简单投掷色子的脚本翻译及说明
using UnityEngine;using System;// 一个为摇色子服务的脚本// 色子朝上的面默认为世界空间的正方向，只用1，2，3来定义世界空间// 的向量，比如1代表世界的上，2代表右，3代表前public delegate void RollCompleteEvent(object sender, int faceUp);// 这个类代表一个六面色子的行为. 当这个类加载的时候，色子会以机//作加载在空中。// 当色子停下后 event RollComplete 会被激活public sealed class DieBehaviour : MonoBehaviour {#region "Events"public event RollCompleteEvent RollComplete;#endregion#region "Private Members" //色子可能的朝向 //Vector3.up 1(+) or 6(-) //Vector3.right, 2(+) or 5(-) //Vector3.forward]; 3(+) or 4(-) Vector3[] _sides = {Vector3.up, Vector3.right, -Vector3.forward }; //声明isSleeping变量为否，即开始加载rigidbody给色子 private bool _isSleeping = false;#endregion#region "Private Methods"//寻找色子哪个面朝上，将结果返回 private int WhichIsUp(){ //定义maxY为负无穷 float maxY = float.NegativeInfinity; int result = -1; for(int i=0; i < 3; i++) { //转换物体朝向到世界空间 Vector3 worldSpace = transform.TransformDirection(_sides[i]); // 测试哪面的y值更高 测正方向的面 1(+) 2(+) 3(+) if(worldSpace.y > maxY) { result = i+1; maxY = worldSpace.y; } // 测试反方向的面 6(-) 5(-) 4(-) if(-worldSpace.y > maxY) { result = 6-i; maxY=-worldSpace.y; } } return result; }// 查看色子是否停止滚动，使rigidbody睡眠，即暂停private bool IsAtRest(){ _isSleeping = rigidbody.IsSleeping(); return _isSleeping;}#endregion#region "Unity Called Methods/Events"private void Start (){ // 以随机的方法投掷色子 rigidbody.AddRelativeTorque(Vector3.up * ((UnityEngine.Random.value * 20) + 10)); rigidbody.AddRelativeTorque(Vector3.forward * ((UnityEngine.Random.value * 20) + 10)); rigidbody.AddRelativeTorque(Vector3.right * ((UnityEngine.Random.value * 20) + 10)); rigidbody.AddRelativeForce(Vector3.up * ((UnityEngine.Random.value * 120) + 30)); rigidbody.AddRelativeForce(Vector3.left * ((UnityEngine.Random.value * 170) + 30));}private void Update (){ // 仅仅投掷得到结果1次 if(!_isSleeping) { if(IsAtRest()) { if(RollComplete != null) RollComplete(this,WhichIsUp()); } }}#endregion} ?