采用了双向链表结点来模拟蛇身结点；
通过C语言光标控制函数来打印地图、蛇身和食物；
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贪吃蛇游戏
C语言数据结构
作者：Dew
时间：2019年3月23日
版本：1.0
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**************************/ #include <stdio.h>
#include <stdlib.h>
#include <Windows.h>
#include <conio.h> #define N 30
#define TRUE 1
#define FALSE 0
#define TIME 300 #define LEFT 37
#define UP 38
#define RIGHT 39
#define DOWN 40 void initMap();
void showGame();
void initSnake();
void control(int key);
void updateSnake(int next_head_x, int next_head_y);
void gotoxy(int x, int y); //光标控制
void gameRun();
void moveUp();
void moveDown();
void moveLeft();
void moveRight();
void createFood();
void addSnakeNode(int cur_tail_x, int cur_tail_y);
void crashTest(int head_x, int head_y); struct snakeNode {
int pos_x;
int pos_y;
snakeNode* pre;
snakeNode* next;
}; struct foodNode {
int pos_x;
int pos_y;
}; int map[N][N];
int keyPress;
int key; int next_head_x, next_head_y;
int cur_tail_x, cur_tail_y; snakeNode* snake_head = (snakeNode *)malloc(sizeof(snakeNode));
snakeNode* snake_tail = (snakeNode *)malloc(sizeof(snakeNode)); foodNode* food = (foodNode *)malloc(sizeof(foodNode)); int main()
{
initSnake(); initMap(); gameRun(); return 0;
} void initMap()
{
int i, j;
for(i = 0; i < N; i++)
for (j = 0; j < N; j++)
{
if (i == 0 || i == N - 1)
map[i][j] = 1;
else if (j == 0 || j == N - 1)
map[i][j] = 1;
else
map[i][j] = 0;
}
} void showGame()
{
int i, j;
for (i = 0; i < N; i++)
{
for (j = 0; j < N; j++)
{
if (map[i][j] == 1) {
gotoxy(j*2, i);
printf("□");
}
else if (map[i][j] == 0) {
gotoxy(j*2, i);
printf(" ");
}
}
printf("\n");
}
gotoxy(snake_head->pos_y * 2, snake_head->pos_x);
printf("●");
gotoxy(snake_tail->pos_y * 2, snake_tail->pos_x);
printf("●");
gotoxy(food->pos_y * 2, food->pos_x);
printf("◇");
} void initSnake()
{
snake_head->pos_x = 15;
snake_head->pos_y = 15;
snake_head->pre = NULL;
snake_head->next = snake_tail; snake_tail->pre = snake_head;
snake_tail->pos_x = snake_tail->pre->pos_x + 1;
snake_tail->pos_y = snake_tail->pre->pos_y;
snake_tail->next = NULL; food->pos_x = rand() % 28 + 1;
food->pos_y = rand() % 28 + 1;
} void control(int direction)
{
if (direction == UP)
{
moveUp();
}
else if (direction == DOWN)
{
moveDown();
}
else if (direction == LEFT)
{
moveLeft();
}
else if (direction == RIGHT)
{
moveRight();
} } void updateSnake(int next_head_x, int next_head_y)
{
snakeNode* p = snake_tail;
while (p != snake_head)
{
p->pos_x = p->pre->pos_x;
p->pos_y = p->pre->pos_y;
p = p->pre;
}
p->pos_x = next_head_x;
p->pos_y = next_head_y;
} void gotoxy(int x, int y)
{
COORD pos;
HANDLE hOutput;
pos.X = x;
pos.Y = y;
hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleCursorPosition(hOutput, pos);
} void gameRun()
{
showGame(); control(UP); while (TRUE)
{
if (GetAsyncKeyState(VK_RIGHT))
{
control(RIGHT);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_LEFT))
{
control(LEFT);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_UP))
{
control(UP);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_DOWN))
{
control(DOWN);
Sleep(TIME);
}
}
} void moveUp()
{
while (TRUE)
{
next_head_x = snake_head->pos_x - 1;
next_head_y = snake_head->pos_y;
cur_tail_x = snake_tail->pos_x;
cur_tail_y = snake_tail->pos_y;
updateSnake(next_head_x, next_head_y);
gotoxy(next_head_y * 2, next_head_x);
printf("●");
crashTest(next_head_x, next_head_y);
if (next_head_x == food->pos_x && next_head_y == food->pos_y)
{
addSnakeNode(cur_tail_x, cur_tail_y);
createFood();
}
else
{
gotoxy(cur_tail_y * 2, cur_tail_x);
printf(" ");
} Sleep(TIME); if (GetAsyncKeyState(VK_RIGHT))
{
control(RIGHT);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_LEFT))
{
control(LEFT);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_UP))
{
control(UP);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_DOWN))
{
continue;
} }
} void moveDown()
{
while (TRUE)
{
next_head_x = snake_head->pos_x + 1;
next_head_y = snake_head->pos_y;
cur_tail_x = snake_tail->pos_x;
cur_tail_y = snake_tail->pos_y;
updateSnake(next_head_x, next_head_y);
gotoxy(next_head_y * 2, next_head_x);
printf("●");
crashTest(next_head_x, next_head_y);
if (next_head_x == food->pos_x && next_head_y == food->pos_y)
{
addSnakeNode(cur_tail_x, cur_tail_y);
createFood();
}
else
{
gotoxy(cur_tail_y * 2, cur_tail_x);
printf(" ");
} Sleep(TIME);
if (GetAsyncKeyState(VK_RIGHT))
{
control(RIGHT);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_LEFT))
{
control(LEFT);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_UP))
{
continue;
}
else if (GetAsyncKeyState(VK_DOWN))
{
control(DOWN);
Sleep(TIME);
} }
} void moveLeft()
{
while (TRUE)
{
next_head_x = snake_head->pos_x;
next_head_y = snake_head->pos_y - 1;
cur_tail_x = snake_tail->pos_x;
cur_tail_y = snake_tail->pos_y;
updateSnake(next_head_x, next_head_y);
gotoxy(next_head_y * 2, next_head_x);
printf("●");
crashTest(next_head_x, next_head_y);
if (next_head_x == food->pos_x && next_head_y == food->pos_y)
{
addSnakeNode(cur_tail_x, cur_tail_y);
createFood();
}
else
{
gotoxy(cur_tail_y * 2, cur_tail_x);
printf(" ");
} Sleep(TIME);
if (GetAsyncKeyState(VK_RIGHT))
{
continue;
}
else if (GetAsyncKeyState(VK_LEFT))
{
control(LEFT);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_UP))
{
control(UP);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_DOWN))
{
control(DOWN);
Sleep(TIME);
} }
} void moveRight()
{
while (TRUE)
{
next_head_x = snake_head->pos_x;
next_head_y = snake_head->pos_y + 1;
cur_tail_x = snake_tail->pos_x;
cur_tail_y = snake_tail->pos_y;
updateSnake(next_head_x, next_head_y);
gotoxy(next_head_y * 2, next_head_x);
printf("●");
crashTest(next_head_x, next_head_y);
if (next_head_x == food->pos_x && next_head_y == food->pos_y)
{
addSnakeNode(cur_tail_x, cur_tail_y);
createFood();
}
else
{
gotoxy(cur_tail_y * 2, cur_tail_x);
printf(" ");
} Sleep(TIME);
if (GetAsyncKeyState(VK_RIGHT))
{
control(RIGHT);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_LEFT))
{
continue;
}
else if (GetAsyncKeyState(VK_UP))
{
control(UP);
Sleep(TIME);
}
else if (GetAsyncKeyState(VK_DOWN))
{
control(DOWN);
Sleep(TIME);
} }
} void createFood()
{
food->pos_x = rand() % 28 + 1;
food->pos_y = rand() % 28 + 1;
gotoxy(food->pos_y * 2, food->pos_x);
printf("◇");
} void addSnakeNode(int cur_tail_x, int cur_tail_y)
{
snakeNode* tempNode = (snakeNode *)malloc(sizeof(snakeNode));
tempNode->pos_x = cur_tail_x;
tempNode->pos_y = cur_tail_y;
tempNode->next = NULL;
snake_tail->next = tempNode;
tempNode->pre = snake_tail;
snake_tail = tempNode;
} void crashTest(int head_x, int head_y)
{
snakeNode* p = snake_head->next;
while (p != NULL)
{
if (p->pos_x == head_x && p->pos_y == head_y)
{
gotoxy(32 * 2, 15);
printf("...发生撞击!......游戏结束...");
getchar();
}
if (p->pos_x == 1 || p->pos_x == N - 2 || p->pos_y == 1 || p->pos_y == N - 2)
{
gotoxy(32 * 2, 15);
printf("...发生撞击!......游戏结束...");
getchar();
}
p = p->next;
}
}