public void RenderAABB(AxisAlignedBoundingBox aabb)
{
Color color = new Color(1, 1, 1, 0.3f);
float x, y, w, h;
x = aabb.min.X;
y = aabb.min.Y;
w = aabb.max.X - x;
h = aabb.max.Y - y;
linebatch.Add(new LineVertex(new Vector3(x + w * 0, y + h * 0, 0), color));
linebatch.Add(new LineVertex(new Vector3(x + w * 0, y + h * 1, 0), color));
linebatch.Add(new LineVertex(new Vector3(x + w * 0, y + h * 1, 0), color));
linebatch.Add(new LineVertex(new Vector3(x + w * 1, y + h * 1, 0), color));
linebatch.Add(new LineVertex(new Vector3(x + w * 1, y + h * 1, 0), color));
linebatch.Add(new LineVertex(new Vector3(x + w * 1, y + h * 0, 0), color));
linebatch.Add(new LineVertex(new Vector3(x + w * 1, y + h * 0, 0), color));
linebatch.Add(new LineVertex(new Vector3(x + w * 0, y + h * 0, 0), color));
}
public void SetWorldLimits(Vector2 min, Vector2 max)
{
aabb = new AxisAlignedBoundingBox(ref min, ref max);
size = max - min;
cell = size / 32;
}
public bool Intersects(ref AxisAlignedBoundingBox aabb)
{
// Exit with no intersecton if separated along an axis
if (this.max.X < aabb.min.X || this.min.X > aabb.max.X) return false;
if (this.max.Y < aabb.min.Y || this.min.Y > aabb.max.Y) return false;
// Overlapping on all axis means AABBs are intersecting
return true;
}