unity實(shí)現(xiàn)鼠標(biāo)打飛碟（Hit UFO）游戲

游戲規(guī)則及要求

規(guī)則：玩家初始有5條生命，每漏過(guò)一個(gè)飛碟，生命減一。游戲分?jǐn)?shù)的增加與命中飛碟時(shí)的位置有關(guān)，越早擊中飛碟分?jǐn)?shù)越高。游戲有四檔難度，隨分?jǐn)?shù)遞增。
要求：

• 使用帶緩存的工廠模式管理不同飛碟的生產(chǎn)與回收，該工廠必須是場(chǎng)景單實(shí)例的！具體實(shí)現(xiàn)見參考資源 Singleton 模板類
• 近可能使用前面 MVC 結(jié)構(gòu)實(shí)現(xiàn)人機(jī)交互與游戲模型分離

UML類圖

代碼框架

基本沿用了牧師與魔鬼的框架，主要增加了場(chǎng)景單實(shí)例和飛碟工廠類。

代碼分析

與牧師與魔鬼2.0版本類似，將所有動(dòng)作管理類合并成一個(gè)C#文件。許多類與之前的代碼類似，主要說(shuō)明不同的部分。

• CCMoveToAction（管理飛碟飛行的動(dòng)作）

public class CCMoveToAction : SSAction {public float Power = 10;//這個(gè)代表發(fā)射時(shí)的速度public float Angle = 45;//發(fā)射的角度public float Gravity = -10;//重力加速度private Vector3 MoveSpeed;//初速度private Vector3 GritySpeed = Vector3.zero;//重力的速度向量，t時(shí)為0private float dTime;//已經(jīng)過(guò)去的時(shí)間private Vector3 currentAngle;public DiskFactory diskfactory;public UserGUI User;public static CCMoveToAction GetSSAction(float Power,float Angle,float Gravity,Vector3 MoveSpeed){CCMoveToAction action = ScriptableObject.CreateInstance<CCMoveToAction>();action.Power = Power;action.Angle = Angle;action.Gravity = Gravity;action.MoveSpeed = MoveSpeed;return action;}public override void Update(){GritySpeed.y = Gravity * (dTime += Time.fixedDeltaTime);transform.position += (MoveSpeed + GritySpeed) * Time.fixedDeltaTime;currentAngle.z = Mathf.Atan((MoveSpeed.y + GritySpeed.y) / MoveSpeed.x) * Mathf.Rad2Deg;transform.eulerAngles = currentAngle;if(this.transform.position.y < -7 || this.transform.position.x > 10){if(this.transform.position.x > 0 && User.HP > 0) User.HP--;diskfactory.FreeDisk(this.gameobject);this.destroy = true;this.callback.SSActionEvent(this);}}public override void Start(){//User = gameObject.AddComponent<UserGUI>() as UserGUI;MoveSpeed = Quaternion.Euler(new Vector3(0, 0, Angle)) * Vector3.right * Power;currentAngle = Vector3.zero;diskfactory = Singleton<DiskFactory>.Instance;User = Singleton<UserGUI>.Instance;} }

按照飛碟的初始速度、所受到的重力、初始角度，控制飛碟飛行動(dòng)作。當(dāng)飛碟飛出屏幕時(shí)，表示飛碟飛行動(dòng)作已做完，回收飛碟。

• MySceneActionManager（飛碟的動(dòng)作管理類，通過(guò)調(diào)用該類中的方法使得飛碟飛行）

public class MySceneActionManager : SSActionManager {private CCMoveToAction diskfly;public Controll sceneController;protected new void Start(){sceneController = (Controll)SSDirector.GetInstance().CurrentScenceController;sceneController.actionManager = this;}public void fly_disk(Disk disk){diskfly = CCMoveToAction.GetSSAction(disk.Power,disk.Angle,disk.Gravity,disk.MoveSpeed);this.RunAction(disk.getGameObject(), diskfly, this);} }

• Singleton（場(chǎng)景單實(shí)例，可以為每個(gè) MonoBehaviour子類創(chuàng)建一個(gè)對(duì)象的實(shí)例）

public class Singleton<T> : MonoBehaviour where T : MonoBehaviour {protected static T instance;public static T Instance{get{if (instance == null){instance = (T)FindObjectOfType(typeof(T));if (instance == null){Debug.LogError("An instance of " + typeof(T)+ " is needed in the scene, but there is none.");}}return instance;}} }

場(chǎng)景單實(shí)例的使用很簡(jiǎn)單，僅需要將 MonoBehaviour 子類對(duì)象掛載任何一個(gè)游戲?qū)ο笊霞纯伞Ｈ缓笤谌我馕恢檬褂么a Singleton< YourMonoType >.Instance 獲得該對(duì)象。

• DiskFactory
  飛碟工廠類，控制飛碟的產(chǎn)生和回收，當(dāng)場(chǎng)景控制器需要飛碟時(shí)，
  飛碟工廠從空閑飛碟列表中尋找飛碟傳遞給場(chǎng)景控制器，若空閑列表中無(wú)飛碟，則飛碟工廠需要產(chǎn)生一個(gè)新的飛碟。當(dāng)飛碟飛出屏幕或被打擊后，會(huì)調(diào)用飛碟工廠回收飛碟的方法。通過(guò)工廠類，可以管理不同飛碟的發(fā)送和回收

using System.Collections; using System.Collections.Generic; using UnityEngine;public class DiskFactory : MonoBehaviour {//public Disk disk_prefab = null; //飛碟預(yù)制體public List<Disk> used = new List<Disk>(); //正在被使用的飛碟列表public List<Disk> free = new List<Disk>(); //空閑的飛碟列表public Disk GetDisk(){Disk disk_prefab = null;int rand = Random.Range(0, 99);if (free.Count > 10){disk_prefab = free[0];disk_prefab.getGameObject().SetActive(true);//disk_prefab.getGameObject().transform.position = new Vector3(-10,0,0);free.Remove(free[0]);}else {if (rand % 4 == 0){disk_prefab = new Disk("disk1");}else if(rand % 4 == 1){disk_prefab = new Disk("disk2");}else if(rand % 4 == 2){disk_prefab = new Disk("disk3");}else{disk_prefab = new Disk("disk4");}}used.Add(disk_prefab);return disk_prefab;}//回收飛碟public void ResetDisk(Disk disk){disk.Power = 0;disk.Angle = 0;disk.Gravity = 0;}public void FreeDisk(GameObject disk){for(int i = 0;i < used.Count; i++){if (disk.GetInstanceID() == used[i].getGameObject().GetInstanceID()){ResetDisk(used[i]);used[i].getGameObject().SetActive(false);free.Add(used[i]);used.Remove(used[i]);break;}}} }

• Disk（飛碟類）
  定義了飛碟所擁有的各項(xiàng)屬性，包括受到的力度、飛行角度、所受重力和移動(dòng)速度。

public class Disk{public GameObject disk; //射擊此飛碟得分public float Power = 3;public float Angle = 15;public float Gravity = -0.5f;public Vector3 MoveSpeed;public Disk(string name){if(name == "disk1"){disk = Object.Instantiate(Resources.Load("disk1", typeof(GameObject)), new Vector3(-10,0,0), Quaternion.Euler(0, -90, 0)) as GameObject;}else if(name == "disk2"){disk = Object.Instantiate(Resources.Load("disk2", typeof(GameObject)), new Vector3(-10,0,0), Quaternion.Euler(0, -90, 0)) as GameObject;}else if(name == "disk3"){disk = Object.Instantiate(Resources.Load("disk3", typeof(GameObject)), new Vector3(-10,0,0), Quaternion.Euler(0, -90, 0)) as GameObject;}else if(name == "disk4"){disk = Object.Instantiate(Resources.Load("disk4", typeof(GameObject)), new Vector3(-10,0,0), Quaternion.Euler(0, -90, 0)) as GameObject;}}public GameObject getGameObject() { return disk; }}

• Controll 場(chǎng)景控制器
  場(chǎng)景控制器通過(guò)設(shè)置游戲狀態(tài)和游戲所進(jìn)行的輪數(shù)從而控制飛碟的發(fā)送頻率、一次發(fā)送所發(fā)送飛碟的個(gè)數(shù)和飛碟的屬性。游戲每達(dá)到10分難度就會(huì)提升一檔，總共有四檔難度，飛碟的發(fā)送頻率、速度、角度的變化幅度、發(fā)送位置的變化幅度都會(huì)隨著難度的提升而提升。當(dāng)游戲進(jìn)入第四檔時(shí)，則會(huì)一次發(fā)送兩個(gè)飛碟。
  通過(guò)射線來(lái)判斷飛碟是否被擊中，若擊中飛碟，則得分增加，否則若飛碟飛出屏幕，則生命會(huì)減少。

using System.Collections; using System.Collections.Generic; using UnityEngine; public class Controll : MonoBehaviour,ISceneController,IUserAction {private int gamestate = 0; // 0 游戲未開始，1 游戲進(jìn)行 ,2 游戲開始private int round = 1;private int score = 0;private float time = 2f;private float i = 0;public UserGUI User;public MySceneActionManager actionManager;//public Disk disk;public DiskFactory diskfactory;void Start(){SSDirector director = SSDirector.GetInstance();director.CurrentScenceController = this;User = gameObject.AddComponent<UserGUI>() as UserGUI;diskfactory = Singleton<DiskFactory>.Instance;actionManager = gameObject.AddComponent<MySceneActionManager>() as MySceneActionManager;//LoadResources();}void Update(){if (gamestate == 2){gamestate = 1;}if (gamestate == 1){if (i >= time){ if (score > 10 && round == 1){time -= 0.3f;round = 2;}else if(score > 20 && round == 2){time -= 0.5f;round = 3;}else if(score > 30 && round == 3){time += 0.3f;round = 4;}SendDisk();i = 0;}i += Time.deltaTime;}}public void LoadResources(){}public void SendDisk(){Disk disk = diskfactory.GetDisk();if (round == 1){disk.Power = Random.Range(2.5f, 3.5f);disk.Angle = Random.Range(10f, 30f);disk.Gravity = Random.Range(-0.5f, -0.8f);disk.disk.transform.position = new Vector3(-10,Random.Range(-3f, 2f),0);}else if (round == 2){disk.Power = Random.Range(3.5f, 5f);disk.Angle = Random.Range(5f, 35f);disk.Gravity = Random.Range(-0.6f, -1f);disk.disk.transform.position = new Vector3(-10,Random.Range(-4f, 1f),0);}else if (round == 3){disk.Power = Random.Range(5.5f, 8f);disk.Angle = Random.Range(5f, 35f);disk.Gravity = Random.Range(-1f, -1.5f);disk.disk.transform.position = new Vector3(-10,Random.Range(-5f, 3f),0);}else if (round == 4){disk.Power = Random.Range(7f, 10f);disk.Angle = Random.Range(5f, 35f);disk.Gravity = Random.Range(-2f, -2.5f);disk.disk.transform.position = new Vector3(-10,Random.Range(-5f, 2f),0);Disk disk2 = diskfactory.GetDisk();disk2.Power = Random.Range(6f, 8f);disk2.Angle = Random.Range(5f, 35f);disk2.Gravity = Random.Range(-1f, -3f);disk2.disk.transform.position = new Vector3(-10,Random.Range(-4.5f, 1f),0);actionManager.fly_disk(disk2);}actionManager.fly_disk(disk);}public void Restart(){score = 0;gamestate = 2;}public void Stopgame(){gamestate = 0;round = 1;time = 2f;}public void Startgame(){gamestate = 2;}public bool Hit(){Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);RaycastHit hit;if (Physics.Raycast(ray, out hit)) {if(hit.collider.gameObject.transform.position.x < 3 && gamestate > 0)score+=2;else if(hit.collider.gameObject.transform.position.x >= 3 && gamestate > 0) score+=1;hit.collider.gameObject.transform.position = new Vector3(-10, -11, 0);diskfactory.FreeDisk(hit.collider.gameObject);return true;}return false;}public int Getscore(){return score;} }

• UserGui （用戶界面）

using System.Collections; using System.Collections.Generic; using UnityEngine;public class UserGUI : MonoBehaviour {private IUserAction action;private bool gamestart = false;public int HP = 5;void Start(){action = SSDirector.GetInstance().CurrentScenceController as IUserAction;}void OnGUI(){ GUIStyle fontStyle2 = new GUIStyle();fontStyle2.fontSize = 20;fontStyle2.normal.textColor= new Color(1, 1, 1);GUIStyle fontStyle1 = new GUIStyle();fontStyle1.fontSize = 20;if(GUI.Button (new Rect (Screen.width-100, Screen.height-100, 65, 65), "Exit")){Application.Quit();}if(gamestart == false){GUI.Label(new Rect(Screen.width / 2 - 300, 100, 420, 50), "游戲目標(biāo)：盡可能的射擊多的飛碟", fontStyle2);GUI.Label(new Rect(Screen.width / 2 - 300, 150, 420, 50), "游戲難度會(huì)逐漸提升，祝君好運(yùn)!", fontStyle2);if (GUI.Button(new Rect(Screen.width / 2 - 40, Screen.height-200, 70, 40), "start")){action.Startgame();gamestart = true;}}else{GUI.Label(new Rect(Screen.width / 2 - 300, 10, 420, 50), "分?jǐn)?shù):", fontStyle1);GUI.Label(new Rect(Screen.width / 2 - 250, 10, 420, 50), action.Getscore().ToString(), fontStyle1);GUI.Label(new Rect(Screen.width / 2 - 300, 40, 420, 50), "剩余血量:", fontStyle1);GUI.Label(new Rect(Screen.width / 2 - 210, 40, 420, 50), HP.ToString(), fontStyle1);}if (Input.GetButtonDown("Fire1")) {action.Hit();}if (HP <= 0){GUI.Label(new Rect(Screen.width / 2 - 50, 150, 60, 40), "Game Over!", fontStyle1);action.Stopgame();if (GUI.Button(new Rect(Screen.width / 2 - 40, Screen.height-200, 70, 40), "Restart")){action.Restart();HP = 5;}} } }

游戲截圖

視頻鏈接
項(xiàng)目代碼

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