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 core::map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
  43
  44 /*
  45         SmoothTranslator
  46 */
  47
  48 struct SmoothTranslator
  49 {
  50         v3f vect_old;
  51         v3f vect_show;
  52         v3f vect_aim;
  53         f32 anim_counter;
  54         f32 anim_time;
  55         f32 anim_time_counter;
  56         bool aim_is_end;
  57
  58         SmoothTranslator():
  59                 vect_old(0,0,0),
  60                 vect_show(0,0,0),
  61                 vect_aim(0,0,0),
  62                 anim_counter(0),
  63                 anim_time(0),
  64                 anim_time_counter(0),
  65                 aim_is_end(true)
  66         {}
  67
  68         void init(v3f vect)
  69         {
  70                 vect_old = vect;
  71                 vect_show = vect;
  72                 vect_aim = vect;
  73                 anim_counter = 0;
  74                 anim_time = 0;
  75                 anim_time_counter = 0;
  76                 aim_is_end = true;
  77         }
  78
  79         void sharpen()
  80         {
  81                 init(vect_show);
  82         }
  83
  84         void update(v3f vect_new, bool is_end_position=false, float update_interval=-1)
  85         {
  86                 aim_is_end = is_end_position;
  87                 vect_old = vect_show;
  88                 vect_aim = vect_new;
  89                 if(update_interval > 0){
  90                         anim_time = update_interval;
  91                 } else {
  92                         if(anim_time < 0.001 || anim_time > 1.0)
  93                                 anim_time = anim_time_counter;
  94                         else
  95                                 anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
  96                 }
  97                 anim_time_counter = 0;
  98                 anim_counter = 0;
  99         }
 100
 101         void translate(f32 dtime)
 102         {
 103                 anim_time_counter = anim_time_counter + dtime;
 104                 anim_counter = anim_counter + dtime;
 105                 v3f vect_move = vect_aim - vect_old;
 106                 f32 moveratio = 1.0;
 107                 if(anim_time > 0.001)
 108                         moveratio = anim_time_counter / anim_time;
 109                 // Move a bit less than should, to avoid oscillation
 110                 moveratio = moveratio * 0.8;
 111                 float move_end = 1.5;
 112                 if(aim_is_end)
 113                         move_end = 1.0;
 114                 if(moveratio > move_end)
 115                         moveratio = move_end;
 116                 vect_show = vect_old + vect_move * moveratio;
 117         }
 118
 119         bool is_moving()
 120         {
 121                 return ((anim_time_counter / anim_time) < 1.4);
 122         }
 123 };
 124
 125 /*
 126         Other stuff
 127 */
 128
 129 static void setBillboardTextureMatrix(scene::IBillboardSceneNode *bill,
 130                 float txs, float tys, int col, int row)
 131 {
 132         video::SMaterial& material = bill->getMaterial(0);
 133         core::matrix4& matrix = material.getTextureMatrix(0);
 134         matrix.setTextureTranslate(txs*col, tys*row);
 135         matrix.setTextureScale(txs, tys);
 136 }
 137
 138 /*
 139         TestCAO
 140 */
 141
 142 class TestCAO : public ClientActiveObject
 143 {
 144 public:
 145         TestCAO(IGameDef *gamedef, ClientEnvironment *env);
 146         virtual ~TestCAO();
 147
 148         u8 getType() const
 149         {
 150                 return ACTIVEOBJECT_TYPE_TEST;
 151         }
 152
 153         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 154
 155         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 156                         IrrlichtDevice *irr);
 157         void removeFromScene();
 158         void updateLight(u8 light_at_pos);
 159         v3s16 getLightPosition();
 160         void updateNodePos();
 161
 162         void step(float dtime, ClientEnvironment *env);
 163
 164         void processMessage(const std::string &data);
 165
 166 private:
 167         scene::IMeshSceneNode *m_node;
 168         v3f m_position;
 169 };
 170
 171 // Prototype
 172 TestCAO proto_TestCAO(NULL, NULL);
 173
 174 TestCAO::TestCAO(IGameDef *gamedef, ClientEnvironment *env):
 175         ClientActiveObject(0, gamedef, env),
 176         m_node(NULL),
 177         m_position(v3f(0,10*BS,0))
 178 {
 179         ClientActiveObject::registerType(getType(), create);
 180 }
 181
 182 TestCAO::~TestCAO()
 183 {
 184 }
 185
 186 ClientActiveObject* TestCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 187 {
 188         return new TestCAO(gamedef, env);
 189 }
 190
 191 void TestCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 192                         IrrlichtDevice *irr)
 193 {
 194         if(m_node != NULL)
 195                 return;
 196
 197         //video::IVideoDriver* driver = smgr->getVideoDriver();
 198
 199         scene::SMesh *mesh = new scene::SMesh();
 200         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 201         video::SColor c(255,255,255,255);
 202         video::S3DVertex vertices[4] =
 203         {
 204                 video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 205                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 206                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 207                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
 208         };
 209         u16 indices[] = {0,1,2,2,3,0};
 210         buf->append(vertices, 4, indices, 6);
 211         // Set material
 212         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 213         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 214         buf->getMaterial().setTexture(0, tsrc->getTextureRaw("rat.png"));
 215         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 216         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 217         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 218         // Add to mesh
 219         mesh->addMeshBuffer(buf);
 220         buf->drop();
 221         m_node = smgr->addMeshSceneNode(mesh, NULL);
 222         mesh->drop();
 223         updateNodePos();
 224 }
 225
 226 void TestCAO::removeFromScene()
 227 {
 228         if(m_node == NULL)
 229                 return;
 230
 231         m_node->remove();
 232         m_node = NULL;
 233 }
 234
 235 void TestCAO::updateLight(u8 light_at_pos)
 236 {
 237 }
 238
 239 v3s16 TestCAO::getLightPosition()
 240 {
 241         return floatToInt(m_position, BS);
 242 }
 243
 244 void TestCAO::updateNodePos()
 245 {
 246         if(m_node == NULL)
 247                 return;
 248
 249         m_node->setPosition(m_position);
 250         //m_node->setRotation(v3f(0, 45, 0));
 251 }
 252
 253 void TestCAO::step(float dtime, ClientEnvironment *env)
 254 {
 255         if(m_node)
 256         {
 257                 v3f rot = m_node->getRotation();
 258                 //infostream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
 259                 rot.Y += dtime * 180;
 260                 m_node->setRotation(rot);
 261         }
 262 }
 263
 264 void TestCAO::processMessage(const std::string &data)
 265 {
 266         infostream<<"TestCAO: Got data: "<<data<<std::endl;
 267         std::istringstream is(data, std::ios::binary);
 268         u16 cmd;
 269         is>>cmd;
 270         if(cmd == 0)
 271         {
 272                 v3f newpos;
 273                 is>>newpos.X;
 274                 is>>newpos.Y;
 275                 is>>newpos.Z;
 276                 m_position = newpos;
 277                 updateNodePos();
 278         }
 279 }
 280
 281 /*
 282         ItemCAO
 283 */
 284
 285 class ItemCAO : public ClientActiveObject
 286 {
 287 public:
 288         ItemCAO(IGameDef *gamedef, ClientEnvironment *env);
 289         virtual ~ItemCAO();
 290
 291         u8 getType() const
 292         {
 293                 return ACTIVEOBJECT_TYPE_ITEM;
 294         }
 295
 296         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env);
 297
 298         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 299                         IrrlichtDevice *irr);
 300         void removeFromScene();
 301         void updateLight(u8 light_at_pos);
 302         v3s16 getLightPosition();
 303         void updateNodePos();
 304         void updateInfoText();
 305         void updateTexture();
 306
 307         void step(float dtime, ClientEnvironment *env);
 308
 309         void processMessage(const std::string &data);
 310
 311         void initialize(const std::string &data);
 312
 313         core::aabbox3d<f32>* getSelectionBox()
 314                 {return &m_selection_box;}
 315         v3f getPosition()
 316                 {return m_position;}
 317
 318         std::string infoText()
 319                 {return m_infotext;}
 320
 321 private:
 322         core::aabbox3d<f32> m_selection_box;
 323         scene::IMeshSceneNode *m_node;
 324         v3f m_position;
 325         std::string m_itemstring;
 326         std::string m_infotext;
 327 };
 328
 329 #include "inventory.h"
 330
 331 // Prototype
 332 ItemCAO proto_ItemCAO(NULL, NULL);
 333
 334 ItemCAO::ItemCAO(IGameDef *gamedef, ClientEnvironment *env):
 335         ClientActiveObject(0, gamedef, env),
 336         m_selection_box(-BS/3.,0.0,-BS/3., BS/3.,BS*2./3.,BS/3.),
 337         m_node(NULL),
 338         m_position(v3f(0,10*BS,0))
 339 {
 340         if(!gamedef && !env)
 341         {
 342                 ClientActiveObject::registerType(getType(), create);
 343         }
 344 }
 345
 346 ItemCAO::~ItemCAO()
 347 {
 348 }
 349
 350 ClientActiveObject* ItemCAO::create(IGameDef *gamedef, ClientEnvironment *env)
 351 {
 352         return new ItemCAO(gamedef, env);
 353 }
 354
 355 void ItemCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 356                         IrrlichtDevice *irr)
 357 {
 358         if(m_node != NULL)
 359                 return;
 360
 361         //video::IVideoDriver* driver = smgr->getVideoDriver();
 362
 363         scene::SMesh *mesh = new scene::SMesh();
 364         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 365         video::SColor c(255,255,255,255);
 366         video::S3DVertex vertices[4] =
 367         {
 368                 /*video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 369                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 370                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 371                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),*/
 372                 video::S3DVertex(BS/3.,0,0, 0,0,0, c, 0,1),
 373                 video::S3DVertex(-BS/3.,0,0, 0,0,0, c, 1,1),
 374                 video::S3DVertex(-BS/3.,0+BS*2./3.,0, 0,0,0, c, 1,0),
 375                 video::S3DVertex(BS/3.,0+BS*2./3.,0, 0,0,0, c, 0,0),
 376         };
 377         u16 indices[] = {0,1,2,2,3,0};
 378         buf->append(vertices, 4, indices, 6);
 379         // Set material
 380         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 381         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 382         // Initialize with a generated placeholder texture
 383         buf->getMaterial().setTexture(0, tsrc->getTextureRaw(""));
 384         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 385         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 386         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 387         // Add to mesh
 388         mesh->addMeshBuffer(buf);
 389         buf->drop();
 390         m_node = smgr->addMeshSceneNode(mesh, NULL);
 391         mesh->drop();
 392         updateNodePos();
 393
 394         /*
 395                 Update image of node
 396         */
 397
 398         updateTexture();
 399 }
 400
 401 void ItemCAO::removeFromScene()
 402 {
 403         if(m_node == NULL)
 404                 return;
 405
 406         m_node->remove();
 407         m_node = NULL;
 408 }
 409
 410 void ItemCAO::updateLight(u8 light_at_pos)
 411 {
 412         if(m_node == NULL)
 413                 return;
 414
 415         u8 li = decode_light(light_at_pos);
 416         video::SColor color(255,li,li,li);
 417         setMeshColor(m_node->getMesh(), color);
 418 }
 419
 420 v3s16 ItemCAO::getLightPosition()
 421 {
 422         return floatToInt(m_position + v3f(0,0.5*BS,0), BS);
 423 }
 424
 425 void ItemCAO::updateNodePos()
 426 {
 427         if(m_node == NULL)
 428                 return;
 429
 430         m_node->setPosition(m_position);
 431 }
 432
 433 void ItemCAO::updateInfoText()
 434 {
 435         try{
 436                 IItemDefManager *idef = m_gamedef->idef();
 437                 ItemStack item;
 438                 item.deSerialize(m_itemstring, idef);
 439                 if(item.isKnown(idef))
 440                         m_infotext = item.getDefinition(idef).description;
 441                 else
 442                         m_infotext = "Unknown item: '" + m_itemstring + "'";
 443                 if(item.count >= 2)
 444                         m_infotext += " (" + itos(item.count) + ")";
 445         }
 446         catch(SerializationError &e)
 447         {
 448                 m_infotext = "Unknown item: '" + m_itemstring + "'";
 449         }
 450 }
 451
 452 void ItemCAO::updateTexture()
 453 {
 454         if(m_node == NULL)
 455                 return;
 456
 457         // Create an inventory item to see what is its image
 458         std::istringstream is(m_itemstring, std::ios_base::binary);
 459         video::ITexture *texture = NULL;
 460         try{
 461                 IItemDefManager *idef = m_gamedef->idef();
 462                 ItemStack item;
 463                 item.deSerialize(is, idef);
 464                 texture = item.getDefinition(idef).inventory_texture;
 465         }
 466         catch(SerializationError &e)
 467         {
 468                 infostream<<"WARNING: "<<__FUNCTION_NAME
 469                                 <<": error deSerializing itemstring \""
 470                                 <<m_itemstring<<std::endl;
 471         }
 472
 473         // Set meshbuffer texture
 474         m_node->getMaterial(0).setTexture(0, texture);
 475 }
 476
 477
 478 void ItemCAO::step(float dtime, ClientEnvironment *env)
 479 {
 480         if(m_node)
 481         {
 482                 /*v3f rot = m_node->getRotation();
 483                 rot.Y += dtime * 120;
 484                 m_node->setRotation(rot);*/
 485                 LocalPlayer *player = env->getLocalPlayer();
 486                 assert(player);
 487                 v3f rot = m_node->getRotation();
 488                 rot.Y = 180.0 - (player->getYaw());
 489                 m_node->setRotation(rot);
 490         }
 491 }
 492
 493 void ItemCAO::processMessage(const std::string &data)
 494 {
 495         //infostream<<"ItemCAO: Got message"<<std::endl;
 496         std::istringstream is(data, std::ios::binary);
 497         // command
 498         u8 cmd = readU8(is);
 499         if(cmd == 0)
 500         {
 501                 // pos
 502                 m_position = readV3F1000(is);
 503                 updateNodePos();
 504         }
 505         if(cmd == 1)
 506         {
 507                 // itemstring
 508                 m_itemstring = deSerializeString(is);
 509                 updateInfoText();
 510                 updateTexture();
 511         }
 512 }
 513
 514 void ItemCAO::initialize(const std::string &data)
 515 {
 516         infostream<<"ItemCAO: Got init data"<<std::endl;
 517
 518         {
 519                 std::istringstream is(data, std::ios::binary);
 520                 // version
 521                 u8 version = readU8(is);
 522                 // check version
 523                 if(version != 0)
 524                         return;
 525                 // pos
 526                 m_position = readV3F1000(is);
 527                 // itemstring
 528                 m_itemstring = deSerializeString(is);
 529         }
 530
 531         updateNodePos();
 532         updateInfoText();
 533 }
 534
 535 /*
 536         LuaEntityCAO
 537 */
 538
 539 #include "luaentity_common.h"
 540
 541 class LuaEntityCAO : public ClientActiveObject
 542 {
 543 private:
 544         scene::ISceneManager *m_smgr;
 545         core::aabbox3d<f32> m_selection_box;
 546         scene::IMeshSceneNode *m_meshnode;
 547         scene::IBillboardSceneNode *m_spritenode;
 548         v3f m_position;
 549         v3f m_velocity;
 550         v3f m_acceleration;
 551         float m_yaw;
 552         s16 m_hp;
 553         struct LuaEntityProperties *m_prop;
 554         SmoothTranslator pos_translator;
 555         // Spritesheet/animation stuff
 556         v2f m_tx_size;
 557         v2s16 m_tx_basepos;
 558         bool m_tx_select_horiz_by_yawpitch;
 559         int m_anim_frame;
 560         int m_anim_num_frames;
 561         float m_anim_framelength;
 562         float m_anim_timer;
 563         ItemGroupList m_armor_groups;
 564         float m_reset_textures_timer;
 565
 566 public:
 567         LuaEntityCAO(IGameDef *gamedef, ClientEnvironment *env):
 568                 ClientActiveObject(0, gamedef, env),
 569                 m_smgr(NULL),
 570                 m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
 571                 m_meshnode(NULL),
 572                 m_spritenode(NULL),
 573                 m_position(v3f(0,10*BS,0)),
 574                 m_velocity(v3f(0,0,0)),
 575                 m_acceleration(v3f(0,0,0)),
 576                 m_yaw(0),
 577                 m_hp(1),
 578                 m_prop(new LuaEntityProperties),
 579                 m_tx_size(1,1),
 580                 m_tx_basepos(0,0),
 581                 m_tx_select_horiz_by_yawpitch(false),
 582                 m_anim_frame(0),
 583                 m_anim_num_frames(1),
 584                 m_anim_framelength(0.2),
 585                 m_anim_timer(0),
 586                 m_reset_textures_timer(-1)
 587         {
 588                 if(gamedef == NULL)
 589                         ClientActiveObject::registerType(getType(), create);
 590         }
 591
 592         void initialize(const std::string &data)
 593         {
 594                 infostream<<"LuaEntityCAO: Got init data"<<std::endl;
 595
 596                 std::istringstream is(data, std::ios::binary);
 597                 // version
 598                 u8 version = readU8(is);
 599                 // check version
 600                 if(version != 1)
 601                         return;
 602                 // pos
 603                 m_position = readV3F1000(is);
 604                 // yaw
 605                 m_yaw = readF1000(is);
 606                 // hp
 607                 m_hp = readS16(is);
 608                 // properties
 609                 std::istringstream prop_is(deSerializeLongString(is), std::ios::binary);
 610                 m_prop->deSerialize(prop_is);
 611
 612                 infostream<<"m_prop: "<<m_prop->dump()<<std::endl;
 613
 614                 m_selection_box = m_prop->collisionbox;
 615                 m_selection_box.MinEdge *= BS;
 616                 m_selection_box.MaxEdge *= BS;
 617
 618                 pos_translator.init(m_position);
 619
 620                 m_tx_size.X = 1.0 / m_prop->spritediv.X;
 621                 m_tx_size.Y = 1.0 / m_prop->spritediv.Y;
 622                 m_tx_basepos.X = m_tx_size.X * m_prop->initial_sprite_basepos.X;
 623                 m_tx_basepos.Y = m_tx_size.Y * m_prop->initial_sprite_basepos.Y;
 624
 625                 updateNodePos();
 626         }
 627
 628         ~LuaEntityCAO()
 629         {
 630                 delete m_prop;
 631         }
 632
 633         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env)
 634         {
 635                 return new LuaEntityCAO(gamedef, env);
 636         }
 637
 638         u8 getType() const
 639         {
 640                 return ACTIVEOBJECT_TYPE_LUAENTITY;
 641         }
 642         core::aabbox3d<f32>* getSelectionBox()
 643         {
 644                 return &m_selection_box;
 645         }
 646         v3f getPosition()
 647         {
 648                 return pos_translator.vect_show;
 649         }
 650
 651         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 652                         IrrlichtDevice *irr)
 653         {
 654                 m_smgr = smgr;
 655
 656                 if(m_meshnode != NULL || m_spritenode != NULL)
 657                         return;
 658
 659                 //video::IVideoDriver* driver = smgr->getVideoDriver();
 660
 661                 if(m_prop->visual == "sprite"){
 662                         infostream<<"LuaEntityCAO::addToScene(): single_sprite"<<std::endl;
 663                         m_spritenode = smgr->addBillboardSceneNode(
 664                                         NULL, v2f(1, 1), v3f(0,0,0), -1);
 665                         m_spritenode->setMaterialTexture(0,
 666                                         tsrc->getTextureRaw("unknown_block.png"));
 667                         m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
 668                         m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 669                         m_spritenode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
 670                         m_spritenode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 671                         m_spritenode->setColor(video::SColor(255,0,0,0));
 672                         m_spritenode->setVisible(false); /* Set visible when brightness is known */
 673                         m_spritenode->setSize(m_prop->visual_size*BS);
 674                         {
 675                                 const float txs = 1.0 / 1;
 676                                 const float tys = 1.0 / 1;
 677                                 setBillboardTextureMatrix(m_spritenode,
 678                                                 txs, tys, 0, 0);
 679                         }
 680                 } else if(m_prop->visual == "cube"){
 681                         infostream<<"LuaEntityCAO::addToScene(): cube"<<std::endl;
 682                         scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 683                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
 684                         mesh->drop();
 685
 686                         m_meshnode->setScale(v3f(1));
 687                         // Will be shown when we know the brightness
 688                         m_meshnode->setVisible(false);
 689                 } else {
 690                         infostream<<"LuaEntityCAO::addToScene(): \""<<m_prop->visual
 691                                         <<"\" not supported"<<std::endl;
 692                 }
 693                 updateTextures("");
 694                 updateNodePos();
 695         }
 696
 697         void removeFromScene()
 698         {
 699                 if(m_meshnode){
 700                         m_meshnode->remove();
 701                         m_meshnode = NULL;
 702                 }
 703                 if(m_spritenode){
 704                         m_spritenode->remove();
 705                         m_spritenode = NULL;
 706                 }
 707         }
 708
 709         void updateLight(u8 light_at_pos)
 710         {
 711                 bool is_visible = (m_hp != 0);
 712                 u8 li = decode_light(light_at_pos);
 713                 video::SColor color(255,li,li,li);
 714                 if(m_meshnode){
 715                         setMeshColor(m_meshnode->getMesh(), color);
 716                         m_meshnode->setVisible(is_visible);
 717                 }
 718                 if(m_spritenode){
 719                         m_spritenode->setColor(color);
 720                         m_spritenode->setVisible(is_visible);
 721                 }
 722         }
 723
 724         v3s16 getLightPosition()
 725         {
 726                 return floatToInt(m_position, BS);
 727         }
 728
 729         void updateNodePos()
 730         {
 731                 if(m_meshnode){
 732                         m_meshnode->setPosition(pos_translator.vect_show);
 733                 }
 734                 if(m_spritenode){
 735                         m_spritenode->setPosition(pos_translator.vect_show);
 736                 }
 737         }
 738
 739         void step(float dtime, ClientEnvironment *env)
 740         {
 741                 if(m_prop->physical){
 742                         core::aabbox3d<f32> box = m_prop->collisionbox;
 743                         box.MinEdge *= BS;
 744                         box.MaxEdge *= BS;
 745                         collisionMoveResult moveresult;
 746                         f32 pos_max_d = BS*0.25; // Distance per iteration
 747                         v3f p_pos = m_position;
 748                         v3f p_velocity = m_velocity;
 749                         IGameDef *gamedef = env->getGameDef();
 750                         moveresult = collisionMovePrecise(&env->getMap(), gamedef,
 751                                         pos_max_d, box, dtime, p_pos, p_velocity);
 752                         // Apply results
 753                         m_position = p_pos;
 754                         m_velocity = p_velocity;
 755
 756                         bool is_end_position = moveresult.collides;
 757                         pos_translator.update(m_position, is_end_position, dtime);
 758                         pos_translator.translate(dtime);
 759                         updateNodePos();
 760
 761                         m_velocity += dtime * m_acceleration;
 762                 } else {
 763                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
 764                         m_velocity += dtime * m_acceleration;
 765                         pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
 766                         pos_translator.translate(dtime);
 767                         updateNodePos();
 768                 }
 769
 770                 m_anim_timer += dtime;
 771                 if(m_anim_timer >= m_anim_framelength){
 772                         m_anim_timer -= m_anim_framelength;
 773                         m_anim_frame++;
 774                         if(m_anim_frame >= m_anim_num_frames)
 775                                 m_anim_frame = 0;
 776                 }
 777
 778                 updateTexturePos();
 779
 780                 if(m_reset_textures_timer >= 0){
 781                         m_reset_textures_timer -= dtime;
 782                         if(m_reset_textures_timer <= 0){
 783                                 m_reset_textures_timer = -1;
 784                                 updateTextures("");
 785                         }
 786                 }
 787         }
 788
 789         void updateTexturePos()
 790         {
 791                 if(m_spritenode){
 792                         scene::ICameraSceneNode* camera =
 793                                         m_spritenode->getSceneManager()->getActiveCamera();
 794                         if(!camera)
 795                                 return;
 796                         v3f cam_to_entity = m_spritenode->getAbsolutePosition()
 797                                         - camera->getAbsolutePosition();
 798                         cam_to_entity.normalize();
 799
 800                         int row = m_tx_basepos.Y;
 801                         int col = m_tx_basepos.X;
 802
 803                         if(m_tx_select_horiz_by_yawpitch)
 804                         {
 805                                 if(cam_to_entity.Y > 0.75)
 806                                         col += 5;
 807                                 else if(cam_to_entity.Y < -0.75)
 808                                         col += 4;
 809                                 else{
 810                                         float mob_dir = atan2(cam_to_entity.Z, cam_to_entity.X) / PI * 180.;
 811                                         float dir = mob_dir - m_yaw;
 812                                         dir = wrapDegrees_180(dir);
 813                                         //infostream<<"id="<<m_id<<" dir="<<dir<<std::endl;
 814                                         if(fabs(wrapDegrees_180(dir - 0)) <= 45.1)
 815                                                 col += 2;
 816                                         else if(fabs(wrapDegrees_180(dir - 90)) <= 45.1)
 817                                                 col += 3;
 818                                         else if(fabs(wrapDegrees_180(dir - 180)) <= 45.1)
 819                                                 col += 0;
 820                                         else if(fabs(wrapDegrees_180(dir + 90)) <= 45.1)
 821                                                 col += 1;
 822                                         else
 823                                                 col += 4;
 824                                 }
 825                         }
 826
 827                         // Animation goes downwards
 828                         row += m_anim_frame;
 829
 830                         float txs = m_tx_size.X;
 831                         float tys = m_tx_size.Y;
 832                         setBillboardTextureMatrix(m_spritenode,
 833                                         txs, tys, col, row);
 834                 }
 835         }
 836
 837         void updateTextures(const std::string &mod)
 838         {
 839                 ITextureSource *tsrc = m_gamedef->tsrc();
 840
 841                 if(m_spritenode){
 842                         std::string texturestring = "unknown_block.png";
 843                         if(m_prop->textures.size() >= 1)
 844                                 texturestring = m_prop->textures[0];
 845                         texturestring += mod;
 846                         m_spritenode->setMaterialTexture(0,
 847                                         tsrc->getTextureRaw(texturestring));
 848                 }
 849                 if(m_meshnode){
 850                         for (u32 i = 0; i < 6; ++i)
 851                         {
 852                                 std::string texturestring = "unknown_block.png";
 853                                 if(m_prop->textures.size() > i)
 854                                         texturestring = m_prop->textures[i];
 855                                 texturestring += mod;
 856                                 AtlasPointer ap = tsrc->getTexture(texturestring);
 857
 858                                 // Get the tile texture and atlas transformation
 859                                 video::ITexture* atlas = ap.atlas;
 860                                 v2f pos = ap.pos;
 861                                 v2f size = ap.size;
 862
 863                                 // Set material flags and texture
 864                                 video::SMaterial& material = m_meshnode->getMaterial(i);
 865                                 material.setFlag(video::EMF_LIGHTING, false);
 866                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
 867                                 material.setTexture(0, atlas);
 868                                 material.getTextureMatrix(0).setTextureTranslate(pos.X, pos.Y);
 869                                 material.getTextureMatrix(0).setTextureScale(size.X, size.Y);
 870                         }
 871                 }
 872         }
 873
 874         void processMessage(const std::string &data)
 875         {
 876                 //infostream<<"LuaEntityCAO: Got message"<<std::endl;
 877                 std::istringstream is(data, std::ios::binary);
 878                 // command
 879                 u8 cmd = readU8(is);
 880                 if(cmd == LUAENTITY_CMD_UPDATE_POSITION) // update position
 881                 {
 882                         // do_interpolate
 883                         bool do_interpolate = readU8(is);
 884                         // pos
 885                         m_position = readV3F1000(is);
 886                         // velocity
 887                         m_velocity = readV3F1000(is);
 888                         // acceleration
 889                         m_acceleration = readV3F1000(is);
 890                         // yaw
 891                         m_yaw = readF1000(is);
 892                         // is_end_position (for interpolation)
 893                         bool is_end_position = readU8(is);
 894                         // update_interval
 895                         float update_interval = readF1000(is);
 896
 897                         if(do_interpolate){
 898                                 if(!m_prop->physical)
 899                                         pos_translator.update(m_position, is_end_position, update_interval);
 900                         } else {
 901                                 pos_translator.init(m_position);
 902                         }
 903                         updateNodePos();
 904                 }
 905                 else if(cmd == LUAENTITY_CMD_SET_TEXTURE_MOD) // set texture modification
 906                 {
 907                         std::string mod = deSerializeString(is);
 908                         updateTextures(mod);
 909                 }
 910                 else if(cmd == LUAENTITY_CMD_SET_SPRITE) // set sprite
 911                 {
 912                         v2s16 p = readV2S16(is);
 913                         int num_frames = readU16(is);
 914                         float framelength = readF1000(is);
 915                         bool select_horiz_by_yawpitch = readU8(is);
 916
 917                         m_tx_basepos = p;
 918                         m_anim_num_frames = num_frames;
 919                         m_anim_framelength = framelength;
 920                         m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
 921
 922                         updateTexturePos();
 923                 }
 924                 else if(cmd == LUAENTITY_CMD_PUNCHED)
 925                 {
 926                         /*s16 damage =*/ readS16(is);
 927                         s16 result_hp = readS16(is);
 928
 929                         m_hp = result_hp;
 930                         // TODO: Execute defined fast response
 931                 }
 932                 else if(cmd == LUAENTITY_CMD_UPDATE_ARMOR_GROUPS)
 933                 {
 934                         m_armor_groups.clear();
 935                         int armor_groups_size = readU16(is);
 936                         for(int i=0; i<armor_groups_size; i++){
 937                                 std::string name = deSerializeString(is);
 938                                 int rating = readS16(is);
 939                                 m_armor_groups[name] = rating;
 940                         }
 941                 }
 942         }
 943
 944         bool directReportPunch(v3f dir, const ItemStack *punchitem=NULL,
 945                         float time_from_last_punch=1000000)
 946         {
 947                 assert(punchitem);
 948                 const ToolCapabilities *toolcap =
 949                                 &punchitem->getToolCapabilities(m_gamedef->idef());
 950                 PunchDamageResult result = getPunchDamage(
 951                                 m_armor_groups,
 952                                 toolcap,
 953                                 punchitem,
 954                                 time_from_last_punch);
 955
 956                 if(result.did_punch && result.damage != 0)
 957                 {
 958                         if(result.damage < m_hp){
 959                                 m_hp -= result.damage;
 960                         } else {
 961                                 m_hp = 0;
 962                                 // TODO: Execute defined fast response
 963                                 // As there is no definition, make a smoke puff
 964                                 ClientSimpleObject *simple = createSmokePuff(
 965                                                 m_smgr, m_env, m_position,
 966                                                 m_prop->visual_size * BS);
 967                                 m_env->addSimpleObject(simple);
 968                         }
 969                         // TODO: Execute defined fast response
 970                         // Flashing shall suffice as there is no definition
 971                         updateTextures("^[brighten");
 972                         m_reset_textures_timer = 0.1;
 973                 }
 974
 975                 return false;
 976         }
 977
 978         std::string debugInfoText()
 979         {
 980                 std::ostringstream os(std::ios::binary);
 981                 os<<"LuaEntityCAO hp="<<m_hp<<"\n";
 982                 os<<"armor={";
 983                 for(ItemGroupList::const_iterator i = m_armor_groups.begin();
 984                                 i != m_armor_groups.end(); i++){
 985                         os<<i->first<<"="<<i->second<<", ";
 986                 }
 987                 os<<"}";
 988                 return os.str();
 989         }
 990 };
 991
 992 // Prototype
 993 LuaEntityCAO proto_LuaEntityCAO(NULL, NULL);
 994
 995 /*
 996         PlayerCAO
 997 */
 998
 999 class PlayerCAO : public ClientActiveObject
1000 {
1001 private:
1002         core::aabbox3d<f32> m_selection_box;
1003         scene::IMeshSceneNode *m_node;
1004         scene::ITextSceneNode* m_text;
1005         std::string m_name;
1006         v3f m_position;
1007         float m_yaw;
1008         SmoothTranslator pos_translator;
1009         bool m_is_local_player;
1010         LocalPlayer *m_local_player;
1011         float m_damage_visual_timer;
1012         bool m_dead;
1013         float m_step_distance_counter;
1014         std::string m_wielded_item;
1015
1016 public:
1017         PlayerCAO(IGameDef *gamedef, ClientEnvironment *env):
1018                 ClientActiveObject(0, gamedef, env),
1019                 m_selection_box(-BS/3.,0.0,-BS/3., BS/3.,BS*2.0,BS/3.),
1020                 m_node(NULL),
1021                 m_text(NULL),
1022                 m_position(v3f(0,10*BS,0)),
1023                 m_yaw(0),
1024                 m_is_local_player(false),
1025                 m_local_player(NULL),
1026                 m_damage_visual_timer(0),
1027                 m_dead(false),
1028                 m_step_distance_counter(0),
1029                 m_wielded_item("")
1030         {
1031                 if(gamedef == NULL)
1032                         ClientActiveObject::registerType(getType(), create);
1033         }
1034
1035         void initialize(const std::string &data)
1036         {
1037                 infostream<<"PlayerCAO: Got init data"<<std::endl;
1038
1039                 std::istringstream is(data, std::ios::binary);
1040                 // version
1041                 u8 version = readU8(is);
1042                 // check version
1043                 if(version != 0)
1044                         return;
1045                 // name
1046                 m_name = deSerializeString(is);
1047                 // pos
1048                 m_position = readV3F1000(is);
1049                 // yaw
1050                 m_yaw = readF1000(is);
1051                 // dead
1052                 m_dead = readU8(is);
1053                 // wielded item
1054                 try{
1055                         m_wielded_item = deSerializeString(is);
1056                 }
1057                 catch(SerializationError &e){}
1058
1059                 pos_translator.init(m_position);
1060
1061                 Player *player = m_env->getPlayer(m_name.c_str());
1062                 if(player && player->isLocal()){
1063                         m_is_local_player = true;
1064                         m_local_player = (LocalPlayer*)player;
1065                 }
1066         }
1067
1068         ~PlayerCAO()
1069         {
1070                 if(m_node)
1071                         m_node->remove();
1072         }
1073
1074         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env)
1075         {
1076                 return new PlayerCAO(gamedef, env);
1077         }
1078
1079         u8 getType() const
1080         {
1081                 return ACTIVEOBJECT_TYPE_PLAYER;
1082         }
1083         core::aabbox3d<f32>* getSelectionBox()
1084         {
1085                 if(m_is_local_player)
1086                         return NULL;
1087                 if(m_dead)
1088                         return NULL;
1089                 return &m_selection_box;
1090         }
1091         v3f getPosition()
1092         {
1093                 return pos_translator.vect_show;
1094         }
1095
1096         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
1097                         IrrlichtDevice *irr)
1098         {
1099                 if(m_node != NULL)
1100                         return;
1101                 if(m_is_local_player)
1102                         return;
1103
1104                 //video::IVideoDriver* driver = smgr->getVideoDriver();
1105                 gui::IGUIEnvironment* gui = irr->getGUIEnvironment();
1106
1107                 scene::SMesh *mesh = new scene::SMesh();
1108                 { // Front
1109                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
1110                 video::SColor c(255,255,255,255);
1111                 video::S3DVertex vertices[4] =
1112                 {
1113                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
1114                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
1115                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
1116                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
1117                 };
1118                 u16 indices[] = {0,1,2,2,3,0};
1119                 buf->append(vertices, 4, indices, 6);
1120                 // Set material
1121                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
1122                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
1123                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
1124                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
1125                 // Add to mesh
1126                 mesh->addMeshBuffer(buf);
1127                 buf->drop();
1128                 }
1129                 { // Back
1130                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
1131                 video::SColor c(255,255,255,255);
1132                 video::S3DVertex vertices[4] =
1133                 {
1134                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
1135                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
1136                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
1137                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
1138                 };
1139                 u16 indices[] = {0,1,2,2,3,0};
1140                 buf->append(vertices, 4, indices, 6);
1141                 // Set material
1142                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
1143                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
1144                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
1145                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1146                 // Add to mesh
1147                 mesh->addMeshBuffer(buf);
1148                 buf->drop();
1149                 }
1150                 m_node = smgr->addMeshSceneNode(mesh, NULL);
1151                 mesh->drop();
1152                 // Set it to use the materials of the meshbuffers directly.
1153                 // This is needed for changing the texture in the future
1154                 m_node->setReadOnlyMaterials(true);
1155                 updateNodePos();
1156
1157                 // Add a text node for showing the name
1158                 std::wstring wname = narrow_to_wide(m_name);
1159                 m_text = smgr->addTextSceneNode(gui->getBuiltInFont(),
1160                                 wname.c_str(), video::SColor(255,255,255,255), m_node);
1161                 m_text->setPosition(v3f(0, (f32)BS*2.1, 0));
1162
1163                 updateTextures("");
1164                 updateVisibility();
1165                 updateNodePos();
1166         }
1167
1168         void removeFromScene()
1169         {
1170                 if(m_node == NULL)
1171                         return;
1172
1173                 m_node->remove();
1174                 m_node = NULL;
1175         }
1176
1177         void updateLight(u8 light_at_pos)
1178         {
1179                 if(m_node == NULL)
1180                         return;
1181
1182                 u8 li = decode_light(light_at_pos);
1183                 video::SColor color(255,li,li,li);
1184                 setMeshColor(m_node->getMesh(), color);
1185
1186                 updateVisibility();
1187         }
1188
1189         v3s16 getLightPosition()
1190         {
1191                 return floatToInt(m_position+v3f(0,BS*1.5,0), BS);
1192         }
1193
1194         void updateVisibility()
1195         {
1196                 if(m_node == NULL)
1197                         return;
1198
1199                 m_node->setVisible(!m_dead);
1200         }
1201
1202         void updateNodePos()
1203         {
1204                 if(m_node == NULL)
1205                         return;
1206
1207                 m_node->setPosition(pos_translator.vect_show);
1208
1209                 v3f rot = m_node->getRotation();
1210                 rot.Y = -m_yaw;
1211                 m_node->setRotation(rot);
1212         }
1213
1214         void step(float dtime, ClientEnvironment *env)
1215         {
1216                 v3f lastpos = pos_translator.vect_show;
1217                 pos_translator.translate(dtime);
1218                 float moved = lastpos.getDistanceFrom(pos_translator.vect_show);
1219                 updateVisibility();
1220                 updateNodePos();
1221
1222                 if(m_damage_visual_timer > 0){
1223                         m_damage_visual_timer -= dtime;
1224                         if(m_damage_visual_timer <= 0){
1225                                 updateTextures("");
1226                         }
1227                 }
1228
1229                 m_step_distance_counter += moved;
1230                 if(m_step_distance_counter > 1.5*BS){
1231                         m_step_distance_counter = 0;
1232                         if(!m_is_local_player){
1233                                 INodeDefManager *ndef = m_gamedef->ndef();
1234                                 v3s16 p = floatToInt(getPosition()+v3f(0,-0.5*BS, 0), BS);
1235                                 MapNode n = m_env->getMap().getNodeNoEx(p);
1236                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
1237                                 m_gamedef->sound()->playSoundAt(spec, false, getPosition());
1238                         }
1239                 }
1240         }
1241
1242         void processMessage(const std::string &data)
1243         {
1244                 //infostream<<"PlayerCAO: Got message"<<std::endl;
1245                 std::istringstream is(data, std::ios::binary);
1246                 // command
1247                 u8 cmd = readU8(is);
1248                 if(cmd == 0) // update position
1249                 {
1250                         // pos
1251                         m_position = readV3F1000(is);
1252                         // yaw
1253                         m_yaw = readF1000(is);
1254
1255                         pos_translator.update(m_position, false);
1256
1257                         updateNodePos();
1258                 }
1259                 else if(cmd == 1) // punched
1260                 {
1261                         // damage
1262                         s16 damage = readS16(is);
1263                         m_damage_visual_timer = 0.05;
1264                         if(damage >= 2)
1265                                 m_damage_visual_timer += 0.05 * damage;
1266                         updateTextures("^[brighten");
1267                 }
1268                 else if(cmd == 2) // died or respawned
1269                 {
1270                         m_dead = readU8(is);
1271                         updateVisibility();
1272                 }
1273                 else if(cmd == 3) // wielded item
1274                 {
1275                         m_wielded_item = deSerializeString(is);
1276                         updateWieldedItem();
1277                 }
1278         }
1279
1280         void updateTextures(const std::string &mod)
1281         {
1282                 if(!m_node)
1283                         return;
1284                 ITextureSource *tsrc = m_gamedef->tsrc();
1285                 scene::IMesh *mesh = m_node->getMesh();
1286                 if(mesh){
1287                         {
1288                                 std::string tname = "player.png";
1289                                 tname += mod;
1290                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1291                                 buf->getMaterial().setTexture(0,
1292                                                 tsrc->getTextureRaw(tname));
1293                         }
1294                         {
1295                                 std::string tname = "player_back.png";
1296                                 tname += mod;
1297                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1298                                 buf->getMaterial().setTexture(0,
1299                                                 tsrc->getTextureRaw(tname));
1300                         }
1301                 }
1302         }
1303
1304         void updateWieldedItem()
1305         {
1306                 if(m_is_local_player)
1307                 {
1308                         // ignoring player item for local player
1309                         return;
1310                 }
1311
1312                 ItemStack item;
1313                 try
1314                 {
1315                         item.deSerialize(m_wielded_item, m_gamedef->idef());
1316                 }
1317                 catch(SerializationError &e)
1318                 {
1319                         errorstream<<"PlayerCAO: SerializationError "
1320                                 "while reading wielded item: "
1321                                 <<m_wielded_item<<std::endl;
1322                         return;
1323                 }
1324
1325                 // do something with the item, for example:
1326                 Player *player = m_env->getPlayer(m_name.c_str());
1327                 if(player)
1328                 {
1329                         InventoryList *inv = player->inventory.getList("main");
1330                         assert(inv);
1331                         inv->changeItem(0, item);
1332                 }
1333
1334                 if(item.empty())
1335                 {
1336                         infostream<<"PlayerCAO: empty player item for player "
1337                                         <<m_name<<std::endl;
1338                 }
1339                 else
1340                 {
1341                         infostream<<"PlayerCAO: player item for player "
1342                                         <<m_name<<": "
1343                                         <<item.getItemString()<<std::endl;
1344                 }
1345         }
1346
1347 };
1348
1349 // Prototype
1350 PlayerCAO proto_PlayerCAO(NULL, NULL);
1351
1352 /*
1353         GenericCAO
1354 */
1355
1356 #include "genericobject.h"
1357
1358 class GenericCAO : public ClientActiveObject
1359 {
1360 private:
1361         // Property-ish things
1362         s16 m_hp_max;
1363         bool m_physical;
1364         float m_weight;
1365         core::aabbox3d<f32> m_collisionbox;
1366         std::string m_visual;
1367         v2f m_visual_size;
1368         core::array<std::string> m_textures;
1369         v2s16 m_spritediv;
1370         //
1371         scene::ISceneManager *m_smgr;
1372         core::aabbox3d<f32> m_selection_box;
1373         scene::IMeshSceneNode *m_meshnode;
1374         scene::IBillboardSceneNode *m_spritenode;
1375         v3f m_position;
1376         v3f m_velocity;
1377         v3f m_acceleration;
1378         float m_yaw;
1379         s16 m_hp;
1380         SmoothTranslator pos_translator;
1381         // Spritesheet/animation stuff
1382         v2f m_tx_size;
1383         v2s16 m_tx_basepos;
1384         bool m_tx_select_horiz_by_yawpitch;
1385         int m_anim_frame;
1386         int m_anim_num_frames;
1387         float m_anim_framelength;
1388         float m_anim_timer;
1389         ItemGroupList m_armor_groups;
1390         float m_reset_textures_timer;
1391
1392 public:
1393         GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
1394                 ClientActiveObject(0, gamedef, env),
1395                 //
1396                 m_hp_max(1),
1397                 m_physical(false),
1398                 m_weight(5),
1399                 m_collisionbox(-0.5,-0.5,-0.5, 0.5,0.5,0.5),
1400                 m_visual("sprite"),
1401                 m_visual_size(1,1),
1402                 m_spritediv(1,1),
1403                 //
1404                 m_smgr(NULL),
1405                 m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
1406                 m_meshnode(NULL),
1407                 m_spritenode(NULL),
1408                 m_position(v3f(0,10*BS,0)),
1409                 m_velocity(v3f(0,0,0)),
1410                 m_acceleration(v3f(0,0,0)),
1411                 m_yaw(0),
1412                 m_hp(1),
1413                 m_tx_size(1,1),
1414                 m_tx_basepos(0,0),
1415                 m_tx_select_horiz_by_yawpitch(false),
1416                 m_anim_frame(0),
1417                 m_anim_num_frames(1),
1418                 m_anim_framelength(0.2),
1419                 m_anim_timer(0),
1420                 m_reset_textures_timer(-1)
1421         {
1422                 m_textures.push_back("unknown_object.png");
1423                 if(gamedef == NULL)
1424                         ClientActiveObject::registerType(getType(), create);
1425         }
1426
1427         void initialize(const std::string &data)
1428         {
1429                 infostream<<"GenericCAO: Got init data"<<std::endl;
1430
1431                 std::istringstream is(data, std::ios::binary);
1432                 // version
1433                 u8 version = readU8(is);
1434                 // check version
1435                 if(version != 1)
1436                         return;
1437                 // pos
1438                 m_position = readV3F1000(is);
1439                 // yaw
1440                 m_yaw = readF1000(is);
1441                 // hp
1442                 m_hp = readS16(is);
1443
1444                 pos_translator.init(m_position);
1445
1446                 updateNodePos();
1447         }
1448
1449         ~GenericCAO()
1450         {
1451         }
1452
1453         static ClientActiveObject* create(IGameDef *gamedef, ClientEnvironment *env)
1454         {
1455                 return new GenericCAO(gamedef, env);
1456         }
1457
1458         u8 getType() const
1459         {
1460                 return ACTIVEOBJECT_TYPE_GENERIC;
1461         }
1462         core::aabbox3d<f32>* getSelectionBox()
1463         {
1464                 return &m_selection_box;
1465         }
1466         v3f getPosition()
1467         {
1468                 return pos_translator.vect_show;
1469         }
1470
1471         void removeFromScene()
1472         {
1473                 if(m_meshnode){
1474                         m_meshnode->remove();
1475                         m_meshnode = NULL;
1476                 }
1477                 if(m_spritenode){
1478                         m_spritenode->remove();
1479                         m_spritenode = NULL;
1480                 }
1481         }
1482
1483         void addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
1484                         IrrlichtDevice *irr)
1485         {
1486                 m_smgr = smgr;
1487
1488                 if(m_meshnode != NULL || m_spritenode != NULL)
1489                         return;
1490
1491                 //video::IVideoDriver* driver = smgr->getVideoDriver();
1492
1493                 if(m_visual == "sprite"){
1494                         infostream<<"GenericCAO::addToScene(): single_sprite"<<std::endl;
1495                         m_spritenode = smgr->addBillboardSceneNode(
1496                                         NULL, v2f(1, 1), v3f(0,0,0), -1);
1497                         m_spritenode->setMaterialTexture(0,
1498                                         tsrc->getTextureRaw("unknown_block.png"));
1499                         m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
1500                         m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
1501                         m_spritenode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
1502                         m_spritenode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
1503                         m_spritenode->setColor(video::SColor(255,0,0,0));
1504                         m_spritenode->setVisible(false); /* Set visible when brightness is known */
1505                         m_spritenode->setSize(m_visual_size*BS);
1506                         {
1507                                 const float txs = 1.0 / 1;
1508                                 const float tys = 1.0 / 1;
1509                                 setBillboardTextureMatrix(m_spritenode,
1510                                                 txs, tys, 0, 0);
1511                         }
1512                 } else if(m_visual == "cube"){
1513                         infostream<<"GenericCAO::addToScene(): cube"<<std::endl;
1514                         scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
1515                         m_meshnode = smgr->addMeshSceneNode(mesh, NULL);
1516                         mesh->drop();
1517
1518                         m_meshnode->setScale(v3f(1));
1519                         // Will be shown when we know the brightness
1520                         m_meshnode->setVisible(false);
1521                 } else {
1522                         infostream<<"GenericCAO::addToScene(): \""<<m_visual
1523                                         <<"\" not supported"<<std::endl;
1524                 }
1525                 updateTextures("");
1526                 updateNodePos();
1527         }
1528
1529         void updateVisuals()
1530         {
1531                 removeFromScene();
1532                 // We haven't got any IrrlichtDevices but it isn't actually needed
1533                 addToScene(m_smgr, m_gamedef->tsrc(), NULL);
1534         }
1535
1536         void updateLight(u8 light_at_pos)
1537         {
1538                 bool is_visible = (m_hp != 0);
1539                 u8 li = decode_light(light_at_pos);
1540                 video::SColor color(255,li,li,li);
1541                 if(m_meshnode){
1542                         setMeshColor(m_meshnode->getMesh(), color);
1543                         m_meshnode->setVisible(is_visible);
1544                 }
1545                 if(m_spritenode){
1546                         m_spritenode->setColor(color);
1547                         m_spritenode->setVisible(is_visible);
1548                 }
1549         }
1550
1551         v3s16 getLightPosition()
1552         {
1553                 return floatToInt(m_position, BS);
1554         }
1555
1556         void updateNodePos()
1557         {
1558                 if(m_meshnode){
1559                         m_meshnode->setPosition(pos_translator.vect_show);
1560                 }
1561                 if(m_spritenode){
1562                         m_spritenode->setPosition(pos_translator.vect_show);
1563                 }
1564         }
1565
1566         void step(float dtime, ClientEnvironment *env)
1567         {
1568                 if(m_physical){
1569                         core::aabbox3d<f32> box = m_collisionbox;
1570                         box.MinEdge *= BS;
1571                         box.MaxEdge *= BS;
1572                         collisionMoveResult moveresult;
1573                         f32 pos_max_d = BS*0.25; // Distance per iteration
1574                         v3f p_pos = m_position;
1575                         v3f p_velocity = m_velocity;
1576                         IGameDef *gamedef = env->getGameDef();
1577                         moveresult = collisionMovePrecise(&env->getMap(), gamedef,
1578                                         pos_max_d, box, dtime, p_pos, p_velocity);
1579                         // Apply results
1580                         m_position = p_pos;
1581                         m_velocity = p_velocity;
1582
1583                         bool is_end_position = moveresult.collides;
1584                         pos_translator.update(m_position, is_end_position, dtime);
1585                         pos_translator.translate(dtime);
1586                         updateNodePos();
1587
1588                         m_velocity += dtime * m_acceleration;
1589                 } else {
1590                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
1591                         m_velocity += dtime * m_acceleration;
1592                         pos_translator.update(m_position, pos_translator.aim_is_end, pos_translator.anim_time);
1593                         pos_translator.translate(dtime);
1594                         updateNodePos();
1595                 }
1596
1597                 m_anim_timer += dtime;
1598                 if(m_anim_timer >= m_anim_framelength){
1599                         m_anim_timer -= m_anim_framelength;
1600                         m_anim_frame++;
1601                         if(m_anim_frame >= m_anim_num_frames)
1602                                 m_anim_frame = 0;
1603                 }
1604
1605                 updateTexturePos();
1606
1607                 if(m_reset_textures_timer >= 0){
1608                         m_reset_textures_timer -= dtime;
1609                         if(m_reset_textures_timer <= 0){
1610                                 m_reset_textures_timer = -1;
1611                                 updateTextures("");
1612                         }
1613                 }
1614         }
1615
1616         void updateTexturePos()
1617         {
1618                 if(m_spritenode){
1619                         scene::ICameraSceneNode* camera =
1620                                         m_spritenode->getSceneManager()->getActiveCamera();
1621                         if(!camera)
1622                                 return;
1623                         v3f cam_to_entity = m_spritenode->getAbsolutePosition()
1624                                         - camera->getAbsolutePosition();
1625                         cam_to_entity.normalize();
1626
1627                         int row = m_tx_basepos.Y;
1628                         int col = m_tx_basepos.X;
1629
1630                         if(m_tx_select_horiz_by_yawpitch)
1631                         {
1632                                 if(cam_to_entity.Y > 0.75)
1633                                         col += 5;
1634                                 else if(cam_to_entity.Y < -0.75)
1635                                         col += 4;
1636                                 else{
1637                                         float mob_dir = atan2(cam_to_entity.Z, cam_to_entity.X) / PI * 180.;
1638                                         float dir = mob_dir - m_yaw;
1639                                         dir = wrapDegrees_180(dir);
1640                                         //infostream<<"id="<<m_id<<" dir="<<dir<<std::endl;
1641                                         if(fabs(wrapDegrees_180(dir - 0)) <= 45.1)
1642                                                 col += 2;
1643                                         else if(fabs(wrapDegrees_180(dir - 90)) <= 45.1)
1644                                                 col += 3;
1645                                         else if(fabs(wrapDegrees_180(dir - 180)) <= 45.1)
1646                                                 col += 0;
1647                                         else if(fabs(wrapDegrees_180(dir + 90)) <= 45.1)
1648                                                 col += 1;
1649                                         else
1650                                                 col += 4;
1651                                 }
1652                         }
1653
1654                         // Animation goes downwards
1655                         row += m_anim_frame;
1656
1657                         float txs = m_tx_size.X;
1658                         float tys = m_tx_size.Y;
1659                         setBillboardTextureMatrix(m_spritenode,
1660                                         txs, tys, col, row);
1661                 }
1662         }
1663
1664         void updateTextures(const std::string &mod)
1665         {
1666                 ITextureSource *tsrc = m_gamedef->tsrc();
1667
1668                 if(m_spritenode){
1669                         std::string texturestring = "unknown_block.png";
1670                         if(m_textures.size() >= 1)
1671                                 texturestring = m_textures[0];
1672                         texturestring += mod;
1673                         m_spritenode->setMaterialTexture(0,
1674                                         tsrc->getTextureRaw(texturestring));
1675                 }
1676                 if(m_meshnode){
1677                         for (u32 i = 0; i < 6; ++i)
1678                         {
1679                                 std::string texturestring = "unknown_block.png";
1680                                 if(m_textures.size() > i)
1681                                         texturestring = m_textures[i];
1682                                 texturestring += mod;
1683                                 AtlasPointer ap = tsrc->getTexture(texturestring);
1684
1685                                 // Get the tile texture and atlas transformation
1686                                 video::ITexture* atlas = ap.atlas;
1687                                 v2f pos = ap.pos;
1688                                 v2f size = ap.size;
1689
1690                                 // Set material flags and texture
1691                                 video::SMaterial& material = m_meshnode->getMaterial(i);
1692                                 material.setFlag(video::EMF_LIGHTING, false);
1693                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1694                                 material.setTexture(0, atlas);
1695                                 material.getTextureMatrix(0).setTextureTranslate(pos.X, pos.Y);
1696                                 material.getTextureMatrix(0).setTextureScale(size.X, size.Y);
1697                         }
1698                 }
1699         }
1700
1701         void processMessage(const std::string &data)
1702         {
1703                 //infostream<<"GenericCAO: Got message"<<std::endl;
1704                 std::istringstream is(data, std::ios::binary);
1705                 // command
1706                 u8 cmd = readU8(is);
1707                 if(cmd == GENERIC_CMD_SET_PROPERTIES)
1708                 {
1709                         m_hp_max = readS16(is);
1710                         m_physical = readU8(is);
1711                         m_weight = readF1000(is);
1712                         m_collisionbox.MinEdge = readV3F1000(is);
1713                         m_collisionbox.MaxEdge = readV3F1000(is);
1714                         m_visual = deSerializeString(is);
1715                         m_visual_size = readV2F1000(is);
1716                         m_textures.clear();
1717                         u32 texture_count = readU16(is);
1718                         for(u32 i=0; i<texture_count; i++){
1719                                 m_textures.push_back(deSerializeString(is));
1720                         }
1721                         m_spritediv = readV2S16(is);
1722
1723                         m_selection_box = m_collisionbox;
1724                         m_selection_box.MinEdge *= BS;
1725                         m_selection_box.MaxEdge *= BS;
1726
1727                         m_tx_size.X = 1.0 / m_spritediv.X;
1728                         m_tx_size.Y = 1.0 / m_spritediv.Y;
1729
1730                         updateVisuals();
1731                 }
1732                 else if(cmd == GENERIC_CMD_UPDATE_POSITION)
1733                 {
1734                         m_position = readV3F1000(is);
1735                         m_velocity = readV3F1000(is);
1736                         m_acceleration = readV3F1000(is);
1737                         m_yaw = readF1000(is);
1738                         bool do_interpolate = readU8(is);
1739                         bool is_end_position = readU8(is);
1740                         float update_interval = readF1000(is);
1741
1742                         if(do_interpolate){
1743                                 if(!m_physical)
1744                                         pos_translator.update(m_position, is_end_position, update_interval);
1745                         } else {
1746                                 pos_translator.init(m_position);
1747                         }
1748                         updateNodePos();
1749                 }
1750                 else if(cmd == GENERIC_CMD_SET_TEXTURE_MOD)
1751                 {
1752                         std::string mod = deSerializeString(is);
1753                         updateTextures(mod);
1754                 }
1755                 else if(cmd == GENERIC_CMD_SET_SPRITE)
1756                 {
1757                         v2s16 p = readV2S16(is);
1758                         int num_frames = readU16(is);
1759                         float framelength = readF1000(is);
1760                         bool select_horiz_by_yawpitch = readU8(is);
1761
1762                         m_tx_basepos = p;
1763                         m_anim_num_frames = num_frames;
1764                         m_anim_framelength = framelength;
1765                         m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1766
1767                         updateTexturePos();
1768                 }
1769                 else if(cmd == GENERIC_CMD_PUNCHED)
1770                 {
1771                         /*s16 damage =*/ readS16(is);
1772                         s16 result_hp = readS16(is);
1773
1774                         m_hp = result_hp;
1775                         // TODO: Execute defined fast response
1776                 }
1777                 else if(cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS)
1778                 {
1779                         m_armor_groups.clear();
1780                         int armor_groups_size = readU16(is);
1781                         for(int i=0; i<armor_groups_size; i++){
1782                                 std::string name = deSerializeString(is);
1783                                 int rating = readS16(is);
1784                                 m_armor_groups[name] = rating;
1785                         }
1786                 }
1787         }
1788
1789         bool directReportPunch(v3f dir, const ItemStack *punchitem=NULL,
1790                         float time_from_last_punch=1000000)
1791         {
1792                 assert(punchitem);
1793                 const ToolCapabilities *toolcap =
1794                                 &punchitem->getToolCapabilities(m_gamedef->idef());
1795                 PunchDamageResult result = getPunchDamage(
1796                                 m_armor_groups,
1797                                 toolcap,
1798                                 punchitem,
1799                                 time_from_last_punch);
1800
1801                 if(result.did_punch && result.damage != 0)
1802                 {
1803                         if(result.damage < m_hp){
1804                                 m_hp -= result.damage;
1805                         } else {
1806                                 m_hp = 0;
1807                                 // TODO: Execute defined fast response
1808                                 // As there is no definition, make a smoke puff
1809                                 ClientSimpleObject *simple = createSmokePuff(
1810                                                 m_smgr, m_env, m_position,
1811                                                 m_visual_size * BS);
1812                                 m_env->addSimpleObject(simple);
1813                         }
1814                         // TODO: Execute defined fast response
1815                         // Flashing shall suffice as there is no definition
1816                         updateTextures("^[brighten");
1817                         m_reset_textures_timer = 0.1;
1818                 }
1819
1820                 return false;
1821         }
1822
1823         std::string debugInfoText()
1824         {
1825                 std::ostringstream os(std::ios::binary);
1826                 os<<"GenericCAO hp="<<m_hp<<"\n";
1827                 os<<"armor={";
1828                 for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1829                                 i != m_armor_groups.end(); i++){
1830                         os<<i->first<<"="<<i->second<<", ";
1831                 }
1832                 os<<"}";
1833                 return os.str();
1834         }
1835 };
1836
1837 // Prototype
1838 GenericCAO proto_GenericCAO(NULL, NULL);
1839
1840