private static void PollSelection(GameWindow window, MouseState mouseState, KeyboardState keyboardState) // TODO: raycast is performed wrong on shapes' edges; check!
{
var startWorld = RaycastResult.StartWorld.ToBullet3();
var endWorld = RaycastResult.EndWorld.ToBullet3();
using (var raycastCallback = new ClosestRayResultCallback(ref startWorld, ref endWorld))
{
PhysicsHandler.RayTestRef(ref startWorld, ref endWorld, raycastCallback);
if (/*window.IsMouseButtonPressed(MouseButton.Right)*/ mouseState.IsButtonDown(MouseButton.Right) && _lastState.IsButtonUp(MouseButton.Right)) // TODO: perhaps use Window built-in method?
{
if (raycastCallback.HasHit)
{
if (!keyboardState.IsKeyDown(Key.ControlLeft) && SelectedObjects.Find(x => x != raycastCallback.CollisionObject) != null)
{
// Control is not pressed and other objects are already selected ---> clear selection and add the new object to the selection
ClearAndAddSelection(raycastCallback.CollisionObject);
}
else
{
// add the object to the selection if it's not there yet
if (!SelectedObjects.Contains(raycastCallback.CollisionObject))
{
AddSelection(raycastCallback.CollisionObject);
}
else
{
RemoveSelection(raycastCallback.CollisionObject);
}
}
}
else
{
// no object is selected ---> clear selection
ClearSelection();
}
}
}
}