语句中的表达式只能在产生副作用时执行

Question

我在统一使用这段代码时遇到了一个相当不寻常的问题，我一直收到错误 "Expressions in statements must only be executed for their side-effects"，我在网上四处寻找问题，但所有的答案都不一样，那一行给出的错误是 (47,44) 这是 AnimObj.GetComponent.<Animation>().Play 在此先感谢您的帮助 -_-;

var CrossObject : GameObject;
var MechanicsObject : GameObject;
var ClipCount : int;
var ReserveCount : int;
var ReloadAvailable : int;
var AnimObj : GameObject;
var ScriptObj : GameObject;


function Update () {
    ClipCount = GlobalAmmo.LoadedAmmo;
    ReserveCount = GlobalAmmo.CurrentAmmo;

    if (ReserveCount == 0) {
        ReloadAvailable = 0;
    } else {
        ReloadAvailable = 10 - ClipCount;
    }

    if (Input.GetButtonDown("Reload")) {
        if (ReloadAvailable >=1) {
            if (ReserveCount <= ReloadAvailable) {
                GlobalAmmo.LoadedAmmo += ReserveCount;
                GlobalAmmo.CurrentAmmo -= ReserveCount;
                ActionReload();
            } else {
                GlobalAmmo.LoadedAmmo += ReloadAvailable;
                GlobalAmmo.CurrentAmmo -= ReloadAvailable;
                ActionReload();
            }
        }
        EnableScripts();
    }
}

function EnableScripts () {
    yield WaitForSeconds(1);
    ScriptObj.GetComponent("Fire").enabled=true;
    CrossObject.SetActive(true);
    MechanicsObject.SetActive(true);
}

function ActionReload () {
    ScriptObj.GetComponent("Fire").enabled=false;
    CrossObject.SetActive(false);
    MechanicsObject.SetActive(false);
    AnimObj.GetComponent.<Animation>().Play;
}

Answer 1

在Unity中，Animation.Play()是函数而不是变量。您通过在播放结束时不包含 () 来将其作为变量访问。

应该是：

AnimObj.GetComponent.<Animation>().Play();

语句中的表达式只能在产生副作用时执行

Expressions in statements must only be executed for their side effects

unity3d

unityscript