Well I've never made one before - but I'd store an array of the gun,
mirrors, and goals x,y and rotation properties and crawl through them to
draw the line...something like:
[as]
w = Stage.width;
h = Stage.height;
Stage.align = "TL";
Stage.scaleMode = "noScale";
//
points = new Array({x:10, y:10, rot:0}, {x:300, y:10, rot:90}, {x:300,
y:300, rot:180}, {x:100, y:300, rot:90});
drawBeam = function () {
holder = this.createEmptyMovieClip("holder",
this.getNextHighestDepth());
holder.lineStyle(1);
for (i=0; i<points.length; i++) {
pt = points[i];
npt = points[i+1];
if (i == 0) {
holder.moveTo(pt.x, pt.y);
}
// if rot = 0 draw horizontally right
if (pt.rot == 0) {
// // is next point on same y axes?
// // // is next point x greater than this x?
if (pt.y == npt.y && npt.x>pt.x) {
holder.lineTo(npt.x, npt.y);
} else {
holder.lineTo(pt.x, w);
//draw to edge
return;
}
}
//
// if rot = 90 draw vertically down
if (pt.rot == 90) {
// // is next point on same x axes?
// // // is next point y greater than this y?
if (pt.x == npt.x && npt.y>pt.y) {
holder.lineTo(npt.x, npt.y);
} else {
//draw to edge
holder.lineTo(pt.x, h);
return;
}
}
//
// if rot= 180 draw horizontally left
if (pt.rot == 180) {
// // is next point on same y axes?
// // // is next point x less than this x?
if (pt.y == npt.y && npt.x<pt.x) {
holder.lineTo(npt.x, npt.y);
} else {
//draw to edge
holder.lineTo(0, pt.y);
return;
}
}
//
// if rot = 270 draw vertically up
if (rot == 270) {
// // is next point on same x axes?
// // // is next point y less than this y?
if (pt.x == npt.x && npt.y<pt.y) {
holder.lineTo(npt.x, npt.y);
} else {
//draw to edge
holder.lineTo(pt.x, 0);
return;
}
}
}
};
drawBeam();
[/as]
Untested though - but it gives the general idea.
M
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf
> Of James Marsden
> Sent: 07 March 2006 11:45
> To: Flashcoders mailing list
> Subject: [Flashcoders] Bouncing laserbeam for game
>
> Hello games people,
>
> I'm tasked with programming a bouncing laserbeam like in the
> following pic.
>
> http://www.irem.co.jp/e/game/r/rtype/image/r1stg6.gif
>
> Has anyone done this kind of thing before and can point me in
> the right direction?
>
> TIA,
>
> James
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