小刀记事

function dashed(mc, x1, y1, x2, y2) {
var dash = 8;
var ed = 2;
var angle = Math.atan2(y2 - y1, x2 - x1);
var step = dash + ed;
var dashx = dash * Math.cos(angle);
var dashy = dash * Math.sin(angle);
var edx = ed * Math.cos(angle);
var edy = ed * Math.sin(angle);
var stepx = step * Math.cos(angle);
var stepy = step * Math.sin(angle);
var _length = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
with (mc) {
clear();
lineStyle(0, 0xff0000, 100);
for (var i = step, px = x1, py = y1; i < _length; i += step) {
moveTo(px + edx, py + edy);
lineTo(px + dashx, py + dashy);
px += stepx;
py += stepy;
}
}
}
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function drawDashedLine(mc:MovieClip, x1:Number, y1:Number, x2:Number, y2:Number) {
var dash = 5 + Math.floor(Math.random() * 5);
var step = dash + 3;
var angle = Math.atan2(y2 - y1, x2 - x1);
var dashx = dash * Math.cos(angle);
var dashy = dash * Math.sin(angle);
var stepx = step * Math.cos(angle);
var stepy = step * Math.sin(angle);
var _length = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
with (mc) {
lineStyle(0, 0xff0000, 100);
for (var i = step, px = x1, py = y1; i <= _length; i += step) {
moveTo(px, py);
lineTo(px + dashx, py + dashy);
px += stepx;
py += stepy;
}
moveTo(px, py);
lineTo(x2, y2);
}
}
转自:向明空间