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 General Public License as published by
   7 the Free Software Foundation; either version 2 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 General Public License for more details.
  14
  15 You should have received a copy of the GNU 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 "utility.h" // For IntervalLimiter
  34 #include "itemdef.h"
  35 #include "tool.h"
  36 #include "content_cso.h"
  37 #include "sound.h"
  38 #include "nodedef.h"
  39 class Settings;
  40 struct ToolCapabilities;
  41
  42 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
  43
  44 core::map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
  45
  46 /*
  47         SmoothTranslator
  48 */
  49
  50 struct SmoothTranslator
  51 {
  52         v3f vect_old;
  53         v3f vect_show;
  54         v3f vect_aim;
  55         f32 anim_counter;
  56         f32 anim_time;
  57         f32 anim_time_counter;
  58         bool aim_is_end;
  59
  60         SmoothTranslator():
  61                 vect_old(0,0,0),
  62                 vect_show(0,0,0),
  63                 vect_aim(0,0,0),
  64                 anim_counter(0),
  65                 anim_time(0),
  66                 anim_time_counter(0),
  67                 aim_is_end(true)
  68         {}
  69
  70         void init(v3f vect)
  71         {
  72                 vect_old = vect;
  73                 vect_show = vect;
  74                 vect_aim = vect;
  75                 anim_counter = 0;
  76                 anim_time = 0;
  77                 anim_time_counter = 0;
  78                 aim_is_end = true;
  79         }
  80
  81         void sharpen()
  82         {
  83                 init(vect_show);
  84         }
  85
  86         void update(v3f vect_new, bool is_end_position=false, float update_interval=-1)
  87         {
  88                 aim_is_end = is_end_position;
  89                 vect_old = vect_show;
  90                 vect_aim = vect_new;
  91                 if(update_interval > 0){
  92                         anim_time = update_interval;
  93                 } else {
  94                         if(anim_time < 0.001 || anim_time > 1.0)
  95                                 anim_time = anim_time_counter;
  96                         else
  97                                 anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
  98                 }
  99                 anim_time_counter = 0;
 100                 anim_counter = 0;
 101         }
 102
 103         void translate(f32 dtime)
 104         {
 105                 anim_time_counter = anim_time_counter + dtime;
 106                 anim_counter = anim_counter + dtime;
 107                 v3f vect_move = vect_aim - vect_old;
 108                 f32 moveratio = 1.0;
 109                 if(anim_time > 0.001)
 110                         moveratio = anim_time_counter / anim_time;
 111                 // Move a bit less than should, to avoid oscillation
 112                 moveratio = moveratio * 0.8;
 113                 float move_end = 1.5;
 114                 if(aim_is_end)
 115                         move_end = 1.0;
 116                 if(moveratio > move_end)
 117                         moveratio = move_end;
 118                 vect_show = vect_old + vect_move * moveratio;
 119         }
 120
 121         bool is_moving()
 122         {
 123                 return ((anim_time_counter / anim_time) < 1.4);
 124         }
 125 };
 126
 127 /*
 128         Other stuff
 129 */
 130
 131 static void setBillboardTextureMatrix(scene::IBillboardSceneNode *bill,
 132                 float txs, float tys, int col, int row)
 133 {
 134         video::SMaterial& material = bill->getMaterial(0);
 135         core::matrix4& matrix = material.getTextureMatrix(0);
 136         matrix.setTextureTranslate(txs*col, tys*row);
 137         matrix.setTextureScale(txs, tys);
 138 }
 139
 140 /*
 141         TestCAO
 142 */
 143
 144 class TestCAO : public ClientActiveObject
 145 {
 146 public:
 147         TestCAO(IGameDef *gamedef, ClientEnvironment *env);
 148         virtual ~TestCAO();
 149
 150         u8 getType() const
 151         {
 152                 return ACTIVEOBJECT_TYPE_TEST;
 153         }
 154
 155         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 156
 157         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 158                         IrrlichtDevice *irr);
 159         void removeFromScene();
 160         void updateLight(u8 light_at_pos);
 161         v3s16 getLightPosition();
 162         void updateNodePos();
 163
 164         void step(float dtime, ClientEnvironment *env);
 165
 166         void processMessage(const std::string &data);
 167
 168 private:
 169         scene::IMeshSceneNode *m_node;
 170         v3f m_position;
 171 };
 172
 173 // Prototype
 174 TestCAO proto_TestCAO(NULL, NULL);
 175
 176 TestCAO::TestCAO(IGameDef *gamedef, ClientEnvironment *env):
 177         ClientActiveObject(0, gamedef, env),
 178         m_node(NULL),
 179         m_position(v3f(0,10*BS,0))
 180 {
 181         ClientActiveObject::registerType(getType(), create);
 182 }
 183
 184 TestCAO::~TestCAO()
 185 {
 186 }
 187
 188 ClientActiveObject* TestCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 189 {
 190         return new TestCAO(gamedef, env);
 191 }
 192
 193 void TestCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 194                         IrrlichtDevice *irr)
 195 {
 196         if(m_node != NULL)
 197                 return;
 198
 199         //video::IVideoDriver* driver = smgr->getVideoDriver();
 200
 201         scene::SMesh *mesh = new scene::SMesh();
 202         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 203         video::SColor c(255,255,255,255);
 204         video::S3DVertex vertices[4] =
 205         {
 206                 video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 207                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 208                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 209                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
 210         };
 211         u16 indices[] = {0,1,2,2,3,0};
 212         buf->append(vertices, 4, indices, 6);
 213         // Set material
 214         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 215         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 216         buf->getMaterial().setTexture(0, tsrc->getTextureRaw("rat.png"));
 217         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 218         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 219         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 220         // Add to mesh
 221         mesh->addMeshBuffer(buf);
 222         buf->drop();
 223         m_node = smgr->addMeshSceneNode(mesh, NULL);
 224         mesh->drop();
 225         updateNodePos();
 226 }
 227
 228 void TestCAO::removeFromScene()
 229 {
 230         if(m_node == NULL)
 231                 return;
 232
 233         m_node->remove();
 234         m_node = NULL;
 235 }
 236
 237 void TestCAO::updateLight(u8 light_at_pos)
 238 {
 239 }
 240
 241 v3s16 TestCAO::getLightPosition()
 242 {
 243         return floatToInt(m_position, BS);
 244 }
 245
 246 void TestCAO::updateNodePos()
 247 {
 248         if(m_node == NULL)
 249                 return;
 250
 251         m_node->setPosition(m_position);
 252         //m_node->setRotation(v3f(0, 45, 0));
 253 }
 254
 255 void TestCAO::step(float dtime, ClientEnvironment *env)
 256 {
 257         if(m_node)
 258         {
 259                 v3f rot = m_node->getRotation();
 260                 //infostream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
 261                 rot.Y += dtime * 180;
 262                 m_node->setRotation(rot);
 263         }
 264 }
 265
 266 void TestCAO::processMessage(const std::string &data)
 267 {
 268         infostream<<"TestCAO: Got data: "<<data<<std::endl;
 269         std::istringstream is(data, std::ios::binary);
 270         u16 cmd;
 271         is>>cmd;
 272         if(cmd == 0)
 273         {
 274                 v3f newpos;
 275                 is>>newpos.X;
 276                 is>>newpos.Y;
 277                 is>>newpos.Z;
 278                 m_position = newpos;
 279                 updateNodePos();
 280         }
 281 }
 282
 283 /*
 284         ItemCAO
 285 */
 286
 287 class ItemCAO : public ClientActiveObject
 288 {
 289 public:
 290         ItemCAO(IGameDef *gamedef, ClientEnvironment *env);
 291         virtual ~ItemCAO();
 292
 293         u8 getType() const
 294         {
 295                 return ACTIVEOBJECT_TYPE_ITEM;
 296         }
 297
 298         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 299
 300         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 301                         IrrlichtDevice *irr);
 302         void removeFromScene();
 303         void updateLight(u8 light_at_pos);
 304         v3s16 getLightPosition();
 305         void updateNodePos();
 306         void updateInfoText();
 307         void updateTexture();
 308
 309         void step(float dtime, ClientEnvironment *env);
 310
 311         void processMessage(const std::string &data);
 312
 313         void initialize(const std::string &data);
 314
 315         core::aabbox3d<f32>* getSelectionBox()
 316                 {return &m_selection_box;}
 317         v3f getPosition()
 318                 {return m_position;}
 319
 320         std::string infoText()
 321                 {return m_infotext;}
 322
 323 private:
 324         core::aabbox3d<f32> m_selection_box;
 325         scene::IMeshSceneNode *m_node;
 326         v3f m_position;
 327         std::string m_itemstring;
 328         std::string m_infotext;
 329 };
 330
 331 #include "inventory.h"
 332
 333 // Prototype
 334 ItemCAO proto_ItemCAO(NULL, NULL);
 335
 336 ItemCAO::ItemCAO(IGameDef *gamedef, ClientEnvironment *env):
 337         ClientActiveObject(0, gamedef, env),
 338         m_selection_box(-BS/3.,0.0,-BS/3., BS/3.,BS*2./3.,BS/3.),
 339         m_node(NULL),
 340         m_position(v3f(0,10*BS,0))
 341 {
 342         if(!gamedef && !env)
 343         {
 344                 ClientActiveObject::registerType(getType(), create);
 345         }
 346 }
 347
 348 ItemCAO::~ItemCAO()
 349 {
 350 }
 351
 352 ClientActiveObject* ItemCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 353 {
 354         return new ItemCAO(gamedef, env);
 355 }
 356
 357 void ItemCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 358                         IrrlichtDevice *irr)
 359 {
 360         if(m_node != NULL)
 361                 return;
 362
 363         //video::IVideoDriver* driver = smgr->getVideoDriver();
 364
 365         scene::SMesh *mesh = new scene::SMesh();
 366         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 367         video::SColor c(255,255,255,255);
 368         video::S3DVertex vertices[4] =
 369         {
 370                 /*video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 371                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 372                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 373                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),*/
 374                 video::S3DVertex(BS/3.,0,0, 0,0,0, c, 0,1),
 375                 video::S3DVertex(-BS/3.,0,0, 0,0,0, c, 1,1),
 376                 video::S3DVertex(-BS/3.,0+BS*2./3.,0, 0,0,0, c, 1,0),
 377                 video::S3DVertex(BS/3.,0+BS*2./3.,0, 0,0,0, c, 0,0),
 378         };
 379         u16 indices[] = {0,1,2,2,3,0};
 380         buf->append(vertices, 4, indices, 6);
 381         // Set material
 382         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 383         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 384         // Initialize with a generated placeholder texture
 385         buf->getMaterial().setTexture(0, tsrc->getTextureRaw(""));
 386         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 387         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 388         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 389         // Add to mesh
 390         mesh->addMeshBuffer(buf);
 391         buf->drop();
 392         m_node = smgr->addMeshSceneNode(mesh, NULL);
 393         mesh->drop();
 394         updateNodePos();
 395
 396         /*
 397                 Update image of node
 398         */
 399
 400         updateTexture();
 401 }
 402
 403 void ItemCAO::removeFromScene()
 404 {
 405         if(m_node == NULL)
 406                 return;
 407
 408         m_node->remove();
 409         m_node = NULL;
 410 }
 411
 412 void ItemCAO::updateLight(u8 light_at_pos)
 413 {
 414         if(m_node == NULL)
 415                 return;
 416
 417         u8 li = decode_light(light_at_pos);
 418         video::SColor color(255,li,li,li);
 419         setMeshColor(m_node->getMesh(), color);
 420 }
 421
 422 v3s16 ItemCAO::getLightPosition()
 423 {
 424         return floatToInt(m_position + v3f(0,0.5*BS,0), BS);
 425 }
 426
 427 void ItemCAO::updateNodePos()
 428 {
 429         if(m_node == NULL)
 430                 return;
 431
 432         m_node->setPosition(m_position);
 433 }
 434
 435 void ItemCAO::updateInfoText()
 436 {
 437         try{
 438                 IItemDefManager *idef = m_gamedef->idef();
 439                 ItemStack item;
 440                 item.deSerialize(m_itemstring, idef);
 441                 if(item.isKnown(idef))
 442                         m_infotext = item.getDefinition(idef).description;
 443                 else
 444                         m_infotext = "Unknown item: '" + m_itemstring + "'";
 445                 if(item.count >= 2)
 446                         m_infotext += " (" + itos(item.count) + ")";
 447         }
 448         catch(SerializationError &e)
 449         {
 450                 m_infotext = "Unknown item: '" + m_itemstring + "'";
 451         }
 452 }
 453
 454 void ItemCAO::updateTexture()
 455 {
 456         if(m_node == NULL)
 457                 return;
 458
 459         // Create an inventory item to see what is its image
 460         std::istringstream is(m_itemstring, std::ios_base::binary);
 461         video::ITexture *texture = NULL;
 462         try{
 463                 IItemDefManager *idef = m_gamedef->idef();
 464                 ItemStack item;
 465                 item.deSerialize(is, idef);
 466                 texture = item.getDefinition(idef).inventory_texture;
 467         }
 468         catch(SerializationError &e)
 469         {
 470                 infostream<<"WARNING: "<<__FUNCTION_NAME
 471                                 <<": error deSerializing itemstring \""
 472                                 <<m_itemstring<<std::endl;
 473         }
 474
 475         // Set meshbuffer texture
 476         m_node->getMaterial(0).setTexture(0, texture);
 477 }
 478
 479
 480 void ItemCAO::step(float dtime, ClientEnvironment *env)
 481 {
 482         if(m_node)
 483         {
 484                 /*v3f rot = m_node->getRotation();
 485                 rot.Y += dtime * 120;
 486                 m_node->setRotation(rot);*/
 487                 LocalPlayer *player = env->getLocalPlayer();
 488                 assert(player);
 489                 v3f rot = m_node->getRotation();
 490                 rot.Y = 180.0 - (player->getYaw());
 491                 m_node->setRotation(rot);
 492         }
 493 }
 494
 495 void ItemCAO::processMessage(const std::string &data)
 496 {
 497         //infostream<<"ItemCAO: Got message"<<std::endl;
 498         std::istringstream is(data, std::ios::binary);
 499         // command
 500         u8 cmd = readU8(is);
 501         if(cmd == 0)
 502         {
 503                 // pos
 504                 m_position = readV3F1000(is);
 505                 updateNodePos();
 506         }
 507         if(cmd == 1)
 508         {
 509                 // itemstring
 510                 m_itemstring = deSerializeString(is);
 511                 updateInfoText();
 512                 updateTexture();
 513         }
 514 }
 515
 516 void ItemCAO::initialize(const std::string &data)
 517 {
 518         infostream<<"ItemCAO: Got init data"<<std::endl;
 519
 520         {
 521                 std::istringstream is(data, std::ios::binary);
 522                 // version
 523                 u8 version = readU8(is);
 524                 // check version
 525                 if(version != 0)
 526                         return;
 527                 // pos
 528                 m_position = readV3F1000(is);
 529                 // itemstring
 530                 m_itemstring = deSerializeString(is);
 531         }
 532
 533         updateNodePos();
 534         updateInfoText();
 535 }
 536
 537 /*
 538         GenericCAO
 539 */
 540
 541 #include "genericobject.h"
 542
 543 class GenericCAO : public ClientActiveObject
 544 {
 545 private:
 546         // Only set at initialization
 547         std::string m_name;
 548         bool m_is_player;
 549         bool m_is_local_player; // determined locally
 550         // Property-ish things
 551         ObjectProperties m_prop;
 552         //
 553         scene::ISceneManager *m_smgr;
 554         IrrlichtDevice *m_irr;
 555         core::aabbox3d<f32> m_selection_box;
 556         scene::IMeshSceneNode *m_meshnode;
 557         scene::IBillboardSceneNode *m_spritenode;
 558         scene::ITextSceneNode* m_textnode;
 559         v3f m_position;
 560         v3f m_velocity;
 561         v3f m_acceleration;
 562         float m_yaw;
 563         s16 m_hp;
 564         SmoothTranslator pos_translator;
 565         // Spritesheet/animation stuff
 566         v2f m_tx_size;
 567         v2s16 m_tx_basepos;
 568         bool m_initial_tx_basepos_set;
 569         bool m_tx_select_horiz_by_yawpitch;
 570         int m_anim_frame;
 571         int m_anim_num_frames;
 572         float m_anim_framelength;
 573         float m_anim_timer;
 574         ItemGroupList m_armor_groups;
 575         float m_reset_textures_timer;
 576         bool m_visuals_expired;
 577         float m_step_distance_counter;
 578
 579 public:
 580         GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
 581                 ClientActiveObject(0, gamedef, env),
 582                 //
 583                 m_is_player(false),
 584                 m_is_local_player(false),
 585                 //
 586                 m_smgr(NULL),
 587                 m_irr(NULL),
 588                 m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
 589                 m_meshnode(NULL),
 590                 m_spritenode(NULL),
 591                 m_textnode(NULL),
 592                 m_position(v3f(0,10*BS,0)),
 593                 m_velocity(v3f(0,0,0)),
 594                 m_acceleration(v3f(0,0,0)),
 595                 m_yaw(0),
 596                 m_hp(1),
 597                 m_tx_size(1,1),
 598                 m_tx_basepos(0,0),
 599                 m_initial_tx_basepos_set(false),
 600                 m_tx_select_horiz_by_yawpitch(false),
 601                 m_anim_frame(0),
 602                 m_anim_num_frames(1),
 603                 m_anim_framelength(0.2),
 604                 m_anim_timer(0),
 605                 m_reset_textures_timer(-1),
 606                 m_visuals_expired(false),
 607                 m_step_distance_counter(0)
 608         {
 609                 if(gamedef == NULL)
 610                         ClientActiveObject::registerType(getType(), create);
 611         }
 612
 613         void initialize(const std::string &data)
 614         {
 615                 infostream<<"GenericCAO: Got init data"<<std::endl;
 616                 std::istringstream is(data, std::ios::binary);
 617                 // version
 618                 u8 version = readU8(is);
 619                 // check version
 620                 if(version != 0){
 621                         errorstream<<"GenericCAO: Unsupported init data version"
 622                                         <<std::endl;
 623                         return;
 624                 }
 625                 m_name = deSerializeString(is);
 626                 m_is_player = readU8(is);
 627                 m_position = readV3F1000(is);
 628                 m_yaw = readF1000(is);
 629                 m_hp = readS16(is);
 630
 631                 int num_messages = readU8(is);
 632                 for(int i=0; i<num_messages; i++){
 633                         std::string message = deSerializeLongString(is);
 634                         processMessage(message);
 635                 }
 636
 637                 pos_translator.init(m_position);
 638                 updateNodePos();
 639
 640                 if(m_is_player){
 641                         Player *player = m_env->getPlayer(m_name.c_str());
 642                         if(player && player->isLocal()){
 643                                 m_is_local_player = true;
 644                         }
 645                 }
 646         }
 647
 648         ~GenericCAO()
 649         {
 650         }
 651
 652         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env)
 653         {
 654                 return new GenericCAO(gamedef, env);
 655         }
 656
 657         u8 getType() const
 658         {
 659                 return ACTIVEOBJECT_TYPE_GENERIC;
 660         }
 661         core::aabbox3d<f32>* getSelectionBox()
 662         {
 663                 if(!m_prop.is_visible || m_is_local_player)
 664                         return NULL;
 665                 return &m_selection_box;
 666         }
 667         v3f getPosition()
 668         {
 669                 return pos_translator.vect_show;
 670         }
 671
 672         void removeFromScene()
 673         {
 674                 if(m_meshnode){
 675                         m_meshnode->remove();
 676                         m_meshnode = NULL;
 677                 }
 678                 if(m_spritenode){
 679                         m_spritenode->remove();
 680                         m_spritenode = NULL;
 681                 }
 682         }
 683
 684         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 685                         IrrlichtDevice *irr)
 686         {
 687                 m_smgr = smgr;
 688                 m_irr = irr;
 689
 690                 if(m_meshnode != NULL || m_spritenode != NULL)
 691                         return;
 692
 693                 m_visuals_expired = false;
 694
 695                 if(!m_prop.is_visible || m_is_local_player)
 696                         return;
 697
 698                 //video::IVideoDriver* driver = smgr->getVideoDriver();
 699
 700                 if(m_prop.visual == "sprite"){
 701                         infostream<<"GenericCAO::addToScene(): single_sprite"<<std::endl;
 702                         m_spritenode = smgr->addBillboardSceneNode(
 703                                         NULL, v2f(1, 1), v3f(0,0,0), -1);
 704                         m_spritenode->setMaterialTexture(0,
 705                                         tsrc->getTextureRaw("unknown_block.png"));
 706                         m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
 707                         m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 708                         m_spritenode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
 709                         m_spritenode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 710                         m_spritenode->setColor(video::SColor(255,0,0,0));
 711                         m_spritenode->setVisible(false); /* Set visible when brightness is known */
 712                         m_spritenode->setSize(m_prop.visual_size*BS);
 713                         {
 714                                 const float txs = 1.0 / 1;
 715                                 const float tys = 1.0 / 1;
 716                                 setBillboardTextureMatrix(m_spritenode,
 717                                                 txs, tys, 0, 0);
 718                         }
 719                 }
 720                 else if(m_prop.visual == "upright_sprite")
 721                 {
 722                         scene::SMesh *mesh = new scene::SMesh();
 723                         double dx = BS*m_prop.visual_size.X/2;
 724                         double dy = BS*m_prop.visual_size.Y/2;
 725                         { // Front
 726                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 727                         video::SColor c(255,255,255,255);
 728                         video::S3DVertex vertices[4] =
 729                         {
 730                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 731                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 732                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 733                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 734                         };
 735                         u16 indices[] = {0,1,2,2,3,0};
 736                         buf->append(vertices, 4, indices, 6);
 737                         // Set material
 738                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 739                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 740                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 741                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 742                         // Add to mesh
 743                         mesh->addMeshBuffer(buf);
 744                         buf->drop();
 745                         }
 746                         { // Back
 747                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 748                         video::SColor c(255,255,255,255);
 749                         video::S3DVertex vertices[4] =
 750                         {
 751                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 752                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 753                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 754                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 755                         };
 756                         u16 indices[] = {0,1,2,2,3,0};
 757                         buf->append(vertices, 4, indices, 6);
 758                         // Set material
 759                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 760                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 761                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 762                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 763                         // Add to mesh
 764                         mesh->addMeshBuffer(buf);
 765                         buf->drop();
 766                         }
 767                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 768                         mesh->drop();
 769                         // Set it to use the materials of the meshbuffers directly.
 770                         // This is needed for changing the texture in the future
 771                         m_meshnode->setReadOnlyMaterials(true);
 772                 }
 773                 else if(m_prop.visual == "cube"){
 774                         infostream<<"GenericCAO::addToScene(): cube"<<std::endl;
 775                         scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 776                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 777                         mesh->drop();
 778
 779                         m_meshnode->setScale(v3f(1));
 780                         // Will be shown when we know the brightness
 781                         m_meshnode->setVisible(false);
 782                 } else {
 783                         infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 784                                         <<"\" not supported"<<std::endl;
 785                 }
 786                 updateTextures("");
 787
 788                 scene::ISceneNode *node = NULL;
 789                 if(m_spritenode)
 790                         node = m_spritenode;
 791                 else if(m_meshnode)
 792                         node = m_meshnode;
 793                 if(node && m_is_player && !m_is_local_player){
 794                         // Add a text node for showing the name
 795                         gui::IGUIEnvironment* gui = irr->getGUIEnvironment();
 796                         std::wstring wname = narrow_to_wide(m_name);
 797                         m_textnode = smgr->addTextSceneNode(gui->getBuiltInFont(),
 798                                         wname.c_str(), video::SColor(255,255,255,255), node);
 799                         m_textnode->setPosition(v3f(0, BS*1.1, 0));
 800                 }
 801
 802                 updateNodePos();
 803         }
 804
 805         void expireVisuals()
 806         {
 807                 m_visuals_expired = true;
 808         }
 809
 810         void updateLight(u8 light_at_pos)
 811         {
 812                 bool is_visible = (m_hp != 0);
 813                 u8 li = decode_light(light_at_pos);
 814                 video::SColor color(255,li,li,li);
 815                 if(m_meshnode){
 816                         setMeshColor(m_meshnode->getMesh(), color);
 817                         m_meshnode->setVisible(is_visible);
 818                 }
 819                 if(m_spritenode){
 820                         m_spritenode->setColor(color);
 821                         m_spritenode->setVisible(is_visible);
 822                 }
 823         }
 824
 825         v3s16 getLightPosition()
 826         {
 827                 return floatToInt(m_position, BS);
 828         }
 829
 830         void updateNodePos()
 831         {
 832                 if(m_meshnode){
 833                         m_meshnode->setPosition(pos_translator.vect_show);
 834                         v3f rot = m_meshnode->getRotation();
 835                         rot.Y = -m_yaw;
 836                         m_meshnode->setRotation(rot);
 837                 }
 838                 if(m_spritenode){
 839                         m_spritenode->setPosition(pos_translator.vect_show);
 840                 }
 841         }
 842
 843         void step(float dtime, ClientEnvironment *env)
 844         {
 845                 v3f lastpos = pos_translator.vect_show;
 846
 847                 if(m_visuals_expired && m_smgr && m_irr){
 848                         m_visuals_expired = false;
 849                         removeFromScene();
 850                         addToScene(m_smgr, m_gamedef->tsrc(), m_irr);
 851                 }
 852
 853                 if(m_prop.physical){
 854                         core::aabbox3d<f32> box = m_prop.collisionbox;
 855                         box.MinEdge *= BS;
 856                         box.MaxEdge *= BS;
 857                         collisionMoveResult moveresult;
 858                         f32 pos_max_d = BS*0.25; // Distance per iteration
 859                         v3f p_pos = m_position;
 860                         v3f p_velocity = m_velocity;
 861                         IGameDef *gamedef = env->getGameDef();
 862                         moveresult = collisionMovePrecise(&env->getMap(), gamedef,
 863                                         pos_max_d, box, dtime, p_pos, p_velocity);
 864                         // Apply results
 865                         m_position = p_pos;
 866                         m_velocity = p_velocity;
 867
 868                         bool is_end_position = moveresult.collides;
 869                         pos_translator.update(m_position, is_end_position, dtime);
 870                         pos_translator.translate(dtime);
 871                         updateNodePos();
 872
 873                         m_velocity += dtime * m_acceleration;
 874                 } else {
 875                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
 876                         m_velocity += dtime * m_acceleration;
 877                         pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
 878                         pos_translator.translate(dtime);
 879                         updateNodePos();
 880                 }
 881
 882                 float moved = lastpos.getDistanceFrom(pos_translator.vect_show);
 883                 m_step_distance_counter += moved;
 884                 if(m_step_distance_counter > 1.5*BS){
 885                         m_step_distance_counter = 0;
 886                         if(!m_is_local_player && m_prop.makes_footstep_sound){
 887                                 INodeDefManager *ndef = m_gamedef->ndef();
 888                                 v3s16 p = floatToInt(getPosition()+v3f(0,-0.5*BS, 0), BS);
 889                                 MapNode n = m_env->getMap().getNodeNoEx(p);
 890                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
 891                                 m_gamedef->sound()->playSoundAt(spec, false, getPosition());
 892                         }
 893                 }
 894
 895                 m_anim_timer += dtime;
 896                 if(m_anim_timer >= m_anim_framelength){
 897                         m_anim_timer -= m_anim_framelength;
 898                         m_anim_frame++;
 899                         if(m_anim_frame >= m_anim_num_frames)
 900                                 m_anim_frame = 0;
 901                 }
 902
 903                 updateTexturePos();
 904
 905                 if(m_reset_textures_timer >= 0){
 906                         m_reset_textures_timer -= dtime;
 907                         if(m_reset_textures_timer <= 0){
 908                                 m_reset_textures_timer = -1;
 909                                 updateTextures("");
 910                         }
 911                 }
 912         }
 913
 914         void updateTexturePos()
 915         {
 916                 if(m_spritenode){
 917                         scene::ICameraSceneNode* camera =
 918                                         m_spritenode->getSceneManager()->getActiveCamera();
 919                         if(!camera)
 920                                 return;
 921                         v3f cam_to_entity = m_spritenode->getAbsolutePosition()
 922                                         - camera->getAbsolutePosition();
 923                         cam_to_entity.normalize();
 924
 925                         int row = m_tx_basepos.Y;
 926                         int col = m_tx_basepos.X;
 927
 928                         if(m_tx_select_horiz_by_yawpitch)
 929                         {
 930                                 if(cam_to_entity.Y > 0.75)
 931                                         col += 5;
 932                                 else if(cam_to_entity.Y < -0.75)
 933                                         col += 4;
 934                                 else{
 935                                         float mob_dir = atan2(cam_to_entity.Z, cam_to_entity.X) / PI * 180.;
 936                                         float dir = mob_dir - m_yaw;
 937                                         dir = wrapDegrees_180(dir);
 938                                         //infostream<<"id="<<m_id<<" dir="<<dir<<std::endl;
 939                                         if(fabs(wrapDegrees_180(dir - 0)) <= 45.1)
 940                                                 col += 2;
 941                                         else if(fabs(wrapDegrees_180(dir - 90)) <= 45.1)
 942                                                 col += 3;
 943                                         else if(fabs(wrapDegrees_180(dir - 180)) <= 45.1)
 944                                                 col += 0;
 945                                         else if(fabs(wrapDegrees_180(dir + 90)) <= 45.1)
 946                                                 col += 1;
 947                                         else
 948                                                 col += 4;
 949                                 }
 950                         }
 951
 952                         // Animation goes downwards
 953                         row += m_anim_frame;
 954
 955                         float txs = m_tx_size.X;
 956                         float tys = m_tx_size.Y;
 957                         setBillboardTextureMatrix(m_spritenode,
 958                                         txs, tys, col, row);
 959                 }
 960         }
 961
 962         void updateTextures(const std::string &mod)
 963         {
 964                 ITextureSource *tsrc = m_gamedef->tsrc();
 965
 966                 if(m_spritenode)
 967                 {
 968                         if(m_prop.visual == "sprite")
 969                         {
 970                                 std::string texturestring = "unknown_block.png";
 971                                 if(m_prop.textures.size() >= 1)
 972                                         texturestring = m_prop.textures[0];
 973                                 texturestring += mod;
 974                                 m_spritenode->setMaterialTexture(0,
 975                                                 tsrc->getTextureRaw(texturestring));
 976                         }
 977                 }
 978                 if(m_meshnode)
 979                 {
 980                         if(m_prop.visual == "cube")
 981                         {
 982                                 for (u32 i = 0; i < 6; ++i)
 983                                 {
 984                                         std::string texturestring = "unknown_block.png";
 985                                         if(m_prop.textures.size() > i)
 986                                                 texturestring = m_prop.textures[i];
 987                                         texturestring += mod;
 988                                         AtlasPointer ap = tsrc->getTexture(texturestring);
 989
 990                                         // Get the tile texture and atlas transformation
 991                                         video::ITexture* atlas = ap.atlas;
 992                                         v2f pos = ap.pos;
 993                                         v2f size = ap.size;
 994
 995                                         // Set material flags and texture
 996                                         video::SMaterial& material = m_meshnode->getMaterial(i);
 997                                         material.setFlag(video::EMF_LIGHTING, false);
 998                                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 999                                         material.setTexture(0, atlas);
1000                                         material.getTextureMatrix(0).setTextureTranslate(pos.X, pos.Y);
1001                                         material.getTextureMatrix(0).setTextureScale(size.X, size.Y);
1002                                 }
1003                         }
1004                         else if(m_prop.visual == "upright_sprite")
1005                         {
1006                                 scene::IMesh *mesh = m_meshnode->getMesh();
1007                                 {
1008                                         std::string tname = "unknown_object.png";
1009                                         if(m_prop.textures.size() >= 1)
1010                                                 tname = m_prop.textures[0];
1011                                         tname += mod;
1012                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1013                                         buf->getMaterial().setTexture(0,
1014                                                         tsrc->getTextureRaw(tname));
1015                                 }
1016                                 {
1017                                         std::string tname = "unknown_object.png";
1018                                         if(m_prop.textures.size() >= 2)
1019                                                 tname = m_prop.textures[1];
1020                                         else if(m_prop.textures.size() >= 1)
1021                                                 tname = m_prop.textures[0];
1022                                         tname += mod;
1023                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1024                                         buf->getMaterial().setTexture(0,
1025                                                         tsrc->getTextureRaw(tname));
1026                                 }
1027                         }
1028                 }
1029         }
1030
1031         void processMessage(const std::string &data)
1032         {
1033                 //infostream<<"GenericCAO: Got message"<<std::endl;
1034                 std::istringstream is(data, std::ios::binary);
1035                 // command
1036                 u8 cmd = readU8(is);
1037                 if(cmd == GENERIC_CMD_SET_PROPERTIES)
1038                 {
1039                         m_prop = gob_read_set_properties(is);
1040
1041                         m_selection_box = m_prop.collisionbox;
1042                         m_selection_box.MinEdge *= BS;
1043                         m_selection_box.MaxEdge *= BS;
1044
1045                         m_tx_size.X = 1.0 / m_prop.spritediv.X;
1046                         m_tx_size.Y = 1.0 / m_prop.spritediv.Y;
1047
1048                         if(!m_initial_tx_basepos_set){
1049                                 m_initial_tx_basepos_set = true;
1050                                 m_tx_basepos = m_prop.initial_sprite_basepos;
1051                         }
1052
1053                         expireVisuals();
1054                 }
1055                 else if(cmd == GENERIC_CMD_UPDATE_POSITION)
1056                 {
1057                         m_position = readV3F1000(is);
1058                         m_velocity = readV3F1000(is);
1059                         m_acceleration = readV3F1000(is);
1060                         m_yaw = readF1000(is);
1061                         bool do_interpolate = readU8(is);
1062                         bool is_end_position = readU8(is);
1063                         float update_interval = readF1000(is);
1064
1065                         if(do_interpolate){
1066                                 if(!m_prop.physical)
1067                                         pos_translator.update(m_position, is_end_position, update_interval);
1068                         } else {
1069                                 pos_translator.init(m_position);
1070                         }
1071                         updateNodePos();
1072                 }
1073                 else if(cmd == GENERIC_CMD_SET_TEXTURE_MOD)
1074                 {
1075                         std::string mod = deSerializeString(is);
1076                         updateTextures(mod);
1077                 }
1078                 else if(cmd == GENERIC_CMD_SET_SPRITE)
1079                 {
1080                         v2s16 p = readV2S16(is);
1081                         int num_frames = readU16(is);
1082                         float framelength = readF1000(is);
1083                         bool select_horiz_by_yawpitch = readU8(is);
1084
1085                         m_tx_basepos = p;
1086                         m_anim_num_frames = num_frames;
1087                         m_anim_framelength = framelength;
1088                         m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1089
1090                         updateTexturePos();
1091                 }
1092                 else if(cmd == GENERIC_CMD_PUNCHED)
1093                 {
1094                         /*s16 damage =*/ readS16(is);
1095                         s16 result_hp = readS16(is);
1096
1097                         m_hp = result_hp;
1098                 }
1099                 else if(cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS)
1100                 {
1101                         m_armor_groups.clear();
1102                         int armor_groups_size = readU16(is);
1103                         for(int i=0; i<armor_groups_size; i++){
1104                                 std::string name = deSerializeString(is);
1105                                 int rating = readS16(is);
1106                                 m_armor_groups[name] = rating;
1107                         }
1108                 }
1109         }
1110
1111         bool directReportPunch(v3f dir, const ItemStack *punchitem=NULL,
1112                         float time_from_last_punch=1000000)
1113         {
1114                 assert(punchitem);
1115                 const ToolCapabilities *toolcap =
1116                                 &punchitem->getToolCapabilities(m_gamedef->idef());
1117                 PunchDamageResult result = getPunchDamage(
1118                                 m_armor_groups,
1119                                 toolcap,
1120                                 punchitem,
1121                                 time_from_last_punch);
1122
1123                 if(result.did_punch && result.damage != 0)
1124                 {
1125                         if(result.damage < m_hp){
1126                                 m_hp -= result.damage;
1127                         } else {
1128                                 m_hp = 0;
1129                                 // TODO: Execute defined fast response
1130                                 // As there is no definition, make a smoke puff
1131                                 ClientSimpleObject *simple = createSmokePuff(
1132                                                 m_smgr, m_env, m_position,
1133                                                 m_prop.visual_size * BS);
1134                                 m_env->addSimpleObject(simple);
1135                         }
1136                         // TODO: Execute defined fast response
1137                         // Flashing shall suffice as there is no definition
1138                         m_reset_textures_timer = 0.05;
1139                         if(result.damage >= 2)
1140                                 m_reset_textures_timer += 0.05 * result.damage;
1141                         updateTextures("^[brighten");
1142                 }
1143
1144                 return false;
1145         }
1146
1147         std::string debugInfoText()
1148         {
1149                 std::ostringstream os(std::ios::binary);
1150                 os<<"GenericCAO hp="<<m_hp<<"\n";
1151                 os<<"armor={";
1152                 for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1153                                 i != m_armor_groups.end(); i++){
1154                         os<<i->first<<"="<<i->second<<", ";
1155                 }
1156                 os<<"}";
1157                 return os.str();
1158         }
1159 };
1160
1161 // Prototype
1162 GenericCAO proto_GenericCAO(NULL, NULL);
1163
1164