//Is a triangle intersecting with a triangle?
private void TriangleTriangle()
{
//3d to 2d
Triangle2 t1 = new Triangle2(
t1_p1_trans.transform.position.ToMyVector2(),
t1_p2_trans.transform.position.ToMyVector2(),
t1_p3_trans.transform.position.ToMyVector2());
Triangle2 t2 = new Triangle2(
t2_p1_trans.transform.position.ToMyVector2(),
t2_p2_trans.transform.position.ToMyVector2(),
t2_p3_trans.transform.position.ToMyVector2());
bool isIntersecting = _Intersections.TriangleTriangle2D(t1, t2, do_AABB_test: false);
//Display
//Color color = isIntersecting ? Color.red : Color.white;
//TestAlgorithmsHelpMethods.DisplayTriangle(t1.p1.ToVector3(), t1.p2.ToVector3(), t1.p3.ToVector3(), color);
//TestAlgorithmsHelpMethods.DisplayTriangle(t2.p1.ToVector3(), t2.p2.ToVector3(), t2.p3.ToVector3(), color);
//With mesh to better see what's going on
TestAlgorithmsHelpMethods.DisplayTriangleMesh(t1.p1, t1.p2, t1.p3, Color.white);
Color meshColor = isIntersecting ? Color.red : Color.white;
TestAlgorithmsHelpMethods.DisplayTriangleMesh(t2.p1, t2.p2, t2.p3, meshColor);
}
//Is a point intersecting with a triangle?
private void PointTriangle()
{
MyVector2 p = pointTrans.position.ToMyVector2();
MyVector2 t_p1 = t1_p1_trans.position.ToMyVector2();
MyVector2 t_p2 = t1_p2_trans.position.ToMyVector2();
MyVector2 t_p3 = t1_p3_trans.position.ToMyVector2();
Triangle2 t = new Triangle2(t_p1, t_p2, t_p3);
bool isIntersecting = _Intersections.PointTriangle(t, p, includeBorder: true);
//Display
//Gizmos.color = isIntersecting ? Color.red : Color.white;
//Gizmos.DrawWireSphere(p.ToVector3(), 0.1f);
//Gizmos.DrawLine(t.p1.ToVector3(), t.p2.ToVector3());
//Gizmos.DrawLine(t.p2.ToVector3(), t.p3.ToVector3());
//Gizmos.DrawLine(t.p3.ToVector3(), t.p1.ToVector3());
//With mesh to better see what's going on
//Triangle
TestAlgorithmsHelpMethods.DisplayTriangleMesh(t_p1, t_p2, t_p3, Color.white);
//Point
Color pointColor = isIntersecting ? Color.red : Color.white;
TestAlgorithmsHelpMethods.DisplayCircleMesh(p, 1f, 20, pointColor);
}