已经大三了，学了很多基础知识，也应该将基础知识进行整合，通过一些小项目，先做了一个2048的小游戏，参照了网上的写法，于是准备独自写一个贪吃蛇，写了一个礼拜了，主要是找bug很难找，需要耐心去调试，去带入计算，总算是算是独立完成了，期间修改了很多遍方法，还有很多不完善的地方，准备之后做封装一起修改，先放上来一个不完全的版本。
#include<iostream>
#include<windows.h>
#include<stdlib.h>
#include<time.h>
#include<vector>
#include<iterator>
#include <conio.h>
/*
00 是在左上角!!!
左右动 列!!!y
上下动行 ！！x
*/
/*
vector 用队列来代替！！！！！！！！
*/
using namespace std;
//蛇头
int snake_x;
int snake_y;
//蛇尾
int tail_x;
int tail_y;
int snake_length = 1;
//定义食物，蛇，边界 0为可行走区域
const int zero = 0;
const int board = 1;
const int snake_head = 2;
const int snake_body = 3;
const int food = 4;
const int snake_tail = 5;
//定义方向
const int UP = 1;
const int DOWN = -1;
const int RIGHT = 2;
const int LEFT = -2;
//最大边界
const int max_size = 15;
//画面用二维数组显示
int screen[max_size][max_size] = { 0 };
//游戏状态
const int win = 0;
const int lose = 1;
const int game_continue = 2;
//蛇的运动方向
vector<int> snakeDirection;
void initial_print();
void set_food();
bool in_game();
void initial_print() {
system("cls");
cout << "小游戏贪吃蛇!" << endl;
srand((unsigned)time(NULL));
for (int i = 0; i < max_size; i++) {
for (int j = 0; j < max_size; j++) {
if (i == 0 || i == max_size - 1 || j == 0 || j == max_size - 1)
screen[i][j] = board;
}
}
snake_x = rand() % 5 + 3;
snake_y = rand() % 5 + 3;
tail_x = snake_x;
tail_y = snake_y;
snakeDirection.push_back(2);
screen[snake_x][snake_y] = snake_head;
set_food();
for (int i = 0; i < max_size; i++) {
for (int j = 0; j < max_size; j++) {
if (screen[i][j] == board) {
cout << "* ";
}
if (screen[i][j] == snake_head) {
cout << "@ ";
}
if (screen[i][j] == food) {
cout << "! ";
}
if (screen[i][j] == zero) {
cout << " ";
}
}
cout << "\n";
}
}
void set_food() {
srand((unsigned)time(NULL));
int food_x = rand() % (max_size-1) + 1;
int food_y = rand() % (max_size - 1) + 1;
while (screen[food_x][food_y] != zero) {
food_x = rand() % (max_size - 1) + 1;
food_y = rand() % (max_size - 1) + 1;
}
screen[food_x][food_y] = food;
}
bool in_game() {
int tmp, dir=0, tmpOther;
//有键盘输入
if (_kbhit()) {
tmpOther = _getch();
tmp = _getch();
switch (tmp) { //判断方向
case 72: dir = UP; break;
case 80: dir = DOWN; break;
case 75: dir = LEFT; break;
case 77: dir = RIGHT; break;
}
if (dir == (-1 * snakeDirection[0]))
return true;
//一端插入一端删除!!!
vector <int>::iterator begin = snakeDirection.begin();
snakeDirection.insert(begin, dir);
int tmp_x = snake_x;
int tmp_y = snake_y;
switch (snakeDirection[0]) {
case UP: snake_x = tmp_x - 1; break;
case DOWN: snake_x = tmp_x + 1; break;
case LEFT: snake_y = tmp_y - 1; break;
case RIGHT: snake_y = tmp_y + 1; break;
}
if (screen[snake_x][snake_y] == food)
{
screen[snake_x][snake_y] = snake_head;
screen[tmp_x][tmp_y] = snake_body;
snake_length++;
if (snake_length == 2) {
tail_x = tmp_x;
tail_y = tmp_y;
}
set_food();
}
else if ((screen[snake_x][snake_y]) == snake_body || screen[snake_x][snake_y] == board) {
return false;
}
else
{
screen[snake_x][snake_y] = snake_head;
screen[tmp_x][tmp_y] = snake_body;
snakeDirection.pop_back();
if (snake_length > 1) {
screen[tail_x][tail_y] = zero;
switch (snakeDirection.back()) {
case UP: tail_x = tail_x - 1; break;
case DOWN: tail_x = tail_x + 1; break;
case LEFT: tail_y = tail_y - 1; break;
case RIGHT: tail_y = tail_y + 1; break;
}
}
else {
screen[tail_x][tail_y] = zero;
tail_x = snake_x;
tail_y = snake_y;
}
}
}
else {
int flag = 0;
dir = snakeDirection[0];
vector <int>::iterator begin = snakeDirection.begin();
snakeDirection.insert(begin, dir);
int tmp_x = snake_x;
int tmp_y = snake_y;
switch (snakeDirection.front()) {
case UP: snake_x = tmp_x - 1; break;
case DOWN: snake_x = tmp_x + 1; break;
case LEFT: snake_y = tmp_y - 1; break;
case RIGHT: snake_y = tmp_y + 1; break;
}
if (screen[snake_x][snake_y] == food)
{
screen[snake_x][snake_y] = snake_head;
screen[tmp_x][tmp_y] = snake_body;
snake_length++;
if (snake_length == 2) {
tail_x = tmp_x;
tail_y = tmp_y;
}
set_food();
}
else if ((screen[snake_x][snake_y]) == snake_body || screen[snake_x][snake_y] == board) {
return false;
}
else
{
screen[snake_x][snake_y] = snake_head;
screen[tmp_x][tmp_y] = snake_body;
snakeDirection.pop_back();
if (snake_length > 1) {
screen[tail_x][tail_y] = zero;
switch (snakeDirection.back()) {
case UP: tail_x = tail_x - 1; break;
case DOWN: tail_x = tail_x + 1; break;
case LEFT: tail_y = tail_y - 1; break;
case RIGHT: tail_y = tail_y + 1; break;
}
}
else {
screen[tail_x][tail_y] = zero;
tail_x = snake_x;
tail_y = snake_y;
}
}
}
return true;
}
void print() {
system("cls");
cout << "小游戏贪吃蛇!" << endl;
srand((unsigned)time(NULL));
for (int i = 0; i < max_size; i++) {
for (int j = 0; j < max_size; j++) {
if (screen[i][j] == board) {
cout << "* ";
}
if (screen[i][j] == snake_head) {
cout << "@ ";
}
if (screen[i][j] == food) {
cout << "! ";
}
if (screen[i][j] == zero) {
cout << " ";
}
if (screen[i][j] == snake_body) {
cout << "0 ";
}
}
cout << "\n";
}
}
int main() {
initial_print();
while (true) {
if (in_game())
{
print();
cout << snakeDirection.size() << endl;
cout << snake_length;
}
else
break;
Sleep(500);
}
cout << "you have lost !!!!";
while (true) {
}
}