嘿我似乎在从一个类继承Movie-clip时遇到了一些问题,我对as3很新,我已经看了一眼,无法判断我是否做了一些根本错误的事情。
让我告诉你
所以我有一个课我想用来移动一切但玩家精灵。所以除了玩家之外我想要的一切都是为了扩展它。 (或者我假设。)
所以我宣布我的班级
package code {
import flash.display.*;
import flash.events.*;
import flash.ui.*;
import code.Main;
public class everythingContainer extends MovieClip {
功能括号等...... (我只是为了避免错误而导入所有内容)
然后我有一个类我想继承everythingContainer和Movieclip
package code {
import flash.display.*;
import flash.events.*;
import flash.ui.*;
import code.Main;
import code.everythingContainer;
public class Tree1 extends everythingContainer {
然而,当我运行这个时,我得到了错误: 第1行5000:类'code.Tree1'必须是'flash.display.MovieClip'的子类,因为它链接到该类型的库符号。
为什么我收到此错误?
非常感谢任何帮助!
我还没有运行完整的代码,所以可能还有其他明显的错误。
everythingContainer
完整代码:
package code {
import flash.display.*;
import flash.events.*;
import flash.ui.*;
import code.Main;
public class everythingContainer extends MovieClip {
var speed: Number = 4;
var wpressed: Boolean = false;
var apressed: Boolean = false;
var spressed: Boolean = false;
var dpressed: Boolean = false;
var xprev:int = 0;
var yprev:int = 0;
public function everythingContainer() {
// constructor code
trace ('Container started');
if(stage) init();
else
this.addEventListener(Event.ADDED_TO_STAGE, init);
}
function init(eventInfo:Event = null):void
{
if(eventInfo != null)
{
this.removeEventListener(Event.ADDED_TO_STAGE, init);
trace ('Container init removed');
}
// constructor code
stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyPress);
stage.addEventListener(KeyboardEvent.KEY_UP, onKeyRelease);
this.addEventListener( Event.ENTER_FRAME, containerEveryFrame);
}
public function containerEveryFrame (Event): void {
if (stage.contains(Main.player)) {
xprev = this.x;
yprev = this.y;
checkPlayerMovement();
}
}
// check the set keypress variables
public function checkPlayerMovement () : void {
if (wpressed) {
this.y -= this.speed;
}
if (spressed) {
this.y += this.speed;
}
if (apressed){
this.x -= this.speed;
}
if (dpressed) {
this.x += this.speed;
}
}
//assign key presses to variables
public function onKeyPress (event:KeyboardEvent):void {
//up
if (event.keyCode == 87){
wpressed = true;
}
//down
if (event.keyCode == 83) {
spressed = true;
}
//left
if (event.keyCode == 65){
apressed = true;
}
//right
if (event.keyCode == 68) {
dpressed = true;
}
}
//reset key press variables
public function onKeyRelease (event:KeyboardEvent) : void {
//up
if (event.keyCode == 87){
wpressed = false;
}
//down
if (event.keyCode == 83) {
spressed = false;
}
//left
if (event.keyCode == 65){
apressed = false;
}
//right
if (event.keyCode == 68) {
dpressed = false;
}
}
}
}
Main(这里还有一些其他的东西,但是在那一刻我只是想让树与其他班级一起工作。)
package code
{
import flash.display.*;
import flash.events.*;
import flash.ui.*;
import flash.geom.Rectangle;
import flashx.textLayout.container.ContainerController;
public class Main extends MovieClip
{
//public static var main
public static var player:PC;
//public static var firstenemy: WolfEnemy;
public static var MainContainer:everythingContainer;
public function Main()
{
// constructor code
trace('main started');
if (stage)
{
init();
}
else
{
this.addEventListener(Event.ADDED_TO_STAGE, init);
}
}
function init(eventInfo:Event = null):void
{
if (eventInfo != null)
{
this.removeEventListener(Event.ADDED_TO_STAGE, init);
trace('Main init removed');
}
MainContainer = new everythingContainer ;
MainContainer.x = stage.stageWidth / 2;
MainContainer.y = stage.stageHeight / 2;
stage.addChild(MainContainer);
player = new PC();
player.x = stage.stageWidth / 2;
player.y = stage.stageHeight / 2;
stage.addChild(player);
//firstenemy = new WolfEnemy();
//firstenemy.x = 100;
//firstenemy.y = 100;
//stage.addChild(firstenemy);
stage.addEventListener( Event.ENTER_FRAME, everyFrameMain);
}
// check if an enemy hits the player.
/*public function enemycollison(): void {
if(firstenemy.hitTestObject(player)){
trace ('hit enemy');
player.health--;
firstenemy.kill();
}
}*/
// manage events that need to haapen globally for every frame
public function everyFrameMain(Event):void
{
/*if (stage.contains(firstenemy)){
enemycollison();
} */
//root.scrollRect = new Rectangle(player.x - 400, player.y - 300, 800, 600);
}
// finish and close game
public function endgame():void
{
}
}
}
最后是我的树类
package code {
import flash.display.*;
import flash.events.*;
import flash.ui.*;
import code.Main;
import code.everythingContainer;
public class Tree1 extends everythingContainer {
public function Tree1()
{
// constructor code
trace ('Tree1 started');
if(stage) init();
else
this.addEventListener(Event.ADDED_TO_STAGE, init);
}
function init(eventInfo:Event = null):void
{
if(eventInfo != null)
{
this.removeEventListener(Event.ADDED_TO_STAGE, init);
trace ('Tree1 init removed');
}
this.addEventListener( Event.ENTER_FRAME, tree1EveryFrame);
}
public function tree1EveryFrame (Event): void {
playercollision();
}
public function playercollision(): void {
if(this.hitTestObject(Main.player)){
trace ('hit wall');
Main.player.x = Main.player.xprev;
Main.player.y = Main.player.yprev;
}
}
}
}
答案 0 :(得分:1)
可能是由于Fla文件中的链接错误。
在网址的Flash CS6中添加了一个示例项目: https://user.iter.org/filesharing/?uid=927205f7-cdfe-4915-a175-bc87f64af444 可用约40天。
该文件中的项目结构:
这应该与您在问题中描述的完全相同,这意味着该方法没有任何问题,只是找到错误的问题。很可能是由于FLA文件中的错误,但可能是其他原因。
package code {
import flash.display.MovieClip;
public class Foobar extends MovieClip {
public function Foobar() {
trace("foobar ctor()");
}
}
}
package code {
import flash.display.MovieClip;
public class Tree1 extends Foobar {
public function Tree1() {
trace("Tree1 ctor()");
}
}
}