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00012 #include "stdafx.h"
00013 #include "clear_map.h"
00014 #include "landscape.h"
00015 #include "tree_map.h"
00016 #include "viewport_func.h"
00017 #include "command_func.h"
00018 #include "economy_func.h"
00019 #include "town.h"
00020 #include "genworld.h"
00021 #include "transparency.h"
00022 #include "clear_func.h"
00023 #include "company_func.h"
00024 #include "sound_func.h"
00025 #include "water_map.h"
00026 #include "water.h"
00027 #include "landscape_type.h"
00028 #include "company_base.h"
00029 #include "core/random_func.hpp"
00030 #include "newgrf_generic.h"
00031
00032 #include "table/strings.h"
00033 #include "table/sprites.h"
00034 #include "table/tree_land.h"
00035 #include "table/clear_land.h"
00036
00042 enum TreePlacer {
00043 TP_NONE,
00044 TP_ORIGINAL,
00045 TP_IMPROVED,
00046 };
00047
00049 enum ExtraTreePlacement {
00050 ETP_NONE,
00051 ETP_RAINFOREST,
00052 ETP_ALL,
00053 };
00054
00056 byte _trees_tick_ctr;
00057
00058 static const uint16 DEFAULT_TREE_STEPS = 1000;
00059 static const uint16 DEFAULT_RAINFOREST_TREE_STEPS = 15000;
00060 static const uint16 EDITOR_TREE_DIV = 5;
00061
00070 static bool CanPlantTreesOnTile(TileIndex tile, bool allow_desert)
00071 {
00072 switch (GetTileType(tile)) {
00073 case MP_WATER:
00074 return !IsBridgeAbove(tile) && IsCoast(tile) && !IsSlopeWithOneCornerRaised(GetTileSlope(tile));
00075
00076 case MP_CLEAR:
00077 return !IsBridgeAbove(tile) && !IsClearGround(tile, CLEAR_FIELDS) && GetRawClearGround(tile) != CLEAR_ROCKS &&
00078 (allow_desert || !IsClearGround(tile, CLEAR_DESERT));
00079
00080 default: return false;
00081 }
00082 }
00083
00095 static void PlantTreesOnTile(TileIndex tile, TreeType treetype, uint count, uint growth)
00096 {
00097 assert(treetype != TREE_INVALID);
00098 assert(CanPlantTreesOnTile(tile, true));
00099
00100 TreeGround ground;
00101 uint density = 3;
00102
00103 switch (GetTileType(tile)) {
00104 case MP_WATER:
00105 ground = TREE_GROUND_SHORE;
00106 break;
00107
00108 case MP_CLEAR:
00109 switch (GetClearGround(tile)) {
00110 case CLEAR_GRASS: ground = TREE_GROUND_GRASS; break;
00111 case CLEAR_ROUGH: ground = TREE_GROUND_ROUGH; break;
00112 case CLEAR_SNOW: ground = GetRawClearGround(tile) == CLEAR_ROUGH ? TREE_GROUND_ROUGH_SNOW : TREE_GROUND_SNOW_DESERT; break;
00113 default: ground = TREE_GROUND_SNOW_DESERT; break;
00114 }
00115 if (GetClearGround(tile) != CLEAR_ROUGH) density = GetClearDensity(tile);
00116 break;
00117
00118 default: NOT_REACHED();
00119 }
00120
00121 MakeTree(tile, treetype, count, growth, ground, density);
00122 }
00123
00135 static TreeType GetRandomTreeType(TileIndex tile, uint seed)
00136 {
00137 switch (_settings_game.game_creation.landscape) {
00138 case LT_TEMPERATE:
00139 return (TreeType)(seed * TREE_COUNT_TEMPERATE / 256 + TREE_TEMPERATE);
00140
00141 case LT_ARCTIC:
00142 return (TreeType)(seed * TREE_COUNT_SUB_ARCTIC / 256 + TREE_SUB_ARCTIC);
00143
00144 case LT_TROPIC:
00145 switch (GetTropicZone(tile)) {
00146 case TROPICZONE_NORMAL: return (TreeType)(seed * TREE_COUNT_SUB_TROPICAL / 256 + TREE_SUB_TROPICAL);
00147 case TROPICZONE_DESERT: return (TreeType)((seed > 12) ? TREE_INVALID : TREE_CACTUS);
00148 default: return (TreeType)(seed * TREE_COUNT_RAINFOREST / 256 + TREE_RAINFOREST);
00149 }
00150
00151 default:
00152 return (TreeType)(seed * TREE_COUNT_TOYLAND / 256 + TREE_TOYLAND);
00153 }
00154 }
00155
00165 static void PlaceTree(TileIndex tile, uint32 r)
00166 {
00167 TreeType tree = GetRandomTreeType(tile, GB(r, 24, 8));
00168
00169 if (tree != TREE_INVALID) {
00170 PlantTreesOnTile(tile, tree, GB(r, 22, 2), min(GB(r, 16, 3), 6));
00171
00172
00173 TreeGround ground = GetTreeGround(tile);
00174 if (ground != TREE_GROUND_SNOW_DESERT && ground != TREE_GROUND_ROUGH_SNOW && ground != TREE_GROUND_SHORE) {
00175 SetTreeGroundDensity(tile, (TreeGround)GB(r, 28, 1), 3);
00176 }
00177
00178
00179 SetTreeCounter(tile, (TreeGround)GB(r, 24, 4));
00180 }
00181 }
00182
00189 static void PlaceTreeGroups(uint num_groups)
00190 {
00191 do {
00192 TileIndex center_tile = RandomTile();
00193
00194 for (uint i = 0; i < DEFAULT_TREE_STEPS; i++) {
00195 uint32 r = Random();
00196 int x = GB(r, 0, 5) - 16;
00197 int y = GB(r, 8, 5) - 16;
00198 uint dist = abs(x) + abs(y);
00199 TileIndex cur_tile = TileAddWrap(center_tile, x, y);
00200
00201 IncreaseGeneratingWorldProgress(GWP_TREE);
00202
00203 if (cur_tile != INVALID_TILE && dist <= 13 && CanPlantTreesOnTile(cur_tile, true)) {
00204 PlaceTree(cur_tile, r);
00205 }
00206 }
00207
00208 } while (--num_groups);
00209 }
00210
00220 static void PlaceTreeAtSameHeight(TileIndex tile, int height)
00221 {
00222 for (uint i = 0; i < DEFAULT_TREE_STEPS; i++) {
00223 uint32 r = Random();
00224 int x = GB(r, 0, 5) - 16;
00225 int y = GB(r, 8, 5) - 16;
00226 TileIndex cur_tile = TileAddWrap(tile, x, y);
00227 if (cur_tile == INVALID_TILE) continue;
00228
00229
00230 if (abs(x) + abs(y) > 16) continue;
00231
00232
00233 if (!CanPlantTreesOnTile(cur_tile, true)) continue;
00234
00235
00236 if (Delta(GetTileZ(cur_tile), height) > 2) continue;
00237
00238
00239 PlaceTree(cur_tile, r);
00240 break;
00241 }
00242 }
00243
00249 void PlaceTreesRandomly()
00250 {
00251 int i, j, ht;
00252
00253 i = ScaleByMapSize(DEFAULT_TREE_STEPS);
00254 if (_game_mode == GM_EDITOR) i /= EDITOR_TREE_DIV;
00255 do {
00256 uint32 r = Random();
00257 TileIndex tile = RandomTileSeed(r);
00258
00259 IncreaseGeneratingWorldProgress(GWP_TREE);
00260
00261 if (CanPlantTreesOnTile(tile, true)) {
00262 PlaceTree(tile, r);
00263 if (_settings_game.game_creation.tree_placer != TP_IMPROVED) continue;
00264
00265
00266
00267
00268 ht = GetTileZ(tile);
00269
00270 j = GetTileZ(tile) * 2;
00271
00272 if (_settings_game.game_creation.landscape == LT_ARCTIC && ht > GetSnowLine()) j *= 3;
00273 while (j--) {
00274 PlaceTreeAtSameHeight(tile, ht);
00275 }
00276 }
00277 } while (--i);
00278
00279
00280 if (_settings_game.game_creation.landscape == LT_TROPIC) {
00281 i = ScaleByMapSize(DEFAULT_RAINFOREST_TREE_STEPS);
00282 if (_game_mode == GM_EDITOR) i /= EDITOR_TREE_DIV;
00283
00284 do {
00285 uint32 r = Random();
00286 TileIndex tile = RandomTileSeed(r);
00287
00288 IncreaseGeneratingWorldProgress(GWP_TREE);
00289
00290 if (GetTropicZone(tile) == TROPICZONE_RAINFOREST && CanPlantTreesOnTile(tile, false)) {
00291 PlaceTree(tile, r);
00292 }
00293 } while (--i);
00294 }
00295 }
00296
00303 void GenerateTrees()
00304 {
00305 uint i, total;
00306
00307 if (_settings_game.game_creation.tree_placer == TP_NONE) return;
00308
00309 switch (_settings_game.game_creation.tree_placer) {
00310 case TP_ORIGINAL: i = _settings_game.game_creation.landscape == LT_ARCTIC ? 15 : 6; break;
00311 case TP_IMPROVED: i = _settings_game.game_creation.landscape == LT_ARCTIC ? 4 : 2; break;
00312 default: NOT_REACHED();
00313 }
00314
00315 total = ScaleByMapSize(DEFAULT_TREE_STEPS);
00316 if (_settings_game.game_creation.landscape == LT_TROPIC) total += ScaleByMapSize(DEFAULT_RAINFOREST_TREE_STEPS);
00317 total *= i;
00318 uint num_groups = (_settings_game.game_creation.landscape != LT_TOYLAND) ? ScaleByMapSize(GB(Random(), 0, 5) + 25) : 0;
00319 total += num_groups * DEFAULT_TREE_STEPS;
00320 SetGeneratingWorldProgress(GWP_TREE, total);
00321
00322 if (num_groups != 0) PlaceTreeGroups(num_groups);
00323
00324 for (; i != 0; i--) {
00325 PlaceTreesRandomly();
00326 }
00327 }
00328
00338 CommandCost CmdPlantTree(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00339 {
00340 StringID msg = INVALID_STRING_ID;
00341 CommandCost cost(EXPENSES_OTHER);
00342 const byte tree_to_plant = GB(p1, 0, 8);
00343
00344 if (p2 >= MapSize()) return CMD_ERROR;
00345
00346 if (tree_to_plant != TREE_INVALID && !IsInsideBS(tree_to_plant, _tree_base_by_landscape[_settings_game.game_creation.landscape], _tree_count_by_landscape[_settings_game.game_creation.landscape])) return CMD_ERROR;
00347
00348 TileArea ta(tile, p2);
00349 TILE_AREA_LOOP(tile, ta) {
00350 switch (GetTileType(tile)) {
00351 case MP_TREES:
00352
00353 if (_game_mode != GM_EDITOR && GetTreeCount(tile) == 4) {
00354 msg = STR_ERROR_TREE_ALREADY_HERE;
00355 continue;
00356 }
00357
00358 if (flags & DC_EXEC) {
00359 AddTreeCount(tile, 1);
00360 MarkTileDirtyByTile(tile);
00361 }
00362
00363 cost.AddCost(_price[PR_BUILD_TREES] * 2);
00364 break;
00365
00366 case MP_WATER:
00367 if (!IsCoast(tile) || IsSlopeWithOneCornerRaised(GetTileSlope(tile))) {
00368 msg = STR_ERROR_CAN_T_BUILD_ON_WATER;
00369 continue;
00370 }
00371
00372 case MP_CLEAR: {
00373 if (IsBridgeAbove(tile)) {
00374 msg = STR_ERROR_SITE_UNSUITABLE;
00375 continue;
00376 }
00377
00378 TreeType treetype = (TreeType)tree_to_plant;
00379
00380 if (_settings_game.game_creation.landscape == LT_TROPIC && treetype != TREE_INVALID && (
00381
00382 (treetype == TREE_CACTUS && GetTropicZone(tile) != TROPICZONE_DESERT) ||
00383
00384 (IsInsideMM(treetype, TREE_RAINFOREST, TREE_CACTUS) && GetTropicZone(tile) != TROPICZONE_RAINFOREST && _game_mode != GM_EDITOR) ||
00385
00386 (IsInsideMM(treetype, TREE_SUB_TROPICAL, TREE_TOYLAND) && GetTropicZone(tile) != TROPICZONE_NORMAL))) {
00387 msg = STR_ERROR_TREE_WRONG_TERRAIN_FOR_TREE_TYPE;
00388 continue;
00389 }
00390
00391 if (IsTileType(tile, MP_CLEAR)) {
00392
00393 switch (GetRawClearGround(tile)) {
00394 case CLEAR_FIELDS:
00395 case CLEAR_ROCKS: {
00396 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00397 if (ret.Failed()) return ret;
00398 cost.AddCost(ret);
00399 break;
00400 }
00401
00402 default: break;
00403 }
00404 }
00405
00406 if (_game_mode != GM_EDITOR && Company::IsValidID(_current_company)) {
00407 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
00408 if (t != NULL) ChangeTownRating(t, RATING_TREE_UP_STEP, RATING_TREE_MAXIMUM, flags);
00409 }
00410
00411 if (flags & DC_EXEC) {
00412 if (treetype == TREE_INVALID) {
00413 treetype = GetRandomTreeType(tile, GB(Random(), 24, 8));
00414 if (treetype == TREE_INVALID) treetype = TREE_CACTUS;
00415 }
00416
00417
00418 PlantTreesOnTile(tile, treetype, 0, _game_mode == GM_EDITOR ? 3 : 0);
00419 MarkTileDirtyByTile(tile);
00420
00421
00422 if (_game_mode == GM_EDITOR && IsInsideMM(treetype, TREE_RAINFOREST, TREE_CACTUS)) {
00423 SetTropicZone(tile, TROPICZONE_RAINFOREST);
00424 }
00425 }
00426 cost.AddCost(_price[PR_BUILD_TREES]);
00427 break;
00428 }
00429
00430 default:
00431 msg = STR_ERROR_SITE_UNSUITABLE;
00432 break;
00433 }
00434 }
00435
00436 if (cost.GetCost() == 0) {
00437 return_cmd_error(msg);
00438 } else {
00439 return cost;
00440 }
00441 }
00442
00443 struct TreeListEnt : PalSpriteID {
00444 byte x, y;
00445 };
00446
00447 static void DrawTile_Trees(TileInfo *ti)
00448 {
00449 switch (GetTreeGround(ti->tile)) {
00450 case TREE_GROUND_SHORE: DrawShoreTile(ti->tileh); break;
00451 case TREE_GROUND_GRASS: DrawClearLandTile(ti, GetTreeDensity(ti->tile)); break;
00452 case TREE_GROUND_ROUGH: DrawHillyLandTile(ti); break;
00453 default: DrawGroundSprite(_clear_land_sprites_snow_desert[GetTreeDensity(ti->tile)] + SlopeToSpriteOffset(ti->tileh), PAL_NONE); break;
00454 }
00455
00456
00457 if (IsInvisibilitySet(TO_TREES)) return;
00458
00459 uint tmp = CountBits(ti->tile + ti->x + ti->y);
00460 uint index = GB(tmp, 0, 2) + (GetTreeType(ti->tile) << 2);
00461
00462
00463 if ((GetTreeGround(ti->tile) == TREE_GROUND_SNOW_DESERT || GetTreeGround(ti->tile) == TREE_GROUND_ROUGH_SNOW) &&
00464 GetTreeDensity(ti->tile) >= 2 &&
00465 IsInsideMM(index, TREE_SUB_ARCTIC << 2, TREE_RAINFOREST << 2)) {
00466 index += 164 - (TREE_SUB_ARCTIC << 2);
00467 }
00468
00469 assert(index < lengthof(_tree_layout_sprite));
00470
00471 const PalSpriteID *s = _tree_layout_sprite[index];
00472 const TreePos *d = _tree_layout_xy[GB(tmp, 2, 2)];
00473
00474
00475 StartSpriteCombine();
00476
00477 TreeListEnt te[4];
00478
00479
00480 uint trees = GetTreeCount(ti->tile);
00481
00482 for (uint i = 0; i < trees; i++) {
00483 SpriteID sprite = s[0].sprite + (i == trees - 1 ? GetTreeGrowth(ti->tile) : 3);
00484 PaletteID pal = s[0].pal;
00485
00486 te[i].sprite = sprite;
00487 te[i].pal = pal;
00488 te[i].x = d->x;
00489 te[i].y = d->y;
00490 s++;
00491 d++;
00492 }
00493
00494
00495 int z = ti->z + GetSlopeMaxPixelZ(ti->tileh) / 2;
00496
00497 for (; trees > 0; trees--) {
00498 uint min = te[0].x + te[0].y;
00499 uint mi = 0;
00500
00501 for (uint i = 1; i < trees; i++) {
00502 if ((uint)(te[i].x + te[i].y) < min) {
00503 min = te[i].x + te[i].y;
00504 mi = i;
00505 }
00506 }
00507
00508 AddSortableSpriteToDraw(te[mi].sprite, 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);
00509
00510
00511 te[mi] = te[trees - 1];
00512 }
00513
00514 EndSpriteCombine();
00515 }
00516
00517
00518 static int GetSlopePixelZ_Trees(TileIndex tile, uint x, uint y)
00519 {
00520 int z;
00521 Slope tileh = GetTilePixelSlope(tile, &z);
00522
00523 return z + GetPartialPixelZ(x & 0xF, y & 0xF, tileh);
00524 }
00525
00526 static Foundation GetFoundation_Trees(TileIndex tile, Slope tileh)
00527 {
00528 return FOUNDATION_NONE;
00529 }
00530
00531 static CommandCost ClearTile_Trees(TileIndex tile, DoCommandFlag flags)
00532 {
00533 uint num;
00534
00535 if (Company::IsValidID(_current_company)) {
00536 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
00537 if (t != NULL) ChangeTownRating(t, RATING_TREE_DOWN_STEP, RATING_TREE_MINIMUM, flags);
00538 }
00539
00540 num = GetTreeCount(tile);
00541 if (IsInsideMM(GetTreeType(tile), TREE_RAINFOREST, TREE_CACTUS)) num *= 4;
00542
00543 if (flags & DC_EXEC) DoClearSquare(tile);
00544
00545 return CommandCost(EXPENSES_CONSTRUCTION, num * _price[PR_CLEAR_TREES]);
00546 }
00547
00548 static void GetTileDesc_Trees(TileIndex tile, TileDesc *td)
00549 {
00550 TreeType tt = GetTreeType(tile);
00551
00552 if (IsInsideMM(tt, TREE_RAINFOREST, TREE_CACTUS)) {
00553 td->str = STR_LAI_TREE_NAME_RAINFOREST;
00554 } else {
00555 td->str = tt == TREE_CACTUS ? STR_LAI_TREE_NAME_CACTUS_PLANTS : STR_LAI_TREE_NAME_TREES;
00556 }
00557
00558 td->owner[0] = GetTileOwner(tile);
00559 }
00560
00561 static void TileLoopTreesDesert(TileIndex tile)
00562 {
00563 switch (GetTropicZone(tile)) {
00564 case TROPICZONE_DESERT:
00565 if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT) {
00566 SetTreeGroundDensity(tile, TREE_GROUND_SNOW_DESERT, 3);
00567 MarkTileDirtyByTile(tile);
00568 }
00569 break;
00570
00571 case TROPICZONE_RAINFOREST: {
00572 static const SoundFx forest_sounds[] = {
00573 SND_42_LOON_BIRD,
00574 SND_43_LION,
00575 SND_44_MONKEYS,
00576 SND_48_DISTANT_BIRD
00577 };
00578 uint32 r = Random();
00579
00580 if (Chance16I(1, 200, r)) SndPlayTileFx(forest_sounds[GB(r, 16, 2)], tile);
00581 break;
00582 }
00583
00584 default: break;
00585 }
00586 }
00587
00588 static void TileLoopTreesAlps(TileIndex tile)
00589 {
00590 int k = GetTileZ(tile) - GetSnowLine() + 1;
00591
00592 if (k < 0) {
00593 switch (GetTreeGround(tile)) {
00594 case TREE_GROUND_SNOW_DESERT: SetTreeGroundDensity(tile, TREE_GROUND_GRASS, 3); break;
00595 case TREE_GROUND_ROUGH_SNOW: SetTreeGroundDensity(tile, TREE_GROUND_ROUGH, 3); break;
00596 default: return;
00597 }
00598 } else {
00599 uint density = min<uint>(k, 3);
00600
00601 if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT && GetTreeGround(tile) != TREE_GROUND_ROUGH_SNOW) {
00602 TreeGround tg = GetTreeGround(tile) == TREE_GROUND_ROUGH ? TREE_GROUND_ROUGH_SNOW : TREE_GROUND_SNOW_DESERT;
00603 SetTreeGroundDensity(tile, tg, density);
00604 } else if (GetTreeDensity(tile) != density) {
00605 SetTreeGroundDensity(tile, GetTreeGround(tile), density);
00606 } else {
00607 if (GetTreeDensity(tile) == 3) {
00608 uint32 r = Random();
00609 if (Chance16I(1, 200, r)) {
00610 SndPlayTileFx((r & 0x80000000) ? SND_39_HEAVY_WIND : SND_34_WIND, tile);
00611 }
00612 }
00613 return;
00614 }
00615 }
00616 MarkTileDirtyByTile(tile);
00617 }
00618
00619 static void TileLoop_Trees(TileIndex tile)
00620 {
00621 if (GetTreeGround(tile) == TREE_GROUND_SHORE) {
00622 TileLoop_Water(tile);
00623 } else {
00624 switch (_settings_game.game_creation.landscape) {
00625 case LT_TROPIC: TileLoopTreesDesert(tile); break;
00626 case LT_ARCTIC: TileLoopTreesAlps(tile); break;
00627 }
00628 }
00629
00630 AmbientSoundEffect(tile);
00631
00632 uint treeCounter = GetTreeCounter(tile);
00633
00634
00635 if ((treeCounter & 7) == 7 && GetTreeGround(tile) == TREE_GROUND_GRASS) {
00636 uint density = GetTreeDensity(tile);
00637 if (density < 3) {
00638 SetTreeGroundDensity(tile, TREE_GROUND_GRASS, density + 1);
00639 MarkTileDirtyByTile(tile);
00640 }
00641 }
00642 if (GetTreeCounter(tile) < 15) {
00643 AddTreeCounter(tile, 1);
00644 return;
00645 }
00646 SetTreeCounter(tile, 0);
00647
00648 switch (GetTreeGrowth(tile)) {
00649 case 3:
00650 if (_settings_game.game_creation.landscape == LT_TROPIC &&
00651 GetTreeType(tile) != TREE_CACTUS &&
00652 GetTropicZone(tile) == TROPICZONE_DESERT) {
00653 AddTreeGrowth(tile, 1);
00654 } else {
00655 switch (GB(Random(), 0, 3)) {
00656 case 0:
00657 AddTreeGrowth(tile, 1);
00658 break;
00659
00660 case 1:
00661 if (GetTreeCount(tile) < 4) {
00662 AddTreeCount(tile, 1);
00663 SetTreeGrowth(tile, 0);
00664 break;
00665 }
00666
00667
00668 case 2: {
00669
00670 if ((_settings_game.game_creation.landscape == LT_TROPIC && GetTropicZone(tile) == TROPICZONE_RAINFOREST) ?
00671 _settings_game.construction.extra_tree_placement == ETP_NONE :
00672 _settings_game.construction.extra_tree_placement != ETP_ALL) {
00673 break;
00674 }
00675
00676 TreeType treetype = GetTreeType(tile);
00677
00678 tile += TileOffsByDir((Direction)(Random() & 7));
00679
00680
00681 if (!CanPlantTreesOnTile(tile, false)) return;
00682
00683
00684 if (IsTileType(tile, MP_CLEAR) && GetClearGround(tile) == CLEAR_GRASS && GetClearDensity(tile) != 3) return;
00685
00686 PlantTreesOnTile(tile, treetype, 0, 0);
00687
00688 break;
00689 }
00690
00691 default:
00692 return;
00693 }
00694 }
00695 break;
00696
00697 case 6:
00698 if (GetTreeCount(tile) > 1) {
00699
00700 AddTreeCount(tile, -1);
00701 SetTreeGrowth(tile, 3);
00702 } else {
00703
00704 switch (GetTreeGround(tile)) {
00705 case TREE_GROUND_SHORE: MakeShore(tile); break;
00706 case TREE_GROUND_GRASS: MakeClear(tile, CLEAR_GRASS, GetTreeDensity(tile)); break;
00707 case TREE_GROUND_ROUGH: MakeClear(tile, CLEAR_ROUGH, 3); break;
00708 case TREE_GROUND_ROUGH_SNOW: {
00709 uint density = GetTreeDensity(tile);
00710 MakeClear(tile, CLEAR_ROUGH, 3);
00711 MakeSnow(tile, density);
00712 break;
00713 }
00714 default:
00715 if (_settings_game.game_creation.landscape == LT_TROPIC) {
00716 MakeClear(tile, CLEAR_DESERT, GetTreeDensity(tile));
00717 } else {
00718 uint density = GetTreeDensity(tile);
00719 MakeClear(tile, CLEAR_GRASS, 3);
00720 MakeSnow(tile, density);
00721 }
00722 break;
00723 }
00724 }
00725 break;
00726
00727 default:
00728 AddTreeGrowth(tile, 1);
00729 break;
00730 }
00731
00732 MarkTileDirtyByTile(tile);
00733 }
00734
00735 void OnTick_Trees()
00736 {
00737
00738 if (_settings_game.construction.extra_tree_placement == ETP_NONE) return;
00739
00740 uint32 r;
00741 TileIndex tile;
00742 TreeType tree;
00743
00744
00745 if (_settings_game.game_creation.landscape == LT_TROPIC &&
00746 (r = Random(), tile = RandomTileSeed(r), GetTropicZone(tile) == TROPICZONE_RAINFOREST) &&
00747 CanPlantTreesOnTile(tile, false) &&
00748 (tree = GetRandomTreeType(tile, GB(r, 24, 8))) != TREE_INVALID) {
00749 PlantTreesOnTile(tile, tree, 0, 0);
00750 }
00751
00752
00753 if (--_trees_tick_ctr != 0 || _settings_game.construction.extra_tree_placement != ETP_ALL) return;
00754
00755
00756 r = Random();
00757 tile = RandomTileSeed(r);
00758 if (CanPlantTreesOnTile(tile, false) && (tree = GetRandomTreeType(tile, GB(r, 24, 8))) != TREE_INVALID) {
00759 PlantTreesOnTile(tile, tree, 0, 0);
00760 }
00761 }
00762
00763 static TrackStatus GetTileTrackStatus_Trees(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00764 {
00765 return 0;
00766 }
00767
00768 static void ChangeTileOwner_Trees(TileIndex tile, Owner old_owner, Owner new_owner)
00769 {
00770
00771 }
00772
00773 void InitializeTrees()
00774 {
00775 _trees_tick_ctr = 0;
00776 }
00777
00778 static CommandCost TerraformTile_Trees(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
00779 {
00780 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00781 }
00782
00783
00784 extern const TileTypeProcs _tile_type_trees_procs = {
00785 DrawTile_Trees,
00786 GetSlopePixelZ_Trees,
00787 ClearTile_Trees,
00788 NULL,
00789 GetTileDesc_Trees,
00790 GetTileTrackStatus_Trees,
00791 NULL,
00792 NULL,
00793 TileLoop_Trees,
00794 ChangeTileOwner_Trees,
00795 NULL,
00796 NULL,
00797 GetFoundation_Trees,
00798 TerraformTile_Trees,
00799 };