OpenTTD Source: src/terraform_cmd.cpp Source File

OpenTTD Source 13.2.1

terraform_cmd.cpp
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1 /*
2 * This file is part of OpenTTD.
3 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
4 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
5 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
6 */
7
10 #include "stdafx.h"
11 #include "command_func.h"
12 #include "tunnel_map.h"
13 #include "bridge_map.h"
14 #include "viewport_func.h"
15 #include "genworld.h"
16 #include "object_base.h"
17 #include "company_base.h"
18 #include "company_func.h"
19 #include "core/backup_type.hpp"
20 #include "terraform_cmd.h"
21 #include "landscape_cmd.h"
22
23 #include "table/strings.h"
24
25 #include <map>
26 #include <set>
27
28 #include "safeguards.h"
29
31 typedef std::set<TileIndex> TileIndexSet;
33 typedef std::map<TileIndex, int> TileIndexToHeightMap;
34
36 struct TerraformerState {
37 TileIndexSet dirty_tiles;
38 TileIndexToHeightMap tile_to_new_height;
39 };
40
48 static int TerraformGetHeightOfTile(const TerraformerState *ts, TileIndex tile)
49 {
50 TileIndexToHeightMap::const_iterator it = ts->tile_to_new_height.find(tile);
51 return it != ts->tile_to_new_height.end() ? it->second : TileHeight(tile);
52 }
53
61 static void TerraformSetHeightOfTile(TerraformerState *ts, TileIndex tile, int height)
62 {
63 ts->tile_to_new_height[tile] = height;
64 }
65
73 static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile)
74 {
75 ts->dirty_tiles.insert(tile);
76 }
77
85 static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
86 {
87 /* Make sure all tiles passed to TerraformAddDirtyTile are within [0, MapSize()] */
88 if (TileY(tile) >= 1) TerraformAddDirtyTile(ts, tile + TileDiffXY( 0, -1));
89 if (TileY(tile) >= 1 && TileX(tile) >= 1) TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, -1));
90 if (TileX(tile) >= 1) TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, 0));
91 TerraformAddDirtyTile(ts, tile);
92 }
93
102 static std::tuple<CommandCost, TileIndex> TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height)
103 {
104 assert(tile < MapSize());
105
106 /* Check range of destination height */
107 if (height < 0) return { CommandCost(STR_ERROR_ALREADY_AT_SEA_LEVEL), INVALID_TILE };
108 if (height > _settings_game.construction.map_height_limit) return { CommandCost(STR_ERROR_TOO_HIGH), INVALID_TILE };
109
110 /*
111 * Check if the terraforming has any effect.
112 * This can only be true, if multiple corners of the start-tile are terraformed (i.e. the terraforming is done by towns/industries etc.).
113 * In this case the terraforming should fail. (Don't know why.)
114 */
115 if (height == TerraformGetHeightOfTile(ts, tile)) return { CMD_ERROR, INVALID_TILE };
116
117 /* Check "too close to edge of map". Only possible when freeform-edges is off. */
118 uint x = TileX(tile);
119 uint y = TileY(tile);
120 if (!_settings_game.construction.freeform_edges && ((x <= 1) || (y <= 1) || (x >= MapMaxX() - 1) || (y >= MapMaxY() - 1))) {
121 /*
122 * Determine a sensible error tile
123 */
124 if (x == 1) x = 0;
125 if (y == 1) y = 0;
126 return { CommandCost(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP), TileXY(x, y) };
127 }
128
129 /* Mark incident tiles that are involved in the terraforming. */
130 TerraformAddDirtyTileAround(ts, tile);
131
132 /* Store the height modification */
133 TerraformSetHeightOfTile(ts, tile, height);
134
135 CommandCost total_cost(EXPENSES_CONSTRUCTION);
136
137 /* Increment cost */
138 total_cost.AddCost(_price[PR_TERRAFORM]);
139
140 /* Recurse to neighboured corners if height difference is larger than 1 */
141 {
142 const TileIndexDiffC *ttm;
143
144 TileIndex orig_tile = tile;
145 static const TileIndexDiffC _terraform_tilepos[] = {
146 { 1, 0}, // move to tile in SE
147 {-2, 0}, // undo last move, and move to tile in NW
148 { 1, 1}, // undo last move, and move to tile in SW
149 { 0, -2} // undo last move, and move to tile in NE
150 };
151
152 for (ttm = _terraform_tilepos; ttm != endof(_terraform_tilepos); ttm++) {
153 tile += ToTileIndexDiff(*ttm);
154
155 if (tile >= MapSize()) continue;
156 /* Make sure we don't wrap around the map */
157 if (Delta(TileX(orig_tile), TileX(tile)) == MapSizeX() - 1) continue;
158 if (Delta(TileY(orig_tile), TileY(tile)) == MapSizeY() - 1) continue;
159
160 /* Get TileHeight of neighboured tile as of current terraform progress */
161 int r = TerraformGetHeightOfTile(ts, tile);
162 int height_diff = height - r;
163
164 /* Is the height difference to the neighboured corner greater than 1? */
165 if (abs(height_diff) > 1) {
166 /* Terraform the neighboured corner. The resulting height difference should be 1. */
167 height_diff += (height_diff < 0 ? 1 : -1);
168 auto [cost, err_tile] = TerraformTileHeight(ts, tile, r + height_diff);
169 if (cost.Failed()) return { cost, err_tile };
170 total_cost.AddCost(cost);
171 }
172 }
173 }
174
175 return { total_cost, INVALID_TILE };
176 }
177
186 std::tuple<CommandCost, Money, TileIndex> CmdTerraformLand(DoCommandFlag flags, TileIndex tile, Slope slope, bool dir_up)
187 {
188 CommandCost total_cost(EXPENSES_CONSTRUCTION);
189 int direction = (dir_up ? 1 : -1);
190 TerraformerState ts;
191
192 /* Compute the costs and the terraforming result in a model of the landscape */
193 if ((slope & SLOPE_W) != 0 && tile + TileDiffXY(1, 0) < MapSize()) {
194 TileIndex t = tile + TileDiffXY(1, 0);
195 auto [cost, err_tile] = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
196 if (cost.Failed()) return { cost, 0, err_tile };
197 total_cost.AddCost(cost);
198 }
199
200 if ((slope & SLOPE_S) != 0 && tile + TileDiffXY(1, 1) < MapSize()) {
201 TileIndex t = tile + TileDiffXY(1, 1);
202 auto [cost, err_tile] = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
203 if (cost.Failed()) return { cost, 0, err_tile };
204 total_cost.AddCost(cost);
205 }
206
207 if ((slope & SLOPE_E) != 0 && tile + TileDiffXY(0, 1) < MapSize()) {
208 TileIndex t = tile + TileDiffXY(0, 1);
209 auto [cost, err_tile] = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
210 if (cost.Failed()) return { cost, 0, err_tile };
211 total_cost.AddCost(cost);
212 }
213
214 if ((slope & SLOPE_N) != 0) {
215 TileIndex t = tile + TileDiffXY(0, 0);
216 auto [cost, err_tile] = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
217 if (cost.Failed()) return { cost, 0, err_tile };
218 total_cost.AddCost(cost);
219 }
220
221 /* Check if the terraforming is valid wrt. tunnels, bridges and objects on the surface
222 * Pass == 0: Collect tileareas which are caused to be auto-cleared.
223 * Pass == 1: Collect the actual cost. */
224 for (int pass = 0; pass < 2; pass++) {
225 for (TileIndexSet::const_iterator it = ts.dirty_tiles.begin(); it != ts.dirty_tiles.end(); it++) {
226 TileIndex t = *it;
227
228 assert(t < MapSize());
229 /* MP_VOID tiles can be terraformed but as tunnels and bridges
230 * cannot go under / over these tiles they don't need checking. */
231 if (IsTileType(t, MP_VOID)) continue;
232
233 /* Find new heights of tile corners */
234 int z_N = TerraformGetHeightOfTile(&ts, t + TileDiffXY(0, 0));
235 int z_W = TerraformGetHeightOfTile(&ts, t + TileDiffXY(1, 0));
236 int z_S = TerraformGetHeightOfTile(&ts, t + TileDiffXY(1, 1));
237 int z_E = TerraformGetHeightOfTile(&ts, t + TileDiffXY(0, 1));
238
239 /* Find min and max height of tile */
240 int z_min = std::min({z_N, z_W, z_S, z_E});
241 int z_max = std::max({z_N, z_W, z_S, z_E});
242
243 /* Compute tile slope */
244 Slope tileh = (z_max > z_min + 1 ? SLOPE_STEEP : SLOPE_FLAT);
245 if (z_W > z_min) tileh |= SLOPE_W;
246 if (z_S > z_min) tileh |= SLOPE_S;
247 if (z_E > z_min) tileh |= SLOPE_E;
248 if (z_N > z_min) tileh |= SLOPE_N;
249
250 if (pass == 0) {
251 /* Check if bridge would take damage */
252 if (IsBridgeAbove(t)) {
253 int bridge_height = GetBridgeHeight(GetSouthernBridgeEnd(t));
254
255 /* Check if bridge would take damage. */
256 if (direction == 1 && bridge_height <= z_max) {
257 return { CommandCost(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST), 0, t }; // highlight the tile under the bridge
258 }
259
260 /* Is the bridge above not too high afterwards? */
261 if (direction == -1 && bridge_height > (z_min + _settings_game.construction.max_bridge_height)) {
262 return { CommandCost(STR_ERROR_BRIDGE_TOO_HIGH_AFTER_LOWER_LAND), 0, t };
263 }
264 }
265 /* Check if tunnel would take damage */
266 if (direction == -1 && IsTunnelInWay(t, z_min)) {
267 return { CommandCost(STR_ERROR_EXCAVATION_WOULD_DAMAGE), 0, t }; // highlight the tile above the tunnel
268 }
269 }
270
271 /* Is the tile already cleared? */
272 const ClearedObjectArea *coa = FindClearedObject(t);
273 bool indirectly_cleared = coa != nullptr && coa->first_tile != t;
274
275 /* Check tiletype-specific things, and add extra-cost */
276 Backup<bool> old_generating_world(_generating_world, FILE_LINE);
277 if (_game_mode == GM_EDITOR) old_generating_world.Change(true); // used to create green terraformed land
278 DoCommandFlag tile_flags = flags | DC_AUTO | DC_FORCE_CLEAR_TILE;
279 if (pass == 0) {
280 tile_flags &= ~DC_EXEC;
281 tile_flags |= DC_NO_MODIFY_TOWN_RATING;
282 }
283 CommandCost cost;
284 if (indirectly_cleared) {
285 cost = Command<CMD_LANDSCAPE_CLEAR>::Do(tile_flags, t);
286 } else {
287 cost = _tile_type_procs[GetTileType(t)]->terraform_tile_proc(t, tile_flags, z_min, tileh);
288 }
289 old_generating_world.Restore();
290 if (cost.Failed()) {
291 return { cost, 0, t };
292 }
293 if (pass == 1) total_cost.AddCost(cost);
294 }
295 }
296
297 Company *c = Company::GetIfValid(_current_company);
298 if (c != nullptr && GB(c->terraform_limit, 16, 16) < ts.tile_to_new_height.size()) {
299 return { CommandCost(STR_ERROR_TERRAFORM_LIMIT_REACHED), 0, INVALID_TILE };
300 }
301
302 if (flags & DC_EXEC) {
303 /* Mark affected areas dirty. */
304 for (TileIndexSet::const_iterator it = ts.dirty_tiles.begin(); it != ts.dirty_tiles.end(); it++) {
305 MarkTileDirtyByTile(*it);
306 TileIndexToHeightMap::const_iterator new_height = ts.tile_to_new_height.find(*it);
307 if (new_height == ts.tile_to_new_height.end()) continue;
308 MarkTileDirtyByTile(*it, 0, new_height->second);
309 }
310
311 /* change the height */
312 for (TileIndexToHeightMap::const_iterator it = ts.tile_to_new_height.begin();
313 it != ts.tile_to_new_height.end(); it++) {
314 TileIndex t = it->first;
315 int height = it->second;
316
317 SetTileHeight(t, (uint)height);
318 }
319
320 if (c != nullptr) c->terraform_limit -= (uint32)ts.tile_to_new_height.size() << 16;
321 }
322 return { total_cost, 0, total_cost.Succeeded() ? tile : INVALID_TILE };
323 }
324
325
335 std::tuple<CommandCost, Money, TileIndex> CmdLevelLand(DoCommandFlag flags, TileIndex tile, TileIndex start_tile, bool diagonal, LevelMode lm)
336 {
337 if (start_tile >= MapSize()) return { CMD_ERROR, 0, INVALID_TILE };
338
339 /* remember level height */
340 uint oldh = TileHeight(start_tile);
341
342 /* compute new height */
343 uint h = oldh;
344 switch (lm) {
345 case LM_LEVEL: break;
346 case LM_RAISE: h++; break;
347 case LM_LOWER: h--; break;
348 default: return { CMD_ERROR, 0, INVALID_TILE };
349 }
350
351 /* Check range of destination height */
352 if (h > _settings_game.construction.map_height_limit) return { CommandCost(oldh == 0 ? STR_ERROR_ALREADY_AT_SEA_LEVEL : STR_ERROR_TOO_HIGH), 0, INVALID_TILE };
353
354 Money money = GetAvailableMoneyForCommand();
355 CommandCost cost(EXPENSES_CONSTRUCTION);
356 CommandCost last_error(lm == LM_LEVEL ? STR_ERROR_ALREADY_LEVELLED : INVALID_STRING_ID);
357 bool had_success = false;
358
359 const Company *c = Company::GetIfValid(_current_company);
360 int limit = (c == nullptr ? INT32_MAX : GB(c->terraform_limit, 16, 16));
361 if (limit == 0) return { CommandCost(STR_ERROR_TERRAFORM_LIMIT_REACHED), 0, INVALID_TILE };
362
363 TileIndex error_tile = INVALID_TILE;
364 TileIterator *iter = diagonal ? (TileIterator *)new DiagonalTileIterator(tile, start_tile) : new OrthogonalTileIterator(tile, start_tile);
365 for (; *iter != INVALID_TILE; ++(*iter)) {
366 TileIndex t = *iter;
367 uint curh = TileHeight(t);
368 while (curh != h) {
369 CommandCost ret;
370 std::tie(ret, std::ignore, error_tile) = Command<CMD_TERRAFORM_LAND>::Do(flags & ~DC_EXEC, t, SLOPE_N, curh <= h);
371 if (ret.Failed()) {
372 last_error = ret;
373
374 /* Did we reach the limit? */
375 if (ret.GetErrorMessage() == STR_ERROR_TERRAFORM_LIMIT_REACHED) limit = 0;
376 break;
377 }
378
379 if (flags & DC_EXEC) {
380 money -= ret.GetCost();
381 if (money < 0) {
382 delete iter;
383 return { cost, ret.GetCost(), error_tile };
384 }
385 Command<CMD_TERRAFORM_LAND>::Do(flags, t, SLOPE_N, curh <= h);
386 } else {
387 /* When we're at the terraform limit we better bail (unneeded) testing as well.
388 * This will probably cause the terraforming cost to be underestimated, but only
389 * when it's near the terraforming limit. Even then, the estimation is
390 * completely off due to it basically counting terraforming double, so it being
391 * cut off earlier might even give a better estimate in some cases. */
392 if (--limit <= 0) {
393 had_success = true;
394 break;
395 }
396 }
397
398 cost.AddCost(ret);
399 curh += (curh > h) ? -1 : 1;
400 had_success = true;
401 }
402
403 if (limit <= 0) break;
404 }
405
406 delete iter;
407 CommandCost cc_ret = had_success ? cost : last_error;
408 return { cc_ret, 0, cc_ret.Succeeded() ? tile : error_tile };
409 }
Backup::Change
void Change(const U &new_value)
Change the value of the variable.
Definition: backup_type.hpp:84
TerraformerState::dirty_tiles
TileIndexSet dirty_tiles
The tiles that need to be redrawn.
Definition: terraform_cmd.cpp:37
tunnel_map.h
DiagonalTileIterator
Iterator to iterate over a diagonal area of the map.
Definition: tilearea_type.h:233
GB
static uint GB(const T x, const uint8 s, const uint8 n)
Fetch n bits from x, started at bit s.
Definition: bitmath_func.hpp:32
command_func.h
_tile_type_procs
const TileTypeProcs *const _tile_type_procs[16]
Tile callback functions for each type of tile.
Definition: landscape.cpp:64
TerraformTileHeight
static std::tuple< CommandCost, TileIndex > TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height)
Terraform the north corner of a tile to a specific height.
Definition: terraform_cmd.cpp:102
Pool::PoolItem<&_company_pool >::GetIfValid
static Titem * GetIfValid(size_t index)
Returns Titem with given index.
Definition: pool_type.hpp:348
CMD_ERROR
static const CommandCost CMD_ERROR
Define a default return value for a failed command.
Definition: command_func.h:28
Backup
Class to backup a specific variable and restore it later.
Definition: backup_type.hpp:21
LM_LOWER
@ LM_LOWER
Lower the land.
Definition: map_type.h:83
terraform_cmd.h
company_base.h
ConstructionSettings::map_height_limit
uint8 map_height_limit
the maximum allowed heightlevel
Definition: settings_type.h:342
GetBridgeHeight
int GetBridgeHeight(TileIndex t)
Get the height ('z') of a bridge.
Definition: bridge_map.cpp:70
INVALID_TILE
static constexpr TileIndex INVALID_TILE
The very nice invalid tile marker.
Definition: tile_type.h:108
TileIndex
The index/ID of a Tile.
Definition: tile_type.h:85
TerraformAddDirtyTile
static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile)
Adds a tile to the "tile_table" in a TerraformerState.
Definition: terraform_cmd.cpp:73
TileY
static uint TileY(TileIndex tile)
Get the Y component of a tile.
Definition: map_func.h:215
SLOPE_S
@ SLOPE_S
the south corner of the tile is raised
Definition: slope_type.h:51
TerraformGetHeightOfTile
static int TerraformGetHeightOfTile(const TerraformerState *ts, TileIndex tile)
Gets the TileHeight (height of north corner) of a tile as of current terraforming progress.
Definition: terraform_cmd.cpp:48
DC_EXEC
@ DC_EXEC
execute the given command
Definition: command_type.h:357
CmdLevelLand
std::tuple< CommandCost, Money, TileIndex > CmdLevelLand(DoCommandFlag flags, TileIndex tile, TileIndex start_tile, bool diagonal, LevelMode lm)
Levels a selected (rectangle) area of land.
Definition: terraform_cmd.cpp:335
CommandCost::GetErrorMessage
StringID GetErrorMessage() const
Returns the error message of a command.
Definition: command_type.h:141
SLOPE_E
@ SLOPE_E
the east corner of the tile is raised
Definition: slope_type.h:52
DoCommandFlag
DoCommandFlag
List of flags for a command.
Definition: command_type.h:355
genworld.h
CommandCost::Succeeded
bool Succeeded() const
Did this command succeed?
Definition: command_type.h:151
object_base.h
TileX
static uint TileX(TileIndex tile)
Get the X component of a tile.
Definition: map_func.h:205
TerraformerState
State of the terraforming.
Definition: terraform_cmd.cpp:36
MapSizeX
static uint MapSizeX()
Get the size of the map along the X.
Definition: map_func.h:72
ToTileIndexDiff
static TileIndexDiff ToTileIndexDiff(TileIndexDiffC tidc)
Return the offset between two tiles from a TileIndexDiffC struct.
Definition: map_func.h:230
Slope
Slope
Enumeration for the slope-type.
Definition: slope_type.h:48
OrthogonalTileIterator
Iterator to iterate over a tile area (rectangle) of the map.
Definition: tilearea_type.h:183
landscape_cmd.h
MapSize
static uint MapSize()
Get the size of the map.
Definition: map_func.h:92
EXPENSES_CONSTRUCTION
@ EXPENSES_CONSTRUCTION
Construction costs.
Definition: economy_type.h:158
CommandCost
Common return value for all commands.
Definition: command_type.h:24
CompanyProperties::terraform_limit
uint32 terraform_limit
Amount of tileheights we can (still) terraform (times 65536).
Definition: company_base.h:87
TileHeight
static uint TileHeight(TileIndex tile)
Returns the height of a tile.
Definition: tile_map.h:29
TileIterator
Base class for tile iterators.
Definition: tilearea_type.h:105
ClearedObjectArea::first_tile
TileIndex first_tile
The first tile being cleared, which then causes the whole object to be cleared.
Definition: object_base.h:85
CommandCost::Failed
bool Failed() const
Did this command fail?
Definition: command_type.h:160
IsTunnelInWay
bool IsTunnelInWay(TileIndex tile, int z)
Is there a tunnel in the way in any direction?
Definition: tunnel_map.cpp:68
ConstructionSettings::max_bridge_height
byte max_bridge_height
maximum height of bridges
Definition: settings_type.h:346
_settings_game
GameSettings _settings_game
Game settings of a running game or the scenario editor.
Definition: settings.cpp:54
TerraformAddDirtyTileAround
static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
Adds all tiles that incident with the north corner of a specific tile to the "tile_table" in a Terraf...
Definition: terraform_cmd.cpp:85
safeguards.h
ConstructionSettings::freeform_edges
bool freeform_edges
allow terraforming the tiles at the map edges
Definition: settings_type.h:354
CommandCost::GetCost
Money GetCost() const
The costs as made up to this moment.
Definition: command_type.h:83
GetAvailableMoneyForCommand
Money GetAvailableMoneyForCommand()
Definition: command.cpp:173
GetSouthernBridgeEnd
TileIndex GetSouthernBridgeEnd(TileIndex t)
Finds the southern end of a bridge starting at a middle tile.
Definition: bridge_map.cpp:49
MapSizeY
static uint MapSizeY()
Get the size of the map along the Y.
Definition: map_func.h:82
LM_LEVEL
@ LM_LEVEL
Level the land.
Definition: map_type.h:82
CommandCost::AddCost
void AddCost(const Money &cost)
Adds the given cost to the cost of the command.
Definition: command_type.h:63
stdafx.h
SetTileHeight
static void SetTileHeight(TileIndex tile, uint height)
Sets the height of a tile.
Definition: tile_map.h:57
viewport_func.h
bridge_map.h
IsTileType
static bool IsTileType(TileIndex tile, TileType type)
Checks if a tile is a given tiletype.
Definition: tile_map.h:150
TileTypeProcs::terraform_tile_proc
TerraformTileProc * terraform_tile_proc
Called when a terraforming operation is about to take place.
Definition: tile_cmd.h:159
TileIndexSet
std::set< TileIndex > TileIndexSet
Set of tiles.
Definition: terraform_cmd.cpp:31
SLOPE_W
@ SLOPE_W
the west corner of the tile is raised
Definition: slope_type.h:50
TileIndexDiffC
A pair-construct of a TileIndexDiff.
Definition: map_type.h:57
_generating_world
bool _generating_world
Whether we are generating the map or not.
Definition: genworld.cpp:61
_current_company
CompanyID _current_company
Company currently doing an action.
Definition: company_cmd.cpp:47
TerraformerState::tile_to_new_height
TileIndexToHeightMap tile_to_new_height
The tiles for which the height has changed.
Definition: terraform_cmd.cpp:38
DC_FORCE_CLEAR_TILE
@ DC_FORCE_CLEAR_TILE
do not only remove the object on the tile, but also clear any water left on it
Definition: command_type.h:368
MapMaxY
static uint MapMaxY()
Gets the maximum Y coordinate within the map, including MP_VOID.
Definition: map_func.h:111
FindClearedObject
ClearedObjectArea * FindClearedObject(TileIndex tile)
Find the entry in _cleared_object_areas which occupies a certain tile.
Definition: object_cmd.cpp:529
MP_VOID
@ MP_VOID
Invisible tiles at the SW and SE border.
Definition: tile_type.h:55
TerraformSetHeightOfTile
static void TerraformSetHeightOfTile(TerraformerState *ts, TileIndex tile, int height)
Stores the TileHeight (height of north corner) of a tile in a TerraformerState.
Definition: terraform_cmd.cpp:61
TileXY
static TileIndex TileXY(uint x, uint y)
Returns the TileIndex of a coordinate.
Definition: map_func.h:163
Backup::Restore
void Restore()
Restore the variable.
Definition: backup_type.hpp:112
SLOPE_N
@ SLOPE_N
the north corner of the tile is raised
Definition: slope_type.h:53
endof
#define endof(x)
Get the end element of an fixed size array.
Definition: stdafx.h:394
MarkTileDirtyByTile
void MarkTileDirtyByTile(TileIndex tile, int bridge_level_offset, int tile_height_override)
Mark a tile given by its index dirty for repaint.
Definition: viewport.cpp:1998
TileDiffXY
static TileIndexDiff TileDiffXY(int x, int y)
Calculates an offset for the given coordinate(-offset).
Definition: map_func.h:179
DC_AUTO
@ DC_AUTO
don't allow building on structures
Definition: command_type.h:358
DC_NO_MODIFY_TOWN_RATING
@ DC_NO_MODIFY_TOWN_RATING
do not change town rating
Definition: command_type.h:367
company_func.h
MapMaxX
static uint MapMaxX()
Gets the maximum X coordinate within the map, including MP_VOID.
Definition: map_func.h:102
abs
static T abs(const T a)
Returns the absolute value of (scalar) variable.
Definition: math_func.hpp:21
LevelMode
LevelMode
Argument for CmdLevelLand describing what to do.
Definition: map_type.h:81
CommandHelper
Definition: command_func.h:94
OverflowSafeInt< int64 >
GameSettings::construction
ConstructionSettings construction
construction of things in-game
Definition: settings_type.h:588
TileIndexToHeightMap
std::map< TileIndex, int > TileIndexToHeightMap
Mapping of tiles to their height.
Definition: terraform_cmd.cpp:33
GetTileType
static TileType GetTileType(TileIndex tile)
Get the tiletype of a given tile.
Definition: tile_map.h:96
LM_RAISE
@ LM_RAISE
Raise the land.
Definition: map_type.h:84
SLOPE_FLAT
@ SLOPE_FLAT
a flat tile
Definition: slope_type.h:49
ClearedObjectArea
Keeps track of removed objects during execution/testruns of commands.
Definition: object_base.h:84
Company
Definition: company_base.h:117
SLOPE_STEEP
@ SLOPE_STEEP
indicates the slope is steep
Definition: slope_type.h:54
INVALID_STRING_ID
static const StringID INVALID_STRING_ID
Constant representing an invalid string (16bit in case it is used in savegames)
Definition: strings_type.h:17
Delta
static T Delta(const T a, const T b)
Returns the (absolute) difference between two (scalar) variables.
Definition: math_func.hpp:196
IsBridgeAbove
static bool IsBridgeAbove(TileIndex t)
checks if a bridge is set above the ground of this tile
Definition: bridge_map.h:45
CmdTerraformLand
std::tuple< CommandCost, Money, TileIndex > CmdTerraformLand(DoCommandFlag flags, TileIndex tile, Slope slope, bool dir_up)
Terraform land.
Definition: terraform_cmd.cpp:186
backup_type.hpp