public static void GenerateNewTerrain(
Terrain terrain,
Color A, Color B,
int smoothing, float slopeMultiplier,
float scale_1, float height_1,
float scale_2, float height_2,
float scale_3, float height_3,
float scale_4, float height_4)
{
//We want to actually generate the terrain now
TerrainData terrainData = terrain.terrainData;
int xRes = 513; int yRes = 513;
float[,] heightmap = new float[xRes, yRes];
x_offset = Random.Range(0, 10000);
y_offset = Random.Range(0, 10000);
for (int y_pos = 0; y_pos < yRes; y_pos++)
{
for (int x_pos = 0; x_pos < xRes; x_pos++)
{
heightmap[x_pos, y_pos] = Mathf.PerlinNoise(x_pos / scale_1 + x_offset, y_pos / scale_1 + y_offset) * height_1;
heightmap[x_pos, y_pos] += Mathf.PerlinNoise(x_pos / scale_2 + y_offset, y_pos / scale_2 + x_offset) * height_2;
heightmap[x_pos, y_pos] -= Mathf.PerlinNoise(x_pos / scale_3 + x_offset, y_pos / scale_3 + y_offset) * height_3;
heightmap[x_pos, y_pos] += Mathf.PerlinNoise(x_pos / scale_4 + x_offset, y_pos / scale_4 + y_offset) * height_4;
}
}
terrainData.SetHeights(0, 0, heightmap);
//Colour in the terrain based on slope
Texture2D tex2D = new Texture2D(513, 513);
for (int y = 0; y < terrainData.alphamapResolution; y++)
{
for (int x = 0; x < terrainData.alphamapResolution; x++)
{
tex2D.SetPixel(y, x, SlopeToColour(A, B, GetAverageSlopeAtPosition(heightmap, x, y, smoothing) * slopeMultiplier));
}
}
//This is to convert the Texture2D that any sane person would use into the bizarre TerrainLayer array that Unity3D terrain textures use
System.IO.File.WriteAllBytes("Assets/graphics/Terrain Texture.jpg", tex2D.EncodeToJPG());
TerrainManager.SetTexture(terrainData, tex2D);
//Now generate the terrain map
System.IO.File.WriteAllBytes("Assets/graphics/Terrain Map.jpg", TerrainManager.GenerateTerrainMap(heightmap).EncodeToJPG());
}