Mijn bubble schiet spel

#include <allegro.h>
#include <cstdlib>
#include <ctime>
#include "collegro.c"
void init();
void deinit();
void keys();
void checkcolission();
void drawfield(),drawrij(int d), drawhaai(),shoot(),drawbullet();
void drawinfo();
BITMAP *eend;
BITMAP *eend2;
BITMAP *eend3;
BITMAP *water;
BITMAP *buffer;
BITMAP *haai;
BITMAP *bullet;
bool justfired,bulletfired,eendisdood,haaiisdood;
int bulletmode=2, mode = 2 ;  //Rechts = 1; links = 2;
int x = 320;
int y = 50 ;
int score;
int xhaai=-100,yhaai=50,xbullet=320,ybullet=50;
int main() {
 	init();
eend =  load_bitmap("eend.bmp",NULL);
        eend2 =  load_bitmap("eend2.bmp",NULL);
        eend3 = load_bitmap("eend3.bmp",NULL);
		buffer = create_bitmap(640,480);
		draw_sprite(buffer,eend,x,y);
	while (!key[KEY_ESC]) {
          drawfield();
          drawbullet();
        keys();
        
        drawhaai();
        checkcolission();
        drawinfo();
        if(eendisdood==true)
        draw_sprite(buffer,eend3,x,y);
        else{
        if (mode == 1)
        draw_sprite(buffer,eend,x,y);
        else
        draw_sprite(buffer,eend2,x,y);
        }
    blit(buffer, screen, 0,0,0,0,640,480);
	}
	deinit();
	return 0;
}
END_OF_MAIN()

void init() {
	int depth, res;
	allegro_init();
	depth = desktop_color_depth();
	if (depth == 0) depth = 32;
	set_color_depth(depth);
	res = set_gfx_mode(GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0);
	if (res != 0) {
		allegro_message(allegro_error);
		exit(-1);
	}

	install_timer();
	install_keyboard();
	install_mouse();
	/* add other initializations here */
}

void deinit() {
	clear_keybuf();
	/* add other deinitializations here */
}
void keys(){
     if(eendisdood == false){
     if(key[KEY_SPACE])
     justfired=true;
     //bulletfired=true;
     shoot();
     if(key[KEY_LEFT]){         
		mode=2;
		rest(2);
		x--;
		if(bulletfired == false){
		xbullet=x;
		ybullet = y;
		bulletmode=2;
    }
    }
    if(key[KEY_RIGHT]){
		mode=1;
		rest(2);
		x++;
		if(bulletfired == false){
		xbullet=x;
		ybullet = y;
		bulletmode=1;
    }
    }
    if(key[KEY_UP]){
                    rest(2);
    y--;
    if(bulletfired == false){
    ybullet = y;
    xbullet=x;
}
}
    if(key[KEY_DOWN]){
                      rest(2);
    y++;
    if(bulletfired == false){
    ybullet = y;
    xbullet=x;
}
    
}
}   
}
void drawfield(){
     int c=0;
     for(int a = 0; a != 20;a++){
     drawrij(c);
     c=c+30;
     }               
}
void drawrij(int d){
     int x1=0, y1=0;
     water = load_bitmap("water.bmp",NULL);
    for(int a = 0; a != 30; a++){
     draw_sprite(buffer,water,x1,d);
     x1=x1+30;
     }
     
     }
void drawhaai(){
     
     srand(time(0));
     if(xhaai >=800){
     yhaai=rand()%600+40;
     xhaai=-100;
     }
     if(haaiisdood==true){
         yhaai=rand()%640;
     xhaai=-100;
     haaiisdood=false;
     rest(10);
     }     
     xhaai++;  
     rest(3);          
     haai = load_bitmap("haai.bmp",NULL);
     draw_sprite(buffer,haai,xhaai,yhaai);
     
     }
     void shoot(){
          if((xbullet <=20)||(xbullet>=620)||(haaiisdood==true)){
          drawbullet();
          justfired=false;
          bulletfired=false;
          }
          }
void drawbullet(){
     if(justfired == true){
bullet = load_bitmap("bubbel.bmp",NULL);
          draw_sprite(buffer,bullet,xbullet,ybullet);
          bulletfired=true;
          if(bulletmode == 2)
          xbullet--;
          else
          xbullet++;
                             
          }
          }
void checkcolission(){
     if((clgo_collide_bitmaps(eend,x,y,haai,xhaai,yhaai))||(clgo_collide_bitmaps(eend2,x,y,haai,xhaai,yhaai)))
     eendisdood = true;
     if(bulletfired == true){
     if(clgo_collide_bitmaps(haai,xhaai,yhaai,bullet,xbullet,ybullet)){
     haaiisdood=true;
     score++;
     xbullet=x;
     ybullet=y;
     }
     }
     }
void drawinfo(){
     textprintf(buffer,font,100,460,makecol(255,255,255),"Controls: Pijltjestoetsen = beweging, Spatiebalk = schieten");
     textprintf(buffer,font,100,470,makecol(255,255,255),"Score: %i",score);
     }