简单Windows控制台贪吃蛇(二维数组模拟地图, 链表模拟贪吃蛇, WASD控制行走, gotoxy替换刷新操作)

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/w442863748/article/details/51852306

#include <stdlib.h>
#include <iostream>
#include <list>
#include <conio.h>
#include <time.h>
#include <algorithm>
#include <windows.h>

using namespace std;

const int MAXR = 20;
const int MAXC = 50;

void gotoxy(int x, int y) //定位到第y行的第x列
{
	int xx=0x0b;
	HANDLE hOutput;
	COORD loc;
	loc.X = x;
	loc.Y=y;
	hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
	SetConsoleCursorPosition(hOutput, loc);
	return;
}

struct point
{
	int x;
	int y;
	point& operator=(const point &p)
	{
		if(&p == this)
			return *this;

		x = p.x;
		y = p.y;
		return *this;
	}

	bool operator==(const point &p)
	{
		if(&p == this)
			return true;
		else if(x == p.x && y == p.y)
			return true;
		
		return false;
	}
};

list<point> snake;
point randP;

void randPoint()
{
	randP.x = 0 + (MAXR - 1 + 1) * rand() / RAND_MAX;
	randP.y = 0 + (MAXC - 1 + 1) * rand() / RAND_MAX;
	list<point>::iterator itor = find(snake.begin(), snake.end(), randP);
	if(itor == snake.end())
		return;
	else
		randPoint();
}

void initSnake()
{
	point p;
	p.x = MAXR / 2;
	p.y = 2;

	snake.push_back(p);
	p.y--;
	snake.push_back(p);
	p.y--;
	snake.push_back(p);

	randPoint();
}

void printArr(char arr[][MAXC])
{
	gotoxy(0, 0);
	cout << "w a s d控制方向,q退出:" << endl;
	for(int i = 0; i < MAXR; i++)
		for(int j = 0; j < MAXC; j++)
			arr[i][j] = '-';

	arr[randP.x][randP.y] = '*';

	list<point>::iterator itor;
	for(itor = snake.begin(); itor != snake.end(); itor++)
		arr[(*itor).x][(*itor).y] = '*';

	for(int i = 0; i < MAXR; i++)
	{
		for(int j = 0; j < MAXC; j++)
			cout << arr[i][j];
		cout << endl;
	}
}

int main(int argc, char* argv[])
{
	srand((int)time(0));
	char arr[MAXR][MAXC];

	initSnake();
	printArr(arr);

	char inputC;
	bool effInput;

	point p = snake.front();
	char state = 'd';

	while((inputC = getch()) != 'q')
	{
		switch(inputC)
		{
		case 'w':
			if(state == 's')
				continue;

			state = 'w';
			p.x--;
			break;
		case 'a':
			if(state == 'd')
				continue;

			state = 'a';
			p.y--;
			break;
		case 's':
			if(state == 'w')
				continue;

			state = 's';
			p.x++;
			
			break;
		case 'd':
			if(state == 'a')
				continue;

			state = 'd';
			p.y++;
			break;
		default:
			continue;
		}
		if(p.x >= MAXR)
			p.x = 0;
		if(p.x < 0)
			p.x = MAXR - 1;
		if(p.y >= MAXC)
			p.y = 0;
		if(p.y < 0)
			p.y = MAXC - 1;

		snake.push_front(p);
		if(p == randP)
			randPoint();
		else
			snake.pop_back();
		//system("cls");
		printArr(arr);
	}

	system("pause");
	return 0;
}