
busInit()
{
	level.activeBusState = "";
	level.nextBusState = "";
	level.busStates = [];
	registerDefaults();
	thread updateBus(true);
	thread busSaveWait();
	clientscripts\_utility::registerSystem("busCmd", ::busCmdHandler);
}
busSaveWait()
{
	for(;;)
	{
		level waittill("save_restore");
		if(level.nextBusState == "")
			level.nextBusState = level.activeBusState;
		level.activeBusState = "";
		if(level.nextBusState == "")
		{
			busStateDeactivate();
			busStateActivate("slow_on");
		}
		println("resetting bus state to "+level.nextBusState);
		thread updateBus(false);
	}
}
busCmdHandler(clientNum, state, oldState)
{
	if(clientNum != 0)
	{
		return;
	}
	level.nextBusState = state;
	println("bussing debug: got state '"+state+"'");
	level notify("new_bus");
}
setBusState(state)
{
	level.nextBusState = state;
	println("bussing debug: set state '"+state+"'");
	level notify("new_bus");
}
updateBus(forcefade)
{
	level endon("save_restore");
	if(forcefade)
	{
		busStateDeactivate();
		busStateActivate("immediate_off");
		wait(1.0);
		busStateDeactivate();
		busStateActivate("slow_on");
	}
	while(1)
	{
		if(level.activeBusState == level.nextBusState)
		{
			level waittill("new_bus");
		}
		println("got bus change current'"+level.activeBusState+"' next '"+level.nextBusState+"'");
		if(level.activeBusState == level.nextBusState)
		{
			continue;
		}
		assert(isdefined(level.nextBusState));
		assert(isdefined(level.activeBusState));
		busStateDeactivate();
		next = level.nextBusState;
		if(next != "")
		{
			busStateActivate(next);
		}
		level.activeBusState = next;
	}
}
busStateActivate(name)
{
	println("activating bus '"+name+"'");
	state = level.busStates[name];
	if(!isdefined(state))
	{
		println("invalid bus state '"+name+"'");
		return;
	}
	assert(isdefined(state.time));
	keys = getArrayKeys( state.levels );
	assert(isdefined(keys));
}
busStateDeactivate()
{
	println("deactivating bus ");
}
declareBusState(name)
{
	if ( !isdefined( level.busStates ) )
	{
		return;
	}
	level.busDeclareName = name;
	if ( isdefined( level.busStates[name] ) )
	{
		return;
	}
	level.busStates[name] = spawnStruct();
	level.busStates[name].time = 0.5;
	level.busStates[name].levels = [];
}
busVolume(busname, value)
{
	level.busStates[level.busDeclareName].levels[busname] = value;
}
busFadeTime(time)
{
	level.busStates[level.busDeclareName].time = time;
}
busIsIn(bus, names)
{
	for(j=0; j<names.size; j++)
	{
		if(bus == names[j])
		{
			return true;
		}
	}
	return false;
}
busVolumes(names, value)
{
	for(j=0; j<names.size; j++)
	{
		busVolume(names[j], value);
	}
}
busVolumeAll(value)
{
}
argsAsDict(a,b,c,d,e,f,g,h,i)
{
	names = [];
	if(isdefined(a))
		names[0] = a;
	if(isdefined(b))
		names[1] = b;
	if(isdefined(c))
		names[2] = c;
	if(isdefined(d))
		names[3] = d;
	if(isdefined(e))
		names[4] = e;
	if(isdefined(f))
		names[5] = f;
	if(isdefined(g))
		names[6] = g;
	if(isdefined(h))
		names[7] = h;
	if(isdefined(i))
		names[8] = i;
	return names;
}
busVolumesExcept(a,b,c,d,e,f,g,h,i)
{
	args = argsAsDict(a,b,c,d,e,f,g,h,i);
	value = args[args.size-1];
	names = [];
	for(i = 0; i<args.size-1; i++)
	names[i] = args[i];
}
registerDefaults()
{
	declareBusState("map_load");
	busFadeTime(.25);
	busVolumesExcept("music", "ui", 0);
	declareBusState("map_start");
	busFadeTime(1);
	busVolumeAll(1);
	declareBusState("default");
	busFadeTime(.25);
	busVolumeAll(1);
	declareBusState("all_off");
	busVolumeAll(0);
	declareBusState("map_end");
	busFadeTime(2);
	busVolumesExcept("music", "ui", 0);
	declareBusState("last_stand_start");
	busFadeTime(0.1);
	busVolumesExcept("full_vol", "ui", 0.6);
	declareBusState("last_stand_duration");
	busFadeTime(29.9);
	busVolumesExcept("full_vol", "ui", 0.05);
	declareBusState("immediate_off");
	busFadeTime(.01);
	busVolumesExcept( "ui", 0.0);
	declareBusState("slow_on");
	busVolumesExcept( "ui", 1.0);
	busFadeTime(1);
	declareBusState("zombie_death");
	busvolumesexcept("music", 0.0);
	busfadetime(10);
}


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