Color.h

#ifndef _COLOR_H
#define _COLOR_H


class Color{

	double red, green, blue, special;

	public:

	Color ();

	Color (double,double,double, double);

	// method functions
	double getColorRed() { return red; }
	double getColorGreen() { return green; }
	double getColorBlue() { return blue; }
	double getColorSpecial() { return special; }


	double setColorRed(double redValue) { red = redValue; }
	double setColorGreen(double greenValue) { green = greenValue; }
	double setColorBlue(double blueValue) { blue = blueValue; }
	double setColorSpecial(double specialValue) { special = specialValue; }

	double brightness(){
		return (red + green + blue)/3;
	}

	Color colorScalar(double scalar){
		return Color (red*scalar, green*scalar, blue*scalar, special);
	}

	Color colorAdd(Color color){
		return Color (red + color.getColorRed(), green + color.getColorGreen(), blue + color.getColorBlue(), special);
	}

	Color colorMultiply(Color color){
		return Color (red * color.getColorRed(), green * color.getColorGreen(), blue * color.getColorBlue(), special);
	}

	Color colorAverage(Color color){
		return Color ((red + color.getColorRed())/2, (green + color.getColorGreen())/2, (blue + color.getColorBlue())/2, special);
	}

	Color clip(){
		double allLight = red + green + blue;
		double excessLight = allLight - 3;
		if ( excessLight > 0 ){
			red = red + excessLight * (red/allLight);
			green = green + excessLight * (green/allLight);
			blue = blue + excessLight * (blue/allLight);
		}
		if (red > 1){ red = 1; }
		if (green > 1){ green = 1; }
		if (blue > 1){ blue = 1; }

		if (red < 0){ red = 0; }
		if (green < 0){ green = 0; }
		if (blue < 0){ blue = 0; }

		return Color ( red, green, blue, special );
	}

};

Color::Color(){
	red = 0.5;
	green = 0.5;
	blue = 0.5;
}

Color::Color( double r, double g, double b, double s){
	red = r;
	green = g;
	blue = b;
	special = s;
}


#endif