Unity3D学习：射箭打靶游戏

这次做一个有点类似飞碟射击的游戏，射箭游戏

规则：靶有五环，射中不同的靶会相应加不同的分数（从红心到最外环分别加100,70,50,40,30,20），射出靶外会扣分200，中靶10次会有一次神箭效果（蓄满了能量），神箭中靶会相应加十倍分数而且会有特效，鼠标移动弓，而且每3秒变换一次风向，风向只有东风和西方，影响箭的飞向，所以要有预判能力。

先上效果图：

游戏架构跟飞碟的差不多，如下：

接下来讲讲靶和箭的制作：

靶的制作方法是用一个空物体装六个圆柱体，越内环越厚，半径越小，越外环越薄，半径越大（如图），这是组合模式，然后只在根物体上加刚体，C0到C5不加刚体但加网格碰撞器

就这样一个靶就形成了。

接下来是箭：

也是组合模式：根物体加刚体和网格碰撞器就行，子物体都不用加，body是圆柱体，箭头我用两个方块做

是不是看起来也挺疼的~~~

还有弓的模型我是在商店下载的，再直接拿来做预设

讲讲实现细节：弓跟着鼠标位置移动，只需要不断刷新弓的位置就行，射箭出去的实现跟射飞碟差不多，然后箭怎么停留在靶上呢？有一个技巧，可以用触发器把箭的刚体去掉，这样箭就会停留在靶上，至于神箭特效，就是简单加个爆炸粒子而已。看起来挺帅，是不是实现挺简单的？

接下来上代码：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class Director : System.Object
{private static Director _instance;public SceneController _Controller { get; set; }public static Director getinstance(){if (_instance == null){_instance = new Director();}return _instance;}public int getFPS(){return Application.targetFrameRate;}public void setFPS(int fps){Application.targetFrameRate = fps;}
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class Recorder : MonoBehaviour {private int _score = 0;void Start() {}public void AddScore(string _circle,bool full)//根据环的名字加相应分数，full判断是否神箭{Debug.Log(full);if (_circle == "C0") {if (full) _score += 1000;else _score += 100;}else if (_circle == "C1") {if (full) _score += 700;else _score += 70;}else if (_circle == "C2") {if (full) _score += 500;else _score += 50;}else if (_circle == "C3") {if (full) _score += 400;else _score += 40;}else if (_circle == "C4") {if (full) _score += 300;else _score += 30;}else if (_circle == "C5") {if (full) _score += 200;else _score += 20;}else if (_circle == "Plane") _score -= 200;}public int getScore() { return _score; }void Update () {}
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;public class UserFace : MonoBehaviour {private SceneController _Controller;public Camera _camera;public Text Score;public Text WindForce;public Text WindDir;public Text energy;private float tempwind;private GameObject bow;public Vector3 bowpos;void Start () {_Controller = (SceneController)FindObjectOfType(typeof(SceneController));bow = Instantiate(Resources.Load("Prefabs/Bow")) as GameObject;}void Update () {bowpos = new Vector3(Input.mousePosition.x - 473, Input.mousePosition.y - 300, -7);//不断刷新弓的位置bow.transform.position = bowpos;tempwind = _Controller.getActionManager().getWingForce();//获取风力然后显示风向以及力度if (tempwind>0f){WindDir.text = "WindDirection:EAST";WindForce.text = "WindForce:" + tempwind;} else if(tempwind<0f){tempwind = -tempwind;WindDir.text = "WindDirection:WEST";WindForce.text = "WindForce:" + tempwind;} else{WindForce.text = "WindForce:" + tempwind;WindDir.text = "WindDirection:NoWind";}if (Input.GetMouseButtonDown(0)){Ray mouseRay = _camera.ScreenPointToRay(Input.mousePosition);_Controller.shootArrow(mouseRay.direction,bowpos); }Score.text = "Score:" + _Controller.getRecorder().getScore();energy.text = "Energy:" + _Controller.goalcount*10 + "%";}
}

箭工厂跟飞碟工厂差不多

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class ArrowFactory : MonoBehaviour {public List<GameObject> Using; //储存使用中的箭矢  public List<GameObject> Used; //储存空闲箭矢  private GameObject arrowPrefab;void Start () {arrowPrefab = Instantiate(Resources.Load("Prefabs/arrow")) as GameObject;Using = new List<GameObject>();Used = new List<GameObject>();}public GameObject getArrow(){GameObject t;if (Used.Count == 0){t = GameObject.Instantiate(arrowPrefab);t.SetActive(true);}else{t = Used[0];t.SetActive(true);Used.Remove(t);if (t.GetComponent<Rigidbody>() == null)t.AddComponent<Rigidbody>();Component[] comp = t.GetComponentsInChildren<CapsuleCollider>();foreach (CapsuleCollider i in comp){i.enabled = true;}t.GetComponent<MeshCollider>().isTrigger = true;}Using.Add(t);return t;}private void freeArrow(){for (int i = 0; i < Using.Count; i++){GameObject t = Using[i];if (!t.activeInHierarchy){Using.RemoveAt(i);Used.Add(t);}}}void Update () {freeArrow();}
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class ArrowModule : MonoBehaviour {private string circle="";private float _time = 8f;private SceneController _Controller;public ParticleSystem _exposion;void OnTriggerEnter(Collider other){if(circle==""){circle = other.gameObject.name;Debug.Log(circle);if(circle!="Plane"){if(_Controller.goalcount==10)//是神箭{_Controller.goalcount = 0;_Controller.energyflag = true;_exposion.transform.position = other.transform.position;_exposion.Play();//播放神箭特效} else_Controller.goalcount++;}Destroy(GetComponent<Rigidbody>());Component[] comp = GetComponentsInChildren<CapsuleCollider>();//把箭的碰撞器取消以免与其他箭碰撞foreach (CapsuleCollider i in comp){i.enabled = false;}GetComponent<MeshCollider>().isTrigger = false;//防止箭再次触发_Controller.getRecorder().AddScore(circle, _Controller.energyflag);_Controller.energyflag = false;}}void Start () {_Controller = (SceneController)FindObjectOfType(typeof(SceneController));_exposion = GameObject.Instantiate(_exposion) as ParticleSystem;}void Update () {if (_time > 0) _time -= Time.deltaTime;else if(_time<=0){this.gameObject.SetActive(false);_time = 8f;circle = "";}}
}

SceneController以及动作管理器和飞碟的比较相似

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class SceneController : MonoBehaviour {private ActionManager _Manager;private Recorder _Recorder;private ArrowFactory _Factory;public bool energyflag = false;public int goalcount=0;void Start(){Director _director = Director.getinstance();_director._Controller = this;_Manager = (ActionManager)FindObjectOfType(typeof(ActionManager));_Recorder = (Recorder)FindObjectOfType(typeof(Recorder));_Factory = (ArrowFactory)FindObjectOfType(typeof(ArrowFactory));_director.setFPS(60);_director._Controller = this;}public ArrowFactory getFactory(){return _Factory;}public Recorder getRecorder(){return _Recorder;}public ActionManager getActionManager(){return _Manager;}public void shootArrow(Vector3 dir,Vector3 bowpos){GameObject arrow = _Factory.getArrow(); arrow.transform.position = bowpos;_Manager.shoot(arrow, dir); }void Update () {}
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class ActionManager : MonoBehaviour {private SceneController _Controller;float _windforce = 0f;float _speed = 40f;private bool ischangewind = true;float _time = 3f;void Start () {_Controller = (SceneController)FindObjectOfType(typeof(SceneController));}public void shoot(GameObject _arrow,Vector3 _dir){_arrow.transform.up = _dir;_arrow.GetComponent<Rigidbody>().velocity = _dir * _speed;}public void WindSystem()    //风力系统，每3秒变一次{for(int i=0;i< _Controller.getFactory().Using.Count;i++){if(_Controller.getFactory().Using[i].activeInHierarchy&& _Controller.getFactory().Using[i].GetComponent<Rigidbody>()){_Controller.getFactory().Using[i].GetComponent<Rigidbody>().AddForce(new Vector3(_windforce, 0, 0), ForceMode.Force);}}}public float getWingForce() { return _windforce; }private void setForce(){if(ischangewind){_windforce = Random.Range(-30f, 30f);ischangewind = false;}}void Update () {if (_time > 0) _time -= Time.deltaTime;else if(_time<=0){ischangewind = true;_time = 3f;}WindSystem();setForce();}
}

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