src/client/content_cao.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "content_cao.h"
  21 #include <IBillboardSceneNode.h>
  22 #include <ICameraSceneNode.h>
  23 #include <ITextSceneNode.h>
  24 #include <IMeshManipulator.h>
  25 #include <IAnimatedMeshSceneNode.h>
  26 #include "client/client.h"
  27 #include "client/renderingengine.h"
  28 #include "client/sound.h"
  29 #include "client/tile.h"
  30 #include "util/basic_macros.h"
  31 #include "util/numeric.h" // For IntervalLimiter & setPitchYawRoll
  32 #include "util/serialize.h"
  33 #include "camera.h" // CameraModes
  34 #include "collision.h"
  35 #include "content_cso.h"
  36 #include "environment.h"
  37 #include "itemdef.h"
  38 #include "localplayer.h"
  39 #include "map.h"
  40 #include "mesh.h"
  41 #include "nodedef.h"
  42 #include "serialization.h" // For decompressZlib
  43 #include "settings.h"
  44 #include "sound.h"
  45 #include "tool.h"
  46 #include "wieldmesh.h"
  47 #include <algorithm>
  48 #include <cmath>
  49 #include "client/shader.h"
  50
  51 class Settings;
  52 struct ToolCapabilities;
  53
  54 std::unordered_map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
  55
  56 template<typename T>
  57 void SmoothTranslator<T>::init(T current)
  58 {
  59         val_old = current;
  60         val_current = current;
  61         val_target = current;
  62         anim_time = 0;
  63         anim_time_counter = 0;
  64         aim_is_end = true;
  65 }
  66
  67 template<typename T>
  68 void SmoothTranslator<T>::update(T new_target, bool is_end_position, float update_interval)
  69 {
  70         aim_is_end = is_end_position;
  71         val_old = val_current;
  72         val_target = new_target;
  73         if (update_interval > 0) {
  74                 anim_time = update_interval;
  75         } else {
  76                 if (anim_time < 0.001 || anim_time > 1.0)
  77                         anim_time = anim_time_counter;
  78                 else
  79                         anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
  80         }
  81         anim_time_counter = 0;
  82 }
  83
  84 template<typename T>
  85 void SmoothTranslator<T>::translate(f32 dtime)
  86 {
  87         anim_time_counter = anim_time_counter + dtime;
  88         T val_diff = val_target - val_old;
  89         f32 moveratio = 1.0;
  90         if (anim_time > 0.001)
  91                 moveratio = anim_time_counter / anim_time;
  92         f32 move_end = aim_is_end ? 1.0 : 1.5;
  93
  94         // Move a bit less than should, to avoid oscillation
  95         moveratio = std::min(moveratio * 0.8f, move_end);
  96         val_current = val_old + val_diff * moveratio;
  97 }
  98
  99 void SmoothTranslatorWrapped::translate(f32 dtime)
 100 {
 101         anim_time_counter = anim_time_counter + dtime;
 102         f32 val_diff = std::abs(val_target - val_old);
 103         if (val_diff > 180.f)
 104                 val_diff = 360.f - val_diff;
 105
 106         f32 moveratio = 1.0;
 107         if (anim_time > 0.001)
 108                 moveratio = anim_time_counter / anim_time;
 109         f32 move_end = aim_is_end ? 1.0 : 1.5;
 110
 111         // Move a bit less than should, to avoid oscillation
 112         moveratio = std::min(moveratio * 0.8f, move_end);
 113         wrappedApproachShortest(val_current, val_target,
 114                 val_diff * moveratio, 360.f);
 115 }
 116
 117 void SmoothTranslatorWrappedv3f::translate(f32 dtime)
 118 {
 119         anim_time_counter = anim_time_counter + dtime;
 120
 121         v3f val_diff_v3f;
 122         val_diff_v3f.X = std::abs(val_target.X - val_old.X);
 123         val_diff_v3f.Y = std::abs(val_target.Y - val_old.Y);
 124         val_diff_v3f.Z = std::abs(val_target.Z - val_old.Z);
 125
 126         if (val_diff_v3f.X > 180.f)
 127                 val_diff_v3f.X = 360.f - val_diff_v3f.X;
 128
 129         if (val_diff_v3f.Y > 180.f)
 130                 val_diff_v3f.Y = 360.f - val_diff_v3f.Y;
 131
 132         if (val_diff_v3f.Z > 180.f)
 133                 val_diff_v3f.Z = 360.f - val_diff_v3f.Z;
 134
 135         f32 moveratio = 1.0;
 136         if (anim_time > 0.001)
 137                 moveratio = anim_time_counter / anim_time;
 138         f32 move_end = aim_is_end ? 1.0 : 1.5;
 139
 140         // Move a bit less than should, to avoid oscillation
 141         moveratio = std::min(moveratio * 0.8f, move_end);
 142         wrappedApproachShortest(val_current.X, val_target.X,
 143                 val_diff_v3f.X * moveratio, 360.f);
 144
 145         wrappedApproachShortest(val_current.Y, val_target.Y,
 146                 val_diff_v3f.Y * moveratio, 360.f);
 147
 148         wrappedApproachShortest(val_current.Z, val_target.Z,
 149                 val_diff_v3f.Z * moveratio, 360.f);
 150 }
 151
 152 /*
 153         Other stuff
 154 */
 155
 156 static void setBillboardTextureMatrix(scene::IBillboardSceneNode *bill,
 157                 float txs, float tys, int col, int row)
 158 {
 159         video::SMaterial& material = bill->getMaterial(0);
 160         core::matrix4& matrix = material.getTextureMatrix(0);
 161         matrix.setTextureTranslate(txs*col, tys*row);
 162         matrix.setTextureScale(txs, tys);
 163 }
 164
 165 /*
 166         TestCAO
 167 */
 168
 169 class TestCAO : public ClientActiveObject
 170 {
 171 public:
 172         TestCAO(Client *client, ClientEnvironment *env);
 173         virtual ~TestCAO() = default;
 174
 175         ActiveObjectType getType() const
 176         {
 177                 return ACTIVEOBJECT_TYPE_TEST;
 178         }
 179
 180         static ClientActiveObject* create(Client *client, ClientEnvironment *env);
 181
 182         void addToScene(ITextureSource *tsrc);
 183         void removeFromScene(bool permanent);
 184         void updateLight(u8 light_at_pos);
 185         v3s16 getLightPosition();
 186         void updateNodePos();
 187
 188         void step(float dtime, ClientEnvironment *env);
 189
 190         void processMessage(const std::string &data);
 191
 192         bool getCollisionBox(aabb3f *toset) const { return false; }
 193 private:
 194         scene::IMeshSceneNode *m_node;
 195         v3f m_position;
 196 };
 197
 198 // Prototype
 199 TestCAO proto_TestCAO(NULL, NULL);
 200
 201 TestCAO::TestCAO(Client *client, ClientEnvironment *env):
 202         ClientActiveObject(0, client, env),
 203         m_node(NULL),
 204         m_position(v3f(0,10*BS,0))
 205 {
 206         ClientActiveObject::registerType(getType(), create);
 207 }
 208
 209 ClientActiveObject* TestCAO::create(Client *client, ClientEnvironment *env)
 210 {
 211         return new TestCAO(client, env);
 212 }
 213
 214 void TestCAO::addToScene(ITextureSource *tsrc)
 215 {
 216         if(m_node != NULL)
 217                 return;
 218
 219         //video::IVideoDriver* driver = smgr->getVideoDriver();
 220
 221         scene::SMesh *mesh = new scene::SMesh();
 222         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 223         video::SColor c(255,255,255,255);
 224         video::S3DVertex vertices[4] =
 225         {
 226                 video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
 227                 video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
 228                 video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
 229                 video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
 230         };
 231         u16 indices[] = {0,1,2,2,3,0};
 232         buf->append(vertices, 4, indices, 6);
 233         // Set material
 234         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 235         buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 236         buf->getMaterial().setTexture(0, tsrc->getTextureForMesh("rat.png"));
 237         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 238         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 239         buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 240         // Add to mesh
 241         mesh->addMeshBuffer(buf);
 242         buf->drop();
 243         m_node = RenderingEngine::get_scene_manager()->addMeshSceneNode(mesh, NULL);
 244         mesh->drop();
 245         updateNodePos();
 246 }
 247
 248 void TestCAO::removeFromScene(bool permanent)
 249 {
 250         if (!m_node)
 251                 return;
 252
 253         m_node->remove();
 254         m_node = NULL;
 255 }
 256
 257 void TestCAO::updateLight(u8 light_at_pos)
 258 {
 259 }
 260
 261 v3s16 TestCAO::getLightPosition()
 262 {
 263         return floatToInt(m_position, BS);
 264 }
 265
 266 void TestCAO::updateNodePos()
 267 {
 268         if (!m_node)
 269                 return;
 270
 271         m_node->setPosition(m_position);
 272         //m_node->setRotation(v3f(0, 45, 0));
 273 }
 274
 275 void TestCAO::step(float dtime, ClientEnvironment *env)
 276 {
 277         if(m_node)
 278         {
 279                 v3f rot = m_node->getRotation();
 280                 //infostream<<"dtime="<<dtime<<", rot.Y="<<rot.Y<<std::endl;
 281                 rot.Y += dtime * 180;
 282                 m_node->setRotation(rot);
 283         }
 284 }
 285
 286 void TestCAO::processMessage(const std::string &data)
 287 {
 288         infostream<<"TestCAO: Got data: "<<data<<std::endl;
 289         std::istringstream is(data, std::ios::binary);
 290         u16 cmd;
 291         is>>cmd;
 292         if(cmd == 0)
 293         {
 294                 v3f newpos;
 295                 is>>newpos.X;
 296                 is>>newpos.Y;
 297                 is>>newpos.Z;
 298                 m_position = newpos;
 299                 updateNodePos();
 300         }
 301 }
 302
 303 /*
 304         GenericCAO
 305 */
 306
 307 #include "genericobject.h"
 308 #include "clientobject.h"
 309
 310 GenericCAO::GenericCAO(Client *client, ClientEnvironment *env):
 311                 ClientActiveObject(0, client, env)
 312 {
 313         if (client == NULL) {
 314                 ClientActiveObject::registerType(getType(), create);
 315         } else {
 316                 m_client = client;
 317         }
 318 }
 319
 320 bool GenericCAO::getCollisionBox(aabb3f *toset) const
 321 {
 322         if (m_prop.physical)
 323         {
 324                 //update collision box
 325                 toset->MinEdge = m_prop.collisionbox.MinEdge * BS;
 326                 toset->MaxEdge = m_prop.collisionbox.MaxEdge * BS;
 327
 328                 toset->MinEdge += m_position;
 329                 toset->MaxEdge += m_position;
 330
 331                 return true;
 332         }
 333
 334         return false;
 335 }
 336
 337 bool GenericCAO::collideWithObjects() const
 338 {
 339         return m_prop.collideWithObjects;
 340 }
 341
 342 void GenericCAO::initialize(const std::string &data)
 343 {
 344         infostream<<"GenericCAO: Got init data"<<std::endl;
 345         processInitData(data);
 346
 347         if (m_is_player) {
 348                 // Check if it's the current player
 349                 LocalPlayer *player = m_env->getLocalPlayer();
 350                 if (player && strcmp(player->getName(), m_name.c_str()) == 0) {
 351                         m_is_local_player = true;
 352                         m_is_visible = false;
 353                         player->setCAO(this);
 354                 }
 355         }
 356
 357         m_enable_shaders = g_settings->getBool("enable_shaders");
 358 }
 359
 360 void GenericCAO::processInitData(const std::string &data)
 361 {
 362         std::istringstream is(data, std::ios::binary);
 363         const u8 version = readU8(is);
 364
 365         if (version < 1) {
 366                 errorstream << "GenericCAO: Unsupported init data version"
 367                                 << std::endl;
 368                 return;
 369         }
 370
 371         // PROTOCOL_VERSION >= 37
 372         m_name = deSerializeString(is);
 373         m_is_player = readU8(is);
 374         m_id = readU16(is);
 375         m_position = readV3F32(is);
 376         m_rotation = readV3F32(is);
 377         m_hp = readU16(is);
 378
 379         const u8 num_messages = readU8(is);
 380
 381         for (int i = 0; i < num_messages; i++) {
 382                 std::string message = deSerializeLongString(is);
 383                 processMessage(message);
 384         }
 385
 386         m_rotation = wrapDegrees_0_360_v3f(m_rotation);
 387         pos_translator.init(m_position);
 388         rot_translator.init(m_rotation);
 389         updateNodePos();
 390 }
 391
 392 GenericCAO::~GenericCAO()
 393 {
 394         removeFromScene(true);
 395 }
 396
 397 bool GenericCAO::getSelectionBox(aabb3f *toset) const
 398 {
 399         if (!m_prop.is_visible || !m_is_visible || m_is_local_player
 400                         || !m_prop.pointable) {
 401                 return false;
 402         }
 403         *toset = m_selection_box;
 404         return true;
 405 }
 406
 407 const v3f GenericCAO::getPosition() const
 408 {
 409         if (!getParent())
 410                 return pos_translator.val_current;
 411
 412         // Calculate real position in world based on MatrixNode
 413         if (m_matrixnode) {
 414                 v3s16 camera_offset = m_env->getCameraOffset();
 415                 return m_matrixnode->getAbsolutePosition() +
 416                                 intToFloat(camera_offset, BS);
 417         }
 418
 419         return m_position;
 420 }
 421
 422 const bool GenericCAO::isImmortal()
 423 {
 424         return itemgroup_get(getGroups(), "immortal");
 425 }
 426
 427 scene::ISceneNode *GenericCAO::getSceneNode() const
 428 {
 429         if (m_meshnode) {
 430                 return m_meshnode;
 431         }
 432
 433         if (m_animated_meshnode) {
 434                 return m_animated_meshnode;
 435         }
 436
 437         if (m_wield_meshnode) {
 438                 return m_wield_meshnode;
 439         }
 440
 441         if (m_spritenode) {
 442                 return m_spritenode;
 443         }
 444         return NULL;
 445 }
 446
 447 scene::IAnimatedMeshSceneNode *GenericCAO::getAnimatedMeshSceneNode() const
 448 {
 449         return m_animated_meshnode;
 450 }
 451
 452 void GenericCAO::setChildrenVisible(bool toset)
 453 {
 454         for (u16 cao_id : m_attachment_child_ids) {
 455                 GenericCAO *obj = m_env->getGenericCAO(cao_id);
 456                 if (obj) {
 457                         obj->setVisible(toset);
 458                 }
 459         }
 460 }
 461
 462 void GenericCAO::setAttachment(int parent_id, const std::string &bone, v3f position, v3f rotation)
 463 {
 464         int old_parent = m_attachment_parent_id;
 465         m_attachment_parent_id = parent_id;
 466         m_attachment_bone = bone;
 467         m_attachment_position = position;
 468         m_attachment_rotation = rotation;
 469
 470         ClientActiveObject *parent = m_env->getActiveObject(parent_id);
 471
 472         if (parent_id != old_parent) {
 473                 if (auto *o = m_env->getActiveObject(old_parent))
 474                         o->removeAttachmentChild(m_id);
 475                 if (parent)
 476                         parent->addAttachmentChild(m_id);
 477         }
 478
 479         updateAttachments();
 480 }
 481
 482 void GenericCAO::getAttachment(int *parent_id, std::string *bone, v3f *position,
 483         v3f *rotation) const
 484 {
 485         *parent_id = m_attachment_parent_id;
 486         *bone = m_attachment_bone;
 487         *position = m_attachment_position;
 488         *rotation = m_attachment_rotation;
 489 }
 490
 491 void GenericCAO::clearChildAttachments()
 492 {
 493         // Cannot use for-loop here: setAttachment() modifies 'm_attachment_child_ids'!
 494         while (!m_attachment_child_ids.empty()) {
 495                 int child_id = *m_attachment_child_ids.begin();
 496
 497                 if (ClientActiveObject *child = m_env->getActiveObject(child_id))
 498                         child->setAttachment(0, "", v3f(), v3f());
 499
 500                 removeAttachmentChild(child_id);
 501         }
 502 }
 503
 504 void GenericCAO::clearParentAttachment()
 505 {
 506         if (m_attachment_parent_id)
 507                 setAttachment(0, "", m_attachment_position, m_attachment_rotation);
 508         else
 509                 setAttachment(0, "", v3f(), v3f());
 510 }
 511
 512 void GenericCAO::addAttachmentChild(int child_id)
 513 {
 514         m_attachment_child_ids.insert(child_id);
 515 }
 516
 517 void GenericCAO::removeAttachmentChild(int child_id)
 518 {
 519         m_attachment_child_ids.erase(child_id);
 520 }
 521
 522 ClientActiveObject* GenericCAO::getParent() const
 523 {
 524         return m_attachment_parent_id ? m_env->getActiveObject(m_attachment_parent_id) :
 525                         nullptr;
 526 }
 527
 528 void GenericCAO::removeFromScene(bool permanent)
 529 {
 530         // Should be true when removing the object permanently
 531         // and false when refreshing (eg: updating visuals)
 532         if (m_env && permanent) {
 533                 // The client does not know whether this object does re-appear to
 534                 // a later time, thus do not clear child attachments.
 535
 536                 clearParentAttachment();
 537         }
 538
 539         if (m_meshnode) {
 540                 m_meshnode->remove();
 541                 m_meshnode->drop();
 542                 m_meshnode = nullptr;
 543         } else if (m_animated_meshnode) {
 544                 m_animated_meshnode->remove();
 545                 m_animated_meshnode->drop();
 546                 m_animated_meshnode = nullptr;
 547         } else if (m_wield_meshnode) {
 548                 m_wield_meshnode->remove();
 549                 m_wield_meshnode->drop();
 550                 m_wield_meshnode = nullptr;
 551         } else if (m_spritenode) {
 552                 m_spritenode->remove();
 553                 m_spritenode->drop();
 554                 m_spritenode = nullptr;
 555         }
 556
 557         if (m_matrixnode) {
 558                 m_matrixnode->remove();
 559                 m_matrixnode->drop();
 560                 m_matrixnode = nullptr;
 561         }
 562
 563         if (m_nametag) {
 564                 m_client->getCamera()->removeNametag(m_nametag);
 565                 m_nametag = nullptr;
 566         }
 567 }
 568
 569 void GenericCAO::addToScene(ITextureSource *tsrc)
 570 {
 571         m_smgr = RenderingEngine::get_scene_manager();
 572
 573         if (getSceneNode() != NULL) {
 574                 return;
 575         }
 576
 577         m_visuals_expired = false;
 578
 579         if (!m_prop.is_visible) {
 580                 return;
 581         }
 582
 583         if (m_enable_shaders) {
 584                 IShaderSource *shader_source = m_client->getShaderSource();
 585                 u32 shader_id = shader_source->getShader(
 586                                 "object_shader",
 587                                 TILE_MATERIAL_BASIC,
 588                                 NDT_NORMAL);
 589                 m_material_type = shader_source->getShaderInfo(shader_id).material;
 590         } else {
 591                 m_material_type = (m_prop.use_texture_alpha) ?
 592                         video::EMT_TRANSPARENT_ALPHA_CHANNEL : video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 593         }
 594
 595         auto grabMatrixNode = [this] {
 596                 infostream << "GenericCAO::addToScene(): " << m_prop.visual << std::endl;
 597                 m_matrixnode = RenderingEngine::get_scene_manager()->
 598                                 addDummyTransformationSceneNode();
 599                 m_matrixnode->grab();
 600         };
 601
 602         auto setSceneNodeMaterial = [this] (scene::ISceneNode *node) {
 603                 node->setMaterialFlag(video::EMF_LIGHTING, false);
 604                 node->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 605                 node->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 606                 node->setMaterialType(m_material_type);
 607
 608                 if (m_enable_shaders) {
 609                         node->setMaterialFlag(video::EMF_GOURAUD_SHADING, false);
 610                         node->setMaterialFlag(video::EMF_NORMALIZE_NORMALS, true);
 611                 }
 612         };
 613
 614         if (m_prop.visual == "sprite") {
 615                 grabMatrixNode();
 616                 m_spritenode = RenderingEngine::get_scene_manager()->addBillboardSceneNode(
 617                                 m_matrixnode, v2f(1, 1), v3f(0,0,0), -1);
 618                 m_spritenode->grab();
 619                 m_spritenode->setMaterialTexture(0,
 620                                 tsrc->getTextureForMesh("unknown_node.png"));
 621
 622                 setSceneNodeMaterial(m_spritenode);
 623
 624                 m_spritenode->setSize(v2f(m_prop.visual_size.X,
 625                                 m_prop.visual_size.Y) * BS);
 626                 {
 627                         const float txs = 1.0 / 1;
 628                         const float tys = 1.0 / 1;
 629                         setBillboardTextureMatrix(m_spritenode,
 630                                         txs, tys, 0, 0);
 631                 }
 632         } else if (m_prop.visual == "upright_sprite") {
 633                 grabMatrixNode();
 634                 scene::SMesh *mesh = new scene::SMesh();
 635                 double dx = BS * m_prop.visual_size.X / 2;
 636                 double dy = BS * m_prop.visual_size.Y / 2;
 637                 video::SColor c(0xFFFFFFFF);
 638
 639                 { // Front
 640                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 641                         video::S3DVertex vertices[4] = {
 642                                 video::S3DVertex(-dx, -dy, 0, 0,0,1, c, 1,1),
 643                                 video::S3DVertex( dx, -dy, 0, 0,0,1, c, 0,1),
 644                                 video::S3DVertex( dx,  dy, 0, 0,0,1, c, 0,0),
 645                                 video::S3DVertex(-dx,  dy, 0, 0,0,1, c, 1,0),
 646                         };
 647                         if (m_is_player) {
 648                                 // Move minimal Y position to 0 (feet position)
 649                                 for (video::S3DVertex &vertex : vertices)
 650                                         vertex.Pos.Y += dy;
 651                         }
 652                         u16 indices[] = {0,1,2,2,3,0};
 653                         buf->append(vertices, 4, indices, 6);
 654                         // Set material
 655                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 656                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 657                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 658                         buf->getMaterial().MaterialType = m_material_type;
 659
 660                         if (m_enable_shaders) {
 661                                 buf->getMaterial().EmissiveColor = c;
 662                                 buf->getMaterial().setFlag(video::EMF_GOURAUD_SHADING, false);
 663                                 buf->getMaterial().setFlag(video::EMF_NORMALIZE_NORMALS, true);
 664                         }
 665
 666                         // Add to mesh
 667                         mesh->addMeshBuffer(buf);
 668                         buf->drop();
 669                 }
 670                 { // Back
 671                         scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 672                         video::S3DVertex vertices[4] = {
 673                                 video::S3DVertex( dx,-dy, 0, 0,0,-1, c, 1,1),
 674                                 video::S3DVertex(-dx,-dy, 0, 0,0,-1, c, 0,1),
 675                                 video::S3DVertex(-dx, dy, 0, 0,0,-1, c, 0,0),
 676                                 video::S3DVertex( dx, dy, 0, 0,0,-1, c, 1,0),
 677                         };
 678                         if (m_is_player) {
 679                                 // Move minimal Y position to 0 (feet position)
 680                                 for (video::S3DVertex &vertex : vertices)
 681                                         vertex.Pos.Y += dy;
 682                         }
 683                         u16 indices[] = {0,1,2,2,3,0};
 684                         buf->append(vertices, 4, indices, 6);
 685                         // Set material
 686                         buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 687                         buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 688                         buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 689                         buf->getMaterial().MaterialType = m_material_type;
 690
 691                         if (m_enable_shaders) {
 692                                 buf->getMaterial().EmissiveColor = c;
 693                                 buf->getMaterial().setFlag(video::EMF_GOURAUD_SHADING, false);
 694                                 buf->getMaterial().setFlag(video::EMF_NORMALIZE_NORMALS, true);
 695                         }
 696
 697                         // Add to mesh
 698                         mesh->addMeshBuffer(buf);
 699                         buf->drop();
 700                 }
 701                 m_meshnode = RenderingEngine::get_scene_manager()->
 702                         addMeshSceneNode(mesh, m_matrixnode);
 703                 m_meshnode->grab();
 704                 mesh->drop();
 705                 // Set it to use the materials of the meshbuffers directly.
 706                 // This is needed for changing the texture in the future
 707                 m_meshnode->setReadOnlyMaterials(true);
 708         } else if (m_prop.visual == "cube") {
 709                 grabMatrixNode();
 710                 scene::IMesh *mesh = createCubeMesh(v3f(BS,BS,BS));
 711                 m_meshnode = RenderingEngine::get_scene_manager()->
 712                         addMeshSceneNode(mesh, m_matrixnode);
 713                 m_meshnode->grab();
 714                 mesh->drop();
 715
 716                 m_meshnode->setScale(m_prop.visual_size);
 717
 718                 setSceneNodeMaterial(m_meshnode);
 719         } else if (m_prop.visual == "mesh") {
 720                 grabMatrixNode();
 721                 scene::IAnimatedMesh *mesh = m_client->getMesh(m_prop.mesh, true);
 722                 if (mesh) {
 723                         m_animated_meshnode = RenderingEngine::get_scene_manager()->
 724                                 addAnimatedMeshSceneNode(mesh, m_matrixnode);
 725                         m_animated_meshnode->grab();
 726                         mesh->drop(); // The scene node took hold of it
 727                         m_animated_meshnode->animateJoints(); // Needed for some animations
 728                         m_animated_meshnode->setScale(m_prop.visual_size);
 729
 730                         // set vertex colors to ensure alpha is set
 731                         setMeshColor(m_animated_meshnode->getMesh(), video::SColor(0xFFFFFFFF));
 732
 733                         setAnimatedMeshColor(m_animated_meshnode, video::SColor(0xFFFFFFFF));
 734
 735                         setSceneNodeMaterial(m_animated_meshnode);
 736
 737                         m_animated_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
 738                                 m_prop.backface_culling);
 739                 } else
 740                         errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;
 741         } else if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 742                 grabMatrixNode();
 743                 ItemStack item;
 744                 if (m_prop.wield_item.empty()) {
 745                         // Old format, only textures are specified.
 746                         infostream << "textures: " << m_prop.textures.size() << std::endl;
 747                         if (!m_prop.textures.empty()) {
 748                                 infostream << "textures[0]: " << m_prop.textures[0]
 749                                         << std::endl;
 750                                 IItemDefManager *idef = m_client->idef();
 751                                 item = ItemStack(m_prop.textures[0], 1, 0, idef);
 752                         }
 753                 } else {
 754                         infostream << "serialized form: " << m_prop.wield_item << std::endl;
 755                         item.deSerialize(m_prop.wield_item, m_client->idef());
 756                 }
 757                 m_wield_meshnode = new WieldMeshSceneNode(
 758                         RenderingEngine::get_scene_manager(), -1);
 759                 m_wield_meshnode->setItem(item, m_client,
 760                         (m_prop.visual == "wielditem"));
 761
 762                 m_wield_meshnode->setScale(m_prop.visual_size / 2.0f);
 763                 m_wield_meshnode->setColor(video::SColor(0xFFFFFFFF));
 764         } else {
 765                 infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 766                                 <<"\" not supported"<<std::endl;
 767         }
 768
 769         /* don't update while punch texture modifier is active */
 770         if (m_reset_textures_timer < 0)
 771                 updateTextures(m_current_texture_modifier);
 772
 773         scene::ISceneNode *node = getSceneNode();
 774
 775         if (node && m_matrixnode)
 776                 node->setParent(m_matrixnode);
 777
 778         if (node && !m_prop.nametag.empty() && !m_is_local_player) {
 779                 // Add nametag
 780                 v3f pos;
 781                 pos.Y = m_prop.selectionbox.MaxEdge.Y + 0.3f;
 782                 m_nametag = m_client->getCamera()->addNametag(node,
 783                         m_prop.nametag, m_prop.nametag_color,
 784                         pos);
 785         }
 786
 787         updateNodePos();
 788         updateAnimation();
 789         updateBonePosition();
 790         updateAttachments();
 791         setNodeLight(m_last_light);
 792 }
 793
 794 void GenericCAO::updateLight(u8 light_at_pos)
 795 {
 796         // Don't update light of attached one
 797         if (getParent() != NULL) {
 798                 return;
 799         }
 800
 801         updateLightNoCheck(light_at_pos);
 802
 803         // Update light of all children
 804         for (u16 i : m_attachment_child_ids) {
 805                 ClientActiveObject *obj = m_env->getActiveObject(i);
 806                 if (obj) {
 807                         obj->updateLightNoCheck(light_at_pos);
 808                 }
 809         }
 810 }
 811
 812 void GenericCAO::updateLightNoCheck(u8 light_at_pos)
 813 {
 814         if (m_glow < 0)
 815                 return;
 816
 817         u8 li = decode_light(light_at_pos + m_glow);
 818
 819         if (li != m_last_light) {
 820                 m_last_light = li;
 821                 setNodeLight(li);
 822         }
 823 }
 824
 825 void GenericCAO::setNodeLight(u8 light)
 826 {
 827         video::SColor color(255, light, light, light);
 828
 829         if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 830                 // Since these types of visuals are using their own shader
 831                 // they should be handled separately
 832                 m_wield_meshnode->setColor(color);
 833         } else if (m_enable_shaders) {
 834                 scene::ISceneNode *node = getSceneNode();
 835
 836                 if (node == nullptr)
 837                         return;
 838
 839                 if (m_prop.visual == "upright_sprite") {
 840                         scene::IMesh *mesh = m_meshnode->getMesh();
 841                         for (u32 i = 0; i < mesh->getMeshBufferCount(); ++i) {
 842                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
 843                                 video::SMaterial &material = buf->getMaterial();
 844                                 material.EmissiveColor = color;
 845                         }
 846                 } else {
 847                         for (u32 i = 0; i < node->getMaterialCount(); ++i) {
 848                                 video::SMaterial &material = node->getMaterial(i);
 849                                 material.EmissiveColor = color;
 850                         }
 851                 }
 852         } else {
 853                 if (m_meshnode) {
 854                         setMeshColor(m_meshnode->getMesh(), color);
 855                 } else if (m_animated_meshnode) {
 856                         setAnimatedMeshColor(m_animated_meshnode, color);
 857                 } else if (m_spritenode) {
 858                         m_spritenode->setColor(color);
 859                 }
 860         }
 861 }
 862
 863 v3s16 GenericCAO::getLightPosition()
 864 {
 865         if (m_is_player)
 866                 return floatToInt(m_position + v3f(0, 0.5 * BS, 0), BS);
 867
 868         return floatToInt(m_position, BS);
 869 }
 870
 871 void GenericCAO::updateNodePos()
 872 {
 873         if (getParent() != NULL)
 874                 return;
 875
 876         scene::ISceneNode *node = getSceneNode();
 877
 878         if (node) {
 879                 v3s16 camera_offset = m_env->getCameraOffset();
 880                 v3f pos = pos_translator.val_current -
 881                                 intToFloat(camera_offset, BS);
 882                 getPosRotMatrix().setTranslation(pos);
 883                 if (node != m_spritenode) { // rotate if not a sprite
 884                         v3f rot = m_is_local_player ? -m_rotation : -rot_translator.val_current;
 885                         setPitchYawRoll(getPosRotMatrix(), rot);
 886                 }
 887         }
 888 }
 889
 890 void GenericCAO::step(float dtime, ClientEnvironment *env)
 891 {
 892         // Handle model animations and update positions instantly to prevent lags
 893         if (m_is_local_player) {
 894                 LocalPlayer *player = m_env->getLocalPlayer();
 895                 m_position = player->getPosition();
 896                 pos_translator.val_current = m_position;
 897                 m_rotation.Y = wrapDegrees_0_360(player->getYaw());
 898                 rot_translator.val_current = m_rotation;
 899
 900                 if (m_is_visible) {
 901                         int old_anim = player->last_animation;
 902                         float old_anim_speed = player->last_animation_speed;
 903                         m_velocity = v3f(0,0,0);
 904                         m_acceleration = v3f(0,0,0);
 905                         const PlayerControl &controls = player->getPlayerControl();
 906
 907                         bool walking = false;
 908                         if (controls.up || controls.down || controls.left || controls.right ||
 909                                         controls.forw_move_joystick_axis != 0.f ||
 910                                         controls.sidew_move_joystick_axis != 0.f)
 911                                 walking = true;
 912
 913                         f32 new_speed = player->local_animation_speed;
 914                         v2s32 new_anim = v2s32(0,0);
 915                         bool allow_update = false;
 916
 917                         // increase speed if using fast or flying fast
 918                         if((g_settings->getBool("fast_move") &&
 919                                         m_client->checkLocalPrivilege("fast")) &&
 920                                         (controls.aux1 ||
 921                                         (!player->touching_ground &&
 922                                         g_settings->getBool("free_move") &&
 923                                         m_client->checkLocalPrivilege("fly"))))
 924                                         new_speed *= 1.5;
 925                         // slowdown speed if sneeking
 926                         if (controls.sneak && walking)
 927                                 new_speed /= 2;
 928
 929                         if (walking && (controls.LMB || controls.RMB)) {
 930                                 new_anim = player->local_animations[3];
 931                                 player->last_animation = WD_ANIM;
 932                         } else if(walking) {
 933                                 new_anim = player->local_animations[1];
 934                                 player->last_animation = WALK_ANIM;
 935                         } else if(controls.LMB || controls.RMB) {
 936                                 new_anim = player->local_animations[2];
 937                                 player->last_animation = DIG_ANIM;
 938                         }
 939
 940                         // Apply animations if input detected and not attached
 941                         // or set idle animation
 942                         if ((new_anim.X + new_anim.Y) > 0 && !getParent()) {
 943                                 allow_update = true;
 944                                 m_animation_range = new_anim;
 945                                 m_animation_speed = new_speed;
 946                                 player->last_animation_speed = m_animation_speed;
 947                         } else {
 948                                 player->last_animation = NO_ANIM;
 949
 950                                 if (old_anim != NO_ANIM) {
 951                                         m_animation_range = player->local_animations[0];
 952                                         updateAnimation();
 953                                 }
 954                         }
 955
 956                         // Update local player animations
 957                         if ((player->last_animation != old_anim ||
 958                                 m_animation_speed != old_anim_speed) &&
 959                                 player->last_animation != NO_ANIM && allow_update)
 960                                         updateAnimation();
 961
 962                 }
 963         }
 964
 965         if (m_visuals_expired && m_smgr) {
 966                 m_visuals_expired = false;
 967
 968                 // Attachments, part 1: All attached objects must be unparented first,
 969                 // or Irrlicht causes a segmentation fault
 970                 for (u16 cao_id : m_attachment_child_ids) {
 971                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
 972                         if (obj) {
 973                                 scene::ISceneNode *child_node = obj->getSceneNode();
 974                                 // The node's parent is always an IDummyTraformationSceneNode,
 975                                 // so we need to reparent that one instead.
 976                                 if (child_node)
 977                                         child_node->getParent()->setParent(m_smgr->getRootSceneNode());
 978                         }
 979                 }
 980
 981                 removeFromScene(false);
 982                 addToScene(m_client->tsrc());
 983
 984                 // Attachments, part 2: Now that the parent has been refreshed, put its attachments back
 985                 for (u16 cao_id : m_attachment_child_ids) {
 986                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
 987                         if (obj)
 988                                 obj->updateAttachments();
 989                 }
 990         }
 991
 992         // Make sure m_is_visible is always applied
 993         scene::ISceneNode *node = getSceneNode();
 994         if (node)
 995                 node->setVisible(m_is_visible);
 996
 997         if(getParent() != NULL) // Attachments should be glued to their parent by Irrlicht
 998         {
 999                 // Set these for later
1000                 m_position = getPosition();
1001                 m_velocity = v3f(0,0,0);
1002                 m_acceleration = v3f(0,0,0);
1003                 pos_translator.val_current = m_position;
1004                 pos_translator.val_target = m_position;
1005         } else {
1006                 rot_translator.translate(dtime);
1007                 v3f lastpos = pos_translator.val_current;
1008
1009                 if(m_prop.physical)
1010                 {
1011                         aabb3f box = m_prop.collisionbox;
1012                         box.MinEdge *= BS;
1013                         box.MaxEdge *= BS;
1014                         collisionMoveResult moveresult;
1015                         f32 pos_max_d = BS*0.125; // Distance per iteration
1016                         v3f p_pos = m_position;
1017                         v3f p_velocity = m_velocity;
1018                         moveresult = collisionMoveSimple(env,env->getGameDef(),
1019                                         pos_max_d, box, m_prop.stepheight, dtime,
1020                                         &p_pos, &p_velocity, m_acceleration,
1021                                         this, m_prop.collideWithObjects);
1022                         // Apply results
1023                         m_position = p_pos;
1024                         m_velocity = p_velocity;
1025
1026                         bool is_end_position = moveresult.collides;
1027                         pos_translator.update(m_position, is_end_position, dtime);
1028                 } else {
1029                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
1030                         m_velocity += dtime * m_acceleration;
1031                         pos_translator.update(m_position, pos_translator.aim_is_end,
1032                                         pos_translator.anim_time);
1033                 }
1034                 pos_translator.translate(dtime);
1035                 updateNodePos();
1036
1037                 float moved = lastpos.getDistanceFrom(pos_translator.val_current);
1038                 m_step_distance_counter += moved;
1039                 if (m_step_distance_counter > 1.5f * BS) {
1040                         m_step_distance_counter = 0.0f;
1041                         if (!m_is_local_player && m_prop.makes_footstep_sound) {
1042                                 const NodeDefManager *ndef = m_client->ndef();
1043                                 v3s16 p = floatToInt(getPosition() +
1044                                         v3f(0.0f, (m_prop.collisionbox.MinEdge.Y - 0.5f) * BS, 0.0f), BS);
1045                                 MapNode n = m_env->getMap().getNode(p);
1046                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
1047                                 // Reduce footstep gain, as non-local-player footsteps are
1048                                 // somehow louder.
1049                                 spec.gain *= 0.6f;
1050                                 m_client->sound()->playSoundAt(spec, false, getPosition());
1051                         }
1052                 }
1053         }
1054
1055         m_anim_timer += dtime;
1056         if(m_anim_timer >= m_anim_framelength)
1057         {
1058                 m_anim_timer -= m_anim_framelength;
1059                 m_anim_frame++;
1060                 if(m_anim_frame >= m_anim_num_frames)
1061                         m_anim_frame = 0;
1062         }
1063
1064         updateTexturePos();
1065
1066         if(m_reset_textures_timer >= 0)
1067         {
1068                 m_reset_textures_timer -= dtime;
1069                 if(m_reset_textures_timer <= 0) {
1070                         m_reset_textures_timer = -1;
1071                         updateTextures(m_previous_texture_modifier);
1072                 }
1073         }
1074         if (!getParent() && std::fabs(m_prop.automatic_rotate) > 0.001) {
1075                 m_rotation.Y += dtime * m_prop.automatic_rotate * 180 / M_PI;
1076                 rot_translator.val_current = m_rotation;
1077                 updateNodePos();
1078         }
1079
1080         if (!getParent() && m_prop.automatic_face_movement_dir &&
1081                         (fabs(m_velocity.Z) > 0.001 || fabs(m_velocity.X) > 0.001)) {
1082                 float target_yaw = atan2(m_velocity.Z, m_velocity.X) * 180 / M_PI
1083                                 + m_prop.automatic_face_movement_dir_offset;
1084                 float max_rotation_per_sec =
1085                                 m_prop.automatic_face_movement_max_rotation_per_sec;
1086
1087                 if (max_rotation_per_sec > 0) {
1088                         wrappedApproachShortest(m_rotation.Y, target_yaw,
1089                                 dtime * max_rotation_per_sec, 360.f);
1090                 } else {
1091                         // Negative values of max_rotation_per_sec mean disabled.
1092                         m_rotation.Y = target_yaw;
1093                 }
1094
1095                 rot_translator.val_current = m_rotation;
1096                 updateNodePos();
1097         }
1098 }
1099
1100 void GenericCAO::updateTexturePos()
1101 {
1102         if(m_spritenode)
1103         {
1104                 scene::ICameraSceneNode* camera =
1105                                 m_spritenode->getSceneManager()->getActiveCamera();
1106                 if(!camera)
1107                         return;
1108                 v3f cam_to_entity = m_spritenode->getAbsolutePosition()
1109                                 - camera->getAbsolutePosition();
1110                 cam_to_entity.normalize();
1111
1112                 int row = m_tx_basepos.Y;
1113                 int col = m_tx_basepos.X;
1114
1115                 if (m_tx_select_horiz_by_yawpitch) {
1116                         if (cam_to_entity.Y > 0.75)
1117                                 col += 5;
1118                         else if (cam_to_entity.Y < -0.75)
1119                                 col += 4;
1120                         else {
1121                                 float mob_dir =
1122                                                 atan2(cam_to_entity.Z, cam_to_entity.X) / M_PI * 180.;
1123                                 float dir = mob_dir - m_rotation.Y;
1124                                 dir = wrapDegrees_180(dir);
1125                                 if (std::fabs(wrapDegrees_180(dir - 0)) <= 45.1f)
1126                                         col += 2;
1127                                 else if(std::fabs(wrapDegrees_180(dir - 90)) <= 45.1f)
1128                                         col += 3;
1129                                 else if(std::fabs(wrapDegrees_180(dir - 180)) <= 45.1f)
1130                                         col += 0;
1131                                 else if(std::fabs(wrapDegrees_180(dir + 90)) <= 45.1f)
1132                                         col += 1;
1133                                 else
1134                                         col += 4;
1135                         }
1136                 }
1137
1138                 // Animation goes downwards
1139                 row += m_anim_frame;
1140
1141                 float txs = m_tx_size.X;
1142                 float tys = m_tx_size.Y;
1143                 setBillboardTextureMatrix(m_spritenode, txs, tys, col, row);
1144         }
1145 }
1146
1147 // Do not pass by reference, see header.
1148 void GenericCAO::updateTextures(std::string mod)
1149 {
1150         ITextureSource *tsrc = m_client->tsrc();
1151
1152         bool use_trilinear_filter = g_settings->getBool("trilinear_filter");
1153         bool use_bilinear_filter = g_settings->getBool("bilinear_filter");
1154         bool use_anisotropic_filter = g_settings->getBool("anisotropic_filter");
1155
1156         m_previous_texture_modifier = m_current_texture_modifier;
1157         m_current_texture_modifier = mod;
1158         m_glow = m_prop.glow;
1159
1160         if (m_spritenode) {
1161                 if (m_prop.visual == "sprite") {
1162                         std::string texturestring = "unknown_node.png";
1163                         if (!m_prop.textures.empty())
1164                                 texturestring = m_prop.textures[0];
1165                         texturestring += mod;
1166                         m_spritenode->getMaterial(0).MaterialType = m_material_type;
1167                         m_spritenode->getMaterial(0).MaterialTypeParam = 0.5f;
1168                         m_spritenode->setMaterialTexture(0,
1169                                         tsrc->getTextureForMesh(texturestring));
1170
1171                         // This allows setting per-material colors. However, until a real lighting
1172                         // system is added, the code below will have no effect. Once MineTest
1173                         // has directional lighting, it should work automatically.
1174                         if (!m_prop.colors.empty()) {
1175                                 m_spritenode->getMaterial(0).AmbientColor = m_prop.colors[0];
1176                                 m_spritenode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1177                                 m_spritenode->getMaterial(0).SpecularColor = m_prop.colors[0];
1178                         }
1179
1180                         m_spritenode->getMaterial(0).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1181                         m_spritenode->getMaterial(0).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1182                         m_spritenode->getMaterial(0).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1183                 }
1184         }
1185
1186         if (m_animated_meshnode) {
1187                 if (m_prop.visual == "mesh") {
1188                         for (u32 i = 0; i < m_prop.textures.size() &&
1189                                         i < m_animated_meshnode->getMaterialCount(); ++i) {
1190                                 std::string texturestring = m_prop.textures[i];
1191                                 if (texturestring.empty())
1192                                         continue; // Empty texture string means don't modify that material
1193                                 texturestring += mod;
1194                                 video::ITexture* texture = tsrc->getTextureForMesh(texturestring);
1195                                 if (!texture) {
1196                                         errorstream<<"GenericCAO::updateTextures(): Could not load texture "<<texturestring<<std::endl;
1197                                         continue;
1198                                 }
1199
1200                                 // Set material flags and texture
1201                                 video::SMaterial& material = m_animated_meshnode->getMaterial(i);
1202                                 material.MaterialType = m_material_type;
1203                                 material.MaterialTypeParam = 0.5f;
1204                                 material.TextureLayer[0].Texture = texture;
1205                                 material.setFlag(video::EMF_LIGHTING, true);
1206                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1207                                 material.setFlag(video::EMF_BACK_FACE_CULLING, m_prop.backface_culling);
1208
1209                                 // don't filter low-res textures, makes them look blurry
1210                                 // player models have a res of 64
1211                                 const core::dimension2d<u32> &size = texture->getOriginalSize();
1212                                 const u32 res = std::min(size.Height, size.Width);
1213                                 use_trilinear_filter &= res > 64;
1214                                 use_bilinear_filter &= res > 64;
1215
1216                                 m_animated_meshnode->getMaterial(i)
1217                                                 .setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1218                                 m_animated_meshnode->getMaterial(i)
1219                                                 .setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1220                                 m_animated_meshnode->getMaterial(i)
1221                                                 .setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1222                         }
1223                         for (u32 i = 0; i < m_prop.colors.size() &&
1224                         i < m_animated_meshnode->getMaterialCount(); ++i)
1225                         {
1226                                 // This allows setting per-material colors. However, until a real lighting
1227                                 // system is added, the code below will have no effect. Once MineTest
1228                                 // has directional lighting, it should work automatically.
1229                                 m_animated_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1230                                 m_animated_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1231                                 m_animated_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1232                         }
1233                 }
1234         }
1235         if(m_meshnode)
1236         {
1237                 if(m_prop.visual == "cube")
1238                 {
1239                         for (u32 i = 0; i < 6; ++i)
1240                         {
1241                                 std::string texturestring = "unknown_node.png";
1242                                 if(m_prop.textures.size() > i)
1243                                         texturestring = m_prop.textures[i];
1244                                 texturestring += mod;
1245
1246
1247                                 // Set material flags and texture
1248                                 video::SMaterial& material = m_meshnode->getMaterial(i);
1249                                 material.MaterialType = m_material_type;
1250                                 material.MaterialTypeParam = 0.5f;
1251                                 material.setFlag(video::EMF_LIGHTING, false);
1252                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1253                                 material.setTexture(0,
1254                                                 tsrc->getTextureForMesh(texturestring));
1255                                 material.getTextureMatrix(0).makeIdentity();
1256
1257                                 // This allows setting per-material colors. However, until a real lighting
1258                                 // system is added, the code below will have no effect. Once MineTest
1259                                 // has directional lighting, it should work automatically.
1260                                 if(m_prop.colors.size() > i)
1261                                 {
1262                                         m_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1263                                         m_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1264                                         m_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1265                                 }
1266
1267                                 m_meshnode->getMaterial(i).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1268                                 m_meshnode->getMaterial(i).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1269                                 m_meshnode->getMaterial(i).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1270                         }
1271                 } else if (m_prop.visual == "upright_sprite") {
1272                         scene::IMesh *mesh = m_meshnode->getMesh();
1273                         {
1274                                 std::string tname = "unknown_object.png";
1275                                 if (!m_prop.textures.empty())
1276                                         tname = m_prop.textures[0];
1277                                 tname += mod;
1278                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1279                                 buf->getMaterial().setTexture(0,
1280                                                 tsrc->getTextureForMesh(tname));
1281
1282                                 // This allows setting per-material colors. However, until a real lighting
1283                                 // system is added, the code below will have no effect. Once MineTest
1284                                 // has directional lighting, it should work automatically.
1285                                 if(!m_prop.colors.empty()) {
1286                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1287                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1288                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1289                                 }
1290
1291                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1292                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1293                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1294                         }
1295                         {
1296                                 std::string tname = "unknown_object.png";
1297                                 if (m_prop.textures.size() >= 2)
1298                                         tname = m_prop.textures[1];
1299                                 else if (!m_prop.textures.empty())
1300                                         tname = m_prop.textures[0];
1301                                 tname += mod;
1302                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1303                                 buf->getMaterial().setTexture(0,
1304                                                 tsrc->getTextureForMesh(tname));
1305
1306                                 // This allows setting per-material colors. However, until a real lighting
1307                                 // system is added, the code below will have no effect. Once MineTest
1308                                 // has directional lighting, it should work automatically.
1309                                 if (m_prop.colors.size() >= 2) {
1310                                         buf->getMaterial().AmbientColor = m_prop.colors[1];
1311                                         buf->getMaterial().DiffuseColor = m_prop.colors[1];
1312                                         buf->getMaterial().SpecularColor = m_prop.colors[1];
1313                                 } else if (!m_prop.colors.empty()) {
1314                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1315                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1316                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1317                                 }
1318
1319                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1320                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1321                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1322                         }
1323                         // Set mesh color (only if lighting is disabled)
1324                         if (!m_prop.colors.empty() && m_glow < 0)
1325                                 setMeshColor(mesh, m_prop.colors[0]);
1326                 }
1327         }
1328 }
1329
1330 void GenericCAO::updateAnimation()
1331 {
1332         if (!m_animated_meshnode)
1333                 return;
1334
1335         if (m_animated_meshnode->getStartFrame() != m_animation_range.X ||
1336                 m_animated_meshnode->getEndFrame() != m_animation_range.Y)
1337                         m_animated_meshnode->setFrameLoop(m_animation_range.X, m_animation_range.Y);
1338         if (m_animated_meshnode->getAnimationSpeed() != m_animation_speed)
1339                 m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1340         m_animated_meshnode->setTransitionTime(m_animation_blend);
1341 // Requires Irrlicht 1.8 or greater
1342 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR > 1
1343         if (m_animated_meshnode->getLoopMode() != m_animation_loop)
1344                 m_animated_meshnode->setLoopMode(m_animation_loop);
1345 #endif
1346 }
1347
1348 void GenericCAO::updateAnimationSpeed()
1349 {
1350         if (!m_animated_meshnode)
1351                 return;
1352
1353         m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1354 }
1355
1356 void GenericCAO::updateBonePosition()
1357 {
1358         if (m_bone_position.empty() || !m_animated_meshnode)
1359                 return;
1360
1361         m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
1362         for(std::unordered_map<std::string, core::vector2d<v3f>>::const_iterator
1363                         ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii) {
1364                 std::string bone_name = (*ii).first;
1365                 v3f bone_pos = (*ii).second.X;
1366                 v3f bone_rot = (*ii).second.Y;
1367                 irr::scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
1368                 if(bone)
1369                 {
1370                         bone->setPosition(bone_pos);
1371                         bone->setRotation(bone_rot);
1372                 }
1373         }
1374 }
1375
1376 void GenericCAO::updateAttachments()
1377 {
1378         ClientActiveObject *parent = getParent();
1379
1380         m_attached_to_local = parent && parent->isLocalPlayer();
1381
1382         /*
1383         Following cases exist:
1384                 m_attachment_parent_id == 0 && !parent
1385                         This object is not attached
1386                 m_attachment_parent_id != 0 && parent
1387                         This object is attached
1388                 m_attachment_parent_id != 0 && !parent
1389                         This object will be attached as soon the parent is known
1390                 m_attachment_parent_id == 0 && parent
1391                         Impossible case
1392         */
1393
1394         if (!parent) { // Detach or don't attach
1395                 if (m_matrixnode) {
1396                         v3f old_pos = getPosition();
1397
1398                         m_matrixnode->setParent(m_smgr->getRootSceneNode());
1399                         getPosRotMatrix().setTranslation(old_pos);
1400                         m_matrixnode->updateAbsolutePosition();
1401                 }
1402         }
1403         else // Attach
1404         {
1405                 scene::ISceneNode *parent_node = parent->getSceneNode();
1406                 scene::IAnimatedMeshSceneNode *parent_animated_mesh_node =
1407                                 parent->getAnimatedMeshSceneNode();
1408                 if (parent_animated_mesh_node && !m_attachment_bone.empty()) {
1409                         parent_node = parent_animated_mesh_node->getJointNode(m_attachment_bone.c_str());
1410                 }
1411
1412                 if (m_matrixnode && parent_node) {
1413                         m_matrixnode->setParent(parent_node);
1414                         getPosRotMatrix().setTranslation(m_attachment_position);
1415                         //setPitchYawRoll(getPosRotMatrix(), m_attachment_rotation);
1416                         // use Irrlicht eulers instead
1417                         getPosRotMatrix().setRotationDegrees(m_attachment_rotation);
1418                         m_matrixnode->updateAbsolutePosition();
1419                 }
1420         }
1421 }
1422
1423 void GenericCAO::processMessage(const std::string &data)
1424 {
1425         //infostream<<"GenericCAO: Got message"<<std::endl;
1426         std::istringstream is(data, std::ios::binary);
1427         // command
1428         u8 cmd = readU8(is);
1429         if (cmd == GENERIC_CMD_SET_PROPERTIES) {
1430                 m_prop = gob_read_set_properties(is);
1431
1432                 m_selection_box = m_prop.selectionbox;
1433                 m_selection_box.MinEdge *= BS;
1434                 m_selection_box.MaxEdge *= BS;
1435
1436                 m_tx_size.X = 1.0 / m_prop.spritediv.X;
1437                 m_tx_size.Y = 1.0 / m_prop.spritediv.Y;
1438
1439                 if(!m_initial_tx_basepos_set){
1440                         m_initial_tx_basepos_set = true;
1441                         m_tx_basepos = m_prop.initial_sprite_basepos;
1442                 }
1443                 if (m_is_local_player) {
1444                         LocalPlayer *player = m_env->getLocalPlayer();
1445                         player->makes_footstep_sound = m_prop.makes_footstep_sound;
1446                         aabb3f collision_box = m_prop.collisionbox;
1447                         collision_box.MinEdge *= BS;
1448                         collision_box.MaxEdge *= BS;
1449                         player->setCollisionbox(collision_box);
1450                         player->setEyeHeight(m_prop.eye_height);
1451                         player->setZoomFOV(m_prop.zoom_fov);
1452                 }
1453
1454                 if ((m_is_player && !m_is_local_player) && m_prop.nametag.empty())
1455                         m_prop.nametag = m_name;
1456
1457                 expireVisuals();
1458         } else if (cmd == GENERIC_CMD_UPDATE_POSITION) {
1459                 // Not sent by the server if this object is an attachment.
1460                 // We might however get here if the server notices the object being detached before the client.
1461                 m_position = readV3F32(is);
1462                 m_velocity = readV3F32(is);
1463                 m_acceleration = readV3F32(is);
1464
1465                 if (std::fabs(m_prop.automatic_rotate) < 0.001f)
1466                         m_rotation = readV3F32(is);
1467                 else
1468                         readV3F32(is);
1469
1470                 m_rotation = wrapDegrees_0_360_v3f(m_rotation);
1471                 bool do_interpolate = readU8(is);
1472                 bool is_end_position = readU8(is);
1473                 float update_interval = readF32(is);
1474
1475                 // Place us a bit higher if we're physical, to not sink into
1476                 // the ground due to sucky collision detection...
1477                 if(m_prop.physical)
1478                         m_position += v3f(0,0.002,0);
1479
1480                 if(getParent() != NULL) // Just in case
1481                         return;
1482
1483                 if(do_interpolate)
1484                 {
1485                         if(!m_prop.physical)
1486                                 pos_translator.update(m_position, is_end_position, update_interval);
1487                 } else {
1488                         pos_translator.init(m_position);
1489                 }
1490                 rot_translator.update(m_rotation, false, update_interval);
1491                 updateNodePos();
1492         } else if (cmd == GENERIC_CMD_SET_TEXTURE_MOD) {
1493                 std::string mod = deSerializeString(is);
1494
1495                 // immediatly reset a engine issued texture modifier if a mod sends a different one
1496                 if (m_reset_textures_timer > 0) {
1497                         m_reset_textures_timer = -1;
1498                         updateTextures(m_previous_texture_modifier);
1499                 }
1500                 updateTextures(mod);
1501         } else if (cmd == GENERIC_CMD_SET_SPRITE) {
1502                 v2s16 p = readV2S16(is);
1503                 int num_frames = readU16(is);
1504                 float framelength = readF32(is);
1505                 bool select_horiz_by_yawpitch = readU8(is);
1506
1507                 m_tx_basepos = p;
1508                 m_anim_num_frames = num_frames;
1509                 m_anim_framelength = framelength;
1510                 m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1511
1512                 updateTexturePos();
1513         } else if (cmd == GENERIC_CMD_SET_PHYSICS_OVERRIDE) {
1514                 float override_speed = readF32(is);
1515                 float override_jump = readF32(is);
1516                 float override_gravity = readF32(is);
1517                 // these are sent inverted so we get true when the server sends nothing
1518                 bool sneak = !readU8(is);
1519                 bool sneak_glitch = !readU8(is);
1520                 bool new_move = !readU8(is);
1521
1522
1523                 if(m_is_local_player)
1524                 {
1525                         LocalPlayer *player = m_env->getLocalPlayer();
1526                         player->physics_override_speed = override_speed;
1527                         player->physics_override_jump = override_jump;
1528                         player->physics_override_gravity = override_gravity;
1529                         player->physics_override_sneak = sneak;
1530                         player->physics_override_sneak_glitch = sneak_glitch;
1531                         player->physics_override_new_move = new_move;
1532                 }
1533         } else if (cmd == GENERIC_CMD_SET_ANIMATION) {
1534                 // TODO: change frames send as v2s32 value
1535                 v2f range = readV2F32(is);
1536                 if (!m_is_local_player) {
1537                         m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1538                         m_animation_speed = readF32(is);
1539                         m_animation_blend = readF32(is);
1540                         // these are sent inverted so we get true when the server sends nothing
1541                         m_animation_loop = !readU8(is);
1542                         updateAnimation();
1543                 } else {
1544                         LocalPlayer *player = m_env->getLocalPlayer();
1545                         if(player->last_animation == NO_ANIM)
1546                         {
1547                                 m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1548                                 m_animation_speed = readF32(is);
1549                                 m_animation_blend = readF32(is);
1550                                 // these are sent inverted so we get true when the server sends nothing
1551                                 m_animation_loop = !readU8(is);
1552                         }
1553                         // update animation only if local animations present
1554                         // and received animation is unknown (except idle animation)
1555                         bool is_known = false;
1556                         for (int i = 1;i<4;i++)
1557                         {
1558                                 if(m_animation_range.Y == player->local_animations[i].Y)
1559                                         is_known = true;
1560                         }
1561                         if(!is_known ||
1562                                         (player->local_animations[1].Y + player->local_animations[2].Y < 1))
1563                         {
1564                                         updateAnimation();
1565                         }
1566                 }
1567         } else if (cmd == GENERIC_CMD_SET_ANIMATION_SPEED) {
1568                 m_animation_speed = readF32(is);
1569                 updateAnimationSpeed();
1570         } else if (cmd == GENERIC_CMD_SET_BONE_POSITION) {
1571                 std::string bone = deSerializeString(is);
1572                 v3f position = readV3F32(is);
1573                 v3f rotation = readV3F32(is);
1574                 m_bone_position[bone] = core::vector2d<v3f>(position, rotation);
1575
1576                 updateBonePosition();
1577         } else if (cmd == GENERIC_CMD_ATTACH_TO) {
1578                 u16 parent_id = readS16(is);
1579                 std::string bone = deSerializeString(is);
1580                 v3f position = readV3F32(is);
1581                 v3f rotation = readV3F32(is);
1582
1583                 setAttachment(parent_id, bone, position, rotation);
1584
1585                 // localplayer itself can't be attached to localplayer
1586                 if (!m_is_local_player)
1587                         m_is_visible = !m_attached_to_local;
1588         } else if (cmd == GENERIC_CMD_PUNCHED) {
1589                 u16 result_hp = readU16(is);
1590
1591                 // Use this instead of the send damage to not interfere with prediction
1592                 s32 damage = (s32)m_hp - (s32)result_hp;
1593
1594                 m_hp = result_hp;
1595
1596                 if (m_is_local_player)
1597                         m_env->getLocalPlayer()->hp = m_hp;
1598
1599                 if (damage > 0)
1600                 {
1601                         if (m_hp == 0)
1602                         {
1603                                 // TODO: Execute defined fast response
1604                                 // As there is no definition, make a smoke puff
1605                                 ClientSimpleObject *simple = createSmokePuff(
1606                                                 m_smgr, m_env, m_position,
1607                                                 v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1608                                 m_env->addSimpleObject(simple);
1609                         } else if (m_reset_textures_timer < 0) {
1610                                 // TODO: Execute defined fast response
1611                                 // Flashing shall suffice as there is no definition
1612                                 m_reset_textures_timer = 0.05;
1613                                 if(damage >= 2)
1614                                         m_reset_textures_timer += 0.05 * damage;
1615                                 updateTextures(m_current_texture_modifier + "^[brighten");
1616                         }
1617                 }
1618
1619                 if (m_hp == 0) {
1620                         // Same as 'Server::DiePlayer'
1621                         clearParentAttachment();
1622                         // Same as 'ObjectRef::l_remove'
1623                         if (!m_is_player)
1624                                 clearChildAttachments();
1625                 }
1626         } else if (cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS) {
1627                 m_armor_groups.clear();
1628                 int armor_groups_size = readU16(is);
1629                 for(int i=0; i<armor_groups_size; i++)
1630                 {
1631                         std::string name = deSerializeString(is);
1632                         int rating = readS16(is);
1633                         m_armor_groups[name] = rating;
1634                 }
1635         } else if (cmd == GENERIC_CMD_UPDATE_NAMETAG_ATTRIBUTES) {
1636                 // Deprecated, for backwards compatibility only.
1637                 readU8(is); // version
1638                 m_prop.nametag_color = readARGB8(is);
1639                 if (m_nametag != NULL) {
1640                         m_nametag->nametag_color = m_prop.nametag_color;
1641                         v3f pos;
1642                         pos.Y = m_prop.collisionbox.MaxEdge.Y + 0.3f;
1643                         m_nametag->nametag_pos = pos;
1644                 }
1645         } else if (cmd == GENERIC_CMD_SPAWN_INFANT) {
1646                 u16 child_id = readU16(is);
1647                 u8 type = readU8(is); // maybe this will be useful later
1648                 (void)type;
1649
1650                 addAttachmentChild(child_id);
1651         } else {
1652                 warningstream << FUNCTION_NAME
1653                         << ": unknown command or outdated client \""
1654                         << +cmd << "\"" << std::endl;
1655         }
1656 }
1657
1658 /* \pre punchitem != NULL
1659  */
1660 bool GenericCAO::directReportPunch(v3f dir, const ItemStack *punchitem,
1661                 float time_from_last_punch)
1662 {
1663         assert(punchitem);      // pre-condition
1664         const ToolCapabilities *toolcap =
1665                         &punchitem->getToolCapabilities(m_client->idef());
1666         PunchDamageResult result = getPunchDamage(
1667                         m_armor_groups,
1668                         toolcap,
1669                         punchitem,
1670                         time_from_last_punch);
1671
1672         if(result.did_punch && result.damage != 0)
1673         {
1674                 if(result.damage < m_hp)
1675                 {
1676                         m_hp -= result.damage;
1677                 } else {
1678                         m_hp = 0;
1679                         // TODO: Execute defined fast response
1680                         // As there is no definition, make a smoke puff
1681                         ClientSimpleObject *simple = createSmokePuff(
1682                                         m_smgr, m_env, m_position,
1683                                         v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1684                         m_env->addSimpleObject(simple);
1685                 }
1686                 // TODO: Execute defined fast response
1687                 // Flashing shall suffice as there is no definition
1688                 if (m_reset_textures_timer < 0) {
1689                         m_reset_textures_timer = 0.05;
1690                         if (result.damage >= 2)
1691                                 m_reset_textures_timer += 0.05 * result.damage;
1692                         updateTextures(m_current_texture_modifier + "^[brighten");
1693                 }
1694         }
1695
1696         return false;
1697 }
1698
1699 std::string GenericCAO::debugInfoText()
1700 {
1701         std::ostringstream os(std::ios::binary);
1702         os<<"GenericCAO hp="<<m_hp<<"\n";
1703         os<<"armor={";
1704         for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1705                         i != m_armor_groups.end(); ++i)
1706         {
1707                 os<<i->first<<"="<<i->second<<", ";
1708         }
1709         os<<"}";
1710         return os.str();
1711 }
1712
1713 // Prototype
1714 GenericCAO proto_GenericCAO(NULL, NULL);