internal static void separateTheLandFromTheWater(World world, PerlinRadialShape perlinIslandShape)
{
// assign coarse water/land separation to corners
foreach (Corner corner in world.corners)
{
bool isWater = !isInsideShape(perlinIslandShape, corner.coord.toVector3());
if (corner.isBorder)
{
corner.terrainType = TerrainType.OCEAN;
}
else if (isWater)
{
corner.terrainType = TerrainType.LAKE;
}
else
{
corner.terrainType = TerrainType.LAND;
}
}
// assign coarse water/land separation to centers
List <Center> borderCenters = new List <Center>();
foreach (Center center in world.centers)
{
int waterCornerCount = 0;
foreach (Corner corner in center.corners)
{
if (corner.isBorder)
{
center.terrainType = TerrainType.OCEAN;
borderCenters.Add(center);
continue;
}
if (corner.isWater())
{
waterCornerCount++;
}
}
if (center.terrainType == TerrainType.OCEAN)
{
continue;
}
else if (waterCornerCount >= center.corners.Count * LAKE_THRESHOLD)
{
center.terrainType = TerrainType.LAKE;
}
else
{
center.terrainType = TerrainType.LAND;
}
}
floodFillOceanCenters(borderCenters);
markOceanCenters(world.centers);
// TODO: coast and shallows
}
private static bool isInsideShape(PerlinRadialShape shape, Vector3 coordinate)
{
return(shape.isInside(coordinate.x, coordinate.z));
}
