From: Fleminge <fleminge AT agri DOT huji DOT ac DOT il>
Newsgroups: comp.os.msdos.djgpp
Subject: strange parse error
Date: Mon, 03 Nov 1997 17:05:28 -0800
Organization: The hebrew University of Jerusalem
Lines: 181
Message-ID: <345E74D8.6D04B23B@agri.huji.ac.il>
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To: djgpp AT delorie DOT com
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  I am writing a game using djgpp,allegro and rhide. When I write:
struct ball{int x,y;} i get a "parse error before {". if i change the
name from "ball" to somthing else, like "ball_" this problem disappers,
but i get a "parse error before ."when i try to acces the variables in
the "ball_" struct. can someone please help me out?
i am attaching the file to this meesage.

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#include "gameart.h"
#include <allegro.h>
/*FUNCTION DECLERATION*/
void initialize_phase();
void erase_everything();
void draw_everything();
void move_bar();
void move_ball();
void play_game();
typedef struct {float x,y,x_vel,y_vel,angle; int dead; } ball;
typedef struct {int x_pos,hit_pos; } bar;
volatile int counter=0;
void time_count(...)
 {
   counter=0;
 }
 END_OF_FUNCTION(time_count);
BITMAP *buffer=create_bitmap(640,480);
DATAFILE *art=load_datafile("gameart.dat");
main(void)
{
 /* INITIALIZATION  */

 allegro_init();
 install_timer();
 install_keyboard();
 /* end of initalization */


 /* STRUCTURES & VARIABLES */

 int y;

 int selection=0;
 y=222+selection*68;

 set_gfx_mode(GFX_AUTODETECT,640,480,0,0);
 set_pallete(black_pallete);
 blit((BITMAP *)art[main_menu].dat,buffer,0,0,0,0,640,480);
 draw_compiled_sprite(buffer,(COMPILED_SPRITE *)art[ball].dat,80,y);
 blit(buffer,screen,0,0,0,0,640,480);
 fade_in((PALLETE)art[gamepal].dat,10);


 LOCK_VARIABLE(counter);
 LOCK_FUNCTION(time_count);


 /**********************************************************************/
 install_int(time_count,120);
 while (!(key[KEY_ESC])) /* MAIN PROGRAM LOOP */
  {
  blit((BITMAP *)art[main_menu].dat,buffer,80,y,80,y,15,15);   /*erase ball*/
  y=222+selection*68;
  if (key[KEY_DOWN])     /* CHANGE MENU SELECTION */
    {if (selection!=3)
      selection++;
    else
      selection=0; }

  if (key[KEY_UP])
    {if (selection!=0)
      selection--;
    else
      selection=3; }

  draw_compiled_sprite(buffer,(COMPILED_SPRITE *)art[ball].dat,80,y);      /*draw the ball*/
  blit(buffer,screen,80,222,80,222,15,219);/*blit to screen*/
  counter++;
  while (counter!=0){};
  if (key[KEY_ENTER])
    {
    fade_out(10);
    /*if (selection==0)
       play_game();    /* play the game */

    /*if (selection==1)
       set_options();  /* go to the options screen*/

    /*if (selection==2)
       hall();         /* go to hall of fame */

      if (selection==3)
       break;
    }        /* END OF CONDITION */
} /* END OF THE PROGRAM LOOP */
return 0;
} /* END OF MAIN*/

void play_game()
{
initialize_phase();
int blocks[12][10];
int score=0;
draw_everything();
while (!key[KEY_SPACE]) {};
erase_everything();
move_bar();
move_ball();
draw_everything();
} /*end of function play_game*/


void draw_everything()
{
 /*draw ball*/
 draw_compiled_sprite(buffer,(COMPILED_SPRITE *)art[ball].dat,(int)ball.x,(int)ball.y);
                                                                                       /*draw bar*/
 draw_compiled_sprite(buffer,(COMPILED_SPRITE *)art[bar].dat,bar.x_pos,450);
}

void move_ball()
{
 if (ball.y>=435)                          /*check if ball hit bar*/
  {
  bar.hit_pos=(int)(ball.x-bar.x_pos);
  if ((bar.hit_pos<0) || (bar.hit_pos>90))
   ball.dead=true;
  else
   ball.angle=405-angle-bar.hit_pos;
  }

 if ((ball.x==0) || (ball.x>624))        /*if ball hits the wall*/
  ball.angle=180-ball.angle;


 if (ball.y==0)       /*if ball hits the top of the screen*/
  ball.angle-=360;

 if (ball.angle<0) ball.angle+=360;
 if (ball.angle>360) ball.angle-=360;
 ball.x_vel=cos(ball.angle);
 ball.y_vel=sin(ball.angle);

 ball.x+=x_vel;
 ball.y+=y_vel;
} /* end of function move_ball() */

void move_bar()
 {
 if (key[KEY_LEFT]) bar.x_pos--;
 if (key[KEY_RIGHT]) bar.x_pos++;
 } /*end of function move_bar() */

void erase_everything()
{
 /* erase the ball*/
 blit((BITMAP *)art[back],buffer,ball.x,ball.y,15,15);

 /*erase the bar*/
 blit((BITMAP *)art[back],buffer,bar.x_pos,450,bar.x_pos,450,64,20);

} /*end of erase_everything*/
void initialize_phase()
{ int i,j;
  bar.x_pos=288;
  ball.x=312;
  ball.y=435;
  ball.angle=270;
  ball.dead=false;
}

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