transform.RotateAround(pivot.position, Vector3.forward, -90);

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class Model : MonoBehaviour
{
 public const int NORMAL_ROWS = 20;//最大行數(shù)（這個(gè)也是用于判斷游戲結(jié)束邏輯）
 public const int MAX_ROWS = 23;//最大行數(shù)+3（用于判斷游戲結(jié)束邏輯）
 public const int MAX_COLUMNS = 10;//最大列數(shù)
 private Transform[,] map = new Transform[MAX_COLUMNS, MAX_ROWS];//地圖數(shù)組map
 //下面這些不用管，是UI的一些參數(shù)
 private int score = 0;
 private int highScore = 0;
 private int numbersGame = 0;
 
 public int Score { get { return score; } }
 public int HighScore { get { return highScore; } }
 public int NumbersGame { get { return numbersGame; } }
 
 public bool isDataUpdate = false;
 
 private void Awake()
 {
 LoadData();
 }
 //檢查一個(gè)方塊(如Sharp-1)的位置是否合理,參數(shù)t是方塊的Transform
 public bool IsValidMapPosition(Transform t)
 {
 foreach (Transform child in t)
 {
 //子物體帶"Block"字符的標(biāo)簽tag都是"Block"，它們就是小方塊
 if (child.tag != "Block") continue;
 //如果遍歷到的子物體是小方塊的話進(jìn)行下面的邏輯判斷
 Vector2 pos = child.position.Round();//Round是我擴(kuò)展的方法，==貼出來.
 //若不在地圖范圍內(nèi)，則不可用
 if (IsInsideMap(pos) == false) return false;
 //有其他圖形占用著，則不可用
 if (map[(int)pos.x, (int)pos.y] != null)
 {
 return false;//不可用
 }
 }
 return true;
 }
 //不在地圖范圍內(nèi)返回false,在返回true
 private bool IsInsideMap(Vector2 pos)
 {
 return pos.x >= 0 && pos.x < MAX_COLUMNS && pos.y >= 0;
 }
 /// <summary>
 /// 在方塊進(jìn)行檢查位置不合理后，會(huì)固定自身位置 放入map[,]保存小方塊Block的Transform組件
 /// </summary>
 /// <param name="t">shape的父物體transform</param>
 public bool PlaceShape(Transform t)
 {
 foreach (Transform child in t)
 {
 if (child.tag != "Block") continue;
 Vector2 pos = child.position.Round();
 map[(int)pos.x, (int)pos.y] = child;
 }
 //放進(jìn)map后需要檢查整張地圖是否需要消行
 return CheckMap();
 }
 /// <summary>
 /// 檢查地圖 是否需要消除行
 /// </summary>
 private bool CheckMap()
 {
 int count = 0;//消行數(shù)
 for (int i = 0; i < MAX_ROWS; i++)
 {
 //若第i行填滿小方塊
 if (CheckIsRowFull(i))
 {
 count++;
 DeleteRow(i);//消除第i行
 MoveDownRowsAbove(i + 1);//第i+1行及其上方的所有行向下移動(dòng)一行（從下到上移動(dòng)）
 i--; //因?yàn)樯厦娴哪且恍幸呀?jīng)移動(dòng)下來了，這里將i--,目的是為了繼續(xù)檢查上面那一行是否滿,因?yàn)閒or會(huì)將i++,這樣就抵消了i++,讓i繼續(xù)保持原樣
 }
 }
 //下面不用管，是UI部分的邏輯
 if (count > 0)
 {
 score += count * 100;
 if(score>highScore)
 {
 highScore = score;
 }
 isDataUpdate = true;
 return true;
 }
 else
 {
 return false;
 }
 
 }
 //檢查第row行是否滿
 private bool CheckIsRowFull(int row)
 {
 for (int i = 0; i < MAX_COLUMNS; i++)
 {
 if (map[i, row] == null)
 {
 return false;
 }
 }
 return true;
 }
 private void DeleteRow(int row)
 {
 for (int i = 0; i < MAX_COLUMNS; i++)
 {
 Destroy(map[i, row].gameObject);
 map[i, row] = null;
 }
 }
 //將索引row行至最上面的行都往下移動(dòng)一行(從下開始移動(dòng))
 public void MoveDownRowsAbove(int row)
 {
 for (int i = row; i < MAX_ROWS; i++)
 {
 MoveDownRow(i);
 }
 }
 //將row行 下移一行，處理了邏輯位置 和 物體位置
 private void MoveDownRow(int row)
 {
 for (int i = 0; i < MAX_COLUMNS; i++)
 {
 if (map[i, row] != null)
 {
 map[i, row - 1] = map[i, row];//這里是邏輯上的移動(dòng)
 map[i, row] = null;
 map[i, row - 1].position += new Vector3(0, -1, 0);//物理上的移動(dòng)
 }
 }
 }
 //判斷游戲結(jié)束邏輯
 public bool isGameOver()
 {
 for(int i= NORMAL_ROWS; i<MAX_ROWS;i++)
 {
 for(int j=0;j<MAX_COLUMNS;j++)
 {
 if (map[j, i] != null)
 {
  numbersGame++;
  SaveData();
  return true;
 }
 }
 }
 return false;
 }
 public void Restart()
 {
 for(int i=0;i<MAX_COLUMNS;i++)
 {
 for(int j=0;j<MAX_ROWS;j++)
 {
 if(map[i,j])
 {
  Destroy(map[i, j].gameObject);
  map[i, j] = null;
 }
 }
 }
 score = 0;
 }
 private void LoadData()
 {
 highScore= PlayerPrefs.GetInt("HighScore", 0);
 numbersGame = PlayerPrefs.GetInt("NumbersGame",0);
 }
 private void SaveData()
 {
 PlayerPrefs.SetInt("HighScore", highScore);
 PlayerPrefs.SetInt("NumbersGame", numbersGame);
 }
 public void ClearData()
 {
 score = 0;
 highScore = 0;
 numbersGame = 0;
 SaveData();
 }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class Shape : MonoBehaviour {
 
 private GameManager gameManager;
 private Ctrl ctrl;
 private bool isPause = false;
 private bool isSpeedUp = false;
 private float timer = 0;
 private float stepTime = 0.8f;//0.8s方塊下落一行
 private Transform pivot;//錨點(diǎn)(旋轉(zhuǎn)中心點(diǎn))
 private int multiple = 15; 
 
 private void Awake()
 {
 pivot = transform.Find("Pivot");
 }
 
 private void Update()
 {
 if (isPause) return;
 timer += Time.deltaTime;
 if(timer>stepTime)
 {
 timer = 0;
 Fall();
 }
 InputControl();
 }
 /// <summary>
 /// 方塊下落一行邏輯
 /// </summary>
 private void Fall()
 {
 //先嘗試將方塊下移一行
 Vector3 pos = transform.position;
 pos.y -= 1;
 transform.position = pos;
 //使用Model的方法檢查方塊位置是否合理，若不合理返回false進(jìn)入if
 if(ctrl.model.IsValidMapPosition(this.transform)==false)
 {
 pos.y += 1;//因?yàn)楫?dāng)前位置是不可用的，而上一個(gè)位置肯定是可用的，所以這里移動(dòng)回到上一個(gè)位置處
 transform.position = pos;
 isPause = true;//暫停當(dāng)前shape的下移
 bool isLineclear = ctrl.model.PlaceShape(this.transform);//使用Model的方法固定shape,即放入map數(shù)組保存小方塊信息，并且檢查地圖消除行
 if (isLineclear) ctrl.audioManager.PlayLineClear();//isLineclear是true代表消除行了，播放聲音
 gameManager.FallDown();//設(shè)置GameManager中的currentShape=null,這樣就會(huì)實(shí)例化下一個(gè)shape方塊，并且更新分?jǐn)?shù)UI
 return;
 }
 ctrl.audioManager.PlayDrop();//方塊固定的聲音
 }
 //輸入控制
 private void InputControl()
 {
 // if (isSpeedUp) return;
 float h=0;
 if(Input.GetKeyDown(KeyCode.LeftArrow))
 {
 h = -1;
 }
 else if(Input.GetKeyDown(KeyCode.RightArrow))
 {
 h = 1;
 }
 if(h!=0)
 {
 //這里和Fall下移邏輯處理手法一樣，不再闡述!
 Vector3 pos = transform.position;
 pos.x += h;
 transform.position = pos;
 if (ctrl.model.IsValidMapPosition(this.transform) == false)
 {
 pos.x -= h;
 transform.position = pos;
 }
 else
 {
 ctrl.audioManager.PlayControl();
 }
 }
 
 //按鍵盤↑對(duì)方塊進(jìn)行旋轉(zhuǎn)（即變形）
 if(Input.GetKeyDown(KeyCode.UpArrow))
 {
 //以pivot位置為旋轉(zhuǎn)中心，繞z軸旋轉(zhuǎn)-90°
 transform.RotateAround(pivot.position, Vector3.forward, -90);
 //旋轉(zhuǎn)后自然也要檢查下位置是否合理
 if (ctrl.model.IsValidMapPosition(this.transform) == false)
 {
 //不合理，旋轉(zhuǎn)90° 變回之前那樣子(注意：這個(gè)過程是瞬間發(fā)生的，玩家不會(huì)看到這個(gè)變化過程！）
 transform.RotateAround(pivot.position, Vector3.forward, 90);
 }
 else
 {
 ctrl.audioManager.PlayControl();
 }
 }
 //按鍵盤↓會(huì)進(jìn)行加速方塊下移
 if(Input.GetKeyDown(KeyCode.DownArrow))
 {
 isSpeedUp = true;
 stepTime /= multiple;
 }
 }
 public void Init(Color color,Ctrl ctrl,GameManager gameManager)
 {
 this.gameManager = gameManager;
 this.ctrl = ctrl;
 foreach(Transform t in transform)
 {
 if(t.tag=="Block")
 {
 t.GetComponent<SpriteRenderer>().color = color;
 }
 }
 }
 public void Pause()
 {
 isPause = true;
 }
 public void Resume()
 {
 isPause = false;
 }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class GameManager : MonoBehaviour {
 
 private Ctrl ctrl;
 private bool isPause = true;//是否暫停狀態(tài)
 private Shape currentShape = null;
 public Shape[] shapes;//shape prefabs
 public Color[] colors;//shape colors
 private Transform blockHolder;
 private void Awake()
 {
 ctrl = GetComponent<Ctrl>();
 blockHolder = transform.Find("BlockHolder");
 } 
 
 void Update () {
 if(isPause)
 {
 return;
 }
 //如果當(dāng)前方塊為空，生成一個(gè)方塊（這個(gè)currentShape是由Shape
 if (currentShape == null)
 {
 SpawnShape();
 }
 }
 /// <summary>
 /// 刪除已經(jīng)沒有小方塊Block的sharp方塊物體，即childCount小于等于1的
 /// 并且判斷游戲結(jié)束邏輯
 /// </summary>
 public void FallDown()
 {
 currentShape = null;//將當(dāng)前方塊設(shè)置為空，這一步是為了生成新的方塊
 //更新UI邏輯
 if(ctrl.model.isDataUpdate)
 {
 ctrl.view.UpdateGameUI(ctrl.model.Score, ctrl.model.HighScore);
 }
 //刪除已經(jīng)沒有小方塊的sharp物體
 foreach(Transform t in blockHolder)
 {
 if(t.childCount<=1)
 {
 Destroy(t.gameObject);
 }
 }
 //判斷游戲結(jié)束
 if(ctrl.model.isGameOver())
 {
 PauseGame();
 ctrl.view.ShowGameOverUI(ctrl.model.Score);
 }
 }
 public void StartGame()
 {
 isPause = false;
 if (currentShape != null)
 {
 currentShape.Resume();
 }
 }
 public void PauseGame()
 {
 isPause = true;
 if(currentShape!=null)
 {
 currentShape.Pause();
 }
 }
 /// <summary>
 /// 生成一個(gè)方塊sharp
 /// </summary>
 void SpawnShape()
 {
 //隨機(jī)方塊類型
 int index = Random.Range(0, shapes.Length);//random create a shape
 //隨機(jī)顏色
 int indexColor = Random.Range(0, colors.Length);//random shape color
 //實(shí)例化方塊
 currentShape = GameObject.Instantiate(shapes[index]);
 //放入blockholder物體下
 currentShape.transform.parent = blockHolder;
 //初始化其方塊顏色等工作
 currentShape.Init(colors[indexColor],ctrl,this);
 
 }
 /// <summary>
 /// 刪除當(dāng)前正在下落的方塊
 /// </summary>
 public void ClearShape()
 {
 if(currentShape!=null)
 {
 Destroy(currentShape.gameObject);
 currentShape = null;
 }
 }
}