laColor.h

/*

Jump'n'Run Engine
http://www.atanaslaskov.com/jnr/

BSD LICENSE
Copyright (c) 2007-2013, Atanas Laskov
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL ATANAS LASKOV BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/



#ifndef M_RGB_H
#define M_RGB_H

#define M_CC unsigned char      //< color component type

class laColor: public laLoadableObj
{
protected:
    //Color components
    //unsigned char r, g, b, a;
    M_CC _cc[4];

public:
    // Indexing
    //
    inline M_CC& operator[] (unsigned short n)          { /*ASSERT(n<4, "%d out of bounds", n);*/ return _cc[n]; }
    inline const M_CC& operator() (unsigned short n)    const{ /*ASSERT(n<4, "%d out of bounds", n);*/ return _cc[n]; }

    inline const M_CC& r() const{ return _cc[0]; }
    inline const M_CC& g() const{ return _cc[1]; }
    inline const M_CC& b() const{ return _cc[2]; }
    inline const M_CC& a() const{ return _cc[3]; }
    inline void r(const M_CC &val) { _cc[0] = val; }
    inline void g(const M_CC &val) { _cc[1] = val; }
    inline void b(const M_CC &val) { _cc[2] = val; }
    inline void a(const M_CC &val) { _cc[3] = val; }

    inline M_CC* data() { return _cc; } // NOTE: This could be operator M_CC*(), but that's harder to debug
    inline const M_CC* cdata() const{ return _cc; }

    // Constructors
    //
    laColor()                                       { _cc[0] = _cc[1] = _cc[2] = 0; _cc[3] = 255; };
    laColor(M_CC r, M_CC g, M_CC b, M_CC a=255) { _cc[0] = r; _cc[1] = g; _cc[2] = b; _cc[3] = a; };
    laColor(M_CC cc)                                { _cc[0] = _cc[1] = _cc[2] = _cc[3] = cc; };
    laColor(M_CC *v)                                { _cc[0] = v[0]; _cc[1] = v[1]; _cc[2] = v[2]; _cc[3] = v[3]; }
    laColor(const laColor &c)                       { _cc[0] = c(0); _cc[1] = c(1); _cc[2] = c(2); _cc[3] = c(3); };

    virtual void load(class laFileParser *fp);

    // Operators
    //
    const laColor operator*(const double &n) { return laColor(r()*n, g()*n, b()*n, a()*n); };
    const laColor operator/(const double &n) { return laColor(r()/n, g()/n, b()/n, a()/n); };
    inline const laColor operator*=(const double &n) { _cc[0]*=n; _cc[1]*=n; _cc[2]*=n; _cc[3]*=n; return *this; };
    inline const laColor operator/=(const double &n) { _cc[0]/=n; _cc[1]/=n; _cc[2]/=n; _cc[3]/=n; return *this; };

    /*inline const laColor operator*=(const laColor &pt) { r*=pt[0]; g*=pt[1]; b*=pt[2]; a*=pt[3]; return *this; };
    inline const laColor operator/=(const laColor &pt) { r/=pt[0]; g/=pt[1]; b/=pt[2]; a/=pt[3]; return *this; };*/

    //A few color filters
    /*void intensify(double i)
    {
        double ar = r+i*255;
        double ag = g+i*255;
        double ab = b+i*255;
        if(ar>255)ar=255;
        if(ag>255)ag=255;
        if(ab>255)ab=255;
        if(ar<0)ar=0;
        if(ag<0)ag=0;
        if(ab<0)ab=0;
        r = (unsigned char)ar;
        g = (unsigned char)ag;
        b = (unsigned char)ab;
    }

    void brighten(double br)
    {
        double ar = r*br;
        double ag = g*br;
        double ab = b*br;
        if(ar>255)ar=255;
        if(ag>255)ag=255;
        if(ab>255)ab=255;
        if(ar<0)ar=0;
        if(ag<0)ag=0;
        if(ab<0)ab=0;
        r = (unsigned char)ar;
        g = (unsigned char)ag;
        b = (unsigned char)ab;
    }*/
};
#endif