/*
* private static Vector3 GetPlaneNormalVector(Vector3 p1, Vector3 p2, Vector3 p3)
* {
* Vector3 v1 = p2 - p1;
* Vector3 v2 = p3 - p1;
* Vector3 normal = Vector3.Cross(v1, v2);
* normal.Normalize();
* return normal;
* }
*
* public static bool CuboidCuboidTest(Vector3[] C1Points, Vector3[] C2Points)
* {
* Vector3[] normalVectors = new Vector3[6];
* normalVectors[0] = GetPlaneNormalVector(C1Points[0], C1Points[3], C1Points[2]);
* normalVectors[1] = GetPlaneNormalVector(C1Points[0], C1Points[4], C1Points[7]);
* normalVectors[2] = GetPlaneNormalVector(C1Points[3], C1Points[2], C1Points[6]);
*
* normalVectors[3] = GetPlaneNormalVector(C2Points[0], C2Points[3], C2Points[2]);
* normalVectors[4] = GetPlaneNormalVector(C2Points[0], C2Points[4], C2Points[7]);
* normalVectors[5] = GetPlaneNormalVector(C2Points[3], C2Points[2], C2Points[6]);
*
* bool isIntersect = true;
* for (int i = 0; i < 6; i++)
* {
* Vector3 normal = normalVectors[i];
* //
* float c1Max = float.MinValue;
* float c1Min = float.MaxValue;
* foreach (var v in C1Points)
* {
* float projectValue = Vector3.Dot(v,normal);
* if (projectValue > c1Max)
* {
* c1Max = projectValue;
* }
* if (projectValue < c1Min)
* {
* c1Min = projectValue;
* }
* }
* //
* float c2Max = float.MinValue;
* float c2Min = float.MaxValue;
* foreach (var v in C2Points)
* {
* float projectValue = Vector3.Dot(v, normal);
* if (projectValue > c2Max)
* {
* c2Max = projectValue;
* }
* if (projectValue < c2Min)
* {
* c2Min = projectValue;
* }
* }
* //
* if (c2Min > c1Max || c1Min > c2Max)
* {
* isIntersect = false;
* //Debug.Log("c1Min:" + c1Min + " c1Max" + c1Max + " c2Min:" + c2Min + " c2Max" + c2Max);
* break;
* }
*
* }//for six separate axis
* return isIntersect;
* }
*/
public static bool RectRectTest(Rect rect1, Rect rect2)
{
bool isIntersect = false;
if (Math.Abs(rect1.position.x - rect2.position.x) < (rect1.width + rect2.width) / 2 && Math.Abs(rect2.position.y - rect1.position.y) < (rect1.height + rect2.height) / 2)
{
isIntersect = true;
}
return(isIntersect);
}
public static bool RectColliderIntersectTest(Collider c1, Collider c2, out ContactInfo contactInfo)
{
var rc1 = c1 as RectCollider;
var rc2 = c2 as RectCollider;
contactInfo = null;
bool intersect = !((rc1.xMin > rc2.xMax || rc2.xMin > rc1.xMax) || (rc1.yMin > rc2.yMax || rc2.yMin > rc1.yMax));
if (intersect)
{
Vector dir = new Vector(rc1.Position.x > rc2.Position.x ? 1 : -1, 0);
Number depth = (rc1.Width + rc2.Width) / 2 - Math.Abs(rc1.Position.x - rc2.Position.x);
contactInfo = new ContactInfo()
{
recoverDir = dir, depth = depth
};
return(true);
}
return(intersect);
}
