直线绘制方法之“大杂烩”

// 功能：在给定影片上，根据起止点坐标画直线
function drawLine(drawingTable_mc:MovieClip, startPointX:Number, startPointY:Number, endPointX:Number, endPointY:Number) {
with (drawingTable_mc) {
// 设置线型
lineStyle(random(10), random(0xffffff), random(50) + 51);
// 设置起点、终点
moveTo(startPointX, startPointY);
lineTo(endPointX, endPointY);
}
}
//
// 舞台中心点坐标
var centerPointX:Number = Stage.width / 2;
var centerPointY:Number = Stage.height / 2;
// 设置基层，相对于_root而言，0-9作为预留层
var BASE_LAYER:Number = 10;
// 创建绘图板
var temporary_mc:MovieClip = _root.createEmptyMovieClip("drawingTable", BASE_LAYER);
// 初始化计数器
var counter:Number = 0;
// 设置自动绘制的线条总数
var LINE_TOTAL:Number = 60;
// 自动画线
temporary_mc.onEnterFrame = function() {
drawLine(temporary_mc, centerPointX, centerPointY, random(Stage.width), random(Stage.height));
counter++;
if (counter == LINE_TOTAL) {
delete this.onEnterFrame;
}
};
// 创建鼠标侦听器
mouseListener = new Object();
// 设置侦听事件及其处理函数
mouseListener.onMouseDown = function() {
drawLine(temporary_mc, centerPointX, centerPointY, _root._xmouse, _root._ymouse);
};
// 为鼠标添加侦听器
Mouse.addListener(mouseListener);