Question

我在基本的移动引擎上使用ActionScript3.0。当我尝试测试我的代码时，我收到此错误：

MovementClass.as, Line 44, Column 22    1084: Syntax error: expecting rightparen before colon.

我得到以下代码的第44,52,60和68行;这些是读取 heroGoing＆lt; 方向＆gt;（e：TimerEvent）;

的行

package  {
import flash.display.*;
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
import flash.utils.Timer;
import flash.events.TimerEvent;
import flash.events.TimerEvent;


public class MovementClass extends MovieClip {
    var reference:Reference = new Reference();
    var hero:Hero = new Hero();
    var enemy:Enemy = new Enemy();
    var wall:Wall = new Wall();

    //Timer
    var moveTimer:Timer = new Timer(25, 10)

    //Booleans
    var movingHeroRight:Boolean = false;
    var movingHeroLeft:Boolean = false;
    var movingHeroUp:Boolean = false;
    var movingHeroDown:Boolean = false;

    public function MovementClass() {
        hero.x = stage.stageWidth * .5;
        hero.y = stage.stageHeight * .5;
        addChild(hero);
        startEngine();
    }

    public function startEngine():void {
        stage.addEventListener(KeyboardEvent.KEY_DOWN, movementHandler);
        stage.addEventListener(KeyboardEvent.KEY_UP, stopHandler);
    }

    public function movementHandler(keyDown:KeyboardEvent):void {
        if (keyDown.keyCode == 39) {
            if (movingHeroLeft == true, movingHeroUp == true, movingHeroDown == true) {
                return;
            } else {
                heroGoingRight(e:TimerEvent);
                movingHeroRight = true;
                moveTimer.start;
            }
        } else if (keyDown.keyCode == 37) {
            if (movingHeroRight == true, movingHeroUp == true, movingHeroDown == true) {
                return;
            } else {
                heroGoingLeft(e:TimerEvent);
                movingHeroLeft = true;
                moveTimer.start;
            }
        } else if (keyDown.keyCode == 38) {
            if (movingHeroLeft == true, movingHeroRight == true, movingHeroDown == true) {
                return;
            } else {
                heroGoingUp(e:TimerEvent);
                movingHeroUp = true;
                moveTimer.start;
            }
        } else if (keyDown.keyCode == 40) {
            if (movingHeroLeft == true, movingHeroUp == true, movingHeroRight == true) {
                return;
            } else {
                heroGoingDown(e:TimerEvent);
                movingHeroDown = true;
                moveTimer.start;
            }
        }
        //moveTimer.start();
    }

    function heroGoingUp(eUp:TimerEvent):void {
        if (movingHeroUp == true) {
            reference.y += 5;
        }
    }

    function heroGoingDown(eDown:TimerEvent):void {
        if (movingHeroDown == true) {
            reference.y -= 5;
        }
    }

    function heroGoingLeft(eLeft:TimerEvent):void {
        if (movingHeroLeft == true) {
            reference.x += 5;
        }
    }

    function heroGoingRight(eRight:TimerEvent):void {
        if (movingHeroRight == true) {
            reference.x -= 5;
        }
    }

    public function stopHandler(keyUp:KeyboardEvent):void {
        if (movingHeroRight == true) {
            movingHeroRight = false;
        } else if (movingHeroLeft == true) {
            movingHeroLeft = false;
        } else if (movingHeroUp == true) {
            movingHeroUp = false;
        } else if (movingHeroDown == true) {
            movingHeroDown = false;
        }
    }
}
}

我做错了什么？

Answer 1

问题在于第一次 heroMoving 调用：

            heroGoingRight(e:TimerEvent);

编译器认为您正在尝试声明一个变量 in situ 。适当地声明 e：TimerEvent ，之前使用它，你应该没问题。

语法错误：在冒号之前期待rightparen

1 个答案: