public void AddedEntityAmongNoOtherEntitiesWillNotBeFoundByWrongPosition()
{
Entity entityInPosition;
int id = 1;
WorldGrid worldGrid = new WorldGrid();
Vector3 position = new Vector3(0.0f, 0.0f, 0.0f);
worldGrid.AddEntity(new Sphere(id, position, Color.Black));
entityInPosition = worldGrid.GetEntityByVoxelPosition(new IntVector(1, 0, 0));
Assert.IsNull(entityInPosition);
}
public void AddedEntityAmongNoOtherEntitiesWillBeFoundByFractionalPosition()
{
Entity entityInPosition;
int id = 1;
WorldGrid worldGrid = new WorldGrid();
Vector3 position = new Vector3(1.9f, 0.5f, -3.6f);
worldGrid.AddEntity(new Sphere(id, position, Color.Black));
entityInPosition = worldGrid.GetEntityByVoxelPosition((IntVector)position);
Assert.IsNotNull(entityInPosition, "No entity was found at the position");
Assert.AreEqual <Vector3>(position, entityInPosition.GetPosition(), "The added and the found entity did not have the same position.");
Assert.AreEqual <int>(id, entityInPosition.GetIndex(), "The added and the found entity did not have the same index.");
}