module main

struct Abc {
pub mut:
	x     int
	y     int
	angle int
}

fn s_adjustsoundparams(listener &Abc, source &Abc, vol &int, sep &int) int {
	approx_dist := 0
	adx := 0
	ady := 0
	angle := 0
	adx = C.abs(listener.x - source.x)
	ady = C.abs(listener.y - source.y)
	approx_dist = adx + ady - ((if adx < ady { adx } else { ady }) >> 1)
	if gamemap != 8 && approx_dist > (1200 * (1 << 16)) {
		return 0
	}
	angle = r_pointtoangle2(listener.x, listener.y, source.x, source.y)
	if angle > listener.angle {
		angle = angle - listener.angle
	} else {
		angle = angle + (4294967295 - listener.angle)
	}
	angle >>= 19
	*sep = 128 - (fixedmul((96 * (1 << 16)), finesine[angle]) >> 16)
	if approx_dist < (200 * (1 << 16)) {
		*vol = snd_SfxVolume
	} else if gamemap == 8 {
		if approx_dist > (1200 * (1 << 16)) {
			approx_dist = (1200 * (1 << 16))
		}
		*vol = 15 + ((snd_SfxVolume - 15) * (((1200 * (1 << 16)) -
			approx_dist) >> 16)) / (((1200 * (1 << 16)) - (200 * (1 << 16))) >> 16)
	} else {
		*vol = (snd_SfxVolume * (((1200 * (1 << 16)) - approx_dist) >> 16)) / (((1200 * (1 << 16)) - (200 * (1 << 16))) >> 16)
	}
	return *vol > 0
}