summaryrefslogtreecommitdiff
path: root/clear_cmd.c
diff options
context:
space:
mode:
Diffstat (limited to 'clear_cmd.c')
-rw-r--r--clear_cmd.c806
1 files changed, 806 insertions, 0 deletions
diff --git a/clear_cmd.c b/clear_cmd.c
new file mode 100644
index 000000000..6645b5f9c
--- /dev/null
+++ b/clear_cmd.c
@@ -0,0 +1,806 @@
+#include "stdafx.h"
+#include "ttd.h"
+#include "viewport.h"
+#include "command.h"
+
+typedef struct TerraformerHeightMod {
+ TileIndex tile;
+ byte height;
+} TerraformerHeightMod;
+
+typedef struct TerraformerState {
+ int height[4];
+ uint32 flags;
+
+ int direction;
+ int modheight_count;
+ int tile_table_count;
+
+ int32 cost;
+
+ TileIndex *tile_table;
+ TerraformerHeightMod *modheight;
+
+} TerraformerState;
+
+static int TerraformAllowTileProcess(TerraformerState *ts, TileIndex tile)
+{
+ TileIndex *t;
+ int count;
+
+ if ((GET_TILE_X(tile) == TILE_X_MAX) || (GET_TILE_Y(tile) == TILE_Y_MAX))
+ return -1;
+
+ t = ts->tile_table;
+ for(count = ts->tile_table_count; count != 0; count--,t++) {
+ if (*t == tile)
+ return 0;
+ }
+
+ return 1;
+}
+
+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;
+ }
+
+ return _map_type_and_height[tile] & 0xF;
+}
+
+static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile)
+{
+ int count;
+ TileIndex *t;
+
+ count = ts->tile_table_count;
+
+ if (count >= 625)
+ return;
+
+ for(t = ts->tile_table; count != 0; count--,t++) {
+ if (*t == tile)
+ return;
+ }
+
+ ts->tile_table[ts->tile_table_count++] = tile;
+}
+
+static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
+{
+ TerraformAddDirtyTile(ts, tile+TILE_XY(0,-1));
+ TerraformAddDirtyTile(ts, tile+TILE_XY(-1,-1));
+ TerraformAddDirtyTile(ts, tile+TILE_XY(-1,0));
+ TerraformAddDirtyTile(ts, tile);
+}
+
+static int TerraformProc(TerraformerState *ts, uint tile, int mode)
+{
+ int r;
+ int32 ret;
+
+ assert(tile < TILES_X * TILES_Y);
+
+ if ((r=TerraformAllowTileProcess(ts, tile)) <= 0)
+ return r;
+
+ if ((_map_type_and_height[tile] >> 4) == MP_RAILWAY) {
+ static const byte _railway_modes[4] = {8, 0x10, 4, 0x20};
+ static const byte _railway_dangslopes[4] = {0xd, 0xe, 7, 0xb};
+
+ // Nothing could be built at the steep slope - this avoids a bug
+ // when you have a single diagonal track in one corner on a
+ // basement and then you raise the other corner.
+ if ((GetTileSlope(tile, NULL)&0xF) == _railway_dangslopes[mode]) {
+ _error_message = STR_1008_MUST_REMOVE_RAILROAD_TRACK;
+ return -1;
+ }
+
+ // If we have a single diagonal track there, the other side of
+ // tile can be terraformed.
+ if ((_map5[tile]&~0x40) == _railway_modes[mode])
+ return 0;
+ }
+
+ ret = DoCommandByTile(tile, 0,0, ts->flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR);
+
+ if (ret == CMD_ERROR) {
+ _terraform_err_tile = tile;
+ return -1;
+ }
+
+ ts->cost += ret;
+
+ if (ts->tile_table_count >= 625)
+ return -1;
+ ts->tile_table[ts->tile_table_count++] = tile;
+
+ return 0;
+}
+
+static bool TerraformTileHeight(TerraformerState *ts, uint tile, int height)
+{
+ int nh;
+ TerraformerHeightMod *mod;
+ int count;
+
+ assert(tile < TILES_X * TILES_Y);
+
+ if (height < 0) {
+ _error_message = STR_1003_ALREADY_AT_SEA_LEVEL;
+ return false;
+ }
+
+ _error_message = STR_1004_TOO_HIGH;
+
+ if (height > 0xF)
+ return false;
+
+ nh = TerraformGetHeightOfTile(ts, tile);
+ if (nh < 0 || height == nh)
+ return false;
+
+ if (TerraformProc(ts, tile, 0)<0)
+ return false;
+
+ if (TerraformProc(ts, tile + TILE_XY(0,-1), 1)<0)
+ return false;
+
+ if (TerraformProc(ts, tile + TILE_XY(-1,-1), 2)<0)
+ return false;
+
+ if (TerraformProc(ts, tile + TILE_XY(-1,0), 3)<0)
+ return false;
+
+ mod = ts->modheight;
+ count = ts->modheight_count;
+
+ for(;;) {
+ if (count == 0) {
+ if (ts->modheight_count >= 576)
+ return false;
+ ts->modheight_count++;
+ break;
+ }
+ if (mod->tile == (TileIndex)tile)
+ break;
+ mod++;
+ count--;
+ }
+
+ mod->tile = (TileIndex)tile;
+ mod->height = (byte)height;
+
+ ts->cost += _price.terraform;
+
+ {
+ int direction = ts->direction, r;
+ const TileIndexDiff *ttm;
+
+ static const TileIndexDiff _terraform_tilepos[5] = {TILE_XY(1,0), TILE_XY(-2,0), TILE_XY(1,1), TILE_XY(0,-2), 0 };
+
+ for(ttm = _terraform_tilepos; *ttm != 0; ttm++) {
+ tile += *ttm;
+
+ r = TerraformGetHeightOfTile(ts, tile);
+ if (r != height && r-direction != height && r+direction != height) {
+ if (!TerraformTileHeight(ts, tile, r+direction))
+ return false;
+ }
+ }
+ }
+
+ return true;
+}
+
+/* Terraform land
+ * p1 - corners
+ * p2 - direction
+ */
+
+int32 CmdTerraformLand(int x, int y, uint32 flags, uint32 p1, uint32 p2)
+{
+ TerraformerState ts;
+ uint tile;
+ int direction;
+
+ TerraformerHeightMod modheight_data[576];
+ TileIndex tile_table_data[625];
+
+ SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
+
+ _error_message = INVALID_STRING_ID;
+ _terraform_err_tile = 0;
+
+ ts.direction = direction = p2 ? 1 : -1;
+ ts.flags = flags;
+ ts.modheight_count = ts.tile_table_count = 0;
+ ts.cost = 0;
+ ts.modheight = modheight_data;
+ ts.tile_table = tile_table_data;
+
+ tile = TILE_FROM_XY(x,y);
+
+ if (p1 & 1) {
+ if (!TerraformTileHeight(&ts, tile+TILE_XY(1,0),
+ (_map_type_and_height[tile+TILE_XY(1,0)]&0xF) + direction))
+ return CMD_ERROR;
+ }
+
+ if (p1 & 2) {
+ if (!TerraformTileHeight(&ts, tile+TILE_XY(1,1),
+ (_map_type_and_height[tile+TILE_XY(1,1)]&0xF) + direction))
+ return CMD_ERROR;
+ }
+
+ if (p1 & 4) {
+ if (!TerraformTileHeight(&ts, tile+TILE_XY(0,1),
+ (_map_type_and_height[tile+TILE_XY(0,1)]&0xF) + direction))
+ return CMD_ERROR;
+ }
+
+ if (p1 & 8) {
+ if (!TerraformTileHeight(&ts, tile+TILE_XY(0,0),
+ (_map_type_and_height[tile+TILE_XY(0,0)]&0xF) + direction))
+ return CMD_ERROR;
+ }
+
+ if (direction == -1) {
+ /* Check if tunnel would take damage */
+ int count;
+ TileIndex *ti = ts.tile_table;
+
+ for(count = ts.tile_table_count; count != 0; count--, ti++) {
+ uint z, t;
+ uint tile = *ti;
+
+ z = TerraformGetHeightOfTile(&ts, tile + TILE_XY(0,0));
+ t = TerraformGetHeightOfTile(&ts, tile + TILE_XY(1,0));
+ if (t <= z) z = t;
+ t = TerraformGetHeightOfTile(&ts, tile + TILE_XY(1,1));
+ if (t <= z) z = t;
+ t = TerraformGetHeightOfTile(&ts, tile + TILE_XY(0,1));
+ if (t <= z) z = t;
+
+ if (!CheckTunnelInWay(tile, z*8))
+ return_cmd_error(STR_1002_EXCAVATION_WOULD_DAMAGE);
+ }
+ }
+
+ if (flags & DC_EXEC) {
+ /* Clear the landscape at the tiles */
+ {
+ int count;
+ TileIndex *ti = ts.tile_table;
+ for(count = ts.tile_table_count; count != 0; count--, ti++) {
+ DoCommandByTile(*ti, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
+ }
+ }
+
+ /* change the height */
+ {
+ int count;
+ TerraformerHeightMod *mod;
+ uint til;
+
+ mod = ts.modheight;
+ for(count = ts.modheight_count; count != 0; count--, mod++) {
+ til = mod->tile;
+
+ // Change tile height
+ _map_type_and_height[til] = (_map_type_and_height[til]&~0x0F)|mod->height;
+
+ TerraformAddDirtyTileAround(&ts, til);
+ }
+ }
+
+ /* 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 ts.cost;
+}
+
+
+/*
+ * p1 - start
+ */
+
+int32 CmdLevelLand(int ex, int ey, uint32 flags, uint32 p1, uint32 p2)
+{
+ int size_x, size_y;
+ int sx, sy;
+ uint h, curh;
+ uint tile;
+ int32 ret, cost, money;
+
+ // remember level height
+ h = _map_type_and_height[p1]&0xF;
+
+ ex >>= 4; ey >>= 4;
+
+ // make sure sx,sy are smaller than ex,ey
+ sx = GET_TILE_X(p1);
+ sy = GET_TILE_Y(p1);
+ if (ex < sx) intswap(ex, sx);
+ if (ey < sy) intswap(ey, sy);
+ tile = TILE_XY(sx,sy);
+
+ size_x = ex-sx+1;
+ size_y = ey-sy+1;
+
+ money = GetAvailableMoneyForCommand();
+ cost = 0;
+
+ BEGIN_TILE_LOOP(tile2, size_x, size_y, tile)
+ curh = _map_type_and_height[tile2]&0xF;
+ while (curh != h) {
+ ret = DoCommandByTile(tile2, 8, (curh > h)?0:1, flags & ~DC_EXEC, CMD_TERRAFORM_LAND);
+ if (ret == CMD_ERROR) break;
+ cost += ret;
+
+ if (flags & DC_EXEC) {
+ if ((money -= ret) < 0) {
+ _additional_cash_required = ret;
+ return cost - ret;
+ }
+ DoCommandByTile(tile2, 8, (curh > h)?0:1, flags, CMD_TERRAFORM_LAND);
+ }
+
+ curh += (curh > h) ? -1 : 1;
+ }
+ END_TILE_LOOP(tile2, size_x, size_y, tile)
+
+ if (cost == 0) return CMD_ERROR;
+ return cost;
+}
+
+/* Purchase a land area
+ * p1 = unused
+ * p2 = unused
+ */
+
+int32 CmdPurchaseLandArea(int x, int y, uint32 flags, uint32 p1, uint32 p2)
+{
+ uint tile;
+ int32 cost;
+
+ SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
+
+ tile = TILE_FROM_XY(x,y);
+
+ if (!EnsureNoVehicle(tile))
+ return CMD_ERROR;
+
+ if (IS_TILETYPE(tile, MP_UNMOVABLE) &&
+ _map5[tile] == 3 &&
+ _map_owner[tile] == _current_player)
+ return_cmd_error(STR_5807_YOU_ALREADY_OWN_IT);
+
+ cost = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
+ if (cost == CMD_ERROR)
+ return CMD_ERROR;
+
+ if (flags & DC_EXEC) {
+ ModifyTile(tile,
+ MP_SETTYPE(MP_UNMOVABLE) | MP_MAPOWNER_CURRENT | MP_MAP5,
+ 3 /* map5 */
+ );
+ }
+
+ return cost + _price.purchase_land * 10;
+}
+
+
+int32 ClearTile_Clear(uint tile, byte flags) {
+ static const int32 * _clear_price_table[] = {
+ NULL,
+ &_price.clear_1, &_price.clear_1,&_price.clear_1,
+ &_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,
+ &_price.clear_2,&_price.clear_2,&_price.clear_2,&_price.clear_2,
+ &_price.clear_3,&_price.clear_3,&_price.clear_3,&_price.clear_3,
+ &_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,
+ &_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,
+ &_price.clear_2,&_price.clear_2,&_price.clear_2,&_price.clear_2,
+ };
+ const int32 *price = _clear_price_table[_map5[tile] & 0x1F];
+
+ if (flags & DC_EXEC)
+ DoClearSquare(tile);
+
+ if (price == NULL)
+ return 0;
+ return *price;
+}
+
+int32 CmdSellLandArea(int x, int y, uint32 flags, uint32 p1, uint32 p2)
+{
+ uint tile;
+
+ SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
+
+ tile = TILE_FROM_XY(x,y);
+
+ if (!CheckTileOwnership(tile))
+ return CMD_ERROR;
+
+ if (!EnsureNoVehicle(tile))
+ return CMD_ERROR;
+
+ if (flags & DC_EXEC)
+ DoClearSquare(tile);
+
+ return - _price.purchase_land*2;
+}
+
+
+#include "table/clear_land.h"
+
+
+void DrawClearLandTile(TileInfo *ti, byte set)
+{
+ DrawGroundSprite(0xF54 + _tileh_to_sprite[ti->tileh] + set * 19);
+}
+
+void DrawHillyLandTile(TileInfo *ti)
+{
+ if (ti->tileh != 0) {
+ DrawGroundSprite(0xFA0 + _tileh_to_sprite[ti->tileh]);
+ } else {
+ DrawGroundSprite(_landscape_clear_sprites[((ti->x^ti->y) >> 4) & 0x7]);
+ }
+}
+
+void DrawClearLandFence(TileInfo *ti, byte img)
+{
+ byte z = ti->z;
+
+ if (ti->tileh & 2) {
+ z += 8;
+ if (ti->tileh == 0x17)
+ z += 8;
+ }
+
+ if (img & 0x38) {
+ DrawGroundSpriteAt(_clear_land_fence_sprites_1[((img >> 3) & 7) - 1] + _fence_mod_by_tileh[ti->tileh], ti->x, ti->y, z);
+ }
+
+ if (img & 0x7) {
+ DrawGroundSpriteAt(_clear_land_fence_sprites_1[(img & 7) - 1] + _fence_mod_by_tileh_2[ti->tileh], ti->x, ti->y, z);
+ }
+}
+
+static void DrawTile_Clear(TileInfo *ti)
+{
+
+ switch((ti->map5 & (7<<2)) >> 2) {
+ case 0:
+ DrawClearLandTile(ti, (ti->map5 & 3));
+ break;
+
+ case 1:
+ DrawHillyLandTile(ti);
+ break;
+
+ case 2:
+ DrawGroundSprite(0xFB7 + _tileh_to_sprite[ti->tileh]);
+ break;
+
+ case 3:
+ DrawGroundSprite( _clear_land_sprites_1[_map3_lo[ti->tile]&0xF] + _tileh_to_sprite[ti->tileh]);
+ break;
+
+ case 4:
+ DrawGroundSprite( _clear_land_sprites_2[ti->map5&3] + _tileh_to_sprite[ti->tileh]);
+ break;
+
+ case 5:
+ DrawGroundSprite( _clear_land_sprites_3[ti->map5&3] + _tileh_to_sprite[ti->tileh]);
+ break;
+ }
+
+ DrawClearLandFence(ti, _map3_hi[ti->tile] >> 2);
+}
+
+uint GetSlopeZ_Clear(TileInfo *ti) { return GetPartialZ(ti->x&0xF, ti->y&0xF, ti->tileh) + ti->z; }
+
+static void GetAcceptedCargo_Clear(uint tile, AcceptedCargo *ac)
+{
+ /* unused */
+}
+
+static void AnimateTile_Clear(uint tile)
+{
+ /* unused */
+}
+
+void TileLoopClearHelper(uint tile)
+{
+ byte img_1, img_2;
+ static byte img_by_map5[8] = { 0,0,0,2, 1,1,0,0, };
+ uint dirty = -1;
+
+ img_1 = 0;
+ if (IS_TILETYPE(tile, MP_CLEAR)) {
+ img_1 = img_by_map5[(_map5[tile] & 0x1C) >> 2];
+ } else if (IS_TILETYPE(tile, MP_TREES) && (_map2[tile] & 0x30) == 0x20) {
+ img_1 = 1;
+ }
+
+ img_2 = 0;
+ if (IS_TILETYPE(TILE_ADDXY(tile, 1, 0), MP_CLEAR)) {
+ img_2 = img_by_map5[(_map5[TILE_ADDXY(tile, 1, 0)] & 0x1C) >> 2];
+ } else if (IS_TILETYPE(TILE_ADDXY(tile, 1, 0), MP_TREES) && (_map2[TILE_ADDXY(tile, 1, 0)] & 0x30) == 0x20) {
+ img_2 = 1;
+ }
+
+ if (!(_map3_hi[tile] & 0xE0)) {
+ if ( (img_1&2) != (img_2&2) ) {
+ _map3_hi[tile] |= 3 << 5;
+ dirty = tile;
+ }
+ } else {
+ if (img_1 == 1 && img_2 == 1) {
+ _map3_hi[tile] &= ~(3 << 5);
+ dirty = tile;
+ }
+ }
+
+ img_2 = 0;
+ if (IS_TILETYPE(TILE_ADDXY(tile, 0, 1), MP_CLEAR)) {
+ img_2 = img_by_map5[(_map5[TILE_ADDXY(tile, 0, 1)] & 0x1C) >> 2];
+ } else if (IS_TILETYPE(TILE_ADDXY(tile, 0, 1), MP_TREES) && (_map2[TILE_ADDXY(tile, 0, 1)] & 0x30) == 0x20) {
+ img_2 = 1;
+ }
+
+ if (!(_map3_hi[tile] & 0x1C)) {
+ if ( (img_1&2) != (img_2&2) ) {
+ _map3_hi[tile] |= 3 << 2;
+ dirty = tile;
+ }
+ } else {
+ if (img_1 == 1 && img_2 == 1) {
+ _map3_hi[tile] &= ~(3 << 2);
+ dirty = tile;
+ }
+ }
+
+ if (dirty != -1)
+ MarkTileDirtyByTile(dirty);
+}
+
+
+/* convert into snowy tiles */
+static void TileLoopClearAlps(uint tile)
+{
+ int k;
+ byte m5,tmp;
+
+ /* distance from snow line, in steps of 8 */
+ k = GetTileZ(tile) - _opt.snow_line;
+
+ m5 = _map5[tile] & 0x1C;
+ tmp = _map5[tile] & 3;
+
+ if (k < -8) {
+ /* snow_m2_down */
+ if (m5 != 0x10)
+ return;
+ if (tmp == 0)
+ m5 = 3;
+ } else if (k == -8) {
+ /* snow_m1 */
+ if (m5 != 0x10) {
+ m5 = 0x10;
+ } else if (tmp != 0) {
+ m5 = (tmp - 1) + 0x10;
+ } else
+ return;
+ } else if (k < 8) {
+ /* snow_0 */
+ if (m5 != 0x10) {
+ m5 = 0x10;
+ } else if (tmp != 1) {
+ m5 = 1;
+ if (tmp != 0)
+ m5 = tmp - 1;
+ m5 += 0x10;
+ } else
+ return;
+ } else if (k == 8) {
+ /* snow_p1 */
+ if (m5 != 0x10) {
+ m5 = 0x10;
+ } else if (tmp != 2) {
+ m5 = 2;
+ if (tmp <= 2)
+ m5 = tmp + 1;
+ m5 += 0x10;
+ } else
+ return;
+ } else {
+ /* snow_p2_up */
+ if (m5 != 0x10) {
+ m5 = 0x10;
+ } else if (tmp != 3) {
+ m5 = tmp + 1 + 0x10;
+ } else
+ return;
+ }
+
+ _map5[tile] = m5;
+ MarkTileDirtyByTile(tile);
+}
+
+static void TileLoopClearDesert(uint tile)
+{
+ if ( (_map5[tile] & 0x1C) == 0x14)
+ return;
+
+ if (GetMapExtraBits(tile) == 1) {
+ _map5[tile] = 0x17;
+ } else {
+ if (GetMapExtraBits(tile+TILE_XY(1,0)) != 1 &&
+ GetMapExtraBits(tile+TILE_XY(-1,0)) != 1 &&
+ GetMapExtraBits(tile+TILE_XY(0,1)) != 1 &&
+ GetMapExtraBits(tile+TILE_XY(0,-1)) != 1)
+ return;
+ _map5[tile] = 0x15;
+ }
+
+ MarkTileDirtyByTile(tile);
+}
+
+static void TileLoop_Clear(uint tile)
+{
+ byte m5,m3;
+
+ TileLoopClearHelper(tile);
+
+ if (_opt.landscape == LT_DESERT) {
+ TileLoopClearDesert(tile);
+ } else if (_opt.landscape == LT_HILLY) {
+ TileLoopClearAlps(tile);
+ }
+
+ m5 = _map5[tile];
+ if ( (m5 & 0x1C) == 0x10 || (m5 & 0x1C) == 0x14)
+ return;
+
+ if ( (m5 & 0x1C) != 0xC) {
+ if ( (m5 & 3) == 3)
+ return;
+
+ if (_game_mode != GM_EDITOR) {
+ m5 += 0x20;
+ if (m5 >= 0x20) {
+ // Didn't overflow
+ _map5[tile] = m5;
+ return;
+ }
+ /* did overflow, so continue */
+ } else {
+ m5 = ((byte)Random() > 21) ? (2) : (6);
+ }
+ m5++;
+ } else if (_game_mode != GM_EDITOR) {
+ /* handle farm field */
+ m5 += 0x20;
+ if (m5 >= 0x20) {
+ // Didn't overflow
+ _map5[tile] = m5;
+ return;
+ }
+ /* overflowed */
+ m3 = _map3_lo[tile] + 1;
+ assert( (m3 & 0xF) != 0);
+ if ( (m3 & 0xF) >= 9) /* NOTE: will not work properly if m3&0xF == 0xF */
+ m3 &= ~0xF;
+ _map3_lo[tile] = m3;
+ }
+
+ _map5[tile] = m5;
+ MarkTileDirtyByTile(tile);
+}
+
+void GenerateClearTile()
+{
+ int i,j;
+ uint tile,tile_new;
+ uint32 r;
+
+ /* add hills */
+ i = (Random() & 0x3FF) | 0x400;
+ do {
+ tile = TILE_MASK(Random());
+ if (IS_TILETYPE(tile, MP_CLEAR))
+ _map5[tile] = (byte)((_map5[tile] & ~(3<<2)) | (1<<2));
+ } while (--i);
+
+ /* add grey squares */
+ i = (Random() & 0x7F) | 0x80;
+ do {
+ r = Random();
+ tile = TILE_MASK(r);
+ if (IS_TILETYPE(tile, MP_CLEAR)) {
+ j = ((r >> 16) & 0xF) + 5;
+ for(;;) {
+ _map5[tile] = (byte)((_map5[tile] & ~(3<<2)) | (2<<2));
+ do {
+ if (--j == 0) goto get_out;
+ tile_new = tile + _tileoffs_by_dir[Random() & 3];
+ } while (!IS_TILETYPE(tile_new, MP_CLEAR));
+ tile = tile_new;
+ }
+get_out:;
+ }
+ } while (--i);
+}
+
+static void ClickTile_Clear(uint tile)
+{
+ /* not used */
+}
+
+uint32 GetTileTrackStatus_Clear(uint tile, int mode)
+{
+ return 0;
+}
+
+static const StringID _clear_land_str[4+8-1] = {
+ STR_080B_ROUGH_LAND,
+ STR_080A_ROCKS,
+ STR_080E_FIELDS,
+ STR_080F_SNOW_COVERED_LAND,
+ STR_0810_DESERT,
+ 0,
+ 0,
+ STR_080C_BARE_LAND,
+ STR_080D_GRASS,
+ STR_080D_GRASS,
+ STR_080D_GRASS,
+};
+
+static void GetTileDesc_Clear(uint tile, TileDesc *td)
+{
+ int i = (_map5[tile]>>2) & 7;
+ if (i == 0)
+ i = (_map5[tile] & 3) + 8;
+ td->str = _clear_land_str[i - 1];
+ td->owner = _map_owner[tile];
+}
+
+static void ChangeTileOwner_Clear(uint tile, byte old_player, byte new_player)
+{
+ return;
+}
+
+void InitializeClearLand() {
+ _opt.snow_line = _patches.snow_line_height * 8;
+}
+
+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 */
+ NULL, /* vehicle_leave_tile_proc */
+};
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-19 02:53:11 +0000