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 #include "localplayer.h"
  40 class Settings;
  41 struct ToolCapabilities;
  42
  43 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
  44
  45 core::map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
  46
  47 /*
  48         SmoothTranslator
  49 */
  50
  51 struct SmoothTranslator
  52 {
  53         v3f vect_old;
  54         v3f vect_show;
  55         v3f vect_aim;
  56         f32 anim_counter;
  57         f32 anim_time;
  58         f32 anim_time_counter;
  59         bool aim_is_end;
  60
  61         SmoothTranslator():
  62                 vect_old(0,0,0),
  63                 vect_show(0,0,0),
  64                 vect_aim(0,0,0),
  65                 anim_counter(0),
  66                 anim_time(0),
  67                 anim_time_counter(0),
  68                 aim_is_end(true)
  69         {}
  70
  71         void init(v3f vect)
  72         {
  73                 vect_old = vect;
  74                 vect_show = vect;
  75                 vect_aim = vect;
  76                 anim_counter = 0;
  77                 anim_time = 0;
  78                 anim_time_counter = 0;
  79                 aim_is_end = true;
  80         }
  81
  82         void sharpen()
  83         {
  84                 init(vect_show);
  85         }
  86
  87         void update(v3f vect_new, bool is_end_position=false, float update_interval=-1)
  88         {
  89                 aim_is_end = is_end_position;
  90                 vect_old = vect_show;
  91                 vect_aim = vect_new;
  92                 if(update_interval > 0){
  93                         anim_time = update_interval;
  94                 } else {
  95                         if(anim_time < 0.001 || anim_time > 1.0)
  96                                 anim_time = anim_time_counter;
  97                         else
  98                                 anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
  99                 }
 100                 anim_time_counter = 0;
 101                 anim_counter = 0;
 102         }
 103
 104         void translate(f32 dtime)
 105         {
 106                 anim_time_counter = anim_time_counter + dtime;
 107                 anim_counter = anim_counter + dtime;
 108                 v3f vect_move = vect_aim - vect_old;
 109                 f32 moveratio = 1.0;
 110                 if(anim_time > 0.001)
 111                         moveratio = anim_time_counter / anim_time;
 112                 // Move a bit less than should, to avoid oscillation
 113                 moveratio = moveratio * 0.8;
 114                 float move_end = 1.5;
 115                 if(aim_is_end)
 116                         move_end = 1.0;
 117                 if(moveratio > move_end)
 118                         moveratio = move_end;
 119                 vect_show = vect_old + vect_move * moveratio;
 120         }
 121
 122         bool is_moving()
 123         {
 124                 return ((anim_time_counter / anim_time) < 1.4);
 125         }
 126 };
 127
 128 /*
 129         Other stuff
 130 */
 131
 132 static void setBillboardTextureMatrix(scene::IBillboardSceneNode *bill,
 133                 float txs, float tys, int col, int row)
 134 {
 135         video::SMaterial& material = bill->getMaterial(0);
 136         core::matrix4& matrix = material.getTextureMatrix(0);
 137         matrix.setTextureTranslate(txs*col, tys*row);
 138         matrix.setTextureScale(txs, tys);
 139 }
 140
 141 /*
 142         TestCAO
 143 */
 144
 145 class TestCAO : public ClientActiveObject
 146 {
 147 public:
 148         TestCAO(IGameDef *gamedef, ClientEnvironment *env);
 149         virtual ~TestCAO();
 150
 151         u8 getType() const
 152         {
 153                 return ACTIVEOBJECT_TYPE_TEST;
 154         }
 155
 156         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 157
 158         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 159                         IrrlichtDevice *irr);
 160         void removeFromScene();
 161         void updateLight(u8 light_at_pos);
 162         v3s16 getLightPosition();
 163         void updateNodePos();
 164
 165         void step(float dtime, ClientEnvironment *env);
 166
 167         void processMessage(const std::string &data);
 168
 169 private:
 170         scene::IMeshSceneNode *m_node;
 171         v3f m_position;
 172 };
 173
 174 // Prototype
 175 TestCAO proto_TestCAO(NULL, NULL);
 176
 177 TestCAO::TestCAO(IGameDef *gamedef, ClientEnvironment *env):
 178         ClientActiveObject(0, gamedef, env),
 179         m_node(NULL),
 180         m_position(v3f(0,10*BS,0))
 181 {
 182         ClientActiveObject::registerType(getType(), create);
 183 }
 184
 185 TestCAO::~TestCAO()
 186 {
 187 }
 188
 189 ClientActiveObject* TestCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 190 {
 191         return new TestCAO(gamedef, env);
 192 }
 193
 194 void TestCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 195                         IrrlichtDevice *irr)
 196 {
 197         if(m_node != NULL)
 198                 return;
 199
 200         //video::IVideoDriver* driver = smgr->getVideoDriver();
 201
 202         scene::SMesh *mesh = new scene::SMesh();
 203         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 204         video::SColor c(255,255,255,255);
 205         video::S3DVertex vertices[4] =
 206         {
 207                 video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 208                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 209                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 210                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
 211         };
 212         u16 indices[] = {0,1,2,2,3,0};
 213         buf->append(vertices, 4, indices, 6);
 214         // Set material
 215         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 216         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 217         buf->getMaterial().setTexture(0, tsrc->getTextureRaw("rat.png"));
 218         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 219         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 220         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 221         // Add to mesh
 222         mesh->addMeshBuffer(buf);
 223         buf->drop();
 224         m_node = smgr->addMeshSceneNode(mesh, NULL);
 225         mesh->drop();
 226         updateNodePos();
 227 }
 228
 229 void TestCAO::removeFromScene()
 230 {
 231         if(m_node == NULL)
 232                 return;
 233
 234         m_node->remove();
 235         m_node = NULL;
 236 }
 237
 238 void TestCAO::updateLight(u8 light_at_pos)
 239 {
 240 }
 241
 242 v3s16 TestCAO::getLightPosition()
 243 {
 244         return floatToInt(m_position, BS);
 245 }
 246
 247 void TestCAO::updateNodePos()
 248 {
 249         if(m_node == NULL)
 250                 return;
 251
 252         m_node->setPosition(m_position);
 253         //m_node->setRotation(v3f(0, 45, 0));
 254 }
 255
 256 void TestCAO::step(float dtime, ClientEnvironment *env)
 257 {
 258         if(m_node)
 259         {
 260                 v3f rot = m_node->getRotation();
 261                 //infostream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
 262                 rot.Y += dtime * 180;
 263                 m_node->setRotation(rot);
 264         }
 265 }
 266
 267 void TestCAO::processMessage(const std::string &data)
 268 {
 269         infostream<<"TestCAO: Got data: "<<data<<std::endl;
 270         std::istringstream is(data, std::ios::binary);
 271         u16 cmd;
 272         is>>cmd;
 273         if(cmd == 0)
 274         {
 275                 v3f newpos;
 276                 is>>newpos.X;
 277                 is>>newpos.Y;
 278                 is>>newpos.Z;
 279                 m_position = newpos;
 280                 updateNodePos();
 281         }
 282 }
 283
 284 /*
 285         ItemCAO
 286 */
 287
 288 class ItemCAO : public ClientActiveObject
 289 {
 290 public:
 291         ItemCAO(IGameDef *gamedef, ClientEnvironment *env);
 292         virtual ~ItemCAO();
 293
 294         u8 getType() const
 295         {
 296                 return ACTIVEOBJECT_TYPE_ITEM;
 297         }
 298
 299         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 300
 301         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 302                         IrrlichtDevice *irr);
 303         void removeFromScene();
 304         void updateLight(u8 light_at_pos);
 305         v3s16 getLightPosition();
 306         void updateNodePos();
 307         void updateInfoText();
 308         void updateTexture();
 309
 310         void step(float dtime, ClientEnvironment *env);
 311
 312         void processMessage(const std::string &data);
 313
 314         void initialize(const std::string &data);
 315
 316         core::aabbox3d<f32>* getSelectionBox()
 317                 {return &m_selection_box;}
 318         v3f getPosition()
 319                 {return m_position;}
 320
 321         std::string infoText()
 322                 {return m_infotext;}
 323
 324 private:
 325         core::aabbox3d<f32> m_selection_box;
 326         scene::IMeshSceneNode *m_node;
 327         v3f m_position;
 328         std::string m_itemstring;
 329         std::string m_infotext;
 330 };
 331
 332 #include "inventory.h"
 333
 334 // Prototype
 335 ItemCAO proto_ItemCAO(NULL, NULL);
 336
 337 ItemCAO::ItemCAO(IGameDef *gamedef, ClientEnvironment *env):
 338         ClientActiveObject(0, gamedef, env),
 339         m_selection_box(-BS/3.,0.0,-BS/3., BS/3.,BS*2./3.,BS/3.),
 340         m_node(NULL),
 341         m_position(v3f(0,10*BS,0))
 342 {
 343         if(!gamedef && !env)
 344         {
 345                 ClientActiveObject::registerType(getType(), create);
 346         }
 347 }
 348
 349 ItemCAO::~ItemCAO()
 350 {
 351 }
 352
 353 ClientActiveObject* ItemCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 354 {
 355         return new ItemCAO(gamedef, env);
 356 }
 357
 358 void ItemCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 359                         IrrlichtDevice *irr)
 360 {
 361         if(m_node != NULL)
 362                 return;
 363
 364         //video::IVideoDriver* driver = smgr->getVideoDriver();
 365
 366         scene::SMesh *mesh = new scene::SMesh();
 367         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 368         video::SColor c(255,255,255,255);
 369         video::S3DVertex vertices[4] =
 370         {
 371                 /*video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 372                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 373                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 374                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),*/
 375                 video::S3DVertex(BS/3.,0,0, 0,0,0, c, 0,1),
 376                 video::S3DVertex(-BS/3.,0,0, 0,0,0, c, 1,1),
 377                 video::S3DVertex(-BS/3.,0+BS*2./3.,0, 0,0,0, c, 1,0),
 378                 video::S3DVertex(BS/3.,0+BS*2./3.,0, 0,0,0, c, 0,0),
 379         };
 380         u16 indices[] = {0,1,2,2,3,0};
 381         buf->append(vertices, 4, indices, 6);
 382         // Set material
 383         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 384         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 385         // Initialize with a generated placeholder texture
 386         buf->getMaterial().setTexture(0, tsrc->getTextureRaw(""));
 387         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 388         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 389         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 390         // Add to mesh
 391         mesh->addMeshBuffer(buf);
 392         buf->drop();
 393         m_node = smgr->addMeshSceneNode(mesh, NULL);
 394         mesh->drop();
 395         updateNodePos();
 396
 397         /*
 398                 Update image of node
 399         */
 400
 401         updateTexture();
 402 }
 403
 404 void ItemCAO::removeFromScene()
 405 {
 406         if(m_node == NULL)
 407                 return;
 408
 409         m_node->remove();
 410         m_node = NULL;
 411 }
 412
 413 void ItemCAO::updateLight(u8 light_at_pos)
 414 {
 415         if(m_node == NULL)
 416                 return;
 417
 418         u8 li = decode_light(light_at_pos);
 419         video::SColor color(255,li,li,li);
 420         setMeshColor(m_node->getMesh(), color);
 421 }
 422
 423 v3s16 ItemCAO::getLightPosition()
 424 {
 425         return floatToInt(m_position + v3f(0,0.5*BS,0), BS);
 426 }
 427
 428 void ItemCAO::updateNodePos()
 429 {
 430         if(m_node == NULL)
 431                 return;
 432
 433         m_node->setPosition(m_position);
 434 }
 435
 436 void ItemCAO::updateInfoText()
 437 {
 438         try{
 439                 IItemDefManager *idef = m_gamedef->idef();
 440                 ItemStack item;
 441                 item.deSerialize(m_itemstring, idef);
 442                 if(item.isKnown(idef))
 443                         m_infotext = item.getDefinition(idef).description;
 444                 else
 445                         m_infotext = "Unknown item: '" + m_itemstring + "'";
 446                 if(item.count >= 2)
 447                         m_infotext += " (" + itos(item.count) + ")";
 448         }
 449         catch(SerializationError &e)
 450         {
 451                 m_infotext = "Unknown item: '" + m_itemstring + "'";
 452         }
 453 }
 454
 455 void ItemCAO::updateTexture()
 456 {
 457         if(m_node == NULL)
 458                 return;
 459
 460         // Create an inventory item to see what is its image
 461         std::istringstream is(m_itemstring, std::ios_base::binary);
 462         video::ITexture *texture = NULL;
 463         try{
 464                 IItemDefManager *idef = m_gamedef->idef();
 465                 ItemStack item;
 466                 item.deSerialize(is, idef);
 467                 texture = item.getDefinition(idef).inventory_texture;
 468         }
 469         catch(SerializationError &e)
 470         {
 471                 infostream<<"WARNING: "<<__FUNCTION_NAME
 472                                 <<": error deSerializing itemstring \""
 473                                 <<m_itemstring<<std::endl;
 474         }
 475
 476         // Set meshbuffer texture
 477         m_node->getMaterial(0).setTexture(0, texture);
 478 }
 479
 480
 481 void ItemCAO::step(float dtime, ClientEnvironment *env)
 482 {
 483         if(m_node)
 484         {
 485                 /*v3f rot = m_node->getRotation();
 486                 rot.Y += dtime * 120;
 487                 m_node->setRotation(rot);*/
 488                 LocalPlayer *player = env->getLocalPlayer();
 489                 assert(player);
 490                 v3f rot = m_node->getRotation();
 491                 rot.Y = 180.0 - (player->getYaw());
 492                 m_node->setRotation(rot);
 493         }
 494 }
 495
 496 void ItemCAO::processMessage(const std::string &data)
 497 {
 498         //infostream<<"ItemCAO: Got message"<<std::endl;
 499         std::istringstream is(data, std::ios::binary);
 500         // command
 501         u8 cmd = readU8(is);
 502         if(cmd == 0)
 503         {
 504                 // pos
 505                 m_position = readV3F1000(is);
 506                 updateNodePos();
 507         }
 508         if(cmd == 1)
 509         {
 510                 // itemstring
 511                 m_itemstring = deSerializeString(is);
 512                 updateInfoText();
 513                 updateTexture();
 514         }
 515 }
 516
 517 void ItemCAO::initialize(const std::string &data)
 518 {
 519         infostream<<"ItemCAO: Got init data"<<std::endl;
 520
 521         {
 522                 std::istringstream is(data, std::ios::binary);
 523                 // version
 524                 u8 version = readU8(is);
 525                 // check version
 526                 if(version != 0)
 527                         return;
 528                 // pos
 529                 m_position = readV3F1000(is);
 530                 // itemstring
 531                 m_itemstring = deSerializeString(is);
 532         }
 533
 534         updateNodePos();
 535         updateInfoText();
 536 }
 537
 538 /*
 539         GenericCAO
 540 */
 541
 542 #include "genericobject.h"
 543
 544 class GenericCAO : public ClientActiveObject
 545 {
 546 private:
 547         // Only set at initialization
 548         std::string m_name;
 549         bool m_is_player;
 550         bool m_is_local_player; // determined locally
 551         // Property-ish things
 552         ObjectProperties m_prop;
 553         //
 554         scene::ISceneManager *m_smgr;
 555         IrrlichtDevice *m_irr;
 556         core::aabbox3d<f32> m_selection_box;
 557         scene::IMeshSceneNode *m_meshnode;
 558         scene::IBillboardSceneNode *m_spritenode;
 559         scene::ITextSceneNode* m_textnode;
 560         v3f m_position;
 561         v3f m_velocity;
 562         v3f m_acceleration;
 563         float m_yaw;
 564         s16 m_hp;
 565         SmoothTranslator pos_translator;
 566         // Spritesheet/animation stuff
 567         v2f m_tx_size;
 568         v2s16 m_tx_basepos;
 569         bool m_initial_tx_basepos_set;
 570         bool m_tx_select_horiz_by_yawpitch;
 571         int m_anim_frame;
 572         int m_anim_num_frames;
 573         float m_anim_framelength;
 574         float m_anim_timer;
 575         ItemGroupList m_armor_groups;
 576         float m_reset_textures_timer;
 577         bool m_visuals_expired;
 578         float m_step_distance_counter;
 579         u8 m_last_light;
 580
 581 public:
 582         GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
 583                 ClientActiveObject(0, gamedef, env),
 584                 //
 585                 m_is_player(false),
 586                 m_is_local_player(false),
 587                 //
 588                 m_smgr(NULL),
 589                 m_irr(NULL),
 590                 m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
 591                 m_meshnode(NULL),
 592                 m_spritenode(NULL),
 593                 m_textnode(NULL),
 594                 m_position(v3f(0,10*BS,0)),
 595                 m_velocity(v3f(0,0,0)),
 596                 m_acceleration(v3f(0,0,0)),
 597                 m_yaw(0),
 598                 m_hp(1),
 599                 m_tx_size(1,1),
 600                 m_tx_basepos(0,0),
 601                 m_initial_tx_basepos_set(false),
 602                 m_tx_select_horiz_by_yawpitch(false),
 603                 m_anim_frame(0),
 604                 m_anim_num_frames(1),
 605                 m_anim_framelength(0.2),
 606                 m_anim_timer(0),
 607                 m_reset_textures_timer(-1),
 608                 m_visuals_expired(false),
 609                 m_step_distance_counter(0),
 610                 m_last_light(255)
 611         {
 612                 if(gamedef == NULL)
 613                         ClientActiveObject::registerType(getType(), create);
 614         }
 615
 616         void initialize(const std::string &data)
 617         {
 618                 infostream<<"GenericCAO: Got init data"<<std::endl;
 619                 std::istringstream is(data, std::ios::binary);
 620                 // version
 621                 u8 version = readU8(is);
 622                 // check version
 623                 if(version != 0){
 624                         errorstream<<"GenericCAO: Unsupported init data version"
 625                                         <<std::endl;
 626                         return;
 627                 }
 628                 m_name = deSerializeString(is);
 629                 m_is_player = readU8(is);
 630                 m_position = readV3F1000(is);
 631                 m_yaw = readF1000(is);
 632                 m_hp = readS16(is);
 633
 634                 int num_messages = readU8(is);
 635                 for(int i=0; i<num_messages; i++){
 636                         std::string message = deSerializeLongString(is);
 637                         processMessage(message);
 638                 }
 639
 640                 pos_translator.init(m_position);
 641                 updateNodePos();
 642
 643                 if(m_is_player){
 644                         Player *player = m_env->getPlayer(m_name.c_str());
 645                         if(player && player->isLocal()){
 646                                 m_is_local_player = true;
 647                         }
 648                 }
 649         }
 650
 651         ~GenericCAO()
 652         {
 653         }
 654
 655         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env)
 656         {
 657                 return new GenericCAO(gamedef, env);
 658         }
 659
 660         u8 getType() const
 661         {
 662                 return ACTIVEOBJECT_TYPE_GENERIC;
 663         }
 664         core::aabbox3d<f32>* getSelectionBox()
 665         {
 666                 if(!m_prop.is_visible || m_is_local_player)
 667                         return NULL;
 668                 return &m_selection_box;
 669         }
 670         v3f getPosition()
 671         {
 672                 return pos_translator.vect_show;
 673         }
 674
 675         void removeFromScene()
 676         {
 677                 if(m_meshnode){
 678                         m_meshnode->remove();
 679                         m_meshnode = NULL;
 680                 }
 681                 if(m_spritenode){
 682                         m_spritenode->remove();
 683                         m_spritenode = NULL;
 684                 }
 685         }
 686
 687         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 688                         IrrlichtDevice *irr)
 689         {
 690                 m_smgr = smgr;
 691                 m_irr = irr;
 692
 693                 if(m_meshnode != NULL || m_spritenode != NULL)
 694                         return;
 695
 696                 m_visuals_expired = false;
 697
 698                 if(!m_prop.is_visible || m_is_local_player)
 699                         return;
 700
 701                 //video::IVideoDriver* driver = smgr->getVideoDriver();
 702
 703                 if(m_prop.visual == "sprite"){
 704                         infostream<<"GenericCAO::addToScene(): single_sprite"<<std::endl;
 705                         m_spritenode = smgr->addBillboardSceneNode(
 706                                         NULL, v2f(1, 1), v3f(0,0,0), -1);
 707                         m_spritenode->setMaterialTexture(0,
 708                                         tsrc->getTextureRaw("unknown_block.png"));
 709                         m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
 710                         m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 711                         m_spritenode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
 712                         m_spritenode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 713                         u8 li = m_last_light;
 714                         m_spritenode->setColor(video::SColor(255,li,li,li));
 715                         m_spritenode->setSize(m_prop.visual_size*BS);
 716                         {
 717                                 const float txs = 1.0 / 1;
 718                                 const float tys = 1.0 / 1;
 719                                 setBillboardTextureMatrix(m_spritenode,
 720                                                 txs, tys, 0, 0);
 721                         }
 722                 }
 723                 else if(m_prop.visual == "upright_sprite")
 724                 {
 725                         scene::SMesh *mesh = new scene::SMesh();
 726                         double dx = BS*m_prop.visual_size.X/2;
 727                         double dy = BS*m_prop.visual_size.Y/2;
 728                         { // Front
 729                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 730                         u8 li = m_last_light;
 731                         video::SColor c(255,li,li,li);
 732                         video::S3DVertex vertices[4] =
 733                         {
 734                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 735                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 736                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 737                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 738                         };
 739                         u16 indices[] = {0,1,2,2,3,0};
 740                         buf->append(vertices, 4, indices, 6);
 741                         // Set material
 742                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 743                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 744                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 745                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 746                         // Add to mesh
 747                         mesh->addMeshBuffer(buf);
 748                         buf->drop();
 749                         }
 750                         { // Back
 751                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 752                         u8 li = m_last_light;
 753                         video::SColor c(255,li,li,li);
 754                         video::S3DVertex vertices[4] =
 755                         {
 756                                 video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
 757                                 video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
 758                                 video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
 759                                 video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
 760                         };
 761                         u16 indices[] = {0,1,2,2,3,0};
 762                         buf->append(vertices, 4, indices, 6);
 763                         // Set material
 764                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 765                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 766                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 767                         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 768                         // Add to mesh
 769                         mesh->addMeshBuffer(buf);
 770                         buf->drop();
 771                         }
 772                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 773                         mesh->drop();
 774                         // Set it to use the materials of the meshbuffers directly.
 775                         // This is needed for changing the texture in the future
 776                         m_meshnode->setReadOnlyMaterials(true);
 777                 }
 778                 else if(m_prop.visual == "cube"){
 779                         infostream<<"GenericCAO::addToScene(): cube"<<std::endl;
 780                         scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 781                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 782                         mesh->drop();
 783
 784                         m_meshnode->setScale(v3f(1));
 785                         u8 li = m_last_light;
 786                         setMeshColor(m_meshnode->getMesh(), video::SColor(255,li,li,li));
 787                 } else {
 788                         infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 789                                         <<"\" not supported"<<std::endl;
 790                 }
 791                 updateTextures("");
 792
 793                 scene::ISceneNode *node = NULL;
 794                 if(m_spritenode)
 795                         node = m_spritenode;
 796                 else if(m_meshnode)
 797                         node = m_meshnode;
 798                 if(node && m_is_player && !m_is_local_player){
 799                         // Add a text node for showing the name
 800                         gui::IGUIEnvironment* gui = irr->getGUIEnvironment();
 801                         std::wstring wname = narrow_to_wide(m_name);
 802                         m_textnode = smgr->addTextSceneNode(gui->getBuiltInFont(),
 803                                         wname.c_str(), video::SColor(255,255,255,255), node);
 804                         m_textnode->setPosition(v3f(0, BS*1.1, 0));
 805                 }
 806
 807                 updateNodePos();
 808         }
 809
 810         void expireVisuals()
 811         {
 812                 m_visuals_expired = true;
 813         }
 814
 815         void updateLight(u8 light_at_pos)
 816         {
 817                 bool is_visible = (m_hp != 0);
 818                 u8 li = decode_light(light_at_pos);
 819                 m_last_light = li;
 820                 video::SColor color(255,li,li,li);
 821                 if(m_meshnode){
 822                         setMeshColor(m_meshnode->getMesh(), color);
 823                         m_meshnode->setVisible(is_visible);
 824                 }
 825                 if(m_spritenode){
 826                         m_spritenode->setColor(color);
 827                         m_spritenode->setVisible(is_visible);
 828                 }
 829         }
 830
 831         v3s16 getLightPosition()
 832         {
 833                 return floatToInt(m_position, BS);
 834         }
 835
 836         void updateNodePos()
 837         {
 838                 if(m_meshnode){
 839                         m_meshnode->setPosition(pos_translator.vect_show);
 840                         v3f rot = m_meshnode->getRotation();
 841                         rot.Y = -m_yaw;
 842                         m_meshnode->setRotation(rot);
 843                 }
 844                 if(m_spritenode){
 845                         m_spritenode->setPosition(pos_translator.vect_show);
 846                 }
 847         }
 848
 849         void step(float dtime, ClientEnvironment *env)
 850         {
 851                 v3f lastpos = pos_translator.vect_show;
 852
 853                 if(m_visuals_expired && m_smgr && m_irr){
 854                         m_visuals_expired = false;
 855                         removeFromScene();
 856                         addToScene(m_smgr, m_gamedef->tsrc(), m_irr);
 857                 }
 858
 859                 if(m_prop.physical){
 860                         core::aabbox3d<f32> box = m_prop.collisionbox;
 861                         box.MinEdge *= BS;
 862                         box.MaxEdge *= BS;
 863                         collisionMoveResult moveresult;
 864                         f32 pos_max_d = BS*0.25; // Distance per iteration
 865                         v3f p_pos = m_position;
 866                         v3f p_velocity = m_velocity;
 867                         IGameDef *gamedef = env->getGameDef();
 868                         moveresult = collisionMovePrecise(&env->getMap(), gamedef,
 869                                         pos_max_d, box, dtime, p_pos, p_velocity);
 870                         // Apply results
 871                         m_position = p_pos;
 872                         m_velocity = p_velocity;
 873
 874                         bool is_end_position = moveresult.collides;
 875                         pos_translator.update(m_position, is_end_position, dtime);
 876                         pos_translator.translate(dtime);
 877                         updateNodePos();
 878
 879                         m_velocity += dtime * m_acceleration;
 880                 } else {
 881                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
 882                         m_velocity += dtime * m_acceleration;
 883                         pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
 884                         pos_translator.translate(dtime);
 885                         updateNodePos();
 886                 }
 887
 888                 float moved = lastpos.getDistanceFrom(pos_translator.vect_show);
 889                 m_step_distance_counter += moved;
 890                 if(m_step_distance_counter > 1.5*BS){
 891                         m_step_distance_counter = 0;
 892                         if(!m_is_local_player && m_prop.makes_footstep_sound){
 893                                 INodeDefManager *ndef = m_gamedef->ndef();
 894                                 v3s16 p = floatToInt(getPosition() + v3f(0,
 895                                                 (m_prop.collisionbox.MinEdge.Y-0.5)*BS, 0), BS);
 896                                 MapNode n = m_env->getMap().getNodeNoEx(p);
 897                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
 898                                 m_gamedef->sound()->playSoundAt(spec, false, getPosition());
 899                         }
 900                 }
 901
 902                 m_anim_timer += dtime;
 903                 if(m_anim_timer >= m_anim_framelength){
 904                         m_anim_timer -= m_anim_framelength;
 905                         m_anim_frame++;
 906                         if(m_anim_frame >= m_anim_num_frames)
 907                                 m_anim_frame = 0;
 908                 }
 909
 910                 updateTexturePos();
 911
 912                 if(m_reset_textures_timer >= 0){
 913                         m_reset_textures_timer -= dtime;
 914                         if(m_reset_textures_timer <= 0){
 915                                 m_reset_textures_timer = -1;
 916                                 updateTextures("");
 917                         }
 918                 }
 919         }
 920
 921         void updateTexturePos()
 922         {
 923                 if(m_spritenode){
 924                         scene::ICameraSceneNode* camera =
 925                                         m_spritenode->getSceneManager()->getActiveCamera();
 926                         if(!camera)
 927                                 return;
 928                         v3f cam_to_entity = m_spritenode->getAbsolutePosition()
 929                                         - camera->getAbsolutePosition();
 930                         cam_to_entity.normalize();
 931
 932                         int row = m_tx_basepos.Y;
 933                         int col = m_tx_basepos.X;
 934
 935                         if(m_tx_select_horiz_by_yawpitch)
 936                         {
 937                                 if(cam_to_entity.Y > 0.75)
 938                                         col += 5;
 939                                 else if(cam_to_entity.Y < -0.75)
 940                                         col += 4;
 941                                 else{
 942                                         float mob_dir = atan2(cam_to_entity.Z, cam_to_entity.X) / PI * 180.;
 943                                         float dir = mob_dir - m_yaw;
 944                                         dir = wrapDegrees_180(dir);
 945                                         //infostream<<"id="<<m_id<<" dir="<<dir<<std::endl;
 946                                         if(fabs(wrapDegrees_180(dir - 0)) <= 45.1)
 947                                                 col += 2;
 948                                         else if(fabs(wrapDegrees_180(dir - 90)) <= 45.1)
 949                                                 col += 3;
 950                                         else if(fabs(wrapDegrees_180(dir - 180)) <= 45.1)
 951                                                 col += 0;
 952                                         else if(fabs(wrapDegrees_180(dir + 90)) <= 45.1)
 953                                                 col += 1;
 954                                         else
 955                                                 col += 4;
 956                                 }
 957                         }
 958
 959                         // Animation goes downwards
 960                         row += m_anim_frame;
 961
 962                         float txs = m_tx_size.X;
 963                         float tys = m_tx_size.Y;
 964                         setBillboardTextureMatrix(m_spritenode,
 965                                         txs, tys, col, row);
 966                 }
 967         }
 968
 969         void updateTextures(const std::string &mod)
 970         {
 971                 ITextureSource *tsrc = m_gamedef->tsrc();
 972
 973                 if(m_spritenode)
 974                 {
 975                         if(m_prop.visual == "sprite")
 976                         {
 977                                 std::string texturestring = "unknown_block.png";
 978                                 if(m_prop.textures.size() >= 1)
 979                                         texturestring = m_prop.textures[0];
 980                                 texturestring += mod;
 981                                 m_spritenode->setMaterialTexture(0,
 982                                                 tsrc->getTextureRaw(texturestring));
 983                         }
 984                 }
 985                 if(m_meshnode)
 986                 {
 987                         if(m_prop.visual == "cube")
 988                         {
 989                                 for (u32 i = 0; i < 6; ++i)
 990                                 {
 991                                         std::string texturestring = "unknown_block.png";
 992                                         if(m_prop.textures.size() > i)
 993                                                 texturestring = m_prop.textures[i];
 994                                         texturestring += mod;
 995                                         AtlasPointer ap = tsrc->getTexture(texturestring);
 996
 997                                         // Get the tile texture and atlas transformation
 998                                         video::ITexture* atlas = ap.atlas;
 999                                         v2f pos = ap.pos;
1000                                         v2f size = ap.size;
1001
1002                                         // Set material flags and texture
1003                                         video::SMaterial& material = m_meshnode->getMaterial(i);
1004                                         material.setFlag(video::EMF_LIGHTING, false);
1005                                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
1006                                         material.setTexture(0, atlas);
1007                                         material.getTextureMatrix(0).setTextureTranslate(pos.X, pos.Y);
1008                                         material.getTextureMatrix(0).setTextureScale(size.X, size.Y);
1009                                 }
1010                         }
1011                         else if(m_prop.visual == "upright_sprite")
1012                         {
1013                                 scene::IMesh *mesh = m_meshnode->getMesh();
1014                                 {
1015                                         std::string tname = "unknown_object.png";
1016                                         if(m_prop.textures.size() >= 1)
1017                                                 tname = m_prop.textures[0];
1018                                         tname += mod;
1019                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1020                                         buf->getMaterial().setTexture(0,
1021                                                         tsrc->getTextureRaw(tname));
1022                                 }
1023                                 {
1024                                         std::string tname = "unknown_object.png";
1025                                         if(m_prop.textures.size() >= 2)
1026                                                 tname = m_prop.textures[1];
1027                                         else if(m_prop.textures.size() >= 1)
1028                                                 tname = m_prop.textures[0];
1029                                         tname += mod;
1030                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1031                                         buf->getMaterial().setTexture(0,
1032                                                         tsrc->getTextureRaw(tname));
1033                                 }
1034                         }
1035                 }
1036         }
1037
1038         void processMessage(const std::string &data)
1039         {
1040                 //infostream<<"GenericCAO: Got message"<<std::endl;
1041                 std::istringstream is(data, std::ios::binary);
1042                 // command
1043                 u8 cmd = readU8(is);
1044                 if(cmd == GENERIC_CMD_SET_PROPERTIES)
1045                 {
1046                         m_prop = gob_read_set_properties(is);
1047
1048                         m_selection_box = m_prop.collisionbox;
1049                         m_selection_box.MinEdge *= BS;
1050                         m_selection_box.MaxEdge *= BS;
1051
1052                         m_tx_size.X = 1.0 / m_prop.spritediv.X;
1053                         m_tx_size.Y = 1.0 / m_prop.spritediv.Y;
1054
1055                         if(!m_initial_tx_basepos_set){
1056                                 m_initial_tx_basepos_set = true;
1057                                 m_tx_basepos = m_prop.initial_sprite_basepos;
1058                         }
1059
1060                         expireVisuals();
1061                 }
1062                 else if(cmd == GENERIC_CMD_UPDATE_POSITION)
1063                 {
1064                         m_position = readV3F1000(is);
1065                         m_velocity = readV3F1000(is);
1066                         m_acceleration = readV3F1000(is);
1067                         m_yaw = readF1000(is);
1068                         bool do_interpolate = readU8(is);
1069                         bool is_end_position = readU8(is);
1070                         float update_interval = readF1000(is);
1071
1072                         if(do_interpolate){
1073                                 if(!m_prop.physical)
1074                                         pos_translator.update(m_position, is_end_position, update_interval);
1075                         } else {
1076                                 pos_translator.init(m_position);
1077                         }
1078                         updateNodePos();
1079                 }
1080                 else if(cmd == GENERIC_CMD_SET_TEXTURE_MOD)
1081                 {
1082                         std::string mod = deSerializeString(is);
1083                         updateTextures(mod);
1084                 }
1085                 else if(cmd == GENERIC_CMD_SET_SPRITE)
1086                 {
1087                         v2s16 p = readV2S16(is);
1088                         int num_frames = readU16(is);
1089                         float framelength = readF1000(is);
1090                         bool select_horiz_by_yawpitch = readU8(is);
1091
1092                         m_tx_basepos = p;
1093                         m_anim_num_frames = num_frames;
1094                         m_anim_framelength = framelength;
1095                         m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1096
1097                         updateTexturePos();
1098                 }
1099                 else if(cmd == GENERIC_CMD_PUNCHED)
1100                 {
1101                         /*s16 damage =*/ readS16(is);
1102                         s16 result_hp = readS16(is);
1103
1104                         m_hp = result_hp;
1105                 }
1106                 else if(cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS)
1107                 {
1108                         m_armor_groups.clear();
1109                         int armor_groups_size = readU16(is);
1110                         for(int i=0; i<armor_groups_size; i++){
1111                                 std::string name = deSerializeString(is);
1112                                 int rating = readS16(is);
1113                                 m_armor_groups[name] = rating;
1114                         }
1115                 }
1116         }
1117
1118         bool directReportPunch(v3f dir, const ItemStack *punchitem=NULL,
1119                         float time_from_last_punch=1000000)
1120         {
1121                 assert(punchitem);
1122                 const ToolCapabilities *toolcap =
1123                                 &punchitem->getToolCapabilities(m_gamedef->idef());
1124                 PunchDamageResult result = getPunchDamage(
1125                                 m_armor_groups,
1126                                 toolcap,
1127                                 punchitem,
1128                                 time_from_last_punch);
1129
1130                 if(result.did_punch && result.damage != 0)
1131                 {
1132                         if(result.damage < m_hp){
1133                                 m_hp -= result.damage;
1134                         } else {
1135                                 m_hp = 0;
1136                                 // TODO: Execute defined fast response
1137                                 // As there is no definition, make a smoke puff
1138                                 ClientSimpleObject *simple = createSmokePuff(
1139                                                 m_smgr, m_env, m_position,
1140                                                 m_prop.visual_size * BS);
1141                                 m_env->addSimpleObject(simple);
1142                         }
1143                         // TODO: Execute defined fast response
1144                         // Flashing shall suffice as there is no definition
1145                         m_reset_textures_timer = 0.05;
1146                         if(result.damage >= 2)
1147                                 m_reset_textures_timer += 0.05 * result.damage;
1148                         updateTextures("^[brighten");
1149                 }
1150
1151                 return false;
1152         }
1153
1154         std::string debugInfoText()
1155         {
1156                 std::ostringstream os(std::ios::binary);
1157                 os<<"GenericCAO hp="<<m_hp<<"\n";
1158                 os<<"armor={";
1159                 for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1160                                 i != m_armor_groups.end(); i++){
1161                         os<<i->first<<"="<<i->second<<", ";
1162                 }
1163                 os<<"}";
1164                 return os.str();
1165         }
1166 };
1167
1168 // Prototype
1169 GenericCAO proto_GenericCAO(NULL, NULL);
1170
1171