private bool CheckCapsuleAndCapsule(HitableCapsule capsuleA, HitableCapsule capsuleB)
{
// 求两个线段离得最近的点，求点之间的距离
// 距离小于半径之和就碰撞
return(false);
}
private bool CheckCapsuleAndSphere(HitableCapsule capsule, HitableSphere sphere)
{
var dx = sphere.Point.x - capsule.Point.x;
var dy = sphere.Point.y - capsule.Point.y;
var t = (capsule.Vec.x * dx + capsule.Vec.y * dy) /
(capsule.Vec.x * capsule.Vec.x + capsule.Vec.y * capsule.Vec.y);
t = Mathf.Clamp01(t);
var mx = capsule.Vec.x * t + capsule.Point.x;
var my = capsule.Vec.y * t + capsule.Point.y;
var disSqrt = (mx - sphere.Point.x) * (mx - sphere.Point.x) +
(my - sphere.Point.y) * (my - sphere.Point.y);
var radiusSum = capsule.Radius + sphere.Radius;
if (disSqrt <= radiusSum * radiusSum)
{
return(true);
}
return(false);
}
private bool CheckCapsuleAndCube(HitableCapsule capsule, HitableCube cube)
{
return(false);
}
