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 "main.h" // For g_settings
  29 #include "settings.h"
  30 #include "nodedef.h"
  31 #include "collision.h"
  32 #include "environment.h"
  33 #include "gamedef.h"
  34 #include "event.h"
  35
  36 Player::Player(IGameDef *gamedef):
  37         touching_ground(false),
  38         in_water(false),
  39         in_water_stable(false),
  40         is_climbing(false),
  41         swimming_up(false),
  42         inventory(gamedef->idef()),
  43         inventory_backup(NULL),
  44         hp(20),
  45         peer_id(PEER_ID_INEXISTENT),
  46 // protected
  47         m_gamedef(gamedef),
  48         m_pitch(0),
  49         m_yaw(0),
  50         m_speed(0,0,0),
  51         m_position(0,0,0)
  52 {
  53         updateName("<not set>");
  54         resetInventory();
  55 }
  56
  57 Player::~Player()
  58 {
  59         delete inventory_backup;
  60 }
  61
  62 void Player::resetInventory()
  63 {
  64         inventory.clear();
  65         inventory.addList("main", PLAYER_INVENTORY_SIZE);
  66         inventory.addList("craft", 9);
  67         inventory.addList("craftpreview", 1);
  68         inventory.addList("craftresult", 1);
  69 }
  70
  71 // Y direction is ignored
  72 void Player::accelerate(v3f target_speed, f32 max_increase)
  73 {
  74         v3f d_wanted = target_speed - m_speed;
  75         d_wanted.Y = 0;
  76         f32 dl_wanted = d_wanted.getLength();
  77         f32 dl = dl_wanted;
  78         if(dl > max_increase)
  79                 dl = max_increase;
  80
  81         v3f d = d_wanted.normalize() * dl;
  82
  83         m_speed.X += d.X;
  84         m_speed.Z += d.Z;
  85         //m_speed += d;
  86
  87 #if 0 // old code
  88         if(m_speed.X < target_speed.X - max_increase)
  89                 m_speed.X += max_increase;
  90         else if(m_speed.X > target_speed.X + max_increase)
  91                 m_speed.X -= max_increase;
  92         else if(m_speed.X < target_speed.X)
  93                 m_speed.X = target_speed.X;
  94         else if(m_speed.X > target_speed.X)
  95                 m_speed.X = target_speed.X;
  96
  97         if(m_speed.Z < target_speed.Z - max_increase)
  98                 m_speed.Z += max_increase;
  99         else if(m_speed.Z > target_speed.Z + max_increase)
 100                 m_speed.Z -= max_increase;
 101         else if(m_speed.Z < target_speed.Z)
 102                 m_speed.Z = target_speed.Z;
 103         else if(m_speed.Z > target_speed.Z)
 104                 m_speed.Z = target_speed.Z;
 105 #endif
 106 }
 107
 108 v3s16 Player::getLightPosition() const
 109 {
 110         return floatToInt(m_position + v3f(0,BS+BS/2,0), BS);
 111 }
 112
 113 void Player::serialize(std::ostream &os)
 114 {
 115         // Utilize a Settings object for storing values
 116         Settings args;
 117         args.setS32("version", 1);
 118         args.set("name", m_name);
 119         //args.set("password", m_password);
 120         args.setFloat("pitch", m_pitch);
 121         args.setFloat("yaw", m_yaw);
 122         args.setV3F("position", m_position);
 123         args.setS32("hp", hp);
 124
 125         args.writeLines(os);
 126
 127         os<<"PlayerArgsEnd\n";
 128
 129         // If actual inventory is backed up due to creative mode, save it
 130         // instead of the dummy creative mode inventory
 131         if(inventory_backup)
 132                 inventory_backup->serialize(os);
 133         else
 134                 inventory.serialize(os);
 135 }
 136
 137 void Player::deSerialize(std::istream &is)
 138 {
 139         Settings args;
 140
 141         for(;;)
 142         {
 143                 if(is.eof())
 144                         throw SerializationError
 145                                         ("Player::deSerialize(): PlayerArgsEnd not found");
 146                 std::string line;
 147                 std::getline(is, line);
 148                 std::string trimmedline = trim(line);
 149                 if(trimmedline == "PlayerArgsEnd")
 150                         break;
 151                 args.parseConfigLine(line);
 152         }
 153
 154         //args.getS32("version"); // Version field value not used
 155         std::string name = args.get("name");
 156         updateName(name.c_str());
 157         setPitch(args.getFloat("pitch"));
 158         setYaw(args.getFloat("yaw"));
 159         setPosition(args.getV3F("position"));
 160         try{
 161                 hp = args.getS32("hp");
 162         }catch(SettingNotFoundException &e){
 163                 hp = 20;
 164         }
 165
 166         inventory.deSerialize(is);
 167
 168         if(inventory.getList("craftpreview") == NULL)
 169         {
 170                 // Convert players without craftpreview
 171                 inventory.addList("craftpreview", 1);
 172
 173                 bool craftresult_is_preview = true;
 174                 if(args.exists("craftresult_is_preview"))
 175                         craftresult_is_preview = args.getBool("craftresult_is_preview");
 176                 if(craftresult_is_preview)
 177                 {
 178                         // Clear craftresult
 179                         inventory.getList("craftresult")->changeItem(0, ItemStack());
 180                 }
 181         }
 182 }
 183
 184 #ifndef SERVER
 185 /*
 186         LocalPlayer
 187 */
 188
 189 LocalPlayer::LocalPlayer(IGameDef *gamedef):
 190         Player(gamedef),
 191         m_sneak_node(32767,32767,32767),
 192         m_sneak_node_exists(false)
 193 {
 194         // Initialize hp to 0, so that no hearts will be shown if server
 195         // doesn't support health points
 196         hp = 0;
 197 }
 198
 199 LocalPlayer::~LocalPlayer()
 200 {
 201 }
 202
 203 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d,
 204                 core::list<CollisionInfo> *collision_info)
 205 {
 206         INodeDefManager *nodemgr = m_gamedef->ndef();
 207
 208         v3f position = getPosition();
 209         v3f oldpos = position;
 210         v3s16 oldpos_i = floatToInt(oldpos, BS);
 211
 212         v3f old_speed = m_speed;
 213
 214         /*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
 215                         <<oldpos_i.Z<<")"<<std::endl;*/
 216
 217         /*
 218                 Calculate new position
 219         */
 220         position += m_speed * dtime;
 221
 222         // Skip collision detection if a special movement mode is used
 223         bool free_move = g_settings->getBool("free_move");
 224         if(free_move)
 225         {
 226                 setPosition(position);
 227                 return;
 228         }
 229
 230         /*
 231                 Collision detection
 232         */
 233
 234         // Player position in nodes
 235         v3s16 pos_i = floatToInt(position, BS);
 236
 237         /*
 238                 Check if player is in water (the oscillating value)
 239         */
 240         try{
 241                 // If in water, the threshold of coming out is at higher y
 242                 if(in_water)
 243                 {
 244                         v3s16 pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
 245                         in_water = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
 246                 }
 247                 // If not in water, the threshold of going in is at lower y
 248                 else
 249                 {
 250                         v3s16 pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
 251                         in_water = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
 252                 }
 253         }
 254         catch(InvalidPositionException &e)
 255         {
 256                 in_water = false;
 257         }
 258
 259         /*
 260                 Check if player is in water (the stable value)
 261         */
 262         try{
 263                 v3s16 pp = floatToInt(position + v3f(0,0,0), BS);
 264                 in_water_stable = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
 265         }
 266         catch(InvalidPositionException &e)
 267         {
 268                 in_water_stable = false;
 269         }
 270
 271         /*
 272                 Check if player is climbing
 273         */
 274
 275         try {
 276                 v3s16 pp = floatToInt(position + v3f(0,0.5*BS,0), BS);
 277                 v3s16 pp2 = floatToInt(position + v3f(0,-0.2*BS,0), BS);
 278                 is_climbing = ((nodemgr->get(map.getNode(pp).getContent()).climbable ||
 279                 nodemgr->get(map.getNode(pp2).getContent()).climbable) && !free_move);
 280         }
 281         catch(InvalidPositionException &e)
 282         {
 283                 is_climbing = false;
 284         }
 285
 286         /*
 287                 Collision uncertainty radius
 288                 Make it a bit larger than the maximum distance of movement
 289         */
 290         //f32 d = pos_max_d * 1.1;
 291         // A fairly large value in here makes moving smoother
 292         f32 d = 0.15*BS;
 293
 294         // This should always apply, otherwise there are glitches
 295         assert(d > pos_max_d);
 296
 297         float player_radius = BS*0.30;
 298         float player_height = BS*1.55;
 299
 300         // Maximum distance over border for sneaking
 301         f32 sneak_max = BS*0.4;
 302
 303         /*
 304                 If sneaking, player has larger collision radius to keep from
 305                 falling
 306         */
 307         /*if(control.sneak)
 308                 player_radius = sneak_max + d*1.1;*/
 309
 310         /*
 311                 If sneaking, keep in range from the last walked node and don't
 312                 fall off from it
 313         */
 314         if(control.sneak && m_sneak_node_exists)
 315         {
 316                 f32 maxd = 0.5*BS + sneak_max;
 317                 v3f lwn_f = intToFloat(m_sneak_node, BS);
 318                 position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
 319                 position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
 320
 321                 f32 min_y = lwn_f.Y + 0.5*BS;
 322                 if(position.Y < min_y)
 323                 {
 324                         position.Y = min_y;
 325
 326                         //v3f old_speed = m_speed;
 327
 328                         if(m_speed.Y < 0)
 329                                 m_speed.Y = 0;
 330
 331                         /*if(collision_info)
 332                         {
 333                                 // Report fall collision
 334                                 if(old_speed.Y < m_speed.Y - 0.1)
 335                                 {
 336                                         CollisionInfo info;
 337                                         info.t = COLLISION_FALL;
 338                                         info.speed = m_speed.Y - old_speed.Y;
 339                                         collision_info->push_back(info);
 340                                 }
 341                         }*/
 342                 }
 343         }
 344
 345         /*
 346                 Calculate player collision box (new and old)
 347         */
 348         core::aabbox3d<f32> playerbox(
 349                 position.X - player_radius,
 350                 position.Y - 0.0,
 351                 position.Z - player_radius,
 352                 position.X + player_radius,
 353                 position.Y + player_height,
 354                 position.Z + player_radius
 355         );
 356         core::aabbox3d<f32> playerbox_old(
 357                 oldpos.X - player_radius,
 358                 oldpos.Y - 0.0,
 359                 oldpos.Z - player_radius,
 360                 oldpos.X + player_radius,
 361                 oldpos.Y + player_height,
 362                 oldpos.Z + player_radius
 363         );
 364
 365         /*
 366                 If the player's feet touch the topside of any node, this is
 367                 set to true.
 368
 369                 Player is allowed to jump when this is true.
 370         */
 371         bool touching_ground_was = touching_ground;
 372         touching_ground = false;
 373
 374         /*std::cout<<"Checking collisions for ("
 375                         <<oldpos_i.X<<","<<oldpos_i.Y<<","<<oldpos_i.Z
 376                         <<") -> ("
 377                         <<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z
 378                         <<"):"<<std::endl;*/
 379
 380         bool standing_on_unloaded = false;
 381
 382         /*
 383                 Go through every node around the player
 384         */
 385         for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++)
 386         for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++)
 387         for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++)
 388         {
 389                 bool is_unloaded = false;
 390                 try{
 391                         // Player collides into walkable nodes
 392                         if(nodemgr->get(map.getNode(v3s16(x,y,z))).walkable == false)
 393                                 continue;
 394                 }
 395                 catch(InvalidPositionException &e)
 396                 {
 397                         is_unloaded = true;
 398                         // Doing nothing here will block the player from
 399                         // walking over map borders
 400                 }
 401
 402                 core::aabbox3d<f32> nodebox = getNodeBox(v3s16(x,y,z), BS);
 403
 404                 /*
 405                         See if the player is touching ground.
 406
 407                         Player touches ground if player's minimum Y is near node's
 408                         maximum Y and player's X-Z-area overlaps with the node's
 409                         X-Z-area.
 410
 411                         Use 0.15*BS so that it is easier to get on a node.
 412                 */
 413                 if(
 414                                 //fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
 415                                 fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < 0.15*BS
 416                                 && nodebox.MaxEdge.X-d > playerbox.MinEdge.X
 417                                 && nodebox.MinEdge.X+d < playerbox.MaxEdge.X
 418                                 && nodebox.MaxEdge.Z-d > playerbox.MinEdge.Z
 419                                 && nodebox.MinEdge.Z+d < playerbox.MaxEdge.Z
 420                 ){
 421                         touching_ground = true;
 422                         if(is_unloaded)
 423                                 standing_on_unloaded = true;
 424                 }
 425
 426                 // If player doesn't intersect with node, ignore node.
 427                 if(playerbox.intersectsWithBox(nodebox) == false)
 428                         continue;
 429
 430                 /*
 431                         Go through every axis
 432                 */
 433                 v3f dirs[3] = {
 434                         v3f(0,0,1), // back-front
 435                         v3f(0,1,0), // top-bottom
 436                         v3f(1,0,0), // right-left
 437                 };
 438                 for(u16 i=0; i<3; i++)
 439                 {
 440                         /*
 441                                 Calculate values along the axis
 442                         */
 443                         f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
 444                         f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
 445                         f32 playermax = playerbox.MaxEdge.dotProduct(dirs[i]);
 446                         f32 playermin = playerbox.MinEdge.dotProduct(dirs[i]);
 447                         f32 playermax_old = playerbox_old.MaxEdge.dotProduct(dirs[i]);
 448                         f32 playermin_old = playerbox_old.MinEdge.dotProduct(dirs[i]);
 449
 450                         /*
 451                                 Check collision for the axis.
 452                                 Collision happens when player is going through a surface.
 453                         */
 454                         /*f32 neg_d = d;
 455                         f32 pos_d = d;
 456                         // Make it easier to get on top of a node
 457                         if(i == 1)
 458                                 neg_d = 0.15*BS;
 459                         bool negative_axis_collides =
 460                                 (nodemax > playermin && nodemax <= playermin_old + neg_d
 461                                         && m_speed.dotProduct(dirs[i]) < 0);
 462                         bool positive_axis_collides =
 463                                 (nodemin < playermax && nodemin >= playermax_old - pos_d
 464                                         && m_speed.dotProduct(dirs[i]) > 0);*/
 465                         bool negative_axis_collides =
 466                                 (nodemax > playermin && nodemax <= playermin_old + d
 467                                         && m_speed.dotProduct(dirs[i]) < 0);
 468                         bool positive_axis_collides =
 469                                 (nodemin < playermax && nodemin >= playermax_old - d
 470                                         && m_speed.dotProduct(dirs[i]) > 0);
 471                         bool main_axis_collides =
 472                                         negative_axis_collides || positive_axis_collides;
 473
 474                         /*
 475                                 Check overlap of player and node in other axes
 476                         */
 477                         bool other_axes_overlap = true;
 478                         for(u16 j=0; j<3; j++)
 479                         {
 480                                 if(j == i)
 481                                         continue;
 482                                 f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[j]);
 483                                 f32 nodemin = nodebox.MinEdge.dotProduct(dirs[j]);
 484                                 f32 playermax = playerbox.MaxEdge.dotProduct(dirs[j]);
 485                                 f32 playermin = playerbox.MinEdge.dotProduct(dirs[j]);
 486                                 if(!(nodemax - d > playermin && nodemin + d < playermax))
 487                                 {
 488                                         other_axes_overlap = false;
 489                                         break;
 490                                 }
 491                         }
 492
 493                         /*
 494                                 If this is a collision, revert the position in the main
 495                                 direction.
 496                         */
 497                         if(other_axes_overlap && main_axis_collides)
 498                         {
 499                                 //v3f old_speed = m_speed;
 500
 501                                 m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
 502                                 position -= position.dotProduct(dirs[i]) * dirs[i];
 503                                 position += oldpos.dotProduct(dirs[i]) * dirs[i];
 504
 505                                 /*if(collision_info)
 506                                 {
 507                                         // Report fall collision
 508                                         if(old_speed.Y < m_speed.Y - 0.1)
 509                                         {
 510                                                 CollisionInfo info;
 511                                                 info.t = COLLISION_FALL;
 512                                                 info.speed = m_speed.Y - old_speed.Y;
 513                                                 collision_info->push_back(info);
 514                                         }
 515                                 }*/
 516                         }
 517
 518                 }
 519         } // xyz
 520
 521         /*
 522                 Check the nodes under the player to see from which node the
 523                 player is sneaking from, if any.
 524         */
 525         {
 526                 v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0), BS);
 527                 v2f player_p2df(position.X, position.Z);
 528                 f32 min_distance_f = 100000.0*BS;
 529                 // If already seeking from some node, compare to it.
 530                 /*if(m_sneak_node_exists)
 531                 {
 532                         v3f sneaknode_pf = intToFloat(m_sneak_node, BS);
 533                         v2f sneaknode_p2df(sneaknode_pf.X, sneaknode_pf.Z);
 534                         f32 d_horiz_f = player_p2df.getDistanceFrom(sneaknode_p2df);
 535                         f32 d_vert_f = fabs(sneaknode_pf.Y + BS*0.5 - position.Y);
 536                         // Ignore if player is not on the same level (likely dropped)
 537                         if(d_vert_f < 0.15*BS)
 538                                 min_distance_f = d_horiz_f;
 539                 }*/
 540                 v3s16 new_sneak_node = m_sneak_node;
 541                 for(s16 x=-1; x<=1; x++)
 542                 for(s16 z=-1; z<=1; z++)
 543                 {
 544                         v3s16 p = pos_i_bottom + v3s16(x,0,z);
 545                         v3f pf = intToFloat(p, BS);
 546                         v2f node_p2df(pf.X, pf.Z);
 547                         f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
 548                         f32 max_axis_distance_f = MYMAX(
 549                                         fabs(player_p2df.X-node_p2df.X),
 550                                         fabs(player_p2df.Y-node_p2df.Y));
 551
 552                         if(distance_f > min_distance_f ||
 553                                         max_axis_distance_f > 0.5*BS + sneak_max + 0.1*BS)
 554                                 continue;
 555
 556                         try{
 557                                 // The node to be sneaked on has to be walkable
 558                                 if(nodemgr->get(map.getNode(p)).walkable == false)
 559                                         continue;
 560                                 // And the node above it has to be nonwalkable
 561                                 if(nodemgr->get(map.getNode(p+v3s16(0,1,0))).walkable == true)
 562                                         continue;
 563                         }
 564                         catch(InvalidPositionException &e)
 565                         {
 566                                 continue;
 567                         }
 568
 569                         min_distance_f = distance_f;
 570                         new_sneak_node = p;
 571                 }
 572
 573                 bool sneak_node_found = (min_distance_f < 100000.0*BS*0.9);
 574
 575                 if(control.sneak && m_sneak_node_exists)
 576                 {
 577                         if(sneak_node_found)
 578                                 m_sneak_node = new_sneak_node;
 579                 }
 580                 else
 581                 {
 582                         m_sneak_node = new_sneak_node;
 583                         m_sneak_node_exists = sneak_node_found;
 584                 }
 585
 586                 /*
 587                         If sneaking, the player's collision box can be in air, so
 588                         this has to be set explicitly
 589                 */
 590                 if(sneak_node_found && control.sneak)
 591                         touching_ground = true;
 592         }
 593
 594         /*
 595                 Set new position
 596         */
 597         setPosition(position);
 598
 599         /*
 600                 Report collisions
 601         */
 602         if(collision_info)
 603         {
 604                 // Report fall collision
 605                 if(old_speed.Y < m_speed.Y - 0.1 && !standing_on_unloaded)
 606                 {
 607                         CollisionInfo info;
 608                         info.t = COLLISION_FALL;
 609                         info.speed = m_speed.Y - old_speed.Y;
 610                         collision_info->push_back(info);
 611                 }
 612         }
 613
 614         if(!touching_ground_was && touching_ground){
 615                 MtEvent *e = new SimpleTriggerEvent("PlayerRegainGround");
 616                 m_gamedef->event()->put(e);
 617         }
 618 }
 619
 620 void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d)
 621 {
 622         move(dtime, map, pos_max_d, NULL);
 623 }
 624
 625 void LocalPlayer::applyControl(float dtime)
 626 {
 627         // Clear stuff
 628         swimming_up = false;
 629
 630         // Random constants
 631         f32 walk_acceleration = 4.0 * BS;
 632         f32 walkspeed_max = 4.0 * BS;
 633
 634         setPitch(control.pitch);
 635         setYaw(control.yaw);
 636
 637         v3f move_direction = v3f(0,0,1);
 638         move_direction.rotateXZBy(getYaw());
 639
 640         v3f speed = v3f(0,0,0);
 641
 642         bool free_move = g_settings->getBool("free_move");
 643         bool fast_move = g_settings->getBool("fast_move");
 644         bool continuous_forward = g_settings->getBool("continuous_forward");
 645
 646         if(free_move || is_climbing)
 647         {
 648                 v3f speed = getSpeed();
 649                 speed.Y = 0;
 650                 setSpeed(speed);
 651         }
 652
 653         // Whether superspeed mode is used or not
 654         bool superspeed = false;
 655
 656         // If free movement and fast movement, always move fast
 657         if(free_move && fast_move)
 658                 superspeed = true;
 659
 660         // Auxiliary button 1 (E)
 661         if(control.aux1)
 662         {
 663                 if(free_move)
 664                 {
 665                         // In free movement mode, aux1 descends
 666                         v3f speed = getSpeed();
 667                         if(fast_move)
 668                                 speed.Y = -20*BS;
 669                         else
 670                                 speed.Y = -walkspeed_max;
 671                         setSpeed(speed);
 672                 }
 673                 else if(is_climbing)
 674                 {
 675                         v3f speed = getSpeed();
 676                         speed.Y = -3*BS;
 677                         setSpeed(speed);
 678                 }
 679                 else
 680                 {
 681                         // If not free movement but fast is allowed, aux1 is
 682                         // "Turbo button"
 683                         if(fast_move)
 684                                 superspeed = true;
 685                 }
 686         }
 687
 688         if(continuous_forward)
 689                 speed += move_direction;
 690
 691         if(control.up)
 692         {
 693                 if(continuous_forward)
 694                         superspeed = true;
 695                 else
 696                         speed += move_direction;
 697         }
 698         if(control.down)
 699         {
 700                 speed -= move_direction;
 701         }
 702         if(control.left)
 703         {
 704                 speed += move_direction.crossProduct(v3f(0,1,0));
 705         }
 706         if(control.right)
 707         {
 708                 speed += move_direction.crossProduct(v3f(0,-1,0));
 709         }
 710         if(control.jump)
 711         {
 712                 if(free_move)
 713                 {
 714                         v3f speed = getSpeed();
 715                         if(fast_move)
 716                                 speed.Y = 20*BS;
 717                         else
 718                                 speed.Y = walkspeed_max;
 719                         setSpeed(speed);
 720                 }
 721                 else if(touching_ground)
 722                 {
 723                         /*
 724                                 NOTE: The d value in move() affects jump height by
 725                                 raising the height at which the jump speed is kept
 726                                 at its starting value
 727                         */
 728                         v3f speed = getSpeed();
 729                         if(speed.Y >= -0.5*BS)
 730                         {
 731                                 speed.Y = 6.5*BS;
 732                                 setSpeed(speed);
 733
 734                                 MtEvent *e = new SimpleTriggerEvent("PlayerJump");
 735                                 m_gamedef->event()->put(e);
 736                         }
 737                 }
 738                 // Use the oscillating value for getting out of water
 739                 // (so that the player doesn't fly on the surface)
 740                 else if(in_water)
 741                 {
 742                         v3f speed = getSpeed();
 743                         speed.Y = 1.5*BS;
 744                         setSpeed(speed);
 745                         swimming_up = true;
 746                 }
 747                 else if(is_climbing)
 748                 {
 749                         v3f speed = getSpeed();
 750                         speed.Y = 3*BS;
 751                         setSpeed(speed);
 752                 }
 753         }
 754
 755         // The speed of the player (Y is ignored)
 756         if(superspeed)
 757                 speed = speed.normalize() * walkspeed_max * 5.0;
 758         else if(control.sneak)
 759                 speed = speed.normalize() * walkspeed_max / 3.0;
 760         else
 761                 speed = speed.normalize() * walkspeed_max;
 762
 763         f32 inc = walk_acceleration * BS * dtime;
 764
 765         // Faster acceleration if fast and free movement
 766         if(free_move && fast_move)
 767                 inc = walk_acceleration * BS * dtime * 10;
 768
 769         // Accelerate to target speed with maximum increment
 770         accelerate(speed, inc);
 771 }
 772
 773 v3s16 LocalPlayer::getStandingNodePos()
 774 {
 775         if(m_sneak_node_exists)
 776                 return m_sneak_node;
 777         return floatToInt(getPosition(), BS);
 778 }
 779
 780 #endif
 781