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                 privs = args.getU64("privs");
 148         }catch(SettingNotFoundException &e){
 149                 privs = PRIV_DEFAULT;
 150         }
 151
 152         inventory.deSerialize(is);
 153 }
 154
 155 /*
 156         RemotePlayer
 157 */
 158
 159 #ifndef SERVER
 160
 161 RemotePlayer::RemotePlayer(
 162                 scene::ISceneNode* parent,
 163                 IrrlichtDevice *device,
 164                 s32 id):
 165         scene::ISceneNode(parent, (device==NULL)?NULL:device->getSceneManager(), id),
 166         m_text(NULL)
 167 {
 168         m_box = core::aabbox3d<f32>(-BS/2,0,-BS/2,BS/2,BS*2,BS/2);
 169
 170         if(parent != NULL && device != NULL)
 171         {
 172                 // ISceneNode stores a member called SceneManager
 173                 scene::ISceneManager* mgr = SceneManager;
 174                 video::IVideoDriver* driver = mgr->getVideoDriver();
 175                 gui::IGUIEnvironment* gui = device->getGUIEnvironment();
 176
 177                 // Add a text node for showing the name
 178                 wchar_t wname[1] = {0};
 179                 m_text = mgr->addTextSceneNode(gui->getBuiltInFont(),
 180                                 wname, video::SColor(255,255,255,255), this);
 181                 m_text->setPosition(v3f(0, (f32)BS*2.1, 0));
 182
 183                 // Attach a simple mesh to the player for showing an image
 184                 scene::SMesh *mesh = new scene::SMesh();
 185                 { // Front
 186                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 187                 video::SColor c(255,255,255,255);
 188                 video::S3DVertex vertices[4] =
 189                 {
 190                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
 191                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
 192                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
 193                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
 194                 };
 195                 u16 indices[] = {0,1,2,2,3,0};
 196                 buf->append(vertices, 4, indices, 6);
 197                 // Set material
 198                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 199                 //buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 200                 buf->getMaterial().setTexture(0, driver->getTexture(porting::getDataPath("player.png").c_str()));
 201                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 202                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 203                 //buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 204                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 205                 // Add to mesh
 206                 mesh->addMeshBuffer(buf);
 207                 buf->drop();
 208                 }
 209                 { // Back
 210                 scene::IMeshBuffer *buf = new scene::SMeshBuffer();
 211                 video::SColor c(255,255,255,255);
 212                 video::S3DVertex vertices[4] =
 213                 {
 214                         video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
 215                         video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
 216                         video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
 217                         video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
 218                 };
 219                 u16 indices[] = {0,1,2,2,3,0};
 220                 buf->append(vertices, 4, indices, 6);
 221                 // Set material
 222                 buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
 223                 //buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
 224                 buf->getMaterial().setTexture(0, driver->getTexture(porting::getDataPath("player_back.png").c_str()));
 225                 buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
 226                 buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
 227                 buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 228                 // Add to mesh
 229                 mesh->addMeshBuffer(buf);
 230                 buf->drop();
 231                 }
 232                 m_node = mgr->addMeshSceneNode(mesh, this);
 233                 mesh->drop();
 234                 m_node->setPosition(v3f(0,0,0));
 235         }
 236 }
 237
 238 RemotePlayer::~RemotePlayer()
 239 {
 240         if(SceneManager != NULL)
 241                 ISceneNode::remove();
 242 }
 243
 244 void RemotePlayer::updateName(const char *name)
 245 {
 246         Player::updateName(name);
 247         if(m_text != NULL)
 248         {
 249                 wchar_t wname[PLAYERNAME_SIZE];
 250                 mbstowcs(wname, m_name, strlen(m_name)+1);
 251                 m_text->setText(wname);
 252         }
 253 }
 254
 255 void RemotePlayer::move(f32 dtime, Map &map, f32 pos_max_d)
 256 {
 257         m_pos_animation_time_counter += dtime;
 258         m_pos_animation_counter += dtime;
 259         v3f movevector = m_position - m_oldpos;
 260         f32 moveratio;
 261         if(m_pos_animation_time < 0.001)
 262                 moveratio = 1.0;
 263         else
 264                 moveratio = m_pos_animation_counter / m_pos_animation_time;
 265         if(moveratio > 1.5)
 266                 moveratio = 1.5;
 267         m_showpos = m_oldpos + movevector * moveratio;
 268
 269         ISceneNode::setPosition(m_showpos);
 270 }
 271
 272 #endif
 273
 274 #ifndef SERVER
 275 /*
 276         LocalPlayer
 277 */
 278
 279 LocalPlayer::LocalPlayer():
 280         m_sneak_node(32767,32767,32767),
 281         m_sneak_node_exists(false)
 282 {
 283         // Initialize hp to 0, so that no hearts will be shown if server
 284         // doesn't support health points
 285         hp = 0;
 286 }
 287
 288 LocalPlayer::~LocalPlayer()
 289 {
 290 }
 291
 292 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d,
 293                 core::list<CollisionInfo> *collision_info)
 294 {
 295         v3f position = getPosition();
 296         v3f oldpos = position;
 297         v3s16 oldpos_i = floatToInt(oldpos, BS);
 298
 299         /*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
 300                         <<oldpos_i.Z<<")"<<std::endl;*/
 301
 302         /*
 303                 Calculate new position
 304         */
 305         position += m_speed * dtime;
 306
 307         // Skip collision detection if a special movement mode is used
 308         bool free_move = g_settings.getBool("free_move");
 309         if(free_move)
 310         {
 311                 setPosition(position);
 312                 return;
 313         }
 314
 315         /*
 316                 Collision detection
 317         */
 318
 319         // Player position in nodes
 320         v3s16 pos_i = floatToInt(position, BS);
 321
 322         /*
 323                 Check if player is in water (the oscillating value)
 324         */
 325         try{
 326                 // If in water, the threshold of coming out is at higher y
 327                 if(in_water)
 328                 {
 329                         v3s16 pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
 330                         in_water = content_liquid(map.getNode(pp).d);
 331                 }
 332                 // If not in water, the threshold of going in is at lower y
 333                 else
 334                 {
 335                         v3s16 pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
 336                         in_water = content_liquid(map.getNode(pp).d);
 337                 }
 338         }
 339         catch(InvalidPositionException &e)
 340         {
 341                 in_water = false;
 342         }
 343
 344         /*
 345                 Check if player is in water (the stable value)
 346         */
 347         try{
 348                 v3s16 pp = floatToInt(position + v3f(0,0,0), BS);
 349                 in_water_stable = content_liquid(map.getNode(pp).d);
 350         }
 351         catch(InvalidPositionException &e)
 352         {
 353                 in_water_stable = false;
 354         }
 355
 356         /*
 357                 Collision uncertainty radius
 358                 Make it a bit larger than the maximum distance of movement
 359         */
 360         //f32 d = pos_max_d * 1.1;
 361         // A fairly large value in here makes moving smoother
 362         f32 d = 0.15*BS;
 363
 364         // This should always apply, otherwise there are glitches
 365         assert(d > pos_max_d);
 366
 367         float player_radius = BS*0.35;
 368         float player_height = BS*1.7;
 369
 370         // Maximum distance over border for sneaking
 371         f32 sneak_max = BS*0.4;
 372
 373         /*
 374                 If sneaking, player has larger collision radius to keep from
 375                 falling
 376         */
 377         /*if(control.sneak)
 378                 player_radius = sneak_max + d*1.1;*/
 379
 380         /*
 381                 If sneaking, keep in range from the last walked node and don't
 382                 fall off from it
 383         */
 384         if(control.sneak && m_sneak_node_exists)
 385         {
 386                 f32 maxd = 0.5*BS + sneak_max;
 387                 v3f lwn_f = intToFloat(m_sneak_node, BS);
 388                 position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
 389                 position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
 390
 391                 f32 min_y = lwn_f.Y + 0.5*BS;
 392                 if(position.Y < min_y)
 393                 {
 394                         position.Y = min_y;
 395                         if(m_speed.Y < 0)
 396                                 m_speed.Y = 0;
 397                 }
 398         }
 399
 400         /*
 401                 Calculate player collision box (new and old)
 402         */
 403         core::aabbox3d<f32> playerbox(
 404                 position.X - player_radius,
 405                 position.Y - 0.0,
 406                 position.Z - player_radius,
 407                 position.X + player_radius,
 408                 position.Y + player_height,
 409                 position.Z + player_radius
 410         );
 411         core::aabbox3d<f32> playerbox_old(
 412                 oldpos.X - player_radius,
 413                 oldpos.Y - 0.0,
 414                 oldpos.Z - player_radius,
 415                 oldpos.X + player_radius,
 416                 oldpos.Y + player_height,
 417                 oldpos.Z + player_radius
 418         );
 419
 420         /*
 421                 If the player's feet touch the topside of any node, this is
 422                 set to true.
 423
 424                 Player is allowed to jump when this is true.
 425         */
 426         touching_ground = false;
 427
 428         /*std::cout<<"Checking collisions for ("
 429                         <<oldpos_i.X<<","<<oldpos_i.Y<<","<<oldpos_i.Z
 430                         <<") -> ("
 431                         <<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z
 432                         <<"):"<<std::endl;*/
 433
 434         /*
 435                 Go through every node around the player
 436         */
 437         for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++)
 438         for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++)
 439         for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++)
 440         {
 441                 try{
 442                         // Player collides into walkable nodes
 443                         if(content_walkable(map.getNode(v3s16(x,y,z)).d) == false)
 444                                 continue;
 445                 }
 446                 catch(InvalidPositionException &e)
 447                 {
 448                         // Doing nothing here will block the player from
 449                         // walking over map borders
 450                 }
 451
 452                 core::aabbox3d<f32> nodebox = getNodeBox(v3s16(x,y,z), BS);
 453
 454                 /*
 455                         See if the player is touching ground.
 456
 457                         Player touches ground if player's minimum Y is near node's
 458                         maximum Y and player's X-Z-area overlaps with the node's
 459                         X-Z-area.
 460
 461                         Use 0.15*BS so that it is easier to get on a node.
 462                 */
 463                 if(
 464                                 //fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
 465                                 fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < 0.15*BS
 466                                 && nodebox.MaxEdge.X-d > playerbox.MinEdge.X
 467                                 && nodebox.MinEdge.X+d < playerbox.MaxEdge.X
 468                                 && nodebox.MaxEdge.Z-d > playerbox.MinEdge.Z
 469                                 && nodebox.MinEdge.Z+d < playerbox.MaxEdge.Z
 470                 ){
 471                         touching_ground = true;
 472                 }
 473
 474                 // If player doesn't intersect with node, ignore node.
 475                 if(playerbox.intersectsWithBox(nodebox) == false)
 476                         continue;
 477
 478                 /*
 479                         Go through every axis
 480                 */
 481                 v3f dirs[3] = {
 482                         v3f(0,0,1), // back-front
 483                         v3f(0,1,0), // top-bottom
 484                         v3f(1,0,0), // right-left
 485                 };
 486                 for(u16 i=0; i<3; i++)
 487                 {
 488                         /*
 489                                 Calculate values along the axis
 490                         */
 491                         f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
 492                         f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
 493                         f32 playermax = playerbox.MaxEdge.dotProduct(dirs[i]);
 494                         f32 playermin = playerbox.MinEdge.dotProduct(dirs[i]);
 495                         f32 playermax_old = playerbox_old.MaxEdge.dotProduct(dirs[i]);
 496                         f32 playermin_old = playerbox_old.MinEdge.dotProduct(dirs[i]);
 497
 498                         /*
 499                                 Check collision for the axis.
 500                                 Collision happens when player is going through a surface.
 501                         */
 502                         /*f32 neg_d = d;
 503                         f32 pos_d = d;
 504                         // Make it easier to get on top of a node
 505                         if(i == 1)
 506                                 neg_d = 0.15*BS;
 507                         bool negative_axis_collides =
 508                                 (nodemax > playermin && nodemax <= playermin_old + neg_d
 509                                         && m_speed.dotProduct(dirs[i]) < 0);
 510                         bool positive_axis_collides =
 511                                 (nodemin < playermax && nodemin >= playermax_old - pos_d
 512                                         && m_speed.dotProduct(dirs[i]) > 0);*/
 513                         bool negative_axis_collides =
 514                                 (nodemax > playermin && nodemax <= playermin_old + d
 515                                         && m_speed.dotProduct(dirs[i]) < 0);
 516                         bool positive_axis_collides =
 517                                 (nodemin < playermax && nodemin >= playermax_old - d
 518                                         && m_speed.dotProduct(dirs[i]) > 0);
 519                         bool main_axis_collides =
 520                                         negative_axis_collides || positive_axis_collides;
 521
 522                         /*
 523                                 Check overlap of player and node in other axes
 524                         */
 525                         bool other_axes_overlap = true;
 526                         for(u16 j=0; j<3; j++)
 527                         {
 528                                 if(j == i)
 529                                         continue;
 530                                 f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[j]);
 531                                 f32 nodemin = nodebox.MinEdge.dotProduct(dirs[j]);
 532                                 f32 playermax = playerbox.MaxEdge.dotProduct(dirs[j]);
 533                                 f32 playermin = playerbox.MinEdge.dotProduct(dirs[j]);
 534                                 if(!(nodemax - d > playermin && nodemin + d < playermax))
 535                                 {
 536                                         other_axes_overlap = false;
 537                                         break;
 538                                 }
 539                         }
 540
 541                         /*
 542                                 If this is a collision, revert the position in the main
 543                                 direction.
 544                         */
 545                         if(other_axes_overlap && main_axis_collides)
 546                         {
 547                                 v3f old_speed = m_speed;
 548
 549                                 m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
 550                                 position -= position.dotProduct(dirs[i]) * dirs[i];
 551                                 position += oldpos.dotProduct(dirs[i]) * dirs[i];
 552
 553                                 if(collision_info)
 554                                 {
 555                                         // Report fall collision
 556                                         if(old_speed.Y < m_speed.Y - 0.1)
 557                                         {
 558                                                 CollisionInfo info;
 559                                                 info.t = COLLISION_FALL;
 560                                                 info.speed = m_speed.Y - old_speed.Y;
 561                                                 collision_info->push_back(info);
 562                                         }
 563                                 }
 564                         }
 565
 566                 }
 567         } // xyz
 568
 569         /*
 570                 Check the nodes under the player to see from which node the
 571                 player is sneaking from, if any.
 572         */
 573         {
 574                 v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0), BS);
 575                 v2f player_p2df(position.X, position.Z);
 576                 f32 min_distance_f = 100000.0*BS;
 577                 // If already seeking from some node, compare to it.
 578                 /*if(m_sneak_node_exists)
 579                 {
 580                         v3f sneaknode_pf = intToFloat(m_sneak_node, BS);
 581                         v2f sneaknode_p2df(sneaknode_pf.X, sneaknode_pf.Z);
 582                         f32 d_horiz_f = player_p2df.getDistanceFrom(sneaknode_p2df);
 583                         f32 d_vert_f = fabs(sneaknode_pf.Y + BS*0.5 - position.Y);
 584                         // Ignore if player is not on the same level (likely dropped)
 585                         if(d_vert_f < 0.15*BS)
 586                                 min_distance_f = d_horiz_f;
 587                 }*/
 588                 v3s16 new_sneak_node = m_sneak_node;
 589                 for(s16 x=-1; x<=1; x++)
 590                 for(s16 z=-1; z<=1; z++)
 591                 {
 592                         v3s16 p = pos_i_bottom + v3s16(x,0,z);
 593                         v3f pf = intToFloat(p, BS);
 594                         v2f node_p2df(pf.X, pf.Z);
 595                         f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
 596                         f32 max_axis_distance_f = MYMAX(
 597                                         fabs(player_p2df.X-node_p2df.X),
 598                                         fabs(player_p2df.Y-node_p2df.Y));
 599
 600                         if(distance_f > min_distance_f ||
 601                                         max_axis_distance_f > 0.5*BS + sneak_max + 0.1*BS)
 602                                 continue;
 603
 604                         try{
 605                                 // The node to be sneaked on has to be walkable
 606                                 if(content_walkable(map.getNode(p).d) == false)
 607                                         continue;
 608                                 // And the node above it has to be nonwalkable
 609                                 if(content_walkable(map.getNode(p+v3s16(0,1,0)).d) == true)
 610                                         continue;
 611                         }
 612                         catch(InvalidPositionException &e)
 613                         {
 614                                 continue;
 615                         }
 616
 617                         min_distance_f = distance_f;
 618                         new_sneak_node = p;
 619                 }
 620
 621                 bool sneak_node_found = (min_distance_f < 100000.0*BS*0.9);
 622
 623                 if(control.sneak && m_sneak_node_exists)
 624                 {
 625                         if(sneak_node_found)
 626                                 m_sneak_node = new_sneak_node;
 627                 }
 628                 else
 629                 {
 630                         m_sneak_node = new_sneak_node;
 631                         m_sneak_node_exists = sneak_node_found;
 632                 }
 633
 634                 /*
 635                         If sneaking, the player's collision box can be in air, so
 636                         this has to be set explicitly
 637                 */
 638                 if(sneak_node_found && control.sneak)
 639                         touching_ground = true;
 640         }
 641
 642         /*
 643                 Set new position
 644         */
 645         setPosition(position);
 646 }
 647
 648 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d)
 649 {
 650         move(dtime, map, pos_max_d, NULL);
 651 }
 652
 653 void LocalPlayer::applyControl(float dtime)
 654 {
 655         // Clear stuff
 656         swimming_up = false;
 657
 658         // Random constants
 659         f32 walk_acceleration = 4.0 * BS;
 660         f32 walkspeed_max = 4.0 * BS;
 661
 662         setPitch(control.pitch);
 663         setYaw(control.yaw);
 664
 665         v3f move_direction = v3f(0,0,1);
 666         move_direction.rotateXZBy(getYaw());
 667
 668         v3f speed = v3f(0,0,0);
 669
 670         bool free_move = g_settings.getBool("free_move");
 671         bool fast_move = g_settings.getBool("fast_move");
 672         bool continuous_forward = g_settings.getBool("continuous_forward");
 673
 674         if(free_move)
 675         {
 676                 v3f speed = getSpeed();
 677                 speed.Y = 0;
 678                 setSpeed(speed);
 679         }
 680
 681         // Whether superspeed mode is used or not
 682         bool superspeed = false;
 683
 684         // If free movement and fast movement, always move fast
 685         if(free_move && fast_move)
 686                 superspeed = true;
 687
 688         // Auxiliary button 1 (E)
 689         if(control.aux1)
 690         {
 691                 if(free_move)
 692                 {
 693                         // In free movement mode, aux1 descends
 694                         v3f speed = getSpeed();
 695                         if(fast_move)
 696                                 speed.Y = -20*BS;
 697                         else
 698                                 speed.Y = -walkspeed_max;
 699                         setSpeed(speed);
 700                 }
 701                 else
 702                 {
 703                         // If not free movement but fast is allowed, aux1 is
 704                         // "Turbo button"
 705                         if(fast_move)
 706                                 superspeed = true;
 707                 }
 708         }
 709
 710         if(continuous_forward)
 711                 speed += move_direction;
 712
 713         if(control.up)
 714         {
 715                 if(continuous_forward)
 716                         superspeed = true;
 717                 else
 718                         speed += move_direction;
 719         }
 720         if(control.down)
 721         {
 722                 speed -= move_direction;
 723         }
 724         if(control.left)
 725         {
 726                 speed += move_direction.crossProduct(v3f(0,1,0));
 727         }
 728         if(control.right)
 729         {
 730                 speed += move_direction.crossProduct(v3f(0,-1,0));
 731         }
 732         if(control.jump)
 733         {
 734                 if(free_move)
 735                 {
 736                         v3f speed = getSpeed();
 737                         if(fast_move)
 738                                 speed.Y = 20*BS;
 739                         else
 740                                 speed.Y = walkspeed_max;
 741                         setSpeed(speed);
 742                 }
 743                 else if(touching_ground)
 744                 {
 745                         v3f speed = getSpeed();
 746                         /*
 747                                 NOTE: The d value in move() affects jump height by
 748                                 raising the height at which the jump speed is kept
 749                                 at its starting value
 750                         */
 751                         speed.Y = 6.5*BS;
 752                         setSpeed(speed);
 753                 }
 754                 // Use the oscillating value for getting out of water
 755                 // (so that the player doesn't fly on the surface)
 756                 else if(in_water)
 757                 {
 758                         v3f speed = getSpeed();
 759                         speed.Y = 1.5*BS;
 760                         setSpeed(speed);
 761                         swimming_up = true;
 762                 }
 763         }
 764
 765         // The speed of the player (Y is ignored)
 766         if(superspeed)
 767                 speed = speed.normalize() * walkspeed_max * 5.0;
 768         else if(control.sneak)
 769                 speed = speed.normalize() * walkspeed_max / 3.0;
 770         else
 771                 speed = speed.normalize() * walkspeed_max;
 772
 773         f32 inc = walk_acceleration * BS * dtime;
 774
 775         // Faster acceleration if fast and free movement
 776         if(free_move && fast_move)
 777                 inc = walk_acceleration * BS * dtime * 10;
 778
 779         // Accelerate to target speed with maximum increment
 780         accelerate(speed, inc);
 781 }
 782 #endif
 783