Example #1
0
/**
 * The main new land generator using Perlin noise. Desert landscape is handled
 * different to all others to give a desert valley between two high mountains.
 * Clearly if a low height terrain (flat/very flat) is chosen, then the tropic
 * areas won't be high enough, and there will be very little tropic on the map.
 * Thus Tropic works best on Hilly or Mountainous.
 */
void GenerateTerrainPerlin()
{
	if (!AllocHeightMap()) return;
	GenerateWorldSetAbortCallback(FreeHeightMap);

	HeightMapGenerate();

	IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);

	HeightMapNormalize();

	IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);

	/* First make sure the tiles at the north border are void tiles if needed. */
	if (_settings_game.construction.freeform_edges) {
		for (uint x = 0; x < MapSizeX(); x++) MakeVoid(TileXY(x, 0));
		for (uint y = 0; y < MapSizeY(); y++) MakeVoid(TileXY(0, y));
	}

	int max_height = H2I(TGPGetMaxHeight());

	/* Transfer height map into OTTD map */
	for (int y = 0; y < _height_map.size_y; y++) {
		for (int x = 0; x < _height_map.size_x; x++) {
			TgenSetTileHeight(TileXY(x, y), Clamp(H2I(_height_map.height(x, y)), 0, max_height));
		}
	}

	IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);

	FreeHeightMap();
	GenerateWorldSetAbortCallback(NULL);
}
Example #2
0
/**
 * The main new land generator using Perlin noise. Desert landscape is handled
 * different to all others to give a desert valley between two high mountains.
 * Clearly if a low height terrain (flat/very flat) is chosen, then the tropic
 * areas wont be high enough, and there will be very little tropic on the map.
 * Thus Tropic works best on Hilly or Mountainous.
 */
void GenerateTerrainPerlin()
{
	uint x, y;

	if (!AllocHeightMap()) return;
	GenerateWorldSetAbortCallback(FreeHeightMap);

	HeightMapGenerate();

	IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);

	HeightMapNormalize();

	IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);

	/* First make sure the tiles at the north border are void tiles if needed. */
	if (_settings_game.construction.freeform_edges) {
		for (y = 0; y < _height_map.size_y - 1; y++) MakeVoid(_height_map.size_x * y);
		for (x = 0; x < _height_map.size_x;     x++) MakeVoid(x);
	}

	/* Transfer height map into OTTD map */
	for (y = 0; y < _height_map.size_y; y++) {
		for (x = 0; x < _height_map.size_x; x++) {
			int height = H2I(_height_map.height(x, y));
			if (height < 0) height = 0;
			if (height > 15) height = 15;
			TgenSetTileHeight(TileXY(x, y), height);
		}
	}

	IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);

	FreeHeightMap();
	GenerateWorldSetAbortCallback(NULL);
}