();
 491                 assert(player);
 492                 v3f rot = m_node->getRotation();
 493                 rot.Y = 180.0 - (player->getYaw());
 494                 m_node->setRotation(rot);
 495         }
 496 }
 497
 498 void ItemCAO::processMessage(const std::string &data)
 499 {
 500         //infostream<<"ItemCAO: Got message"<<std::endl;
 501         std::istringstream is(data, std::ios::binary);
 502         // command
 503         u8 cmd = readU8(is);
 504         if(cmd == 0)
 505         {
 506                 // pos
 507                 m_position = readV3F1000(is);
 508                 updateNodePos();
 509         }
 510         if(cmd == 1)
 511         {
 512                 // itemstring
 513                 m_itemstring = deSerializeString(is);
 514                 updateInfoText();
 515                 updateTexture();
 516         }
 517 }
 518
 519 void ItemCAO::initialize(const std::string &data)
 520 {
 521         infostream<<"ItemCAO: Got init data"<<std::endl;
 522
 523         {
 524                 std::istringstream is(data, std::ios::binary);
 525                 // version
 526                 u8 version = readU8(is);
 527                 // check version
 528                 if(version != 0)
 529                         return;
 530                 // pos
 531                 m_position = readV3F1000(is);
 532                 // itemstring
 533                 m_itemstring = deSerializeString(is);
 534         }
 535
 536         updateNodePos();
 537         updateInfoText();
 538 }
 539
 540 /*
 541         GenericCAO
 542 */
 543
 544 #include "genericobject.h"
 545
 546 class GenericCAO : public ClientActiveObject
 547 {
 548 private:
 549         // Only set at initialization
 550         std::string m_name;
 551         bool m_is_player;
 552         bool m_is_local_player; // determined locally
 553         // Property-ish things
 554         ObjectProperties m_prop;
 555         //
 556         scene::ISceneManager *m_smgr;
 557         IrrlichtDevice *m_irr;
 558         core::aabbox3d<f32> m_selection_box;
 559         scene::IMeshSceneNode *m_meshnode;
 560         scene::IBillboardSceneNode *m_spritenode;
 561         scene::ITextSceneNode* m_textnode;
 562         v3f m_position;
 563         v3f m_velocity;
 564         v3f m_acceleration;
 565         float m_yaw;
 566         s16 m_hp;
 567         SmoothTranslator pos_translator;
 568         // Spritesheet/animation stuff
 569         v2f m_tx_size;
 570         v2s16 m_tx_basepos;
 571         bool m_initial_tx_basepos_set;
 572         bool m_tx_select_horiz_by_yawpitch;
 573         int m_anim_frame;
 574         int m_anim_num_frames;
 575         float m_anim_framelength;
 576         float m_anim_timer;
 577         ItemGroupList m_armor_groups;
 578         float m_reset_textures_timer;
 579         bool m_visuals_expired;
 580         float m_step_distance_counter;
 581         u8 m_last_light;
 582
 583 public:
 584         GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
 585                 ClientActiveObject(0, gamedef, env),
 586                 //
 587                 m_is_player(false),
 588                 m_is_local_player(false),
 589                 //
 590                 m_smgr(NULL),
 591                 m_irr(NULL),
 592                 m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
 593                 m_meshnode(NULL),
 594                 m_spritenode(NULL),
 595                 m_textnode(NULL),
 596                 m_position(v3f(0,10*BS,0)),
 597                 m_velocity(v3f(0,0,0)),
 598                 m_acceleration(v3f(0,0,0)),
 599                 m_yaw(0),
 600                 m_hp(1),
 601                 m_tx_size(1,1),
 602                 m_tx_basepos(0,0),
 603                 m_initial_tx_basepos_set(false),
 604                 m_tx_select_horiz_by_yawpitch(false),
 605                 m_anim_frame(0),
 606                 m_anim_num_frames(1),
 607                 m_anim_framelength(0.2),
 608                 m_anim_timer(0),
 609                 m_reset_textures_timer(-1),
 610                 m_visuals_expired(false),
 611                 m_step_distance_counter(0),
 612                 m_last_light(255)
 613         {
 614                 if(gamedef == NULL)
 615                         ClientActiveObject::registerType(getType(), create);
 616         }
 617
 618         void initialize(const std::string &data)
 619         {
 620                 infostream<<"GenericCAO: Got init data"<<std::endl;
 621                 std::istringstream is(data, std::ios::binary);
 622                 // version
 623                 u8 version = readU8(is);
 624                 // check version
 625                 if(version != 0){
 626                         errorstream<<"GenericCAO: Unsupported init data version"
 627                                         <<std::endl;
 628                         return;
 629                 }
 630                 m_name = deSerializeString(is);
 631                 m_is_player = readU8(is);
 632                 m_position = readV3F1000(is);
 633                 m_yaw = readF1000(is);
 634                 m_hp = readS16(is);
 635
 636                 int num_messages = readU8(is);
 637                 for(int i=0; i<num_messages; i++){
 638                         std::string message = deSerializeLongString(is);
 639                         processMessage(message);
 640                 }
 641
 642                 pos_translator.init(m_position);
 643                 updateNodePos();
 644
 645                 if(m_is_player){
 646                         Player *player = m_env->getPlayer(m_name.c_str());
 647                         if(player && player->isLocal()){
 648                                 m_is_local_player = true;
 649                         }
 650                 }
 651         }
 652
 653         ~GenericCAO()
 654         {
 655         }
 656
 657         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env)
 658         {
 659                 return new GenericCAO(gamedef, env);
 660         }
 661
 662         u8 getType() const
 663         {
 664                 return ACTIVEOBJECT_TYPE_GENERIC;
 665         }
 666         core::aabbox3d<f32>* getSelectionBox()
 667         {
 668                 if(!m_prop.is_visible || m_is_local_player)
 669                         return NULL;
 670                 return &m_selection_box;
 671         }
 672         v3f getPosition()
 673         {
 674                 return pos_translator.vect_show;
 675         }
 676
 677         void removeFromScene()
 678         {
 679                 if(m_meshnode){
 680                         m_meshnode->remove();
 681                         m_meshnode = NULL;
 682                 }
 683                 if(m_spritenode){
 684                         m_spritenode->remove();
 685                         m_spritenode = NULL;
 686                 }
 687         }
 688
 689         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 690                         IrrlichtDevice *irr)
 691         {
 692                 m_smgr = smgr;
 693                 m_irr = irr;
 694
 695                 if(m_meshnode != NULL || m_spritenode != NULL)
 696                         return;
 697
 698                 m_visuals_expired = false;
 699
 700                 if(!m_prop.is_visible || m_is_local_player)
 701                         return;
 702
 703                 //video::IVideoDriver* driver = smgr->getVideoDriver();
 704
 705                 if(m_prop.visual == "sprite"){
 706                         infostream<<"GenericCAO::addToScene(): single_sprite"<<std::endl;
 707                         m_spritenode = smgr->addBillboardSceneNode(
 708                                         NULL, v2f(1, 1), v3f(0,0,0), -1);
 709                         m_spritenode->setMaterialTexture(0,
 710                                         tsrc->getTextureRaw("unknown_block.png"));
 711                         m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
 712                         m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 713                         m_spritenode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
 714                         m_spritenode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 715                         u8 li = m_last_light;
 716                         m_spritenode->setColor(video::SColor(255,li,li,li));
 717                         m_spritenode->setSize(m_prop.visual_size*BS);
 718                         {
 719                                 const float txs = 1.0 / 1;
 720                                 const float tys = 1.0 / 1;
 721                                 setBillboardTextureMatrix(m_spritenode,
 722                                                 txs, tys, 0, 0);
 723                         }
 724                 }
 725                 else if(m_prop.visual == "upright_sprite")
 726                 {
 727                         scene::SMesh *mesh = new scene::SMesh();
 728                         double dx = BS*m_prop.visual_size.X/2;
 729                         double dy = BS*m_prop.visual_size.Y/2;
 730                         { // Front
 731                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 732                         u8 li = m_last_light;
 733                         video::SColor c(255,li,li,li);
 734                         video::S3DVertex vertices[4] =
 735                         {
 736                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 737                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 738                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 739                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 740                         };
 741                         u16 indices[] = {0,1,2,2,3,0};
 742                         buf->append(vertices, 4, indices, 6);
 743                         // Set material
 744                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 745                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 746                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 747                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 748                         // Add to mesh
 749                         mesh->addMeshBuffer(buf);
 750                         buf->drop();
 751                         }
 752                         { // Back
 753                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 754                         u8 li = m_last_light;
 755                         video::SColor c(255,li,li,li);
 756                         video::S3DVertex vertices[4] =
 757                         {
 758                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 759                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 760                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 761                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 762                         };
 763                         u16 indices[] = {0,1,2,2,3,0};
 764                         buf->append(vertices, 4, indices, 6);
 765                         // Set material
 766                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 767                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 768                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 769                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 770                         // Add to mesh
 771                         mesh->addMeshBuffer(buf);
 772                         buf->drop();
 773                         }
 774                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 775                         mesh->drop();
 776                         // Set it to use the materials of the meshbuffers directly.
 777                         // This is needed for changing the texture in the future
 778                         m_meshnode->setReadOnlyMaterials(true);
 779                 }
 780                 else if(m_prop.visual == "cube"){
 781                         infostream<<"GenericCAO::addToScene(): cube"<<std::endl;
 782                         scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 783                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 784                         mesh->drop();
 785
 786                         m_meshnode->setScale(v3f(m_prop.visual_size.X,
 787                                         m_prop.visual_size.Y,
 788                                         m_prop.visual_size.X));
 789                         u8 li = m_last_light;
 790                         setMeshColor(m_meshnode->getMesh(), video::SColor(255,li,li,li));
 791                 } else if(m_prop.visual == "wielditem"){
 792                         infostream<<"GenericCAO::addToScene(): node"<<std::endl;
 793                         infostream<<"textures: "<<m_prop.textures.size()<<std::endl;
 794                         if(m_prop.textures.size() >= 1){
 795                                 infostream<<"textures[0]: "<<m_prop.textures[0]<<std::endl;
 796                                 IItemDefManager *idef = m_gamedef->idef();
 797                                 ItemStack item(m_prop.textures[0], 1, 0, "", idef);
 798                                 scene::IMesh *mesh = item.getDefinition(idef).wield_mesh;
 799                                 m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 800
 801                                 m_meshnode->setScale(v3f(m_prop.visual_size.X/2,
 802                                                 m_prop.visual_size.Y/2,
 803                                                 m_prop.visual_size.X/2));
 804                                 u8 li = m_last_light;
 805                                 setMeshColor(m_meshnode->getMesh(), video::SColor(255,li,li,li));
 806                         }
 807                 } else {
 808                         infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 809                                         <<"\" not supported"<<std::endl;
 810                 }
 811                 updateTextures("");
 812
 813                 scene::ISceneNode *node = NULL;
 814                 if(m_spritenode)
 815                         node = m_spritenode;
 816                 else if(m_meshnode)
 817                         node = m_meshnode;
 818                 if(node && m_is_player && !m_is_local_player){
 819                         // Add a text node for showing the name
 820                         gui::IGUIEnvironment* gui = irr->getGUIEnvironment();
 821                         std::wstring wname = narrow_to_wide(m_name);
 822                         m_textnode = smgr->addTextSceneNode(gui->getBuiltInFont(),
 823                                         wname.c_str(), video::SColor(255,255,255,255), node);
 824                         m_textnode->setPosition(v3f(0, BS*1.1, 0));
 825                 }
 826
 827                 updateNodePos();
 828         }
 829
 830         void expireVisuals()
 831         {
 832                 m_visuals_expired = true;
 833         }
 834
 835         void updateLight(u8 light_at_pos)
 836         {
 837                 bool is_visible = (m_hp != 0);
 838                 u8 li = decode_light(light_at_pos);
 839                 m_last_light = li;
 840                 video::SColor color(255,li,li,li);
 841                 if(m_meshnode){
 842                         setMeshColor(m_meshnode->getMesh(), color);
 843                         m_meshnode->setVisible(is_visible);
 844                 }
 845                 if(m_spritenode){
 846                         m_spritenode->setColor(color);
 847                         m_spritenode->setVisible(is_visible);
 848                 }
 849         }
 850
 851         v3s16 getLightPosition()
 852         {
 853                 return floatToInt(m_position, BS);
 854         }
 855
 856         void updateNodePos()
 857         {
 858                 if(m_meshnode){
 859                         m_meshnode->setPosition(pos_translator.vect_show);
 860                         v3f rot = m_meshnode->getRotation();
 861                         rot.Y = -m_yaw;
 862                         m_meshnode->setRotation(rot);
 863                 }
 864                 if(m_spritenode){
 865                         m_spritenode->setPosition(pos_translator.vect_show);
 866                 }
 867         }
 868
 869         void step(float dtime, ClientEnvironment *env)
 870         {
 871                 v3f lastpos = pos_translator.vect_show;
 872
 873                 if(m_visuals_expired && m_smgr && m_irr){
 874                         m_visuals_expired = false;
 875                         removeFromScene();
 876                         addToScene(m_smgr, m_gamedef->tsrc(), m_irr);
 877                 }
 878
 879                 if(m_prop.physical){
 880                         core::aabbox3d<f32> box = m_prop.collisionbox;
 881                         box.MinEdge *= BS;
 882                         box.MaxEdge *= BS;
 883                         collisionMoveResult moveresult;
 884                         f32 pos_max_d = BS*0.125; // Distance per iteration
 885                         f32 stepheight = 0;
 886                         v3f p_pos = m_position;
 887                         v3f p_velocity = m_velocity;
 888                         v3f p_acceleration = m_acceleration;
 889                         IGameDef *gamedef = env->getGameDef();
 890                         moveresult = collisionMoveSimple(&env->getMap(), gamedef,
 891                                         pos_max_d, box, stepheight, dtime,
 892                                         p_pos, p_velocity, p_acceleration);
 893                         // Apply results
 894                         m_position = p_pos;
 895                         m_velocity = p_velocity;
 896                         m_acceleration = p_acceleration;
 897
 898                         bool is_end_position = moveresult.collides;
 899                         pos_translator.update(m_position, is_end_position, dtime);
 900                         pos_translator.translate(dtime);
 901                         updateNodePos();
 902                 } else {
 903                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
 904                         m_velocity += dtime * m_acceleration;
 905                         pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
 906                         pos_translator.translate(dtime);
 907                         updateNodePos();
 908                 }
 909
 910                 float moved = lastpos.getDistanceFrom(pos_translator.vect_show);
 911                 m_step_distance_counter += moved;
 912                 if(m_step_distance_counter > 1.5*BS){
 913                         m_step_distance_counter = 0;
 914                         if(!m_is_local_player && m_prop.makes_footstep_sound){
 915                                 INodeDefManager *ndef = m_gamedef->ndef();
 916                                 v3s16 p = floatToInt(getPosition() + v3f(0,
 917                                                 (m_prop.collisionbox.MinEdge.Y-0.5)*BS, 0), BS);
 918                                 MapNode n = m_env->getMap().getNodeNoEx(p);
 919                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
 920                                 m_gamedef->sound()->playSoundAt(spec, false, getPosition());
 921                         }
 922                 }
 923
 924                 m_anim_timer += dtime;
 925                 if(m_anim_timer >= m_anim_framelength){
 926                         m_anim_timer -= m_anim_framelength;
 927                         m_anim_frame++;
 928                         if(m_anim_frame >= m_anim_num_frames)
 929                                 m_anim_frame = 0;
 930                 }
 931
 932                 updateTexturePos();
 933
 934                 if(m_reset_textures_timer >= 0){
 935                         m_reset_textures_timer -= dtime;
 936                         if(m_reset_textures_timer <= 0){
 937                                 m_reset_textures_timer = -1;
 938                                 updateTextures("");
 939                         }
 940                 }
 941                 if(fabs(m_prop.automatic_rotate) > 0.001){
 942                         m_yaw += dtime * m_prop.automatic_rotate * 180 / M_PI;
 943                         updateNodePos();
 944                 }
 945         }
 946
 947         void updateTexturePos()
 948         {
 949                 if(m_spritenode){
 950                         scene::ICameraSceneNode* camera =
 951                                         m_spritenode->getSceneManager()->getActiveCamera();
 952                         if(!camera)
 953                                 return;
 954                         v3f cam_to_entity = m_spritenode->getAbsolutePosition()
 955                                         - camera->getAbsolutePosition();
 956                         cam_to_entity.normalize();
 957
 958                         int row = m_tx_basepos.Y;
 959                         int col = m_tx_basepos.X;
 960
 961                         if(m_tx_select_horiz_by_yawpitch)
 962                         {
 963                                 if(cam_to_entity.Y > 0.75)
 964                                         col += 5;
 965                                 else if(cam_to_entity.Y < -0.75)
 966                                         col += 4;
 967                                 else{
 968                                         float mob_dir = atan2(cam_to_entity.Z, cam_to_entity.X) / M_PI * 180.;
 969                                         float dir = mob_dir - m_yaw;
 970                                         dir = wrapDegrees_180(dir);
 971                                         //infostream<<"id="<<m_id<<" dir="<<dir<<std::endl;
 972                                         if(fabs(wrapDegrees_180(dir - 0)) <= 45.1)
 973                                                 col += 2;
 974                                         else if(fabs(wrapDegrees_180(dir - 90)) <= 45.1)
 975                                                 col += 3;
 976                                         else if(fabs(wrapDegrees_180(dir - 180)) <= 45.1)
 977                                                 col += 0;
 978                                         else if(fabs(wrapDegrees_180(dir + 90)) <= 45.1)
 979                                                 col += 1;
 980                                         else
 981                                                 col += 4;
 982                                 }
 983                         }
 984
 985                         // Animation goes downwards
 986                         row += m_anim_frame;
 987
 988                         float txs = m_tx_size.X;
 989                         float tys = m_tx_size.Y;
 990                         setBillboardTextureMatrix(m_spritenode,
 991                                         txs, tys, col, row);
 992                 }
 993         }
 994
 995         void updateTextures(const std::string &mod)
 996         {
 997                 ITextureSource *tsrc = m_gamedef->tsrc();
 998
 999                 if(m_spritenode)
1000                 {
1001                         if(m_prop.visual == "sprite")
1002                         {
1003                                 std::string texturestring = "unknown_block.png";
1004                                 if(m_prop.textures.size() >= 1)
1005                                         texturestring = m_prop.textures[0];
1006                                 texturestring += mod;
1007                                 m_spritenode->setMaterialTexture(0,
1008                                                 tsrc->getTextureRaw(texturestring));
1009                         }
1010                 }
1011                 if(m_meshnode)
1012                 {
1013                         if(m_prop.visual == "cube")
1014                         {
1015                                 for (u32 i = 0; i < 6; ++i)
1016                                 {
1017                                         std::string texturestring = "unknown_block.png";
1018                                         if(m_prop.textures.size() > i)
1019                                                 texturestring = m_prop.textures[i];
1020                                         texturestring += mod;
1021                                         AtlasPointer ap = tsrc->getTexture(texturestring);
1022
1023                                         // Get the tile texture and atlas transformation
1024                                         video::ITexture* atlas = ap.atlas;
1025                                         v2f pos = ap.pos;
1026                                         v2f size = ap.size;
1027
1028                                         // Set material flags and texture
1029                                         video::SMaterial& material = m_meshnode->getMaterial(i);
1030                                         material.setFlag(video::EMF_LIGHTING, false);
1031                                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
1032                                         material.setTexture(0, atlas);
1033                                         material.getTextureMatrix(0).setTextureTranslate(pos.X, pos.Y);
1034                                         material.getTextureMatrix(0).setTextureScale(size.X, size.Y);
1035                                 }
1036                         }
1037                         else if(m_prop.visual == "upright_sprite")
1038                         {
1039                                 scene::IMesh *mesh = m_meshnode->getMesh();
1040                                 {
1041                                         std::string tname = "unknown_object.png";
1042                                         if(m_prop.textures.size() >= 1)
1043                                                 tname = m_prop.textures[0];
1044                                         tname += mod;
1045                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1046                                         buf->getMaterial().setTexture(0,
1047                                                         tsrc->getTextureRaw(tname));
1048                                 }
1049                                 {
1050                                         std::string tname = "unknown_object.png";
1051                                         if(m_prop.textures.size() >= 2)
1052                                                 tname = m_prop.textures[1];
1053                                         else if(m_prop.textures.size() >= 1)
1054                                                 tname = m_prop.textures[0];
1055                                         tname += mod;
1056                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1057                                         buf->getMaterial().setTexture(0,
1058                                                         tsrc->getTextureRaw(tname));
1059                                 }
1060                         }
1061                 }
1062         }
1063
1064         void processMessage(const std::string &data)
1065         {
1066                 //infostream<<"GenericCAO: Got message"<<std::endl;
1067                 std::istringstream is(data, std::ios::binary);
1068                 // command
1069                 u8 cmd = readU8(is);
1070                 if(cmd == GENERIC_CMD_SET_PROPERTIES)
1071                 {
1072                         m_prop = gob_read_set_properties(is);
1073
1074                         m_selection_box = m_prop.collisionbox;
1075                         m_selection_box.MinEdge *= BS;
1076                         m_selection_box.MaxEdge *= BS;
1077
1078                         m_tx_size.X = 1.0 / m_prop.spritediv.X;
1079                         m_tx_size.Y = 1.0 / m_prop.spritediv.Y;
1080
1081                         if(!m_initial_tx_basepos_set){
1082                                 m_initial_tx_basepos_set = true;
1083                                 m_tx_basepos = m_prop.initial_sprite_basepos;
1084                         }
1085
1086                         expireVisuals();
1087                 }
1088                 else if(cmd == GENERIC_CMD_UPDATE_POSITION)
1089                 {
1090                         m_position = readV3F1000(is);
1091                         m_velocity = readV3F1000(is);
1092                         m_acceleration = readV3F1000(is);
1093                         if(fabs(m_prop.automatic_rotate) < 0.001)
1094                                 m_yaw = readF1000(is);
1095                         bool do_interpolate = readU8(is);
1096                         bool is_end_position = readU8(is);
1097                         float update_interval = readF1000(is);
1098
1099                         // Place us a bit higher if we're physical, to not sink into
1100                         // the ground due to sucky collision detection...
1101                         if(m_prop.physical)
1102                                 m_position += v3f(0,0.002,0);
1103
1104                         if(do_interpolate){
1105                                 if(!m_prop.physical)
1106                                         pos_translator.update(m_position, is_end_position, update_interval);
1107                         } else {
1108                                 pos_translator.init(m_position);
1109                         }
1110                         updateNodePos();
1111                 }
1112                 else if(cmd == GENERIC_CMD_SET_TEXTURE_MOD)
1113                 {
1114                         std::string mod = deSerializeString(is);
1115                         updateTextures(mod);
1116                 }
1117                 else if(cmd == GENERIC_CMD_SET_SPRITE)
1118                 {
1119                         v2s16 p = readV2S16(is);
1120                         int num_frames = readU16(is);
1121                         float framelength = readF1000(is);
1122                         bool select_horiz_by_yawpitch = readU8(is);
1123
1124                         m_tx_basepos = p;
1125                         m_anim_num_frames = num_frames;
1126                         m_anim_framelength = framelength;
1127                         m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1128
1129                         updateTexturePos();
1130                 }
1131                 else if(cmd == GENERIC_CMD_PUNCHED)
1132                 {
1133                         /*s16 damage =*/ readS16(is);
1134                         s16 result_hp = readS16(is);
1135
1136                         m_hp = result_hp;
1137                 }
1138                 else if(cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS)
1139                 {
1140                         m_armor_groups.clear();
1141                         int armor_groups_size = readU16(is);
1142                         for(int i=0; i<armor_groups_size; i++){
1143                                 std::string name = deSerializeString(is);
1144                                 int rating = readS16(is);
1145                                 m_armor_groups[name] = rating;
1146                         }
1147                 }
1148         }
1149
1150         bool directReportPunch(v3f dir, const ItemStack *punchitem=NULL,
1151                         float time_from_last_punch=1000000)
1152         {
1153                 assert(punchitem);
1154                 const ToolCapabilities *toolcap =
1155                                 &punchitem->getToolCapabilities(m_gamedef->idef());
1156                 PunchDamageResult result = getPunchDamage(
1157                                 m_armor_groups,
1158                                 toolcap,
1159                                 punchitem,
1160                                 time_from_last_punch);
1161
1162                 if(result.did_punch && result.damage != 0)
1163                 {
1164                         if(result.damage < m_hp){
1165                                 m_hp -= result.damage;
1166                         } else {
1167                                 m_hp = 0;
1168                                 // TODO: Execute defined fast response
1169                                 // As there is no definition, make a smoke puff
1170                                 ClientSimpleObject *simple = createSmokePuff(
1171                                                 m_smgr, m_env, m_position,
1172                                                 m_prop.visual_size * BS);
1173                                 m_env->addSimpleObject(simple);
1174                         }
1175                         // TODO: Execute defined fast response
1176                         // Flashing shall suffice as there is no definition
1177                         m_reset_textures_timer = 0.05;
1178                         if(result.damage >= 2)
1179                                 m_reset_textures_timer += 0.05 * result.damage;
1180                         updateTextures("^[brighten");
1181                 }
1182
1183                 return false;
1184         }
1185
1186         std::string debugInfoText()
1187         {
1188                 std::ostringstream os(std::ios::binary);
1189                 os<<"GenericCAO hp="<<m_hp<<"\n";
1190                 os<<"armor={";
1191                 for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1192                                 i != m_armor_groups.end(); i++){
1193                         os<<i->first<<"="<<i->second<<", ";
1194                 }
1195                 os<<"}";
1196                 return os.str();
1197         }
1198 };
1199
1200 // Prototype
1201 GenericCAO proto_GenericCAO(NULL, NULL);
1202
1203