Gameboy Development Forum

This is my first test to play wave sounds in the background for GBDK.

The function included in gbdk stops all other tasks untill it finishes, so I figured out a way to use it without stopping the program.

if (play == 1){
    if (byte > 934) {byte = 0; play = 0;}
    play_sample((unsigned char *) &boing+(byte), 1);
    byte+=16;
}

It will play a 16 byte chunk of the wave each loop, The (unsigned char *) & makes possible to advance in the array to play the next part.


Then you have to use it wothout any delay or wait_vbl_done();, so you'll have to add an VBL function to time the rest ot the program.


It would be easy to create an asm function to do this using gbdk source, But I'm not an ASM programmer.


Here is the GBDK sample rom and source: Sample Player for GBDK

Last edited by Mills (2016-12-02 16:28:59)