local audioutil = require "audioutil"
local soundeffectsutil = require "soundeffectsutil"
function data()
return {
	tracks = {
		{ name = "vehicle/icn/stand_idle.wav", refDist = 25.0 },
		{ name = "vehicle/icn/start.wav", refDist = 25.0 },
		{ name = "vehicle/icn/gas.wav", refDist = 25.0 },
		{ name = "environment/_no-license_train-wheels-ringing-curve.wav", refDist = 25.0 },
		{ name = "vehicle/train_electric_modern/_brakes.wav", refDist = 25.0 }
	},
	events = {
		clacks = {
			names = {
				"vehicle/clack/modern/part_1.wav",
				"vehicle/clack/modern/part_2.wav",
				"vehicle/clack/modern/part_3.wav",
				"vehicle/clack/modern/part_4.wav",
				"vehicle/clack/modern/part_5.wav",
				"vehicle/clack/modern/part_6.wav",
				"vehicle/clack/modern/part_7.wav",
				"vehicle/clack/modern/part_8.wav",
				"vehicle/clack/modern/part_9.wav",
				"vehicle/clack/modern/part_10.wav"
			},
			refDist = 15.0
		},
		horn = { names = { "vehicle/icn/icn_horn.wav" }, refDist = 50.0 },
		openDoors = { names = { "vehicle/icn/door_open.wav" }, refDist = 5.0 },	
		closeDoors = { names = { "vehicle/icn/door_close.wav" }, refDist = 5.0 }
	},

	updateFn = function (input)
		local axleRefWeight = 15.9
		
		return {
			tracks = {
				{ 
					gain = soundeffectsutil.sampleCurve({ { 0, 1. }, { 0.7, 0.5 }, { 1.0, 0.5 } }, input.speed01),
					pitch = soundeffectsutil.sampleCurve({ { 0.0, 1.0 }, { 1, 1.0 } }, input.speed01)
				},
				{ 
					gain = soundeffectsutil.sampleCurve({ { 0, .0 }, { .01, 0.08}, { .05, 0.2 }, { .15, 0.2 }, { .3, 0.0 } }, input.speed01),
					pitch = soundeffectsutil.sampleCurve({ { 0.0, 0.7 },{ 0.07, 1 }, { 1.00, 1.0 } }, input.speed01)
				},
				{ 
					gain = soundeffectsutil.sampleCurve({ { .0, .0 }, { .15, 0.0 }, { .3, 0.2 },{ .5, 0.1 }, { 1.0, 0.05 } }, input.speed01),
					pitch = soundeffectsutil.sampleCurve({ { 0.0, 0.2 },{ 0.2, 0.5 }, { 1.00, 1.0 } }, input.speed01)
				},
				{ 
					gain = soundeffectsutil.sampleCurve({ { .0, .0 }, { .30, .0 }, { .50, 0.2 }, { 1.0, 0.7 } }, input.speed01),
					pitch = soundeffectsutil.sampleCurve({ { .0, .0 }, { .32, 0.95 }, { 1.0, 1.3 } }, input.speed01)
				},
				{ 
					gain = soundeffectsutil.sampleCurve({ { .0, .0 }, { .32, 0.1 }, { .52, 0.3 }, { .64, 0.2 }, { 1.0, 0.2 } }, input.speed01),
					pitch = 1.0
				},
				soundeffectsutil.squeal(input.speed, input.sideForce, input.maxSideForce),
				soundeffectsutil.brake(input.speed, input.brakeDecel, 0.5)
			},
			events = {
				clacks = soundeffectsutil.clacks(input.speed, input.weight, input.numAxles, axleRefWeight, input.gameSpeedUp),
				horn = { gain = 1.0, pitch = 1.0 },
				openDoors = { gain = 1.0, pitch = 1.0 },
				closeDoors = { gain = 1.0, pitch = 1.0 }
			}
		}
	end
}
end