Files
@ r7883:349f8eeb6fdf
Branch filter:
Location: cpp/openttd-patchpack/source/src/clear_cmd.cpp
r7883:349f8eeb6fdf
22.3 KiB
text/x-c
(svn r11434) -Fix: fixed a string in finnish (suggested by ln-)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 | /* $Id$ */
/** @file clear_cmd.cpp */
#include "stdafx.h"
#include "openttd.h"
#include "clear_map.h"
#include "rail_map.h"
#include "table/strings.h"
#include "functions.h"
#include "map.h"
#include "player.h"
#include "tile.h"
#include "viewport.h"
#include "command.h"
#include "tunnel_map.h"
#include "bridge_map.h"
#include "bridge.h"
#include "landscape.h"
#include "variables.h"
#include "table/sprites.h"
#include "unmovable_map.h"
#include "genworld.h"
#include "industry.h"
#include "water_map.h"
/*
* In one terraforming command all four corners of a initial tile can be raised/lowered (though this is not available to the player).
* The maximal amount of height modifications is archieved when raising a complete flat land from sea level to MAX_TILE_HEIGHT or vice versa.
* This affects all corners with a manhatten distance smaller than MAX_TILE_HEIGHT to one of the initial 4 corners.
* Their maximal amount is computed to 4 * \sum_{i=1}^{h_max} i = 2 * h_max * (h_max + 1).
*/
static const int TERRAFORMER_MODHEIGHT_SIZE = 2 * MAX_TILE_HEIGHT * (MAX_TILE_HEIGHT + 1);
/*
* The maximal amount of affected tiles (i.e. the tiles that incident with one of the corners above, is computed similiar to
* 1 + 4 * \sum_{i=1}^{h_max} (i+1) = 1 + 2 * h_max + (h_max + 3).
*/
static const int TERRAFORMER_TILE_TABLE_SIZE = 1 + 2 * MAX_TILE_HEIGHT * (MAX_TILE_HEIGHT + 3);
struct TerraformerHeightMod {
TileIndex tile; ///< Referenced tile.
byte height; ///< New TileHeight (height of north corner) of the tile.
};
struct TerraformerState {
int modheight_count; ///< amount of entries in "modheight".
int tile_table_count; ///< amount of entries in "tile_table".
/**
* Dirty tiles, i.e.\ at least one corner changed.
*
* This array contains the tiles which are or will be marked as dirty.
*
* @ingroup dirty
*/
TileIndex tile_table[TERRAFORMER_TILE_TABLE_SIZE];
TerraformerHeightMod modheight[TERRAFORMER_MODHEIGHT_SIZE]; ///< Height modifications.
};
/**
* Gets the TileHeight (height of north corner) of a tile as of current terraforming progress.
*
* @param ts TerraformerState.
* @param tile Tile.
* @return TileHeight.
*/
static int TerraformGetHeightOfTile(TerraformerState *ts, TileIndex tile)
{
TerraformerHeightMod *mod = ts->modheight;
int count;
for (count = ts->modheight_count; count != 0; count--, mod++) {
if (mod->tile == tile) return mod->height;
}
/* TileHeight unchanged so far, read value from map. */
return TileHeight(tile);
}
/**
* Stores the TileHeight (height of north corner) of a tile in a TerraformerState.
*
* @param ts TerraformerState.
* @param tile Tile.
* @param height New TileHeight.
*/
static void TerraformSetHeightOfTile(TerraformerState *ts, TileIndex tile, int height)
{
/* Find tile in the "modheight" table.
* Note: In a normal user-terraform command the tile will not be found in the "modheight" table.
* But during house- or industry-construction multiple corners can be terraformed at once. */
TerraformerHeightMod *mod = ts->modheight;
int count = ts->modheight_count;
while ((count > 0) && (mod->tile != tile)) {
mod++;
count--;
}
/* New entry? */
if (count == 0) {
assert(ts->modheight_count < TERRAFORMER_MODHEIGHT_SIZE);
ts->modheight_count++;
}
/* Finally store the new value */
mod->tile = tile;
mod->height = (byte)height;
}
/**
* Adds a tile to the "tile_table" in a TerraformerState.
*
* @param ts TerraformerState.
* @param tile Tile.
* @ingroup dirty
*/
static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile)
{
int count;
TileIndex *t;
count = ts->tile_table_count;
for (t = ts->tile_table; count != 0; count--, t++) {
if (*t == tile) return;
}
assert(ts->tile_table_count < TERRAFORMER_TILE_TABLE_SIZE);
ts->tile_table[ts->tile_table_count++] = tile;
}
/**
* Adds all tiles that incident with the north corner of a specific tile to the "tile_table" in a TerraformerState.
*
* @param ts TerraformerState.
* @param tile Tile.
* @ingroup dirty
*/
static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
{
TerraformAddDirtyTile(ts, tile + TileDiffXY( 0, -1));
TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, -1));
TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, 0));
TerraformAddDirtyTile(ts, tile);
}
/**
* Terraform the north corner of a tile to a specific height.
*
* @param ts TerraformerState.
* @param tile Tile.
* @param height Aimed height.
* @param return Error code or cost.
*/
static CommandCost TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height)
{
CommandCost total_cost = CommandCost();
assert(tile < MapSize());
/* Check range of destination height */
if (height < 0) return_cmd_error(STR_1003_ALREADY_AT_SEA_LEVEL);
if (height > MAX_TILE_HEIGHT) return_cmd_error(STR_1004_TOO_HIGH);
/*
* Check if the terraforming has any effect.
* This can only be true, if multiple corners of the start-tile are terraformed (i.e. the terraforming is done by towns/industries etc.).
* In this case the terraforming should fail. (Don't know why.)
*/
if (height == TerraformGetHeightOfTile(ts, tile)) return CMD_ERROR;
/* Check "too close to edge of map" */
uint x = TileX(tile);
uint y = TileY(tile);
if ((x <= 1) || (y <= 1) || (x >= MapMaxX() - 1) || (y >= MapMaxY() - 1)) {
/*
* Determine a sensible error tile
* Note: If x and y are both zero this will disable the error tile. (Tile 0 cannot be highlighted :( )
*/
if ((x == 1) && (y != 0)) x = 0;
if ((y == 1) && (x != 0)) y = 0;
_terraform_err_tile = TileXY(x, y);
return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);
}
/* Mark incident tiles, that are involved in the terraforming */
TerraformAddDirtyTileAround(ts, tile);
/* Store the height modification */
TerraformSetHeightOfTile(ts, tile, height);
/* Increment cost */
total_cost.AddCost(_price.terraform);
/* Recurse to neighboured corners if height difference is larger than 1 */
{
const TileIndexDiffC *ttm;
static const TileIndexDiffC _terraform_tilepos[] = {
{ 1, 0}, // move to tile in SE
{-2, 0}, // undo last move, and move to tile in NW
{ 1, 1}, // undo last move, and move to tile in SW
{ 0, -2} // undo last move, and move to tile in NE
};
for (ttm = _terraform_tilepos; ttm != endof(_terraform_tilepos); ttm++) {
tile += ToTileIndexDiff(*ttm);
/* Get TileHeight of neighboured tile as of current terraform progress */
int r = TerraformGetHeightOfTile(ts, tile);
int height_diff = height - r;
/* Is the height difference to the neighboured corner greater than 1? */
if (abs(height_diff) > 1) {
/* Terraform the neighboured corner. The resulting height difference should be 1. */
height_diff += (height_diff < 0 ? 1 : -1);
CommandCost cost = TerraformTileHeight(ts, tile, r + height_diff);
if (CmdFailed(cost)) return cost;
total_cost.AddCost(cost);
}
}
}
return total_cost;
}
/** Terraform land
* @param tile tile to terraform
* @param flags for this command type
* @param p1 corners to terraform (SLOPE_xxx)
* @param p2 direction; eg up (non-zero) or down (zero)
* @return error or cost of terraforming
*/
CommandCost CmdTerraformLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
TerraformerState ts;
CommandCost total_cost = CommandCost();
int direction = (p2 != 0 ? 1 : -1);
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
_terraform_err_tile = 0;
ts.modheight_count = ts.tile_table_count = 0;
/* Make an extra check for map-bounds cause we add tiles to the originating tile */
if (tile + TileDiffXY(1, 1) >= MapSize()) return CMD_ERROR;
/* Compute the costs and the terraforming result in a model of the landscape */
if ((p1 & SLOPE_W) != 0) {
TileIndex t = tile + TileDiffXY(1, 0);
CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
if (CmdFailed(cost)) return cost;
total_cost.AddCost(cost);
}
if ((p1 & SLOPE_S) != 0) {
TileIndex t = tile + TileDiffXY(1, 1);
CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
if (CmdFailed(cost)) return cost;
total_cost.AddCost(cost);
}
if ((p1 & SLOPE_E) != 0) {
TileIndex t = tile + TileDiffXY(0, 1);
CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
if (CmdFailed(cost)) return cost;
total_cost.AddCost(cost);
}
if ((p1 & SLOPE_N) != 0) {
TileIndex t = tile + TileDiffXY(0, 0);
CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
if (CmdFailed(cost)) return cost;
total_cost.AddCost(cost);
}
/* Check if the terraforming is valid wrt. tunnels, bridges and objects on the surface */
{
int count;
TileIndex *ti = ts.tile_table;
for (count = ts.tile_table_count; count != 0; count--, ti++) {
TileIndex tile = *ti;
/* Find new heights of tile corners */
uint z_N = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 0));
uint z_W = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 0));
uint z_S = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 1));
uint z_E = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 1));
/* Find min and max height of tile */
uint z_min = min(min(z_N, z_W), min(z_S, z_E));
uint z_max = max(max(z_N, z_W), max(z_S, z_E));
/* Compute tile slope */
uint tileh = (z_max > z_min + 1 ? SLOPE_STEEP : SLOPE_FLAT);
if (z_W > z_min) tileh += SLOPE_W;
if (z_S > z_min) tileh += SLOPE_S;
if (z_E > z_min) tileh += SLOPE_E;
if (z_N > z_min) tileh += SLOPE_N;
/* Check if bridge would take damage */
if (direction == 1 && MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) &&
GetBridgeHeight(GetSouthernBridgeEnd(tile)) <= z_max * TILE_HEIGHT) {
_terraform_err_tile = tile; // highlight the tile under the bridge
return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
}
/* Check if tunnel would take damage */
if (direction == -1 && IsTunnelInWay(tile, z_min * TILE_HEIGHT)) {
_terraform_err_tile = tile; // highlight the tile above the tunnel
return_cmd_error(STR_1002_EXCAVATION_WOULD_DAMAGE);
}
/* Check tiletype-specific things, and add extra-cost */
CommandCost cost = _tile_type_procs[GetTileType(tile)]->terraform_tile_proc(tile, flags | DC_AUTO, z_min * TILE_HEIGHT, (Slope) tileh);
if (CmdFailed(cost)) {
_terraform_err_tile = tile;
return cost;
}
total_cost.AddCost(cost);
}
}
if (flags & DC_EXEC) {
/* change the height */
{
int count;
TerraformerHeightMod *mod;
mod = ts.modheight;
for (count = ts.modheight_count; count != 0; count--, mod++) {
TileIndex til = mod->tile;
SetTileHeight(til, mod->height);
}
}
/* finally mark the dirty tiles dirty */
{
int count;
TileIndex *ti = ts.tile_table;
for (count = ts.tile_table_count; count != 0; count--, ti++) {
MarkTileDirtyByTile(*ti);
}
}
}
return total_cost;
}
/** Levels a selected (rectangle) area of land
* @param tile end tile of area-drag
* @param flags for this command type
* @param p1 start tile of area drag
* @param p2 unused
* @return error or cost of terraforming
*/
CommandCost CmdLevelLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
int size_x, size_y;
int ex;
int ey;
int sx, sy;
uint h, curh;
CommandCost money;
CommandCost ret;
CommandCost cost;
if (p1 >= MapSize()) return CMD_ERROR;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
/* remember level height */
h = TileHeight(p1);
/* make sure sx,sy are smaller than ex,ey */
ex = TileX(tile);
ey = TileY(tile);
sx = TileX(p1);
sy = TileY(p1);
if (ex < sx) Swap(ex, sx);
if (ey < sy) Swap(ey, sy);
tile = TileXY(sx, sy);
size_x = ex - sx + 1;
size_y = ey - sy + 1;
money.AddCost(GetAvailableMoneyForCommand());
BEGIN_TILE_LOOP(tile2, size_x, size_y, tile) {
curh = TileHeight(tile2);
while (curh != h) {
ret = DoCommand(tile2, SLOPE_N, (curh > h) ? 0 : 1, flags & ~DC_EXEC, CMD_TERRAFORM_LAND);
if (CmdFailed(ret)) break;
if (flags & DC_EXEC) {
money.AddCost(-ret.GetCost());
if (money.GetCost() < 0) {
_additional_cash_required = ret.GetCost();
return cost;
}
DoCommand(tile2, SLOPE_N, (curh > h) ? 0 : 1, flags, CMD_TERRAFORM_LAND);
}
cost.AddCost(ret);
curh += (curh > h) ? -1 : 1;
}
} END_TILE_LOOP(tile2, size_x, size_y, tile)
return (cost.GetCost() == 0) ? CMD_ERROR : cost;
}
/** Purchase a land area. Actually you only purchase one tile, so
* the name is a bit confusing ;p
* @param tile the tile the player is purchasing
* @param flags for this command type
* @param p1 unused
* @param p2 unused
* @return error of cost of operation
*/
CommandCost CmdPurchaseLandArea(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
CommandCost cost;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
if (IsOwnedLandTile(tile) && IsTileOwner(tile, _current_player)) {
return_cmd_error(STR_5807_YOU_ALREADY_OWN_IT);
}
cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (CmdFailed(cost)) return CMD_ERROR;
if (flags & DC_EXEC) {
MakeOwnedLand(tile, _current_player);
MarkTileDirtyByTile(tile);
}
return cost.AddCost(_price.purchase_land * 10);
}
static CommandCost ClearTile_Clear(TileIndex tile, byte flags)
{
static const Money* clear_price_table[] = {
&_price.clear_1,
&_price.purchase_land,
&_price.clear_2,
&_price.clear_3,
&_price.purchase_land,
&_price.purchase_land,
&_price.clear_2, // XXX unused?
};
CommandCost price;
if (!IsClearGround(tile, CLEAR_GRASS) || GetClearDensity(tile) != 0) {
price.AddCost(*clear_price_table[GetClearGround(tile)]);
}
if (flags & DC_EXEC) DoClearSquare(tile);
return price;
}
/** Sell a land area. Actually you only sell one tile, so
* the name is a bit confusing ;p
* @param tile the tile the player is selling
* @param flags for this command type
* @param p1 unused
* @param p2 unused
* @return error or cost of operation
*/
CommandCost CmdSellLandArea(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
if (!IsOwnedLandTile(tile)) return CMD_ERROR;
if (!CheckTileOwnership(tile) && _current_player != OWNER_WATER) return CMD_ERROR;
if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
if (flags & DC_EXEC) DoClearSquare(tile);
return CommandCost(- _price.purchase_land * 2);
}
#include "table/clear_land.h"
void DrawClearLandTile(const TileInfo *ti, byte set)
{
DrawGroundSprite(SPR_FLAT_BARE_LAND + _tileh_to_sprite[ti->tileh] + set * 19, PAL_NONE);
}
void DrawHillyLandTile(const TileInfo *ti)
{
if (ti->tileh != SLOPE_FLAT) {
DrawGroundSprite(SPR_FLAT_ROUGH_LAND + _tileh_to_sprite[ti->tileh], PAL_NONE);
} else {
DrawGroundSprite(_landscape_clear_sprites[GB(ti->x ^ ti->y, 4, 3)], PAL_NONE);
}
}
void DrawClearLandFence(const TileInfo *ti)
{
byte z = ti->z;
if (ti->tileh & SLOPE_S) {
z += TILE_HEIGHT;
if (ti->tileh == SLOPE_STEEP_S) z += TILE_HEIGHT;
}
if (GetFenceSW(ti->tile) != 0) {
DrawGroundSpriteAt(_clear_land_fence_sprites_1[GetFenceSW(ti->tile) - 1] + _fence_mod_by_tileh[ti->tileh], PAL_NONE, ti->x, ti->y, z);
}
if (GetFenceSE(ti->tile) != 0) {
DrawGroundSpriteAt(_clear_land_fence_sprites_1[GetFenceSE(ti->tile) - 1] + _fence_mod_by_tileh_2[ti->tileh], PAL_NONE, ti->x, ti->y, z);
}
}
static void DrawTile_Clear(TileInfo *ti)
{
switch (GetClearGround(ti->tile)) {
case CLEAR_GRASS:
DrawClearLandTile(ti, GetClearDensity(ti->tile));
break;
case CLEAR_ROUGH:
DrawHillyLandTile(ti);
break;
case CLEAR_ROCKS:
DrawGroundSprite(SPR_FLAT_ROCKY_LAND_1 + _tileh_to_sprite[ti->tileh], PAL_NONE);
break;
case CLEAR_FIELDS:
DrawGroundSprite(_clear_land_sprites_1[GetFieldType(ti->tile)] + _tileh_to_sprite[ti->tileh], PAL_NONE);
break;
case CLEAR_SNOW:
DrawGroundSprite(_clear_land_sprites_2[GetClearDensity(ti->tile)] + _tileh_to_sprite[ti->tileh], PAL_NONE);
break;
case CLEAR_DESERT:
DrawGroundSprite(_clear_land_sprites_3[GetClearDensity(ti->tile)] + _tileh_to_sprite[ti->tileh], PAL_NONE);
break;
}
DrawClearLandFence(ti);
DrawBridgeMiddle(ti);
}
static uint GetSlopeZ_Clear(TileIndex tile, uint x, uint y)
{
uint z;
Slope tileh = GetTileSlope(tile, &z);
return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
}
static Foundation GetFoundation_Clear(TileIndex tile, Slope tileh)
{
return FOUNDATION_NONE;
}
static void GetAcceptedCargo_Clear(TileIndex tile, AcceptedCargo ac)
{
/* unused */
}
static void AnimateTile_Clear(TileIndex tile)
{
/* unused */
}
void TileLoopClearHelper(TileIndex tile)
{
byte self;
byte neighbour;
TileIndex dirty = INVALID_TILE;
self = (IsTileType(tile, MP_CLEAR) && IsClearGround(tile, CLEAR_FIELDS));
neighbour = (IsTileType(TILE_ADDXY(tile, 1, 0), MP_CLEAR) && IsClearGround(TILE_ADDXY(tile, 1, 0), CLEAR_FIELDS));
if (GetFenceSW(tile) == 0) {
if (self != neighbour) {
SetFenceSW(tile, 3);
dirty = tile;
}
} else {
if (self == 0 && neighbour == 0) {
SetFenceSW(tile, 0);
dirty = tile;
}
}
neighbour = (IsTileType(TILE_ADDXY(tile, 0, 1), MP_CLEAR) && IsClearGround(TILE_ADDXY(tile, 0, 1), CLEAR_FIELDS));
if (GetFenceSE(tile) == 0) {
if (self != neighbour) {
SetFenceSE(tile, 3);
dirty = tile;
}
} else {
if (self == 0 && neighbour == 0) {
SetFenceSE(tile, 0);
dirty = tile;
}
}
if (dirty != INVALID_TILE) MarkTileDirtyByTile(dirty);
}
/* convert into snowy tiles */
static void TileLoopClearAlps(TileIndex tile)
{
int k = GetTileZ(tile) - GetSnowLine() + TILE_HEIGHT;
if (k < 0) { // well below the snow line
if (!IsClearGround(tile, CLEAR_SNOW)) return;
if (GetClearDensity(tile) == 0) SetClearGroundDensity(tile, CLEAR_GRASS, 3);
} else {
if (!IsClearGround(tile, CLEAR_SNOW)) {
SetClearGroundDensity(tile, CLEAR_SNOW, 0);
} else {
uint density = min((uint)k / TILE_HEIGHT, 3);
if (GetClearDensity(tile) < density) {
AddClearDensity(tile, 1);
} else if (GetClearDensity(tile) > density) {
AddClearDensity(tile, -1);
} else {
return;
}
}
}
MarkTileDirtyByTile(tile);
}
static void TileLoopClearDesert(TileIndex tile)
{
if (IsClearGround(tile, CLEAR_DESERT)) return;
if (GetTropicZone(tile) == TROPICZONE_DESERT) {
SetClearGroundDensity(tile, CLEAR_DESERT, 3);
} else {
if (GetTropicZone(tile + TileDiffXY( 1, 0)) != TROPICZONE_DESERT &&
GetTropicZone(tile + TileDiffXY(-1, 0)) != TROPICZONE_DESERT &&
GetTropicZone(tile + TileDiffXY( 0, 1)) != TROPICZONE_DESERT &&
GetTropicZone(tile + TileDiffXY( 0, -1)) != TROPICZONE_DESERT)
return;
SetClearGroundDensity(tile, CLEAR_DESERT, 1);
}
MarkTileDirtyByTile(tile);
}
static void TileLoop_Clear(TileIndex tile)
{
TileLoopClearHelper(tile);
switch (_opt.landscape) {
case LT_TROPIC: TileLoopClearDesert(tile); break;
case LT_ARCTIC: TileLoopClearAlps(tile); break;
}
switch (GetClearGround(tile)) {
case CLEAR_GRASS:
if (GetClearDensity(tile) == 3) return;
if (_game_mode != GM_EDITOR) {
if (GetClearCounter(tile) < 7) {
AddClearCounter(tile, 1);
return;
} else {
SetClearCounter(tile, 0);
AddClearDensity(tile, 1);
}
} else {
SetClearGroundDensity(tile, GB(Random(), 0, 8) > 21 ? CLEAR_GRASS : CLEAR_ROUGH, 3);
}
break;
case CLEAR_FIELDS: {
uint field_type;
if (_game_mode == GM_EDITOR) return;
if (GetClearCounter(tile) < 7) {
AddClearCounter(tile, 1);
return;
} else {
SetClearCounter(tile, 0);
}
if (GetIndustryIndexOfField(tile) == INVALID_INDUSTRY && GetFieldType(tile) >= 7) {
/* This farmfield is no longer farmfield, so make it grass again */
MakeClear(tile, CLEAR_GRASS, 2);
} else {
field_type = GetFieldType(tile);
field_type = (field_type < 8) ? field_type + 1 : 0;
SetFieldType(tile, field_type);
}
break;
}
default:
return;
}
MarkTileDirtyByTile(tile);
}
void GenerateClearTile()
{
uint i, gi;
TileIndex tile;
/* add rough tiles */
i = ScaleByMapSize(GB(Random(), 0, 10) + 0x400);
gi = ScaleByMapSize(GB(Random(), 0, 7) + 0x80);
SetGeneratingWorldProgress(GWP_ROUGH_ROCKY, gi + i);
do {
IncreaseGeneratingWorldProgress(GWP_ROUGH_ROCKY);
tile = RandomTile();
if (IsTileType(tile, MP_CLEAR) && !IsClearGround(tile, CLEAR_DESERT)) SetClearGroundDensity(tile, CLEAR_ROUGH, 3);
} while (--i);
/* add rocky tiles */
i = gi;
do {
uint32 r = Random();
tile = RandomTileSeed(r);
IncreaseGeneratingWorldProgress(GWP_ROUGH_ROCKY);
if (IsTileType(tile, MP_CLEAR) && !IsClearGround(tile, CLEAR_DESERT)) {
uint j = GB(r, 16, 4) + 5;
for (;;) {
TileIndex tile_new;
SetClearGroundDensity(tile, CLEAR_ROCKS, 3);
do {
if (--j == 0) goto get_out;
tile_new = tile + TileOffsByDiagDir((DiagDirection)GB(Random(), 0, 2));
} while (!IsTileType(tile_new, MP_CLEAR) || IsClearGround(tile_new, CLEAR_DESERT));
tile = tile_new;
}
get_out:;
}
} while (--i);
}
static void ClickTile_Clear(TileIndex tile)
{
/* not used */
}
static uint32 GetTileTrackStatus_Clear(TileIndex tile, TransportType mode, uint sub_mode)
{
return 0;
}
static const StringID _clear_land_str[] = {
STR_080D_GRASS,
STR_080B_ROUGH_LAND,
STR_080A_ROCKS,
STR_080E_FIELDS,
STR_080F_SNOW_COVERED_LAND,
STR_0810_DESERT
};
static void GetTileDesc_Clear(TileIndex tile, TileDesc *td)
{
if (IsClearGround(tile, CLEAR_GRASS) && GetClearDensity(tile) == 0) {
td->str = STR_080C_BARE_LAND;
} else {
td->str = _clear_land_str[GetClearGround(tile)];
}
td->owner = GetTileOwner(tile);
}
static void ChangeTileOwner_Clear(TileIndex tile, PlayerID old_player, PlayerID new_player)
{
return;
}
void InitializeClearLand()
{
_opt.snow_line = _patches.snow_line_height * TILE_HEIGHT;
}
static CommandCost TerraformTile_Clear(TileIndex tile, uint32 flags, uint z_new, Slope tileh_new)
{
return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
}
extern const TileTypeProcs _tile_type_clear_procs = {
DrawTile_Clear, ///< draw_tile_proc
GetSlopeZ_Clear, ///< get_slope_z_proc
ClearTile_Clear, ///< clear_tile_proc
GetAcceptedCargo_Clear, ///< get_accepted_cargo_proc
GetTileDesc_Clear, ///< get_tile_desc_proc
GetTileTrackStatus_Clear, ///< get_tile_track_status_proc
ClickTile_Clear, ///< click_tile_proc
AnimateTile_Clear, ///< animate_tile_proc
TileLoop_Clear, ///< tile_loop_clear
ChangeTileOwner_Clear, ///< change_tile_owner_clear
NULL, ///< get_produced_cargo_proc
NULL, ///< vehicle_enter_tile_proc
GetFoundation_Clear, ///< get_foundation_proc
TerraformTile_Clear, ///< terraform_tile_proc
};
|