创建游戏内核（7）【OO改良版】

创建游戏内核（7）【OO改良版】

 

本篇是创建游戏内核（6）【OO改良版】的续篇，关于该内核的细节说明请参阅创建游戏内核（7）。

接口：

class  MATERIAL
{
public :
    MATERIAL();

    D3DMATERIAL9* get_material();

     void  init();

     void  set_diffuse(unsigned  char  red, unsigned  char  green, unsigned  char  blue);
     void  get_diffuse(unsigned  char * red, unsigned  char * green, unsigned  char * blue);

     void  set_ambient(unsigned  char  red, unsigned  char  green, unsigned  char  blue);
     void  get_ambient(unsigned  char * red, unsigned  char * green, unsigned  char * blue);

     void  set_specular(unsigned  char  red, unsigned  char  green, unsigned  char  blue);
     void  get_specular(unsigned  char * red, unsigned  char * green, unsigned  char * blue);

     void  set_emissive(unsigned  char  red, unsigned  char  green, unsigned  char  blue);
     void  get_emissive(unsigned  char * red, unsigned  char * green, unsigned  char * blue);

     void  set_power( float  power);
     float  get_power();

private :
    D3DMATERIAL9 m_material;
};

typedef MATERIAL* MATERIAL_PTR;

 

实现：

//-------------------------------------------------------------------------
// Constructor, zero member data.
//-------------------------------------------------------------------------
MATERIAL::MATERIAL()
{
    ZeroMemory( this ,  sizeof (* this ));    
}

//-------------------------------------------------------------------------
// set a default material (white).
//-------------------------------------------------------------------------
void  MATERIAL::init()
{
    set_diffuse(255, 255, 255);
    set_ambient(255, 255, 255);
    set_specular(255, 255, 255);
    set_emissive(255, 255, 255);

    set_power(1.0f);
}

//-------------------------------------------------------------------------
// set diffuse color.
//-------------------------------------------------------------------------
void  MATERIAL::set_diffuse(unsigned  char  red, unsigned  char  green, unsigned  char  blue)
{
    m_material.Diffuse.r = red / 255.0f;
    m_material.Diffuse.g = green / 255.0f;
    m_material.Diffuse.b = blue / 255.0f;
}

//-------------------------------------------------------------------------
// Get diffuse color.
//-------------------------------------------------------------------------
void  MATERIAL::get_diffuse(unsigned  char * red, unsigned  char * green, unsigned  char * blue)
{
     if (red != NULL)
        *red = (unsigned  char )(255.0 * m_material.Diffuse.r);

     if (green != NULL)
        *green = (unsigned  char )(255.0 * m_material.Diffuse.g);

     if (blue != NULL)
        *blue = (unsigned  char )(255.0 * m_material.Diffuse.b);
}

//-------------------------------------------------------------------------
// set ambient color.
//-------------------------------------------------------------------------
void  MATERIAL::set_ambient(unsigned  char  red, unsigned  char  green, unsigned  char  blue)
{
    m_material.Ambient.r = red / 255.0f;
    m_material.Ambient.g = green / 255.0f;
    m_material.Ambient.b = blue / 255.0f;
}

//-------------------------------------------------------------------------
// Get ambient color.
//-------------------------------------------------------------------------
void  MATERIAL::get_ambient(unsigned  char  *red, unsigned  char  *green, unsigned  char  *blue)
{
     if (red != NULL)
        *red = (unsigned  char )(255.0f * m_material.Ambient.r);

     if (green != NULL)
        *green = (unsigned  char )(255.0f * m_material.Ambient.g);

     if (blue != NULL)
        *blue = (unsigned  char )(255.0f * m_material.Ambient.b);
}

//-------------------------------------------------------------------------
// set specular color.
//-------------------------------------------------------------------------
void  MATERIAL::set_specular(unsigned  char  red, unsigned  char  green, unsigned  char  blue)
{
    m_material.Specular.r = red / 255.0f;
    m_material.Specular.g = green / 255.0f;
    m_material.Specular.b = blue / 255.0f;
}

//-------------------------------------------------------------------------
// Get specular color.
//-------------------------------------------------------------------------
void  MATERIAL::get_specular(unsigned  char * red, unsigned  char * green, unsigned  char * blue)
{
     if (red != NULL)
        *red = (unsigned  char )(255.0 * m_material.Specular.r);

     if (green != NULL)
        *green = (unsigned  char )(255.0 * m_material.Specular.g);

     if (blue != NULL)
        *blue = (unsigned  char )(255.0 * m_material.Specular.b);
}

//-------------------------------------------------------------------------
// set emissive color.
//-------------------------------------------------------------------------
void  MATERIAL::set_emissive(unsigned  char  red, unsigned  char  green, unsigned  char  blue)
{
    m_material.Emissive.r = red / 255.0f;
    m_material.Emissive.g = green / 255.0f;
    m_material.Emissive.b = blue / 255.0f;
}

//-------------------------------------------------------------------------
// Get emmisive color.
//-------------------------------------------------------------------------
void  MATERIAL::get_emissive(unsigned  char  *red, unsigned  char  *green, unsigned  char  *blue)
{
     if (red != NULL)
        *red = (unsigned  char )(255.0 * m_material.Emissive.r);

     if (green != NULL)
        *green = (unsigned  char )(255.0 * m_material.Emissive.g);

     if (blue != NULL)
        *blue = (unsigned  char )(255.0 * m_material.Emissive.b);
}

//-------------------------------------------------------------------------
// set power for material, which specifying the sharpness of specular 
// highlights.
//-------------------------------------------------------------------------
void  MATERIAL::set_power( float  power)
{
    m_material.Power = power;
}

//-------------------------------------------------------------------------
// Get power for material, which specifying the sharpness of specular 
// highlights.
//-------------------------------------------------------------------------
float  MATERIAL::get_power()
{
     return  m_material.Power;
}

//-------------------------------------------------------------------------
// Get material.
//-------------------------------------------------------------------------
D3DMATERIAL9* MATERIAL::get_material()
{
     return  &m_material;
}