简单的四子棋游戏

目标

一个简单的, 没有过多约束的, 基于终端的,交互的四子棋游戏.
采用java视线.

核心

判断胜利的方法, 没一次落子, 搜索周围除了"上"的7个方向, 统计由近到远连续的和自己颜色相同的棋子数.
然后看对位的两个方向上之和是否为3(加上自己就是4了)

代码

//Board.java
import java.util.Scanner;
public class Board{
    int width =6; int height =6;
    int[] state = new int[7]; //记录落子后7个方向上同子数目
    char[] board = new char[width*height];
    public Board(){
        for(int i=0;i<board.length;i++){
            board[i] = ' ';
        }
    }
    
    public static void main(String []args){
        System.out.println("hi");
        Board b = new Board();
        b.interact();
    }
    public void show(){
        for(int row=height-1;row>=0;row--){
            for(int col=0;col<width;col++){
                System.out.print(board[row*width+col]+" ");
            }
            System.out.print("\n");
        }
        for(int col = 0;col<width;col++){
            System.out.print(col);
            System.out.print(' ');
        }
        System.out.print('\n');
    }
    public void setRandom(){
        push(0,'X');
        push(0,'X');
        push(0,'X');
        push(0,'X');
        push(0,'X');
    }
    public void interact(){
        int res;
        int col;
        Scanner input = new Scanner(System.in);
        while(true){
            System.out.print("waiting for X column:");
            col = input.nextInt(); 
            res = push(col,'X');
            if(res == 1){
                show();
                System.out.println("X winning!!");
                break;
            }
            show();
            System.out.print("waiting for O column:");
            col = input.nextInt(); 
            res = push(col,'O');
            if(res == 1){
                show();
                System.out.print("O winning!!");
                break;
            }
            show();
        }
    }
    private int getNextIndex(int col){
        int row = 0;
        while(true){
             char value = board[row*width+col];
             if(value == ' '){
                 return row;
             }
             row++;
        }
    }
    public int check(int row, int col, char value){
        int k;
        int Nrow,Ncol;
        k = 1; while(true){ Nrow = row+k; Ncol = col+k; if(Nrow>=0&&Nrow<width&&Ncol>=0&&Ncol<height&&board[Nrow*width+Ncol]==value){ state[0] = k++; }else{break;} }
        k = 1; while(true){ Nrow = row+0; Ncol = col+k; if(Nrow>=0&&Nrow<width&&Ncol>=0&&Ncol<height&&board[Nrow*width+Ncol]==value){ state[1] = k++; }else{break;} }
        k = 1; while(true){ Nrow = row-k; Ncol = col+k; if(Nrow>=0&&Nrow<width&&Ncol>=0&&Ncol<height&&board[Nrow*width+Ncol]==value){ state[2] = k++; }else{break;} }
        k = 1; while(true){ Nrow = row-k; Ncol = col+0; if(Nrow>=0&&Nrow<width&&Ncol>=0&&Ncol<height&&board[Nrow*width+Ncol]==value){ state[3] = k++; }else{break;} }
        k = 1; while(true){ Nrow = row-k; Ncol = col-k; if(Nrow>=0&&Nrow<width&&Ncol>=0&&Ncol<height&&board[Nrow*width+Ncol]==value){ state[4] = k++; }else{break;} }
        k = 1; while(true){ Nrow = row+0; Ncol = col-k; if(Nrow>=0&&Nrow<width&&Ncol>=0&&Ncol<height&&board[Nrow*width+Ncol]==value){ state[5] = k++; }else{break;} }
        k = 1; while(true){ Nrow = row+k; Ncol = col-k; if(Nrow>=0&&Nrow<width&&Ncol>=0&&Ncol<height&&board[Nrow*width+Ncol]==value){ state[6] = k++; }else{break;} }
        if(state[0]+state[4]==3||state[1]+state[5]==3||state[2]+state[6]==3||state[3]==3){return 1;}
        else{return 0;}
    }
    public int push(int col, char value){
        int row=getNextIndex(col);
        if(row==height){
            System.out.println("full");
            return -1;
        }
        board[row*width+col] = value;
        int res =  check(row,col,value);
        return res;

    }
    public void test(){
        setRandom();
        System.out.print("\n");
        show();
    }
}

结果

hi
waiting for X column:0 
            
            
            
            
            
X           
0 1 2 3 4 5 
waiting for O column:1
            
            
            
            
            
X O         
0 1 2 3 4 5 
waiting for X column:2
            
            
            
            
            
X O X       
0 1 2 3 4 5 
waiting for O column:2
            
            
            
            
    O       
X O X       
0 1 2 3 4 5 
waiting for X column:3
            
            
            
            
    O       
X O X X     
0 1 2 3 4 5 
waiting for O column:3
            
            
            
            
    O O     
X O X X     
0 1 2 3 4 5 
waiting for X column:2
            
            
            
    X       
    O O     
X O X X     
0 1 2 3 4 5 
waiting for O column:3
            
            
            
    X O     
    O O     
X O X X     
0 1 2 3 4 5 
waiting for X column:4
            
            
            
    X O     
    O O     
X O X X X   
0 1 2 3 4 5 
waiting for O column:4
            
            
            
    X O     
    O O O   
X O X X X   
0 1 2 3 4 5 
waiting for X column:4
            
            
            
    X O X   
    O O O   
X O X X X   
0 1 2 3 4 5 
waiting for O column:4
O winning!!            
            
        O   
    X O X   
    O O O   
X O X X X   
0 1 2 3 4 5 

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