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
  27 Player::Player():
  28         touching_ground(false),
  29         in_water(false),
  30         in_water_stable(false),
  31         swimming_up(false),
  32         craftresult_is_preview(true),
  33         hp(20),
  34         peer_id(PEER_ID_INEXISTENT),
  35         m_pitch(0),
  36         m_yaw(0),
  37         m_speed(0,0,0),
  38         m_position(0,0,0)
  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.set("password", m_password);
 100         args.setFloat("pitch", m_pitch);
 101         args.setFloat("yaw", m_yaw);
 102         args.setV3F("position", m_position);
 103         args.setBool("craftresult_is_preview", craftresult_is_preview);
 104         args.setS32("hp", hp);
 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         /*std::string password = "";
 134         if(args.exists("password"))
 135                 password = args.get("password");
 136         updatePassword(password.c_str());*/
 137         m_pitch = args.getFloat("pitch");
 138         m_yaw = args.getFloat("yaw");
 139         m_position = args.getV3F("position");
 140         try{
 141                 craftresult_is_preview = args.getBool("craftresult_is_preview");
 142         }catch(SettingNotFoundException &e){
 143                 craftresult_is_preview = true;
 144         }
 145         try{
 146                 hp = args.getS32("hp");
 147         }catch(SettingNotFoundException &e){
 148                 hp = 20;
 149         }
 150         /*try{
 151                 std::string sprivs = args.get("privs");
 152                 if(sprivs == "all")
 153                 {
 154                         privs = PRIV_ALL;
 155                 }
 156                 else
 157                 {
 158                         std::istringstream ss(sprivs);
 159                         ss>>privs;
 160                 }
 161         }catch(SettingNotFoundException &e){
 162                 privs = PRIV_DEFAULT;
 163         }*/
 164
 165         inventory.deSerialize(is);
 166 }
 167
 168 /*
 169         RemotePlayer
 170 */
 171
 172 #ifndef SERVER
 173
 174 RemotePlayer::RemotePlayer(
 175                 scene::ISceneNode* parent,
 176                 IrrlichtDevice *device,
 177                 s32 id):
 178         scene::ISceneNode(parent, (device==NULL)?NULL:device->getSceneManager(), id),
 179         m_text(NULL)
 180 {
 181         m_box = core::aabbox3d<f32>(-BS/2,0,-BS/2,BS/2,BS*2,BS/2);
 182
 183         if(parent != NULL && device != NULL)
 184         {
 185                 // ISceneNode stores a member called SceneManager
 186                 scene::ISceneManager* mgr = SceneManager;
 187                 video::IVideoDriver* driver = mgr->getVideoDriver();
 188                 gui::IGUIEnvironment* gui = device->getGUIEnvironment();
 189
 190                 // Add a text node for showing the name
 191                 wchar_t wname[1] = {0};
 192                 m_text = mgr->addTextSceneNode(gui->getBuiltInFont(),
 193                                 wname, video::SColor(255,255,255,255), this);
 194                 m_text->setPosition(v3f(0, (f32)BS*2.1, 0));
 195
 196                 // Attach a simple mesh to the player for showing an image
 197                 scene::SMesh *mesh = new scene::SMesh();
 198                 { // Front
 199                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 200                 video::SColor c(255,255,255,255);
 201                 video::S3DVertex vertices[4] =
 202                 {
 203                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
 204                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
 205                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
 206                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
 207                 };
 208                 u16 indices[] = {0,1,2,2,3,0};
 209                 buf->append(vertices, 4, indices, 6);
 210                 // Set material
 211                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 212                 //buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 213                 buf->getMaterial().setTexture(0, driver->getTexture(getTexturePath("player.png").c_str()));
 214                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 215                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 216                 //buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 217                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 218                 // Add to mesh
 219                 mesh->addMeshBuffer(buf);
 220                 buf->drop();
 221                 }
 222                 { // Back
 223                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 224                 video::SColor c(255,255,255,255);
 225                 video::S3DVertex vertices[4] =
 226                 {
 227                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
 228                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
 229                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
 230                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
 231                 };
 232                 u16 indices[] = {0,1,2,2,3,0};
 233                 buf->append(vertices, 4, indices, 6);
 234                 // Set material
 235                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 236                 //buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 237                 buf->getMaterial().setTexture(0, driver->getTexture(getTexturePath("player_back.png").c_str()));
 238                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 239                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 240                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 241                 // Add to mesh
 242                 mesh->addMeshBuffer(buf);
 243                 buf->drop();
 244                 }
 245                 m_node = mgr->addMeshSceneNode(mesh, this);
 246                 mesh->drop();
 247                 m_node->setPosition(v3f(0,0,0));
 248         }
 249 }
 250
 251 RemotePlayer::~RemotePlayer()
 252 {
 253         if(SceneManager != NULL)
 254                 ISceneNode::remove();
 255 }
 256
 257 void RemotePlayer::updateName(const char *name)
 258 {
 259         Player::updateName(name);
 260         if(m_text != NULL)
 261         {
 262                 wchar_t wname[PLAYERNAME_SIZE];
 263                 mbstowcs(wname, m_name, strlen(m_name)+1);
 264                 m_text->setText(wname);
 265         }
 266 }
 267
 268 void RemotePlayer::move(f32 dtime, Map &map, f32 pos_max_d)
 269 {
 270         m_pos_animation_time_counter += dtime;
 271         m_pos_animation_counter += dtime;
 272         v3f movevector = m_position - m_oldpos;
 273         f32 moveratio;
 274         if(m_pos_animation_time < 0.001)
 275                 moveratio = 1.0;
 276         else
 277                 moveratio = m_pos_animation_counter / m_pos_animation_time;
 278         if(moveratio > 1.5)
 279                 moveratio = 1.5;
 280         m_showpos = m_oldpos + movevector * moveratio;
 281
 282         ISceneNode::setPosition(m_showpos);
 283 }
 284
 285 #endif
 286
 287 #ifndef SERVER
 288 /*
 289         LocalPlayer
 290 */
 291
 292 LocalPlayer::LocalPlayer():
 293         m_sneak_node(32767,32767,32767),
 294         m_sneak_node_exists(false)
 295 {
 296         // Initialize hp to 0, so that no hearts will be shown if server
 297         // doesn't support health points
 298         hp = 0;
 299 }
 300
 301 LocalPlayer::~LocalPlayer()
 302 {
 303 }
 304
 305 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d,
 306                 core::list<CollisionInfo> *collision_info)
 307 {
 308         v3f position = getPosition();
 309         v3f oldpos = position;
 310         v3s16 oldpos_i = floatToInt(oldpos, BS);
 311
 312         /*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
 313                         <<oldpos_i.Z<<")"<<std::endl;*/
 314
 315         /*
 316                 Calculate new position
 317         */
 318         position += m_speed * dtime;
 319
 320         // Skip collision detection if a special movement mode is used
 321         bool free_move = g_settings.getBool("free_move");
 322         if(free_move)
 323         {
 324                 setPosition(position);
 325                 return;
 326         }
 327
 328         /*
 329                 Collision detection
 330         */
 331
 332         // Player position in nodes
 333         v3s16 pos_i = floatToInt(position, BS);
 334
 335         /*
 336                 Check if player is in water (the oscillating value)
 337         */
 338         try{
 339                 // If in water, the threshold of coming out is at higher y
 340                 if(in_water)
 341                 {
 342                         v3s16 pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
 343                         in_water = content_liquid(map.getNode(pp).d);
 344                 }
 345                 // If not in water, the threshold of going in is at lower y
 346                 else
 347                 {
 348                         v3s16 pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
 349                         in_water = content_liquid(map.getNode(pp).d);
 350                 }
 351         }
 352         catch(InvalidPositionException &e)
 353         {
 354                 in_water = false;
 355         }
 356
 357         /*
 358                 Check if player is in water (the stable value)
 359         */
 360         try{
 361                 v3s16 pp = floatToInt(position + v3f(0,0,0), BS);
 362                 in_water_stable = content_liquid(map.getNode(pp).d);
 363         }
 364         catch(InvalidPositionException &e)
 365         {
 366                 in_water_stable = false;
 367         }
 368
 369         /*
 370                 Collision uncertainty radius
 371                 Make it a bit larger than the maximum distance of movement
 372         */
 373         //f32 d = pos_max_d * 1.1;
 374         // A fairly large value in here makes moving smoother
 375         f32 d = 0.15*BS;
 376
 377         // This should always apply, otherwise there are glitches
 378         assert(d > pos_max_d);
 379
 380         float player_radius = BS*0.35;
 381         float player_height = BS*1.7;
 382
 383         // Maximum distance over border for sneaking
 384         f32 sneak_max = BS*0.4;
 385
 386         /*
 387                 If sneaking, player has larger collision radius to keep from
 388                 falling
 389         */
 390         /*if(control.sneak)
 391                 player_radius = sneak_max + d*1.1;*/
 392
 393         /*
 394                 If sneaking, keep in range from the last walked node and don't
 395                 fall off from it
 396         */
 397         if(control.sneak && m_sneak_node_exists)
 398         {
 399                 f32 maxd = 0.5*BS + sneak_max;
 400                 v3f lwn_f = intToFloat(m_sneak_node, BS);
 401                 position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
 402                 position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
 403
 404                 f32 min_y = lwn_f.Y + 0.5*BS;
 405                 if(position.Y < min_y)
 406                 {
 407                         position.Y = min_y;
 408                         if(m_speed.Y < 0)
 409                                 m_speed.Y = 0;
 410                 }
 411         }
 412
 413         /*
 414                 Calculate player collision box (new and old)
 415         */
 416         core::aabbox3d<f32> playerbox(
 417                 position.X - player_radius,
 418                 position.Y - 0.0,
 419                 position.Z - player_radius,
 420                 position.X + player_radius,
 421                 position.Y + player_height,
 422                 position.Z + player_radius
 423         );
 424         core::aabbox3d<f32> playerbox_old(
 425                 oldpos.X - player_radius,
 426                 oldpos.Y - 0.0,
 427                 oldpos.Z - player_radius,
 428                 oldpos.X + player_radius,
 429                 oldpos.Y + player_height,
 430                 oldpos.Z + player_radius
 431         );
 432
 433         /*
 434                 If the player's feet touch the topside of any node, this is
 435                 set to true.
 436
 437                 Player is allowed to jump when this is true.
 438         */
 439         touching_ground = false;
 440
 441         /*std::cout<<"Checking collisions for ("
 442                         <<oldpos_i.X<<","<<oldpos_i.Y<<","<<oldpos_i.Z
 443                         <<") -> ("
 444                         <<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z
 445                         <<"):"<<std::endl;*/
 446
 447         /*
 448                 Go through every node around the player
 449         */
 450         for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++)
 451         for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++)
 452         for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++)
 453         {
 454                 try{
 455                         // Player collides into walkable nodes
 456                         if(content_walkable(map.getNode(v3s16(x,y,z)).d) == false)
 457                                 continue;
 458                 }
 459                 catch(InvalidPositionException &e)
 460                 {
 461                         // Doing nothing here will block the player from
 462                         // walking over map borders
 463                 }
 464
 465                 core::aabbox3d<f32> nodebox = getNodeBox(v3s16(x,y,z), BS);
 466
 467                 /*
 468                         See if the player is touching ground.
 469
 470                         Player touches ground if player's minimum Y is near node's
 471                         maximum Y and player's X-Z-area overlaps with the node's
 472                         X-Z-area.
 473
 474                         Use 0.15*BS so that it is easier to get on a node.
 475                 */
 476                 if(
 477                                 //fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
 478                                 fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < 0.15*BS
 479                                 && nodebox.MaxEdge.X-d > playerbox.MinEdge.X
 480                                 && nodebox.MinEdge.X+d < playerbox.MaxEdge.X
 481                                 && nodebox.MaxEdge.Z-d > playerbox.MinEdge.Z
 482                                 && nodebox.MinEdge.Z+d < playerbox.MaxEdge.Z
 483                 ){
 484                         touching_ground = true;
 485                 }
 486
 487                 // If player doesn't intersect with node, ignore node.
 488                 if(playerbox.intersectsWithBox(nodebox) == false)
 489                         continue;
 490
 491                 /*
 492                         Go through every axis
 493                 */
 494                 v3f dirs[3] = {
 495                         v3f(0,0,1), // back-front
 496                         v3f(0,1,0), // top-bottom
 497                         v3f(1,0,0), // right-left
 498                 };
 499                 for(u16 i=0; i<3; i++)
 500                 {
 501                         /*
 502                                 Calculate values along the axis
 503                         */
 504                         f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
 505                         f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
 506                         f32 playermax = playerbox.MaxEdge.dotProduct(dirs[i]);
 507                         f32 playermin = playerbox.MinEdge.dotProduct(dirs[i]);
 508                         f32 playermax_old = playerbox_old.MaxEdge.dotProduct(dirs[i]);
 509                         f32 playermin_old = playerbox_old.MinEdge.dotProduct(dirs[i]);
 510
 511                         /*
 512                                 Check collision for the axis.
 513                                 Collision happens when player is going through a surface.
 514                         */
 515                         /*f32 neg_d = d;
 516                         f32 pos_d = d;
 517                         // Make it easier to get on top of a node
 518                         if(i == 1)
 519                                 neg_d = 0.15*BS;
 520                         bool negative_axis_collides =
 521                                 (nodemax > playermin && nodemax <= playermin_old + neg_d
 522                                         && m_speed.dotProduct(dirs[i]) < 0);
 523                         bool positive_axis_collides =
 524                                 (nodemin < playermax && nodemin >= playermax_old - pos_d
 525                                         && m_speed.dotProduct(dirs[i]) > 0);*/
 526                         bool negative_axis_collides =
 527                                 (nodemax > playermin && nodemax <= playermin_old + d
 528                                         && m_speed.dotProduct(dirs[i]) < 0);
 529                         bool positive_axis_collides =
 530                                 (nodemin < playermax && nodemin >= playermax_old - d
 531                                         && m_speed.dotProduct(dirs[i]) > 0);
 532                         bool main_axis_collides =
 533                                         negative_axis_collides || positive_axis_collides;
 534
 535                         /*
 536                                 Check overlap of player and node in other axes
 537                         */
 538                         bool other_axes_overlap = true;
 539                         for(u16 j=0; j<3; j++)
 540                         {
 541                                 if(j == i)
 542                                         continue;
 543                                 f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[j]);
 544                                 f32 nodemin = nodebox.MinEdge.dotProduct(dirs[j]);
 545                                 f32 playermax = playerbox.MaxEdge.dotProduct(dirs[j]);
 546                                 f32 playermin = playerbox.MinEdge.dotProduct(dirs[j]);
 547                                 if(!(nodemax - d > playermin && nodemin + d < playermax))
 548                                 {
 549                                         other_axes_overlap = false;
 550                                         break;
 551                                 }
 552                         }
 553
 554                         /*
 555                                 If this is a collision, revert the position in the main
 556                                 direction.
 557                         */
 558                         if(other_axes_overlap && main_axis_collides)
 559                         {
 560                                 v3f old_speed = m_speed;
 561
 562                                 m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
 563                                 position -= position.dotProduct(dirs[i]) * dirs[i];
 564                                 position += oldpos.dotProduct(dirs[i]) * dirs[i];
 565
 566                                 if(collision_info)
 567                                 {
 568                                         // Report fall collision
 569                                         if(old_speed.Y < m_speed.Y - 0.1)
 570                                         {
 571                                                 CollisionInfo info;
 572                                                 info.t = COLLISION_FALL;
 573                                                 info.speed = m_speed.Y - old_speed.Y;
 574                                                 collision_info->push_back(info);
 575                                         }
 576                                 }
 577                         }
 578
 579                 }
 580         } // xyz
 581
 582         /*
 583                 Check the nodes under the player to see from which node the
 584                 player is sneaking from, if any.
 585         */
 586         {
 587                 v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0), BS);
 588                 v2f player_p2df(position.X, position.Z);
 589                 f32 min_distance_f = 100000.0*BS;
 590                 // If already seeking from some node, compare to it.
 591                 /*if(m_sneak_node_exists)
 592                 {
 593                         v3f sneaknode_pf = intToFloat(m_sneak_node, BS);
 594                         v2f sneaknode_p2df(sneaknode_pf.X, sneaknode_pf.Z);
 595                         f32 d_horiz_f = player_p2df.getDistanceFrom(sneaknode_p2df);
 596                         f32 d_vert_f = fabs(sneaknode_pf.Y + BS*0.5 - position.Y);
 597                         // Ignore if player is not on the same level (likely dropped)
 598                         if(d_vert_f < 0.15*BS)
 599                                 min_distance_f = d_horiz_f;
 600                 }*/
 601                 v3s16 new_sneak_node = m_sneak_node;
 602                 for(s16 x=-1; x<=1; x++)
 603                 for(s16 z=-1; z<=1; z++)
 604                 {
 605                         v3s16 p = pos_i_bottom + v3s16(x,0,z);
 606                         v3f pf = intToFloat(p, BS);
 607                         v2f node_p2df(pf.X, pf.Z);
 608                         f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
 609                         f32 max_axis_distance_f = MYMAX(
 610                                         fabs(player_p2df.X-node_p2df.X),
 611                                         fabs(player_p2df.Y-node_p2df.Y));
 612
 613                         if(distance_f > min_distance_f ||
 614                                         max_axis_distance_f > 0.5*BS + sneak_max + 0.1*BS)
 615                                 continue;
 616
 617                         try{
 618                                 // The node to be sneaked on has to be walkable
 619                                 if(content_walkable(map.getNode(p).d) == false)
 620                                         continue;
 621                                 // And the node above it has to be nonwalkable
 622                                 if(content_walkable(map.getNode(p+v3s16(0,1,0)).d) == true)
 623                                         continue;
 624                         }
 625                         catch(InvalidPositionException &e)
 626                         {
 627                                 continue;
 628                         }
 629
 630                         min_distance_f = distance_f;
 631                         new_sneak_node = p;
 632                 }
 633
 634                 bool sneak_node_found = (min_distance_f < 100000.0*BS*0.9);
 635
 636                 if(control.sneak && m_sneak_node_exists)
 637                 {
 638                         if(sneak_node_found)
 639                                 m_sneak_node = new_sneak_node;
 640                 }
 641                 else
 642                 {
 643                         m_sneak_node = new_sneak_node;
 644                         m_sneak_node_exists = sneak_node_found;
 645                 }
 646
 647                 /*
 648                         If sneaking, the player's collision box can be in air, so
 649                         this has to be set explicitly
 650                 */
 651                 if(sneak_node_found && control.sneak)
 652                         touching_ground = true;
 653         }
 654
 655         /*
 656                 Set new position
 657         */
 658         setPosition(position);
 659 }
 660
 661 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d)
 662 {
 663         move(dtime, map, pos_max_d, NULL);
 664 }
 665
 666 void LocalPlayer::applyControl(float dtime)
 667 {
 668         // Clear stuff
 669         swimming_up = false;
 670
 671         // Random constants
 672         f32 walk_acceleration = 4.0 * BS;
 673         f32 walkspeed_max = 4.0 * BS;
 674
 675         setPitch(control.pitch);
 676         setYaw(control.yaw);
 677
 678         v3f move_direction = v3f(0,0,1);
 679         move_direction.rotateXZBy(getYaw());
 680
 681         v3f speed = v3f(0,0,0);
 682
 683         bool free_move = g_settings.getBool("free_move");
 684         bool fast_move = g_settings.getBool("fast_move");
 685         bool continuous_forward = g_settings.getBool("continuous_forward");
 686
 687         if(free_move)
 688         {
 689                 v3f speed = getSpeed();
 690                 speed.Y = 0;
 691                 setSpeed(speed);
 692         }
 693
 694         // Whether superspeed mode is used or not
 695         bool superspeed = false;
 696
 697         // If free movement and fast movement, always move fast
 698         if(free_move && fast_move)
 699                 superspeed = true;
 700
 701         // Auxiliary button 1 (E)
 702         if(control.aux1)
 703         {
 704                 if(free_move)
 705                 {
 706                         // In free movement mode, aux1 descends
 707                         v3f speed = getSpeed();
 708                         if(fast_move)
 709                                 speed.Y = -20*BS;
 710                         else
 711                                 speed.Y = -walkspeed_max;
 712                         setSpeed(speed);
 713                 }
 714                 else
 715                 {
 716                         // If not free movement but fast is allowed, aux1 is
 717                         // "Turbo button"
 718                         if(fast_move)
 719                                 superspeed = true;
 720                 }
 721         }
 722
 723         if(continuous_forward)
 724                 speed += move_direction;
 725
 726         if(control.up)
 727         {
 728                 if(continuous_forward)
 729                         superspeed = true;
 730                 else
 731                         speed += move_direction;
 732         }
 733         if(control.down)
 734         {
 735                 speed -= move_direction;
 736         }
 737         if(control.left)
 738         {
 739                 speed += move_direction.crossProduct(v3f(0,1,0));
 740         }
 741         if(control.right)
 742         {
 743                 speed += move_direction.crossProduct(v3f(0,-1,0));
 744         }
 745         if(control.jump)
 746         {
 747                 if(free_move)
 748                 {
 749                         v3f speed = getSpeed();
 750                         if(fast_move)
 751                                 speed.Y = 20*BS;
 752                         else
 753                                 speed.Y = walkspeed_max;
 754                         setSpeed(speed);
 755                 }
 756                 else if(touching_ground)
 757                 {
 758                         v3f speed = getSpeed();
 759                         /*
 760                                 NOTE: The d value in move() affects jump height by
 761                                 raising the height at which the jump speed is kept
 762                                 at its starting value
 763                         */
 764                         speed.Y = 6.5*BS;
 765                         setSpeed(speed);
 766                 }
 767                 // Use the oscillating value for getting out of water
 768                 // (so that the player doesn't fly on the surface)
 769                 else if(in_water)
 770                 {
 771                         v3f speed = getSpeed();
 772                         speed.Y = 1.5*BS;
 773                         setSpeed(speed);
 774                         swimming_up = true;
 775                 }
 776         }
 777
 778         // The speed of the player (Y is ignored)
 779         if(superspeed)
 780                 speed = speed.normalize() * walkspeed_max * 5.0;
 781         else if(control.sneak)
 782                 speed = speed.normalize() * walkspeed_max / 3.0;
 783         else
 784                 speed = speed.normalize() * walkspeed_max;
 785
 786         f32 inc = walk_acceleration * BS * dtime;
 787
 788         // Faster acceleration if fast and free movement
 789         if(free_move && fast_move)
 790                 inc = walk_acceleration * BS * dtime * 10;
 791
 792         // Accelerate to target speed with maximum increment
 793         accelerate(speed, inc);
 794 }
 795 #endif
 796