AS3 Error 1119 undefined property with static type Function

Question

我是 as3 和一般编程的新手，我想问一下如何在单击“mc_gameover”事件时完全隐藏“function grid()”？

我尝试使用“stage.parent.removeChild(tile);”调整它的可见性并删除“tile”变量的子项，但它只删除了一个tile。

function grid(): void

{

mc_gameover.btn_mainmenu.addEventListener(MouseEvent.CLICK, hidetile);

function hidetile(event:MouseEvent):void
{   

grid.visible= false;
removeChild(tile);

}   
    
    
for(var i:int = 0; i < rows; i++){

for(var j:int = 0; j < columns; j++){

var tile:Sprite = new Tile(); //get tile from the library

//Arrange tiles to form a grid

tile.x = (headWidth/2) + (j * headWidth);

tile.y = (headWidth/2) + (i * headWidth);

addChild(tile);
    

}

}


}

grid(); 

Answer 1

为什么你认为不可能？这有几种可能。最直接易懂的方法是设计一个容器来容纳所有你想同时显示/隐藏的东西。

// Might not be a mandatory section here,
// but will be when you get to work with classes.
import Tile;
import flash.display.Sprite;
import flash.events.MouseEvent;

// Container for all the tiles.
var WholeGrid:Sprite;

// Do not nest functions.
// Although it is possible, it is not a good thing to do.
function hideGrid(event:MouseEvent):void
{
    // Use tabs to keep your code structured and readable.
    if (WholeGrid)
    {
        WholeGrid.visible = false;
    }
}

function arrangeGrid(): void
{
    // Create the container, if necessary. Clean and show it otherwise.
    if (WholeGrid)
    {
        WholeGrid.removeChildren();
        WholeGrid.visible = true;
    }
    else
    {
        WholeGrid = new Sprite;
        addChild(WholeGrid);
    }
    
    mc_gameover.btn_mainmenu.addEventListener(MouseEvent.CLICK, hideGrid);
  
    for (var i:int = 0; i < rows; i++)
    {
        for (var j:int = 0; j < columns; j++)
        {
            // Instantiate a new tile from library class.
            var tile:Sprite = new Tile;
            
            // Arrange the tile to form a grid.
            tile.x = (headWidth / 2) + (j * headWidth);
            tile.y = (headWidth / 2) + (i * headWidth);

            WholeGrid.addChild(tile);
        }
    }
}

// Create and arrange the grid.
arrangeGrid();