unity使用棍子打断铁链。使用Obi Rope_obi rope 6.4

这里使用的是Obi Rope 6.4
使用Chains默认的Demo场景

• 在Obi Solver挂载以下脚本。
• 将脚本的rope变量设置为Obi Solver的子物体Obi Chain。
• 铁链撞击到任意Targets，铁链即可查看到效果。

如果播放后，Target物体掉落可将其重力关闭，锁住坐标与旋转变换。
脚本文件取自:

http://obi.virtualmethodstudio.com/manual/6.3/scriptingcollisions.html

http://obi.virtualmethodstudio.com/manual/6.3/scriptingropes.html

using UnityEngine;
using Obi;

[RequireComponent(typeof(ObiSolver))]
public class CollisionEventHandler : MonoBehaviour
{

    ObiSolver solver;
    public ObiRope rope;
    private bool isTear = true;

    void Awake()
    {
        solver = GetComponent<ObiSolver>();
    }

    void OnEnable()
    {
        solver.OnCollision += Solver_OnCollision;
    }

    void OnDisable()
    {
        solver.OnCollision -= Solver_OnCollision;
    }

    void Solver_OnCollision(object sender, Obi.ObiSolver.ObiCollisionEventArgs e)
    {
        var world = ObiColliderWorld.GetInstance();

        // just iterate over all contacts in the current frame:
        foreach (Oni.Contact contact in e.contacts)
        {
            // if this one is an actual collision:
            if (contact.distance < 0.01)
            {
                ObiColliderBase col = world.colliderHandles[contact.bodyB].owner;
                if (col != null)
                {
                    // do something with the collider.
                    // print(col.gameObject.name);
                    int particleIndex = solver.simplices[contact.bodyA];
                    print(particleIndex);
                    if(isTear)
                    {
                        isTear = false;  
                        rope.Tear(rope.elements[particleIndex]);
                        rope.RebuildConstraintsFromElements();
                    }
                }
            }
        }
    }
}
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