/// <summary>
/// Generic function to generate the chunk's voxels and voxel features.
/// This does not bake the voxel features into the chunk
/// </summary>
/// <returns></returns>
public virtual void generateVoxelsFor(Chunk chunk)
{
int solidVoxelCount = 0;
byte[] voxels = new byte[Chunk.Diameter * Chunk.Diameter * Chunk.Diameter];
List <ITerrainFeature> features = new List <ITerrainFeature>();
Coordinate chunkWorldLocation = Chunk.IDToWorldLocation(chunk.id);
/// For each XZ location in the chunk:
chunkWorldLocation.xz.until((chunkWorldLocation + Chunk.Diameter).xz, currentWorldXZLocation => {
currentWorldXZLocation.until(currentWorldXZLocation.replaceY(Chunk.Diameter), currentVoxelWorldLocation => {
XZMapData xzData = getMapDataForXZLocation(currentWorldXZLocation);
byte voxelValue = generateVoxelAt(currentVoxelWorldLocation, out ITerrainFeature potentialFeature, xzData);
// if the voxel isn't empty, we add it to the generated data and count it.
if (voxelValue != Voxel.Types.Empty.Id)
{
Coordinate localChunkVoxelLocation = currentVoxelWorldLocation - chunkWorldLocation;
voxels[localChunkVoxelLocation.flatten(Chunk.Diameter)] = voxelValue;
solidVoxelCount++;
}
// add a feature to the list. We don't bake them until after the terrain is generated.
if (potentialFeature != null)
{
features.Add(potentialFeature);
}
});
});
/// <summary>
/// Generate the voxels at the given chunk
/// </summary>
/// <param name="worldLocation"></param>
/// <param name="feature"></param>
/// <returns></returns>
public override byte generateVoxelAt(Coordinate worldLocation, out ITerrainFeature feature, XZMapData xzData)
{
feature = null;
if (worldLocation.y == xzData.surfaceHeight)
{
if (worldLocation.x + worldLocation.y % 12 == 0)
{
// make a new feature at the local chunk location
feature = potentialFeatures[0].make(worldLocation - (Chunk.IDFromWorldLocation(worldLocation) * Chunk.Diameter));
}
return(TerrainBlock.Types.Grass.Id);
}
else if (worldLocation.y < xzData.surfaceHeight)
{
return(TerrainBlock.Types.Dirt.Id);
}
else
{
return(TerrainBlock.Types.Air.Id);
}
}
