// Makes the selected GameObject follow the animation curve.
//
// Usage: Generate the curves for X,Y and Z axis of your desired GameObject
// Select an Object and click Generate Curve.
// Press Play and see your object moving.


class EditorGUICurveField extends EditorWindow {

var curveX : AnimationCurve = AnimationCurve.Linear(0,0,10,10);
var curveY : AnimationCurve = AnimationCurve.Linear(0,0,10,10);
var curveZ : AnimationCurve = AnimationCurve.Linear(0,0,10,10);

@MenuItem("Examples/Create Curve For Object")
static function Init() {
var window = GetWindow(EditorGUICurveField);
window.position = Rect(0,0,200,100);
window.Show();
}

function OnGUI() {
curveX = EditorGUI.CurveField(
Rect(3,3,position.width-6,15),
"Animation on X", curveX);
curveY = EditorGUI.CurveField(
Rect(3,20,position.width-6,15),
"Animation on Y", curveY);
curveZ = EditorGUI.CurveField(
Rect(3,45,position.width-6,15),
"Animation on Z", curveZ);

if(GUI.Button(Rect(3,60,position.width-6,30),"Generate Curve"))
AddCurveToSelectedGameObject();
}

function AddCurveToSelectedGameObject() {
if(Selection.activeGameObject) {
var comp : FollowAnimationCurve =
Selection.activeGameObject.AddComponent(FollowAnimationCurve);
comp.SetCurves(curveX, curveY, curveZ);
} else {
Debug.LogError("No Game Object selected for adding an animation curve");
}
}
}

// FollowAnimationCurve.js
// This script has to go outside of the Editor Folder.

var curveX : AnimationCurve;
var curveY : AnimationCurve;
var curveZ : AnimationCurve;

function SetCurves(xC : AnimationCurve, yC : AnimationCurve, zC : AnimationCurve) {
curveX = xC;
curveY = yC;
curveZ = zC;
}
function Update() {
transform.position = Vector3(curveX.Evaluate(Time.time),
curveY.Evaluate(Time.time),
curveZ.Evaluate(Time.time));
}