Vector2 GetOverlap(ICollidingEntity other)
{
Rect r1 = GetNextRect();
Rect r2 = other.GetNextRect();
Vector2 dir = (GetNextFramePosition() - new Vector2(this.transform.position.x, this.transform.position.y)).normalized;
Vector2 overlap = new Vector2(0, 0);
if (!other.invertedCollider)
{
//collides on the right
if (dir.x > 0 && r1.xMax > r2.xMin)
{
overlap.x += (r1.xMax - r2.xMin);
}
//collides on the left
if (dir.x < 0 && r1.xMin < r2.xMax)
{
overlap.x -= (r2.xMax - r1.xMin);
}
//collides on the top
if (dir.y > 0 && r1.yMax > r2.yMin)
{
overlap.y += (r1.yMax - r2.yMin);
}
//collides on the bottom
if (dir.y < 0 && r1.yMin < r2.yMax)
{
overlap.y -= (r2.yMax - r1.yMin);
}
}
else
{
//collides on the right
if (dir.x > 0 && r1.xMax > r2.xMax)
{
overlap.x += (r1.xMax - r2.xMax);
}
//collides on the left
if (dir.x < 0 && r1.xMin < r2.xMin)
{
overlap.x -= (r2.xMin - r1.xMin);
}
//collides on the top
if (dir.y > 0 && r1.yMax > r2.yMax)
{
overlap.y += (r1.yMax - r2.yMax);
}
//collides on the bottom
if (dir.y < 0 && r1.yMin < r2.yMin)
{
overlap.y -= (r2.yMin - r1.yMin);
}
}
return(overlap);
}
public bool Overlaps(ICollidingEntity other)
{
Rect r1 = GetNextRect();
Rect r2 = other.GetNextRect();
if (!invertedCollider && !other.invertedCollider)
{
return(r1.Overlaps(r2));
}
else if (!invertedCollider && other.invertedCollider)
{
if (!r1.Overlaps(r2))
{
return(true);
}
var a = r2.Contains(new Vector2(r1.xMax, r1.yMax));
var b = r2.Contains(new Vector2(r1.xMax, r1.yMin));
var c = r2.Contains(new Vector2(r1.xMin, r1.yMax));
var d = r2.Contains(new Vector2(r1.xMin, r1.yMin));
int pointCount = 0;
if (a)
{
pointCount++;
}
if (b)
{
pointCount++;
}
if (c)
{
pointCount++;
}
if (d)
{
pointCount++;
}
return(pointCount < 4);
}
return(false);
}