var soundFiles = ["C2.wav", "D2.wav", "E2.wav", "F2.wav", "G2.wav", "A2.wav", "B2.wav", "C3.wav"];
var diffuseFile = "http://mpassets.highfidelity.com/3fd92e5e-93cf-4bc1-b2f1-c6bae5629814-v1/xylotex_bar";
var center = MyAvatar.position;
var fwd = {x:0, y:0, z:-1};

var xyloFramePos = Vec3.sum(center, Vec3.multiply(fwd, 0.8));
var xyloFrameID = Entities.addEntity( {
	name: "Xylophone",
		type: "Model",
	 	modelURL: "http://mpassets.highfidelity.com/3fd92e5e-93cf-4bc1-b2f1-c6bae5629814-v1/xylophoneFrameWithWave.fbx",
		position: xyloFramePos,
		rotation: Quat.fromVec3Radians({x:0, y:Math.PI, z:0}),
		shapeType: "static-mesh",
});

center.y += (0.45); //key Y offset from frame
var keyPos;
for (i=1, len=soundFiles.length; i<=len; i++) {

	keyRot = Quat.fromVec3Radians({x:0, y:(0.9 - (i*0.2)), z:0});
	keyPos = Vec3.sum(center, Vec3.multiplyQbyV(keyRot, fwd));

	var ud = {
		soundFile: soundFiles[i-1]
	};

	var td = {
		"file4": (diffuseFile + i + ".png"), 
		"file5": (diffuseFile + "_black.png")
	};

	var keyID = Entities.addEntity( {
		name: ("XyloKey" + i),
		type: "Model",
	 	modelURL: "http://mpassets.highfidelity.com/3fd92e5e-93cf-4bc1-b2f1-c6bae5629814-v1/xyloKey_2_a_e.fbx",
		position: keyPos,
		rotation: keyRot,
		shapeType: "static-mesh",
	 	script: "http://mpassets.highfidelity.com/3fd92e5e-93cf-4bc1-b2f1-c6bae5629814-v1/xylophoneKey.js",
	 	textures: JSON.stringify(td),
		userData: JSON.stringify(ud),
		parentID: xyloFrameID,
	} );
};

//if rezzed on/above something, wait until after model has loaded so you can read its dimensions then move object on to that surface.
var pickRay = {origin: center, direction: {x:0, y:-1, z:0}};
var intersection = Entities.findRayIntersection(pickRay, true);
if (intersection.intersects && (intersection.distance < 10)) {
	var surfaceY = intersection.intersection.y;
	Script.setTimeout( function() {
		//should add loop to check for fbx loaded instead of delay
		var xyloDimensions = Entities.getEntityProperties(xyloFrameID, ["dimensions"]).dimensions;
		xyloFramePos.y = surfaceY + (xyloDimensions.y/2);
		Entities.editEntity(xyloFrameID, {position: xyloFramePos});
		rezMallets();
	}, 2000); //timeout (ms)
}
else {
	print("No surface detected.");
	rezMallets();
}

function rezMallets() {
	var malletProps = {
		name: "Xylophone Mallet",
		type: "Model",
		modelURL: "http://mpassets.highfidelity.com/3fd92e5e-93cf-4bc1-b2f1-c6bae5629814-v1/Mallet2-2pc.fbx",
		collidesWith: "static,dynamic,kinematic,",
		collisionMask: 7,
		collisionsWillMove: 1,
		dynamic: 1,
		damping: 1,
		angularDamping: 1,
		shapeType: "simple-compound",
		userData: "{\"grabbableKey\":{\"grabbable\":true}}"
	};

	malletProps.position = Vec3.sum(xyloFramePos, {x: 0.1, y: 0.55, z: 0});
	malletProps.rotation = Quat.fromVec3Radians({x:0, y:Math.PI - 0.1, z:0}),
	Entities.addEntity(malletProps);

	malletProps.position = Vec3.sum(xyloFramePos, {x: -0.1, y: 0.55, z: 0});
	malletProps.rotation = Quat.fromVec3Radians({x:0, y:Math.PI + 0.1, z:0}),
	Entities.addEntity(malletProps);
	Script.stop();
};