summaryrefslogtreecommitdiff
path: root/src/terraform_cmd.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/terraform_cmd.cpp')
-rw-r--r--src/terraform_cmd.cpp76
1 files changed, 32 insertions, 44 deletions
diff --git a/src/terraform_cmd.cpp b/src/terraform_cmd.cpp
index 5e7e486b5..a71dfe21a 100644
--- a/src/terraform_cmd.cpp
+++ b/src/terraform_cmd.cpp
@@ -35,8 +35,8 @@ struct TerraformerHeightMod {
};
struct TerraformerState {
- int modheight_count; ///< amount of entries in "modheight".
- int tile_table_count; ///< amount of entries in "tile_table".
+ 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.
@@ -49,7 +49,7 @@ struct TerraformerState {
TerraformerHeightMod modheight[TERRAFORMER_MODHEIGHT_SIZE]; ///< Height modifications.
};
-TileIndex _terraform_err_tile;
+TileIndex _terraform_err_tile; ///< first tile we couldn't terraform
/**
* Gets the TileHeight (height of north corner) of a tile as of current terraforming progress.
@@ -58,12 +58,11 @@ TileIndex _terraform_err_tile;
* @param tile Tile.
* @return TileHeight.
*/
-static int TerraformGetHeightOfTile(TerraformerState *ts, TileIndex tile)
+static int TerraformGetHeightOfTile(const TerraformerState *ts, TileIndex tile)
{
- TerraformerHeightMod *mod = ts->modheight;
- int count;
+ const TerraformerHeightMod *mod = ts->modheight;
- for (count = ts->modheight_count; count != 0; count--, mod++) {
+ for (int count = ts->modheight_count; count != 0; count--, mod++) {
if (mod->tile == tile) return mod->height;
}
@@ -85,6 +84,7 @@ static void TerraformSetHeightOfTile(TerraformerState *ts, TileIndex tile, int h
* 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--;
@@ -110,12 +110,9 @@ static void TerraformSetHeightOfTile(TerraformerState *ts, TileIndex tile, int h
*/
static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile)
{
- int count;
- TileIndex *t;
-
- count = ts->tile_table_count;
+ int count = ts->tile_table_count;
- for (t = ts->tile_table; count != 0; count--, t++) {
+ for (TileIndex *t = ts->tile_table; count != 0; count--, t++) {
if (*t == tile) return;
}
@@ -149,8 +146,6 @@ static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
*/
static CommandCost TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height)
{
- CommandCost total_cost(EXPENSES_CONSTRUCTION);
-
assert(tile < MapSize());
/* Check range of destination height */
@@ -184,6 +179,8 @@ static CommandCost TerraformTileHeight(TerraformerState *ts, TileIndex tile, int
/* Store the height modification */
TerraformSetHeightOfTile(ts, tile, height);
+ CommandCost total_cost(EXPENSES_CONSTRUCTION);
+
/* Increment cost */
total_cost.AddCost(_price.terraform);
@@ -228,17 +225,17 @@ static CommandCost TerraformTileHeight(TerraformerState *ts, TileIndex tile, int
*/
CommandCost CmdTerraformLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
- TerraformerState ts;
+ /* Make an extra check for map-bounds cause we add tiles to the originating tile */
+ if (tile + TileDiffXY(1, 1) >= MapSize()) return CMD_ERROR;
+
+ _terraform_err_tile = INVALID_TILE;
+
CommandCost total_cost(EXPENSES_CONSTRUCTION);
int direction = (p2 != 0 ? 1 : -1);
-
- _terraform_err_tile = 0;
+ TerraformerState ts;
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);
@@ -270,10 +267,9 @@ CommandCost CmdTerraformLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
/* 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++) {
+ for (int count = ts.tile_table_count; count != 0; count--, ti++) {
TileIndex tile = *ti;
/* Find new heights of tile corners */
@@ -350,49 +346,41 @@ CommandCost CmdTerraformLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
*/
CommandCost CmdLevelLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
- int size_x, size_y;
- int ex;
- int ey;
- int sx, sy;
- uint h, oldh, curh;
- CommandCost money;
- CommandCost ret;
- CommandCost cost(EXPENSES_CONSTRUCTION);
-
if (p1 >= MapSize()) return CMD_ERROR;
/* remember level height */
- oldh = TileHeight(p1);
+ uint oldh = TileHeight(p1);
/* compute new height */
- h = oldh + p2;
+ uint h = oldh + p2;
/* Check range of destination height */
if (h > MAX_TILE_HEIGHT) return_cmd_error((oldh == 0) ? STR_1003_ALREADY_AT_SEA_LEVEL : STR_1004_TOO_HIGH);
/* make sure sx,sy are smaller than ex,ey */
- ex = TileX(tile);
- ey = TileY(tile);
- sx = TileX(p1);
- sy = TileY(p1);
+ int ex = TileX(tile);
+ int ey = TileY(tile);
+ int sx = TileX(p1);
+ int 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;
+ int size_x = ex - sx + 1;
+ int size_y = ey - sy + 1;
- money.AddCost(GetAvailableMoneyForCommand());
+ Money money = GetAvailableMoneyForCommand();
+ CommandCost cost(EXPENSES_CONSTRUCTION);
BEGIN_TILE_LOOP(tile2, size_x, size_y, tile) {
- curh = TileHeight(tile2);
+ uint curh = TileHeight(tile2);
while (curh != h) {
- ret = DoCommand(tile2, SLOPE_N, (curh > h) ? 0 : 1, flags & ~DC_EXEC, CMD_TERRAFORM_LAND);
+ CommandCost 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) {
+ money -= ret.GetCost();
+ if (money < 0) {
_additional_cash_required = ret.GetCost();
return cost;
}
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-18 04:35:55 +0000