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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
00031 #include "table/strings.h"
00032 #include "table/sprites.h"
00033 #include "table/tree_land.h"
00034 #include "table/clear_land.h"
00035
00041 enum TreePlacer {
00042 TP_NONE,
00043 TP_ORIGINAL,
00044 TP_IMPROVED,
00045 };
00046
00048 enum ExtraTreePlacement {
00049 ETP_NONE,
00050 ETP_RAINFOREST,
00051 ETP_ALL,
00052 };
00053
00055 byte _trees_tick_ctr;
00056
00057 static const uint16 DEFAULT_TREE_STEPS = 1000;
00058 static const uint16 DEFAULT_RAINFOREST_TREE_STEPS = 15000;
00059 static const uint16 EDITOR_TREE_DIV = 5;
00060
00069 static bool CanPlantTreesOnTile(TileIndex tile, bool allow_desert)
00070 {
00071 switch (GetTileType(tile)) {
00072 case MP_WATER:
00073 return !IsBridgeAbove(tile) && IsCoast(tile) && !IsSlopeWithOneCornerRaised(GetTileSlope(tile, NULL));
00074
00075 case MP_CLEAR:
00076 return !IsBridgeAbove(tile) && !IsClearGround(tile, CLEAR_FIELDS) && GetRawClearGround(tile) != CLEAR_ROCKS &&
00077 (allow_desert || !IsClearGround(tile, CLEAR_DESERT)) && TileHeight(tile) <= _settings_newgame.game_creation.tree_line_height;
00078
00079 default: return false;
00080 }
00081 }
00082
00094 static void PlantTreesOnTile(TileIndex tile, TreeType treetype, uint count, uint growth)
00095 {
00096 assert(treetype != TREE_INVALID);
00097
00098 TreeGround ground;
00099 uint density = 3;
00100
00101 switch (GetTileType(tile)) {
00102 case MP_WATER:
00103 ground = TREE_GROUND_SHORE;
00104 break;
00105
00106 case MP_CLEAR:
00107 switch (GetClearGround(tile)) {
00108 case CLEAR_GRASS: ground = TREE_GROUND_GRASS; break;
00109 case CLEAR_ROUGH: ground = TREE_GROUND_ROUGH; break;
00110 case CLEAR_SNOW: ground = GetRawClearGround(tile) == CLEAR_ROUGH ? TREE_GROUND_ROUGH_SNOW : TREE_GROUND_SNOW_DESERT; break;
00111 default: ground = TREE_GROUND_SNOW_DESERT; break;
00112 }
00113 if (GetClearGround(tile) != CLEAR_ROUGH) density = GetClearDensity(tile);
00114 break;
00115
00116 default: NOT_REACHED();
00117 }
00118
00119 MakeTree(tile, treetype, count, growth, ground, density);
00120 }
00121
00133 static TreeType GetRandomTreeType(TileIndex tile, uint seed)
00134 {
00135 switch (_settings_game.game_creation.landscape) {
00136 case LT_TEMPERATE:
00137 return (TreeType)(seed * TREE_COUNT_TEMPERATE / 256 + TREE_TEMPERATE);
00138
00139 case LT_ARCTIC:
00140 return (TreeType)(seed * TREE_COUNT_SUB_ARCTIC / 256 + TREE_SUB_ARCTIC);
00141
00142 case LT_TROPIC:
00143 switch (GetTropicZone(tile)) {
00144 case TROPICZONE_NORMAL: return (TreeType)(seed * TREE_COUNT_SUB_TROPICAL / 256 + TREE_SUB_TROPICAL);
00145 case TROPICZONE_DESERT: return (TreeType)((seed > 12) ? TREE_INVALID : TREE_CACTUS);
00146 default: return (TreeType)(seed * TREE_COUNT_RAINFOREST / 256 + TREE_RAINFOREST);
00147 }
00148
00149 default:
00150 return (TreeType)(seed * TREE_COUNT_TOYLAND / 256 + TREE_TOYLAND);
00151 }
00152 }
00153
00163 static void PlaceTree(TileIndex tile, uint32 r)
00164 {
00165 TreeType tree = GetRandomTreeType(tile, GB(r, 24, 8));
00166
00167 if (tree != TREE_INVALID) {
00168 PlantTreesOnTile(tile, tree, GB(r, 22, 2), min(GB(r, 16, 3), 6));
00169
00170
00171 TreeGround ground = GetTreeGround(tile);
00172 if (ground != TREE_GROUND_SNOW_DESERT && ground != TREE_GROUND_ROUGH_SNOW && ground != TREE_GROUND_SHORE) {
00173 SetTreeGroundDensity(tile, (TreeGround)GB(r, 28, 1), 3);
00174 }
00175
00176
00177 SetTreeCounter(tile, (TreeGround)GB(r, 24, 4));
00178 }
00179 }
00180
00187 static void PlaceTreeGroups(uint num_groups)
00188 {
00189 do {
00190 TileIndex center_tile = RandomTile();
00191
00192 for (uint i = 0; i < DEFAULT_TREE_STEPS; i++) {
00193 uint32 r = Random();
00194 int x = GB(r, 0, 5) - 16;
00195 int y = GB(r, 8, 5) - 16;
00196 uint dist = abs(x) + abs(y);
00197 TileIndex cur_tile = TileAddWrap(center_tile, x, y);
00198
00199 IncreaseGeneratingWorldProgress(GWP_TREE);
00200
00201 if (cur_tile != INVALID_TILE && dist <= 13 && CanPlantTreesOnTile(cur_tile, true)) {
00202 PlaceTree(cur_tile, r);
00203 }
00204 }
00205
00206 } while (--num_groups);
00207 }
00208
00218 static void PlaceTreeAtSameHeight(TileIndex tile, uint height)
00219 {
00220 for (uint i = 0; i < DEFAULT_TREE_STEPS; i++) {
00221 uint32 r = Random();
00222 int x = GB(r, 0, 5) - 16;
00223 int y = GB(r, 8, 5) - 16;
00224 TileIndex cur_tile = TileAddWrap(tile, x, y);
00225 if (cur_tile == INVALID_TILE) continue;
00226
00227
00228 if (abs(x) + abs(y) > 16) continue;
00229
00230
00231 if (!CanPlantTreesOnTile(cur_tile, true)) continue;
00232
00233
00234 if (Delta(GetTileZ(cur_tile), height) > 2) continue;
00235
00236
00237 PlaceTree(cur_tile, r);
00238 break;
00239 }
00240 }
00241
00247 void PlaceTreesRandomly()
00248 {
00249 uint i, j, ht;
00250
00251 i = ScaleByMapSize(DEFAULT_TREE_STEPS);
00252 if (_game_mode == GM_EDITOR) i /= EDITOR_TREE_DIV;
00253 do {
00254 uint32 r = Random();
00255 TileIndex tile = RandomTileSeed(r);
00256
00257 IncreaseGeneratingWorldProgress(GWP_TREE);
00258
00259 if (CanPlantTreesOnTile(tile, true)) {
00260 PlaceTree(tile, r);
00261 if (_settings_game.game_creation.tree_placer != TP_IMPROVED) continue;
00262
00263
00264
00265
00266 ht = GetTileZ(tile);
00267
00268 j = GetTileZ(tile) / TILE_HEIGHT * 2;
00269
00270 if (_settings_game.game_creation.landscape == LT_ARCTIC && ht > GetSnowLine()) j *= 3;
00271 while (j--) {
00272 PlaceTreeAtSameHeight(tile, ht);
00273 }
00274 }
00275 } while (--i);
00276
00277
00278 if (_settings_game.game_creation.landscape == LT_TROPIC) {
00279 i = ScaleByMapSize(DEFAULT_RAINFOREST_TREE_STEPS);
00280 if (_game_mode == GM_EDITOR) i /= EDITOR_TREE_DIV;
00281
00282 do {
00283 uint32 r = Random();
00284 TileIndex tile = RandomTileSeed(r);
00285
00286 IncreaseGeneratingWorldProgress(GWP_TREE);
00287
00288 if (GetTropicZone(tile) == TROPICZONE_RAINFOREST && CanPlantTreesOnTile(tile, false)) {
00289 PlaceTree(tile, r);
00290 }
00291 } while (--i);
00292 }
00293 }
00294
00301 void GenerateTrees()
00302 {
00303 uint i, total;
00304
00305 if (_settings_game.game_creation.tree_placer == TP_NONE) return;
00306
00307 switch (_settings_game.game_creation.tree_placer) {
00308 case TP_ORIGINAL: i = _settings_game.game_creation.landscape == LT_ARCTIC ? 15 : 6; break;
00309 case TP_IMPROVED: i = _settings_game.game_creation.landscape == LT_ARCTIC ? 4 : 2; break;
00310 default: NOT_REACHED();
00311 }
00312
00313 total = ScaleByMapSize(DEFAULT_TREE_STEPS);
00314 if (_settings_game.game_creation.landscape == LT_TROPIC) total += ScaleByMapSize(DEFAULT_RAINFOREST_TREE_STEPS);
00315 total *= i;
00316 uint num_groups = (_settings_game.game_creation.landscape != LT_TOYLAND) ? ScaleByMapSize(GB(Random(), 0, 5) + 25) : 0;
00317 total += num_groups * DEFAULT_TREE_STEPS;
00318 SetGeneratingWorldProgress(GWP_TREE, total);
00319
00320 if (num_groups != 0) PlaceTreeGroups(num_groups);
00321
00322 for (; i != 0; i--) {
00323 PlaceTreesRandomly();
00324 }
00325 }
00326
00336 CommandCost CmdPlantTree(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00337 {
00338 StringID msg = INVALID_STRING_ID;
00339 CommandCost cost(EXPENSES_OTHER);
00340 const byte tree_to_plant = GB(p1, 0, 8);
00341
00342 if (p2 >= MapSize()) return CMD_ERROR;
00343
00344 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;
00345
00346 TileArea ta(tile, p2);
00347 TILE_AREA_LOOP(tile, ta) {
00348 switch (GetTileType(tile)) {
00349 case MP_TREES:
00350
00351 if (_game_mode != GM_EDITOR && GetTreeCount(tile) == 4) {
00352 msg = STR_ERROR_TREE_ALREADY_HERE;
00353 continue;
00354 }
00355
00356 if (flags & DC_EXEC) {
00357 AddTreeCount(tile, 1);
00358 MarkTileDirtyByTile(tile);
00359 }
00360
00361 cost.AddCost(_price[PR_BUILD_TREES] * 2);
00362 break;
00363
00364 case MP_WATER:
00365 if (!IsCoast(tile) || IsSlopeWithOneCornerRaised(GetTileSlope(tile, NULL))) {
00366 msg = STR_ERROR_CAN_T_BUILD_ON_WATER;
00367 continue;
00368 }
00369
00370 case MP_CLEAR: {
00371 if (IsBridgeAbove(tile)) {
00372 msg = STR_ERROR_SITE_UNSUITABLE;
00373 continue;
00374 }
00375
00376 TreeType treetype = (TreeType)tree_to_plant;
00377
00378 if (_settings_game.game_creation.landscape == LT_TROPIC && treetype != TREE_INVALID && (
00379
00380 (treetype == TREE_CACTUS && GetTropicZone(tile) != TROPICZONE_DESERT) ||
00381
00382 (IsInsideMM(treetype, TREE_RAINFOREST, TREE_CACTUS) && GetTropicZone(tile) != TROPICZONE_RAINFOREST && _game_mode != GM_EDITOR) ||
00383
00384 (IsInsideMM(treetype, TREE_SUB_TROPICAL, TREE_TOYLAND) && GetTropicZone(tile) != TROPICZONE_NORMAL))) {
00385 msg = STR_ERROR_TREE_WRONG_TERRAIN_FOR_TREE_TYPE;
00386 continue;
00387 }
00388
00389 if (TileHeight(tile) >= _settings_game.construction.ingame_tree_line_height) {
00390 msg = STR_ERROR_TREE_ABOVE_TREE_LINE;
00391 continue;
00392 }
00393
00394 if (IsTileType(tile, MP_CLEAR)) {
00395
00396 switch (GetRawClearGround(tile)) {
00397 case CLEAR_FIELDS:
00398 case CLEAR_ROCKS: {
00399 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00400 if (ret.Failed()) return ret;
00401 cost.AddCost(ret);
00402 break;
00403 }
00404
00405 default: break;
00406 }
00407 }
00408
00409 if (_game_mode != GM_EDITOR && Company::IsValidID(_current_company)) {
00410 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
00411 if (t != NULL) ChangeTownRating(t, RATING_TREE_UP_STEP, RATING_TREE_MAXIMUM, flags);
00412 }
00413
00414 if (flags & DC_EXEC) {
00415 if (treetype == TREE_INVALID) {
00416 treetype = GetRandomTreeType(tile, GB(Random(), 24, 8));
00417 if (treetype == TREE_INVALID) treetype = TREE_CACTUS;
00418 }
00419
00420
00421 PlantTreesOnTile(tile, treetype, 0, _game_mode == GM_EDITOR ? 3 : 0);
00422 MarkTileDirtyByTile(tile);
00423
00424
00425 if (_game_mode == GM_EDITOR && IsInsideMM(treetype, TREE_RAINFOREST, TREE_CACTUS)) {
00426 SetTropicZone(tile, TROPICZONE_RAINFOREST);
00427 }
00428 }
00429 cost.AddCost(_price[PR_BUILD_TREES]);
00430 break;
00431 }
00432
00433 default:
00434 msg = STR_ERROR_SITE_UNSUITABLE;
00435 break;
00436 }
00437 }
00438
00439 if (cost.GetCost() == 0) {
00440 return_cmd_error(msg);
00441 } else {
00442 return cost;
00443 }
00444 }
00445
00446 struct TreeListEnt : PalSpriteID {
00447 byte x, y;
00448 };
00449
00450 static void DrawTile_Trees(TileInfo *ti)
00451 {
00452 switch (GetTreeGround(ti->tile)) {
00453 case TREE_GROUND_SHORE: DrawShoreTile(ti->tileh); break;
00454 case TREE_GROUND_GRASS: DrawClearLandTile(ti, GetTreeDensity(ti->tile)); break;
00455 case TREE_GROUND_ROUGH: DrawHillyLandTile(ti); break;
00456 default: DrawGroundSprite(_clear_land_sprites_snow_desert[GetTreeDensity(ti->tile)] + SlopeToSpriteOffset(ti->tileh), PAL_NONE); break;
00457 }
00458
00459 DrawClearLandFence(ti);
00460
00461
00462 if (IsInvisibilitySet(TO_TREES)) return;
00463
00464 uint tmp = CountBits(ti->tile + ti->x + ti->y);
00465 uint index = GB(tmp, 0, 2) + (GetTreeType(ti->tile) << 2);
00466
00467
00468 if ((GetTreeGround(ti->tile) == TREE_GROUND_SNOW_DESERT || GetTreeGround(ti->tile) == TREE_GROUND_ROUGH_SNOW) &&
00469 GetTreeDensity(ti->tile) >= 2 &&
00470 IsInsideMM(index, TREE_SUB_ARCTIC << 2, TREE_RAINFOREST << 2)) {
00471 index += 164 - (TREE_SUB_ARCTIC << 2);
00472 }
00473
00474 assert(index < lengthof(_tree_layout_sprite));
00475
00476 const PalSpriteID *s = _tree_layout_sprite[index];
00477 const TreePos *d = _tree_layout_xy[GB(tmp, 2, 2)];
00478
00479
00480 StartSpriteCombine();
00481
00482 TreeListEnt te[4];
00483
00484
00485 uint trees = GetTreeCount(ti->tile);
00486
00487 for (uint i = 0; i < trees; i++) {
00488 SpriteID sprite = s[0].sprite + (i == trees - 1 ? GetTreeGrowth(ti->tile) : 3);
00489 PaletteID pal = s[0].pal;
00490
00491 te[i].sprite = sprite;
00492 te[i].pal = pal;
00493 te[i].x = d->x;
00494 te[i].y = d->y;
00495 s++;
00496 d++;
00497 }
00498
00499
00500 int z = ti->z + GetSlopeMaxZ(ti->tileh) / 2;
00501
00502 for (; trees > 0; trees--) {
00503 uint min = te[0].x + te[0].y;
00504 uint mi = 0;
00505
00506 for (uint i = 1; i < trees; i++) {
00507 if ((uint)(te[i].x + te[i].y) < min) {
00508 min = te[i].x + te[i].y;
00509 mi = i;
00510 }
00511 }
00512
00513 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);
00514
00515
00516 te[mi] = te[trees - 1];
00517 }
00518
00519 EndSpriteCombine();
00520 }
00521
00522
00523 static uint GetSlopeZ_Trees(TileIndex tile, uint x, uint y)
00524 {
00525 uint z;
00526 Slope tileh = GetTileSlope(tile, &z);
00527
00528 return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
00529 }
00530
00531 static Foundation GetFoundation_Trees(TileIndex tile, Slope tileh)
00532 {
00533 return FOUNDATION_NONE;
00534 }
00535
00536 static CommandCost ClearTile_Trees(TileIndex tile, DoCommandFlag flags)
00537 {
00538 uint num;
00539
00540 if (Company::IsValidID(_current_company)) {
00541 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
00542 if (t != NULL) ChangeTownRating(t, RATING_TREE_DOWN_STEP, RATING_TREE_MINIMUM, flags);
00543 }
00544
00545 num = GetTreeCount(tile);
00546 if (IsInsideMM(GetTreeType(tile), TREE_RAINFOREST, TREE_CACTUS)) num *= 4;
00547
00548 if (flags & DC_EXEC) DoClearSquare(tile);
00549
00550 return CommandCost(EXPENSES_CONSTRUCTION, num * _price[PR_CLEAR_TREES]);
00551 }
00552
00553 static void GetTileDesc_Trees(TileIndex tile, TileDesc *td)
00554 {
00555 TreeType tt = GetTreeType(tile);
00556
00557 if (IsInsideMM(tt, TREE_RAINFOREST, TREE_CACTUS)) {
00558 td->str = STR_LAI_TREE_NAME_RAINFOREST;
00559 } else {
00560 td->str = tt == TREE_CACTUS ? STR_LAI_TREE_NAME_CACTUS_PLANTS : STR_LAI_TREE_NAME_TREES;
00561 }
00562
00563 td->owner[0] = GetTileOwner(tile);
00564 }
00565
00566 static void TileLoopTreesDesert(TileIndex tile)
00567 {
00568 switch (GetTropicZone(tile)) {
00569 case TROPICZONE_DESERT:
00570 if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT) {
00571 SetTreeGroundDensity(tile, TREE_GROUND_SNOW_DESERT, 3);
00572 MarkTileDirtyByTile(tile);
00573 }
00574 break;
00575
00576 case TROPICZONE_RAINFOREST: {
00577 static const SoundFx forest_sounds[] = {
00578 SND_42_LOON_BIRD,
00579 SND_43_LION,
00580 SND_44_MONKEYS,
00581 SND_48_DISTANT_BIRD
00582 };
00583 uint32 r = Random();
00584
00585 if (Chance16I(1, 200, r)) SndPlayTileFx(forest_sounds[GB(r, 16, 2)], tile);
00586 break;
00587 }
00588
00589 default: break;
00590 }
00591 }
00592
00593 static void TileLoopTreesAlps(TileIndex tile)
00594 {
00595 int k = GetTileZ(tile) - GetSnowLine() + TILE_HEIGHT;
00596
00597 if (k < 0) {
00598 switch (GetTreeGround(tile)) {
00599 case TREE_GROUND_SNOW_DESERT: SetTreeGroundDensity(tile, TREE_GROUND_GRASS, 3); break;
00600 case TREE_GROUND_ROUGH_SNOW: SetTreeGroundDensity(tile, TREE_GROUND_ROUGH, 3); break;
00601 default: return;
00602 }
00603 } else {
00604 uint density = min((uint)k / TILE_HEIGHT, 3);
00605
00606 if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT && GetTreeGround(tile) != TREE_GROUND_ROUGH_SNOW) {
00607 TreeGround tg = GetTreeGround(tile) == TREE_GROUND_ROUGH ? TREE_GROUND_ROUGH_SNOW : TREE_GROUND_SNOW_DESERT;
00608 SetTreeGroundDensity(tile, tg, density);
00609 } else if (GetTreeDensity(tile) != density) {
00610 SetTreeGroundDensity(tile, GetTreeGround(tile), density);
00611 } else {
00612 if (GetTreeDensity(tile) == 3) {
00613 uint32 r = Random();
00614 if (Chance16I(1, 200, r)) {
00615 SndPlayTileFx((r & 0x80000000) ? SND_39_HEAVY_WIND : SND_34_WIND, tile);
00616 }
00617 }
00618 return;
00619 }
00620 }
00621 MarkTileDirtyByTile(tile);
00622 }
00623
00624 static void TileLoop_Trees(TileIndex tile)
00625 {
00626 if (GetTreeGround(tile) == TREE_GROUND_SHORE) {
00627 TileLoop_Water(tile);
00628 } else {
00629 switch (_settings_game.game_creation.landscape) {
00630 case LT_TROPIC: TileLoopTreesDesert(tile); break;
00631 case LT_ARCTIC: TileLoopTreesAlps(tile); break;
00632 }
00633 }
00634
00635 TileLoopClearHelper(tile);
00636
00637 uint treeCounter = GetTreeCounter(tile);
00638
00639
00640 if ((treeCounter & 7) == 7 && GetTreeGround(tile) == TREE_GROUND_GRASS) {
00641 uint density = GetTreeDensity(tile);
00642 if (density < 3) {
00643 SetTreeGroundDensity(tile, TREE_GROUND_GRASS, density + 1);
00644 MarkTileDirtyByTile(tile);
00645 }
00646 }
00647 if (GetTreeCounter(tile) < 15) {
00648 if (_settings_game.construction.tree_growth_rate > 0) {
00649
00650 uint8 grow_slowing_values[3] = { 5, 20, 120 };
00651 uint16 prob = 0x10000 / grow_slowing_values[_settings_game.construction.tree_growth_rate - 1];
00652 if (GB(Random(), 0, 16) < prob) AddTreeCounter(tile, 1);
00653 } else {
00654 AddTreeCounter(tile, 1);
00655 }
00656 return;
00657 }
00658 SetTreeCounter(tile, 0);
00659
00660 switch (GetTreeGrowth(tile)) {
00661 case 3:
00662 if (_settings_game.game_creation.landscape == LT_TROPIC &&
00663 GetTreeType(tile) != TREE_CACTUS &&
00664 GetTropicZone(tile) == TROPICZONE_DESERT) {
00665 AddTreeGrowth(tile, 1);
00666 } else {
00667 switch (GB(Random(), 0, 3)) {
00668 case 0:
00669 AddTreeGrowth(tile, 1);
00670 break;
00671
00672 case 1:
00673 if (GetTreeCount(tile) < 4) {
00674 AddTreeCount(tile, 1);
00675 SetTreeGrowth(tile, 0);
00676 break;
00677 }
00678
00679
00680 case 2: {
00681
00682 if ((_settings_game.game_creation.landscape == LT_TROPIC && GetTropicZone(tile) == TROPICZONE_RAINFOREST) ?
00683 _settings_game.construction.extra_tree_placement == ETP_NONE :
00684 _settings_game.construction.extra_tree_placement != ETP_ALL) {
00685 break;
00686 }
00687
00688 TreeType treetype = GetTreeType(tile);
00689
00690 tile += TileOffsByDir((Direction)(Random() & 7));
00691
00692
00693 if (!CanPlantTreesOnTile(tile, false)) return;
00694
00695
00696 if (IsTileType(tile, MP_CLEAR) && GetClearGround(tile) == CLEAR_GRASS && GetClearDensity(tile) != 3) return;
00697
00698 PlantTreesOnTile(tile, treetype, 0, 0);
00699
00700 break;
00701 }
00702
00703 default:
00704 return;
00705 }
00706 }
00707 break;
00708
00709 case 6:
00710 if (GetTreeCount(tile) > 1) {
00711
00712 AddTreeCount(tile, -1);
00713 SetTreeGrowth(tile, 3);
00714 } else {
00715
00716 switch (GetTreeGround(tile)) {
00717 case TREE_GROUND_SHORE: MakeShore(tile); break;
00718 case TREE_GROUND_GRASS: MakeClear(tile, CLEAR_GRASS, GetTreeDensity(tile)); break;
00719 case TREE_GROUND_ROUGH: MakeClear(tile, CLEAR_ROUGH, 3); break;
00720 case TREE_GROUND_ROUGH_SNOW: {
00721 uint density = GetTreeDensity(tile);
00722 MakeClear(tile, CLEAR_ROUGH, 3);
00723 MakeSnow(tile, density);
00724 break;
00725 }
00726 default:
00727 if (_settings_game.game_creation.landscape == LT_TROPIC) {
00728 MakeClear(tile, CLEAR_DESERT, GetTreeDensity(tile));
00729 } else {
00730 uint density = GetTreeDensity(tile);
00731 MakeClear(tile, CLEAR_GRASS, 3);
00732 MakeSnow(tile, density);
00733 }
00734 break;
00735 }
00736 }
00737 break;
00738
00739 default:
00740 AddTreeGrowth(tile, 1);
00741 break;
00742 }
00743
00744 MarkTileDirtyByTile(tile);
00745 }
00746
00747 void OnTick_Trees()
00748 {
00749
00750 if (_settings_game.construction.extra_tree_placement == ETP_NONE) return;
00751
00752 uint32 r;
00753 TileIndex tile;
00754 TreeType tree;
00755
00756
00757 if (_settings_game.game_creation.landscape == LT_TROPIC &&
00758 (r = Random(), tile = RandomTileSeed(r), GetTropicZone(tile) == TROPICZONE_RAINFOREST) &&
00759 CanPlantTreesOnTile(tile, false) &&
00760 (tree = GetRandomTreeType(tile, GB(r, 24, 8))) != TREE_INVALID) {
00761 PlantTreesOnTile(tile, tree, 0, 0);
00762 }
00763
00764
00765 if (--_trees_tick_ctr != 0 || _settings_game.construction.extra_tree_placement != ETP_ALL) return;
00766
00767
00768 r = Random();
00769 tile = RandomTileSeed(r);
00770 if (CanPlantTreesOnTile(tile, false) && (tree = GetRandomTreeType(tile, GB(r, 24, 8))) != TREE_INVALID) {
00771 PlantTreesOnTile(tile, tree, 0, 0);
00772 }
00773 }
00774
00775 static TrackStatus GetTileTrackStatus_Trees(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00776 {
00777 return 0;
00778 }
00779
00780 static void ChangeTileOwner_Trees(TileIndex tile, Owner old_owner, Owner new_owner)
00781 {
00782
00783 }
00784
00785 void InitializeTrees()
00786 {
00787 _trees_tick_ctr = 0;
00788 }
00789
00790 static CommandCost TerraformTile_Trees(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
00791 {
00792 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00793 }
00794
00795
00796 extern const TileTypeProcs _tile_type_trees_procs = {
00797 DrawTile_Trees,
00798 GetSlopeZ_Trees,
00799 ClearTile_Trees,
00800 NULL,
00801 GetTileDesc_Trees,
00802 GetTileTrackStatus_Trees,
00803 NULL,
00804 NULL,
00805 TileLoop_Trees,
00806 ChangeTileOwner_Trees,
00807 NULL,
00808 NULL,
00809 GetFoundation_Trees,
00810 TerraformTile_Trees,
00811 };