00001
00002
00005 #include "stdafx.h"
00006 #include "openttd.h"
00007 #include "clear_map.h"
00008 #include "landscape.h"
00009 #include "tree_map.h"
00010 #include "viewport_func.h"
00011 #include "command_func.h"
00012 #include "economy_func.h"
00013 #include "town.h"
00014 #include "variables.h"
00015 #include "genworld.h"
00016 #include "transparency.h"
00017 #include "functions.h"
00018 #include "company_func.h"
00019 #include "sound_func.h"
00020 #include "water_map.h"
00021 #include "water.h"
00022 #include "landscape_type.h"
00023 #include "company_base.h"
00024
00025 #include "table/strings.h"
00026 #include "table/sprites.h"
00027 #include "table/tree_land.h"
00028
00034 enum TreePlacer {
00035 TP_NONE,
00036 TP_ORIGINAL,
00037 TP_IMPROVED,
00038 };
00039
00048 static bool CanPlantTreesOnTile(TileIndex tile, bool allow_desert)
00049 {
00050 switch (GetTileType(tile)) {
00051 case MP_WATER:
00052 return !IsBridgeAbove(tile) && IsCoast(tile) && !IsSlopeWithOneCornerRaised(GetTileSlope(tile, NULL));
00053
00054 case MP_CLEAR:
00055 return !IsBridgeAbove(tile) && !IsClearGround(tile, CLEAR_FIELDS) && !IsClearGround(tile, CLEAR_ROCKS) &&
00056 (allow_desert || !IsClearGround(tile, CLEAR_DESERT));
00057
00058 default: return false;
00059 }
00060 }
00061
00073 static void PlantTreesOnTile(TileIndex tile, TreeType treetype, uint count, uint growth)
00074 {
00075 assert(treetype != TREE_INVALID);
00076 assert(CanPlantTreesOnTile(tile, true));
00077
00078 TreeGround ground;
00079 uint density = 3;
00080
00081 switch (GetTileType(tile)) {
00082 case MP_WATER:
00083 ground = TREE_GROUND_SHORE;
00084 break;
00085
00086 case MP_CLEAR:
00087 switch (GetClearGround(tile)) {
00088 case CLEAR_GRASS: ground = TREE_GROUND_GRASS; density = GetClearDensity(tile); break;
00089 case CLEAR_ROUGH: ground = TREE_GROUND_ROUGH; break;
00090 default: ground = TREE_GROUND_SNOW_DESERT; density = GetClearDensity(tile); break;
00091 }
00092 break;
00093
00094 default: NOT_REACHED();
00095 }
00096
00097 MakeTree(tile, treetype, count, growth, ground, density);
00098 }
00099
00111 static TreeType GetRandomTreeType(TileIndex tile, uint seed)
00112 {
00113 switch (_settings_game.game_creation.landscape) {
00114 case LT_TEMPERATE:
00115 return (TreeType)(seed * TREE_COUNT_TEMPERATE / 256 + TREE_TEMPERATE);
00116
00117 case LT_ARCTIC:
00118 return (TreeType)(seed * TREE_COUNT_SUB_ARCTIC / 256 + TREE_SUB_ARCTIC);
00119
00120 case LT_TROPIC:
00121 switch (GetTropicZone(tile)) {
00122 case TROPICZONE_NORMAL: return (TreeType)(seed * TREE_COUNT_SUB_TROPICAL / 256 + TREE_SUB_TROPICAL);
00123 case TROPICZONE_DESERT: return (TreeType)((seed > 12) ? TREE_INVALID : TREE_CACTUS);
00124 default: return (TreeType)(seed * TREE_COUNT_RAINFOREST / 256 + TREE_RAINFOREST);
00125 }
00126
00127 default:
00128 return (TreeType)(seed * TREE_COUNT_TOYLAND / 256 + TREE_TOYLAND);
00129 }
00130 }
00131
00141 static void PlaceTree(TileIndex tile, uint32 r)
00142 {
00143 TreeType tree = GetRandomTreeType(tile, GB(r, 24, 8));
00144
00145 if (tree != TREE_INVALID) {
00146 PlantTreesOnTile(tile, tree, GB(r, 22, 2), min(GB(r, 16, 3), 6));
00147
00148
00149 TreeGround ground = GetTreeGround(tile);
00150 if (ground != TREE_GROUND_SNOW_DESERT && ground != TREE_GROUND_SHORE) {
00151 SetTreeGroundDensity(tile, (TreeGround)GB(r, 28, 1), 3);
00152 }
00153
00154
00155 SetTreeCounter(tile, (TreeGround)GB(r, 24, 4));
00156 }
00157 }
00158
00168 static void DoPlaceMoreTrees(TileIndex tile)
00169 {
00170 uint i;
00171
00172 for (i = 0; i < 1000; i++) {
00173 uint32 r = Random();
00174 int x = GB(r, 0, 5) - 16;
00175 int y = GB(r, 8, 5) - 16;
00176 uint dist = abs(x) + abs(y);
00177 TileIndex cur_tile = TILE_MASK(tile + TileDiffXY(x, y));
00178
00179 if (dist <= 13 && CanPlantTreesOnTile(cur_tile, true)) {
00180 PlaceTree(cur_tile, r);
00181 }
00182 }
00183 }
00184
00190 static void PlaceMoreTrees()
00191 {
00192 uint i = ScaleByMapSize(GB(Random(), 0, 5) + 25);
00193 do {
00194 DoPlaceMoreTrees(RandomTile());
00195 } while (--i);
00196 }
00197
00207 static void PlaceTreeAtSameHeight(TileIndex tile, uint height)
00208 {
00209 uint i;
00210
00211 for (i = 0; i < 1000; i++) {
00212 uint32 r = Random();
00213 int x = GB(r, 0, 5) - 16;
00214 int y = GB(r, 8, 5) - 16;
00215 TileIndex cur_tile = TILE_MASK(tile + TileDiffXY(x, y));
00216
00217
00218 if (abs(x) + abs(y) > 16) continue;
00219
00220
00221 if (!CanPlantTreesOnTile(cur_tile, true)) continue;
00222
00223
00224 if (Delta(GetTileZ(cur_tile), height) > 2) continue;
00225
00226
00227 PlaceTree(cur_tile, r);
00228 break;
00229 }
00230 }
00231
00237 void PlaceTreesRandomly()
00238 {
00239 uint i, j, ht;
00240
00241 i = ScaleByMapSize(1000);
00242 do {
00243 uint32 r = Random();
00244 TileIndex tile = RandomTileSeed(r);
00245
00246 IncreaseGeneratingWorldProgress(GWP_TREE);
00247
00248 if (CanPlantTreesOnTile(tile, true)) {
00249 PlaceTree(tile, r);
00250 if (_settings_game.game_creation.tree_placer != TP_IMPROVED) continue;
00251
00252
00253
00254
00255 ht = GetTileZ(tile);
00256
00257 j = GetTileZ(tile) / TILE_HEIGHT * 2;
00258 while (j--) {
00259
00260 if (_settings_game.game_creation.landscape == LT_ARCTIC && ht > GetSnowLine()) {
00261 PlaceTreeAtSameHeight(tile, ht);
00262 PlaceTreeAtSameHeight(tile, ht);
00263 };
00264
00265 PlaceTreeAtSameHeight(tile, ht);
00266 }
00267 }
00268 } while (--i);
00269
00270
00271 if (_settings_game.game_creation.landscape == LT_TROPIC) {
00272 i = ScaleByMapSize(15000);
00273
00274 do {
00275 uint32 r = Random();
00276 TileIndex tile = RandomTileSeed(r);
00277
00278 IncreaseGeneratingWorldProgress(GWP_TREE);
00279
00280 if (GetTropicZone(tile) == TROPICZONE_RAINFOREST && CanPlantTreesOnTile(tile, false)) {
00281 PlaceTree(tile, r);
00282 }
00283 } while (--i);
00284 }
00285 }
00286
00293 void GenerateTrees()
00294 {
00295 uint i, total;
00296
00297 if (_settings_game.game_creation.tree_placer == TP_NONE) return;
00298
00299 if (_settings_game.game_creation.landscape != LT_TOYLAND) PlaceMoreTrees();
00300
00301 switch (_settings_game.game_creation.tree_placer) {
00302 case TP_ORIGINAL: i = _settings_game.game_creation.landscape == LT_ARCTIC ? 15 : 6; break;
00303 case TP_IMPROVED: i = _settings_game.game_creation.landscape == LT_ARCTIC ? 4 : 2; break;
00304 default: NOT_REACHED(); return;
00305 }
00306
00307 total = ScaleByMapSize(1000);
00308 if (_settings_game.game_creation.landscape == LT_TROPIC) total += ScaleByMapSize(15000);
00309 total *= i;
00310 SetGeneratingWorldProgress(GWP_TREE, total);
00311
00312 for (; i != 0; i--) {
00313 PlaceTreesRandomly();
00314 }
00315 }
00316
00323 CommandCost CmdPlantTree(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00324 {
00325 StringID msg = INVALID_STRING_ID;
00326 CommandCost cost(EXPENSES_OTHER);
00327 int ex;
00328 int ey;
00329 int sx, sy, x, y;
00330
00331 if (p2 >= MapSize()) return CMD_ERROR;
00332
00333 if (p1 != UINT_MAX && p1 - _tree_base_by_landscape[_settings_game.game_creation.landscape] >= _tree_count_by_landscape[_settings_game.game_creation.landscape]) return CMD_ERROR;
00334
00335
00336 ex = TileX(tile);
00337 ey = TileY(tile);
00338 sx = TileX(p2);
00339 sy = TileY(p2);
00340 if (ex < sx) Swap(ex, sx);
00341 if (ey < sy) Swap(ey, sy);
00342
00343 for (x = sx; x <= ex; x++) {
00344 for (y = sy; y <= ey; y++) {
00345 TileIndex tile = TileXY(x, y);
00346
00347 switch (GetTileType(tile)) {
00348 case MP_TREES:
00349
00350 if (_game_mode != GM_EDITOR && GetTreeCount(tile) == 4) {
00351 msg = STR_2803_TREE_ALREADY_HERE;
00352 continue;
00353 }
00354
00355 if (flags & DC_EXEC) {
00356 AddTreeCount(tile, 1);
00357 MarkTileDirtyByTile(tile);
00358 }
00359
00360 cost.AddCost(_price.build_trees * 2);
00361 break;
00362
00363 case MP_WATER:
00364 if (!IsCoast(tile) || IsSlopeWithOneCornerRaised(GetTileSlope(tile, NULL))) {
00365 msg = STR_3807_CAN_T_BUILD_ON_WATER;
00366 continue;
00367 }
00368
00369 case MP_CLEAR:
00370 if (IsBridgeAbove(tile)) {
00371 msg = STR_2804_SITE_UNSUITABLE;
00372 continue;
00373 }
00374
00375 if (IsTileType(tile, MP_CLEAR)) {
00376
00377 switch (GetClearGround(tile)) {
00378 case CLEAR_FIELDS:
00379 case CLEAR_ROCKS: {
00380 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00381 if (CmdFailed(ret)) return ret;
00382 cost.AddCost(ret);
00383 break;
00384 }
00385
00386 default: break;
00387 }
00388 }
00389
00390 if (_game_mode != GM_EDITOR && IsValidCompanyID(_current_company)) {
00391 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
00392 if (t != NULL) ChangeTownRating(t, RATING_TREE_UP_STEP, RATING_TREE_MAXIMUM, flags);
00393 }
00394
00395 if (flags & DC_EXEC) {
00396 TreeType treetype;
00397
00398 treetype = (TreeType)p1;
00399 if (treetype == TREE_INVALID) {
00400 treetype = GetRandomTreeType(tile, GB(Random(), 24, 8));
00401 if (treetype == TREE_INVALID) treetype = TREE_CACTUS;
00402 }
00403
00404
00405 PlantTreesOnTile(tile, treetype, 0, _game_mode == GM_EDITOR ? 3 : 0);
00406 MarkTileDirtyByTile(tile);
00407
00408
00409 if (_game_mode == GM_EDITOR && IsInsideMM(treetype, TREE_RAINFOREST, TREE_CACTUS))
00410 SetTropicZone(tile, TROPICZONE_RAINFOREST);
00411 }
00412 cost.AddCost(_price.build_trees);
00413 break;
00414
00415 default:
00416 msg = STR_2804_SITE_UNSUITABLE;
00417 break;
00418 }
00419 }
00420 }
00421
00422 if (cost.GetCost() == 0) {
00423 return_cmd_error(msg);
00424 } else {
00425 return cost;
00426 }
00427 }
00428
00429 struct TreeListEnt {
00430 SpriteID image;
00431 SpriteID pal;
00432 byte x, y;
00433 };
00434
00435 static void DrawTile_Trees(TileInfo *ti)
00436 {
00437 switch (GetTreeGround(ti->tile)) {
00438 case TREE_GROUND_SHORE: DrawShoreTile(ti->tileh); break;
00439 case TREE_GROUND_GRASS: DrawClearLandTile(ti, GetTreeDensity(ti->tile)); break;
00440 case TREE_GROUND_ROUGH: DrawHillyLandTile(ti); break;
00441 default: DrawGroundSprite(_tree_sprites_1[GetTreeDensity(ti->tile)] + _tileh_to_sprite[ti->tileh], PAL_NONE); break;
00442 }
00443
00444 DrawClearLandFence(ti);
00445
00446
00447 if (IsInvisibilitySet(TO_TREES)) return;
00448
00449 uint16 tmp = ti->x;
00450
00451 tmp = ROR(tmp, 2);
00452 tmp -= ti->y;
00453 tmp = ROR(tmp, 3);
00454 tmp -= ti->x;
00455 tmp = ROR(tmp, 1);
00456 tmp += ti->y;
00457
00458 uint index = GB(tmp, 6, 2) + (GetTreeType(ti->tile) << 2);
00459
00460
00461 if (GetTreeGround(ti->tile) == TREE_GROUND_SNOW_DESERT &&
00462 GetTreeDensity(ti->tile) >= 2 &&
00463 IsInsideMM(index, TREE_SUB_ARCTIC << 2, TREE_RAINFOREST << 2)) {
00464 index += 164 - (TREE_SUB_ARCTIC << 2);
00465 }
00466
00467 assert(index < lengthof(_tree_layout_sprite));
00468
00469 const PalSpriteID *s = _tree_layout_sprite[index];
00470 const TreePos *d = _tree_layout_xy[GB(tmp, 4, 2)];
00471
00472
00473 StartSpriteCombine();
00474
00475 TreeListEnt te[4];
00476
00477
00478 uint trees = GetTreeCount(ti->tile);
00479
00480 for (uint i = 0; i < trees; i++) {
00481 SpriteID image = s[0].sprite + (i == trees - 1 ? GetTreeGrowth(ti->tile) : 3);
00482 SpriteID pal = s[0].pal;
00483
00484 te[i].image = image;
00485 te[i].pal = pal;
00486 te[i].x = d->x;
00487 te[i].y = d->y;
00488 s++;
00489 d++;
00490 }
00491
00492
00493 byte z = ti->z + GetSlopeMaxZ(ti->tileh) / 2;
00494
00495 for (; trees > 0; trees--) {
00496 uint min = te[0].x + te[0].y;
00497 uint mi = 0;
00498
00499 for (uint i = 1; i < trees; i++) {
00500 if ((uint)(te[i].x + te[i].y) < min) {
00501 min = te[i].x + te[i].y;
00502 mi = i;
00503 }
00504 }
00505
00506 AddSortableSpriteToDraw(te[mi].image, te[mi].pal, ti->x + te[mi].x, ti->y + te[mi].y, 16 - te[mi].x, 16 - te[mi].y, 0x30, z, IsTransparencySet(TO_TREES), -te[mi].x, -te[mi].y);
00507
00508
00509 te[mi] = te[trees - 1];
00510 }
00511
00512 EndSpriteCombine();
00513 }
00514
00515
00516 static uint GetSlopeZ_Trees(TileIndex tile, uint x, uint y)
00517 {
00518 uint z;
00519 Slope tileh = GetTileSlope(tile, &z);
00520
00521 return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
00522 }
00523
00524 static Foundation GetFoundation_Trees(TileIndex tile, Slope tileh)
00525 {
00526 return FOUNDATION_NONE;
00527 }
00528
00529 static CommandCost ClearTile_Trees(TileIndex tile, DoCommandFlag flags)
00530 {
00531 uint num;
00532
00533 if (IsValidCompanyID(_current_company)) {
00534 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
00535 if (t != NULL) ChangeTownRating(t, RATING_TREE_DOWN_STEP, RATING_TREE_MINIMUM, flags);
00536 }
00537
00538 num = GetTreeCount(tile);
00539 if (IsInsideMM(GetTreeType(tile), TREE_RAINFOREST, TREE_CACTUS)) num *= 4;
00540
00541 if (flags & DC_EXEC) DoClearSquare(tile);
00542
00543 return CommandCost(EXPENSES_CONSTRUCTION, num * _price.remove_trees);
00544 }
00545
00546 static void GetAcceptedCargo_Trees(TileIndex tile, AcceptedCargo ac)
00547 {
00548
00549 }
00550
00551 static void GetTileDesc_Trees(TileIndex tile, TileDesc *td)
00552 {
00553 TreeType tt = GetTreeType(tile);
00554
00555 if (IsInsideMM(tt, TREE_RAINFOREST, TREE_CACTUS)) {
00556 td->str = STR_280F_RAINFOREST;
00557 } else {
00558 td->str = tt == TREE_CACTUS ? STR_2810_CACTUS_PLANTS : STR_280E_TREES;
00559 }
00560
00561 td->owner[0] = GetTileOwner(tile);
00562 }
00563
00564 static void AnimateTile_Trees(TileIndex tile)
00565 {
00566
00567 }
00568
00569 static void TileLoopTreesDesert(TileIndex tile)
00570 {
00571 switch (GetTropicZone(tile)) {
00572 case TROPICZONE_DESERT:
00573 if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT) {
00574 SetTreeGroundDensity(tile, TREE_GROUND_SNOW_DESERT, 3);
00575 MarkTileDirtyByTile(tile);
00576 }
00577 break;
00578
00579 case TROPICZONE_RAINFOREST: {
00580 static const SoundFx forest_sounds[] = {
00581 SND_42_LOON_BIRD,
00582 SND_43_LION,
00583 SND_44_MONKEYS,
00584 SND_48_DISTANT_BIRD
00585 };
00586 uint32 r = Random();
00587
00588 if (Chance16I(1, 200, r)) SndPlayTileFx(forest_sounds[GB(r, 16, 2)], tile);
00589 break;
00590 }
00591
00592 default: break;
00593 }
00594 }
00595
00596 static void TileLoopTreesAlps(TileIndex tile)
00597 {
00598 int k = GetTileZ(tile) - GetSnowLine() + TILE_HEIGHT;
00599
00600 if (k < 0) {
00601 if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT) return;
00602 SetTreeGroundDensity(tile, TREE_GROUND_GRASS, 3);
00603 } else {
00604 uint density = min((uint)k / TILE_HEIGHT, 3);
00605
00606 if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT ||
00607 GetTreeDensity(tile) != density) {
00608 SetTreeGroundDensity(tile, TREE_GROUND_SNOW_DESERT, density);
00609 } else {
00610 if (GetTreeDensity(tile) == 3) {
00611 uint32 r = Random();
00612 if (Chance16I(1, 200, r)) {
00613 SndPlayTileFx((r & 0x80000000) ? SND_39_HEAVY_WIND : SND_34_WIND, tile);
00614 }
00615 }
00616 return;
00617 }
00618 }
00619 MarkTileDirtyByTile(tile);
00620 }
00621
00622 static void TileLoop_Trees(TileIndex tile)
00623 {
00624 if (GetTreeGround(tile) == TREE_GROUND_SHORE) {
00625 TileLoop_Water(tile);
00626 } else {
00627 switch (_settings_game.game_creation.landscape) {
00628 case LT_TROPIC: TileLoopTreesDesert(tile); break;
00629 case LT_ARCTIC: TileLoopTreesAlps(tile); break;
00630 }
00631 }
00632
00633 TileLoopClearHelper(tile);
00634
00635 uint treeCounter = GetTreeCounter(tile);
00636
00637
00638 if ((treeCounter & 7) == 7 && GetTreeGround(tile) == TREE_GROUND_GRASS) {
00639 uint density = GetTreeDensity(tile);
00640 if (density < 3) {
00641 SetTreeGroundDensity(tile, TREE_GROUND_GRASS, density + 1);
00642 MarkTileDirtyByTile(tile);
00643 }
00644 }
00645 if (GetTreeCounter(tile) < 15) {
00646 AddTreeCounter(tile, 1);
00647 return;
00648 }
00649 SetTreeCounter(tile, 0);
00650
00651 switch (GetTreeGrowth(tile)) {
00652 case 3:
00653 if (_settings_game.game_creation.landscape == LT_TROPIC &&
00654 GetTreeType(tile) != TREE_CACTUS &&
00655 GetTropicZone(tile) == TROPICZONE_DESERT) {
00656 AddTreeGrowth(tile, 1);
00657 } else {
00658 switch (GB(Random(), 0, 3)) {
00659 case 0:
00660 AddTreeGrowth(tile, 1);
00661 break;
00662
00663 case 1:
00664 if (GetTreeCount(tile) < 4) {
00665 AddTreeCount(tile, 1);
00666 SetTreeGrowth(tile, 0);
00667 break;
00668 }
00669
00670
00671 case 2: {
00672 TreeType treetype = GetTreeType(tile);
00673
00674 tile += TileOffsByDir((Direction)(Random() & 7));
00675
00676
00677 if (!CanPlantTreesOnTile(tile, false)) return;
00678
00679
00680 if (IsTileType(tile, MP_CLEAR) && GetClearGround(tile) == CLEAR_GRASS && GetClearDensity(tile) != 3) return;
00681
00682 PlantTreesOnTile(tile, treetype, 0, 0);
00683
00684 break;
00685 }
00686
00687 default:
00688 return;
00689 }
00690 }
00691 break;
00692
00693 case 6:
00694 if (GetTreeCount(tile) > 1) {
00695
00696 AddTreeCount(tile, -1);
00697 SetTreeGrowth(tile, 3);
00698 } else {
00699
00700 switch (GetTreeGround(tile)) {
00701 case TREE_GROUND_SHORE: MakeShore(tile); break;
00702 case TREE_GROUND_GRASS: MakeClear(tile, CLEAR_GRASS, GetTreeDensity(tile)); break;
00703 case TREE_GROUND_ROUGH: MakeClear(tile, CLEAR_ROUGH, 3); break;
00704 default:
00705 MakeClear(tile, _settings_game.game_creation.landscape == LT_TROPIC ? CLEAR_DESERT : CLEAR_SNOW, GetTreeDensity(tile));
00706 break;
00707 }
00708 }
00709 break;
00710
00711 default:
00712 AddTreeGrowth(tile, 1);
00713 break;
00714 }
00715
00716 MarkTileDirtyByTile(tile);
00717 }
00718
00719 void OnTick_Trees()
00720 {
00721 uint32 r;
00722 TileIndex tile;
00723 TreeType tree;
00724
00725
00726 if (_settings_game.game_creation.landscape == LT_TROPIC &&
00727 (r = Random(), tile = RandomTileSeed(r), GetTropicZone(tile) == TROPICZONE_RAINFOREST) &&
00728 CanPlantTreesOnTile(tile, false) &&
00729 (tree = GetRandomTreeType(tile, GB(r, 24, 8))) != TREE_INVALID) {
00730 PlantTreesOnTile(tile, tree, 0, 0);
00731 }
00732
00733
00734 if (--_trees_tick_ctr != 0) return;
00735
00736
00737 r = Random();
00738 tile = TILE_MASK(r);
00739 if (CanPlantTreesOnTile(tile, false) && (tree = GetRandomTreeType(tile, GB(r, 24, 8))) != TREE_INVALID) {
00740 PlantTreesOnTile(tile, tree, 0, 0);
00741 }
00742 }
00743
00744 static bool ClickTile_Trees(TileIndex tile)
00745 {
00746
00747 return false;
00748 }
00749
00750 static TrackStatus GetTileTrackStatus_Trees(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00751 {
00752 return 0;
00753 }
00754
00755 static void ChangeTileOwner_Trees(TileIndex tile, Owner old_owner, Owner new_owner)
00756 {
00757
00758 }
00759
00760 void InitializeTrees()
00761 {
00762 _trees_tick_ctr = 0;
00763 }
00764
00765 static CommandCost TerraformTile_Trees(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
00766 {
00767 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00768 }
00769
00770
00771 extern const TileTypeProcs _tile_type_trees_procs = {
00772 DrawTile_Trees,
00773 GetSlopeZ_Trees,
00774 ClearTile_Trees,
00775 GetAcceptedCargo_Trees,
00776 GetTileDesc_Trees,
00777 GetTileTrackStatus_Trees,
00778 ClickTile_Trees,
00779 AnimateTile_Trees,
00780 TileLoop_Trees,
00781 ChangeTileOwner_Trees,
00782 NULL,
00783 NULL,
00784 GetFoundation_Trees,
00785 TerraformTile_Trees,
00786 };