src/player.cpp

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