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;
}
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;
}
