前言
随机功能和UnityEvent前面其实我们都已经做过了，但是随机+UnityEvent事件要怎么使用呢？这里就来举一个例子说明。
当然对之前随机功能和UnityEvent事件感兴趣的小伙伴也可以去看看，这里我贴出地址
- 随机功能：
- UnityEvent事件：适用于任何 2d 游戏的钥匙门系统和buff系统——UnityEvent的使用
ps：本篇为自己的学习记录，希望对你有帮助
开始
一、简单的使用
新增ChestInteractableEvents，定义宝箱交互事件
[System.Serializable] public class ChestInteractableEvents { [Header("宝箱事件名称")] public string EventName; [Range(0f, 1f), Header("掉落几率")] public float DropChance = 0.5f; [Header("宝箱交互事件")] public UnityEvent ChestInteractionEvent; }
新增Box
public class Box : MonoBehaviour { [Header("宝箱交互事件数组")] [SerializeField] private ChestInteractableEvents[] _chestInteractionEvents; //测试执行 private void Update() { if (Input.GetKeyDown(KeyCode.Space)) { DetermineAndFireChestEvent(); } } private void DetermineAndFireChestEvent() { // 计算总的掉落几率 float totalChance = 0f; foreach (ChestInteractableEvents interactableEvents in _chestInteractionEvents) totalChance += interactableEvents.DropChance; float rand = Random.Range(0f, totalChance); // 生成一个随机数，范围是0到总掉落几率 float cumulativeChance = 0f; foreach (ChestInteractableEvents interactableEvents in _chestInteractionEvents) { cumulativeChance += interactableEvents.DropChance; if (rand < cumulativeChance) { interactableEvents.ChestInteractionEvent.Invoke(); // 触发宝箱交互事件 return; } } } // 生成金币 public void SpawnCoins() { Debug.Log("生成了一个金币"); } // 生成敌人 public void SpawnEnemies() { Debug.Log("生成了敌人"); } // 生成生命药水 public void SpawnHealthPotion() { Debug.Log("生成了一个生命药水"); } }
箱子挂载脚本，配置事件
运行效果
二、完善各种事件
1. 完善生成金币事件
[Header("生成金币")] [SerializeField] private Rigidbody2D _coinToSpawn; // 要生成的金币刚体 [SerializeField] private int _numberofCoinsTospawn = 100; // 要生成的金币数量 [SerializeField] private float _explosionForce = 10f; // 金币爆炸力度 [SerializeField, Range(0f, 0.5f)] private float _explosionArc = 0.5f; // 金币爆炸角度范围 [SerializeField] private bool _delayBetweenspawns = false; // 是否延迟生成金币 [SerializeField] private Transform _spawnTransform; // 生成金币的位置 /// <summary> /// 生成金币 /// </summary> public void SpawnCoins() { if (!_delayBetweenspawns) { // 直接生成金币 for (int i = 0; i < _numberofCoinsTospawn; i++) { Rigidbody2D coinRB = Instantiate(_coinToSpawn, _spawnTransform.position, Quaternion.identity); Explosion(coinRB); } } else { // 延迟生成金币 StartCoroutine(SpawnCoinsWithDelay()); } } /// <summary> /// 延迟生成金币 /// </summary> /// <returns></returns> private IEnumerator SpawnCoinsWithDelay() { for (int i = 0; i < _numberofCoinsTospawn; i++) { Rigidbody2D coinRB = Instantiate(_coinToSpawn, _spawnTransform.position, Quaternion.identity); Explosion(coinRB); yield return null; } } /// <summary> /// 金币爆炸效果 /// </summary> /// <param name="rb"></param> private void Explosion(Rigidbody2D rb) { Vector2 randDir = new Vector2(Random.Range(-_explosionArc, _explosionArc), 1f); Vector2 force = randDir.normalized * _explosionForce; rb.AddForce(force, ForceMode2D.Impulse); }
效果，金币飞出
2. 完善生成敌人事件敌人
[Header("生成敌人")] [SerializeField] private GameObject[] _enemiesToSpawn; // 要生成的敌人数组 [SerializeField] private GameObject _enemySpawnParticles; // 敌人生成时的粒子效果 [SerializeField] private int _numofEnemiesToSpawn = 3; // 要生成的敌人数量 [SerializeField, Range(0f, 15f)] private float _enemySpawnoffset = 2f; // 敌人生成的偏移距离 /// <summary> /// 生成敌人 /// </summary> public void SpawnEnemies() { for (int i = 0; i < _numofEnemiesToSpawn; i++) { int randIndex = Random.Range(0, _enemiesToSpawn.Length); float randX = Random.Range(-_enemySpawnoffset, _enemySpawnoffset); float randY = Random.Range(-_enemySpawnoffset, _enemySpawnoffset); Vector2 spawnPos = ((Vector2)_spawnTransform.position + new Vector2(randX, randY)).normalized; GameObject enemy = Instantiate(_enemiesToSpawn[randIndex], spawnPos, Quaternion.identity); //生成粒子效果 GameObject enemySpawnParticles = Instantiate(_enemySpawnParticles, spawnPos, Quaternion.identity); //粒子效果和敌人大小一致 enemySpawnParticles.transform.localScale = enemy.transform.localScale; } }
效果
3. 完善生成药水事件
[Header("生成生命药水")] [SerializeField] private Rigidbody2D _healthPotionToSpawn; // 要生成的生命药水刚体 [SerializeField] private float _upwardForce = 5f; // 生命药水向上的力度 /// <summary> /// 生成生命药水 /// </summary> public void SpawnHealthPotion() { Rigidbody2D rb = Instantiate(_healthPotionToSpawn, _spawnTransform.position, Quaternion.identity); Vector2 force = Vector2.up * _upwardForce; rb.AddForce(force, ForceMode2D.Impulse); }
效果
最终效果
参考
【视频】https://www.youtube.com/watch?v=UeTlJyBz7h8
源码
https://gitcode.net/unity1/unity-randomevent
