Java 小游戏开发之俄罗斯方块

package com.fry.tetris;import java.util.Arrays;import java.util.Random;/** * 4格方块  */public class Tetromino {  protected Cell[] cells = new Cell[4];  /** 保存旋转的相对于轴位置状态 */  protected State[] states;    /** 随机生成 4格方块, 使用简单工厂方法模式!    * randomTetromino 随机生成一个四格方块    * 这个方面的返回值是多态的!   * */  public static Tetromino randomTetromino(){    Random r = new Random();    int type = r.nextInt(7);    switch(type){    case 0: return new T();    case 1: return new I();    case 2: return new J();    case 3: return new L();    case 4: return new O();    case 5: return new S();    case 6: return new Z();    }    return null;  }    public Cell[] getCells() {    return cells;  }  /** 下落 */  public void softDrop(){    for(int i=0; i<cells.length; i++){      cells[i].moveDown();    }  }  public void moveRight(){    //System.out.println("moveRight()");    for(int i=0; i<cells.length; i++){      this.cells[i].moveRight();    }  }   public void moveLeft(){    for(int i=0; i<cells.length; i++){      cells[i].moveLeft();    }  }  private int index = 100000;  /** 在 Tetromino 上添加方法 */  public void rotateRight() {    index++;//index = 10001    // index % states.length = 10001 % 4 = 1    State s = states[index%states.length];//s1    // [0] + s1 = [1]    Cell o = cells[0];//获取当前的轴    //轴与相对位置的和作为旋转以后的格子位置    cells[1].setRow(o.getRow()+s.row1);    cells[1].setCol(o.getCol()+s.col1);    cells[2].setRow(o.getRow()+s.row2);    cells[2].setCol(o.getCol()+s.col2);    cells[3].setRow(o.getRow()+s.row3);    cells[3].setCol(o.getCol()+s.col3);  }  /** 在 Tetromino 上添加方法 */  public void rotateLeft() {    index--;//index = 10001    // index % states.length = 10001 % 4 = 1    State s = states[index%states.length];//s1    // [0] + s1 = [1]    Cell o = cells[0];//获取当前的轴    cells[1].setRow(o.getRow()+s.row1);    cells[1].setCol(o.getCol()+s.col1);    cells[2].setRow(o.getRow()+s.row2);    cells[2].setCol(o.getCol()+s.col2);    cells[3].setRow(o.getRow()+s.row3);    cells[3].setCol(o.getCol()+s.col3);  }    @Override  public String toString() {    return Arrays.toString(cells);   }    /** Tetromino 类中添加的 内部类 用于记录旋转状态 */  protected class State{    int row0,col0,row1,col1,row2,col2,row3,col3;    public State(int row0, int col0, int row1, int col1,        int row2, int col2,        int row3, int col3) {      this.row0 = row0;      this.col0 = col0;      this.row1 = row1;      this.col1 = col1;      this.row2 = row2;      this.col2 = col2;      this.row3 = row3;      this.col3 = col3;    }     }  }//Tetromino 类的结束class T extends Tetromino{  public T() {    cells[0] = new Cell(0, 4, Tetris.T);    cells[1] = new Cell(0, 3, Tetris.T);    cells[2] = new Cell(0, 5, Tetris.T);    cells[3] = new Cell(1, 4, Tetris.T);    states = new State[]{        new State(0,0, 0,-1, 0,1, 1, 0),        new State(0,0, -1,0, 1,0, 0,-1),        new State(0,0, 0,1, 0,-1, -1,0),        new State(0,0, 1,0, -1,0, 0,1)};  }}class I extends Tetromino{  public I() {    cells[0] = new Cell(0, 4, Tetris.I);    cells[1] = new Cell(0, 3, Tetris.I);    cells[2] = new Cell(0, 5, Tetris.I);    cells[3] = new Cell(0, 6, Tetris.I);    states = new State[]{        new State(0,0, 0,1, 0,-1, 0,-2),        new State(0,0, -1,0, 1,0,2,0)};  }}class L extends Tetromino {  public L() {    cells[0] = new Cell(0, 4, Tetris.L);    cells[1] = new Cell(0, 3, Tetris.L);    cells[2] = new Cell(0, 5, Tetris.L);    cells[3] = new Cell(1, 3, Tetris.L);    states = new State[]{        new State(0,0, 0,-1, 0,1, 1,-1 ),        new State(0,0, -1,0, 1,0, -1,-1),        new State(0,0, 0,1, 0,-1, -1,1),        new State(0,0, 1,0, -1,0, 1,1)};    }}class J extends Tetromino {  public J() {    cells[0] = new Cell(0, 4, Tetris.J);    cells[1] = new Cell(0, 3, Tetris.J);    cells[2] = new Cell(0, 5, Tetris.J);    cells[3] = new Cell(1, 5, Tetris.J);    states = new State[]{        new State(0,0, 0,-1, 0,1, 1,1),        new State(0,0, -1,0, 1,0, 1,-1),        new State(0,0, 0,1, 0,-1, -1,-1),        new State(0,0, 1,0, -1,0, -1,1 )};  }}class S extends Tetromino {  public S() {    cells[0] = new Cell(0, 4, Tetris.S);    cells[1] = new Cell(0, 5, Tetris.S);    cells[2] = new Cell(1, 3, Tetris.S);    cells[3] = new Cell(1, 4, Tetris.S);    states = new State[]{      new State(0,0, 0,1, 1,-1, 1,0 ),      new State(0,0, -1,0, 1,1, 0,1 )};  }}class Z extends Tetromino {  public Z() {    cells[0] = new Cell(1, 4, Tetris.Z);    cells[1] = new Cell(0, 3, Tetris.Z);    cells[2] = new Cell(0, 4, Tetris.Z);    cells[3] = new Cell(1, 5, Tetris.Z);    states = new State[]{        new State(0,0, -1,-1, -1,0, 0,1 ),        new State(0,0, -1,1, 0,1, 1,0 )};  }}class O extends Tetromino {  public O() {    cells[0] = new Cell(0, 4, Tetris.O);    cells[1] = new Cell(0, 5, Tetris.O);    cells[2] = new Cell(1, 4, Tetris.O);    cells[3] = new Cell(1, 5, Tetris.O);    states = new State[]{        new State(0,0, 0,1, 1,0, 1,1 ),        new State(0,0, 0,1, 1,0, 1,1 )};  }}

package com.fry.tetris;import java.awt.Image;/** * 格子 * 每一个小格子，就有所在的行 列 和图片  */public class Cell {  private int row;  private int col;  //private int color;  private Image image;//格子的贴图    public Cell() {  }  public Cell(int row, int col, Image image) {    super();    this.row = row;    this.col = col;    this.image = image;  }  public int getRow() {    return row;  }  public void setRow(int row) {    this.row = row;  }  public int getCol() {    return col;  }  public void setCol(int col) {    this.col = col;  }      public Image getImage() {    return image;  }  public void setImage(Image image) {    this.image = image;  }  public void moveRight(){    col++;    //System.out.println("Cell moveRight()" + col);   }    public void moveLeft(){    col--;  }    public void moveDown(){    row++;  }    @Override  public String toString() {    return "["+row+","+col+"]";  }}

package com.fry.tetris;import java.util.Arrays;import java.util.Random;/** * 4格方块  */public class Tetromino {  protected Cell[] cells = new Cell[4];  /** 保存旋转的相对于轴位置状态 */  protected State[] states;    /** 随机生成 4格方块, 使用简单工厂方法模式!    * randomTetromino 随机生成一个四格方块    * 这个方面的返回值是多态的!   * */  public static Tetromino randomTetromino(){    Random r = new Random();    int type = r.nextInt(7);    switch(type){    case 0: return new T();    case 1: return new I();    case 2: return new J();    case 3: return new L();    case 4: return new O();    case 5: return new S();    case 6: return new Z();    }    return null;  }    public Cell[] getCells() {    return cells;  }  /** 下落 */  public void softDrop(){    for(int i=0; i<cells.length; i++){      cells[i].moveDown();    }  }  public void moveRight(){    //System.out.println("moveRight()");    for(int i=0; i<cells.length; i++){      this.cells[i].moveRight();    }  }   public void moveLeft(){    for(int i=0; i<cells.length; i++){      cells[i].moveLeft();    }  }  private int index = 100000;  /** 在 Tetromino 上添加方法 */  public void rotateRight() {    index++;//index = 10001    // index % states.length = 10001 % 4 = 1    State s = states[index%states.length];//s1    // [0] + s1 = [1]    Cell o = cells[0];//获取当前的轴    //轴与相对位置的和作为旋转以后的格子位置    cells[1].setRow(o.getRow()+s.row1);    cells[1].setCol(o.getCol()+s.col1);    cells[2].setRow(o.getRow()+s.row2);    cells[2].setCol(o.getCol()+s.col2);    cells[3].setRow(o.getRow()+s.row3);    cells[3].setCol(o.getCol()+s.col3);  }  /** 在 Tetromino 上添加方法 */  public void rotateLeft() {    index--;//index = 10001    // index % states.length = 10001 % 4 = 1    State s = states[index%states.length];//s1    // [0] + s1 = [1]    Cell o = cells[0];//获取当前的轴    cells[1].setRow(o.getRow()+s.row1);    cells[1].setCol(o.getCol()+s.col1);    cells[2].setRow(o.getRow()+s.row2);    cells[2].setCol(o.getCol()+s.col2);    cells[3].setRow(o.getRow()+s.row3);    cells[3].setCol(o.getCol()+s.col3);  }    @Override  public String toString() {    return Arrays.toString(cells);   }    /** Tetromino 类中添加的 内部类 用于记录旋转状态 */  protected class State{    int row0,col0,row1,col1,row2,col2,row3,col3;    public State(int row0, int col0, int row1, int col1,        int row2, int col2,        int row3, int col3) {      this.row0 = row0;      this.col0 = col0;      this.row1 = row1;      this.col1 = col1;      this.row2 = row2;      this.col2 = col2;      this.row3 = row3;      this.col3 = col3;    }     }  }//Tetromino 类的结束class T extends Tetromino{  public T() {    cells[0] = new Cell(0, 4, Tetris.T);    cells[1] = new Cell(0, 3, Tetris.T);    cells[2] = new Cell(0, 5, Tetris.T);    cells[3] = new Cell(1, 4, Tetris.T);    states = new State[]{        new State(0,0, 0,-1, 0,1, 1, 0),        new State(0,0, -1,0, 1,0, 0,-1),        new State(0,0, 0,1, 0,-1, -1,0),        new State(0,0, 1,0, -1,0, 0,1)};  }}class I extends Tetromino{  public I() {    cells[0] = new Cell(0, 4, Tetris.I);    cells[1] = new Cell(0, 3, Tetris.I);    cells[2] = new Cell(0, 5, Tetris.I);    cells[3] = new Cell(0, 6, Tetris.I);    states = new State[]{        new State(0,0, 0,1, 0,-1, 0,-2),        new State(0,0, -1,0, 1,0,2,0)};  }}class L extends Tetromino {  public L() {    cells[0] = new Cell(0, 4, Tetris.L);    cells[1] = new Cell(0, 3, Tetris.L);    cells[2] = new Cell(0, 5, Tetris.L);    cells[3] = new Cell(1, 3, Tetris.L);    states = new State[]{        new State(0,0, 0,-1, 0,1, 1,-1 ),        new State(0,0, -1,0, 1,0, -1,-1),        new State(0,0, 0,1, 0,-1, -1,1),        new State(0,0, 1,0, -1,0, 1,1)};    }}class J extends Tetromino {  public J() {    cells[0] = new Cell(0, 4, Tetris.J);    cells[1] = new Cell(0, 3, Tetris.J);    cells[2] = new Cell(0, 5, Tetris.J);    cells[3] = new Cell(1, 5, Tetris.J);    states = new State[]{        new State(0,0, 0,-1, 0,1, 1,1),        new State(0,0, -1,0, 1,0, 1,-1),        new State(0,0, 0,1, 0,-1, -1,-1),        new State(0,0, 1,0, -1,0, -1,1 )};  }}class S extends Tetromino {  public S() {    cells[0] = new Cell(0, 4, Tetris.S);    cells[1] = new Cell(0, 5, Tetris.S);    cells[2] = new Cell(1, 3, Tetris.S);    cells[3] = new Cell(1, 4, Tetris.S);    states = new State[]{      new State(0,0, 0,1, 1,-1, 1,0 ),      new State(0,0, -1,0, 1,1, 0,1 )};  }}class Z extends Tetromino {  public Z() {    cells[0] = new Cell(1, 4, Tetris.Z);    cells[1] = new Cell(0, 3, Tetris.Z);    cells[2] = new Cell(0, 4, Tetris.Z);    cells[3] = new Cell(1, 5, Tetris.Z);    states = new State[]{        new State(0,0, -1,-1, -1,0, 0,1 ),        new State(0,0, -1,1, 0,1, 1,0 )};  }}class O extends Tetromino {  public O() {    cells[0] = new Cell(0, 4, Tetris.O);    cells[1] = new Cell(0, 5, Tetris.O);    cells[2] = new Cell(1, 4, Tetris.O);    cells[3] = new Cell(1, 5, Tetris.O);    states = new State[]{        new State(0,0, 0,1, 1,0, 1,1 ),        new State(0,0, 0,1, 1,0, 1,1 )};  }}