public static Bunch <Point> Trace(Point _start, Point _end)
{
Bunch <Point> @out = new Bunch <Point>();
Point dif = _end - _start;
if (dif.X != 0 || dif.Y != 0)
{
if (Meth.Abs(dif.X) > Meth.Abs(dif.Y))
{
for (int x = 0; x <= Meth.Abs(dif.X); x++)
{
int nx = _start.X + x * Meth.Sign(dif.X);
int ny = Meth.Round(_start.Y + dif.Y * (x * Math.Sign(dif.X) / (float)dif.X));
@out.Add(new Point(nx, ny));
}
}
else
{
for (int y = 0; y <= Meth.Abs(dif.Y); y++)
{
int nx = Meth.Round(_start.X + dif.X * (y * Meth.Sign(dif.Y) / (float)dif.Y));
int ny = _start.Y + y * Meth.Sign(dif.Y);
@out.Add(new Point(nx, ny));
}
}
}
else
{
@out.Add(_start);
}
return(@out);
}
public override void OnDrag(Vector _position)
{
if (!this.StartedDragging && _position != this.Position)
{
this.StartedDragging = true;
}
if (this.StartedDragging)
{
if (this.Type.Lock.HasValue == !Parent.IsKeyPressed(Key.LControl))
{
Vector l = (this.Type.Lock.HasValue ? this.Type.Lock.Value : (Vector)this.Parent.TileSize);
Point t = new Point(Meth.Round(_position.X / Parent.TileSize.X - l.X), Meth.Round(_position.Y / Parent.TileSize.Y - l.Y));
this.Position = (t + l) * Parent.TileSize;
}
else
{
this.Position = (Point)_position;
}
this.Layer.EntitiesChanged = true;
}
}