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(svn r21290) -Codechange: Add HasTileWaterGround() to deduplicate some tests.

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This commit is contained in:
frosch 2010-11-21 18:38:45 +00:00
parent 0fff26db97
commit 612516ff76
4 changed files with 14 additions and 3 deletions
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2
src/object_cmd.cpp
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@ -187,7 +187,7 @@ CommandCost CmdBuildObject(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
bool allow_water = (spec->flags & (OBJECT_FLAG_BUILT_ON_WATER | OBJECT_FLAG_NOT_ON_LAND)) != 0;
bool allow_ground = (spec->flags & OBJECT_FLAG_NOT_ON_LAND) == 0;
TILE_AREA_LOOP(t, ta) {
if (HasTileWaterClass(t) && IsTileOnWater(t) && !IsCoastTile(t)) {
if (HasTileWaterGround(t)) {
if (!allow_water) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
if (!IsWaterTile(t)) {
/* Normal water tiles don't have to be cleared. For all other tile types clear

2
src/water_cmd.cpp
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@ -100,7 +100,7 @@ CommandCost CmdBuildShipDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, ui
TileIndex tile2 = tile + (axis == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
if (!HasTileWaterClass(tile) || !IsTileOnWater(tile) || !HasTileWaterClass(tile2) || !IsTileOnWater(tile2)) {
if (!HasTileWaterGround(tile) || !HasTileWaterGround(tile2)) {
return_cmd_error(STR_ERROR_MUST_BE_BUILT_ON_WATER);
}

11
src/water_map.h
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@ -284,6 +284,17 @@ static inline byte GetWaterTileRandomBits(TileIndex t)
return _m[t].m4;
}
/**
* Checks whether the tile has water at the ground.
* That is, it is either some plain water tile, or a object/industry/station/... with water under it.
* @return true iff the tile has water at the ground.
* @note Coast tiles are not considered waterish, even if there is water on a halftile.
*/
static inline bool HasTileWaterGround(TileIndex t)
{
return HasTileWaterClass(t) && IsTileOnWater(t) && !IsCoastTile(t);
}
/**
* Helper function to make a coast tile.

2
src/waypoint_cmd.cpp
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@ -282,7 +282,7 @@ CommandCost CmdBuildRailWaypoint(TileIndex start_tile, DoCommandFlag flags, uint
*/
CommandCost CmdBuildBuoy(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
if (!HasTileWaterClass(tile) || !IsTileOnWater(tile) || tile == 0) return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
if (tile == 0 || !HasTileWaterGround(tile)) return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
if (GetTileSlope(tile, NULL) != SLOPE_FLAT) return_cmd_error(STR_ERROR_SITE_UNSUITABLE);