src/player.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "player.h"
  21 #include "map.h"
  22 #include "connection.h"
  23 #include "constants.h"
  24 #include "utility.h"
  25 #ifndef SERVER
  26 #include <ITextSceneNode.h>
  27 #endif
  28 #include "main.h" // For g_settings
  29 #include "settings.h"
  30 #include "mapnode_contentfeatures.h"
  31
  32 Player::Player():
  33         touching_ground(false),
  34         in_water(false),
  35         in_water_stable(false),
  36         is_climbing(false),
  37         swimming_up(false),
  38         inventory_backup(NULL),
  39         craftresult_is_preview(true),
  40         hp(20),
  41         peer_id(PEER_ID_INEXISTENT),
  42         m_selected_item(0),
  43         m_pitch(0),
  44         m_yaw(0),
  45         m_speed(0,0,0),
  46         m_position(0,0,0)
  47 {
  48         updateName("<not set>");
  49         resetInventory();
  50 }
  51
  52 Player::~Player()
  53 {
  54         delete inventory_backup;
  55 }
  56
  57 void Player::wieldItem(u16 item)
  58 {
  59         m_selected_item = item;
  60 }
  61
  62 void Player::resetInventory()
  63 {
  64         inventory.clear();
  65         inventory.addList("main", PLAYER_INVENTORY_SIZE);
  66         inventory.addList("craft", 9);
  67         inventory.addList("craftresult", 1);
  68 }
  69
  70 // Y direction is ignored
  71 void Player::accelerate(v3f target_speed, f32 max_increase)
  72 {
  73         v3f d_wanted = target_speed - m_speed;
  74         d_wanted.Y = 0;
  75         f32 dl_wanted = d_wanted.getLength();
  76         f32 dl = dl_wanted;
  77         if(dl > max_increase)
  78                 dl = max_increase;
  79
  80         v3f d = d_wanted.normalize() * dl;
  81
  82         m_speed.X += d.X;
  83         m_speed.Z += d.Z;
  84         //m_speed += d;
  85
  86 #if 0 // old code
  87         if(m_speed.X < target_speed.X - max_increase)
  88                 m_speed.X += max_increase;
  89         else if(m_speed.X > target_speed.X + max_increase)
  90                 m_speed.X -= max_increase;
  91         else if(m_speed.X < target_speed.X)
  92                 m_speed.X = target_speed.X;
  93         else if(m_speed.X > target_speed.X)
  94                 m_speed.X = target_speed.X;
  95
  96         if(m_speed.Z < target_speed.Z - max_increase)
  97                 m_speed.Z += max_increase;
  98         else if(m_speed.Z > target_speed.Z + max_increase)
  99                 m_speed.Z -= max_increase;
 100         else if(m_speed.Z < target_speed.Z)
 101                 m_speed.Z = target_speed.Z;
 102         else if(m_speed.Z > target_speed.Z)
 103                 m_speed.Z = target_speed.Z;
 104 #endif
 105 }
 106
 107 void Player::serialize(std::ostream &os)
 108 {
 109         // Utilize a Settings object for storing values
 110         Settings args;
 111         args.setS32("version", 1);
 112         args.set("name", m_name);
 113         //args.set("password", m_password);
 114         args.setFloat("pitch", m_pitch);
 115         args.setFloat("yaw", m_yaw);
 116         args.setV3F("position", m_position);
 117         args.setBool("craftresult_is_preview", craftresult_is_preview);
 118         args.setS32("hp", hp);
 119
 120         args.writeLines(os);
 121
 122         os<<"PlayerArgsEnd\n";
 123
 124         // If actual inventory is backed up due to creative mode, save it
 125         // instead of the dummy creative mode inventory
 126         if(inventory_backup)
 127                 inventory_backup->serialize(os);
 128         else
 129                 inventory.serialize(os);
 130 }
 131
 132 void Player::deSerialize(std::istream &is, IGameDef *gamedef)
 133 {
 134         Settings args;
 135
 136         for(;;)
 137         {
 138                 if(is.eof())
 139                         throw SerializationError
 140                                         ("Player::deSerialize(): PlayerArgsEnd not found");
 141                 std::string line;
 142                 std::getline(is, line);
 143                 std::string trimmedline = trim(line);
 144                 if(trimmedline == "PlayerArgsEnd")
 145                         break;
 146                 args.parseConfigLine(line);
 147         }
 148
 149         //args.getS32("version"); // Version field value not used
 150         std::string name = args.get("name");
 151         updateName(name.c_str());
 152         setPitch(args.getFloat("pitch"));
 153         setYaw(args.getFloat("yaw"));
 154         setPosition(args.getV3F("position"));
 155         try{
 156                 craftresult_is_preview = args.getBool("craftresult_is_preview");
 157         }catch(SettingNotFoundException &e){
 158                 craftresult_is_preview = true;
 159         }
 160         try{
 161                 hp = args.getS32("hp");
 162         }catch(SettingNotFoundException &e){
 163                 hp = 20;
 164         }
 165
 166         inventory.deSerialize(is, gamedef);
 167 }
 168
 169 /*
 170         ServerRemotePlayer
 171 */
 172
 173 /* ServerActiveObject interface */
 174
 175 InventoryItem* ServerRemotePlayer::getWieldedItem()
 176 {
 177         InventoryList *list = inventory.getList("main");
 178         if (list)
 179                 return list->getItem(m_selected_item);
 180         return NULL;
 181 }
 182 void ServerRemotePlayer::damageWieldedItem(u16 amount)
 183 {
 184         infostream<<"Damaging "<<getName()<<"'s wielded item for amount="
 185                         <<amount<<std::endl;
 186         InventoryList *list = inventory.getList("main");
 187         if(!list)
 188                 return;
 189         InventoryItem *item = list->getItem(m_selected_item);
 190         if(item && (std::string)item->getName() == "ToolItem"){
 191                 ToolItem *titem = (ToolItem*)item;
 192                 bool weared_out = titem->addWear(amount);
 193                 if(weared_out)
 194                         list->deleteItem(m_selected_item);
 195         }
 196 }
 197 bool ServerRemotePlayer::addToInventory(InventoryItem *item)
 198 {
 199         infostream<<"Adding "<<item->getName()<<" into "<<getName()
 200                         <<"'s inventory"<<std::endl;
 201
 202         InventoryList *ilist = inventory.getList("main");
 203         if(ilist == NULL)
 204                 return false;
 205
 206         // In creative mode, just delete the item
 207         if(g_settings->getBool("creative_mode")){
 208                 return false;
 209         }
 210
 211         // Skip if inventory has no free space
 212         if(ilist->roomForItem(item) == false)
 213         {
 214                 infostream<<"Player inventory has no free space"<<std::endl;
 215                 return false;
 216         }
 217
 218         // Add to inventory
 219         InventoryItem *leftover = ilist->addItem(item);
 220         assert(!leftover);
 221
 222         return true;
 223 }
 224 void ServerRemotePlayer::setHP(s16 hp_)
 225 {
 226         hp = hp_;
 227 }
 228 s16 ServerRemotePlayer::getHP()
 229 {
 230         return hp;
 231 }
 232
 233 /*
 234         RemotePlayer
 235 */
 236
 237 #ifndef SERVER
 238
 239 RemotePlayer::RemotePlayer(
 240                 scene::ISceneNode* parent,
 241                 IrrlichtDevice *device,
 242                 s32 id):
 243         scene::ISceneNode(parent, (device==NULL)?NULL:device->getSceneManager(), id),
 244         m_text(NULL)
 245 {
 246         m_box = core::aabbox3d<f32>(-BS/2,0,-BS/2,BS/2,BS*2,BS/2);
 247
 248         if(parent != NULL && device != NULL)
 249         {
 250                 // ISceneNode stores a member called SceneManager
 251                 scene::ISceneManager* mgr = SceneManager;
 252                 video::IVideoDriver* driver = mgr->getVideoDriver();
 253                 gui::IGUIEnvironment* gui = device->getGUIEnvironment();
 254
 255                 // Add a text node for showing the name
 256                 wchar_t wname[1] = {0};
 257                 m_text = mgr->addTextSceneNode(gui->getBuiltInFont(),
 258                                 wname, video::SColor(255,255,255,255), this);
 259                 m_text->setPosition(v3f(0, (f32)BS*2.1, 0));
 260
 261                 // Attach a simple mesh to the player for showing an image
 262                 scene::SMesh *mesh = new scene::SMesh();
 263                 { // Front
 264                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 265                 video::SColor c(255,255,255,255);
 266                 video::S3DVertex vertices[4] =
 267                 {
 268                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
 269                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
 270                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
 271                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
 272                 };
 273                 u16 indices[] = {0,1,2,2,3,0};
 274                 buf->append(vertices, 4, indices, 6);
 275                 // Set material
 276                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 277                 //buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 278                 buf->getMaterial().setTexture(0, driver->getTexture(getTexturePath("player.png").c_str()));
 279                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 280                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 281                 //buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 282                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 283                 // Add to mesh
 284                 mesh->addMeshBuffer(buf);
 285                 buf->drop();
 286                 }
 287                 { // Back
 288                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 289                 video::SColor c(255,255,255,255);
 290                 video::S3DVertex vertices[4] =
 291                 {
 292                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
 293                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
 294                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
 295                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
 296                 };
 297                 u16 indices[] = {0,1,2,2,3,0};
 298                 buf->append(vertices, 4, indices, 6);
 299                 // Set material
 300                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 301                 //buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 302                 buf->getMaterial().setTexture(0, driver->getTexture(getTexturePath("player_back.png").c_str()));
 303                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 304                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 305                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 306                 // Add to mesh
 307                 mesh->addMeshBuffer(buf);
 308                 buf->drop();
 309                 }
 310                 m_node = mgr->addMeshSceneNode(mesh, this);
 311                 mesh->drop();
 312                 m_node->setPosition(v3f(0,0,0));
 313         }
 314 }
 315
 316 RemotePlayer::~RemotePlayer()
 317 {
 318         if(SceneManager != NULL)
 319                 ISceneNode::remove();
 320 }
 321
 322 void RemotePlayer::updateName(const char *name)
 323 {
 324         Player::updateName(name);
 325         if(m_text != NULL)
 326         {
 327                 wchar_t wname[PLAYERNAME_SIZE];
 328                 mbstowcs(wname, m_name, strlen(m_name)+1);
 329                 m_text->setText(wname);
 330         }
 331 }
 332
 333 void RemotePlayer::move(f32 dtime, Map &map, f32 pos_max_d)
 334 {
 335         m_pos_animation_time_counter += dtime;
 336         m_pos_animation_counter += dtime;
 337         v3f movevector = m_position - m_oldpos;
 338         f32 moveratio;
 339         if(m_pos_animation_time < 0.001)
 340                 moveratio = 1.0;
 341         else
 342                 moveratio = m_pos_animation_counter / m_pos_animation_time;
 343         if(moveratio > 1.5)
 344                 moveratio = 1.5;
 345         m_showpos = m_oldpos + movevector * moveratio;
 346
 347         ISceneNode::setPosition(m_showpos);
 348 }
 349
 350 #endif
 351
 352 #ifndef SERVER
 353 /*
 354         LocalPlayer
 355 */
 356
 357 LocalPlayer::LocalPlayer():
 358         m_sneak_node(32767,32767,32767),
 359         m_sneak_node_exists(false)
 360 {
 361         // Initialize hp to 0, so that no hearts will be shown if server
 362         // doesn't support health points
 363         hp = 0;
 364 }
 365
 366 LocalPlayer::~LocalPlayer()
 367 {
 368 }
 369
 370 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d,
 371                 core::list<CollisionInfo> *collision_info)
 372 {
 373         v3f position = getPosition();
 374         v3f oldpos = position;
 375         v3s16 oldpos_i = floatToInt(oldpos, BS);
 376
 377         v3f old_speed = m_speed;
 378
 379         /*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
 380                         <<oldpos_i.Z<<")"<<std::endl;*/
 381
 382         /*
 383                 Calculate new position
 384         */
 385         position += m_speed * dtime;
 386
 387         // Skip collision detection if a special movement mode is used
 388         bool free_move = g_settings->getBool("free_move");
 389         if(free_move)
 390         {
 391                 setPosition(position);
 392                 return;
 393         }
 394
 395         /*
 396                 Collision detection
 397         */
 398
 399         // Player position in nodes
 400         v3s16 pos_i = floatToInt(position, BS);
 401
 402         /*
 403                 Check if player is in water (the oscillating value)
 404         */
 405         try{
 406                 // If in water, the threshold of coming out is at higher y
 407                 if(in_water)
 408                 {
 409                         v3s16 pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
 410                         in_water = content_liquid(map.getNode(pp).getContent());
 411                 }
 412                 // If not in water, the threshold of going in is at lower y
 413                 else
 414                 {
 415                         v3s16 pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
 416                         in_water = content_liquid(map.getNode(pp).getContent());
 417                 }
 418         }
 419         catch(InvalidPositionException &e)
 420         {
 421                 in_water = false;
 422         }
 423
 424         /*
 425                 Check if player is in water (the stable value)
 426         */
 427         try{
 428                 v3s16 pp = floatToInt(position + v3f(0,0,0), BS);
 429                 in_water_stable = content_liquid(map.getNode(pp).getContent());
 430         }
 431         catch(InvalidPositionException &e)
 432         {
 433                 in_water_stable = false;
 434         }
 435
 436         /*
 437                 Check if player is climbing
 438         */
 439
 440         try {
 441                 v3s16 pp = floatToInt(position + v3f(0,0.5*BS,0), BS);
 442                 v3s16 pp2 = floatToInt(position + v3f(0,-0.2*BS,0), BS);
 443                 is_climbing = ((content_features(map.getNode(pp).getContent()).climbable ||
 444                                 content_features(map.getNode(pp2).getContent()).climbable) && !free_move);
 445         }
 446         catch(InvalidPositionException &e)
 447         {
 448                 is_climbing = false;
 449         }
 450
 451         /*
 452                 Collision uncertainty radius
 453                 Make it a bit larger than the maximum distance of movement
 454         */
 455         //f32 d = pos_max_d * 1.1;
 456         // A fairly large value in here makes moving smoother
 457         f32 d = 0.15*BS;
 458
 459         // This should always apply, otherwise there are glitches
 460         assert(d > pos_max_d);
 461
 462         float player_radius = BS*0.35;
 463         float player_height = BS*1.7;
 464
 465         // Maximum distance over border for sneaking
 466         f32 sneak_max = BS*0.4;
 467
 468         /*
 469                 If sneaking, player has larger collision radius to keep from
 470                 falling
 471         */
 472         /*if(control.sneak)
 473                 player_radius = sneak_max + d*1.1;*/
 474
 475         /*
 476                 If sneaking, keep in range from the last walked node and don't
 477                 fall off from it
 478         */
 479         if(control.sneak && m_sneak_node_exists)
 480         {
 481                 f32 maxd = 0.5*BS + sneak_max;
 482                 v3f lwn_f = intToFloat(m_sneak_node, BS);
 483                 position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
 484                 position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
 485
 486                 f32 min_y = lwn_f.Y + 0.5*BS;
 487                 if(position.Y < min_y)
 488                 {
 489                         position.Y = min_y;
 490
 491                         //v3f old_speed = m_speed;
 492
 493                         if(m_speed.Y < 0)
 494                                 m_speed.Y = 0;
 495
 496                         /*if(collision_info)
 497                         {
 498                                 // Report fall collision
 499                                 if(old_speed.Y < m_speed.Y - 0.1)
 500                                 {
 501                                         CollisionInfo info;
 502                                         info.t = COLLISION_FALL;
 503                                         info.speed = m_speed.Y - old_speed.Y;
 504                                         collision_info->push_back(info);
 505                                 }
 506                         }*/
 507                 }
 508         }
 509
 510         /*
 511                 Calculate player collision box (new and old)
 512         */
 513         core::aabbox3d<f32> playerbox(
 514                 position.X - player_radius,
 515                 position.Y - 0.0,
 516                 position.Z - player_radius,
 517                 position.X + player_radius,
 518                 position.Y + player_height,
 519                 position.Z + player_radius
 520         );
 521         core::aabbox3d<f32> playerbox_old(
 522                 oldpos.X - player_radius,
 523                 oldpos.Y - 0.0,
 524                 oldpos.Z - player_radius,
 525                 oldpos.X + player_radius,
 526                 oldpos.Y + player_height,
 527                 oldpos.Z + player_radius
 528         );
 529
 530         /*
 531                 If the player's feet touch the topside of any node, this is
 532                 set to true.
 533
 534                 Player is allowed to jump when this is true.
 535         */
 536         touching_ground = false;
 537
 538         /*std::cout<<"Checking collisions for ("
 539                         <<oldpos_i.X<<","<<oldpos_i.Y<<","<<oldpos_i.Z
 540                         <<") -> ("
 541                         <<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z
 542                         <<"):"<<std::endl;*/
 543
 544         bool standing_on_unloaded = false;
 545
 546         /*
 547                 Go through every node around the player
 548         */
 549         for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++)
 550         for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++)
 551         for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++)
 552         {
 553                 bool is_unloaded = false;
 554                 try{
 555                         // Player collides into walkable nodes
 556                         if(content_walkable(map.getNode(v3s16(x,y,z)).getContent()) == false)
 557                                 continue;
 558                 }
 559                 catch(InvalidPositionException &e)
 560                 {
 561                         is_unloaded = true;
 562                         // Doing nothing here will block the player from
 563                         // walking over map borders
 564                 }
 565
 566                 core::aabbox3d<f32> nodebox = getNodeBox(v3s16(x,y,z), BS);
 567
 568                 /*
 569                         See if the player is touching ground.
 570
 571                         Player touches ground if player's minimum Y is near node's
 572                         maximum Y and player's X-Z-area overlaps with the node's
 573                         X-Z-area.
 574
 575                         Use 0.15*BS so that it is easier to get on a node.
 576                 */
 577                 if(
 578                                 //fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
 579                                 fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < 0.15*BS
 580                                 && nodebox.MaxEdge.X-d > playerbox.MinEdge.X
 581                                 && nodebox.MinEdge.X+d < playerbox.MaxEdge.X
 582                                 && nodebox.MaxEdge.Z-d > playerbox.MinEdge.Z
 583                                 && nodebox.MinEdge.Z+d < playerbox.MaxEdge.Z
 584                 ){
 585                         touching_ground = true;
 586                         if(is_unloaded)
 587                                 standing_on_unloaded = true;
 588                 }
 589
 590                 // If player doesn't intersect with node, ignore node.
 591                 if(playerbox.intersectsWithBox(nodebox) == false)
 592                         continue;
 593
 594                 /*
 595                         Go through every axis
 596                 */
 597                 v3f dirs[3] = {
 598                         v3f(0,0,1), // back-front
 599                         v3f(0,1,0), // top-bottom
 600                         v3f(1,0,0), // right-left
 601                 };
 602                 for(u16 i=0; i<3; i++)
 603                 {
 604                         /*
 605                                 Calculate values along the axis
 606                         */
 607                         f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
 608                         f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
 609                         f32 playermax = playerbox.MaxEdge.dotProduct(dirs[i]);
 610                         f32 playermin = playerbox.MinEdge.dotProduct(dirs[i]);
 611                         f32 playermax_old = playerbox_old.MaxEdge.dotProduct(dirs[i]);
 612                         f32 playermin_old = playerbox_old.MinEdge.dotProduct(dirs[i]);
 613
 614                         /*
 615                                 Check collision for the axis.
 616                                 Collision happens when player is going through a surface.
 617                         */
 618                         /*f32 neg_d = d;
 619                         f32 pos_d = d;
 620                         // Make it easier to get on top of a node
 621                         if(i == 1)
 622                                 neg_d = 0.15*BS;
 623                         bool negative_axis_collides =
 624                                 (nodemax > playermin && nodemax <= playermin_old + neg_d
 625                                         && m_speed.dotProduct(dirs[i]) < 0);
 626                         bool positive_axis_collides =
 627                                 (nodemin < playermax && nodemin >= playermax_old - pos_d
 628                                         && m_speed.dotProduct(dirs[i]) > 0);*/
 629                         bool negative_axis_collides =
 630                                 (nodemax > playermin && nodemax <= playermin_old + d
 631                                         && m_speed.dotProduct(dirs[i]) < 0);
 632                         bool positive_axis_collides =
 633                                 (nodemin < playermax && nodemin >= playermax_old - d
 634                                         && m_speed.dotProduct(dirs[i]) > 0);
 635                         bool main_axis_collides =
 636                                         negative_axis_collides || positive_axis_collides;
 637
 638                         /*
 639                                 Check overlap of player and node in other axes
 640                         */
 641                         bool other_axes_overlap = true;
 642                         for(u16 j=0; j<3; j++)
 643                         {
 644                                 if(j == i)
 645                                         continue;
 646                                 f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[j]);
 647                                 f32 nodemin = nodebox.MinEdge.dotProduct(dirs[j]);
 648                                 f32 playermax = playerbox.MaxEdge.dotProduct(dirs[j]);
 649                                 f32 playermin = playerbox.MinEdge.dotProduct(dirs[j]);
 650                                 if(!(nodemax - d > playermin && nodemin + d < playermax))
 651                                 {
 652                                         other_axes_overlap = false;
 653                                         break;
 654                                 }
 655                         }
 656
 657                         /*
 658                                 If this is a collision, revert the position in the main
 659                                 direction.
 660                         */
 661                         if(other_axes_overlap && main_axis_collides)
 662                         {
 663                                 //v3f old_speed = m_speed;
 664
 665                                 m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
 666                                 position -= position.dotProduct(dirs[i]) * dirs[i];
 667                                 position += oldpos.dotProduct(dirs[i]) * dirs[i];
 668
 669                                 /*if(collision_info)
 670                                 {
 671                                         // Report fall collision
 672                                         if(old_speed.Y < m_speed.Y - 0.1)
 673                                         {
 674                                                 CollisionInfo info;
 675                                                 info.t = COLLISION_FALL;
 676                                                 info.speed = m_speed.Y - old_speed.Y;
 677                                                 collision_info->push_back(info);
 678                                         }
 679                                 }*/
 680                         }
 681
 682                 }
 683         } // xyz
 684
 685         /*
 686                 Check the nodes under the player to see from which node the
 687                 player is sneaking from, if any.
 688         */
 689         {
 690                 v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0), BS);
 691                 v2f player_p2df(position.X, position.Z);
 692                 f32 min_distance_f = 100000.0*BS;
 693                 // If already seeking from some node, compare to it.
 694                 /*if(m_sneak_node_exists)
 695                 {
 696                         v3f sneaknode_pf = intToFloat(m_sneak_node, BS);
 697                         v2f sneaknode_p2df(sneaknode_pf.X, sneaknode_pf.Z);
 698                         f32 d_horiz_f = player_p2df.getDistanceFrom(sneaknode_p2df);
 699                         f32 d_vert_f = fabs(sneaknode_pf.Y + BS*0.5 - position.Y);
 700                         // Ignore if player is not on the same level (likely dropped)
 701                         if(d_vert_f < 0.15*BS)
 702                                 min_distance_f = d_horiz_f;
 703                 }*/
 704                 v3s16 new_sneak_node = m_sneak_node;
 705                 for(s16 x=-1; x<=1; x++)
 706                 for(s16 z=-1; z<=1; z++)
 707                 {
 708                         v3s16 p = pos_i_bottom + v3s16(x,0,z);
 709                         v3f pf = intToFloat(p, BS);
 710                         v2f node_p2df(pf.X, pf.Z);
 711                         f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
 712                         f32 max_axis_distance_f = MYMAX(
 713                                         fabs(player_p2df.X-node_p2df.X),
 714                                         fabs(player_p2df.Y-node_p2df.Y));
 715
 716                         if(distance_f > min_distance_f ||
 717                                         max_axis_distance_f > 0.5*BS + sneak_max + 0.1*BS)
 718                                 continue;
 719
 720                         try{
 721                                 // The node to be sneaked on has to be walkable
 722                                 if(content_walkable(map.getNode(p).getContent()) == false)
 723                                         continue;
 724                                 // And the node above it has to be nonwalkable
 725                                 if(content_walkable(map.getNode(p+v3s16(0,1,0)).getContent()) == true)
 726                                         continue;
 727                         }
 728                         catch(InvalidPositionException &e)
 729                         {
 730                                 continue;
 731                         }
 732
 733                         min_distance_f = distance_f;
 734                         new_sneak_node = p;
 735                 }
 736
 737                 bool sneak_node_found = (min_distance_f < 100000.0*BS*0.9);
 738
 739                 if(control.sneak && m_sneak_node_exists)
 740                 {
 741                         if(sneak_node_found)
 742                                 m_sneak_node = new_sneak_node;
 743                 }
 744                 else
 745                 {
 746                         m_sneak_node = new_sneak_node;
 747                         m_sneak_node_exists = sneak_node_found;
 748                 }
 749
 750                 /*
 751                         If sneaking, the player's collision box can be in air, so
 752                         this has to be set explicitly
 753                 */
 754                 if(sneak_node_found && control.sneak)
 755                         touching_ground = true;
 756         }
 757
 758         /*
 759                 Set new position
 760         */
 761         setPosition(position);
 762
 763         /*
 764                 Report collisions
 765         */
 766         if(collision_info)
 767         {
 768                 // Report fall collision
 769                 if(old_speed.Y < m_speed.Y - 0.1 && !standing_on_unloaded)
 770                 {
 771                         CollisionInfo info;
 772                         info.t = COLLISION_FALL;
 773                         info.speed = m_speed.Y - old_speed.Y;
 774                         collision_info->push_back(info);
 775                 }
 776         }
 777 }
 778
 779 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d)
 780 {
 781         move(dtime, map, pos_max_d, NULL);
 782 }
 783
 784 void LocalPlayer::applyControl(float dtime)
 785 {
 786         // Clear stuff
 787         swimming_up = false;
 788
 789         // Random constants
 790         f32 walk_acceleration = 4.0 * BS;
 791         f32 walkspeed_max = 4.0 * BS;
 792
 793         setPitch(control.pitch);
 794         setYaw(control.yaw);
 795
 796         v3f move_direction = v3f(0,0,1);
 797         move_direction.rotateXZBy(getYaw());
 798
 799         v3f speed = v3f(0,0,0);
 800
 801         bool free_move = g_settings->getBool("free_move");
 802         bool fast_move = g_settings->getBool("fast_move");
 803         bool continuous_forward = g_settings->getBool("continuous_forward");
 804
 805         if(free_move || is_climbing)
 806         {
 807                 v3f speed = getSpeed();
 808                 speed.Y = 0;
 809                 setSpeed(speed);
 810         }
 811
 812         // Whether superspeed mode is used or not
 813         bool superspeed = false;
 814
 815         // If free movement and fast movement, always move fast
 816         if(free_move && fast_move)
 817                 superspeed = true;
 818
 819         // Auxiliary button 1 (E)
 820         if(control.aux1)
 821         {
 822                 if(free_move)
 823                 {
 824                         // In free movement mode, aux1 descends
 825                         v3f speed = getSpeed();
 826                         if(fast_move)
 827                                 speed.Y = -20*BS;
 828                         else
 829                                 speed.Y = -walkspeed_max;
 830                         setSpeed(speed);
 831                 }
 832                 else if(is_climbing)
 833                 {
 834                         v3f speed = getSpeed();
 835                         speed.Y = -3*BS;
 836                         setSpeed(speed);
 837                 }
 838                 else
 839                 {
 840                         // If not free movement but fast is allowed, aux1 is
 841                         // "Turbo button"
 842                         if(fast_move)
 843                                 superspeed = true;
 844                 }
 845         }
 846
 847         if(continuous_forward)
 848                 speed += move_direction;
 849
 850         if(control.up)
 851         {
 852                 if(continuous_forward)
 853                         superspeed = true;
 854                 else
 855                         speed += move_direction;
 856         }
 857         if(control.down)
 858         {
 859                 speed -= move_direction;
 860         }
 861         if(control.left)
 862         {
 863                 speed += move_direction.crossProduct(v3f(0,1,0));
 864         }
 865         if(control.right)
 866         {
 867                 speed += move_direction.crossProduct(v3f(0,-1,0));
 868         }
 869         if(control.jump)
 870         {
 871                 if(free_move)
 872                 {
 873                         v3f speed = getSpeed();
 874                         if(fast_move)
 875                                 speed.Y = 20*BS;
 876                         else
 877                                 speed.Y = walkspeed_max;
 878                         setSpeed(speed);
 879                 }
 880                 else if(touching_ground)
 881                 {
 882                         v3f speed = getSpeed();
 883                         /*
 884                                 NOTE: The d value in move() affects jump height by
 885                                 raising the height at which the jump speed is kept
 886                                 at its starting value
 887                         */
 888                         speed.Y = 6.5*BS;
 889                         setSpeed(speed);
 890                 }
 891                 // Use the oscillating value for getting out of water
 892                 // (so that the player doesn't fly on the surface)
 893                 else if(in_water)
 894                 {
 895                         v3f speed = getSpeed();
 896                         speed.Y = 1.5*BS;
 897                         setSpeed(speed);
 898                         swimming_up = true;
 899                 }
 900                 else if(is_climbing)
 901                 {
 902                         v3f speed = getSpeed();
 903                         speed.Y = 3*BS;
 904                         setSpeed(speed);
 905                 }
 906         }
 907
 908         // The speed of the player (Y is ignored)
 909         if(superspeed)
 910                 speed = speed.normalize() * walkspeed_max * 5.0;
 911         else if(control.sneak)
 912                 speed = speed.normalize() * walkspeed_max / 3.0;
 913         else
 914                 speed = speed.normalize() * walkspeed_max;
 915
 916         f32 inc = walk_acceleration * BS * dtime;
 917
 918         // Faster acceleration if fast and free movement
 919         if(free_move && fast_move)
 920                 inc = walk_acceleration * BS * dtime * 10;
 921
 922         // Accelerate to target speed with maximum increment
 923         accelerate(speed, inc);
 924 }
 925 #endif
 926