壹般對於此類的遊戲，都分為控制算法，顯示算法，判定算法等幾個大部分。
供參考：
#include <stdio.h>
#include <windows.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
#include <time.h> //使用當前時間做種子;
enum dir{up,down,left,right}; //枚舉類型enum dir;
//圍墻;
void InitFence();
void OutputF();
char game[20][20];
//畫框框;
void InitFence(){
int i,j;
for(i=0; i<20; i++)
for(j=0; j<20; j++){
if(i==0||i==19||j==0||j==19)
game[i][j]= '*';
else game[i][j]= ' ';
}
}
//顯示框框;
void OutputF(){
int i,j;
for(i=0; i<20; i++){
for(j=0; j<20; j++)
printf("%c ",game[i][j]);
printf("\n");
}
}
//蛇結點;
struct SnakeNode{
int x,y;
struct SnakeNode *prior,*next;
}*head=NULL, *tail =NULL;
void add_head(int x,int y);
int get_x(struct SnakeNode *p);
int get_y(struct SnakeNode *p);
void delete_tail();
//插入頭結點;
void add_head(int x,int y){
struct SnakeNode *q= (struct SnakeNode *)malloc(sizeof(struct SnakeNode));
q->x =x; q->y =y;
q->next =head;
q->prior =NULL;
if(head) head->prior =q;
head =q;
if(!tail) tail =head;
game[x][y]= '*'; //f對象可以在定義Fence類時定義; 且Fence類在SnakeNode類前定義;
}
int get_x(struct SnakeNode *p){
return p->x;
}
int get_y(struct SnakeNode *p){
return p->y;
}
//刪除尾結點;
void delete_tail(){
struct SnakeNode *p =tail;
game[get_x(tail)][get_y(tail)]= ' ';//把尾結點的坐標表示的'*'置為空格;
if(tail==head)
tail= head= NULL;
else{
tail= tail->prior;
tail->next= NULL;
}
free(p);
}
//move移動;
struct move{
enum dir point; //枚舉變量point: 控制方向;
int food_x;
int food_y;
};
void moving(struct move *m);
void change_point(char,struct move *m); //改變方向;
void get_food(struct move *m);
void get_food(struct move *m){
srand((unsigned int) time(NULL)); //做種子(程序運行時間);
m->food_x= rand()%18+1;
m->food_y= rand()%18+1;
game[m->food_x][m->food_y]= '*';
}
void moving(struct move *m){
int a,b;
a= get_x(head); //取得頭結點橫坐標
b= get_y(head); //頭結點縱坐標
switch(m->point){
case up: --a; break;
case down: ++a; break;
case left: --b; break;
case right: ++b; break;
}
if(a==19||b==19||a==0||b==0){ //判斷是否撞墻;
printf("game over!!!\n");
exit(0);
}
if(a==m->food_x && b==m->food_y){ //吃food;
add_head(a,b);
get_food(m);
}
else{
add_head(a,b); //插入頭結點;
delete_tail(); //刪除尾結點;
}
}
void change_point(char keydown,struct move *m){
switch(keydown){
// case 'w': m->point= up; break;
// case 's': m->point= down; break;
// case 'a': m->point= left; break;
// case 'd': m->point= right; break;
case 72: m->point= up; break;
case 80: m->point= down; break;
case 75: m->point= left; break;
case 77: m->point= right; break;
}
}
//main();
int main(){
struct move m;
printf("Using 'w,s,a,d'to control direction!!!\n\n\n");
InitFence();
add_head(4,3);
add_head(4,4);
add_head(4,5);
get_food(&m);
OutputF();
while (1){
char keydown= getch(); //getch()返回鍵盤上讀取的字符;包含頭文件<conio.h>
change_point(keydown,&m);
while(!kbhit()){ //判斷有沒有按鍵落下;
system("cls"); //清屏函數;
moving(&m);
OutputF();
Sleep(200);
}
}
return 0;
}