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
 730                         if (!checkMeshNormals(mesh)) {
 731                                 infostream << "GenericCAO: recalculating normals for mesh "
 732                                         << m_prop.mesh << std::endl;
 733                                 m_smgr->getMeshManipulator()->
 734                                                 recalculateNormals(mesh, true, false);
 735                         }
 736
 737                         m_animated_meshnode->animateJoints(); // Needed for some animations
 738                         m_animated_meshnode->setScale(m_prop.visual_size);
 739
 740                         // set vertex colors to ensure alpha is set
 741                         setMeshColor(m_animated_meshnode->getMesh(), video::SColor(0xFFFFFFFF));
 742
 743                         setAnimatedMeshColor(m_animated_meshnode, video::SColor(0xFFFFFFFF));
 744
 745                         setSceneNodeMaterial(m_animated_meshnode);
 746
 747                         m_animated_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
 748                                 m_prop.backface_culling);
 749                 } else
 750                         errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;
 751         } else if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 752                 grabMatrixNode();
 753                 ItemStack item;
 754                 if (m_prop.wield_item.empty()) {
 755                         // Old format, only textures are specified.
 756                         infostream << "textures: " << m_prop.textures.size() << std::endl;
 757                         if (!m_prop.textures.empty()) {
 758                                 infostream << "textures[0]: " << m_prop.textures[0]
 759                                         << std::endl;
 760                                 IItemDefManager *idef = m_client->idef();
 761                                 item = ItemStack(m_prop.textures[0], 1, 0, idef);
 762                         }
 763                 } else {
 764                         infostream << "serialized form: " << m_prop.wield_item << std::endl;
 765                         item.deSerialize(m_prop.wield_item, m_client->idef());
 766                 }
 767                 m_wield_meshnode = new WieldMeshSceneNode(
 768                         RenderingEngine::get_scene_manager(), -1);
 769                 m_wield_meshnode->setItem(item, m_client,
 770                         (m_prop.visual == "wielditem"));
 771
 772                 m_wield_meshnode->setScale(m_prop.visual_size / 2.0f);
 773                 m_wield_meshnode->setColor(video::SColor(0xFFFFFFFF));
 774         } else {
 775                 infostream<<"GenericCAO::addToScene(): \""<<m_prop.visual
 776                                 <<"\" not supported"<<std::endl;
 777         }
 778
 779         /* don't update while punch texture modifier is active */
 780         if (m_reset_textures_timer < 0)
 781                 updateTextures(m_current_texture_modifier);
 782
 783         scene::ISceneNode *node = getSceneNode();
 784
 785         if (node && m_matrixnode)
 786                 node->setParent(m_matrixnode);
 787
 788         updateNametag();
 789         updateNodePos();
 790         updateAnimation();
 791         updateBonePosition();
 792         updateAttachments();
 793         setNodeLight(m_last_light);
 794 }
 795
 796 void GenericCAO::updateLight(u32 day_night_ratio)
 797 {
 798         if (m_glow < 0)
 799                 return;
 800
 801         u8 light_at_pos = 0;
 802         bool pos_ok;
 803
 804         v3s16 p = getLightPosition();
 805         MapNode n = m_env->getMap().getNode(p, &pos_ok);
 806         if (pos_ok)
 807                 light_at_pos = n.getLightBlend(day_night_ratio, m_client->ndef());
 808         else
 809                 light_at_pos = blend_light(day_night_ratio, LIGHT_SUN, 0);
 810
 811         u8 light = decode_light(light_at_pos + m_glow);
 812         if (light != m_last_light) {
 813                 m_last_light = light;
 814                 setNodeLight(light);
 815         }
 816 }
 817
 818 void GenericCAO::setNodeLight(u8 light)
 819 {
 820         video::SColor color(255, light, light, light);
 821
 822         if (m_prop.visual == "wielditem" || m_prop.visual == "item") {
 823                 if (m_wield_meshnode)
 824                         m_wield_meshnode->setNodeLightColor(color);
 825                 return;
 826         }
 827
 828         if (m_enable_shaders) {
 829                 if (m_prop.visual == "upright_sprite") {
 830                         if (!m_meshnode)
 831                                 return;
 832
 833                         scene::IMesh *mesh = m_meshnode->getMesh();
 834                         for (u32 i = 0; i < mesh->getMeshBufferCount(); ++i) {
 835                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
 836                                 buf->getMaterial().EmissiveColor = color;
 837                         }
 838                 } else {
 839                         scene::ISceneNode *node = getSceneNode();
 840                         if (!node)
 841                                 return;
 842
 843                         for (u32 i = 0; i < node->getMaterialCount(); ++i) {
 844                                 video::SMaterial &material = node->getMaterial(i);
 845                                 material.EmissiveColor = color;
 846                         }
 847                 }
 848         } else {
 849                 if (m_meshnode) {
 850                         setMeshColor(m_meshnode->getMesh(), color);
 851                 } else if (m_animated_meshnode) {
 852                         setAnimatedMeshColor(m_animated_meshnode, color);
 853                 } else if (m_spritenode) {
 854                         m_spritenode->setColor(color);
 855                 }
 856         }
 857 }
 858
 859 v3s16 GenericCAO::getLightPosition()
 860 {
 861         if (m_is_player)
 862                 return floatToInt(m_position + v3f(0, 0.5 * BS, 0), BS);
 863
 864         return floatToInt(m_position, BS);
 865 }
 866
 867 void GenericCAO::updateNametag()
 868 {
 869         if (m_is_local_player) // No nametag for local player
 870                 return;
 871
 872         if (m_prop.nametag.empty()) {
 873                 // Delete nametag
 874                 if (m_nametag) {
 875                         m_client->getCamera()->removeNametag(m_nametag);
 876                         m_nametag = nullptr;
 877                 }
 878                 return;
 879         }
 880
 881         scene::ISceneNode *node = getSceneNode();
 882         if (!node)
 883                 return;
 884
 885         v3f pos;
 886         pos.Y = m_prop.selectionbox.MaxEdge.Y + 0.3f;
 887         if (!m_nametag) {
 888                 // Add nametag
 889                 m_nametag = m_client->getCamera()->addNametag(node,
 890                         m_prop.nametag, m_prop.nametag_color, pos);
 891         } else {
 892                 // Update nametag
 893                 m_nametag->nametag_text = m_prop.nametag;
 894                 m_nametag->nametag_color = m_prop.nametag_color;
 895                 m_nametag->nametag_pos = pos;
 896         }
 897 }
 898
 899 void GenericCAO::updateNodePos()
 900 {
 901         if (getParent() != NULL)
 902                 return;
 903
 904         scene::ISceneNode *node = getSceneNode();
 905
 906         if (node) {
 907                 v3s16 camera_offset = m_env->getCameraOffset();
 908                 v3f pos = pos_translator.val_current -
 909                                 intToFloat(camera_offset, BS);
 910                 getPosRotMatrix().setTranslation(pos);
 911                 if (node != m_spritenode) { // rotate if not a sprite
 912                         v3f rot = m_is_local_player ? -m_rotation : -rot_translator.val_current;
 913                         setPitchYawRoll(getPosRotMatrix(), rot);
 914                 }
 915         }
 916 }
 917
 918 void GenericCAO::step(float dtime, ClientEnvironment *env)
 919 {
 920         if (m_animated_meshnode) {
 921                 m_animated_meshnode->animateJoints();
 922                 updateBonePosition();
 923         }
 924
 925         // Handle model animations and update positions instantly to prevent lags
 926         if (m_is_local_player) {
 927                 LocalPlayer *player = m_env->getLocalPlayer();
 928                 m_position = player->getPosition();
 929                 pos_translator.val_current = m_position;
 930                 m_rotation.Y = wrapDegrees_0_360(player->getYaw());
 931                 rot_translator.val_current = m_rotation;
 932
 933                 if (m_is_visible) {
 934                         int old_anim = player->last_animation;
 935                         float old_anim_speed = player->last_animation_speed;
 936                         m_velocity = v3f(0,0,0);
 937                         m_acceleration = v3f(0,0,0);
 938                         const PlayerControl &controls = player->getPlayerControl();
 939
 940                         bool walking = false;
 941                         if (controls.up || controls.down || controls.left || controls.right ||
 942                                         controls.forw_move_joystick_axis != 0.f ||
 943                                         controls.sidew_move_joystick_axis != 0.f)
 944                                 walking = true;
 945
 946                         f32 new_speed = player->local_animation_speed;
 947                         v2s32 new_anim = v2s32(0,0);
 948                         bool allow_update = false;
 949
 950                         // increase speed if using fast or flying fast
 951                         if((g_settings->getBool("fast_move") &&
 952                                         m_client->checkLocalPrivilege("fast")) &&
 953                                         (controls.aux1 ||
 954                                         (!player->touching_ground &&
 955                                         g_settings->getBool("free_move") &&
 956                                         m_client->checkLocalPrivilege("fly"))))
 957                                         new_speed *= 1.5;
 958                         // slowdown speed if sneeking
 959                         if (controls.sneak && walking)
 960                                 new_speed /= 2;
 961
 962                         if (walking && (controls.LMB || controls.RMB)) {
 963                                 new_anim = player->local_animations[3];
 964                                 player->last_animation = WD_ANIM;
 965                         } else if(walking) {
 966                                 new_anim = player->local_animations[1];
 967                                 player->last_animation = WALK_ANIM;
 968                         } else if(controls.LMB || controls.RMB) {
 969                                 new_anim = player->local_animations[2];
 970                                 player->last_animation = DIG_ANIM;
 971                         }
 972
 973                         // Apply animations if input detected and not attached
 974                         // or set idle animation
 975                         if ((new_anim.X + new_anim.Y) > 0 && !getParent()) {
 976                                 allow_update = true;
 977                                 m_animation_range = new_anim;
 978                                 m_animation_speed = new_speed;
 979                                 player->last_animation_speed = m_animation_speed;
 980                         } else {
 981                                 player->last_animation = NO_ANIM;
 982
 983                                 if (old_anim != NO_ANIM) {
 984                                         m_animation_range = player->local_animations[0];
 985                                         updateAnimation();
 986                                 }
 987                         }
 988
 989                         // Update local player animations
 990                         if ((player->last_animation != old_anim ||
 991                                 m_animation_speed != old_anim_speed) &&
 992                                 player->last_animation != NO_ANIM && allow_update)
 993                                         updateAnimation();
 994
 995                 }
 996         }
 997
 998         if (m_visuals_expired && m_smgr) {
 999                 m_visuals_expired = false;
1000
1001                 // Attachments, part 1: All attached objects must be unparented first,
1002                 // or Irrlicht causes a segmentation fault
1003                 for (u16 cao_id : m_attachment_child_ids) {
1004                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
1005                         if (obj) {
1006                                 scene::ISceneNode *child_node = obj->getSceneNode();
1007                                 // The node's parent is always an IDummyTraformationSceneNode,
1008                                 // so we need to reparent that one instead.
1009                                 if (child_node)
1010                                         child_node->getParent()->setParent(m_smgr->getRootSceneNode());
1011                         }
1012                 }
1013
1014                 removeFromScene(false);
1015                 addToScene(m_client->tsrc());
1016
1017                 // Attachments, part 2: Now that the parent has been refreshed, put its attachments back
1018                 for (u16 cao_id : m_attachment_child_ids) {
1019                         ClientActiveObject *obj = m_env->getActiveObject(cao_id);
1020                         if (obj)
1021                                 obj->updateAttachments();
1022                 }
1023         }
1024
1025         // Make sure m_is_visible is always applied
1026         scene::ISceneNode *node = getSceneNode();
1027         if (node)
1028                 node->setVisible(m_is_visible);
1029
1030         if(getParent() != NULL) // Attachments should be glued to their parent by Irrlicht
1031         {
1032                 // Set these for later
1033                 m_position = getPosition();
1034                 m_velocity = v3f(0,0,0);
1035                 m_acceleration = v3f(0,0,0);
1036                 pos_translator.val_current = m_position;
1037                 pos_translator.val_target = m_position;
1038         } else {
1039                 rot_translator.translate(dtime);
1040                 v3f lastpos = pos_translator.val_current;
1041
1042                 if(m_prop.physical)
1043                 {
1044                         aabb3f box = m_prop.collisionbox;
1045                         box.MinEdge *= BS;
1046                         box.MaxEdge *= BS;
1047                         collisionMoveResult moveresult;
1048                         f32 pos_max_d = BS*0.125; // Distance per iteration
1049                         v3f p_pos = m_position;
1050                         v3f p_velocity = m_velocity;
1051                         moveresult = collisionMoveSimple(env,env->getGameDef(),
1052                                         pos_max_d, box, m_prop.stepheight, dtime,
1053                                         &p_pos, &p_velocity, m_acceleration,
1054                                         this, m_prop.collideWithObjects);
1055                         // Apply results
1056                         m_position = p_pos;
1057                         m_velocity = p_velocity;
1058
1059                         bool is_end_position = moveresult.collides;
1060                         pos_translator.update(m_position, is_end_position, dtime);
1061                 } else {
1062                         m_position += dtime * m_velocity + 0.5 * dtime * dtime * m_acceleration;
1063                         m_velocity += dtime * m_acceleration;
1064                         pos_translator.update(m_position, pos_translator.aim_is_end,
1065                                         pos_translator.anim_time);
1066                 }
1067                 pos_translator.translate(dtime);
1068                 updateNodePos();
1069
1070                 float moved = lastpos.getDistanceFrom(pos_translator.val_current);
1071                 m_step_distance_counter += moved;
1072                 if (m_step_distance_counter > 1.5f * BS) {
1073                         m_step_distance_counter = 0.0f;
1074                         if (!m_is_local_player && m_prop.makes_footstep_sound) {
1075                                 const NodeDefManager *ndef = m_client->ndef();
1076                                 v3s16 p = floatToInt(getPosition() +
1077                                         v3f(0.0f, (m_prop.collisionbox.MinEdge.Y - 0.5f) * BS, 0.0f), BS);
1078                                 MapNode n = m_env->getMap().getNode(p);
1079                                 SimpleSoundSpec spec = ndef->get(n).sound_footstep;
1080                                 // Reduce footstep gain, as non-local-player footsteps are
1081                                 // somehow louder.
1082                                 spec.gain *= 0.6f;
1083                                 m_client->sound()->playSoundAt(spec, false, getPosition());
1084                         }
1085                 }
1086         }
1087
1088         m_anim_timer += dtime;
1089         if(m_anim_timer >= m_anim_framelength)
1090         {
1091                 m_anim_timer -= m_anim_framelength;
1092                 m_anim_frame++;
1093                 if(m_anim_frame >= m_anim_num_frames)
1094                         m_anim_frame = 0;
1095         }
1096
1097         updateTexturePos();
1098
1099         if(m_reset_textures_timer >= 0)
1100         {
1101                 m_reset_textures_timer -= dtime;
1102                 if(m_reset_textures_timer <= 0) {
1103                         m_reset_textures_timer = -1;
1104                         updateTextures(m_previous_texture_modifier);
1105                 }
1106         }
1107
1108         if (!getParent() && std::fabs(m_prop.automatic_rotate) > 0.001) {
1109                 // This is the child node's rotation. It is only used for automatic_rotate.
1110                 v3f local_rot = node->getRotation();
1111                 local_rot.Y = modulo360f(local_rot.Y - dtime * core::RADTODEG *
1112                                 m_prop.automatic_rotate);
1113                 node->setRotation(local_rot);
1114         }
1115
1116         if (!getParent() && m_prop.automatic_face_movement_dir &&
1117                         (fabs(m_velocity.Z) > 0.001 || fabs(m_velocity.X) > 0.001)) {
1118                 float target_yaw = atan2(m_velocity.Z, m_velocity.X) * 180 / M_PI
1119                                 + m_prop.automatic_face_movement_dir_offset;
1120                 float max_rotation_per_sec =
1121                                 m_prop.automatic_face_movement_max_rotation_per_sec;
1122
1123                 if (max_rotation_per_sec > 0) {
1124                         wrappedApproachShortest(m_rotation.Y, target_yaw,
1125                                 dtime * max_rotation_per_sec, 360.f);
1126                 } else {
1127                         // Negative values of max_rotation_per_sec mean disabled.
1128                         m_rotation.Y = target_yaw;
1129                 }
1130
1131                 rot_translator.val_current = m_rotation;
1132                 updateNodePos();
1133         }
1134 }
1135
1136 void GenericCAO::updateTexturePos()
1137 {
1138         if(m_spritenode)
1139         {
1140                 scene::ICameraSceneNode* camera =
1141                                 m_spritenode->getSceneManager()->getActiveCamera();
1142                 if(!camera)
1143                         return;
1144                 v3f cam_to_entity = m_spritenode->getAbsolutePosition()
1145                                 - camera->getAbsolutePosition();
1146                 cam_to_entity.normalize();
1147
1148                 int row = m_tx_basepos.Y;
1149                 int col = m_tx_basepos.X;
1150
1151                 if (m_tx_select_horiz_by_yawpitch) {
1152                         if (cam_to_entity.Y > 0.75)
1153                                 col += 5;
1154                         else if (cam_to_entity.Y < -0.75)
1155                                 col += 4;
1156                         else {
1157                                 float mob_dir =
1158                                                 atan2(cam_to_entity.Z, cam_to_entity.X) / M_PI * 180.;
1159                                 float dir = mob_dir - m_rotation.Y;
1160                                 dir = wrapDegrees_180(dir);
1161                                 if (std::fabs(wrapDegrees_180(dir - 0)) <= 45.1f)
1162                                         col += 2;
1163                                 else if(std::fabs(wrapDegrees_180(dir - 90)) <= 45.1f)
1164                                         col += 3;
1165                                 else if(std::fabs(wrapDegrees_180(dir - 180)) <= 45.1f)
1166                                         col += 0;
1167                                 else if(std::fabs(wrapDegrees_180(dir + 90)) <= 45.1f)
1168                                         col += 1;
1169                                 else
1170                                         col += 4;
1171                         }
1172                 }
1173
1174                 // Animation goes downwards
1175                 row += m_anim_frame;
1176
1177                 float txs = m_tx_size.X;
1178                 float tys = m_tx_size.Y;
1179                 setBillboardTextureMatrix(m_spritenode, txs, tys, col, row);
1180         }
1181 }
1182
1183 // Do not pass by reference, see header.
1184 void GenericCAO::updateTextures(std::string mod)
1185 {
1186         ITextureSource *tsrc = m_client->tsrc();
1187
1188         bool use_trilinear_filter = g_settings->getBool("trilinear_filter");
1189         bool use_bilinear_filter = g_settings->getBool("bilinear_filter");
1190         bool use_anisotropic_filter = g_settings->getBool("anisotropic_filter");
1191
1192         m_previous_texture_modifier = m_current_texture_modifier;
1193         m_current_texture_modifier = mod;
1194         m_glow = m_prop.glow;
1195
1196         if (m_spritenode) {
1197                 if (m_prop.visual == "sprite") {
1198                         std::string texturestring = "unknown_node.png";
1199                         if (!m_prop.textures.empty())
1200                                 texturestring = m_prop.textures[0];
1201                         texturestring += mod;
1202                         m_spritenode->getMaterial(0).MaterialType = m_material_type;
1203                         m_spritenode->getMaterial(0).MaterialTypeParam = 0.5f;
1204                         m_spritenode->setMaterialTexture(0,
1205                                         tsrc->getTextureForMesh(texturestring));
1206
1207                         // This allows setting per-material colors. However, until a real lighting
1208                         // system is added, the code below will have no effect. Once MineTest
1209                         // has directional lighting, it should work automatically.
1210                         if (!m_prop.colors.empty()) {
1211                                 m_spritenode->getMaterial(0).AmbientColor = m_prop.colors[0];
1212                                 m_spritenode->getMaterial(0).DiffuseColor = m_prop.colors[0];
1213                                 m_spritenode->getMaterial(0).SpecularColor = m_prop.colors[0];
1214                         }
1215
1216                         m_spritenode->getMaterial(0).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1217                         m_spritenode->getMaterial(0).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1218                         m_spritenode->getMaterial(0).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1219                 }
1220         }
1221
1222         if (m_animated_meshnode) {
1223                 if (m_prop.visual == "mesh") {
1224                         for (u32 i = 0; i < m_prop.textures.size() &&
1225                                         i < m_animated_meshnode->getMaterialCount(); ++i) {
1226                                 std::string texturestring = m_prop.textures[i];
1227                                 if (texturestring.empty())
1228                                         continue; // Empty texture string means don't modify that material
1229                                 texturestring += mod;
1230                                 video::ITexture* texture = tsrc->getTextureForMesh(texturestring);
1231                                 if (!texture) {
1232                                         errorstream<<"GenericCAO::updateTextures(): Could not load texture "<<texturestring<<std::endl;
1233                                         continue;
1234                                 }
1235
1236                                 // Set material flags and texture
1237                                 video::SMaterial& material = m_animated_meshnode->getMaterial(i);
1238                                 material.MaterialType = m_material_type;
1239                                 material.MaterialTypeParam = 0.5f;
1240                                 material.TextureLayer[0].Texture = texture;
1241                                 material.setFlag(video::EMF_LIGHTING, true);
1242                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1243                                 material.setFlag(video::EMF_BACK_FACE_CULLING, m_prop.backface_culling);
1244
1245                                 // don't filter low-res textures, makes them look blurry
1246                                 // player models have a res of 64
1247                                 const core::dimension2d<u32> &size = texture->getOriginalSize();
1248                                 const u32 res = std::min(size.Height, size.Width);
1249                                 use_trilinear_filter &= res > 64;
1250                                 use_bilinear_filter &= res > 64;
1251
1252                                 m_animated_meshnode->getMaterial(i)
1253                                                 .setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1254                                 m_animated_meshnode->getMaterial(i)
1255                                                 .setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1256                                 m_animated_meshnode->getMaterial(i)
1257                                                 .setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1258                         }
1259                         for (u32 i = 0; i < m_prop.colors.size() &&
1260                         i < m_animated_meshnode->getMaterialCount(); ++i)
1261                         {
1262                                 // This allows setting per-material colors. However, until a real lighting
1263                                 // system is added, the code below will have no effect. Once MineTest
1264                                 // has directional lighting, it should work automatically.
1265                                 m_animated_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1266                                 m_animated_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1267                                 m_animated_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1268                         }
1269                 }
1270         }
1271         if(m_meshnode)
1272         {
1273                 if(m_prop.visual == "cube")
1274                 {
1275                         for (u32 i = 0; i < 6; ++i)
1276                         {
1277                                 std::string texturestring = "unknown_node.png";
1278                                 if(m_prop.textures.size() > i)
1279                                         texturestring = m_prop.textures[i];
1280                                 texturestring += mod;
1281
1282
1283                                 // Set material flags and texture
1284                                 video::SMaterial& material = m_meshnode->getMaterial(i);
1285                                 material.MaterialType = m_material_type;
1286                                 material.MaterialTypeParam = 0.5f;
1287                                 material.setFlag(video::EMF_LIGHTING, false);
1288                                 material.setFlag(video::EMF_BILINEAR_FILTER, false);
1289                                 material.setTexture(0,
1290                                                 tsrc->getTextureForMesh(texturestring));
1291                                 material.getTextureMatrix(0).makeIdentity();
1292
1293                                 // This allows setting per-material colors. However, until a real lighting
1294                                 // system is added, the code below will have no effect. Once MineTest
1295                                 // has directional lighting, it should work automatically.
1296                                 if(m_prop.colors.size() > i)
1297                                 {
1298                                         m_meshnode->getMaterial(i).AmbientColor = m_prop.colors[i];
1299                                         m_meshnode->getMaterial(i).DiffuseColor = m_prop.colors[i];
1300                                         m_meshnode->getMaterial(i).SpecularColor = m_prop.colors[i];
1301                                 }
1302
1303                                 m_meshnode->getMaterial(i).setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1304                                 m_meshnode->getMaterial(i).setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1305                                 m_meshnode->getMaterial(i).setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1306                         }
1307                 } else if (m_prop.visual == "upright_sprite") {
1308                         scene::IMesh *mesh = m_meshnode->getMesh();
1309                         {
1310                                 std::string tname = "unknown_object.png";
1311                                 if (!m_prop.textures.empty())
1312                                         tname = m_prop.textures[0];
1313                                 tname += mod;
1314                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(0);
1315                                 buf->getMaterial().setTexture(0,
1316                                                 tsrc->getTextureForMesh(tname));
1317
1318                                 // This allows setting per-material colors. However, until a real lighting
1319                                 // system is added, the code below will have no effect. Once MineTest
1320                                 // has directional lighting, it should work automatically.
1321                                 if(!m_prop.colors.empty()) {
1322                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1323                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1324                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1325                                 }
1326
1327                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1328                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1329                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1330                         }
1331                         {
1332                                 std::string tname = "unknown_object.png";
1333                                 if (m_prop.textures.size() >= 2)
1334                                         tname = m_prop.textures[1];
1335                                 else if (!m_prop.textures.empty())
1336                                         tname = m_prop.textures[0];
1337                                 tname += mod;
1338                                 scene::IMeshBuffer *buf = mesh->getMeshBuffer(1);
1339                                 buf->getMaterial().setTexture(0,
1340                                                 tsrc->getTextureForMesh(tname));
1341
1342                                 // This allows setting per-material colors. However, until a real lighting
1343                                 // system is added, the code below will have no effect. Once MineTest
1344                                 // has directional lighting, it should work automatically.
1345                                 if (m_prop.colors.size() >= 2) {
1346                                         buf->getMaterial().AmbientColor = m_prop.colors[1];
1347                                         buf->getMaterial().DiffuseColor = m_prop.colors[1];
1348                                         buf->getMaterial().SpecularColor = m_prop.colors[1];
1349                                 } else if (!m_prop.colors.empty()) {
1350                                         buf->getMaterial().AmbientColor = m_prop.colors[0];
1351                                         buf->getMaterial().DiffuseColor = m_prop.colors[0];
1352                                         buf->getMaterial().SpecularColor = m_prop.colors[0];
1353                                 }
1354
1355                                 buf->getMaterial().setFlag(video::EMF_TRILINEAR_FILTER, use_trilinear_filter);
1356                                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, use_bilinear_filter);
1357                                 buf->getMaterial().setFlag(video::EMF_ANISOTROPIC_FILTER, use_anisotropic_filter);
1358                         }
1359                         // Set mesh color (only if lighting is disabled)
1360                         if (!m_prop.colors.empty() && m_glow < 0)
1361                                 setMeshColor(mesh, m_prop.colors[0]);
1362                 }
1363         }
1364 }
1365
1366 void GenericCAO::updateAnimation()
1367 {
1368         if (!m_animated_meshnode)
1369                 return;
1370
1371         if (m_animated_meshnode->getStartFrame() != m_animation_range.X ||
1372                 m_animated_meshnode->getEndFrame() != m_animation_range.Y)
1373                         m_animated_meshnode->setFrameLoop(m_animation_range.X, m_animation_range.Y);
1374         if (m_animated_meshnode->getAnimationSpeed() != m_animation_speed)
1375                 m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1376         m_animated_meshnode->setTransitionTime(m_animation_blend);
1377 // Requires Irrlicht 1.8 or greater
1378 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR > 1
1379         if (m_animated_meshnode->getLoopMode() != m_animation_loop)
1380                 m_animated_meshnode->setLoopMode(m_animation_loop);
1381 #endif
1382 }
1383
1384 void GenericCAO::updateAnimationSpeed()
1385 {
1386         if (!m_animated_meshnode)
1387                 return;
1388
1389         m_animated_meshnode->setAnimationSpeed(m_animation_speed);
1390 }
1391
1392 void GenericCAO::updateBonePosition()
1393 {
1394         if (m_bone_position.empty() || !m_animated_meshnode)
1395                 return;
1396
1397         m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
1398         for (auto &it : m_bone_position) {
1399                 std::string bone_name = it.first;
1400                 irr::scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
1401                 if (bone) {
1402                         bone->setPosition(it.second.X);
1403                         bone->setRotation(it.second.Y);
1404                 }
1405         }
1406
1407         // search through bones to find mistakenly rotated bones due to bug in Irrlicht
1408         for (u32 i = 0; i < m_animated_meshnode->getJointCount(); ++i) {
1409                 irr::scene::IBoneSceneNode *bone = m_animated_meshnode->getJointNode(i);
1410                 if (!bone)
1411                         continue;
1412
1413                 //If bone is manually positioned there is no need to perform the bug check
1414                 bool skip = false;
1415                 for (auto &it : m_bone_position) {
1416                         if (it.first == bone->getName()) {
1417                                 skip = true;
1418                                 break;
1419                         }
1420                 }
1421                 if (skip)
1422                         continue;
1423
1424                 // Workaround for Irrlicht bug
1425                 // We check each bone to see if it has been rotated ~180deg from its expected position due to a bug in Irricht
1426                 // when using EJUOR_CONTROL joint control. If the bug is detected we update the bone to the proper position
1427                 // and update the bones transformation.
1428                 v3f bone_rot = bone->getRelativeTransformation().getRotationDegrees();
1429                 float offset = fabsf(bone_rot.X - bone->getRotation().X);
1430                 if (offset > 179.9f && offset < 180.1f) {
1431                         bone->setRotation(bone_rot);
1432                         bone->updateAbsolutePosition();
1433                 }
1434         }
1435 }
1436
1437 void GenericCAO::updateAttachments()
1438 {
1439         ClientActiveObject *parent = getParent();
1440
1441         m_attached_to_local = parent && parent->isLocalPlayer();
1442
1443         /*
1444         Following cases exist:
1445                 m_attachment_parent_id == 0 && !parent
1446                         This object is not attached
1447                 m_attachment_parent_id != 0 && parent
1448                         This object is attached
1449                 m_attachment_parent_id != 0 && !parent
1450                         This object will be attached as soon the parent is known
1451                 m_attachment_parent_id == 0 && parent
1452                         Impossible case
1453         */
1454
1455         if (!parent) { // Detach or don't attach
1456                 if (m_matrixnode) {
1457                         v3s16 camera_offset = m_env->getCameraOffset();
1458                         v3f old_pos = getPosition();
1459
1460                         m_matrixnode->setParent(m_smgr->getRootSceneNode());
1461                         getPosRotMatrix().setTranslation(old_pos - intToFloat(camera_offset, BS));
1462                         m_matrixnode->updateAbsolutePosition();
1463                 }
1464         }
1465         else // Attach
1466         {
1467                 parent->updateAttachments();
1468                 scene::ISceneNode *parent_node = parent->getSceneNode();
1469                 scene::IAnimatedMeshSceneNode *parent_animated_mesh_node =
1470                                 parent->getAnimatedMeshSceneNode();
1471                 if (parent_animated_mesh_node && !m_attachment_bone.empty()) {
1472                         parent_node = parent_animated_mesh_node->getJointNode(m_attachment_bone.c_str());
1473                 }
1474
1475                 if (m_matrixnode && parent_node) {
1476                         m_matrixnode->setParent(parent_node);
1477                         parent_node->updateAbsolutePosition();
1478                         getPosRotMatrix().setTranslation(m_attachment_position);
1479                         //setPitchYawRoll(getPosRotMatrix(), m_attachment_rotation);
1480                         // use Irrlicht eulers instead
1481                         getPosRotMatrix().setRotationDegrees(m_attachment_rotation);
1482                         m_matrixnode->updateAbsolutePosition();
1483                 }
1484         }
1485 }
1486
1487 bool GenericCAO::visualExpiryRequired(const ObjectProperties &new_) const
1488 {
1489         const ObjectProperties &old = m_prop;
1490         /* Visuals do not need to be expired for:
1491          * - nametag props: handled by updateNametag()
1492          * - textures:      handled by updateTextures()
1493          * - sprite props:  handled by updateTexturePos()
1494          * - glow:          handled by updateLight()
1495          * - any other properties that do not change appearance
1496          */
1497         // Ordered to compare primitive types before std::vectors
1498         return old.backface_culling != new_.backface_culling ||
1499                 old.is_visible != new_.is_visible ||
1500                 old.mesh != new_.mesh ||
1501                 old.use_texture_alpha != new_.use_texture_alpha ||
1502                 old.visual != new_.visual ||
1503                 old.visual_size != new_.visual_size ||
1504                 old.wield_item != new_.wield_item ||
1505                 old.colors != new_.colors;
1506 }
1507
1508 void GenericCAO::processMessage(const std::string &data)
1509 {
1510         //infostream<<"GenericCAO: Got message"<<std::endl;
1511         std::istringstream is(data, std::ios::binary);
1512         // command
1513         u8 cmd = readU8(is);
1514         if (cmd == AO_CMD_SET_PROPERTIES) {
1515                 ObjectProperties newprops;
1516                 newprops.deSerialize(is);
1517
1518                 // Check what exactly changed
1519                 bool expire_visuals = visualExpiryRequired(newprops);
1520                 bool textures_changed = m_prop.textures != newprops.textures;
1521
1522                 // Apply changes
1523                 m_prop = std::move(newprops);
1524
1525                 m_selection_box = m_prop.selectionbox;
1526                 m_selection_box.MinEdge *= BS;
1527                 m_selection_box.MaxEdge *= BS;
1528
1529                 m_tx_size.X = 1.0f / m_prop.spritediv.X;
1530                 m_tx_size.Y = 1.0f / m_prop.spritediv.Y;
1531
1532                 if(!m_initial_tx_basepos_set){
1533                         m_initial_tx_basepos_set = true;
1534                         m_tx_basepos = m_prop.initial_sprite_basepos;
1535                 }
1536                 if (m_is_local_player) {
1537                         LocalPlayer *player = m_env->getLocalPlayer();
1538                         player->makes_footstep_sound = m_prop.makes_footstep_sound;
1539                         aabb3f collision_box = m_prop.collisionbox;
1540                         collision_box.MinEdge *= BS;
1541                         collision_box.MaxEdge *= BS;
1542                         player->setCollisionbox(collision_box);
1543                         player->setEyeHeight(m_prop.eye_height);
1544                         player->setZoomFOV(m_prop.zoom_fov);
1545                 }
1546
1547                 if ((m_is_player && !m_is_local_player) && m_prop.nametag.empty())
1548                         m_prop.nametag = m_name;
1549
1550                 if (expire_visuals) {
1551                         expireVisuals();
1552                 } else {
1553                         infostream << "GenericCAO: properties updated but expiring visuals"
1554                                 << " not necessary" << std::endl;
1555                         if (textures_changed) {
1556                                 // don't update while punch texture modifier is active
1557                                 if (m_reset_textures_timer < 0)
1558                                         updateTextures(m_current_texture_modifier);
1559                         }
1560                         updateNametag();
1561                 }
1562         } else if (cmd == AO_CMD_UPDATE_POSITION) {
1563                 // Not sent by the server if this object is an attachment.
1564                 // We might however get here if the server notices the object being detached before the client.
1565                 m_position = readV3F32(is);
1566                 m_velocity = readV3F32(is);
1567                 m_acceleration = readV3F32(is);
1568                 m_rotation = readV3F32(is);
1569
1570                 m_rotation = wrapDegrees_0_360_v3f(m_rotation);
1571                 bool do_interpolate = readU8(is);
1572                 bool is_end_position = readU8(is);
1573                 float update_interval = readF32(is);
1574
1575                 // Place us a bit higher if we're physical, to not sink into
1576                 // the ground due to sucky collision detection...
1577                 if(m_prop.physical)
1578                         m_position += v3f(0,0.002,0);
1579
1580                 if(getParent() != NULL) // Just in case
1581                         return;
1582
1583                 if(do_interpolate)
1584                 {
1585                         if(!m_prop.physical)
1586                                 pos_translator.update(m_position, is_end_position, update_interval);
1587                 } else {
1588                         pos_translator.init(m_position);
1589                 }
1590                 rot_translator.update(m_rotation, false, update_interval);
1591                 updateNodePos();
1592         } else if (cmd == AO_CMD_SET_TEXTURE_MOD) {
1593                 std::string mod = deSerializeString(is);
1594
1595                 // immediately reset a engine issued texture modifier if a mod sends a different one
1596                 if (m_reset_textures_timer > 0) {
1597                         m_reset_textures_timer = -1;
1598                         updateTextures(m_previous_texture_modifier);
1599                 }
1600                 updateTextures(mod);
1601         } else if (cmd == AO_CMD_SET_SPRITE) {
1602                 v2s16 p = readV2S16(is);
1603                 int num_frames = readU16(is);
1604                 float framelength = readF32(is);
1605                 bool select_horiz_by_yawpitch = readU8(is);
1606
1607                 m_tx_basepos = p;
1608                 m_anim_num_frames = num_frames;
1609                 m_anim_framelength = framelength;
1610                 m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
1611
1612                 updateTexturePos();
1613         } else if (cmd == AO_CMD_SET_PHYSICS_OVERRIDE) {
1614                 float override_speed = readF32(is);
1615                 float override_jump = readF32(is);
1616                 float override_gravity = readF32(is);
1617                 // these are sent inverted so we get true when the server sends nothing
1618                 bool sneak = !readU8(is);
1619                 bool sneak_glitch = !readU8(is);
1620                 bool new_move = !readU8(is);
1621
1622
1623                 if(m_is_local_player)
1624                 {
1625                         LocalPlayer *player = m_env->getLocalPlayer();
1626                         player->physics_override_speed = override_speed;
1627                         player->physics_override_jump = override_jump;
1628                         player->physics_override_gravity = override_gravity;
1629                         player->physics_override_sneak = sneak;
1630                         player->physics_override_sneak_glitch = sneak_glitch;
1631                         player->physics_override_new_move = new_move;
1632                 }
1633         } else if (cmd == AO_CMD_SET_ANIMATION) {
1634                 // TODO: change frames send as v2s32 value
1635                 v2f range = readV2F32(is);
1636                 if (!m_is_local_player) {
1637                         m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1638                         m_animation_speed = readF32(is);
1639                         m_animation_blend = readF32(is);
1640                         // these are sent inverted so we get true when the server sends nothing
1641                         m_animation_loop = !readU8(is);
1642                         updateAnimation();
1643                 } else {
1644                         LocalPlayer *player = m_env->getLocalPlayer();
1645                         if(player->last_animation == NO_ANIM)
1646                         {
1647                                 m_animation_range = v2s32((s32)range.X, (s32)range.Y);
1648                                 m_animation_speed = readF32(is);
1649                                 m_animation_blend = readF32(is);
1650                                 // these are sent inverted so we get true when the server sends nothing
1651                                 m_animation_loop = !readU8(is);
1652                         }
1653                         // update animation only if local animations present
1654                         // and received animation is unknown (except idle animation)
1655                         bool is_known = false;
1656                         for (int i = 1;i<4;i++)
1657                         {
1658                                 if(m_animation_range.Y == player->local_animations[i].Y)
1659                                         is_known = true;
1660                         }
1661                         if(!is_known ||
1662                                         (player->local_animations[1].Y + player->local_animations[2].Y < 1))
1663                         {
1664                                         updateAnimation();
1665                         }
1666                 }
1667         } else if (cmd == AO_CMD_SET_ANIMATION_SPEED) {
1668                 m_animation_speed = readF32(is);
1669                 updateAnimationSpeed();
1670         } else if (cmd == AO_CMD_SET_BONE_POSITION) {
1671                 std::string bone = deSerializeString(is);
1672                 v3f position = readV3F32(is);
1673                 v3f rotation = readV3F32(is);
1674                 m_bone_position[bone] = core::vector2d<v3f>(position, rotation);
1675
1676                 // updateBonePosition(); now called every step
1677         } else if (cmd == AO_CMD_ATTACH_TO) {
1678                 u16 parent_id = readS16(is);
1679                 std::string bone = deSerializeString(is);
1680                 v3f position = readV3F32(is);
1681                 v3f rotation = readV3F32(is);
1682
1683                 setAttachment(parent_id, bone, position, rotation);
1684
1685                 // localplayer itself can't be attached to localplayer
1686                 if (!m_is_local_player)
1687                         m_is_visible = !m_attached_to_local;
1688         } else if (cmd == AO_CMD_PUNCHED) {
1689                 u16 result_hp = readU16(is);
1690
1691                 // Use this instead of the send damage to not interfere with prediction
1692                 s32 damage = (s32)m_hp - (s32)result_hp;
1693
1694                 m_hp = result_hp;
1695
1696                 if (m_is_local_player)
1697                         m_env->getLocalPlayer()->hp = m_hp;
1698
1699                 if (damage > 0)
1700                 {
1701                         if (m_hp == 0)
1702                         {
1703                                 // TODO: Execute defined fast response
1704                                 // As there is no definition, make a smoke puff
1705                                 ClientSimpleObject *simple = createSmokePuff(
1706                                                 m_smgr, m_env, m_position,
1707                                                 v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1708                                 m_env->addSimpleObject(simple);
1709                         } else if (m_reset_textures_timer < 0 && !m_prop.damage_texture_modifier.empty()) {
1710                                 m_reset_textures_timer = 0.05;
1711                                 if(damage >= 2)
1712                                         m_reset_textures_timer += 0.05 * damage;
1713                                 updateTextures(m_current_texture_modifier + m_prop.damage_texture_modifier);
1714                         }
1715                 }
1716
1717                 if (m_hp == 0) {
1718                         // Same as 'Server::DiePlayer'
1719                         clearParentAttachment();
1720                         // Same as 'ObjectRef::l_remove'
1721                         if (!m_is_player)
1722                                 clearChildAttachments();
1723                 }
1724         } else if (cmd == AO_CMD_UPDATE_ARMOR_GROUPS) {
1725                 m_armor_groups.clear();
1726                 int armor_groups_size = readU16(is);
1727                 for(int i=0; i<armor_groups_size; i++)
1728                 {
1729                         std::string name = deSerializeString(is);
1730                         int rating = readS16(is);
1731                         m_armor_groups[name] = rating;
1732                 }
1733         } else if (cmd == AO_CMD_SPAWN_INFANT) {
1734                 u16 child_id = readU16(is);
1735                 u8 type = readU8(is); // maybe this will be useful later
1736                 (void)type;
1737
1738                 addAttachmentChild(child_id);
1739         } else if (cmd == AO_CMD_OBSOLETE1) {
1740                 // Don't do anything and also don't log a warning
1741         } else {
1742                 warningstream << FUNCTION_NAME
1743                         << ": unknown command or outdated client \""
1744                         << +cmd << "\"" << std::endl;
1745         }
1746 }
1747
1748 /* \pre punchitem != NULL
1749  */
1750 bool GenericCAO::directReportPunch(v3f dir, const ItemStack *punchitem,
1751                 float time_from_last_punch)
1752 {
1753         assert(punchitem);      // pre-condition
1754         const ToolCapabilities *toolcap =
1755                         &punchitem->getToolCapabilities(m_client->idef());
1756         PunchDamageResult result = getPunchDamage(
1757                         m_armor_groups,
1758                         toolcap,
1759                         punchitem,
1760                         time_from_last_punch);
1761
1762         if(result.did_punch && result.damage != 0)
1763         {
1764                 if(result.damage < m_hp)
1765                 {
1766                         m_hp -= result.damage;
1767                 } else {
1768                         m_hp = 0;
1769                         // TODO: Execute defined fast response
1770                         // As there is no definition, make a smoke puff
1771                         ClientSimpleObject *simple = createSmokePuff(
1772                                         m_smgr, m_env, m_position,
1773                                         v2f(m_prop.visual_size.X, m_prop.visual_size.Y) * BS);
1774                         m_env->addSimpleObject(simple);
1775                 }
1776                 if (m_reset_textures_timer < 0 && !m_prop.damage_texture_modifier.empty()) {
1777                         m_reset_textures_timer = 0.05;
1778                         if (result.damage >= 2)
1779                                 m_reset_textures_timer += 0.05 * result.damage;
1780                         updateTextures(m_current_texture_modifier + m_prop.damage_texture_modifier);
1781                 }
1782         }
1783
1784         return false;
1785 }
1786
1787 std::string GenericCAO::debugInfoText()
1788 {
1789         std::ostringstream os(std::ios::binary);
1790         os<<"GenericCAO hp="<<m_hp<<"\n";
1791         os<<"armor={";
1792         for(ItemGroupList::const_iterator i = m_armor_groups.begin();
1793                         i != m_armor_groups.end(); ++i)
1794         {
1795                 os<<i->first<<"="<<i->second<<", ";
1796         }
1797         os<<"}";
1798         return os.str();
1799 }
1800
1801 // Prototype
1802 GenericCAO proto_GenericCAO(NULL, NULL);