private void EntityAdded(EntityPlacement placement)
{
var ctrl = new EntityPlacementControl();
var info = this.Screen.Stage.Project.EntityByName(placement.entity);
var vm = new EntityPlacementControlViewModel(placement, info, Screen);
ctrl.DataContext = vm;
ctrl.Visibility = Visibility.Visible;
PositionControl(ctrl, vm);
Canvas.SetZIndex(ctrl, 10000);
vm.PlacementModified += (s, e) => PositionControl(ctrl, vm);
this.Children.Add(ctrl);
Update();
}
private void PositionControl(EntityPlacementControl ctrl, EntityPlacementControlViewModel viewModel)
{
if (viewModel.DefaultSprite != null)
{
bool flipHorizontal = (viewModel.Placement.direction == Direction.Left) ^ viewModel.DefaultSprite.Reversed;
var offset = flipHorizontal ? viewModel.DefaultSprite.Width - viewModel.DefaultSprite.HotSpot.X : viewModel.DefaultSprite.HotSpot.X;
Canvas.SetLeft(ctrl, Zoom * (viewModel.Placement.screenX - offset));
Canvas.SetTop(ctrl, Zoom * (viewModel.Placement.screenY - viewModel.DefaultSprite.HotSpot.Y));
}
else
{
Canvas.SetLeft(ctrl, Zoom * viewModel.Placement.screenX);
Canvas.SetTop(ctrl, Zoom * viewModel.Placement.screenY);
}
InvalidateVisual();
}