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AS3 确定什么对象重叠它？

发布于 2024-12-13 13:58:52 字数 109 浏览 0 评论 0原文

我目前正在用 as3 构建一个游戏；我现在遇到的问题是，当我掷虚拟骰子时，玩家（标记）在棋盘上移动，但我需要知道的是：有没有办法找到玩家着陆的对象（盒子）的实例名称在？

抱歉我的英语不好。

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红焚 2024-12-20 13:58:52

这在很大程度上取决于您的电路板的布局方式。一种方法是将玩家可以降落的所有对象放入一个数组中，然后检查玩家的 x 和 y 坐标以查看它们是否落入每个对象的框内。

例如：

var boardObjects:Array; // This would contain references to all the objects the 
    // player object might land on. Initialize it, then use boardObjects.add(object) 
    // on each one until they're all in the array.

// once the player has moved:
for(var i:int = 0; i < boardObjects.size; i++) {
    var obj:* = boardObjects[i];
    if (player.x >= obj.x && player.x <= obj.x + obj.width) {
        if (player.y >= obj.y && player.y <= obj.y + obj.height) {
            // If these if statements are all true, the Player's top-left corner
            // is inside the object's bounding box. If this is a function,
            // here is a good spot to put a return statement.
        }
    }
}

您可能希望根据玩家的中间而不是左上角来计算它，在这种情况下，只需将玩家宽度的一半添加到其 x 位置，将其高度的一半添加到 y 位置。

It depends a lot on how your board is laid out. One way is to put all of the objects your player can land on into an array, then check the player's x and y coordinates to see if they fall inside of each object's box.

For example:

var boardObjects:Array; // This would contain references to all the objects the 
    // player object might land on. Initialize it, then use boardObjects.add(object) 
    // on each one until they're all in the array.

// once the player has moved:
for(var i:int = 0; i < boardObjects.size; i++) {
    var obj:* = boardObjects[i];
    if (player.x >= obj.x && player.x <= obj.x + obj.width) {
        if (player.y >= obj.y && player.y <= obj.y + obj.height) {
            // If these if statements are all true, the Player's top-left corner
            // is inside the object's bounding box. If this is a function,
            // here is a good spot to put a return statement.
        }
    }
}

You may want to calculate it based on the middle of the player rather than their top-left corner, in which case just add half the player's width to their x position and half their height to their y position.

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飘过的浮云 2024-12-20 13:58:52

为了性能（并避免不必要的代码），如果它是基于图块/骰子，为什么不做这样的事情

private function rollDice(){
    var results:Array = [Math.ceil(Math.random() * 6), Math.ceil(Math.random() * 6)] //Accurately simulates two 6 sided dice
    dice1.rollAnimation(results[0]);
    dice2.rollAnimation(results[1]);
    player.position += results[0] + results[1];
}

板将是一个数组，并且在播放器中您可以使用 getters/setters 来“包装”板，如下所示

private var _position:int = 0;
public function get position():int{
    return _position;
}
public function set position(value:int){
    _position = value;
    while(_position > GameBoard.TILES){
        _position -= GameBoard.TILES;
    }
    x = //Whatever you determine the positioning of the player..
}

For performance (and avoiding unnecessary code), if it's tile based / dice why not do something like this

private function rollDice(){
    var results:Array = [Math.ceil(Math.random() * 6), Math.ceil(Math.random() * 6)] //Accurately simulates two 6 sided dice
    dice1.rollAnimation(results[0]);
    dice2.rollAnimation(results[1]);
    player.position += results[0] + results[1];
}

The board would be an array, and in Player you can use getters/setters to 'wrap' the board like this

private var _position:int = 0;
public function get position():int{
    return _position;
}
public function set position(value:int){
    _position = value;
    while(_position > GameBoard.TILES){
        _position -= GameBoard.TILES;
    }
    x = //Whatever you determine the positioning of the player..
}

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