private static Rectangle CalculateArrowDrawArea(Material material, Vector2D start, Vector2D target)
{
start += Vector2D.Normalize(start.DirectionTo(target)) * 0.033f;
target -= Vector2D.Normalize(start.DirectionTo(target)) * 0.033f;
var distance = start.DistanceTo(target);
var size = new Size(distance, distance / material.DiffuseMap.PixelSize.AspectRatio);
return Rectangle.FromCenter((start + target) / 2, size * GameLogic.ArrowSize);
}
private static Rectangle CalculateArrowDrawArea(Material material, Vector2D start, Vector2D target)
{
start += Vector2D.Normalize(start.DirectionTo(target)) * 0.033f;
target -= Vector2D.Normalize(start.DirectionTo(target)) * 0.033f;
var distance = start.DistanceTo(target);
var size = new Size(distance, distance / material.DiffuseMap.PixelSize.AspectRatio);
return(Rectangle.FromCenter((start + target) / 2, size * GameLogic.ArrowSize));
}
private void OnReleasing()
{
if (grabbedBall != null)
{
grabbedBall.LinearVelocity = lastMousePosition.DirectionTo(grabbedBall.Position) * 4f;
}
grabbedBall = null;
}
private static void ZoomLinePoints(List <Vector2D> points, float zoomAmount)
{
Vector2D center = Vector2D.Half;
for (int i = 0; i < points.Count; i++)
{
points[i] = center + center.DirectionTo(points[i]) * (1 + zoomAmount);
}
}
private Vector2D GetNextPathPosition(Vector2D formerPosition)
{
var nextPosition = formerPosition +
formerPosition.DirectionTo(Path.Path[nextPathIndex].Position);
if (nextPosition == Path.Path[nextPathIndex].Position)
nextPathIndex++;
if (nextPathIndex >= Path.Path.Count)
{
nextPathIndex = 1;
nextPosition = Path.Path[0].Position;
}
lastPosition = nextPosition;
return nextPosition + Vector2D.Half;
}
private Vector2D GetNextPathPosition(Vector2D formerPosition)
{
var nextPosition = formerPosition +
formerPosition.DirectionTo(Path.Path[nextPathIndex].Position);
if (nextPosition == Path.Path[nextPathIndex].Position)
{
nextPathIndex++;
}
if (nextPathIndex >= Path.Path.Count)
{
nextPathIndex = 1;
nextPosition = Path.Path[0].Position;
}
lastPosition = nextPosition;
return(nextPosition + Vector2D.Half);
}
private float GetRotation()
{
return(lastPosition.DirectionTo(Path.Path[nextPathIndex].Position).GetRotation() + 90.0f);
}
public void DirectionTo()
{
Assert.AreEqual(new Vector2D(2, -6), v1.DirectionTo(v2));
}