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
  26 Player::Player():
  27         touching_ground(false),
  28         in_water(false),
  29         in_water_stable(false),
  30         swimming_up(false),
  31         craftresult_is_preview(true),
  32         hp(20),
  33         peer_id(PEER_ID_INEXISTENT),
  34         m_pitch(0),
  35         m_yaw(0),
  36         m_speed(0,0,0),
  37         m_position(0,0,0),
  38         privs(PRIV_DEFAULT)
  39 {
  40         updateName("<not set>");
  41         resetInventory();
  42 }
  43
  44 Player::~Player()
  45 {
  46 }
  47
  48 void Player::resetInventory()
  49 {
  50         inventory.clear();
  51         inventory.addList("main", PLAYER_INVENTORY_SIZE);
  52         inventory.addList("craft", 9);
  53         inventory.addList("craftresult", 1);
  54 }
  55
  56 // Y direction is ignored
  57 void Player::accelerate(v3f target_speed, f32 max_increase)
  58 {
  59         v3f d_wanted = target_speed - m_speed;
  60         d_wanted.Y = 0;
  61         f32 dl_wanted = d_wanted.getLength();
  62         f32 dl = dl_wanted;
  63         if(dl > max_increase)
  64                 dl = max_increase;
  65
  66         v3f d = d_wanted.normalize() * dl;
  67
  68         m_speed.X += d.X;
  69         m_speed.Z += d.Z;
  70         //m_speed += d;
  71
  72 #if 0 // old code
  73         if(m_speed.X < target_speed.X - max_increase)
  74                 m_speed.X += max_increase;
  75         else if(m_speed.X > target_speed.X + max_increase)
  76                 m_speed.X -= max_increase;
  77         else if(m_speed.X < target_speed.X)
  78                 m_speed.X = target_speed.X;
  79         else if(m_speed.X > target_speed.X)
  80                 m_speed.X = target_speed.X;
  81
  82         if(m_speed.Z < target_speed.Z - max_increase)
  83                 m_speed.Z += max_increase;
  84         else if(m_speed.Z > target_speed.Z + max_increase)
  85                 m_speed.Z -= max_increase;
  86         else if(m_speed.Z < target_speed.Z)
  87                 m_speed.Z = target_speed.Z;
  88         else if(m_speed.Z > target_speed.Z)
  89                 m_speed.Z = target_speed.Z;
  90 #endif
  91 }
  92
  93 void Player::serialize(std::ostream &os)
  94 {
  95         // Utilize a Settings object for storing values
  96         Settings args;
  97         args.setS32("version", 1);
  98         args.set("name", m_name);
  99         args.setFloat("pitch", m_pitch);
 100         args.setFloat("yaw", m_yaw);
 101         args.setV3F("position", m_position);
 102         args.setBool("craftresult_is_preview", craftresult_is_preview);
 103         args.setS32("hp", hp);
 104         args.setU64("privs", privs);
 105
 106         args.writeLines(os);
 107
 108         os<<"PlayerArgsEnd\n";
 109
 110         inventory.serialize(os);
 111 }
 112
 113 void Player::deSerialize(std::istream &is)
 114 {
 115         Settings args;
 116
 117         for(;;)
 118         {
 119                 if(is.eof())
 120                         throw SerializationError
 121                                         ("Player::deSerialize(): PlayerArgsEnd not found");
 122                 std::string line;
 123                 std::getline(is, line);
 124                 std::string trimmedline = trim(line);
 125                 if(trimmedline == "PlayerArgsEnd")
 126                         break;
 127                 args.parseConfigLine(line);
 128         }
 129
 130         //args.getS32("version");
 131         std::string name = args.get("name");
 132         updateName(name.c_str());
 133         m_pitch = args.getFloat("pitch");
 134         m_yaw = args.getFloat("yaw");
 135         m_position = args.getV3F("position");
 136         try{
 137                 craftresult_is_preview = args.getBool("craftresult_is_preview");
 138         }catch(SettingNotFoundException &e){
 139                 craftresult_is_preview = true;
 140         }
 141         try{
 142                 hp = args.getS32("hp");
 143         }catch(SettingNotFoundException &e){
 144                 hp = 20;
 145         }
 146         try{
 147                 std::string sprivs = args.get("privs");
 148                 if(sprivs == "all")
 149                 {
 150                         privs = PRIV_ALL;
 151                 }
 152                 else
 153                 {
 154                         std::istringstream ss(sprivs);
 155                         ss>>privs;
 156                 }
 157         }catch(SettingNotFoundException &e){
 158                 privs = PRIV_DEFAULT;
 159         }
 160
 161         inventory.deSerialize(is);
 162 }
 163
 164 /*
 165         RemotePlayer
 166 */
 167
 168 #ifndef SERVER
 169
 170 RemotePlayer::RemotePlayer(
 171                 scene::ISceneNode* parent,
 172                 IrrlichtDevice *device,
 173                 s32 id):
 174         scene::ISceneNode(parent, (device==NULL)?NULL:device->getSceneManager(), id),
 175         m_text(NULL)
 176 {
 177         m_box = core::aabbox3d<f32>(-BS/2,0,-BS/2,BS/2,BS*2,BS/2);
 178
 179         if(parent != NULL && device != NULL)
 180         {
 181                 // ISceneNode stores a member called SceneManager
 182                 scene::ISceneManager* mgr = SceneManager;
 183                 video::IVideoDriver* driver = mgr->getVideoDriver();
 184                 gui::IGUIEnvironment* gui = device->getGUIEnvironment();
 185
 186                 // Add a text node for showing the name
 187                 wchar_t wname[1] = {0};
 188                 m_text = mgr->addTextSceneNode(gui->getBuiltInFont(),
 189                                 wname, video::SColor(255,255,255,255), this);
 190                 m_text->setPosition(v3f(0, (f32)BS*2.1, 0));
 191
 192                 // Attach a simple mesh to the player for showing an image
 193                 scene::SMesh *mesh = new scene::SMesh();
 194                 { // Front
 195                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 196                 video::SColor c(255,255,255,255);
 197                 video::S3DVertex vertices[4] =
 198                 {
 199                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
 200                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
 201                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
 202                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
 203                 };
 204                 u16 indices[] = {0,1,2,2,3,0};
 205                 buf->append(vertices, 4, indices, 6);
 206                 // Set material
 207                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 208                 //buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 209                 buf->getMaterial().setTexture(0, driver->getTexture(porting::getDataPath("player.png").c_str()));
 210                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 211                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 212                 //buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 213                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 214                 // Add to mesh
 215                 mesh->addMeshBuffer(buf);
 216                 buf->drop();
 217                 }
 218                 { // Back
 219                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 220                 video::SColor c(255,255,255,255);
 221                 video::S3DVertex vertices[4] =
 222                 {
 223                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
 224                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
 225                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
 226                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
 227                 };
 228                 u16 indices[] = {0,1,2,2,3,0};
 229                 buf->append(vertices, 4, indices, 6);
 230                 // Set material
 231                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 232                 //buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 233                 buf->getMaterial().setTexture(0, driver->getTexture(porting::getDataPath("player_back.png").c_str()));
 234                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 235                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 236                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 237                 // Add to mesh
 238                 mesh->addMeshBuffer(buf);
 239                 buf->drop();
 240                 }
 241                 m_node = mgr->addMeshSceneNode(mesh, this);
 242                 mesh->drop();
 243                 m_node->setPosition(v3f(0,0,0));
 244         }
 245 }
 246
 247 RemotePlayer::~RemotePlayer()
 248 {
 249         if(SceneManager != NULL)
 250                 ISceneNode::remove();
 251 }
 252
 253 void RemotePlayer::updateName(const char *name)
 254 {
 255         Player::updateName(name);
 256         if(m_text != NULL)
 257         {
 258                 wchar_t wname[PLAYERNAME_SIZE];
 259                 mbstowcs(wname, m_name, strlen(m_name)+1);
 260                 m_text->setText(wname);
 261         }
 262 }
 263
 264 void RemotePlayer::move(f32 dtime, Map &map, f32 pos_max_d)
 265 {
 266         m_pos_animation_time_counter += dtime;
 267         m_pos_animation_counter += dtime;
 268         v3f movevector = m_position - m_oldpos;
 269         f32 moveratio;
 270         if(m_pos_animation_time < 0.001)
 271                 moveratio = 1.0;
 272         else
 273                 moveratio = m_pos_animation_counter / m_pos_animation_time;
 274         if(moveratio > 1.5)
 275                 moveratio = 1.5;
 276         m_showpos = m_oldpos + movevector * moveratio;
 277
 278         ISceneNode::setPosition(m_showpos);
 279 }
 280
 281 #endif
 282
 283 #ifndef SERVER
 284 /*
 285         LocalPlayer
 286 */
 287
 288 LocalPlayer::LocalPlayer():
 289         m_sneak_node(32767,32767,32767),
 290         m_sneak_node_exists(false)
 291 {
 292         // Initialize hp to 0, so that no hearts will be shown if server
 293         // doesn't support health points
 294         hp = 0;
 295 }
 296
 297 LocalPlayer::~LocalPlayer()
 298 {
 299 }
 300
 301 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d,
 302                 core::list<CollisionInfo> *collision_info)
 303 {
 304         v3f position = getPosition();
 305         v3f oldpos = position;
 306         v3s16 oldpos_i = floatToInt(oldpos, BS);
 307
 308         /*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
 309                         <<oldpos_i.Z<<")"<<std::endl;*/
 310
 311         /*
 312                 Calculate new position
 313         */
 314         position += m_speed * dtime;
 315
 316         // Skip collision detection if a special movement mode is used
 317         bool free_move = g_settings.getBool("free_move");
 318         if(free_move)
 319         {
 320                 setPosition(position);
 321                 return;
 322         }
 323
 324         /*
 325                 Collision detection
 326         */
 327
 328         // Player position in nodes
 329         v3s16 pos_i = floatToInt(position, BS);
 330
 331         /*
 332                 Check if player is in water (the oscillating value)
 333         */
 334         try{
 335                 // If in water, the threshold of coming out is at higher y
 336                 if(in_water)
 337                 {
 338                         v3s16 pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
 339                         in_water = content_liquid(map.getNode(pp).d);
 340                 }
 341                 // If not in water, the threshold of going in is at lower y
 342                 else
 343                 {
 344                         v3s16 pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
 345                         in_water = content_liquid(map.getNode(pp).d);
 346                 }
 347         }
 348         catch(InvalidPositionException &e)
 349         {
 350                 in_water = false;
 351         }
 352
 353         /*
 354                 Check if player is in water (the stable value)
 355         */
 356         try{
 357                 v3s16 pp = floatToInt(position + v3f(0,0,0), BS);
 358                 in_water_stable = content_liquid(map.getNode(pp).d);
 359         }
 360         catch(InvalidPositionException &e)
 361         {
 362                 in_water_stable = false;
 363         }
 364
 365         /*
 366                 Collision uncertainty radius
 367                 Make it a bit larger than the maximum distance of movement
 368         */
 369         //f32 d = pos_max_d * 1.1;
 370         // A fairly large value in here makes moving smoother
 371         f32 d = 0.15*BS;
 372
 373         // This should always apply, otherwise there are glitches
 374         assert(d > pos_max_d);
 375
 376         float player_radius = BS*0.35;
 377         float player_height = BS*1.7;
 378
 379         // Maximum distance over border for sneaking
 380         f32 sneak_max = BS*0.4;
 381
 382         /*
 383                 If sneaking, player has larger collision radius to keep from
 384                 falling
 385         */
 386         /*if(control.sneak)
 387                 player_radius = sneak_max + d*1.1;*/
 388
 389         /*
 390                 If sneaking, keep in range from the last walked node and don't
 391                 fall off from it
 392         */
 393         if(control.sneak && m_sneak_node_exists)
 394         {
 395                 f32 maxd = 0.5*BS + sneak_max;
 396                 v3f lwn_f = intToFloat(m_sneak_node, BS);
 397                 position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
 398                 position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
 399
 400                 f32 min_y = lwn_f.Y + 0.5*BS;
 401                 if(position.Y < min_y)
 402                 {
 403                         position.Y = min_y;
 404                         if(m_speed.Y < 0)
 405                                 m_speed.Y = 0;
 406                 }
 407         }
 408
 409         /*
 410                 Calculate player collision box (new and old)
 411         */
 412         core::aabbox3d<f32> playerbox(
 413                 position.X - player_radius,
 414                 position.Y - 0.0,
 415                 position.Z - player_radius,
 416                 position.X + player_radius,
 417                 position.Y + player_height,
 418                 position.Z + player_radius
 419         );
 420         core::aabbox3d<f32> playerbox_old(
 421                 oldpos.X - player_radius,
 422                 oldpos.Y - 0.0,
 423                 oldpos.Z - player_radius,
 424                 oldpos.X + player_radius,
 425                 oldpos.Y + player_height,
 426                 oldpos.Z + player_radius
 427         );
 428
 429         /*
 430                 If the player's feet touch the topside of any node, this is
 431                 set to true.
 432
 433                 Player is allowed to jump when this is true.
 434         */
 435         touching_ground = false;
 436
 437         /*std::cout<<"Checking collisions for ("
 438                         <<oldpos_i.X<<","<<oldpos_i.Y<<","<<oldpos_i.Z
 439                         <<") -> ("
 440                         <<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z
 441                         <<"):"<<std::endl;*/
 442
 443         /*
 444                 Go through every node around the player
 445         */
 446         for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++)
 447         for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++)
 448         for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++)
 449         {
 450                 try{
 451                         // Player collides into walkable nodes
 452                         if(content_walkable(map.getNode(v3s16(x,y,z)).d) == false)
 453                                 continue;
 454                 }
 455                 catch(InvalidPositionException &e)
 456                 {
 457                         // Doing nothing here will block the player from
 458                         // walking over map borders
 459                 }
 460
 461                 core::aabbox3d<f32> nodebox = getNodeBox(v3s16(x,y,z), BS);
 462
 463                 /*
 464                         See if the player is touching ground.
 465
 466                         Player touches ground if player's minimum Y is near node's
 467                         maximum Y and player's X-Z-area overlaps with the node's
 468                         X-Z-area.
 469
 470                         Use 0.15*BS so that it is easier to get on a node.
 471                 */
 472                 if(
 473                                 //fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
 474                                 fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < 0.15*BS
 475                                 && nodebox.MaxEdge.X-d > playerbox.MinEdge.X
 476                                 && nodebox.MinEdge.X+d < playerbox.MaxEdge.X
 477                                 && nodebox.MaxEdge.Z-d > playerbox.MinEdge.Z
 478                                 && nodebox.MinEdge.Z+d < playerbox.MaxEdge.Z
 479                 ){
 480                         touching_ground = true;
 481                 }
 482
 483                 // If player doesn't intersect with node, ignore node.
 484                 if(playerbox.intersectsWithBox(nodebox) == false)
 485                         continue;
 486
 487                 /*
 488                         Go through every axis
 489                 */
 490                 v3f dirs[3] = {
 491                         v3f(0,0,1), // back-front
 492                         v3f(0,1,0), // top-bottom
 493                         v3f(1,0,0), // right-left
 494                 };
 495                 for(u16 i=0; i<3; i++)
 496                 {
 497                         /*
 498                                 Calculate values along the axis
 499                         */
 500                         f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
 501                         f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
 502                         f32 playermax = playerbox.MaxEdge.dotProduct(dirs[i]);
 503                         f32 playermin = playerbox.MinEdge.dotProduct(dirs[i]);
 504                         f32 playermax_old = playerbox_old.MaxEdge.dotProduct(dirs[i]);
 505                         f32 playermin_old = playerbox_old.MinEdge.dotProduct(dirs[i]);
 506
 507                         /*
 508                                 Check collision for the axis.
 509                                 Collision happens when player is going through a surface.
 510                         */
 511                         /*f32 neg_d = d;
 512                         f32 pos_d = d;
 513                         // Make it easier to get on top of a node
 514                         if(i == 1)
 515                                 neg_d = 0.15*BS;
 516                         bool negative_axis_collides =
 517                                 (nodemax > playermin && nodemax <= playermin_old + neg_d
 518                                         && m_speed.dotProduct(dirs[i]) < 0);
 519                         bool positive_axis_collides =
 520                                 (nodemin < playermax && nodemin >= playermax_old - pos_d
 521                                         && m_speed.dotProduct(dirs[i]) > 0);*/
 522                         bool negative_axis_collides =
 523                                 (nodemax > playermin && nodemax <= playermin_old + d
 524                                         && m_speed.dotProduct(dirs[i]) < 0);
 525                         bool positive_axis_collides =
 526                                 (nodemin < playermax && nodemin >= playermax_old - d
 527                                         && m_speed.dotProduct(dirs[i]) > 0);
 528                         bool main_axis_collides =
 529                                         negative_axis_collides || positive_axis_collides;
 530
 531                         /*
 532                                 Check overlap of player and node in other axes
 533                         */
 534                         bool other_axes_overlap = true;
 535                         for(u16 j=0; j<3; j++)
 536                         {
 537                                 if(j == i)
 538                                         continue;
 539                                 f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[j]);
 540                                 f32 nodemin = nodebox.MinEdge.dotProduct(dirs[j]);
 541                                 f32 playermax = playerbox.MaxEdge.dotProduct(dirs[j]);
 542                                 f32 playermin = playerbox.MinEdge.dotProduct(dirs[j]);
 543                                 if(!(nodemax - d > playermin && nodemin + d < playermax))
 544                                 {
 545                                         other_axes_overlap = false;
 546                                         break;
 547                                 }
 548                         }
 549
 550                         /*
 551                                 If this is a collision, revert the position in the main
 552                                 direction.
 553                         */
 554                         if(other_axes_overlap && main_axis_collides)
 555                         {
 556                                 v3f old_speed = m_speed;
 557
 558                                 m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
 559                                 position -= position.dotProduct(dirs[i]) * dirs[i];
 560                                 position += oldpos.dotProduct(dirs[i]) * dirs[i];
 561
 562                                 if(collision_info)
 563                                 {
 564                                         // Report fall collision
 565                                         if(old_speed.Y < m_speed.Y - 0.1)
 566                                         {
 567                                                 CollisionInfo info;
 568                                                 info.t = COLLISION_FALL;
 569                                                 info.speed = m_speed.Y - old_speed.Y;
 570                                                 collision_info->push_back(info);
 571                                         }
 572                                 }
 573                         }
 574
 575                 }
 576         } // xyz
 577
 578         /*
 579                 Check the nodes under the player to see from which node the
 580                 player is sneaking from, if any.
 581         */
 582         {
 583                 v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0), BS);
 584                 v2f player_p2df(position.X, position.Z);
 585                 f32 min_distance_f = 100000.0*BS;
 586                 // If already seeking from some node, compare to it.
 587                 /*if(m_sneak_node_exists)
 588                 {
 589                         v3f sneaknode_pf = intToFloat(m_sneak_node, BS);
 590                         v2f sneaknode_p2df(sneaknode_pf.X, sneaknode_pf.Z);
 591                         f32 d_horiz_f = player_p2df.getDistanceFrom(sneaknode_p2df);
 592                         f32 d_vert_f = fabs(sneaknode_pf.Y + BS*0.5 - position.Y);
 593                         // Ignore if player is not on the same level (likely dropped)
 594                         if(d_vert_f < 0.15*BS)
 595                                 min_distance_f = d_horiz_f;
 596                 }*/
 597                 v3s16 new_sneak_node = m_sneak_node;
 598                 for(s16 x=-1; x<=1; x++)
 599                 for(s16 z=-1; z<=1; z++)
 600                 {
 601                         v3s16 p = pos_i_bottom + v3s16(x,0,z);
 602                         v3f pf = intToFloat(p, BS);
 603                         v2f node_p2df(pf.X, pf.Z);
 604                         f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
 605                         f32 max_axis_distance_f = MYMAX(
 606                                         fabs(player_p2df.X-node_p2df.X),
 607                                         fabs(player_p2df.Y-node_p2df.Y));
 608
 609                         if(distance_f > min_distance_f ||
 610                                         max_axis_distance_f > 0.5*BS + sneak_max + 0.1*BS)
 611                                 continue;
 612
 613                         try{
 614                                 // The node to be sneaked on has to be walkable
 615                                 if(content_walkable(map.getNode(p).d) == false)
 616                                         continue;
 617                                 // And the node above it has to be nonwalkable
 618                                 if(content_walkable(map.getNode(p+v3s16(0,1,0)).d) == true)
 619                                         continue;
 620                         }
 621                         catch(InvalidPositionException &e)
 622                         {
 623                                 continue;
 624                         }
 625
 626                         min_distance_f = distance_f;
 627                         new_sneak_node = p;
 628                 }
 629
 630                 bool sneak_node_found = (min_distance_f < 100000.0*BS*0.9);
 631
 632                 if(control.sneak && m_sneak_node_exists)
 633                 {
 634                         if(sneak_node_found)
 635                                 m_sneak_node = new_sneak_node;
 636                 }
 637                 else
 638                 {
 639                         m_sneak_node = new_sneak_node;
 640                         m_sneak_node_exists = sneak_node_found;
 641                 }
 642
 643                 /*
 644                         If sneaking, the player's collision box can be in air, so
 645                         this has to be set explicitly
 646                 */
 647                 if(sneak_node_found && control.sneak)
 648                         touching_ground = true;
 649         }
 650
 651         /*
 652                 Set new position
 653         */
 654         setPosition(position);
 655 }
 656
 657 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d)
 658 {
 659         move(dtime, map, pos_max_d, NULL);
 660 }
 661
 662 void LocalPlayer::applyControl(float dtime)
 663 {
 664         // Clear stuff
 665         swimming_up = false;
 666
 667         // Random constants
 668         f32 walk_acceleration = 4.0 * BS;
 669         f32 walkspeed_max = 4.0 * BS;
 670
 671         setPitch(control.pitch);
 672         setYaw(control.yaw);
 673
 674         v3f move_direction = v3f(0,0,1);
 675         move_direction.rotateXZBy(getYaw());
 676
 677         v3f speed = v3f(0,0,0);
 678
 679         bool free_move = g_settings.getBool("free_move");
 680         bool fast_move = g_settings.getBool("fast_move");
 681         bool continuous_forward = g_settings.getBool("continuous_forward");
 682
 683         if(free_move)
 684         {
 685                 v3f speed = getSpeed();
 686                 speed.Y = 0;
 687                 setSpeed(speed);
 688         }
 689
 690         // Whether superspeed mode is used or not
 691         bool superspeed = false;
 692
 693         // If free movement and fast movement, always move fast
 694         if(free_move && fast_move)
 695                 superspeed = true;
 696
 697         // Auxiliary button 1 (E)
 698         if(control.aux1)
 699         {
 700                 if(free_move)
 701                 {
 702                         // In free movement mode, aux1 descends
 703                         v3f speed = getSpeed();
 704                         if(fast_move)
 705                                 speed.Y = -20*BS;
 706                         else
 707                                 speed.Y = -walkspeed_max;
 708                         setSpeed(speed);
 709                 }
 710                 else
 711                 {
 712                         // If not free movement but fast is allowed, aux1 is
 713                         // "Turbo button"
 714                         if(fast_move)
 715                                 superspeed = true;
 716                 }
 717         }
 718
 719         if(continuous_forward)
 720                 speed += move_direction;
 721
 722         if(control.up)
 723         {
 724                 if(continuous_forward)
 725                         superspeed = true;
 726                 else
 727                         speed += move_direction;
 728         }
 729         if(control.down)
 730         {
 731                 speed -= move_direction;
 732         }
 733         if(control.left)
 734         {
 735                 speed += move_direction.crossProduct(v3f(0,1,0));
 736         }
 737         if(control.right)
 738         {
 739                 speed += move_direction.crossProduct(v3f(0,-1,0));
 740         }
 741         if(control.jump)
 742         {
 743                 if(free_move)
 744                 {
 745                         v3f speed = getSpeed();
 746                         if(fast_move)
 747                                 speed.Y = 20*BS;
 748                         else
 749                                 speed.Y = walkspeed_max;
 750                         setSpeed(speed);
 751                 }
 752                 else if(touching_ground)
 753                 {
 754                         v3f speed = getSpeed();
 755                         /*
 756                                 NOTE: The d value in move() affects jump height by
 757                                 raising the height at which the jump speed is kept
 758                                 at its starting value
 759                         */
 760                         speed.Y = 6.5*BS;
 761                         setSpeed(speed);
 762                 }
 763                 // Use the oscillating value for getting out of water
 764                 // (so that the player doesn't fly on the surface)
 765                 else if(in_water)
 766                 {
 767                         v3f speed = getSpeed();
 768                         speed.Y = 1.5*BS;
 769                         setSpeed(speed);
 770                         swimming_up = true;
 771                 }
 772         }
 773
 774         // The speed of the player (Y is ignored)
 775         if(superspeed)
 776                 speed = speed.normalize() * walkspeed_max * 5.0;
 777         else if(control.sneak)
 778                 speed = speed.normalize() * walkspeed_max / 3.0;
 779         else
 780                 speed = speed.normalize() * walkspeed_max;
 781
 782         f32 inc = walk_acceleration * BS * dtime;
 783
 784         // Faster acceleration if fast and free movement
 785         if(free_move && fast_move)
 786                 inc = walk_acceleration * BS * dtime * 10;
 787
 788         // Accelerate to target speed with maximum increment
 789         accelerate(speed, inc);
 790 }
 791 #endif
 792