C语言 细胞自动机(生命游戏)

#include<stdio.h>
#include<stdlib.h>
#include <windows.h>

#define ROWS 60
#define COLS 60

int board[ROWS][COLS];
int temp[ROWS][COLS];

int system(const char *string);
void randomize_board();
void show_board();
int num_neighbours(int x,int y);
void update_board();

int main(){
    randomize_board();
    while(1){
        update_board();
    }
    return 0;
}

//初始化
void randomize_board(){
    for(int y=0;y<ROWS;y++){
        for(int x=0;x<COLS;x++){
            if(rand()%5==0){
                board[x][y]=1;
            }
            temp[x][y] = board[x][y];
        }
    }
}

//显示
void show_board(){
    system("cls");
    for(int y=0;y<ROWS;y++){
        for(int x=0;x<COLS;x++){
            if(board[x][y]){
                printf("■");
            }else{
                printf("□");
            }
        }
        printf("
");
    }
    Sleep(800);
}

//计算邻居数
int num_neighbours(int x,int y){
    int num_adj = 0; //附近存活的细胞数
    int tmpy = y;
    int tmpx = x;

    //8号位
    if(y-1<0)
        tmpy = ROWS -1;
    else
        tmpy = y - 1;
    if(board[x][tmpy] == 1) num_adj++; 

    //2号位
    if(y+1>ROWS)
        tmpy = 0;
    else
        tmpy = y+1;
    if(board[x][tmpy]==1) num_adj++;

    //4号位
    if(x-1<0)
        tmpx = COLS-1;
    else
        tmpx = x-1;
    if(board[tmpx][y]==1)num_adj++;

    //6号位
    if(x+1>=COLS)
        tmpx = 0;
    else
        tmpx = x+1;
    if(board[tmpx][y]==1) num_adj++;

    //9号位
    if (y + 1 >= ROWS)
        tmpy = 0;
    else
        tmpy = y + 1;
    if (x + 1 >= COLS)
        tmpx = 0;
    else
        tmpx = x + 1;
    if (board[tmpx][tmpy] == 1) num_adj++;

    //1号位
    if (y - 1 <0)
        tmpy = ROWS-1;
    else
        tmpy = y-1;
    if (x - 1 < 0)
        tmpx = COLS-1;
    else
        tmpx = x - 1;
    if (board[tmpx][tmpy] == 1) num_adj++;

    //3号位
    if(x+1>=COLS)
        tmpx = 0;
    else
        tmpx = x+1;
    if(y-1<0)
        tmpy = ROWS-1;
    else
        tmpy = y-1;
    if(board[tmpx][tmpy]==1) num_adj++;

    //7号位 y+ x-
    if (y + 1 >= ROWS)
        tmpy = 0;
    else
        tmpy = y + 1;
    if(x-1<0)
        tmpx = COLS-1;
    else
        tmpx = x - 1;
    if(board[tmpx][tmpy]==1) num_adj++;

    return num_adj;

}

//更新
void update_board(){
    int neighbours = 0;

    for(int y=0;y<ROWS;y++){
        for(int x=0;x<COLS;x++){
            neighbours = num_neighbours(x,y);
            if(neighbours<2&&board[x][y]==1){
                temp[x][y]=0;
            }
            else if(neighbours>3&&board[x][y]==1){
                temp[x][y]=0;
            }else if(neighbours==3&&board[x][y]==0){
                temp[x][y]=1;
            }
        }
    }

    for(int i=0;i<ROWS;i++){
        for(int j=0;j<COLS;j++){
            board[j][i]=temp[j][i];
        }
    }
    show_board();
}