public void OnLeftMousePressed(Vector2 mousePos)
{
if (Keyboard.IsKeyDown(Key.A))
{
dragMode = MouseDragMode.CameraRadiusChange;
}
else if (Keyboard.IsKeyDown(Key.LeftCtrl))
{
dragMode = MouseDragMode.CameraRotate;
}
else if (Keyboard.IsKeyDown(Key.LeftAlt))
{
dragMode = MouseDragMode.CameraMove;
}
else if (Keyboard.IsKeyDown(Key.C))
{
dragMode = MouseDragMode.CursorMove;
}
else if (Keyboard.IsKeyDown(Key.S))
{
dragMode = MouseDragMode.SelectPoints;
dragStartPosition = dragActualPosition = MousePosition;
}
else // dragging point
{
CatPoint clicked;
if (SelectClickedPoint(mousePos, out clicked))
{
dragMode = MouseDragMode.PointMove;
draggedPoint = clicked;
pointPlane = new Plane(draggedPoint.Position, (draggedPoint.Position - ActiveCamera.CameraPosition).Normalized());
}
}
}
public void OnLeftMouseReleased()
{
if (dragMode == MouseDragMode.SelectPoints)
{
var dragEnd = MousePosition;
var minX = System.Math.Min(dragEnd.X, dragStartPosition.X) / ScreenSize.X;
var maxX = System.Math.Max(dragEnd.X, dragStartPosition.X) / ScreenSize.X;
var minY = System.Math.Min(dragEnd.Y, dragStartPosition.Y) / ScreenSize.Y;
var maxY = System.Math.Max(dragEnd.Y, dragStartPosition.Y) / ScreenSize.Y;
var ptsList = new List <CatPoint>();
var cameraMatrix = ActiveCamera.ViewProjectionMatrix;
foreach (var catPoint in GetPoints().Where(x => x.Visible))
{
var pt = (cameraMatrix * new Vector4(catPoint.Position)).ToNormalizedVector3() / 2 + 0.5f;
if (pt.X < maxX && pt.X > minX && pt.Y < maxY && pt.Y > minY)
{
ptsList.Add(catPoint);
}
}
if (!Keyboard.IsKeyDown(Key.LeftCtrl))
{
foreach (var catPoint in Points)
{
catPoint.IsSelected = false;
}
}
foreach (var catPoint in ptsList)
{
catPoint.IsSelected = true;
}
}
dragMode = MouseDragMode.None;
draggedPoint = null;
}
