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Change: Desert tiles are now half-desert if a neighboured tile is non-desert or sea/coast. (patch by frosch123) #4754 (#7015)

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Andy 2019-01-09 17:48:08 +00:00 committed by Ingo von Borstel
parent e934f09f02
commit ad5a9daed5
1 changed files with 11 additions and 10 deletions
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21
src/clear_cmd.cpp
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@ -208,16 +208,19 @@ static void TileLoopClearAlps(TileIndex tile)
} }
/** /**
* Tests if at least one surrounding tile is desert * Tests if at least one surrounding tile is non-desert
* @param tile tile to check * @param tile tile to check
* @return does this tile have at least one desert tile around? * @return does this tile have at least one non-desert tile around?
*/ */
static inline bool NeighbourIsDesert(TileIndex tile) static inline bool NeighbourIsNormal(TileIndex tile)
{ {
return GetTropicZone(tile + TileDiffXY( 1, 0)) == TROPICZONE_DESERT || for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
GetTropicZone(tile + TileDiffXY( -1, 0)) == TROPICZONE_DESERT || TileIndex t = tile + TileOffsByDiagDir(dir);
GetTropicZone(tile + TileDiffXY( 0, 1)) == TROPICZONE_DESERT || if (!IsValidTile(t)) continue;
GetTropicZone(tile + TileDiffXY( 0, -1)) == TROPICZONE_DESERT; if (GetTropicZone(t) != TROPICZONE_DESERT) return true;
if (HasTileWaterClass(t) && GetWaterClass(t) == WATER_CLASS_SEA) return true;
}
return false;
} }
static void TileLoopClearDesert(TileIndex tile) static void TileLoopClearDesert(TileIndex tile)
@ -229,9 +232,7 @@ static void TileLoopClearDesert(TileIndex tile)
/* Expected desert level - 0 if it shouldn't be desert */ /* Expected desert level - 0 if it shouldn't be desert */
uint expected = 0; uint expected = 0;
if (GetTropicZone(tile) == TROPICZONE_DESERT) { if (GetTropicZone(tile) == TROPICZONE_DESERT) {
expected = 3; expected = NeighbourIsNormal(tile) ? 1 : 3;
} else if (NeighbourIsDesert(tile)) {
expected = 1;
} }
if (current == expected) return; if (current == expected) return;