public virtual void HandleCollisions(ChunkManager chunks, float dt)
{
if (CollideMode == CollisionMode.None)
{
return;
}
Voxel currentVoxel = new Voxel();
bool success = chunks.ChunkData.GetVoxel(null, LocalTransform.Translation, ref currentVoxel);
List <Voxel> vs = new List <Voxel>
{
currentVoxel
};
VoxelChunk chunk = chunks.ChunkData.GetVoxelChunkAtWorldLocation(LocalTransform.Translation);
if (!success || currentVoxel == null || chunk == null)
{
return;
}
Vector3 grid = chunk.WorldToGrid(LocalTransform.Translation);
List <Voxel> adjacencies = chunk.GetNeighborsEuclidean((int)grid.X, (int)grid.Y, (int)grid.Z);
vs.AddRange(adjacencies);
// TODO: Find a faster way to do this
// Vector3 half = Vector3.One*0.5f;
//vs.Sort((a, b) => (MathFunctions.L1(LocalTransform.Translation, a.Position + half).CompareTo(MathFunctions.L1(LocalTransform.Translation, b.Position + half))));
int y = (int)Position.Y;
foreach (Voxel v in vs)
{
if (v == null || v.IsEmpty)
{
continue;
}
if (CollideMode == CollisionMode.UpDown && (int)v.GridPosition.Y == y)
{
continue;
}
if (CollideMode == CollisionMode.Sides && (int)v.GridPosition.Y != y)
{
continue;
}
BoundingBox voxAABB = v.GetBoundingBox();
if (Collide(voxAABB))
{
OnTerrainCollision(v);
}
}
}
public bool CollidesWithChunks(ChunkManager chunks, Vector3 pos, bool applyForce)
{
BoundingBox box = new BoundingBox(pos - new Vector3(0.5f, 0.5f, 0.5f), pos + new Vector3(0.5f, 0.5f, 0.5f));
Voxel currentVoxel = new Voxel();
bool success = chunks.ChunkData.GetVoxel(null, pos, ref currentVoxel);
List <Voxel> vs = new List <Voxel>
{
currentVoxel
};
VoxelChunk chunk = chunks.ChunkData.GetVoxelChunkAtWorldLocation(pos);
if (!success || currentVoxel == null || chunk == null)
{
return(false);
}
Vector3 grid = chunk.WorldToGrid(pos);
List <Voxel> adjacencies = chunk.GetNeighborsEuclidean((int)grid.X, (int)grid.Y, (int)grid.Z);
vs.AddRange(adjacencies);
bool gotCollision = false;
foreach (Voxel v in vs)
{
if (v.IsEmpty || !v.IsVisible)
{
continue;
}
BoundingBox voxAABB = v.GetBoundingBox();
if (box.Intersects(voxAABB))
{
gotCollision = true;
if (applyForce)
{
Collide(box, voxAABB);
}
else
{
return(true);
}
}
}
return(gotCollision);
}
