private void GetNeighboursAndObstaclesViaMesh()
{
neighbours = new List <Neighbour>();
obstacles = new List <Vector3>();
var spaceState = GetWorld().DirectSpaceState;
var perceptionShape = GetNode("perceptionMesh") as MeshInstance;
if (perceptionShape == null)
{
return;
}
PhysicsShapeQueryParameters collisionShape = new PhysicsShapeQueryParameters();
collisionShape.SetTransform(perceptionShape.GetGlobalTransform());;
collisionShape.SetShape(perceptionShape.Mesh.CreateConvexShape());
var result = spaceState.IntersectShape(collisionShape);
foreach (Godot.Collections.Dictionary collision in result)
{
if (collision.ContainsKey("collider"))
{
if (collision["collider"] is Critter critter && critter != this)
{
neighbours.Add(new Neighbour(critter));
continue;
}
else if (collision["collider"] is StaticBody staticBody && staticBody.IsInGroup("obstacles"))
{
// Cast ray to object's origin to find where it hits
var rayResult = spaceState.IntersectRay(this.Transform.origin, staticBody.Transform.origin);
if (rayResult.Count > 0)
{
obstacles.Add((Vector3)rayResult["position"]);
}
}
}
}
public bool PlaceBlock(byte blockId)
{
var hitInfo = GetHitInfo();
if (hitInfo != null)
{
Vector3 pos = (Vector3)hitInfo["position"] + (Vector3)hitInfo["normal"] * 0.5f * Block.SIZE;
IntVector3 blockPos = new IntVector3((int)Mathf.Round(pos.x / Block.SIZE), (int)Mathf.Round(pos.y / Block.SIZE), (int)Mathf.Round(pos.z / Block.SIZE));
Vector3 blockCollisionPos = new Vector3(blockPos.x, blockPos.y, blockPos.z) * Block.SIZE;
BoxShape bs = new BoxShape();
bs.SetExtents(new Vector3(Block.SIZE, Block.SIZE, Block.SIZE) / 2);
PhysicsShapeQueryParameters psqp = new PhysicsShapeQueryParameters();
psqp.SetShape(bs);
Transform t = new Transform(new Vector3(1.0f, 0.0f, 0.0f), new Vector3(0.0f, 1.0f, 0.0f), new Vector3(0.0f, 0.0f, 1.0f), new Vector3(0.0f, 0.0f, 0.0f)).Translated(blockCollisionPos);
psqp.SetTransform(t);
object[] res = spaceState.IntersectShape(psqp);
if (res.Length > 0)
{
for (int i = 0; i < res.Length; i++)
{
Dictionary <object, object> info = (Dictionary <object, object>)spaceState.IntersectShape(psqp)[i];
if (info["collider"] is KinematicBody)
{
// A moving body (player, animal etc.) is in the way
return(false);
}
}
}
terrain.SetBlock(blockPos, blockId);
return(true);
}
return(false);
}