/*  Lots of fun with colors. Read the comments and 
    figure out how to use the code. Look up the Color
    object in the Actionscript Dictionary if
    necessary (or just do it anyway). =]  Enjoy.
                             -- Robert Penner
                                www.robertpenner.com
                                June 2001
*/


// tint an object with a color just like Effect panel
// r, g, b between 0 and 255; amount between 0 and 100
Color.prototype.setTint = function (r, g, b, amount) {
	var trans = new Object();
	trans.ra = trans.ga = trans.ba = 100 - amount;
	var ratio = amount / 100;
	trans.rb = r * ratio;
	trans.gb = g * ratio;
	trans.bb = b * ratio;
	this.setTransform(trans);
} // Robert Penner June 2001 - www.robertpenner.com


// brighten an object just like Effect panel
// bright between 0 and 100
Color.prototype.setBrightness = function (bright) {
	var offset = 0;
	if (bright > 0) offset = 256 * (bright / 100);
	var trans = new Object();
	trans.ra = trans.ga = trans.ba = 100 - Math.abs(bright);
	trans.rb = trans.gb = trans.bb = offset;
	this.setTransform(trans);
} //rp


// push an object's colors around - interesting fx
// r, g, b between -255 and 255
Color.prototype.setTintOffset = function (r, g, b) {
	var trans = {rb:r, gb:g, bb:b};
	this.setTransform(trans);
} //rp


// push an object's brightness around - fx like eneri.net
// offset between -255 and 255
Color.prototype.setBrightOffset = function (offset) {
	var trans = new Object();
	trans.rb = trans.gb = trans.bb = offset;
	this.setTransform(trans);
} //rp


// reset the color object to normal
Color.prototype.reset = function () {
	var trans = {ra:100, ga:100, ba:100, rb:0, gb:0, bb:0};
	this.setTransform(trans);
} //rp


// create a negative image - invert all colors
Color.prototype.negative = function () {
	var trans = {ra:-100, ga:-100, ba:-100, rb:255, gb:255, bb:255};
	this.setTransform(trans);
} //rp


// set red, green, and blue with normal numbers
// r, g, b between 0 and 255 
Color.prototype.setRGB2 = function (r, g, b) {
	this.setRGB(r << 16 | g << 8 | b);
} // Branden Hall - www.figleaf.com