Function TileLoopClearDesert

src/clear_cmd.cpp:234–256

}

static void TileLoopClearDesert(TileIndex tile)
{
	/* Current desert level - 0 if it is not desert */
	uint current = 0;
	if (IsClearGround(tile, CLEAR_DESERT)) current = GetClearDensity(tile);

	/* Expected desert level - 0 if it shouldn't be desert */
	uint expected = 0;
	if (GetTropicZone(tile) == TROPICZONE_DESERT) {
		expected = NeighbourIsNormal(tile) ? 1 : 3;
	}

	if (current == expected) return;

	if (expected == 0) {
		SetClearGroundDensity(tile, CLEAR_GRASS, 3);
	} else {
		/* Transition from clear to desert is not smooth (after clearing desert tile) */
		SetClearGroundDensity(tile, CLEAR_DESERT, expected);
	}

	MarkTileDirtyByTile(tile);
}

static void TileLoop_Clear(TileIndex tile)
{