我想创建一个带有数组的地图......我在flash上看到了很多关于平台游戏创建的教程，但没有人在地图上移动。
所以，我试着自己做。 在移动地图之前，我要创建它，这就是我的问题！ 所以，我让你看看三层代码并发表你的意见。
Flash告诉我一个错误＃1009，他无法访问null对象引用的属性或方法而我看不到一次？
at Sansnom_fla::MainTimeline/createMap()
at Sansnom_fla::MainTimeline/frame1()
第1层
var grid:MovieClip = new MovieClip();
// liste d'affichage
addChild(grid)
createMap()
第2层
function createMap():void{
for (var i:int=0; i<20; i++){
for (var j:int=0; j<15; j++){
var T:int = 32
var dT:int = T*.5
var f:int = map[j][i]
if(f>0) {
var t:block = new block()
t.x= i*T;
t.y= j*T;
t.gotoAndStop(f)
grid.addChild(t)
}
}
}
}
第3层
var map:Array = [
[1,1,1,1,1,1,10,0,0,11,1,1,1,1,1,1,1,1,1,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,1],
[1,0,0,0,0,0,6,1,0,0,4,4,4,4,0,0,6,1,0,1],
[1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,1,6,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,6,0,0,1,0,0,1,0,0,1,0,0,1,2,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,1,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,1,3,1],
[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1]
]
var stock:Array = [
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
]
非常感谢！ Ps：你可以学习，block是一个movieClip，其中一旦帧是一个特定的块。
答案 0 :(得分：1)
为什么要在图层之间拆分代码？不要那样做。你还在第2层调用map之前它还存在（它不会在第3层代码运行之前创建）所以我的建议是将它全部粘贴到1层，在1帧。
然后调整您的代码顺序：
var map:Array = [
[1,1,1,1,1,1,10,0,0,11,1,1,1,1,1,1,1,1,1,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,1],
[1,0,0,0,0,0,6,1,0,0,4,4,4,4,0,0,6,1,0,1],
[1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,1,6,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,6,0,0,1,0,0,1,0,0,1,0,0,1,2,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,1,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,1,3,1],
[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1]
];
var stock:Array = [
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
];
function createMap():void{
for (var i:int=0; i<20; i++){
for (var j:int=0; j<15; j++){
var T:int = 32
var dT:int = T*.5
var f:int = map[j][i]
if(f>0) {
var t:block = new block()
t.x= i*T;
t.y= j*T;
t.gotoAndStop(f)
grid.addChild(t)
}
}
}
}
var grid:MovieClip = new MovieClip();
// liste d'affichage
addChild(grid);
createMap();
另外不要忘记;字符，你有一个错过它们的习惯。无论如何，希望这有帮助！