线路从一个实例到另一个工作不动作脚本3.0 [英] Line from one instance to another not working Action Script 3.0

问题描述

我想创建到可移动的情况下，这是可拖动，并有一条线连接它们自动更新。

I am trying to create to movable instances, that are draggable, and which have a line connecting them which updates automatically.

的事情是：原线只是去随机并作为被拖动的情况下（MC1，MC2）不更新。  这里是code我有这么远：

The thing is: The original line just goes randomly and doesn't update as the instances (mc1, mc2) are being dragged. Here is the code I have got so far:

 mc1.addEventListener(MouseEvent.MOUSE_DOWN, function (e:MouseEvent):void
{
    e.currentTarget.startDrag();
});

mc1.addEventListener(MouseEvent.MOUSE_UP, function (e:MouseEvent):void
{
    e.currentTarget.stopDrag();
});
mc2.addEventListener(MouseEvent.MOUSE_DOWN, function (e:MouseEvent):void
{
    e.currentTarget.startDrag();
});

mc2.addEventListener(MouseEvent.MOUSE_UP, function (e:MouseEvent):void
{
    e.currentTarget.stopDrag();
});

var mc:MovieClip = new MovieClip();
mc.graphics.beginFill(0x000000);
mc.graphics.lineStyle(2,0x000000);

//start drawing the line
mc.graphics.moveTo(mc1.x,mc1.y);
mc.graphics.lineTo(mc2.x,mc2.y);
mc.graphics.endFill();

//Position your new movie clip
addChild(mc);

谁能告诉我去哪里我听错了？

Can anyone tell me where have I got it wrong?

非常感谢任何帮助！

推荐答案

您需要做的是捕获用户的鼠标为他（她）是拖动影片剪辑的运动。

What you need to do is capture the movement of the users mouse as (s)he is dragging the MovieClip.

首先创建一个isDragging变量 VAR isDragging：布尔=假; ，并设置为true，当鼠标向下假当鼠标向上

First create a isDragging variable var isDragging:Boolean = false; and set this to true when mouse down and false when mouse up.

接着一个的MouseEvent.MOUSE_MOVE事件侦听器添加到时间线上行

Then add a MouseEvent.MOUSE_MOVE event listener to the line timeline

addEventListener(MouseEvent.MOUSE_MOVE, function (e:MouseEvent):void
{
    if (isDragging) {
        drawConnectiveLine(mc1, mc2);
    }
    return;
});

方法 drawConnectiveLine 将更新的行矢量形状移到影片剪辑的{X，Y}。

The method drawConnectiveLine will update the line vector shape to move to {x, y} of the movieclips.

function drawConnectiveLine(d:DisplayObject, d2:DisplayObject):void {
    mc.graphics.clear();
    mc.graphics.lineStyle(2,0);
    mc.graphics.moveTo(d.x,d.y);
    mc.graphics.lineTo(d2.x,d2.y);
}

修改您的pre-现有的脚本：

var isDragging:Boolean = false;
var mc:MovieClip = new MovieClip();
mc.graphics.lineStyle(2,0);
mc.graphics.moveTo(mc1.x,mc1.y);
mc.graphics.lineTo(mc2.x,mc2.y);
addChild(mc);

mc1.addEventListener(MouseEvent.MOUSE_DOWN, function (e:MouseEvent):void
{
    isDragging = true;
    e.currentTarget.startDrag();
});

mc1.addEventListener(MouseEvent.MOUSE_UP, function (e:MouseEvent):void
{
    isDragging = false;
    e.currentTarget.stopDrag();
});

mc2.addEventListener(MouseEvent.MOUSE_DOWN, function (e:MouseEvent):void
{
    isDragging = true;
    e.currentTarget.startDrag();
});
mc2.addEventListener(MouseEvent.MOUSE_UP, function (e:MouseEvent):void
{
    isDragging = false;
    e.currentTarget.stopDrag();
});
addEventListener(MouseEvent.MOUSE_MOVE, function (e:MouseEvent):void
{
    if (isDragging) {
        mc.graphics.clear();
        mc.graphics.lineStyle(2,0);
        mc.graphics.moveTo(mc1.x,mc1.y);
        mc.graphics.lineTo(mc2.x,mc2.y);
    }
});

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