/datum/component/footstep
	var/steps = 0
	var/volume
	var/e_range

/datum/component/footstep/Initialize(volume_ = 0.5, e_range_ = -1)
	if(!isliving(parent))
		return COMPONENT_INCOMPATIBLE
	volume = volume_
	e_range = e_range_
	RegisterSignal(parent, list(COMSIG_MOVABLE_MOVED), .proc/play_footstep)

/datum/component/footstep/proc/play_footstep()
	var/turf/open/T = get_turf(parent)
	if(!istype(T))
		return
	var/mob/living/LM = parent
	var/v = volume
	var/e = e_range
	if(!T.footstep || LM.lying || !LM.canmove || LM.resting || LM.buckled || LM.throwing || LM.movement_type & (VENTCRAWLING | FLYING))
		return
	if(iscarbon(LM))
		var/mob/living/carbon/C = LM
		if(!C.get_bodypart(BODY_ZONE_L_LEG) && !C.get_bodypart(BODY_ZONE_R_LEG))
			return
		if(ishuman(C) && C.m_intent == MOVE_INTENT_WALK)
			v /= 2
			e -= 5
	steps++
	if(steps >= 3)
		steps = 0
	else
		return
	if(prob(80) && !LM.has_gravity(T)) // don't need to step as often when you hop around
		return
	playsound(T, pick(GLOB.footstep[T.footstep][1]),
		GLOB.footstep[T.footstep][2] * v,
		TRUE,
		GLOB.footstep[T.footstep][3] + e)