www.pudn.com > snake.zip > snake.c

#include 
#include 
#include 
#include"utilwin32.cpp" 
#define Up 0x48 
#define Down 0x50 
#define Left 0x4b  //オ  
#define Right 0x4d  //  
 
struct node{ 
       int x; 
       int y; 
       struct node *next; 
}; 
 
typedef struct node NODE; 
 
NODE *first,*current,*previous,*newnode; 
int food_x=0,food_y=0; 
int snake_x,snake_y; 
int score=0; 
int snake; 
int speed=150; 
int add_speed_1=0,add_speed_2=0,add_speed_3=0,add_speed_4=0; 
char w2=Right; 
char temp_w2; 
char w; 
void freelist(NODE *); 
void newgame(); 
void playgame(); 
void randfood(); 
int check_key_down(); 
void check_eat_food(); 
void move_snake(); 
void print_snake(); 
void checkspeed(); 
void printbackground(); 
void clear_snake(); 
int check_hit_wall(); 
int check_hit_snake(); 
void init(); 
 
 
int main(){ 
     
 
 playgame(); 
//freelist(first); 
     
} 
 
 
 
void newgame(){  //﹍て僣3snake  
     
     
   int i;  
  for(i=0;i<=2;i++){ 
    current=(NODE *)malloc(sizeof(NODE)); //穝糤儶呺娀  
    current->x=20-i; //畒囜  
    current->y=10; 
    if(i==0) 
       first=current;     
    else 
       previous->next=current; 
        
    current->next=NULL; 
     
    previous=current; 
     
   } 
   current=first;      
      
} 
 
void playgame(){ //璶祘Α伴┮  
      
      
    init(); //﹍て办岪囒,﹍て僣3劖矰  
    clrscr(); 
       
   char quit;    
  randfood(1); //叝囒  
  printbackground(); //璉春  
 for(;;){ 
      
     checkspeed(); //変诡硉 10,20,25,30常呇硉  
     print_snake();  //劖矰  
      
     check_eat_food(); //変琩琌  
     check_key_down(); //変琩妦よ  
     move_snake(); //簿凁劖矰  
      
     if(check_hit_wall()){ //変琩琌疾夣  
        break; 
     } 
      
     if(check_hit_snake()){ //変琩琌疾劖矰セō  1痷 0安  
        break;                       
     }                 
} 
 
clrscr(); 
gotoxy(10,10); 
printf("村壼匔!!!,眤だ囒琌%dだ,q置厈祘Α,r穝厈﹍\n",score); 
 
quit=getch(); 
while(1){ 
       
if(quit==0x71 || quit==0x51){ //q  
      break; 
}else if(quit==0x72 || quit==0x52){ //r  
      quit=NULL; 
      playgame();           
}else{ 
    quit=getch(); 
} 
}   
       
  system("exit");    
      
} 
 
 
void init(){ 
      
      
 food_x=0; 
 food_y=0; 
 snake_x=0; 
 snake_y=0; 
 score=0; 
 snake=0; 
 speed=150; 
 add_speed_1=0; 
 add_speed_2=0; 
 add_speed_3=0; 
 add_speed_4=0; 
 w2=Right; 
 w=NULL;      
 newgame(); 
 srand(time(NULL)); //﹍て叝囒销      
      
} 
void randfood(int status){ //叝囒  
      
  if(status==1){ 
     gotoxy(food_x,food_y); 
     printf(" ");            
     food_x=rand() % 55 + 12; //12~66  
     food_y=rand() % 17 + 4;  //4~20 
  } 
     gotoxy(food_x,food_y); 
     printf("@"); 
 
 
        
} 
 
void check_eat_food(){ //娛琌  
      
      
      if(snake_x==food_x && snake_y==food_y){ 
           
        newnode=(NODE *)malloc(sizeof(NODE)); 
        newnode->x=food_x; 
        newnode->y=food_y; 
        newnode->next=first; 
        first=newnode; 
        snake_x=food_x; 
        snake_y=food_y; 
        score+=10; 
        randfood(1); 
      } 
       
      randfood(2); 
      gotoxy(1,1); 
      printf("                                                       "); 
      gotoxy(1,1); 
      printf("          だ囒:%d だ,僣:%d,硉:%d",score,snake,speed);    
      
} 
 
int check_key_down(){//変琩妦よ  
 
   temp_w2=w2; 
  //char w;   
  if(kbhit()){ 
        
     w=getch(); 
                               
  } 
   
   
  if(w==0xffffffe0){ //E0 
      w=NULL;         
      w2=getch(); 
       
      if(w2==Right && temp_w2==Left){ //娛劖矰┕オ兒,ぃ妦  
                 w2=temp_w2;       
                  
        }else if(w2==Left && temp_w2==Right){ 
                 w2=temp_w2; 
                  
        }else if(w2==Up && temp_w2==Down){ 
                w2=temp_w2; 
                  
        }else if(w2==Down && temp_w2==Up){ 
                w2=temp_w2; 
                  
        } 
       
  } 
   
         
      switch(w2){ 
        case Up: 
          snake_y--; 
          break; 
        case Down: 
          snake_y++; 
          break; 
        case Left: 
          snake_x--; 
          break; 
        case Right: 
          snake_x++; 
      }      
     
} 
 
 
 
void print_snake(){ //娮對呺娀,劖矰X,Y  
      
  current=first; 
    snake=0; 
     while(current !=NULL){ 
        gotoxy(current->x,current->y); 
        printf("#"); 
        if(current==first){ 
           snake_x=current->x; 
           snake_y=current->y; 
        } 
     
        current=current->next; 
        snake++;                    
     }      
      
} 
 
void move_snake(){ 
     delay(speed); 
     clear_snake();//睲埃劖矰匄  
      int temp_x,temp_y,temp_n_x,temp_n_y; 
     current=first; 
     while(current != NULL){    
             
         if(current==first){  //–儶呺娀X,Y簿儶呺娀,┮呇┕玡簿凁  
            temp_x=current->x; 
            temp_y=current->y; 
            current->x=snake_x; 
            current->y=snake_y; 
         }else{ 
            temp_n_x=current->x; 
            temp_n_y=current->y; 
            current->x=temp_x; 
            current->y=temp_y; 
            temp_x=temp_n_x; 
            temp_y=temp_n_y; 
         } 
          
         current=current->next; 
                                   
                  
     } 
      
} 
 
 
void checkspeed(){ //変琩硉10,20,25,30呇硉  
      
      
   if(snake==10){ 
          if(add_speed_1==0)    
             speed=120; 
            
           add_speed_1=1;   
           
     }else if(snake==20){ 
       if(add_speed_2==0)    
          speed=90; 
           
       add_speed_2=1; 
     }else if(snake==25){ 
       if(add_speed_3==0)       
          speed=60; 
       add_speed_3=1; 
     }else if(snake==30){ 
        if(add_speed_4==0) 
          speed=30; 
        add_speed_4=1; 
     }          
      
} 
 
 
 
 
 
 
void printbackground(){ //璉春  
      
  int i; 
  for(i=1;i<=60;i++){ 
                     
     gotoxy(9+i,2); 
     printf("="); 
     gotoxy(9+i,23); 
     printf("=");              
  } 
        
  for(i=1;i<=22;i++){ 
                         
     gotoxy(10,1+i); 
     printf("|"); 
     gotoxy(70,1+i); 
     printf("|");                 
  } 
   
   
      
} 
 
void clear_snake(){ //睲埃匄劖矰  
      
    current=first; 
     while(current !=NULL){ 
        gotoxy(current->x,current->y); 
        printf(" ");  
        current=current->next;                    
     }      
      
} 
 
int check_hit_wall(){ //贝娛琌疾夣  
   
  int i;     
  int wall_x[2]={10,70}; //オ   
  int wall_y[2]={2,23};  //   
  // 
  for(i=0;i<2;i++){ 
                      
     if(snake_x==wall_x[i] || snake_y==wall_y[i]) 
        return 1;            
  } 
   
  return 0;  
      
} 
 
int check_hit_snake(){ //娛材儶呺娀X,Y琌僶劖矰セō  
     
    current=first; 
    current=current->next; 
     while(current !=NULL){ 
          
        if(snake_x==current->x && snake_y==current->y){ 
           return 1; 
        } 
       
        current=current->next;                    
     }  
      
     return 0;     
     
} 
 
//void freelist(NODE *first){ 
      
 //NODE *current,*temp; 
  
// current=first; 
  
// while(current !=NULL){ 
                
 // temp=current; 
 // current=current->next; 
 // free(temp); 
   
//}               
    
//}