簡單打飛碟小游戲

游戲規則與要求

• 規則
  鼠標點擊飛碟，即可獲得分數，不同飛碟分數不一樣，飛碟的初始位置與飛行速度隨機，隨著分數增加，游戲難度增加。初始時每個玩家都有6條生命，漏打飛碟扣除一條生命，直到生命為0游戲結束。

• 要求：
  使用帶緩存的工廠模式管理不同飛碟的生產與回收，該工廠必須是場景單實例的！具體實現見參考資源 Singleton 模板類
  近可能使用前面 MVC 結構實現人機交互與游戲模型分離
  擴展：

  實現：

  • 第一階段做的井字棋還是能了解透徹的，Homework2的MVC架構和Homework3里的動作分離管理開始吃力了，說實話，現在對動作分離管理還不怎么理解透，但還是能理解MVC了。所以這次作業我并沒有用到動作分離管理，只是用了MVC架構，也只是簡單的MVC，所以沒有SSDirector類了，當然，還有這周要求的工廠模式也是有的。

  • 之前兩次作業看了不少博客，感覺類與類之間的交叉很多，雖然有了MVC和動作管理，但我看得結構不是很清晰（好吧，可能是我能力的問題）。這次我學會了兩個很基礎但很好用的兩個方法（原諒我到了現在才會。。。）——對象gameObject（注意g是小寫不是大寫）和GetComponent<>()，之前我一直想著用C++里面的方法實現封裝，即該方法或動作是屬于哪個類的就放在它里面，一個類不要去操作另一個類，可以通過函數調用。講一下gameObject和GetComponent吧

    • GetComponent：先說這個比較好，我們創建每個游戲對象都是用GameObject的了，但不同對象有不同的方法和屬性，所以就可以自己寫腳本掛到物體上，讓它實現你想要的方法。當然，通過這個方法也可以添加其它組件比如Rigibody 。
    • gameObject：這是GameObject的實例，但它是ReadOnly即只讀，它有什么用呢，當你把一個組件（這里重點指的是腳本），怎么獲得該腳本掛的物體呢，其實是有記錄的，gameObject就是腳本當前掛的物體。

  下面講下本實驗的過程：

  成品圖：
  
  做的確實不好。。。
  玩法：每按一次空格能出來一個飛碟，然后點擊鼠標去點它，點中了會消失，或者飛離一定距離也會消失。

代碼：

功能少所以代碼比較少。

• GameModel類即disk的屬性與方法：

using System.Collections; using System.Collections.Generic; using UnityEngine; public class GameModel : MonoBehaviour{ static int count = 0; public Color diskColor; private Vector3 emitPosition; private Vector3 emitDirection; private float emitSpeed; private bool is_used; private int diskScale; private int id; public GameModel() { id = 0; count++; } public int getID() { return id; } public void setColor(Color diskColor) { this.GetComponent<MeshRenderer>().material.color = diskColor; } public void setEmitPosition(Vector3 emitPosition_) { emitPosition = emitPosition_; this.transform.position = emitPosition_; } public void setEmitDirection(Vector3 emitDirection_) { emitDirection = emitDirection_; gameObject.GetComponent<Rigidbody>().AddForce(3000 * emitDirection_); } public void setState(bool state) { is_used = state; gameObject.SetActive(is_used); } public bool getState() { return is_used; } public bool is_outOfEdge() { if(transform.position.z>150 || transform.position.z<-150 || transform.position.x < -50 || transform.position.x >50 || transform.position.y>10 || transform.position.y < -20) { return true; } else { return false; } } }

• DiskFactory類

using System.Collections; using System.Collections.Generic; using UnityEngine;public class DiskFactory{private static DiskFactory _instance;private static List<GameObject> unusedDiskList = new List<GameObject>();private static List<GameObject> usedDiskList = new List<GameObject>();public GameObject diskTemplate;public static DiskFactory getInstance(){if(_instance == null){_instance = new DiskFactory();}return _instance;}private DiskFactory() { }public GameObject getDiskObject(){GameObject disk1;if (unusedDiskList.Count == 0){disk1 = GameObject.Instantiate(diskTemplate) as GameObject;usedDiskList.Add(disk1);}else{disk1 = unusedDiskList[0];unusedDiskList.RemoveAt(0);usedDiskList.Add(disk1);}disk1.GetComponent<GameModel>().setState(true);return disk1;}public void removeDiskObject(GameObject obj){if (usedDiskList.Count > 0){GameObject disk1 = obj;disk1.GetComponent<Rigidbody>().velocity = Vector3.zero;disk1.GetComponent<GameModel>().setState(false);usedDiskList.Remove(obj); unusedDiskList.Add(disk1);}}//返回出界的disk的數目public int updateList(){int count = 0;for(int i = 0; i < usedDiskList.Count; i++){if(usedDiskList[i].GetComponent<GameModel>().is_outOfEdge()){removeDiskObject(usedDiskList[i]);count++;}}return count;}public void clear(){usedDiskList.Clear();unusedDiskList.Clear();} }public class DiskFactoryBC : MonoBehaviour {public GameObject disk;private void Awake(){DiskFactory.getInstance().diskTemplate = disk;} }

• 記分員類scoreRecorder：

using System.Collections; using System.Collections.Generic; using UnityEngine;public class ScoreRecorder {private int score;public ScoreRecorder(){score = 0;}public void addScore(int add){score+=add;}public void subScore(int sub){score=score-sub;}public int getScore(){return score;}public void resetScore(){score = 0;} }

• SceneController類：

using System.Collections; using System.Collections.Generic; using UnityEngine; public enum GameState { BEFORESTART,ROUND1,ROUND2,END}; public class SceneController : MonoBehaviour{private static SceneController _instance;private DiskFactory diskFactory= DiskFactory.getInstance();private GameObject disk;private GameState gamestate = GameState.BEFORESTART;private ScoreRecorder scoreRecorder = new ScoreRecorder();private int cout=0;private float time = 0;public static SceneController getInstance(){if(_instance == null){_instance = new SceneController();}return _instance;}void Awake () {_instance = this;_instance.gamestate = GameState.END;}// Update is called once per framevoid Update () {int count =diskFactory.updateList();scoreRecorder.subScore(count);}public void emitDisk(){if (gamestate == GameState.BEFORESTART){}else if (gamestate == GameState.ROUND1){disk = diskFactory.getDiskObject();float x = Random.Range(0.1f, 1);float y = Random.Range(-1, 1)/10;float z = Random.Range(0.1f, 1);disk.GetComponent<GameModel>().setColor(selectColor());disk.GetComponent<GameModel>().setEmitPosition(new Vector3(-8, 0, 5));disk.GetComponent<GameModel>().setEmitDirection(new Vector3(x, y, z));}else if(gamestate == GameState.ROUND2){disk = diskFactory.getDiskObject();float x = Random.Range(-0.8f, 1);float y = Random.Range(-1, 1) / 10;float z = Random.Range(0.1f, 1);disk.GetComponent<GameModel>().setColor(selectColor());disk.GetComponent<GameModel>().setEmitPosition(new Vector3(-8, 0, 5));disk.GetComponent<GameModel>().setEmitDirection(new Vector3(x, y, z));}else if (gamestate == GameState.END){diskFactory.clear();scoreRecorder.resetScore();//print(cout);}}public void destroyDisk(GameObject obj){if(gamestate == GameState.ROUND1){diskFactory.removeDiskObject(obj);scoreRecorder.addScore(1);} }public void setGameState(GameState state){gamestate = state;}public GameState getGameState(){return gamestate;}public int getScore(){return scoreRecorder.getScore();}private Color selectColor(){int randomNumber = Random.Range(0, 5);Color color=Color.green;switch (randomNumber){case 0:color = Color.red;break;case 1:color = Color.blue;break;case 2: color = Color.green;break;case 3: color = Color.yellow;break;case 4: color = Color.grey;break;}return color;}public int getRound(){int round=0;switch (gamestate){case GameState.ROUND1:round = 1;break;case GameState.ROUND2:round = 2;break;}return round;}}

• UI類：

using System.Collections; using System.Collections.Generic; using UnityEngine;public class UI : MonoBehaviour {private SceneController sceneController = SceneController.getInstance();// Use this for initializationvoid Start () {}private void Update(){if (Input.GetKeyDown("space")){sceneController.emitDisk();}if (Input.GetMouseButtonDown(0)){Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);RaycastHit hit;if(Physics.Raycast(ray,out hit)){if(hit.transform.tag == "Disk"){sceneController.destroyDisk(hit.collider.gameObject);}}}}private void OnGUI(){GUIStyle fontStyle = new GUIStyle();fontStyle.fontSize = 25;fontStyle.normal.textColor = new Color(0, 0, 0);if (GUI.Button(new Rect(0, 0, 100, 40), "Round1")){sceneController.setGameState(GameState.ROUND1);}else if(GUI.Button(new Rect(0, 42, 100, 40), "Round2")){sceneController.setGameState(GameState.ROUND2);}else if(GUI.Button(new Rect(0, 84, 100, 40), "End")){sceneController.setGameState(GameState.END);}GUI.Label(new Rect(Screen.width / 3, 0, 100, 50), "Round: " + sceneController.getRound(), fontStyle);GUI.Label(new Rect(Screen.width/3+150 , 0, 100, 50), "Score: " + sceneController.getScore(), fontStyle);if (sceneController.getGameState() == GameState.END){if(GUI.Button(new Rect(Screen.width / 3, Screen.height / 3, 150, 80), "GameOver!\nEnter")){sceneController.setGameState(GameState.BEFORESTART);}}} }

小結：

• 我只是將自己學到的一點東西分享一下，可參考度不高，如果要參考建議還是看大神寫的博客，我還有很多很多要改要學習要改進的地方，希望自己后面能學得更好
  （實訓+3d+現操+計組已經夠忙的了，每天都能看到深夜的月亮。。。）

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