笔记丨unity itween功能的简单使用

利用itween类中的的MoveTo函数实现人物简单线性移动动画

MoveTo函数原型以及使用说明：（使用键值对作为参数）

/// <summary>
/// Changes a GameObject's position over time to a supplied destination with FULL customization options.
/// </summary>
/// <param name="position">
/// A <see cref="Transform"/> or <see cref="Vector3"/> for a point in space the GameObject will animate to.
/// </param>
/// <param name="path">
/// A <see cref="Transform[]"/> or <see cref="Vector3[]"/> for a list of points to draw a Catmull-Rom through for a curved animation path.
/// </param>
/// <param name="movetopath">
/// A <see cref="System.Boolean"/> for whether to automatically generate a curve from the GameObject's current position to the beginning of the path. True by default.
/// </param>
/// <param name="x">
/// A <see cref="System.Single"/> or <see cref="System.Double"/> for the individual setting of the x axis.
/// </param>
/// <param name="y">
/// A <see cref="System.Single"/> or <see cref="System.Double"/> for the individual setting of the y axis.
/// </param>
/// <param name="z">
/// A <see cref="System.Single"/> or <see cref="System.Double"/> for the individual setting of the z axis.
/// </param>
/// <param name="orienttopath">
/// A <see cref="System.Boolean"/> for whether or not the GameObject will orient to its direction of travel.  False by default.
/// </param>
/// <param name="looktarget">
/// A <see cref="Vector3"/> or A <see cref="Transform"/> for a target the GameObject will look at.
/// </param>
/// <param name="looktime">
/// A <see cref="System.Single"/> or <see cref="System.Double"/> for the time in seconds the object will take to look at either the "looktarget" or "orienttopath".
/// </param>
/// <param name="lookahead">
/// A <see cref="System.Single"/> or <see cref="System.Double"/> for how much of a percentage to look ahead on a path to influence how strict "orientopath" is.
/// </param>
/// <param name="axis">
/// A <see cref="System.String"/>. Restricts rotation to the supplied axis only.
/// </param>
/// <param name="islocal">
/// A <see cref="System.Boolean"/> for whether to animate in world space or relative to the parent. False by default.
/// </param>
/// <param name="time">
/// A <see cref="System.Single"/> or <see cref="System.Double"/> for the time in seconds the animation will take to complete.
/// </param>
/// <param name="speed">
/// A <see cref="System.Single"/> or <see cref="System.Double"/> can be used instead of time to allow animation based on speed
/// </param>
/// <param name="delay">
/// A <see cref="System.Single"/> or <see cref="System.Double"/> for the time in seconds the animation will wait before beginning.
/// </param>
/// <param name="easetype">
/// A <see cref="EaseType"/> or <see cref="System.String"/> for the shape of the easing curve applied to the animation.
/// </param>
/// <param name="looptype">
/// A <see cref="LoopType"/> or <see cref="System.String"/> for the type of loop to apply once the animation has completed.
/// </param>
/// <param name="onstart">
/// A <see cref="System.String"/> for the name of a function to launch at the beginning of the animation.
/// </param>
/// <param name="onstarttarget">
/// A <see cref="GameObject"/> for a reference to the GameObject that holds the "onstart" method.
/// </param>
/// <param name="onstartparams">
/// A <see cref="System.Object"/> for arguments to be sent to the "onstart" method.
/// </param>
/// <param name="onupdate">
/// A <see cref="System.String"/> for the name of a function to launch on every step of the animation.
/// </param>
/// <param name="onupdatetarget">
/// A <see cref="GameObject"/> for a reference to the GameObject that holds the "onupdate" method.
/// </param>
/// <param name="onupdateparams">
/// A <see cref="System.Object"/> for arguments to be sent to the "onupdate" method.
/// </param>
/// <param name="oncomplete">
/// A <see cref="System.String"/> for the name of a function to launch at the end of the animation.
/// </param>
/// <param name="oncompletetarget">
/// A <see cref="GameObject"/> for a reference to the GameObject that holds the "oncomplete" method.
/// </param>
/// <param name="oncompleteparams">
/// A <see cref="System.Object"/> for arguments to be sent to the "oncomplete" method.
/// </param>
public static void MoveTo(GameObject target, Hashtable args){
//clean args:
args = iTween.CleanArgs(args);

//additional property to ensure ConflictCheck can work correctly since Transforms are refrences:
if(args.Contains("position")){
if (args["position"].GetType() == typeof(Transform)) {
Transform transform = (Transform)args["position"];
args["position"]=new Vector3(transform.position.x,transform.position.y,transform.position.z);
args["rotation"]=new Vector3(transform.eulerAngles.x,transform.eulerAngles.y,transform.eulerAngles.z);
args["scale"]=new Vector3(transform.localScale.x,transform.localScale.y,transform.localScale.z);
}
}

在水缸按钮被点击这个函数体内直接调用MoveTo函数实现小男孩的线性移动

关于其中使用到的键值对的说明：

//让小男孩从缸中爬出，坐标是（0.7f,1.68f,2.68f）
//小男孩view组件非常重要，因为通过它可以直接访问挂在view组件的小男孩本身这个游戏物体，也可以访问小男孩这个游戏物体身上的任何一个组件。
//直接调用MoveTo函数，使用四组重要的键值对来控制小男孩的移动动画
//第一个参数是一个游戏物体，表示需要移动的游戏物体
//position-vector3表示移动的目的地
//easetype表示动画类型，iTween.EaseType.linear是一个枚举，表示线性运行，就是匀速播放
//time是表示动画播放持续时间
//oncomplete表示播放动画结束后回调函数MoveOver，这里MoveOver需要自行编写，目的是为了让小男孩爬出后结束爬出动作，切换到下一动作
// "oncomplete", "MoveOver",让动画播放完以后回调MoveOver函数

iTween.MoveTo(xiaoNanHaiView.gameObject, iTween.Hash("position", new Vector3(0.7f, 1.68f, 2.68f), "easetype", iTween.EaseType.linear, "time", 5f, "oncomplete", "MoveOver" ,"oncomplete", "MoveOver",);

动画执行完毕后调用函数MoveOver：

效果：
移动前：

移动后：