protected override CollisionResult ContactWithCircle(ConvexCircle otherCircle)
{
//We use circle collide rect to chcek
//reduce duplicate code because code is all most the same only
//rectangle inside circle need to be checked
CollisionResult result = otherCircle.IntersectWithShape(this);
//Check rectangle is inside circle when overlap
if (result == CollisionResult.Overlap)
{
/**
* For each corner of recntangle
* we check if corner inside circle
*
* Return fit if all corner insdie circle
**/
Vector2[] corners = AllCorners;
IEnumerator ie = corners.GetEnumerator();
while (ie.MoveNext())
{
//projection axis from corner to circle center
Vector2 p = otherCircle.Center - (Vector2)ie.Current;
//corner projection
float cornerP = Vector2.Dot(p.normalized, (Vector2)ie.Current);
//circle center projection
float circleP = Vector2.Dot(p.normalized, otherCircle.Center);
//if corner projection is outside of circle return overlap
if ((circleP - otherCircle.Radius) > cornerP || (circleP + otherCircle.Radius) < cornerP)
{
return(result);
}
}
return(CollisionResult.Fit);
}
//If circle fit in this rectangle return overlap
//as from rectangle poit of view rectangle overlap circle
if (result == CollisionResult.Fit)
{
return(CollisionResult.Overlap);
}
return(result);
}
protected override CollisionResult ContactWithCircle(ConvexCircle otherCircle)
{
return(otherCircle.IntersectWithShape(this));
}