private void PolygonCutterViewer_MouseDown(object sender, MouseEventArgs e)
{
MouseEventOld = e;
int RealX = MouseEventOld.X;
int RealY = MouseEventOld.Y;
PolygonTriangle SelectedPolygonTriangle = PolygonCutterViewer.SelectedPolygonTriangle;
switch (SelectionChoice)
{
#region None
case SelectionChoices.None:
if (PolygonCutterViewer.SelectedPolygonTriangle.SelectionType != PolygonTriangle.SelectionTypes.None)
{
Polygon ActivePolygon = PolygonCutterViewer.SelectedPolygonTriangle.ActivePolygon;
if (e.Button == MouseButtons.Left)
{
SelectionChoice = SelectionChoices.Move;
if (SelectedPolygonTriangle.SelectionType == PolygonTriangle.SelectionTypes.Edge)
{
if (Control.ModifierKeys == Keys.Shift)
{
SelectedPolygonTriangle.VertexIndex = (short)ActivePolygon.ArrayVertex.Length;
ActivePolygon.AddVertexOnEdge(new Vector2(RealX, RealY), SelectedPolygonTriangle.EdgeIndex1, SelectedPolygonTriangle.EdgeIndex2);
ActivePolygon.UpdateWorldPosition(Vector2.Zero, 0f);
}
else if (Control.ModifierKeys == Keys.Alt)
{
SelectedPolygonTriangle.VertexIndex = (short)ActivePolygon.ArrayVertex.Length;
ActivePolygon.SplitEdge(new Vector2(RealX, RealY), SelectedPolygonTriangle.TriangleIndex, SelectedPolygonTriangle.EdgeIndex1, SelectedPolygonTriangle.EdgeIndex2);
ActivePolygon.UpdateWorldPosition(Vector2.Zero, 0f);
}
}
else if (SelectedPolygonTriangle.SelectionType == PolygonTriangle.SelectionTypes.Triangle)
{
if (Control.ModifierKeys == Keys.Shift)
{
ActivePolygon.SplitTriangle(new Vector2(e.X, e.Y), SelectedPolygonTriangle.TriangleIndex);
ActivePolygon.UpdateWorldPosition(Vector2.Zero, 0f);
}
}
}
else if (e.Button == MouseButtons.Right)
{
if (SelectedPolygonTriangle.SelectionType == PolygonTriangle.SelectionTypes.Vertex && SelectedPolygonTriangle.VertexIndex >= 0) //Delete Vertex.
{
SelectedPolygonTriangle.ActivePolygon.RemoveVertex(SelectedPolygonTriangle.VertexIndex);
}
else if (SelectedPolygonTriangle.SelectionType == PolygonTriangle.SelectionTypes.Triangle && SelectedPolygonTriangle.TriangleIndex >= 0) //Delete Triangle.
{
}
}
}
break;
#endregion
case SelectionChoices.SplitPolygon:
PolygonCutterViewer.SplittingPoint1 = new Vector2(e.X, e.Y);
break;
}
}