typedef struct Snake {
size_t x;
//行 size_t y;
//列 struct Snake* next;
}
Snake, *pSnake;

#ifndef __SNAKE_H__ #define __SNAKE_H__ #include <stdio.h> #include <stdlib.h> #include <Windows.h> #include <time.h> #include <malloc.h> #include <assert.h> //标识地图大小 #define ROW_MAP 10 //地图的行 #define COL_MAP 20 //地图的列 #define SUCCESS_SCORE 10//通关分数 enum Direction //蛇行走的方向 {
R, //右 L, //左 U, //上 D //下 }
Direction;
enum State {
ERROR_SELF, //咬到自己 ERROR_WALL, //撞到墙 NORMAL, //正常状态 SUCCESS //通关 }
State;
typedef struct Snake {
size_t x;
//行 size_t y;
//列 struct Snake* next;
}
Snake, *pSnake;
void StartGame();
void RunGame();
void EndGame();
#endif

#include "Snake.h" pSnake head = NULL;
//定义蛇头指针 pSnake Food = NULL;
//定义食物指针 int sleeptime = 500;
//间隔时间，用来控制速度 int Score = 0;
//总分 int everyScore = 1;
//每步得分 //定义游戏中用到的符号 const char food = '#';
const char snake = '*';
void Pos(int x, int y) //控制输出光标 {
COORD pos;
//pos为结构体 pos.X = x;
//控制列 pos.Y = y;
//控制行 SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), pos);
//读取标准输出句柄来控制光标为pos }
void Face() {
system("color 0C");
printf("*******************************************************n");
printf("* Welcome to Snake Game! *n");
printf("* *n");
printf("* ->开始游戏请按 enter键 *n");
printf("* ->退出游戏请按 esc键 *n");
printf("* ->暂停游戏请按 space键 *n");
printf("* ->通过上下左右键来控制蛇的移动 *n");
printf("* ->通过F1键减速 F2键加速 *n");
printf("*******************************************************n");
}
void Map() //初始化地图 {
int i = 0;
for(i = 0;
i<COL_MAP;
i+=2) //打印上下边框（每个■占用两列） {
Pos(i, 0);
printf("■");
Pos(i, ROW_MAP-1);
printf("■");
}
for(i = 0;
i<ROW_MAP;
i++) //打印左右边框 {
Pos(0, i);
printf("■");
Pos(COL_MAP-2, i);
printf("■");
}
}
void PrintSnake() //打印蛇 {
pSnake cur = head;
while(cur) {
Pos(cur->y, cur->x);
printf("%c", snake);
cur = cur->next;
}
}
void InitSnake() //初始化蛇身 {
int initNum = 3;
int i = 0;
pSnake cur;
head = (pSnake)malloc(sizeof(Snake));
head->x = 5;
head->y = 10;
head->next = NULL;
cur = head;
for(i = 1;
i < initNum;
i++) {
pSnake newNode = (pSnake)malloc(sizeof(Snake));
newNode->x = 5+i;
newNode->y = 10;
newNode->next = NULL;
cur->next = newNode;
cur = cur->next;
}
PrintSnake();
}
void CreateFood() //在地图上随机产生一个食物 {
pSnake cur = head;
Food = (pSnake)malloc(sizeof(Snake));
//产生x~y的随机数 k=rand()%(Y-X+1)+X;
srand((unsigned)time(NULL));
Food->x = rand()%(ROW_MAP-2 - 1 + 1)+1;
Food->y = rand()%(COL_MAP-3 - 2 + 1)+2;
Food->next = NULL;
while(cur) //检查食物是否与蛇身重合 {
if(cur->x == Food->x && cur->y == Food->y) {
free(Food);
Food = NULL;
CreateFood();
return;
}
cur = cur->next;
}
Pos(Food->y, Food->x);
printf("%c", food);
}
void StartGame() //游戏开始的所有设置 {
Face();
system("pause");
if(GetAsyncKeyState(VK_RETURN)) {
system("cls");
Pos(COL_MAP+5, 1);
printf("当前分数/通关分数:");
Pos(COL_MAP+20, 1);
printf("%d/%d", Score, SUCCESS_SCORE);
Pos(COL_MAP+5, 2);
printf("当前分每步得分:");
Pos(COL_MAP+20, 2);
printf("%d", everyScore);
Pos(COL_MAP+5, 3);
printf("n");
Pos(COL_MAP+5, 4);
printf("速度越快 得分越高哦！！n");
Map();
InitSnake();
CreateFood();
}
else if(GetAsyncKeyState(VK_ESCAPE)) {
exit(0);
}
}
int IsCrossWall() //判断是否碰到墙 {
if(head->x <= 0 || head->x >= ROW_MAP-1 ||head->y <= 1 || head->y >= COL_MAP-2) {
State = ERROR_WALL;
return 0;
}
return 1;
}
int IsEatSelf(pSnake newHead) //判断是否咬到自己 {
pSnake cur = head;
assert(newHead);
while(cur) {
if(cur->x == newHead->x && cur->y == newHead->y) {
State = ERROR_SELF;
return 0;
}
cur = cur->next;
}
return 1;
}
int IsFood(pSnake pos) //判断该位置是不是食物 {
assert(pos);
if(pos->x == Food->x && pos->y == Food->y) {
return 1;
}
return 0;
}
void SnakeMove() //蛇移动一次 {
pSnake newHead = NULL;
newHead = (pSnake)malloc(sizeof(Snake));
if(Direction == R) {
newHead->x = head->x;
newHead->y = head->y+1;
newHead->next = head;
}
else if(Direction == L) {
newHead->x = head->x;
newHead->y = head->y-1;
newHead->next = head;
}
else if(Direction == U) {
newHead->x = head->x-1;
newHead->y = head->y;
newHead->next = head;
}
else if(Direction == D) {
newHead->x = head->x+1;
newHead->y = head->y;
newHead->next = head;
}
if(IsFood(newHead)) {
head = newHead;
PrintSnake();
CreateFood();
Score += everyScore;
Pos(COL_MAP+20, 1);
printf("%d/%d", Score, SUCCESS_SCORE);
if(Score >= SUCCESS_SCORE) {
State = SUCCESS;
}
}
else {
if(IsCrossWall() && IsEatSelf(newHead)) {
pSnake cur = NULL;
head = newHead;
cur = head;
//删除蛇尾并打印 while(cur->next->next != NULL) {
Pos(cur->y, cur->x);
printf("%c", snake);
cur = cur->next;
}
Pos(cur->y, cur->x);
printf("%c", snake);
Pos(cur->next->y, cur->next->x);
printf(" ");
//打印空格来覆盖频幕上的蛇尾 free(cur->next);
cur->next = NULL;
}
else {
free(newHead);
newHead = NULL;
}
}
}
void Pause() {
while(1) {
Sleep(sleeptime);
if(GetAsyncKeyState(VK_SPACE)) {
break;
}
}
}
void ControlSnake() //用键盘控制游戏 {
if(GetAsyncKeyState(VK_UP) && Direction!=D) {
Direction = U;
}
else if(GetAsyncKeyState(VK_DOWN) && Direction!=U) {
Direction = D;
}
else if(GetAsyncKeyState(VK_LEFT) && Direction!=R) {
Direction = L;
}
else if(GetAsyncKeyState(VK_RIGHT) && Direction!=L) {
Direction = R;
}
else if(GetAsyncKeyState(VK_F1)) {
if(sleeptime != 500) {
sleeptime = 500;
everyScore = 1;
Pos(COL_MAP+20, 2);
printf("%d", everyScore);
}
}
else if(GetAsyncKeyState(VK_F2)) {
if(sleeptime != 300) {
sleeptime = 300;
everyScore = 2;
Pos(COL_MAP+20, 2);
printf("%d", everyScore);
}
}
else if(GetAsyncKeyState(VK_SPACE)) {
Pause();
}
else if(GetAsyncKeyState(VK_ESCAPE)) {
exit(0);
}
}
void StateGame() //判断游戏失败或成功 {
if(State == ERROR_SELF) {
system("cls");
printf("很遗憾，蛇咬到自己，游戏失败！n");
}
else if(State == ERROR_WALL) {
system("cls");
printf("很遗憾，蛇碰到墙壁，游戏失败！n");
}
else if(State == SUCCESS) {
system("cls");
printf("恭喜您，已通关！！！n");
}
}
void RunGame() {
Direction = R;
//蛇初始行走方向为右 State = NORMAL;
//游戏初始为正常状态 while(1) {
ControlSnake();
SnakeMove();
if(State != NORMAL) {
StateGame();
break;
}
Sleep(sleeptime);
}
}
void EndGame() //释放链表并恢复默认值 {
pSnake cur = head;
while(cur) {
pSnake del = cur;
cur = cur->next;
free(del);
del = NULL;
}
head = NULL;
if(Food != NULL) {
free(Food);
Food = NULL;
}
Score = 0;
everyScore = 1;
sleeptime = 500;
}

#include "Snake.h" int main() {
while(1) {
StartGame();
RunGame();
EndGame();
}
system("pause");
return 0;
}