public static VoxLocation?GetLevel(Ray camRay, VoxState state, int h)
{
camRay.Position -= new Vector3(state.World.worldMin.X * Region.WIDTH, 0, state.World.worldMin.Y * Region.DEPTH);
VRay vr = new VRay(camRay.Position, camRay.Direction);
Vector3I loc = vr.GetNextLocation();
// Check For World Intersect
BoundingBox bb = new BoundingBox(new Vector3(0, h - 1, 0), new Vector3(VoxWorld.WIDTH * Region.WIDTH, h, VoxWorld.DEPTH * Region.DEPTH));
if (!camRay.Intersects(bb).HasValue)
{
return(null);
}
// Move In World
while (!IsInBounds(loc))
{
loc = vr.GetNextLocation();
}
// Move Through World
while (IsInBounds(loc))
{
VoxLocation vl = new VoxLocation(loc);
Region region = state.World.regions[vl.RegionIndex];
ushort id = region.voxels[vl.VoxelIndex].ID;
if (loc.Y == h)
{
return(vl);
}
loc = vr.GetNextLocation();
}
return(null);
}
public static VoxLocation?GetOuter(Ray camRay, VoxState state)
{
camRay.Position -= new Vector3(state.World.worldMin.X * Region.WIDTH, 0, state.World.worldMin.Y * Region.DEPTH);
VRay vr = new VRay(camRay.Position, camRay.Direction);
Vector3I loc = vr.GetNextLocation();
// Check For World Intersect
BoundingBox bb = new BoundingBox(Vector3.Zero, new Vector3(VoxWorld.WIDTH * Region.WIDTH, Region.HEIGHT, VoxWorld.DEPTH * Region.DEPTH));
if (!camRay.Intersects(bb).HasValue)
{
return(null);
}
// Move In World
while (!IsInBounds(loc))
{
loc = vr.GetNextLocation();
}
// Move Through World
VoxLocation pvl = new VoxLocation(loc);
while (IsInBounds(loc))
{
VoxLocation vl = new VoxLocation(loc);
Region region = state.World.regions[vl.RegionIndex];
if (region != null)
{
ushort id = region.voxels[vl.VoxelIndex].ID;
if (id != 0)
{
return(pvl);
}
}
loc = vr.GetNextLocation();
pvl = vl;
}
return(null);
}