src/player.cpp

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