Gameboy Development Forum
Discussion about software development for the old-school Gameboys, ranging from the "Gray brick" to Gameboy Color
(Launched in 2008)
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#1 2024-03-31 19:26:19
- MadCornDog
- New member
- Registered: 2022-07-09
- Posts: 2
Help with delay()
I'm making a game for nes and everythings been working smoothly until now. I'm trying to use the delay() function and I'm getting this error:
Code:
?ASlink-Warning-Undefined Global '_delay' referenced by module 'game'
I have the nes.h file included and my text editor can even find the delay function and its description.
Help please!
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#2 2024-04-01 12:34:34
Re: Help with delay()
I don't use the built in Delay() function, personally. I'll provide you with what I use instead.
Code:
void smartDelay(uint8_t interval, BOOLEAN musicPlaying){ //Delays the game for inverval number of frames by waiting for that frame to fully render before starting the next loop
uint8_t i;
for(i=0; i < interval; i++){
if (musicPlaying == TRUE){
// Frame specific music update, my code has been removed as it wouldn't be useful for NES
}
wait_vbl_done();
}
}It waits a specific number of vertical blank intervals/frames.
Hope this helps.
EDIT: This post was made assuming you're using the experimental NES support for GBDK. If you're using something else, the code above may be able to be adapted, but won't be a drop-in.
Last edited by Ardis (2024-04-01 12:35:43)
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