Path: chuka.playstation.co.uk!news
From: "Greg Cook" <gjc53@student.canterbury.ac.nz>
Newsgroups: scee.yaroze.freetalk.english
Subject: Basic beginner questions
Date: Sun, 12 May 2002 10:20:28 +1200
Organization: PlayStation Net Yaroze (SCEE)
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Hi Guys,

well i feel so far behind, i see people releasing invaders and and other
games, and yet im just starting out, anyway can anyone help with this.  The
aim of my code is to start with a blank screen, then fade into the yaroze
sceen logo and then puase for a few seconds and then fade out to black.

Now im still a little confused as to how all the vsyncs ect work, and when
you actually use them, previously i tried a loop like matt wrote in my
previous post and i didnt see any of the fade effects, one second the logo
was there, and then the next it was gone.

Anyways ive posted some of my first yaroze code, can anyone help me with
this. thanks This is just the main loop, the graphics do appear on the
screen no worries.

void main (void)
{
 int vsync = 0;       // vertical screen sync
 int BufferIndex;      // buffer index
 int frame;

 Initialise();

 InitSprite((u_long *)YAROZE_SCENE_ADD);

 BufferIndex = GsGetActiveBuff();  // Returns either 1 or 0,

 GameState = RUNNING;

 while(GameState)      // Check that we are still playing the game
 {
  switch(GameState)
 {
   case RUNNING:       // The Normal GamePlay


   break;

   case TITLESCREEN:       // The TitleScreen

   for(frame=0;frame<=60; frame++)
   {
       sprite.r -= 1;
    sprite.g -= 1;
    sprite.b -= 1;
    VSync(0);
         }
  GameState = RUNNING;
     break;

   case PAUSE:       // Pause Command
  break;

   case GAMEOVER:       // GameOver
     break;


  }



   DealWithPad();

   GsSetWorkBase((PACKET*)packetArea[BufferIndex]);

   GsClearOt(0, 0, &WorldOT[BufferIndex]); //clear out the present OT ready
for drawing

  // now lets set up the image
  GsSortFastSprite(&sprite,&WorldOT[BufferIndex],0);
  // register the sprite in the ordering table


   DrawSync(0);
   vsync = VSync(1);
   VSync(0);  // get the vertical sync interval

   FntPrint("HSYNC: %d\n", vsync);

   ResetGraph(1);

   GsSwapDispBuff();
   GsSortClear(0, 0, 0, &WorldOT[BufferIndex]);
   GsDrawOt(&WorldOT[BufferIndex]); // draw the current off screen buffer to
the screen

   BufferIndex = BufferIndex^1; // change side to 1 or 0
   FntFlush(-1); // print all font calls
 }
 ResetGraph(0);
}