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Problems with my allegro game!!

plogen (2)
I have been working om my space invaders game for a while now and now my head is all messed up... I cant get the image fiende to fall down... I have marked the part of the program that i think is not working propely. I have written " //This doesnt work propely". I hope someone of you will see my little misstake (:


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#include <allegro.h>

void init();
void deinit();


volatile bool redraw = true;  
bool update=true;                 
void tick() {
  redraw = true; 
}
END_OF_FUNCTION(tick); 


int main() {
	init();
int x,y;

int skott1x,skott1y,skott1dx,fiendx,fiendy,fiendedx;

bool uppdatera=true;
bool skott1aktiv=false;
bool fiende=true;



   BITMAP *bakgrund = load_bitmap("image2.bmp", NULL);
   BITMAP *gubbe = load_bitmap("bild6.bmp", NULL);
   BITMAP *skott = load_bitmap("klot.bmp", NULL);
   BITMAP *fienden = load_bitmap("fiende2.bmp", NULL);
   
  
   BITMAP *bg = create_bitmap(640,480);
   
   install_int_ex(tick, BPS_TO_TIMER(60));    
            for(x=0; x<20; x++) {
                for(y=0; y<16; y++){
            
    blit(bakgrund, bg, 0,0,x*128,y*128,128,128);
}}
   int yy=0;
   int xx=220;
   
   x=220;
   y=420;
  
  
   skott1dx=8;
   fiendedx=5;
  
 while(!key[KEY_ESC]) {
 
 while(redraw==true) {
                    
              if(key[KEY_LEFT]) {x-=4; uppdatera=true; if (x<0){x=0;}} 
              if(key[KEY_RIGHT]) {x+=4; uppdatera=true; if (x>608) {x=608;}}                              
              if(!skott1aktiv && key[KEY_SPACE]) { skott1aktiv=true; skott1x=x+15; skott1y=y; }
              if(update=true) { fiendx=xx; fiendy=yy; }                                             //This doesnt work propely                               

 redraw=false;
                }  // redraw                     
              
                      
              if (uppdatera){
                             blit(bg,screen, 0,0,0,0,640,480);
                             masked_blit(gubbe, screen, 0,0,x,y,64,64);   
                             uppdatera=false;}
                             
              
              
              if(skott1aktiv) { 
                              masked_blit(skott, screen,0,0,skott1x,skott1y,32,32); 
                              skott1y-=skott1dx;
                              uppdatera=true;
                              if(skott1y>639 || skott1y<0) skott1aktiv=false;  }
                              
               if(update) { 
                              masked_blit(fienden, screen,0,0,fiendx,fiendy,64,64);   
                              fiendy+=fiendedx;                           
                              if(yy>639 || xx<0) update=false; 
                           }                                                                             //This doesnt work propely                                            
                                         
                                      
                                rest(10);
                                }         
        
                      
                      
    destroy_bitmap(fienden);            
    destroy_bitmap(skott);               
    destroy_bitmap(bg);                  
    destroy_bitmap(gubbe);
    destroy_bitmap(bakgrund);
	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 */
}
Last edited on
hanst99 (2869)
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 while(redraw==true) {
                    
              if(key[KEY_LEFT]) {x-=4; uppdatera=true; if (x<0){x=0;}} 
              if(key[KEY_RIGHT]) {x+=4; uppdatera=true; if (x>608) {x=608;}}                              
              if(!skott1aktiv && key[KEY_SPACE]) { skott1aktiv=true; skott1x=x+15; skott1y=y; }
              if(update=true) { fiendx=xx; fiendy=yy; }


You never change xx or yy, so of course fiendx and fiendy don't change either.
Btw: If for some stupid reason this part takes longer than 1/60 seconds, you enter an infinite loop and you're screwed.

Though I gotta say that there's a bunch of things in your code where I don't really see what you were trying to do.
plogen (2)
Ok :S im gonna try to fix this today and thanks for the reply xd
genesys (25)
Infinite loops- they can be really painful,especially when you don't see how to fix them right away.
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