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         s16 m_hp_max;
 552         bool m_physical;
 553         float m_weight;
 554         core::aabbox3d<f32> m_collisionbox;
 555         std::string m_visual;
 556         v2f m_visual_size;
 557         core::array<std::string> m_textures;
 558         v2s16 m_spritediv;
 559         bool m_is_visible;
 560         bool m_makes_footstep_sound;
 561         //
 562         scene::ISceneManager *m_smgr;
 563         IrrlichtDevice *m_irr;
 564         core::aabbox3d<f32> m_selection_box;
 565         scene::IMeshSceneNode *m_meshnode;
 566         scene::IBillboardSceneNode *m_spritenode;
 567         scene::ITextSceneNode* m_textnode;
 568         v3f m_position;
 569         v3f m_velocity;
 570         v3f m_acceleration;
 571         float m_yaw;
 572         s16 m_hp;
 573         SmoothTranslator pos_translator;
 574         // Spritesheet/animation stuff
 575         v2f m_tx_size;
 576         v2s16 m_tx_basepos;
 577         bool m_tx_select_horiz_by_yawpitch;
 578         int m_anim_frame;
 579         int m_anim_num_frames;
 580         float m_anim_framelength;
 581         float m_anim_timer;
 582         ItemGroupList m_armor_groups;
 583         float m_reset_textures_timer;
 584         bool m_visuals_expired;
 585         float m_step_distance_counter;
 586
 587 public:
 588         GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
 589                 ClientActiveObject(0, gamedef, env),
 590                 //
 591                 m_is_player(false),
 592                 m_is_local_player(false),
 593                 //
 594                 m_hp_max(1),
 595                 m_physical(false),
 596                 m_weight(5),
 597                 m_collisionbox(-0.5,-0.5,-0.5, 0.5,0.5,0.5),
 598                 m_visual("sprite"),
 599                 m_visual_size(1,1),
 600                 m_spritediv(1,1),
 601                 m_is_visible(true),
 602                 m_makes_footstep_sound(false),
 603                 //
 604                 m_smgr(NULL),
 605                 m_irr(NULL),
 606                 m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
 607                 m_meshnode(NULL),
 608                 m_spritenode(NULL),
 609                 m_textnode(NULL),
 610                 m_position(v3f(0,10*BS,0)),
 611                 m_velocity(v3f(0,0,0)),
 612                 m_acceleration(v3f(0,0,0)),
 613                 m_yaw(0),
 614                 m_hp(1),
 615                 m_tx_size(1,1),
 616                 m_tx_basepos(0,0),
 617                 m_tx_select_horiz_by_yawpitch(false),
 618                 m_anim_frame(0),
 619                 m_anim_num_frames(1),
 620                 m_anim_framelength(0.2),
 621                 m_anim_timer(0),
 622                 m_reset_textures_timer(-1),
 623                 m_visuals_expired(false),
 624                 m_step_distance_counter(0)
 625         {
 626                 m_textures.push_back("unknown_object.png");
 627                 if(gamedef == NULL)
 628                         ClientActiveObject::registerType(getType(), create);
 629         }
 630
 631         void initialize(const std::string &data)
 632         {
 633                 infostream<<"GenericCAO: Got init data"<<std::endl;
 634                 std::istringstream is(data, std::ios::binary);
 635                 // version
 636                 u8 version = readU8(is);
 637                 // check version
 638                 if(version != 0){
 639                         errorstream<<"GenericCAO: Unsupported init data version"
 640                                         <<std::endl;
 641                         return;
 642                 }
 643                 m_name = deSerializeString(is);
 644                 m_is_player = readU8(is);
 645                 m_position = readV3F1000(is);
 646                 m_yaw = readF1000(is);
 647                 m_hp = readS16(is);
 648
 649                 int num_messages = readU8(is);
 650                 for(int i=0; i<num_messages; i++){
 651                         std::string message = deSerializeLongString(is);
 652                         processMessage(message);
 653                 }
 654
 655                 pos_translator.init(m_position);
 656                 updateNodePos();
 657
 658                 if(m_is_player){
 659                         Player *player = m_env->getPlayer(m_name.c_str());
 660                         if(player && player->isLocal()){
 661                                 m_is_local_player = true;
 662                         }
 663                 }
 664         }
 665
 666         ~GenericCAO()
 667         {
 668         }
 669
 670         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env)
 671         {
 672                 return new GenericCAO(gamedef, env);
 673         }
 674
 675         u8 getType() const
 676         {
 677                 return ACTIVEOBJECT_TYPE_GENERIC;
 678         }
 679         core::aabbox3d<f32>* getSelectionBox()
 680         {
 681                 if(!m_is_visible || m_is_local_player)
 682                         return NULL;
 683                 return &m_selection_box;
 684         }
 685         v3f getPosition()
 686         {
 687                 return pos_translator.vect_show;
 688         }
 689
 690         void removeFromScene()
 691         {
 692                 if(m_meshnode){
 693                         m_meshnode->remove();
 694                         m_meshnode = NULL;
 695                 }
 696                 if(m_spritenode){
 697                         m_spritenode->remove();
 698                         m_spritenode = NULL;
 699                 }
 700         }
 701
 702         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 703                         IrrlichtDevice *irr)
 704         {
 705                 m_smgr = smgr;
 706                 m_irr = irr;
 707
 708                 if(m_meshnode != NULL || m_spritenode != NULL)
 709                         return;
 710
 711                 m_visuals_expired = false;
 712
 713                 if(!m_is_visible || m_is_local_player)
 714                         return;
 715
 716                 //video::IVideoDriver* driver = smgr->getVideoDriver();
 717
 718                 if(m_visual == "sprite"){
 719                         infostream<<"GenericCAO::addToScene(): single_sprite"<<std::endl;
 720                         m_spritenode = smgr->addBillboardSceneNode(
 721                                         NULL, v2f(1, 1), v3f(0,0,0), -1);
 722                         m_spritenode->setMaterialTexture(0,
 723                                         tsrc->getTextureRaw("unknown_block.png"));
 724                         m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
 725                         m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 726                         m_spritenode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
 727                         m_spritenode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 728                         m_spritenode->setColor(video::SColor(255,0,0,0));
 729                         m_spritenode->setVisible(false); /* Set visible when brightness is known */
 730                         m_spritenode->setSize(m_visual_size*BS);
 731                         {
 732                                 const float txs = 1.0 / 1;
 733                                 const float tys = 1.0 / 1;
 734                                 setBillboardTextureMatrix(m_spritenode,
 735                                                 txs, tys, 0, 0);
 736                         }
 737                 }
 738                 else if(m_visual == "upright_sprite")
 739                 {
 740                         scene::SMesh *mesh = new scene::SMesh();
 741                         double dx = BS*m_visual_size.X/2;
 742                         double dy = BS*m_visual_size.Y/2;
 743                         { // Front
 744                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 745                         video::SColor c(255,255,255,255);
 746                         video::S3DVertex vertices[4] =
 747                         {
 748                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 749                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 750                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 751                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 752                         };
 753                         u16 indices[] = {0,1,2,2,3,0};
 754                         buf->append(vertices, 4, indices, 6);
 755                         // Set material
 756                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 757                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 758                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 759                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 760                         // Add to mesh
 761                         mesh->addMeshBuffer(buf);
 762                         buf->drop();
 763                         }
 764                         { // Back
 765                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 766                         video::SColor c(255,255,255,255);
 767                         video::S3DVertex vertices[4] =
 768                         {
 769                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 770                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 771                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 772                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 773                         };
 774                         u16 indices[] = {0,1,2,2,3,0};
 775                         buf->append(vertices, 4, indices, 6);
 776                         // Set material
 777                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 778                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 779                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 780                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 781                         // Add to mesh
 782                         mesh->addMeshBuffer(buf);
 783                         buf->drop();
 784                         }
 785                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 786                         mesh->drop();
 787                         // Set it to use the materials of the meshbuffers directly.
 788                         // This is needed for changing the texture in the future
 789                         m_meshnode->setReadOnlyMaterials(true);
 790                 }
 791                 else if(m_visual == "cube"){
 792                         infostream<<"GenericCAO::addToScene(): cube"<<std::endl;
 793                         scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 794                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 795                         mesh->drop();
 796
 797                         m_meshnode->setScale(v3f(1));
 798                         // Will be shown when we know the brightness
 799                         m_meshnode->setVisible(false);
 800                 } else {
 801                         infostream<<"GenericCAO::addToScene(): \""<<m_visual
 802                                         <<"\" not supported"<<std::endl;
 803                 }
 804                 updateTextures("");
 805
 806                 scene::ISceneNode *node = NULL;
 807                 if(m_spritenode)
 808                         node = m_spritenode;
 809                 else if(m_meshnode)
 810                         node = m_meshnode;
 811                 if(node && m_is_player && !m_is_local_player){
 812                         // Add a text node for showing the name
 813                         gui::IGUIEnvironment* gui = irr->getGUIEnvironment();
 814                         std::wstring wname = narrow_to_wide(m_name);
 815                         m_textnode = smgr->addTextSceneNode(gui->getBuiltInFont(),
 816                                         wname.c_str(), video::SColor(255,255,255,255), node);
 817                         m_textnode->setPosition(v3f(0, BS*1.1, 0));
 818                 }
 819
 820                 updateNodePos();
 821         }
 822
 823         void expireVisuals()
 824         {
 825                 m_visuals_expired = true;
 826         }
 827
 828         void updateLight(u8 light_at_pos)
 829         {
 830                 bool is_visible = (m_hp != 0);
 831                 u8 li = decode_light(light_at_pos);
 832                 video::SColor color(255,li,li,li);
 833                 if(m_meshnode){
 834                         setMeshColor(m_meshnode->getMesh(), color);
 835                         m_meshnode->setVisible(is_visible);
 836                 }
 837                 if(m_spritenode){
 838                         m_spritenode->setColor(color);
 839                         m_spritenode->setVisible(is_visible);
 840                 }
 841         }
 842
 843         v3s16 getLightPosition()
 844         {
 845                 return floatToInt(m_position, BS);
 846         }
 847
 848         void updateNodePos()
 849         {
 850                 if(m_meshnode){
 851                         m_meshnode->setPosition(pos_translator.vect_show);
 852                         v3f rot = m_meshnode->getRotation();
 853                         rot.Y = -m_yaw;
 854                         m_meshnode->setRotation(rot);
 855                 }
 856                 if(m_spritenode){
 857                         m_spritenode->setPosition(pos_translator.vect_show);
 858                 }
 859         }
 860
 861         void step(float dtime, ClientEnvironment *env)
 862         {
 863                 v3f lastpos = pos_translator.vect_show;
 864
 865                 if(m_visuals_expired && m_smgr && m_irr){
 866                         m_visuals_expired = false;
 867                         removeFromScene();
 868                         addToScene(m_smgr, m_gamedef->tsrc(), m_irr);
 869                 }
 870
 871                 if(m_physical){
 872                         core::aabbox3d<f32> box = m_collisionbox;
 873                         box.MinEdge *= BS;
 874                         box.MaxEdge *= BS;
 875                         collisionMoveResult moveresult;
 876                         f32 pos_max_d = BS*0.25; // Distance per iteration
 877                         v3f p_pos = m_position;
 878                         v3f p_velocity = m_velocity;
 879                         IGameDef *gamedef = env->getGameDef();
 880                         moveresult = collisionMovePrecise(&env->getMap(), gamedef,
 881                                         pos_max_d, box, dtime, p_pos, p_velocity);
 882                         // Apply results
 883                         m_position = p_pos;
 884                         m_velocity = p_velocity;
 885
 886                         bool is_end_position = moveresult.collides;
 887                         pos_translator.update(m_position, is_end_position, dtime);
 888                         pos_translator.translate(dtime);
 889                         updateNodePos();
 890
 891                         m_velocity += dtime * m_acceleration;
 892                 } else {
 893                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
 894                         m_velocity += dtime * m_acceleration;
 895                         pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
 896                         pos_translator.translate(dtime);
 897                         updateNodePos();
 898                 }
 899
 900                 float moved = lastpos.getDistanceFrom(pos_translator.vect_show);
 901                 m_step_distance_counter += moved;
 902                 if(m_step_distance_counter > 1.5*BS){
 903                         m_step_distance_counter = 0;
 904                         if(!m_is_local_player && m_makes_footstep_sound){
 905                                 INodeDefManager *ndef = m_gamedef->ndef();
 906                                 v3s16 p = floatToInt(getPosition()+v3f(0,-0.5*BS, 0), BS);
 907                                 MapNode n = m_env->getMap().getNodeNoEx(p);
 908                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
 909                                 m_gamedef->sound()->playSoundAt(spec, false, getPosition());
 910                         }
 911                 }
 912
 913                 m_anim_timer += dtime;
 914                 if(m_anim_timer >= m_anim_framelength){
 915                         m_anim_timer -= m_anim_framelength;
 916                         m_anim_frame++;
 917                         if(m_anim_frame >= m_anim_num_frames)
 918                                 m_anim_frame = 0;
 919                 }
 920
 921                 updateTexturePos();
 922
 923                 if(m_reset_textures_timer >= 0){
 924                         m_reset_textures_timer -= dtime;
 925                         if(m_reset_textures_timer <= 0){
 926                                 m_reset_textures_timer = -1;
 927                                 updateTextures("");
 928                         }
 929                 }
 930         }
 931
 932         void updateTexturePos()
 933         {
 934                 if(m_spritenode){
 935                         scene::ICameraSceneNode* camera =
 936                                         m_spritenode->getSceneManager()->getActiveCamera();
 937                         if(!camera)
 938                                 return;
 939                         v3f cam_to_entity = m_spritenode->getAbsolutePosition()
 940                                         - camera->getAbsolutePosition();
 941                         cam_to_entity.normalize();
 942
 943                         int row = m_tx_basepos.Y;
 944                         int col = m_tx_basepos.X;
 945
 946                         if(m_tx_select_horiz_by_yawpitch)
 947                         {
 948                                 if(cam_to_entity.Y > 0.75)
 949                                         col += 5;
 950                                 else if(cam_to_entity.Y < -0.75)
 951                                         col += 4;
 952                                 else{
 953                                         float mob_dir = atan2(cam_to_entity.Z, cam_to_entity.X) / PI * 180.;
 954                                         float dir = mob_dir - m_yaw;
 955                                         dir = wrapDegrees_180(dir);
 956                                         //infostream<<"id="<<m_id<<" dir="<<dir<<std::endl;
 957                                         if(fabs(wrapDegrees_180(dir - 0)) <= 45.1)
 958                                                 col += 2;
 959                                         else if(fabs(wrapDegrees_180(dir - 90)) <= 45.1)
 960                                                 col += 3;
 961                                         else if(fabs(wrapDegrees_180(dir - 180)) <= 45.1)
 962                                                 col += 0;
 963                                         else if(fabs(wrapDegrees_180(dir + 90)) <= 45.1)
 964                                                 col += 1;
 965                                         else
 966                                                 col += 4;
 967                                 }
 968                         }
 969
 970                         // Animation goes downwards
 971                         row += m_anim_frame;
 972
 973                         float txs = m_tx_size.X;
 974                         float tys = m_tx_size.Y;
 975                         setBillboardTextureMatrix(m_spritenode,
 976                                         txs, tys, col, row);
 977                 }
 978         }
 979
 980         void updateTextures(const std::string &mod)
 981         {
 982                 ITextureSource *tsrc = m_gamedef->tsrc();
 983
 984                 if(m_spritenode)
 985                 {
 986                         if(m_visual == "sprite")
 987                         {
 988                                 std::string texturestring = "unknown_block.png";
 989                                 if(m_textures.size() >= 1)
 990                                         texturestring = m_textures[0];
 991                                 texturestring += mod;
 992                                 m_spritenode->setMaterialTexture(0,
 993                                                 tsrc->getTextureRaw(texturestring));
 994                         }
 995                 }
 996                 if(m_meshnode)
 997                 {
 998                         if(m_visual == "cube")
 999                         {
1000                                 for (u32 i = 0; i < 6; ++i)
1001                                 {
1002                                         std::string texturestring = "unknown_block.png";
1003                                         if(m_textures.size() > i)
1004                                                 texturestring = m_textures[i];
1005                                         texturestring += mod;
1006                                         AtlasPointer ap = tsrc->getTexture(texturestring);
1007
1008                                         // Get the tile texture and atlas transformation
1009                                         video::ITexture* atlas = ap.atlas;
1010                                         v2f pos = ap.pos;
1011                                         v2f size = ap.size;
1012
1013                                         // Set material flags and texture
1014                                         video::SMaterial& material = m_meshnode->getMaterial(i);
1015                                         material.setFlag(video::EMF_LIGHTING, false);
1016                                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
1017                                         material.setTexture(0, atlas);
1018                                         material.getTextureMatrix(0).setTextureTranslate(pos.X, pos.Y);
1019                                         material.getTextureMatrix(0).setTextureScale(size.X, size.Y);
1020                                 }
1021                         }
1022                         else if(m_visual == "upright_sprite")
1023                         {
1024                                 scene::IMesh *mesh = m_meshnode->getMesh();
1025                                 {
1026                                         std::string tname = "unknown_object.png";
1027                                         if(m_textures.size() >= 1)
1028                                                 tname = m_textures[0];
1029                                         tname += mod;
1030                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1031                                         buf->getMaterial().setTexture(0,
1032                                                         tsrc->getTextureRaw(tname));
1033                                 }
1034                                 {
1035                                         std::string tname = "unknown_object.png";
1036                                         if(m_textures.size() >= 2)
1037                                                 tname = m_textures[1];
1038                                         else if(m_textures.size() >= 1)
1039                                                 tname = m_textures[0];
1040                                         tname += mod;
1041                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1042                                         buf->getMaterial().setTexture(0,
1043                                                         tsrc->getTextureRaw(tname));
1044                                 }
1045                         }
1046                 }
1047         }
1048
1049         void processMessage(const std::string &data)
1050         {
1051                 //infostream<<"GenericCAO: Got message"<<std::endl;
1052                 std::istringstream is(data, std::ios::binary);
1053                 // command
1054                 u8 cmd = readU8(is);
1055                 if(cmd == GENERIC_CMD_SET_PROPERTIES)
1056                 {
1057                         m_hp_max = readS16(is);
1058                         m_physical = readU8(is);
1059                         m_weight = readF1000(is);
1060                         m_collisionbox.MinEdge = readV3F1000(is);
1061                         m_collisionbox.MaxEdge = readV3F1000(is);
1062                         m_visual = deSerializeString(is);
1063                         m_visual_size = readV2F1000(is);
1064                         m_textures.clear();
1065                         u32 texture_count = readU16(is);
1066                         for(u32 i=0; i<texture_count; i++){
1067                                 m_textures.push_back(deSerializeString(is));
1068                         }
1069                         m_spritediv = readV2S16(is);
1070                         m_is_visible = readU8(is);
1071                         m_makes_footstep_sound = readU8(is);
1072
1073                         m_selection_box = m_collisionbox;
1074                         m_selection_box.MinEdge *= BS;
1075                         m_selection_box.MaxEdge *= BS;
1076
1077                         m_tx_size.X = 1.0 / m_spritediv.X;
1078                         m_tx_size.Y = 1.0 / m_spritediv.Y;
1079
1080                         expireVisuals();
1081                 }
1082                 else if(cmd == GENERIC_CMD_UPDATE_POSITION)
1083                 {
1084                         m_position = readV3F1000(is);
1085                         m_velocity = readV3F1000(is);
1086                         m_acceleration = readV3F1000(is);
1087                         m_yaw = readF1000(is);
1088                         bool do_interpolate = readU8(is);
1089                         bool is_end_position = readU8(is);
1090                         float update_interval = readF1000(is);
1091
1092                         if(do_interpolate){
1093                                 if(!m_physical)
1094                                         pos_translator.update(m_position, is_end_position, update_interval);
1095                         } else {
1096                                 pos_translator.init(m_position);
1097                         }
1098                         updateNodePos();
1099                 }
1100                 else if(cmd == GENERIC_CMD_SET_TEXTURE_MOD)
1101                 {
1102                         std::string mod = deSerializeString(is);
1103                         updateTextures(mod);
1104                 }
1105                 else if(cmd == GENERIC_CMD_SET_SPRITE)
1106                 {
1107                         v2s16 p = readV2S16(is);
1108                         int num_frames = readU16(is);
1109                         float framelength = readF1000(is);
1110                         bool select_horiz_by_yawpitch = readU8(is);
1111
1112                         m_tx_basepos = p;
1113                         m_anim_num_frames = num_frames;
1114                         m_anim_framelength = framelength;
1115                         m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1116
1117                         updateTexturePos();
1118                 }
1119                 else if(cmd == GENERIC_CMD_PUNCHED)
1120                 {
1121                         /*s16 damage =*/ readS16(is);
1122                         s16 result_hp = readS16(is);
1123
1124                         m_hp = result_hp;
1125                 }
1126                 else if(cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS)
1127                 {
1128                         m_armor_groups.clear();
1129                         int armor_groups_size = readU16(is);
1130                         for(int i=0; i<armor_groups_size; i++){
1131                                 std::string name = deSerializeString(is);
1132                                 int rating = readS16(is);
1133                                 m_armor_groups[name] = rating;
1134                         }
1135                 }
1136         }
1137
1138         bool directReportPunch(v3f dir, const ItemStack *punchitem=NULL,
1139                         float time_from_last_punch=1000000)
1140         {
1141                 assert(punchitem);
1142                 const ToolCapabilities *toolcap =
1143                                 &punchitem->getToolCapabilities(m_gamedef->idef());
1144                 PunchDamageResult result = getPunchDamage(
1145                                 m_armor_groups,
1146                                 toolcap,
1147                                 punchitem,
1148                                 time_from_last_punch);
1149
1150                 dstream<<"Directly did_punch="<<result.did_punch<<" result.damage="<<result.damage<<std::endl;
1151
1152                 if(result.did_punch && result.damage != 0)
1153                 {
1154                         if(result.damage < m_hp){
1155                                 m_hp -= result.damage;
1156                         } else {
1157                                 m_hp = 0;
1158                                 // TODO: Execute defined fast response
1159                                 // As there is no definition, make a smoke puff
1160                                 ClientSimpleObject *simple = createSmokePuff(
1161                                                 m_smgr, m_env, m_position,
1162                                                 m_visual_size * BS);
1163                                 m_env->addSimpleObject(simple);
1164                         }
1165                         // TODO: Execute defined fast response
1166                         // Flashing shall suffice as there is no definition
1167                         m_reset_textures_timer = 0.05;
1168                         if(result.damage >= 2)
1169                                 m_reset_textures_timer += 0.05 * result.damage;
1170                         updateTextures("^[brighten");
1171                 }
1172
1173                 return false;
1174         }
1175
1176         std::string debugInfoText()
1177         {
1178                 std::ostringstream os(std::ios::binary);
1179                 os<<"GenericCAO hp="<<m_hp<<"\n";
1180                 os<<"armor={";
1181                 for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1182                                 i != m_armor_groups.end(); i++){
1183                         os<<i->first<<"="<<i->second<<", ";
1184                 }
1185                 os<<"}";
1186                 return os.str();
1187         }
1188 };
1189
1190 // Prototype
1191 GenericCAO proto_GenericCAO(NULL, NULL);
1192
1193