Keyframe.inTangent 内切线

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	public AnimationCurve anim = new AnimationCurve();
	void Start() {
		Keyframe[] ks = new Keyframe[3];
		ks[0] = new Keyframe(0, 0);
		ks[0].inTangent = 0;
		ks[1] = new Keyframe(4, 0);
		ks[1].inTangent = 45;
		ks[2] = new Keyframe(8, 0);
		ks[2].inTangent = 90;
		anim = new AnimationCurve(ks);
	}
	void Update() {
		transform.position = new Vector3(Time.time, anim.Evaluate(Time.time), 0);
	}
}

// Make an object follow a line among the X axis
//创建一个物体跟随一条线沿x轴
// Notice how the tangents modify the behaviour of the animation
//请注意切线怎样修改动画行为

var anim : AnimationCurve = new AnimationCurve();

function Start() {
	var ks : Keyframe[] = new Keyframe[3];
	ks[0] = Keyframe(0, 0);
	ks[0].inTangent = 0;
	ks[1] = Keyframe(4, 0);
	ks[1].inTangent = 45;
	ks[2] = Keyframe(8, 0);
	ks[2].inTangent = 90;
	anim = AnimationCurve(ks);
}

function Update() {
	transform.position = Vector3(Time.time,anim.Evaluate(Time.time),0);
}