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(u32 day_night_ratio);
 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(u32 day_night_ratio)
 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 "clientobject.h"
 308
 309 GenericCAO::GenericCAO(Client *client, ClientEnvironment *env):
 310                 ClientActiveObject(0, client, env)
 311 {
 312         if (client == NULL) {
 313                 ClientActiveObject::registerType(getType(), create);
 314         } else {
 315                 m_client = client;
 316         }
 317 }
 318
 319 bool GenericCAO::getCollisionBox(aabb3f *toset) const
 320 {
 321         if (m_prop.physical)
 322         {
 323                 //update collision box
 324                 toset->MinEdge = m_prop.collisionbox.MinEdge * BS;
 325                 toset->MaxEdge = m_prop.collisionbox.MaxEdge * BS;
 326
 327                 toset->MinEdge += m_position;
 328                 toset->MaxEdge += m_position;
 329
 330                 return true;
 331         }
 332
 333         return false;
 334 }
 335
 336 bool GenericCAO::collideWithObjects() const
 337 {
 338         return m_prop.collideWithObjects;
 339 }
 340
 341 void GenericCAO::initialize(const std::string &data)
 342 {
 343         infostream<<"GenericCAO: Got init data"<<std::endl;
 344         processInitData(data);
 345
 346         if (m_is_player) {
 347                 // Check if it's the current player
 348                 LocalPlayer *player = m_env->getLocalPlayer();
 349                 if (player && strcmp(player->getName(), m_name.c_str()) == 0) {
 350                         m_is_local_player = true;
 351                         m_is_visible = false;
 352                         player->setCAO(this);
 353                 }
 354         }
 355
 356         m_enable_shaders = g_settings->getBool("enable_shaders");
 357 }
 358
 359 void GenericCAO::processInitData(const std::string &data)
 360 {
 361         std::istringstream is(data, std::ios::binary);
 362         const u8 version = readU8(is);
 363
 364         if (version < 1) {
 365                 errorstream << "GenericCAO: Unsupported init data version"
 366                                 << std::endl;
 367                 return;
 368         }
 369
 370         // PROTOCOL_VERSION >= 37
 371         m_name = deSerializeString(is);
 372         m_is_player = readU8(is);
 373         m_id = readU16(is);
 374         m_position = readV3F32(is);
 375         m_rotation = readV3F32(is);
 376         m_hp = readU16(is);
 377
 378         const u8 num_messages = readU8(is);
 379
 380         for (int i = 0; i < num_messages; i++) {
 381                 std::string message = deSerializeLongString(is);
 382                 processMessage(message);
 383         }
 384
 385         m_rotation = wrapDegrees_0_360_v3f(m_rotation);
 386         pos_translator.init(m_position);
 387         rot_translator.init(m_rotation);
 388         updateNodePos();
 389 }
 390
 391 GenericCAO::~GenericCAO()
 392 {
 393         removeFromScene(true);
 394 }
 395
 396 bool GenericCAO::getSelectionBox(aabb3f *toset) const
 397 {
 398         if (!m_prop.is_visible || !m_is_visible || m_is_local_player
 399                         || !m_prop.pointable) {
 400                 return false;
 401         }
 402         *toset = m_selection_box;
 403         return true;
 404 }
 405
 406 const v3f GenericCAO::getPosition() const
 407 {
 408         if (!getParent())
 409                 return pos_translator.val_current;
 410
 411         // Calculate real position in world based on MatrixNode
 412         if (m_matrixnode) {
 413                 v3s16 camera_offset = m_env->getCameraOffset();
 414                 return m_matrixnode->getAbsolutePosition() +
 415                                 intToFloat(camera_offset, BS);
 416         }
 417
 418         return m_position;
 419 }
 420
 421 const bool GenericCAO::isImmortal()
 422 {
 423         return itemgroup_get(getGroups(), "immortal");
 424 }
 425
 426 scene::ISceneNode *GenericCAO::getSceneNode() const
 427 {
 428         if (m_meshnode) {
 429                 return m_meshnode;
 430         }
 431
 432         if (m_animated_meshnode) {
 433                 return m_animated_meshnode;
 434         }
 435
 436         if (m_wield_meshnode) {
 437                 return m_wield_meshnode;
 438         }
 439
 440         if (m_spritenode) {
 441                 return m_spritenode;
 442         }
 443         return NULL;
 444 }
 445
 446 scene::IAnimatedMeshSceneNode *GenericCAO::getAnimatedMeshSceneNode() const
 447 {
 448         return m_animated_meshnode;
 449 }
 450
 451 void GenericCAO::setChildrenVisible(bool toset)
 452 {
 453         for (u16 cao_id : m_attachment_child_ids) {
 454                 GenericCAO *obj = m_env->getGenericCAO(cao_id);
 455                 if (obj) {
 456                         obj->setVisible(toset);
 457                 }
 458         }
 459 }
 460
 461 void GenericCAO::setAttachment(int parent_id, const std::string &bone, v3f position, v3f rotation)
 462 {
 463         int old_parent = m_attachment_parent_id;
 464         m_attachment_parent_id = parent_id;
 465         m_attachment_bone = bone;
 466         m_attachment_position = position;
 467         m_attachment_rotation = rotation;
 468
 469         ClientActiveObject *parent = m_env->getActiveObject(parent_id);
 470
 471         if (parent_id != old_parent) {
 472                 if (auto *o = m_env->getActiveObject(old_parent))
 473                         o->removeAttachmentChild(m_id);
 474                 if (parent)
 475                         parent->addAttachmentChild(m_id);
 476         }
 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         infostream << "GenericCAO::addToScene(): " << m_prop.visual << std::endl;
 583
 584         if (m_enable_shaders) {
 585                 IShaderSource *shader_source = m_client->getShaderSource();
 586                 u32 shader_id = shader_source->getShader(
 587                                 "object_shader",
 588                                 (m_prop.use_texture_alpha) ? TILE_MATERIAL_ALPHA : TILE_MATERIAL_BASIC,
 589                                 NDT_NORMAL);
 590                 m_material_type = shader_source->getShaderInfo(shader_id).material;
 591         } else {
 592                 m_material_type = (m_prop.use_texture_alpha) ?
 593                         video::EMT_TRANSPARENT_ALPHA_CHANNEL : video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 594         }
 595
 596         auto grabMatrixNode = [this] {
 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                 m_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
 718                         m_prop.backface_culling);
 719
 720                 setSceneNodeMaterial(m_meshnode);
 721         } else if (m_prop.visual == "mesh") {
 722                 grabMatrixNode();
 723                 scene::IAnimatedMesh *mesh = m_client->getMesh(m_prop.mesh, true);
 724                 if (mesh) {
 725                         m_animated_meshnode = RenderingEngine::get_scene_manager()->
 726                                 addAnimatedMeshSceneNode(mesh, m_matrixnode);
 727                         m_animated_meshnode->grab();
 728                         mesh->drop(); // The scene node took hold of it
 729                         m_animated_meshnode->animateJoints(); // Needed for some animations
 730                         m_animated_meshnode->setScale(m_prop.visual_size);
 731
 732                         // set vertex colors to ensure alpha is set
 733                         setMeshColor(m_animated_meshnode->getMesh(), video::SColor(0xFFFFFFFF));
 734
 735                         setAnimatedMeshColor(m_animated_meshnode, video::SColor(0xFFFFFFFF));
 736
 737                         setSceneNodeMaterial(m_animated_meshnode);
 738
 739                         m_animated_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
 740                                 m_prop.backface_culling);
 741                 } else
 742                         errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;
 743         } else if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 744                 grabMatrixNode();
 745                 ItemStack item;
 746                 if (m_prop.wield_item.empty()) {
 747                         // Old format, only textures are specified.
 748                         infostream << "textures: " << m_prop.textures.size() << std::endl;
 749                         if (!m_prop.textures.empty()) {
 750                                 infostream << "textures[0]: " << m_prop.textures[0]
 751                                         << std::endl;
 752                                 IItemDefManager *idef = m_client->idef();
 753                                 item = ItemStack(m_prop.textures[0], 1, 0, idef);
 754                         }
 755                 } else {
 756                         infostream << "serialized form: " << m_prop.wield_item << std::endl;
 757                         item.deSerialize(m_prop.wield_item, m_client->idef());
 758                 }
 759                 m_wield_meshnode = new WieldMeshSceneNode(
 760                         RenderingEngine::get_scene_manager(), -1);
 761                 m_wield_meshnode->setItem(item, m_client,
 762                         (m_prop.visual == "wielditem"));
 763
 764                 m_wield_meshnode->setScale(m_prop.visual_size / 2.0f);
 765                 m_wield_meshnode->setColor(video::SColor(0xFFFFFFFF));
 766         } else {
 767                 infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 768                                 <<"\" not supported"<<std::endl;
 769         }
 770
 771         /* don't update while punch texture modifier is active */
 772         if (m_reset_textures_timer < 0)
 773                 updateTextures(m_current_texture_modifier);
 774
 775         scene::ISceneNode *node = getSceneNode();
 776
 777         if (node && m_matrixnode)
 778                 node->setParent(m_matrixnode);
 779
 780         updateNametag();
 781         updateNodePos();
 782         updateAnimation();
 783         updateBonePosition();
 784         updateAttachments();
 785         setNodeLight(m_last_light);
 786 }
 787
 788 void GenericCAO::updateLight(u32 day_night_ratio)
 789 {
 790         u8 light_at_pos = 0;
 791         bool pos_ok;
 792
 793         v3s16 p = getLightPosition();
 794         MapNode n = m_env->getMap().getNode(p, &pos_ok);
 795         if (pos_ok)
 796                 light_at_pos = n.getLightBlend(day_night_ratio, m_client->ndef());
 797         else
 798                 light_at_pos = blend_light(day_night_ratio, LIGHT_SUN, 0);
 799
 800         u8 light = decode_light(light_at_pos);
 801         if (light != m_last_light) {
 802                 m_last_light = light;
 803                 setNodeLight(light);
 804         }
 805 }
 806
 807 void GenericCAO::setNodeLight(u8 light)
 808 {
 809         video::SColor color(255, light, light, light);
 810
 811         if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 812                 if (m_wield_meshnode)
 813                         m_wield_meshnode->setNodeLightColor(color);
 814                 return;
 815         }
 816
 817         if (m_enable_shaders) {
 818                 if (m_prop.visual == "upright_sprite") {
 819                         if (!m_meshnode)
 820                                 return;
 821
 822                         scene::IMesh *mesh = m_meshnode->getMesh();
 823                         for (u32 i = 0; i < mesh->getMeshBufferCount(); ++i) {
 824                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
 825                                 buf->getMaterial().EmissiveColor = color;
 826                         }
 827                 } else {
 828                         scene::ISceneNode *node = getSceneNode();
 829                         if (!node)
 830                                 return;
 831
 832                         for (u32 i = 0; i < node->getMaterialCount(); ++i) {
 833                                 video::SMaterial &material = node->getMaterial(i);
 834                                 material.EmissiveColor = color;
 835                         }
 836                 }
 837         } else {
 838                 if (m_meshnode) {
 839                         setMeshColor(m_meshnode->getMesh(), color);
 840                 } else if (m_animated_meshnode) {
 841                         setAnimatedMeshColor(m_animated_meshnode, color);
 842                 } else if (m_spritenode) {
 843                         m_spritenode->setColor(color);
 844                 }
 845         }
 846 }
 847
 848 v3s16 GenericCAO::getLightPosition()
 849 {
 850         if (m_is_player)
 851                 return floatToInt(m_position + v3f(0, 0.5 * BS, 0), BS);
 852
 853         return floatToInt(m_position, BS);
 854 }
 855
 856 void GenericCAO::updateNametag()
 857 {
 858         if (m_is_local_player) // No nametag for local player
 859                 return;
 860
 861         if (m_prop.nametag.empty()) {
 862                 // Delete nametag
 863                 if (m_nametag) {
 864                         m_client->getCamera()->removeNametag(m_nametag);
 865                         m_nametag = nullptr;
 866                 }
 867                 return;
 868         }
 869
 870         scene::ISceneNode *node = getSceneNode();
 871         if (!node)
 872                 return;
 873
 874         v3f pos;
 875         pos.Y = m_prop.selectionbox.MaxEdge.Y + 0.3f;
 876         if (!m_nametag) {
 877                 // Add nametag
 878                 m_nametag = m_client->getCamera()->addNametag(node,
 879                         m_prop.nametag, m_prop.nametag_color, pos);
 880         } else {
 881                 // Update nametag
 882                 m_nametag->nametag_text = m_prop.nametag;
 883                 m_nametag->nametag_color = m_prop.nametag_color;
 884                 m_nametag->nametag_pos = pos;
 885         }
 886 }
 887
 888 void GenericCAO::updateNodePos()
 889 {
 890         if (getParent() != NULL)
 891                 return;
 892
 893         scene::ISceneNode *node = getSceneNode();
 894
 895         if (node) {
 896                 v3s16 camera_offset = m_env->getCameraOffset();
 897                 v3f pos = pos_translator.val_current -
 898                                 intToFloat(camera_offset, BS);
 899                 getPosRotMatrix().setTranslation(pos);
 900                 if (node != m_spritenode) { // rotate if not a sprite
 901                         v3f rot = m_is_local_player ? -m_rotation : -rot_translator.val_current;
 902                         setPitchYawRoll(getPosRotMatrix(), rot);
 903                 }
 904         }
 905 }
 906
 907 void GenericCAO::step(float dtime, ClientEnvironment *env)
 908 {
 909         if (m_animated_meshnode) {
 910                 m_animated_meshnode->animateJoints();
 911                 updateBonePosition();
 912         }
 913
 914         // Handle model animations and update positions instantly to prevent lags
 915         if (m_is_local_player) {
 916                 LocalPlayer *player = m_env->getLocalPlayer();
 917                 m_position = player->getPosition();
 918                 pos_translator.val_current = m_position;
 919                 m_rotation.Y = wrapDegrees_0_360(player->getYaw());
 920                 rot_translator.val_current = m_rotation;
 921
 922                 if (m_is_visible) {
 923                         int old_anim = player->last_animation;
 924                         float old_anim_speed = player->last_animation_speed;
 925                         m_velocity = v3f(0,0,0);
 926                         m_acceleration = v3f(0,0,0);
 927                         const PlayerControl &controls = player->getPlayerControl();
 928
 929                         bool walking = false;
 930                         if (controls.up || controls.down || controls.left || controls.right ||
 931                                         controls.forw_move_joystick_axis != 0.f ||
 932                                         controls.sidew_move_joystick_axis != 0.f)
 933                                 walking = true;
 934
 935                         f32 new_speed = player->local_animation_speed;
 936                         v2s32 new_anim = v2s32(0,0);
 937                         bool allow_update = false;
 938
 939                         // increase speed if using fast or flying fast
 940                         if((g_settings->getBool("fast_move") &&
 941                                         m_client->checkLocalPrivilege("fast")) &&
 942                                         (controls.aux1 ||
 943                                         (!player->touching_ground &&
 944                                         g_settings->getBool("free_move") &&
 945                                         m_client->checkLocalPrivilege("fly"))))
 946                                         new_speed *= 1.5;
 947                         // slowdown speed if sneeking
 948                         if (controls.sneak && walking)
 949                                 new_speed /= 2;
 950
 951                         if (walking && (controls.LMB || controls.RMB)) {
 952                                 new_anim = player->local_animations[3];
 953                                 player->last_animation = WD_ANIM;
 954                         } else if(walking) {
 955                                 new_anim = player->local_animations[1];
 956                                 player->last_animation = WALK_ANIM;
 957                         } else if(controls.LMB || controls.RMB) {
 958                                 new_anim = player->local_animations[2];
 959                                 player->last_animation = DIG_ANIM;
 960                         }
 961
 962                         // Apply animations if input detected and not attached
 963                         // or set idle animation
 964                         if ((new_anim.X + new_anim.Y) > 0 && !getParent()) {
 965                                 allow_update = true;
 966                                 m_animation_range = new_anim;
 967                                 m_animation_speed = new_speed;
 968                                 player->last_animation_speed = m_animation_speed;
 969                         } else {
 970                                 player->last_animation = NO_ANIM;
 971
 972                                 if (old_anim != NO_ANIM) {
 973                                         m_animation_range = player->local_animations[0];
 974                                         updateAnimation();
 975                                 }
 976                         }
 977
 978                         // Update local player animations
 979                         if ((player->last_animation != old_anim ||
 980                                 m_animation_speed != old_anim_speed) &&
 981                                 player->last_animation != NO_ANIM && allow_update)
 982                                         updateAnimation();
 983
 984                 }
 985         }
 986
 987         if (m_visuals_expired && m_smgr) {
 988                 m_visuals_expired = false;
 989
 990                 // Attachments, part 1: All attached objects must be unparented first,
 991                 // or Irrlicht causes a segmentation fault
 992                 for (u16 cao_id : m_attachment_child_ids) {
 993                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
 994                         if (obj) {
 995                                 scene::ISceneNode *child_node = obj->getSceneNode();
 996                                 // The node's parent is always an IDummyTraformationSceneNode,
 997                                 // so we need to reparent that one instead.
 998                                 if (child_node)
 999                                         child_node->getParent()->setParent(m_smgr->getRootSceneNode());
1000                         }
1001                 }
1002
1003                 removeFromScene(false);
1004                 addToScene(m_client->tsrc());
1005
1006                 // Attachments, part 2: Now that the parent has been refreshed, put its attachments back
1007                 for (u16 cao_id : m_attachment_child_ids) {
1008                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
1009                         if (obj)
1010                                 obj->updateAttachments();
1011                 }
1012         }
1013
1014         // Make sure m_is_visible is always applied
1015         scene::ISceneNode *node = getSceneNode();
1016         if (node)
1017                 node->setVisible(m_is_visible);
1018
1019         if(getParent() != NULL) // Attachments should be glued to their parent by Irrlicht
1020         {
1021                 // Set these for later
1022                 m_position = getPosition();
1023                 m_velocity = v3f(0,0,0);
1024                 m_acceleration = v3f(0,0,0);
1025                 pos_translator.val_current = m_position;
1026                 pos_translator.val_target = m_position;
1027         } else {
1028                 rot_translator.translate(dtime);
1029                 v3f lastpos = pos_translator.val_current;
1030
1031                 if(m_prop.physical)
1032                 {
1033                         aabb3f box = m_prop.collisionbox;
1034                         box.MinEdge *= BS;
1035                         box.MaxEdge *= BS;
1036                         collisionMoveResult moveresult;
1037                         f32 pos_max_d = BS*0.125; // Distance per iteration
1038                         v3f p_pos = m_position;
1039                         v3f p_velocity = m_velocity;
1040                         moveresult = collisionMoveSimple(env,env->getGameDef(),
1041                                         pos_max_d, box, m_prop.stepheight, dtime,
1042                                         &p_pos, &p_velocity, m_acceleration,
1043                                         this, m_prop.collideWithObjects);
1044                         // Apply results
1045                         m_position = p_pos;
1046                         m_velocity = p_velocity;
1047
1048                         bool is_end_position = moveresult.collides;
1049                         pos_translator.update(m_position, is_end_position, dtime);
1050                 } else {
1051                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
1052                         m_velocity += dtime * m_acceleration;
1053                         pos_translator.update(m_position, pos_translator.aim_is_end,
1054                                         pos_translator.anim_time);
1055                 }
1056                 pos_translator.translate(dtime);
1057                 updateNodePos();
1058
1059                 float moved = lastpos.getDistanceFrom(pos_translator.val_current);
1060                 m_step_distance_counter += moved;
1061                 if (m_step_distance_counter > 1.5f * BS) {
1062                         m_step_distance_counter = 0.0f;
1063                         if (!m_is_local_player && m_prop.makes_footstep_sound) {
1064                                 const NodeDefManager *ndef = m_client->ndef();
1065                                 v3s16 p = floatToInt(getPosition() +
1066                                         v3f(0.0f, (m_prop.collisionbox.MinEdge.Y - 0.5f) * BS, 0.0f), BS);
1067                                 MapNode n = m_env->getMap().getNode(p);
1068                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
1069                                 // Reduce footstep gain, as non-local-player footsteps are
1070                                 // somehow louder.
1071                                 spec.gain *= 0.6f;
1072                                 m_client->sound()->playSoundAt(spec, false, getPosition());
1073                         }
1074                 }
1075         }
1076
1077         m_anim_timer += dtime;
1078         if(m_anim_timer >= m_anim_framelength)
1079         {
1080                 m_anim_timer -= m_anim_framelength;
1081                 m_anim_frame++;
1082                 if(m_anim_frame >= m_anim_num_frames)
1083                         m_anim_frame = 0;
1084         }
1085
1086         updateTexturePos();
1087
1088         if(m_reset_textures_timer >= 0)
1089         {
1090                 m_reset_textures_timer -= dtime;
1091                 if(m_reset_textures_timer <= 0) {
1092                         m_reset_textures_timer = -1;
1093                         updateTextures(m_previous_texture_modifier);
1094                 }
1095         }
1096
1097         if (!getParent() && std::fabs(m_prop.automatic_rotate) > 0.001) {
1098                 // This is the child node's rotation. It is only used for automatic_rotate.
1099                 v3f local_rot = node->getRotation();
1100                 local_rot.Y = modulo360f(local_rot.Y - dtime * core::RADTODEG *
1101                                 m_prop.automatic_rotate);
1102                 node->setRotation(local_rot);
1103         }
1104
1105         if (!getParent() && m_prop.automatic_face_movement_dir &&
1106                         (fabs(m_velocity.Z) > 0.001 || fabs(m_velocity.X) > 0.001)) {
1107                 float target_yaw = atan2(m_velocity.Z, m_velocity.X) * 180 / M_PI
1108                                 + m_prop.automatic_face_movement_dir_offset;
1109                 float max_rotation_per_sec =
1110                                 m_prop.automatic_face_movement_max_rotation_per_sec;
1111
1112                 if (max_rotation_per_sec > 0) {
1113                         wrappedApproachShortest(m_rotation.Y, target_yaw,
1114                                 dtime * max_rotation_per_sec, 360.f);
1115                 } else {
1116                         // Negative values of max_rotation_per_sec mean disabled.
1117                         m_rotation.Y = target_yaw;
1118                 }
1119
1120                 rot_translator.val_current = m_rotation;
1121                 updateNodePos();
1122         }
1123 }
1124
1125 void GenericCAO::updateTexturePos()
1126 {
1127         if(m_spritenode)
1128         {
1129                 scene::ICameraSceneNode* camera =
1130                                 m_spritenode->getSceneManager()->getActiveCamera();
1131                 if(!camera)
1132                         return;
1133                 v3f cam_to_entity = m_spritenode->getAbsolutePosition()
1134                                 - camera->getAbsolutePosition();
1135                 cam_to_entity.normalize();
1136
1137                 int row = m_tx_basepos.Y;
1138                 int col = m_tx_basepos.X;
1139
1140                 if (m_tx_select_horiz_by_yawpitch) {
1141                         if (cam_to_entity.Y > 0.75)
1142                                 col += 5;
1143                         else if (cam_to_entity.Y < -0.75)
1144                                 col += 4;
1145                         else {
1146                                 float mob_dir =
1147                                                 atan2(cam_to_entity.Z, cam_to_entity.X) / M_PI * 180.;
1148                                 float dir = mob_dir - m_rotation.Y;
1149                                 dir = wrapDegrees_180(dir);
1150                                 if (std::fabs(wrapDegrees_180(dir - 0)) <= 45.1f)
1151                                         col += 2;
1152                                 else if(std::fabs(wrapDegrees_180(dir - 90)) <= 45.1f)
1153                                         col += 3;
1154                                 else if(std::fabs(wrapDegrees_180(dir - 180)) <= 45.1f)
1155                                         col += 0;
1156                                 else if(std::fabs(wrapDegrees_180(dir + 90)) <= 45.1f)
1157                                         col += 1;
1158                                 else
1159                                         col += 4;
1160                         }
1161                 }
1162
1163                 // Animation goes downwards
1164                 row += m_anim_frame;
1165
1166                 float txs = m_tx_size.X;
1167                 float tys = m_tx_size.Y;
1168                 setBillboardTextureMatrix(m_spritenode, txs, tys, col, row);
1169         }
1170 }
1171
1172 // Do not pass by reference, see header.
1173 void GenericCAO::updateTextures(std::string mod)
1174 {
1175         ITextureSource *tsrc = m_client->tsrc();
1176
1177         bool use_trilinear_filter = g_settings->getBool("trilinear_filter");
1178         bool use_bilinear_filter = g_settings->getBool("bilinear_filter");
1179         bool use_anisotropic_filter = g_settings->getBool("anisotropic_filter");
1180
1181         m_previous_texture_modifier = m_current_texture_modifier;
1182         m_current_texture_modifier = mod;
1183         m_glow = m_prop.glow;
1184
1185         if (m_spritenode) {
1186                 if (m_prop.visual == "sprite") {
1187                         std::string texturestring = "unknown_node.png";
1188                         if (!m_prop.textures.empty())
1189                                 texturestring = m_prop.textures[0];
1190                         texturestring += mod;
1191                         m_spritenode->getMaterial(0).MaterialType = m_material_type;
1192                         m_spritenode->getMaterial(0).MaterialTypeParam = 0.5f;
1193                         m_spritenode->setMaterialTexture(0,
1194                                         tsrc->getTextureForMesh(texturestring));
1195
1196                         // This allows setting per-material colors. However, until a real lighting
1197                         // system is added, the code below will have no effect. Once MineTest
1198                         // has directional lighting, it should work automatically.
1199                         if (!m_prop.colors.empty()) {
1200                                 m_spritenode->getMaterial(0).AmbientColor = m_prop.colors[0];
1201                                 m_spritenode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1202                                 m_spritenode->getMaterial(0).SpecularColor = m_prop.colors[0];
1203                         }
1204
1205                         m_spritenode->getMaterial(0).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1206                         m_spritenode->getMaterial(0).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1207                         m_spritenode->getMaterial(0).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1208                 }
1209         }
1210
1211         if (m_animated_meshnode) {
1212                 if (m_prop.visual == "mesh") {
1213                         for (u32 i = 0; i < m_prop.textures.size() &&
1214                                         i < m_animated_meshnode->getMaterialCount(); ++i) {
1215                                 std::string texturestring = m_prop.textures[i];
1216                                 if (texturestring.empty())
1217                                         continue; // Empty texture string means don't modify that material
1218                                 texturestring += mod;
1219                                 video::ITexture* texture = tsrc->getTextureForMesh(texturestring);
1220                                 if (!texture) {
1221                                         errorstream<<"GenericCAO::updateTextures(): Could not load texture "<<texturestring<<std::endl;
1222                                         continue;
1223                                 }
1224
1225                                 // Set material flags and texture
1226                                 video::SMaterial& material = m_animated_meshnode->getMaterial(i);
1227                                 material.MaterialType = m_material_type;
1228                                 material.MaterialTypeParam = 0.5f;
1229                                 material.TextureLayer[0].Texture = texture;
1230                                 material.setFlag(video::EMF_LIGHTING, true);
1231                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1232                                 material.setFlag(video::EMF_BACK_FACE_CULLING, m_prop.backface_culling);
1233
1234                                 // don't filter low-res textures, makes them look blurry
1235                                 // player models have a res of 64
1236                                 const core::dimension2d<u32> &size = texture->getOriginalSize();
1237                                 const u32 res = std::min(size.Height, size.Width);
1238                                 use_trilinear_filter &= res > 64;
1239                                 use_bilinear_filter &= res > 64;
1240
1241                                 m_animated_meshnode->getMaterial(i)
1242                                                 .setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1243                                 m_animated_meshnode->getMaterial(i)
1244                                                 .setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1245                                 m_animated_meshnode->getMaterial(i)
1246                                                 .setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1247                         }
1248                         for (u32 i = 0; i < m_prop.colors.size() &&
1249                         i < m_animated_meshnode->getMaterialCount(); ++i)
1250                         {
1251                                 // This allows setting per-material colors. However, until a real lighting
1252                                 // system is added, the code below will have no effect. Once MineTest
1253                                 // has directional lighting, it should work automatically.
1254                                 m_animated_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1255                                 m_animated_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1256                                 m_animated_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1257                         }
1258                 }
1259         }
1260         if(m_meshnode)
1261         {
1262                 if(m_prop.visual == "cube")
1263                 {
1264                         for (u32 i = 0; i < 6; ++i)
1265                         {
1266                                 std::string texturestring = "unknown_node.png";
1267                                 if(m_prop.textures.size() > i)
1268                                         texturestring = m_prop.textures[i];
1269                                 texturestring += mod;
1270
1271
1272                                 // Set material flags and texture
1273                                 video::SMaterial& material = m_meshnode->getMaterial(i);
1274                                 material.MaterialType = m_material_type;
1275                                 material.MaterialTypeParam = 0.5f;
1276                                 material.setFlag(video::EMF_LIGHTING, false);
1277                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1278                                 material.setTexture(0,
1279                                                 tsrc->getTextureForMesh(texturestring));
1280                                 material.getTextureMatrix(0).makeIdentity();
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.size() > i)
1286                                 {
1287                                         m_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1288                                         m_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1289                                         m_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1290                                 }
1291
1292                                 m_meshnode->getMaterial(i).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1293                                 m_meshnode->getMaterial(i).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1294                                 m_meshnode->getMaterial(i).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1295                         }
1296                 } else if (m_prop.visual == "upright_sprite") {
1297                         scene::IMesh *mesh = m_meshnode->getMesh();
1298                         {
1299                                 std::string tname = "unknown_object.png";
1300                                 if (!m_prop.textures.empty())
1301                                         tname = m_prop.textures[0];
1302                                 tname += mod;
1303                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1304                                 buf->getMaterial().setTexture(0,
1305                                                 tsrc->getTextureForMesh(tname));
1306
1307                                 // This allows setting per-material colors. However, until a real lighting
1308                                 // system is added, the code below will have no effect. Once MineTest
1309                                 // has directional lighting, it should work automatically.
1310                                 if(!m_prop.colors.empty()) {
1311                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1312                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1313                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1314                                 }
1315
1316                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1317                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1318                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1319                         }
1320                         {
1321                                 std::string tname = "unknown_object.png";
1322                                 if (m_prop.textures.size() >= 2)
1323                                         tname = m_prop.textures[1];
1324                                 else if (!m_prop.textures.empty())
1325                                         tname = m_prop.textures[0];
1326                                 tname += mod;
1327                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1328                                 buf->getMaterial().setTexture(0,
1329                                                 tsrc->getTextureForMesh(tname));
1330
1331                                 // This allows setting per-material colors. However, until a real lighting
1332                                 // system is added, the code below will have no effect. Once MineTest
1333                                 // has directional lighting, it should work automatically.
1334                                 if (m_prop.colors.size() >= 2) {
1335                                         buf->getMaterial().AmbientColor = m_prop.colors[1];
1336                                         buf->getMaterial().DiffuseColor = m_prop.colors[1];
1337                                         buf->getMaterial().SpecularColor = m_prop.colors[1];
1338                                 } else if (!m_prop.colors.empty()) {
1339                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1340                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1341                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1342                                 }
1343
1344                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1345                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1346                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1347                         }
1348                         // Set mesh color (only if lighting is disabled)
1349                         if (!m_prop.colors.empty() && m_glow < 0)
1350                                 setMeshColor(mesh, m_prop.colors[0]);
1351                 }
1352         }
1353 }
1354
1355 void GenericCAO::updateAnimation()
1356 {
1357         if (!m_animated_meshnode)
1358                 return;
1359
1360         if (m_animated_meshnode->getStartFrame() != m_animation_range.X ||
1361                 m_animated_meshnode->getEndFrame() != m_animation_range.Y)
1362                         m_animated_meshnode->setFrameLoop(m_animation_range.X, m_animation_range.Y);
1363         if (m_animated_meshnode->getAnimationSpeed() != m_animation_speed)
1364                 m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1365         m_animated_meshnode->setTransitionTime(m_animation_blend);
1366 // Requires Irrlicht 1.8 or greater
1367 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR > 1
1368         if (m_animated_meshnode->getLoopMode() != m_animation_loop)
1369                 m_animated_meshnode->setLoopMode(m_animation_loop);
1370 #endif
1371 }
1372
1373 void GenericCAO::updateAnimationSpeed()
1374 {
1375         if (!m_animated_meshnode)
1376                 return;
1377
1378         m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1379 }
1380
1381 void GenericCAO::updateBonePosition()
1382 {
1383         if (m_bone_position.empty() || !m_animated_meshnode)
1384                 return;
1385
1386         m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
1387         for (auto &it : m_bone_position) {
1388                 std::string bone_name = it.first;
1389                 irr::scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
1390                 if (bone) {
1391                         bone->setPosition(it.second.X);
1392                         bone->setRotation(it.second.Y);
1393                 }
1394         }
1395
1396         // search through bones to find mistakenly rotated bones due to bug in Irrlicht
1397         for (u32 i = 0; i < m_animated_meshnode->getJointCount(); ++i) {
1398                 irr::scene::IBoneSceneNode *bone = m_animated_meshnode->getJointNode(i);
1399                 if (!bone)
1400                         continue;
1401
1402                 //If bone is manually positioned there is no need to perform the bug check
1403                 bool skip = false;
1404                 for (auto &it : m_bone_position) {
1405                         if (it.first == bone->getName()) {
1406                                 skip = true;
1407                                 break;
1408                         }
1409                 }
1410                 if (skip)
1411                         continue;
1412
1413                 // Workaround for Irrlicht bug
1414                 // We check each bone to see if it has been rotated ~180deg from its expected position due to a bug in Irricht
1415                 // when using EJUOR_CONTROL joint control. If the bug is detected we update the bone to the proper position
1416                 // and update the bones transformation.
1417                 v3f bone_rot = bone->getRelativeTransformation().getRotationDegrees();
1418                 float offset = fabsf(bone_rot.X - bone->getRotation().X);
1419                 if (offset > 179.9f && offset < 180.1f) {
1420                         bone->setRotation(bone_rot);
1421                         bone->updateAbsolutePosition();
1422                 }
1423         }
1424 }
1425
1426 void GenericCAO::updateAttachments()
1427 {
1428         ClientActiveObject *parent = getParent();
1429
1430         m_attached_to_local = parent && parent->isLocalPlayer();
1431
1432         /*
1433         Following cases exist:
1434                 m_attachment_parent_id == 0 && !parent
1435                         This object is not attached
1436                 m_attachment_parent_id != 0 && parent
1437                         This object is attached
1438                 m_attachment_parent_id != 0 && !parent
1439                         This object will be attached as soon the parent is known
1440                 m_attachment_parent_id == 0 && parent
1441                         Impossible case
1442         */
1443
1444         if (!parent) { // Detach or don't attach
1445                 if (m_matrixnode) {
1446                         v3f old_pos = getPosition();
1447
1448                         m_matrixnode->setParent(m_smgr->getRootSceneNode());
1449                         getPosRotMatrix().setTranslation(old_pos);
1450                         m_matrixnode->updateAbsolutePosition();
1451                 }
1452         }
1453         else // Attach
1454         {
1455                 scene::ISceneNode *parent_node = parent->getSceneNode();
1456                 scene::IAnimatedMeshSceneNode *parent_animated_mesh_node =
1457                                 parent->getAnimatedMeshSceneNode();
1458                 if (parent_animated_mesh_node && !m_attachment_bone.empty()) {
1459                         parent_node = parent_animated_mesh_node->getJointNode(m_attachment_bone.c_str());
1460                 }
1461
1462                 if (m_matrixnode && parent_node) {
1463                         m_matrixnode->setParent(parent_node);
1464                         getPosRotMatrix().setTranslation(m_attachment_position);
1465                         //setPitchYawRoll(getPosRotMatrix(), m_attachment_rotation);
1466                         // use Irrlicht eulers instead
1467                         getPosRotMatrix().setRotationDegrees(m_attachment_rotation);
1468                         m_matrixnode->updateAbsolutePosition();
1469                 }
1470         }
1471 }
1472
1473 bool GenericCAO::visualExpiryRequired(const ObjectProperties &new_) const
1474 {
1475         const ObjectProperties &old = m_prop;
1476         // Ordered to compare primitive types before std::vectors
1477         return old.backface_culling != new_.backface_culling ||
1478                 old.initial_sprite_basepos != new_.initial_sprite_basepos ||
1479                 old.is_visible != new_.is_visible ||
1480                 old.mesh != new_.mesh ||
1481                 old.spritediv != new_.spritediv ||
1482                 old.use_texture_alpha != new_.use_texture_alpha ||
1483                 old.visual != new_.visual ||
1484                 old.visual_size != new_.visual_size ||
1485                 old.wield_item != new_.wield_item ||
1486                 old.colors != new_.colors ||
1487                 old.textures != new_.textures;
1488 }
1489
1490 void GenericCAO::processMessage(const std::string &data)
1491 {
1492         //infostream<<"GenericCAO: Got message"<<std::endl;
1493         std::istringstream is(data, std::ios::binary);
1494         // command
1495         u8 cmd = readU8(is);
1496         if (cmd == AO_CMD_SET_PROPERTIES) {
1497                 ObjectProperties newprops;
1498                 newprops.deSerialize(is);
1499
1500                 // Check what exactly changed
1501                 bool expire_visuals = visualExpiryRequired(newprops);
1502
1503                 // Apply changes
1504                 m_prop = std::move(newprops);
1505
1506                 m_selection_box = m_prop.selectionbox;
1507                 m_selection_box.MinEdge *= BS;
1508                 m_selection_box.MaxEdge *= BS;
1509
1510                 m_tx_size.X = 1.0f / m_prop.spritediv.X;
1511                 m_tx_size.Y = 1.0f / m_prop.spritediv.Y;
1512
1513                 if(!m_initial_tx_basepos_set){
1514                         m_initial_tx_basepos_set = true;
1515                         m_tx_basepos = m_prop.initial_sprite_basepos;
1516                 }
1517                 if (m_is_local_player) {
1518                         LocalPlayer *player = m_env->getLocalPlayer();
1519                         player->makes_footstep_sound = m_prop.makes_footstep_sound;
1520                         aabb3f collision_box = m_prop.collisionbox;
1521                         collision_box.MinEdge *= BS;
1522                         collision_box.MaxEdge *= BS;
1523                         player->setCollisionbox(collision_box);
1524                         player->setEyeHeight(m_prop.eye_height);
1525                         player->setZoomFOV(m_prop.zoom_fov);
1526                 }
1527
1528                 if ((m_is_player && !m_is_local_player) && m_prop.nametag.empty())
1529                         m_prop.nametag = m_name;
1530                 updateNametag();
1531
1532                 if (expire_visuals) {
1533                         expireVisuals();
1534                 } else {
1535                         infostream << "GenericCAO: properties updated but expiring visuals"
1536                                 << " not necessary" << std::endl;
1537                 }
1538         } else if (cmd == AO_CMD_UPDATE_POSITION) {
1539                 // Not sent by the server if this object is an attachment.
1540                 // We might however get here if the server notices the object being detached before the client.
1541                 m_position = readV3F32(is);
1542                 m_velocity = readV3F32(is);
1543                 m_acceleration = readV3F32(is);
1544                 m_rotation = readV3F32(is);
1545
1546                 m_rotation = wrapDegrees_0_360_v3f(m_rotation);
1547                 bool do_interpolate = readU8(is);
1548                 bool is_end_position = readU8(is);
1549                 float update_interval = readF32(is);
1550
1551                 // Place us a bit higher if we're physical, to not sink into
1552                 // the ground due to sucky collision detection...
1553                 if(m_prop.physical)
1554                         m_position += v3f(0,0.002,0);
1555
1556                 if(getParent() != NULL) // Just in case
1557                         return;
1558
1559                 if(do_interpolate)
1560                 {
1561                         if(!m_prop.physical)
1562                                 pos_translator.update(m_position, is_end_position, update_interval);
1563                 } else {
1564                         pos_translator.init(m_position);
1565                 }
1566                 rot_translator.update(m_rotation, false, update_interval);
1567                 updateNodePos();
1568         } else if (cmd == AO_CMD_SET_TEXTURE_MOD) {
1569                 std::string mod = deSerializeString(is);
1570
1571                 // immediately reset a engine issued texture modifier if a mod sends a different one
1572                 if (m_reset_textures_timer > 0) {
1573                         m_reset_textures_timer = -1;
1574                         updateTextures(m_previous_texture_modifier);
1575                 }
1576                 updateTextures(mod);
1577         } else if (cmd == AO_CMD_SET_SPRITE) {
1578                 v2s16 p = readV2S16(is);
1579                 int num_frames = readU16(is);
1580                 float framelength = readF32(is);
1581                 bool select_horiz_by_yawpitch = readU8(is);
1582
1583                 m_tx_basepos = p;
1584                 m_anim_num_frames = num_frames;
1585                 m_anim_framelength = framelength;
1586                 m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1587
1588                 updateTexturePos();
1589         } else if (cmd == AO_CMD_SET_PHYSICS_OVERRIDE) {
1590                 float override_speed = readF32(is);
1591                 float override_jump = readF32(is);
1592                 float override_gravity = readF32(is);
1593                 // these are sent inverted so we get true when the server sends nothing
1594                 bool sneak = !readU8(is);
1595                 bool sneak_glitch = !readU8(is);
1596                 bool new_move = !readU8(is);
1597
1598
1599                 if(m_is_local_player)
1600                 {
1601                         LocalPlayer *player = m_env->getLocalPlayer();
1602                         player->physics_override_speed = override_speed;
1603                         player->physics_override_jump = override_jump;
1604                         player->physics_override_gravity = override_gravity;
1605                         player->physics_override_sneak = sneak;
1606                         player->physics_override_sneak_glitch = sneak_glitch;
1607                         player->physics_override_new_move = new_move;
1608                 }
1609         } else if (cmd == AO_CMD_SET_ANIMATION) {
1610                 // TODO: change frames send as v2s32 value
1611                 v2f range = readV2F32(is);
1612                 if (!m_is_local_player) {
1613                         m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1614                         m_animation_speed = readF32(is);
1615                         m_animation_blend = readF32(is);
1616                         // these are sent inverted so we get true when the server sends nothing
1617                         m_animation_loop = !readU8(is);
1618                         updateAnimation();
1619                 } else {
1620                         LocalPlayer *player = m_env->getLocalPlayer();
1621                         if(player->last_animation == NO_ANIM)
1622                         {
1623                                 m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1624                                 m_animation_speed = readF32(is);
1625                                 m_animation_blend = readF32(is);
1626                                 // these are sent inverted so we get true when the server sends nothing
1627                                 m_animation_loop = !readU8(is);
1628                         }
1629                         // update animation only if local animations present
1630                         // and received animation is unknown (except idle animation)
1631                         bool is_known = false;
1632                         for (int i = 1;i<4;i++)
1633                         {
1634                                 if(m_animation_range.Y == player->local_animations[i].Y)
1635                                         is_known = true;
1636                         }
1637                         if(!is_known ||
1638                                         (player->local_animations[1].Y + player->local_animations[2].Y < 1))
1639                         {
1640                                         updateAnimation();
1641                         }
1642                 }
1643         } else if (cmd == AO_CMD_SET_ANIMATION_SPEED) {
1644                 m_animation_speed = readF32(is);
1645                 updateAnimationSpeed();
1646         } else if (cmd == AO_CMD_SET_BONE_POSITION) {
1647                 std::string bone = deSerializeString(is);
1648                 v3f position = readV3F32(is);
1649                 v3f rotation = readV3F32(is);
1650                 m_bone_position[bone] = core::vector2d<v3f>(position, rotation);
1651
1652                 // updateBonePosition(); now called every step
1653         } else if (cmd == AO_CMD_ATTACH_TO) {
1654                 u16 parent_id = readS16(is);
1655                 std::string bone = deSerializeString(is);
1656                 v3f position = readV3F32(is);
1657                 v3f rotation = readV3F32(is);
1658
1659                 setAttachment(parent_id, bone, position, rotation);
1660
1661                 // localplayer itself can't be attached to localplayer
1662                 if (!m_is_local_player)
1663                         m_is_visible = !m_attached_to_local;
1664         } else if (cmd == AO_CMD_PUNCHED) {
1665                 u16 result_hp = readU16(is);
1666
1667                 // Use this instead of the send damage to not interfere with prediction
1668                 s32 damage = (s32)m_hp - (s32)result_hp;
1669
1670                 m_hp = result_hp;
1671
1672                 if (m_is_local_player)
1673                         m_env->getLocalPlayer()->hp = m_hp;
1674
1675                 if (damage > 0)
1676                 {
1677                         if (m_hp == 0)
1678                         {
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                         } else if (m_reset_textures_timer < 0 && !m_prop.damage_texture_modifier.empty()) {
1686                                 m_reset_textures_timer = 0.05;
1687                                 if(damage >= 2)
1688                                         m_reset_textures_timer += 0.05 * damage;
1689                                 updateTextures(m_current_texture_modifier + m_prop.damage_texture_modifier);
1690                         }
1691                 }
1692
1693                 if (m_hp == 0) {
1694                         // Same as 'Server::DiePlayer'
1695                         clearParentAttachment();
1696                         // Same as 'ObjectRef::l_remove'
1697                         if (!m_is_player)
1698                                 clearChildAttachments();
1699                 }
1700         } else if (cmd == AO_CMD_UPDATE_ARMOR_GROUPS) {
1701                 m_armor_groups.clear();
1702                 int armor_groups_size = readU16(is);
1703                 for(int i=0; i<armor_groups_size; i++)
1704                 {
1705                         std::string name = deSerializeString(is);
1706                         int rating = readS16(is);
1707                         m_armor_groups[name] = rating;
1708                 }
1709         } else if (cmd == AO_CMD_SPAWN_INFANT) {
1710                 u16 child_id = readU16(is);
1711                 u8 type = readU8(is); // maybe this will be useful later
1712                 (void)type;
1713
1714                 addAttachmentChild(child_id);
1715         } else if (cmd == AO_CMD_OBSOLETE1) {
1716                 // Don't do anything and also don't log a warning
1717         } else {
1718                 warningstream << FUNCTION_NAME
1719                         << ": unknown command or outdated client \""
1720                         << +cmd << "\"" << std::endl;
1721         }
1722 }
1723
1724 /* \pre punchitem != NULL
1725  */
1726 bool GenericCAO::directReportPunch(v3f dir, const ItemStack *punchitem,
1727                 float time_from_last_punch)
1728 {
1729         assert(punchitem);      // pre-condition
1730         const ToolCapabilities *toolcap =
1731                         &punchitem->getToolCapabilities(m_client->idef());
1732         PunchDamageResult result = getPunchDamage(
1733                         m_armor_groups,
1734                         toolcap,
1735                         punchitem,
1736                         time_from_last_punch);
1737
1738         if(result.did_punch && result.damage != 0)
1739         {
1740                 if(result.damage < m_hp)
1741                 {
1742                         m_hp -= result.damage;
1743                 } else {
1744                         m_hp = 0;
1745                         // TODO: Execute defined fast response
1746                         // As there is no definition, make a smoke puff
1747                         ClientSimpleObject *simple = createSmokePuff(
1748                                         m_smgr, m_env, m_position,
1749                                         v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1750                         m_env->addSimpleObject(simple);
1751                 }
1752                 if (m_reset_textures_timer < 0 && !m_prop.damage_texture_modifier.empty()) {
1753                         m_reset_textures_timer = 0.05;
1754                         if (result.damage >= 2)
1755                                 m_reset_textures_timer += 0.05 * result.damage;
1756                         updateTextures(m_current_texture_modifier + m_prop.damage_texture_modifier);
1757                 }
1758         }
1759
1760         return false;
1761 }
1762
1763 std::string GenericCAO::debugInfoText()
1764 {
1765         std::ostringstream os(std::ios::binary);
1766         os<<"GenericCAO hp="<<m_hp<<"\n";
1767         os<<"armor={";
1768         for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1769                         i != m_armor_groups.end(); ++i)
1770         {
1771                 os<<i->first<<"="<<i->second<<", ";
1772         }
1773         os<<"}";
1774         return os.str();
1775 }
1776
1777 // Prototype
1778 GenericCAO proto_GenericCAO(NULL, NULL);