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00014 #include "stdafx.h"
00015 #include "heightmap.h"
00016 #include "clear_map.h"
00017 #include "spritecache.h"
00018 #include "viewport_func.h"
00019 #include "command_func.h"
00020 #include "landscape.h"
00021 #include "void_map.h"
00022 #include "tgp.h"
00023 #include "genworld.h"
00024 #include "fios.h"
00025 #include "date_func.h"
00026 #include "water.h"
00027 #include "effectvehicle_func.h"
00028 #include "landscape_type.h"
00029 #include "animated_tile_func.h"
00030 #include "core/random_func.hpp"
00031 #include "object_base.h"
00032 #include "water_map.h"
00033 #include "economy_func.h"
00034 #include "company_func.h"
00035
00036 #include "table/strings.h"
00037 #include "table/sprites.h"
00038
00039 extern const TileTypeProcs
00040 _tile_type_clear_procs,
00041 _tile_type_rail_procs,
00042 _tile_type_road_procs,
00043 _tile_type_town_procs,
00044 _tile_type_trees_procs,
00045 _tile_type_station_procs,
00046 _tile_type_water_procs,
00047 _tile_type_void_procs,
00048 _tile_type_industry_procs,
00049 _tile_type_tunnelbridge_procs,
00050 _tile_type_object_procs;
00051
00057 const TileTypeProcs * const _tile_type_procs[16] = {
00058 &_tile_type_clear_procs,
00059 &_tile_type_rail_procs,
00060 &_tile_type_road_procs,
00061 &_tile_type_town_procs,
00062 &_tile_type_trees_procs,
00063 &_tile_type_station_procs,
00064 &_tile_type_water_procs,
00065 &_tile_type_void_procs,
00066 &_tile_type_industry_procs,
00067 &_tile_type_tunnelbridge_procs,
00068 &_tile_type_object_procs,
00069 };
00070
00072 extern const byte _slope_to_sprite_offset[32] = {
00073 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
00074 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0, 17, 0, 15, 18, 0,
00075 };
00076
00085 static SnowLine *_snow_line = NULL;
00086
00095 uint ApplyFoundationToSlope(Foundation f, Slope *s)
00096 {
00097 if (!IsFoundation(f)) return 0;
00098
00099 if (IsLeveledFoundation(f)) {
00100 uint dz = TILE_HEIGHT + (IsSteepSlope(*s) ? TILE_HEIGHT : 0);
00101 *s = SLOPE_FLAT;
00102 return dz;
00103 }
00104
00105 if (f != FOUNDATION_STEEP_BOTH && IsNonContinuousFoundation(f)) {
00106 *s = HalftileSlope(*s, GetHalftileFoundationCorner(f));
00107 return 0;
00108 }
00109
00110 if (IsSpecialRailFoundation(f)) {
00111 *s = SlopeWithThreeCornersRaised(OppositeCorner(GetRailFoundationCorner(f)));
00112 return 0;
00113 }
00114
00115 uint dz = IsSteepSlope(*s) ? TILE_HEIGHT : 0;
00116 Corner highest_corner = GetHighestSlopeCorner(*s);
00117
00118 switch (f) {
00119 case FOUNDATION_INCLINED_X:
00120 *s = (((highest_corner == CORNER_W) || (highest_corner == CORNER_S)) ? SLOPE_SW : SLOPE_NE);
00121 break;
00122
00123 case FOUNDATION_INCLINED_Y:
00124 *s = (((highest_corner == CORNER_S) || (highest_corner == CORNER_E)) ? SLOPE_SE : SLOPE_NW);
00125 break;
00126
00127 case FOUNDATION_STEEP_LOWER:
00128 *s = SlopeWithOneCornerRaised(highest_corner);
00129 break;
00130
00131 case FOUNDATION_STEEP_BOTH:
00132 *s = HalftileSlope(SlopeWithOneCornerRaised(highest_corner), highest_corner);
00133 break;
00134
00135 default: NOT_REACHED();
00136 }
00137 return dz;
00138 }
00139
00140
00148 uint GetPartialZ(int x, int y, Slope corners)
00149 {
00150 if (IsHalftileSlope(corners)) {
00151 switch (GetHalftileSlopeCorner(corners)) {
00152 case CORNER_W:
00153 if (x - y >= 0) return GetSlopeMaxZ(corners);
00154 break;
00155
00156 case CORNER_S:
00157 if (x - (y ^ 0xF) >= 0) return GetSlopeMaxZ(corners);
00158 break;
00159
00160 case CORNER_E:
00161 if (y - x >= 0) return GetSlopeMaxZ(corners);
00162 break;
00163
00164 case CORNER_N:
00165 if ((y ^ 0xF) - x >= 0) return GetSlopeMaxZ(corners);
00166 break;
00167
00168 default: NOT_REACHED();
00169 }
00170 }
00171
00172 int z = 0;
00173
00174 switch (RemoveHalftileSlope(corners)) {
00175 case SLOPE_W:
00176 if (x - y >= 0) {
00177 z = (x - y) >> 1;
00178 }
00179 break;
00180
00181 case SLOPE_S:
00182 y ^= 0xF;
00183 if ((x - y) >= 0) {
00184 z = (x - y) >> 1;
00185 }
00186 break;
00187
00188 case SLOPE_SW:
00189 z = (x >> 1) + 1;
00190 break;
00191
00192 case SLOPE_E:
00193 if (y - x >= 0) {
00194 z = (y - x) >> 1;
00195 }
00196 break;
00197
00198 case SLOPE_EW:
00199 case SLOPE_NS:
00200 case SLOPE_ELEVATED:
00201 z = 4;
00202 break;
00203
00204 case SLOPE_SE:
00205 z = (y >> 1) + 1;
00206 break;
00207
00208 case SLOPE_WSE:
00209 z = 8;
00210 y ^= 0xF;
00211 if (x - y < 0) {
00212 z += (x - y) >> 1;
00213 }
00214 break;
00215
00216 case SLOPE_N:
00217 y ^= 0xF;
00218 if (y - x >= 0) {
00219 z = (y - x) >> 1;
00220 }
00221 break;
00222
00223 case SLOPE_NW:
00224 z = (y ^ 0xF) >> 1;
00225 break;
00226
00227 case SLOPE_NWS:
00228 z = 8;
00229 if (x - y < 0) {
00230 z += (x - y) >> 1;
00231 }
00232 break;
00233
00234 case SLOPE_NE:
00235 z = (x ^ 0xF) >> 1;
00236 break;
00237
00238 case SLOPE_ENW:
00239 z = 8;
00240 y ^= 0xF;
00241 if (y - x < 0) {
00242 z += (y - x) >> 1;
00243 }
00244 break;
00245
00246 case SLOPE_SEN:
00247 z = 8;
00248 if (y - x < 0) {
00249 z += (y - x) >> 1;
00250 }
00251 break;
00252
00253 case SLOPE_STEEP_S:
00254 z = 1 + ((x + y) >> 1);
00255 break;
00256
00257 case SLOPE_STEEP_W:
00258 z = 1 + ((x + (y ^ 0xF)) >> 1);
00259 break;
00260
00261 case SLOPE_STEEP_N:
00262 z = 1 + (((x ^ 0xF) + (y ^ 0xF)) >> 1);
00263 break;
00264
00265 case SLOPE_STEEP_E:
00266 z = 1 + (((x ^ 0xF) + y) >> 1);
00267 break;
00268
00269 default: break;
00270 }
00271
00272 return z;
00273 }
00274
00275 uint GetSlopeZ(int x, int y)
00276 {
00277 TileIndex tile = TileVirtXY(x, y);
00278
00279 return _tile_type_procs[GetTileType(tile)]->get_slope_z_proc(tile, x, y);
00280 }
00281
00291 int GetSlopeZInCorner(Slope tileh, Corner corner)
00292 {
00293 assert(!IsHalftileSlope(tileh));
00294 return ((tileh & SlopeWithOneCornerRaised(corner)) != 0 ? TILE_HEIGHT : 0) + (tileh == SteepSlope(corner) ? TILE_HEIGHT : 0);
00295 }
00296
00309 void GetSlopeZOnEdge(Slope tileh, DiagDirection edge, int *z1, int *z2)
00310 {
00311 static const Slope corners[4][4] = {
00312
00313
00314 {SLOPE_E, SLOPE_N, SLOPE_STEEP_E, SLOPE_STEEP_N},
00315 {SLOPE_S, SLOPE_E, SLOPE_STEEP_S, SLOPE_STEEP_E},
00316 {SLOPE_S, SLOPE_W, SLOPE_STEEP_S, SLOPE_STEEP_W},
00317 {SLOPE_W, SLOPE_N, SLOPE_STEEP_W, SLOPE_STEEP_N},
00318 };
00319
00320 int halftile_test = (IsHalftileSlope(tileh) ? SlopeWithOneCornerRaised(GetHalftileSlopeCorner(tileh)) : 0);
00321 if (halftile_test == corners[edge][0]) *z2 += TILE_HEIGHT;
00322 if (halftile_test == corners[edge][1]) *z1 += TILE_HEIGHT;
00323
00324 if ((tileh & corners[edge][0]) != 0) *z1 += TILE_HEIGHT;
00325 if ((tileh & corners[edge][1]) != 0) *z2 += TILE_HEIGHT;
00326 if (RemoveHalftileSlope(tileh) == corners[edge][2]) *z1 += TILE_HEIGHT;
00327 if (RemoveHalftileSlope(tileh) == corners[edge][3]) *z2 += TILE_HEIGHT;
00328 }
00329
00338 Slope GetFoundationSlope(TileIndex tile, uint *z)
00339 {
00340 Slope tileh = GetTileSlope(tile, z);
00341 Foundation f = _tile_type_procs[GetTileType(tile)]->get_foundation_proc(tile, tileh);
00342 uint z_inc = ApplyFoundationToSlope(f, &tileh);
00343 if (z != NULL) *z += z_inc;
00344 return tileh;
00345 }
00346
00347
00348 bool HasFoundationNW(TileIndex tile, Slope slope_here, uint z_here)
00349 {
00350 uint z;
00351
00352 int z_W_here = z_here;
00353 int z_N_here = z_here;
00354 GetSlopeZOnEdge(slope_here, DIAGDIR_NW, &z_W_here, &z_N_here);
00355
00356 Slope slope = GetFoundationSlope(TILE_ADDXY(tile, 0, -1), &z);
00357 int z_W = z;
00358 int z_N = z;
00359 GetSlopeZOnEdge(slope, DIAGDIR_SE, &z_W, &z_N);
00360
00361 return (z_N_here > z_N) || (z_W_here > z_W);
00362 }
00363
00364
00365 bool HasFoundationNE(TileIndex tile, Slope slope_here, uint z_here)
00366 {
00367 uint z;
00368
00369 int z_E_here = z_here;
00370 int z_N_here = z_here;
00371 GetSlopeZOnEdge(slope_here, DIAGDIR_NE, &z_E_here, &z_N_here);
00372
00373 Slope slope = GetFoundationSlope(TILE_ADDXY(tile, -1, 0), &z);
00374 int z_E = z;
00375 int z_N = z;
00376 GetSlopeZOnEdge(slope, DIAGDIR_SW, &z_E, &z_N);
00377
00378 return (z_N_here > z_N) || (z_E_here > z_E);
00379 }
00380
00386 void DrawFoundation(TileInfo *ti, Foundation f)
00387 {
00388 if (!IsFoundation(f)) return;
00389
00390
00391 assert(f != FOUNDATION_STEEP_BOTH);
00392
00393 uint sprite_block = 0;
00394 uint z;
00395 Slope slope = GetFoundationSlope(ti->tile, &z);
00396
00397
00398
00399
00400
00401
00402
00403 if (!HasFoundationNW(ti->tile, slope, z)) sprite_block += 1;
00404 if (!HasFoundationNE(ti->tile, slope, z)) sprite_block += 2;
00405
00406
00407 SpriteID leveled_base = (sprite_block == 0 ? (int)SPR_FOUNDATION_BASE : (SPR_SLOPES_VIRTUAL_BASE + sprite_block * SPR_TRKFOUND_BLOCK_SIZE));
00408 SpriteID inclined_base = SPR_SLOPES_VIRTUAL_BASE + SPR_SLOPES_INCLINED_OFFSET + sprite_block * SPR_TRKFOUND_BLOCK_SIZE;
00409 SpriteID halftile_base = SPR_HALFTILE_FOUNDATION_BASE + sprite_block * SPR_HALFTILE_BLOCK_SIZE;
00410
00411 if (IsSteepSlope(ti->tileh)) {
00412 if (!IsNonContinuousFoundation(f)) {
00413
00414 AddSortableSpriteToDraw(
00415 leveled_base + (ti->tileh & ~SLOPE_STEEP), PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z
00416 );
00417 }
00418
00419 Corner highest_corner = GetHighestSlopeCorner(ti->tileh);
00420 ti->z += ApplyFoundationToSlope(f, &ti->tileh);
00421
00422 if (IsInclinedFoundation(f)) {
00423
00424 byte inclined = highest_corner * 2 + (f == FOUNDATION_INCLINED_Y ? 1 : 0);
00425
00426 AddSortableSpriteToDraw(inclined_base + inclined, PAL_NONE, ti->x, ti->y,
00427 f == FOUNDATION_INCLINED_X ? 16 : 1,
00428 f == FOUNDATION_INCLINED_Y ? 16 : 1,
00429 TILE_HEIGHT, ti->z
00430 );
00431 OffsetGroundSprite(31, 9);
00432 } else if (IsLeveledFoundation(f)) {
00433 AddSortableSpriteToDraw(leveled_base + SlopeWithOneCornerRaised(highest_corner), PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z - TILE_HEIGHT);
00434 OffsetGroundSprite(31, 1);
00435 } else if (f == FOUNDATION_STEEP_LOWER) {
00436
00437 OffsetGroundSprite(31, 1);
00438 } else {
00439
00440 int x_bb = (((highest_corner == CORNER_W) || (highest_corner == CORNER_S)) ? 8 : 0);
00441 int y_bb = (((highest_corner == CORNER_S) || (highest_corner == CORNER_E)) ? 8 : 0);
00442
00443 AddSortableSpriteToDraw(halftile_base + highest_corner, PAL_NONE, ti->x + x_bb, ti->y + y_bb, 8, 8, 7, ti->z + TILE_HEIGHT);
00444 OffsetGroundSprite(31, 9);
00445 }
00446 } else {
00447 if (IsLeveledFoundation(f)) {
00448
00449 AddSortableSpriteToDraw(leveled_base + ti->tileh, PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z);
00450 OffsetGroundSprite(31, 1);
00451 } else if (IsNonContinuousFoundation(f)) {
00452
00453 Corner halftile_corner = GetHalftileFoundationCorner(f);
00454 int x_bb = (((halftile_corner == CORNER_W) || (halftile_corner == CORNER_S)) ? 8 : 0);
00455 int y_bb = (((halftile_corner == CORNER_S) || (halftile_corner == CORNER_E)) ? 8 : 0);
00456
00457 AddSortableSpriteToDraw(halftile_base + halftile_corner, PAL_NONE, ti->x + x_bb, ti->y + y_bb, 8, 8, 7, ti->z);
00458 OffsetGroundSprite(31, 9);
00459 } else if (IsSpecialRailFoundation(f)) {
00460
00461 SpriteID spr;
00462 if (ti->tileh == SLOPE_NS || ti->tileh == SLOPE_EW) {
00463
00464 spr = leveled_base + SlopeWithThreeCornersRaised(GetRailFoundationCorner(f));
00465 } else {
00466
00467 spr = inclined_base + 2 * GetRailFoundationCorner(f) + ((ti->tileh == SLOPE_SW || ti->tileh == SLOPE_NE) ? 1 : 0);
00468 }
00469 AddSortableSpriteToDraw(spr, PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z);
00470 OffsetGroundSprite(31, 9);
00471 } else {
00472
00473 byte inclined = GetHighestSlopeCorner(ti->tileh) * 2 + (f == FOUNDATION_INCLINED_Y ? 1 : 0);
00474
00475 AddSortableSpriteToDraw(inclined_base + inclined, PAL_NONE, ti->x, ti->y,
00476 f == FOUNDATION_INCLINED_X ? 16 : 1,
00477 f == FOUNDATION_INCLINED_Y ? 16 : 1,
00478 TILE_HEIGHT, ti->z
00479 );
00480 OffsetGroundSprite(31, 9);
00481 }
00482 ti->z += ApplyFoundationToSlope(f, &ti->tileh);
00483 }
00484 }
00485
00486 void DoClearSquare(TileIndex tile)
00487 {
00488
00489 if (_tile_type_procs[GetTileType(tile)]->animate_tile_proc != NULL) DeleteAnimatedTile(tile);
00490
00491 MakeClear(tile, CLEAR_GRASS, _generating_world ? 3 : 0);
00492 MarkTileDirtyByTile(tile);
00493 }
00494
00505 TrackStatus GetTileTrackStatus(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00506 {
00507 return _tile_type_procs[GetTileType(tile)]->get_tile_track_status_proc(tile, mode, sub_mode, side);
00508 }
00509
00516 void ChangeTileOwner(TileIndex tile, Owner old_owner, Owner new_owner)
00517 {
00518 _tile_type_procs[GetTileType(tile)]->change_tile_owner_proc(tile, old_owner, new_owner);
00519 }
00520
00521 void GetTileDesc(TileIndex tile, TileDesc *td)
00522 {
00523 _tile_type_procs[GetTileType(tile)]->get_tile_desc_proc(tile, td);
00524 }
00525
00531 bool IsSnowLineSet()
00532 {
00533 return _snow_line != NULL;
00534 }
00535
00541 void SetSnowLine(byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS])
00542 {
00543 _snow_line = CallocT<SnowLine>(1);
00544 _snow_line->lowest_value = 0xFF;
00545 memcpy(_snow_line->table, table, sizeof(_snow_line->table));
00546
00547 for (uint i = 0; i < SNOW_LINE_MONTHS; i++) {
00548 for (uint j = 0; j < SNOW_LINE_DAYS; j++) {
00549 _snow_line->highest_value = max(_snow_line->highest_value, table[i][j]);
00550 _snow_line->lowest_value = min(_snow_line->lowest_value, table[i][j]);
00551 }
00552 }
00553 }
00554
00560 byte GetSnowLine()
00561 {
00562 if (_snow_line == NULL) return _settings_game.game_creation.snow_line;
00563
00564 YearMonthDay ymd;
00565 ConvertDateToYMD(_date, &ymd);
00566 return _snow_line->table[ymd.month][ymd.day];
00567 }
00568
00574 byte HighestSnowLine()
00575 {
00576 return _snow_line == NULL ? _settings_game.game_creation.snow_line : _snow_line->highest_value;
00577 }
00578
00584 byte LowestSnowLine()
00585 {
00586 return _snow_line == NULL ? _settings_game.game_creation.snow_line : _snow_line->lowest_value;
00587 }
00588
00593 void ClearSnowLine()
00594 {
00595 free(_snow_line);
00596 _snow_line = NULL;
00597 }
00598
00608 CommandCost CmdLandscapeClear(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00609 {
00610 CommandCost cost(EXPENSES_CONSTRUCTION);
00611 bool do_clear = false;
00612
00613 if ((flags & DC_FORCE_CLEAR_TILE) && HasTileWaterClass(tile) && IsTileOnWater(tile) && !IsWaterTile(tile) && !IsCoastTile(tile)) {
00614 if ((flags & DC_AUTO) && GetWaterClass(tile) == WATER_CLASS_CANAL) return_cmd_error(STR_ERROR_MUST_DEMOLISH_CANAL_FIRST);
00615 do_clear = true;
00616 cost.AddCost(GetWaterClass(tile) == WATER_CLASS_CANAL ? _price[PR_CLEAR_CANAL] : _price[PR_CLEAR_WATER]);
00617 }
00618
00619 Company *c = (flags & (DC_AUTO | DC_BANKRUPT)) ? NULL : Company::GetIfValid(_current_company);
00620 if (c != NULL && (int)GB(c->clear_limit, 16, 16) < 1) {
00621 return_cmd_error(STR_ERROR_CLEARING_LIMIT_REACHED);
00622 }
00623
00624 const ClearedObjectArea *coa = FindClearedObject(tile);
00625
00626
00627
00628 if (coa != NULL && coa->first_tile != tile) {
00629
00630
00631
00632
00633
00634 if ((flags & DC_NO_WATER) && HasTileWaterClass(tile) && IsTileOnWater(tile)) {
00635 return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00636 }
00637 } else {
00638 cost.AddCost(_tile_type_procs[GetTileType(tile)]->clear_tile_proc(tile, flags));
00639 }
00640
00641 if (flags & DC_EXEC) {
00642 if (c != NULL) c->clear_limit -= 1 << 16;
00643 if (do_clear) DoClearSquare(tile);
00644 }
00645 return cost;
00646 }
00647
00658 CommandCost CmdClearArea(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00659 {
00660 if (p1 >= MapSize()) return CMD_ERROR;
00661
00662 Money money = GetAvailableMoneyForCommand();
00663 CommandCost cost(EXPENSES_CONSTRUCTION);
00664 CommandCost last_error = CMD_ERROR;
00665 bool had_success = false;
00666
00667 const Company *c = (flags & (DC_AUTO | DC_BANKRUPT)) ? NULL : Company::GetIfValid(_current_company);
00668 int limit = (c == NULL ? INT32_MAX : GB(c->clear_limit, 16, 16));
00669
00670 TileArea ta(tile, p1);
00671 TileIterator *iter = HasBit(p2, 0) ? (TileIterator *)new DiagonalTileIterator(tile, p1) : new OrthogonalTileIterator(ta);
00672 for (; *iter != INVALID_TILE; ++(*iter)) {
00673 TileIndex t = *iter;
00674 CommandCost ret = DoCommand(t, 0, 0, flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR);
00675 if (ret.Failed()) {
00676 last_error = ret;
00677
00678
00679 if (c != NULL && GB(c->clear_limit, 16, 16) < 1) break;
00680 continue;
00681 }
00682
00683 had_success = true;
00684 if (flags & DC_EXEC) {
00685 money -= ret.GetCost();
00686 if (ret.GetCost() > 0 && money < 0) {
00687 _additional_cash_required = ret.GetCost();
00688 delete iter;
00689 return cost;
00690 }
00691 DoCommand(t, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00692
00693
00694 TileIndex off = t - ta.tile;
00695 if ((TileX(off) == 0 || TileX(off) == ta.w - 1U) && (TileY(off) == 0 || TileY(off) == ta.h - 1U)) {
00696
00697 CreateEffectVehicleAbove(TileX(t) * TILE_SIZE + TILE_SIZE / 2, TileY(t) * TILE_SIZE + TILE_SIZE / 2, 2,
00698 ta.w == 1 && ta.h == 1 ? EV_EXPLOSION_SMALL : EV_EXPLOSION_LARGE
00699 );
00700 }
00701 } else {
00702
00703 if (ret.GetCost() != 0 && --limit <= 0) break;
00704 }
00705 cost.AddCost(ret);
00706 }
00707
00708 delete iter;
00709 return had_success ? cost : last_error;
00710 }
00711
00712
00713 TileIndex _cur_tileloop_tile;
00714 #define TILELOOP_BITS 4
00715 #define TILELOOP_SIZE (1 << TILELOOP_BITS)
00716 #define TILELOOP_ASSERTMASK ((TILELOOP_SIZE - 1) + ((TILELOOP_SIZE - 1) << MapLogX()))
00717 #define TILELOOP_CHKMASK (((1 << (MapLogX() - TILELOOP_BITS))-1) << TILELOOP_BITS)
00718
00719 void RunTileLoop()
00720 {
00721 TileIndex tile = _cur_tileloop_tile;
00722
00723 assert((tile & ~TILELOOP_ASSERTMASK) == 0);
00724 uint count = (MapSizeX() / TILELOOP_SIZE) * (MapSizeY() / TILELOOP_SIZE);
00725 do {
00726 _tile_type_procs[GetTileType(tile)]->tile_loop_proc(tile);
00727
00728 if (TileX(tile) < MapSizeX() - TILELOOP_SIZE) {
00729 tile += TILELOOP_SIZE;
00730 } else {
00731 tile = TILE_MASK(tile - TILELOOP_SIZE * (MapSizeX() / TILELOOP_SIZE - 1) + TileDiffXY(0, TILELOOP_SIZE));
00732 }
00733 } while (--count != 0);
00734 assert((tile & ~TILELOOP_ASSERTMASK) == 0);
00735
00736 tile += 9;
00737 if (tile & TILELOOP_CHKMASK) {
00738 tile = (tile + MapSizeX()) & TILELOOP_ASSERTMASK;
00739 }
00740 _cur_tileloop_tile = tile;
00741 }
00742
00743 void InitializeLandscape()
00744 {
00745 uint maxx = MapMaxX();
00746 uint maxy = MapMaxY();
00747 uint sizex = MapSizeX();
00748
00749 uint y;
00750 for (y = _settings_game.construction.freeform_edges ? 1 : 0; y < maxy; y++) {
00751 uint x;
00752 for (x = _settings_game.construction.freeform_edges ? 1 : 0; x < maxx; x++) {
00753 MakeClear(sizex * y + x, CLEAR_GRASS, 3);
00754 SetTileHeight(sizex * y + x, 0);
00755 SetTropicZone(sizex * y + x, TROPICZONE_NORMAL);
00756 ClearBridgeMiddle(sizex * y + x);
00757 }
00758 MakeVoid(sizex * y + x);
00759 }
00760 for (uint x = 0; x < sizex; x++) MakeVoid(sizex * y + x);
00761 }
00762
00763 static const byte _genterrain_tbl_1[5] = { 10, 22, 33, 37, 4 };
00764 static const byte _genterrain_tbl_2[5] = { 0, 0, 0, 0, 33 };
00765
00766 static void GenerateTerrain(int type, uint flag)
00767 {
00768 uint32 r = Random();
00769
00770 const Sprite *templ = GetSprite((((r >> 24) * _genterrain_tbl_1[type]) >> 8) + _genterrain_tbl_2[type] + 4845, ST_MAPGEN);
00771
00772 uint x = r & MapMaxX();
00773 uint y = (r >> MapLogX()) & MapMaxY();
00774
00775 if (x < 2 || y < 2) return;
00776
00777 DiagDirection direction = (DiagDirection)GB(r, 22, 2);
00778 uint w = templ->width;
00779 uint h = templ->height;
00780
00781 if (DiagDirToAxis(direction) == AXIS_Y) Swap(w, h);
00782
00783 const byte *p = templ->data;
00784
00785 if ((flag & 4) != 0) {
00786 uint xw = x * MapSizeY();
00787 uint yw = y * MapSizeX();
00788 uint bias = (MapSizeX() + MapSizeY()) * 16;
00789
00790 switch (flag & 3) {
00791 default: NOT_REACHED();
00792 case 0:
00793 if (xw + yw > MapSize() - bias) return;
00794 break;
00795
00796 case 1:
00797 if (yw < xw + bias) return;
00798 break;
00799
00800 case 2:
00801 if (xw + yw < MapSize() + bias) return;
00802 break;
00803
00804 case 3:
00805 if (xw < yw + bias) return;
00806 break;
00807 }
00808 }
00809
00810 if (x + w >= MapMaxX() - 1) return;
00811 if (y + h >= MapMaxY() - 1) return;
00812
00813 Tile *tile = &_m[TileXY(x, y)];
00814
00815 switch (direction) {
00816 default: NOT_REACHED();
00817 case DIAGDIR_NE:
00818 do {
00819 Tile *tile_cur = tile;
00820
00821 for (uint w_cur = w; w_cur != 0; --w_cur) {
00822 if (GB(*p, 0, 4) >= tile_cur->type_height) tile_cur->type_height = GB(*p, 0, 4);
00823 p++;
00824 tile_cur++;
00825 }
00826 tile += TileDiffXY(0, 1);
00827 } while (--h != 0);
00828 break;
00829
00830 case DIAGDIR_SE:
00831 do {
00832 Tile *tile_cur = tile;
00833
00834 for (uint h_cur = h; h_cur != 0; --h_cur) {
00835 if (GB(*p, 0, 4) >= tile_cur->type_height) tile_cur->type_height = GB(*p, 0, 4);
00836 p++;
00837 tile_cur += TileDiffXY(0, 1);
00838 }
00839 tile += TileDiffXY(1, 0);
00840 } while (--w != 0);
00841 break;
00842
00843 case DIAGDIR_SW:
00844 tile += TileDiffXY(w - 1, 0);
00845 do {
00846 Tile *tile_cur = tile;
00847
00848 for (uint w_cur = w; w_cur != 0; --w_cur) {
00849 if (GB(*p, 0, 4) >= tile_cur->type_height) tile_cur->type_height = GB(*p, 0, 4);
00850 p++;
00851 tile_cur--;
00852 }
00853 tile += TileDiffXY(0, 1);
00854 } while (--h != 0);
00855 break;
00856
00857 case DIAGDIR_NW:
00858 tile += TileDiffXY(0, h - 1);
00859 do {
00860 Tile *tile_cur = tile;
00861
00862 for (uint h_cur = h; h_cur != 0; --h_cur) {
00863 if (GB(*p, 0, 4) >= tile_cur->type_height) tile_cur->type_height = GB(*p, 0, 4);
00864 p++;
00865 tile_cur -= TileDiffXY(0, 1);
00866 }
00867 tile += TileDiffXY(1, 0);
00868 } while (--w != 0);
00869 break;
00870 }
00871 }
00872
00873
00874 #include "table/genland.h"
00875
00876 static void CreateDesertOrRainForest()
00877 {
00878 TileIndex update_freq = MapSize() / 4;
00879 const TileIndexDiffC *data;
00880
00881 for (TileIndex tile = 0; tile != MapSize(); ++tile) {
00882 if ((tile % update_freq) == 0) IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
00883
00884 if (!IsValidTile(tile)) continue;
00885
00886 for (data = _make_desert_or_rainforest_data;
00887 data != endof(_make_desert_or_rainforest_data); ++data) {
00888 TileIndex t = AddTileIndexDiffCWrap(tile, *data);
00889 if (t != INVALID_TILE && (TileHeight(t) >= 4 || IsTileType(t, MP_WATER))) break;
00890 }
00891 if (data == endof(_make_desert_or_rainforest_data)) {
00892 SetTropicZone(tile, TROPICZONE_DESERT);
00893 }
00894 }
00895
00896 for (uint i = 0; i != 256; i++) {
00897 if ((i % 64) == 0) IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
00898
00899 RunTileLoop();
00900 }
00901
00902 for (TileIndex tile = 0; tile != MapSize(); ++tile) {
00903 if ((tile % update_freq) == 0) IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
00904
00905 if (!IsValidTile(tile)) continue;
00906
00907 for (data = _make_desert_or_rainforest_data;
00908 data != endof(_make_desert_or_rainforest_data); ++data) {
00909 TileIndex t = AddTileIndexDiffCWrap(tile, *data);
00910 if (t != INVALID_TILE && IsTileType(t, MP_CLEAR) && IsClearGround(t, CLEAR_DESERT)) break;
00911 }
00912 if (data == endof(_make_desert_or_rainforest_data)) {
00913 SetTropicZone(tile, TROPICZONE_RAINFOREST);
00914 }
00915 }
00916 }
00917
00918 void GenerateLandscape(byte mode)
00919 {
00921 enum GenLandscapeSteps {
00922 GLS_HEIGHTMAP = 3,
00923 GLS_TERRAGENESIS = 5,
00924 GLS_ORIGINAL = 2,
00925 GLS_TROPIC = 12,
00926 GLS_OTHER = 0,
00927 };
00928 uint steps = (_settings_game.game_creation.landscape == LT_TROPIC) ? GLS_TROPIC : GLS_OTHER;
00929
00930 if (mode == GWM_HEIGHTMAP) {
00931 SetGeneratingWorldProgress(GWP_LANDSCAPE, steps + GLS_HEIGHTMAP);
00932 LoadHeightmap(_file_to_saveload.name);
00933 IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
00934 } else if (_settings_game.game_creation.land_generator == LG_TERRAGENESIS) {
00935 SetGeneratingWorldProgress(GWP_LANDSCAPE, steps + GLS_TERRAGENESIS);
00936 GenerateTerrainPerlin();
00937 } else {
00938 SetGeneratingWorldProgress(GWP_LANDSCAPE, steps + GLS_ORIGINAL);
00939 if (_settings_game.construction.freeform_edges) {
00940 for (uint x = 0; x < MapSizeX(); x++) MakeVoid(TileXY(x, 0));
00941 for (uint y = 0; y < MapSizeY(); y++) MakeVoid(TileXY(0, y));
00942 }
00943 switch (_settings_game.game_creation.landscape) {
00944 case LT_ARCTIC: {
00945 uint32 r = Random();
00946
00947 for (uint i = ScaleByMapSize(GB(r, 0, 7) + 950); i != 0; --i) {
00948 GenerateTerrain(2, 0);
00949 }
00950
00951 uint flag = GB(r, 7, 2) | 4;
00952 for (uint i = ScaleByMapSize(GB(r, 9, 7) + 450); i != 0; --i) {
00953 GenerateTerrain(4, flag);
00954 }
00955 break;
00956 }
00957
00958 case LT_TROPIC: {
00959 uint32 r = Random();
00960
00961 for (uint i = ScaleByMapSize(GB(r, 0, 7) + 170); i != 0; --i) {
00962 GenerateTerrain(0, 0);
00963 }
00964
00965 uint flag = GB(r, 7, 2) | 4;
00966 for (uint i = ScaleByMapSize(GB(r, 9, 8) + 1700); i != 0; --i) {
00967 GenerateTerrain(0, flag);
00968 }
00969
00970 flag ^= 2;
00971
00972 for (uint i = ScaleByMapSize(GB(r, 17, 7) + 410); i != 0; --i) {
00973 GenerateTerrain(3, flag);
00974 }
00975 break;
00976 }
00977
00978 default: {
00979 uint32 r = Random();
00980
00981 assert(_settings_game.difficulty.quantity_sea_lakes != CUSTOM_SEA_LEVEL_NUMBER_DIFFICULTY);
00982 uint i = ScaleByMapSize(GB(r, 0, 7) + (3 - _settings_game.difficulty.quantity_sea_lakes) * 256 + 100);
00983 for (; i != 0; --i) {
00984 GenerateTerrain(_settings_game.difficulty.terrain_type, 0);
00985 }
00986 break;
00987 }
00988 }
00989 }
00990
00991
00992
00993 FixSlopes();
00994 IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
00995 ConvertGroundTilesIntoWaterTiles();
00996 IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
00997
00998 if (_settings_game.game_creation.landscape == LT_TROPIC) CreateDesertOrRainForest();
00999 }
01000
01001 void OnTick_Town();
01002 void OnTick_Trees();
01003 void OnTick_Station();
01004 void OnTick_Industry();
01005
01006 void OnTick_Companies();
01007 void OnTick_LinkGraph();
01008
01009 void CallLandscapeTick()
01010 {
01011 OnTick_Town();
01012 OnTick_Trees();
01013 OnTick_Station();
01014 OnTick_Industry();
01015
01016 OnTick_Companies();
01017 OnTick_LinkGraph();
01018 }