// Check if polygon has ball objects inside
public static bool PolygonHasBallsInside(Polygon2D poly)
{
foreach (ThinSliceBall ball in ThinSliceBall.GetList())
{
if (poly.PointInPoly(new Vector2D(ball.transform.position)) == true)
{
return(true);
}
}
return(false);
}
// Before Slice - Get smallest polygon which does not have balls in it
Polygon2D GetCutPolygon(Slice2D sliceResult)
{
double area = 1e+10f;
Polygon2D CutObject = null;
foreach (Polygon2D poly in sliceResult.polygons)
{
if (poly.GetArea() < area && ThinSliceBall.PolygonHasBallsInside(poly) == false)
{
CutObject = poly;
area = poly.GetArea();
}
}
return(CutObject);
}
// After Slice - Get smallest polygon which does not have balls in it
GameObject GetCutGameObject(Slice2D sliceResult)
{
double area = 1e+10f;
GameObject CutObject = null;
foreach (GameObject resultObject in sliceResult.gameObjects)
{
Polygon2D poly = Polygon2DList.CreateFromGameObject(resultObject)[0];
if (poly.GetArea() < area && ThinSliceBall.PolygonHasBallsInside(poly.ToWorldSpace(resultObject.transform)) == false)
{
CutObject = resultObject;
area = poly.GetArea();
}
}
return(CutObject);
}
public void BallToBallsCollision()
{
// Balls vs Balls Collision
foreach (ThinSliceBall ball in ThinSliceBall.GetList())
{
if (ball == this)
{
continue;
}
if (Vector2.Distance(transform.position, ball.transform.position) < ball.radius + radius)
{
ball.direction = Vector2D.RotToVec(Vector2D.Atan2(transform.position, ball.transform.position) - Mathf.PI).ToVector2();
direction = Vector2D.RotToVec(Vector2D.Atan2(transform.position, ball.transform.position)).ToVector2();
ball.transform.Translate(ball.direction * ball.speed);
transform.Translate(direction * speed);
}
}
}
// This manages ball movement and collisions with level walls
void UpdateMovement()
{
transform.Translate(direction * speed);
float ballSize = 1;
// Balls vs Map Collisions
foreach (Slicer2D slicer in Slicer2D.GetList())
{
foreach (Pair2D id in Pair2D.GetList(slicer.GetPolygon().ToWorldSpace(slicer.transform).pointsList))
{
if (Math2D.LineIntersectCircle(id, new Vector2D(transform.position), ballSize) == true)
{
transform.Translate(direction * -speed);
SetDirection(Math2D.ReflectAngle(direction, (float)Vector2D.Atan2(id.A, id.B)));
transform.Translate(direction * speed);
}
}
}
// Balls vs Balls Collision
foreach (ThinSliceBall ball in ThinSliceBall.GetList())
{
if (ball == this)
{
continue;
}
if (Vector2.Distance(transform.position, ball.transform.position) < ballSize + ballSize)
{
ball.direction = Vector2D.RotToVec(Vector2D.Atan2(transform.position, ball.transform.position) - Mathf.PI).ToVector2();
direction = Vector2D.RotToVec(Vector2D.Atan2(transform.position, ball.transform.position)).ToVector2();
ball.transform.Translate(ball.direction * ball.speed);
transform.Translate(direction * speed);
}
}
}