import { SAMPLERATE } from '../environment';

export class SquareOscillator {
    position: u32 = 0;
    frequency: f32 = 0;

    next(): f32 {
      if(this.frequency > 0) {
        let ret: f32 = this.position as f32 > 0x8000 ? 0.5 : -0.5;
        this.position = (((this.position as f32) + (this.frequency/SAMPLERATE)
                            * 0x10000 as f32) as u32) & 0xffff;
        
        
        return ret;
      } else {
        return 0;
      }
    }
}