/// <summary>
/// Sets the density value at a given point, if it is inside the chunk.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="z"></param>
/// <param name="value"></param>
public void SetValueAtPoint(int x, int y, int z, float value)
{
if (0 <= x && x < VoxelUtilities.pointsPerAxis && 0 <= y && y < VoxelUtilities.pointsPerAxis && 0 <= z && z < VoxelUtilities.pointsPerAxis)
{
points[VoxelUtilities.GetIndex(x, y, z)] = Mathf.Clamp01(value);
}
}
/// <summary>
/// Adds to the density value at a given point, if it is inside the chunk.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="z"></param>
/// <param name="amount"></param>
public void AddValueAtPoint(int x, int y, int z, float amount)
{
if (0 <= x && x < VoxelUtilities.pointsPerAxis && 0 <= y && y < VoxelUtilities.pointsPerAxis && 0 <= z && z < VoxelUtilities.pointsPerAxis)
{
points[VoxelUtilities.GetIndex(x, y, z)] += amount;
}
}
/// <summary>
/// Returns the density value at a given point. If the point is outside the chunk,
/// then we return 1 (i.e solid). TODO: Allow Chunks to retrieve values from neigh-
/// bouring chunks.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="z"></param>
/// <returns>Density value at the specified point.</returns>
public float GetValueAtPoint(int x, int y, int z)
{
if (0 <= x && x < VoxelUtilities.pointsPerAxis && 0 <= y && y < VoxelUtilities.pointsPerAxis && 0 <= z && z < VoxelUtilities.pointsPerAxis)
{
return(points[VoxelUtilities.GetIndex(x, y, z)]);
}
else
{
return(1f);
}
}
/// <summary>
/// Generates the initial density values representing the terrain.
/// </summary>
void GetPoints()
{
points = new float[VoxelUtilities.pointsPerAxis * VoxelUtilities.pointsPerAxis * VoxelUtilities.pointsPerAxis];
//for (int z = 6; z < pointsPerAxis - 6; z++)
//{
// for (int y = 14; y < pointsPerAxis -1; y++)
// {
// for (int x = 6; x < pointsPerAxis - 6; x++)
// {
// points[z * pointsPerAxisSqr + y * pointsPerAxis + x] = y < pointsPerAxis - 3 ? 0 : 1f;
// }
// }
//}
points[VoxelUtilities.GetIndex(8, 14, 8)] = 1f;
}