core_graphics.cpp

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  if((m_Graphics = Graphics) == NULL)
    return FALSE;
  if(Graphics->GetDeviceCOM() == NULL)
    return FALSE;
  if(Filename == NULL)
    return FALSE;

  if(FAILED(D3DXCreateTextureFromFileEx(Graphics->GetDeviceCOM(),
    Filename, D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT,
    0, Format, D3DPOOL_MANAGED, 
    D3DX_FILTER_TRIANGLE, D3DX_FILTER_TRIANGLE,
    Transparent, NULL, NULL, &m_Texture)))
      return FALSE;

  m_Width = GetWidth();
  m_Height = GetHeight();

  return TRUE;
}

BOOL cTexture::Create(cGraphics *Graphics, IDirect3DTexture8 *Texture)
{
  D3DLOCKED_RECT SrcRect, DestRect;
  D3DSURFACE_DESC Desc;

  Free();

  if((m_Graphics = Graphics) == NULL)
    return FALSE;

  if(Texture == NULL)
    return TRUE;
    
  // Copy texture over
  Texture->GetLevelDesc(0, &Desc);
  m_Width  = Desc.Width;
  m_Height = Desc.Height;
  m_Graphics->GetDeviceCOM()->CreateTexture(m_Width, m_Height, 0, 0, Desc.Format, D3DPOOL_MANAGED, &m_Texture);

  Texture->LockRect(0, &SrcRect, NULL, D3DLOCK_READONLY);
  m_Texture->LockRect(0, &DestRect, NULL, 0);

  memcpy(DestRect.pBits, SrcRect.pBits, SrcRect.Pitch * m_Height);

  m_Texture->UnlockRect(0);
  Texture->UnlockRect(0);

  return TRUE;
}

BOOL cTexture::Free()
{
  ReleaseCOM(m_Texture);
  m_Graphics = NULL;
  m_Width = m_Height = 0;

  return TRUE;
}

BOOL cTexture::IsLoaded()
{
  if(m_Texture == NULL)
    return FALSE;
  return TRUE;
}

IDirect3DTexture8 *cTexture::GetTextureCOM()
{
  return m_Texture;
}

long cTexture::GetWidth()
{
  D3DSURFACE_DESC d3dsd;

  if(m_Texture == NULL)
    return 0;

  if(FAILED(m_Texture->GetLevelDesc(0, &d3dsd)))
    return 0;

  return d3dsd.Width;
}

long cTexture::GetHeight()
{
  D3DSURFACE_DESC d3dsd;

  if(m_Texture == NULL)
    return 0;

  if(FAILED(m_Texture->GetLevelDesc(0, &d3dsd)))
    return 0;

  return d3dsd.Height;
}

D3DFORMAT cTexture::GetFormat()
{
  D3DSURFACE_DESC d3dsd;

  if(m_Texture == NULL)
    return D3DFMT_UNKNOWN;

  if(FAILED(m_Texture->GetLevelDesc(0, &d3dsd)))
    return D3DFMT_UNKNOWN;

  return d3dsd.Format;
}

BOOL cTexture::Blit(long DestX, long DestY,                   \
                    long SrcX, long SrcY,                     \
                    long Width, long Height,                  \
                    float XScale, float YScale,               \
                    D3DCOLOR Color)
{
  RECT Rect;
  ID3DXSprite *pSprite;

  if(m_Texture == NULL)
    return FALSE;
  if(m_Graphics == NULL)
    return FALSE;
  if((pSprite = m_Graphics->GetSpriteCOM()) == NULL)
    return FALSE;

  if(!Width)
    Width = m_Width;
  if(!Height)
    Height = m_Height;

  Rect.left = SrcX;
  Rect.top  = SrcY;
  Rect.right = Rect.left + Width;
  Rect.bottom = Rect.top + Height;

  if(FAILED(pSprite->Draw(m_Texture,                          \
         &Rect, &D3DXVECTOR2(XScale, YScale),                 \
         NULL, 0.0f,                                          \
         &D3DXVECTOR2((float)DestX, (float)DestY),            \
         Color)))
    return FALSE;
  return TRUE;
}

cMaterial::cMaterial()
{
  // Set a default material (white)
  ZeroMemory(&m_Material, sizeof(D3DMATERIAL8));
  SetDiffuseColor(255,255,255);
  SetAmbientColor(255,255,255);
  SetSpecularColor(255,255,255);
  SetEmissiveColor(0,0,0);
  SetPower(1.0f);
}

BOOL cMaterial::SetDiffuseColor(char Red, char Green, char Blue)
{
  m_Material.Diffuse.r = 1.0f / 255.0f * (float)Red;
  m_Material.Diffuse.g = 1.0f / 255.0f * (float)Green;
  m_Material.Diffuse.b = 1.0f / 255.0f * (float)Blue;

  return TRUE;
}

BOOL cMaterial::GetDiffuseColor(char *Red, char *Green, char *Blue)
{
  if(Red != NULL)
    *Red = (char)(255.0f * m_Material.Diffuse.r);

  if(Green != NULL)
    *Green = (char)(255.0f * m_Material.Diffuse.g);

  if(Blue != NULL)
    *Blue = (char)(255.0f * m_Material.Diffuse.b);

  return TRUE;
}

BOOL cMaterial::SetAmbientColor(char Red, char Green, char Blue)
{
  m_Material.Ambient.r = 1.0f / 255.0f * (float)Red;
  m_Material.Ambient.g = 1.0f / 255.0f * (float)Green;
  m_Material.Ambient.b = 1.0f / 255.0f * (float)Blue;

  return TRUE;
}

BOOL cMaterial::GetAmbientColor(char *Red, char *Green, char *Blue)
{
  if(Red != NULL)
    *Red = (char)(255.0f * m_Material.Ambient.r);

  if(Green != NULL)
    *Green = (char)(255.0f * m_Material.Ambient.g);

  if(Blue != NULL)
    *Blue = (char)(255.0f * m_Material.Ambient.b);

  return TRUE;
}

BOOL cMaterial::SetSpecularColor(char Red, char Green, char Blue)
{
  m_Material.Specular.r = 1.0f / 255.0f * (float)Red;
  m_Material.Specular.g = 1.0f / 255.0f * (float)Green;
  m_Material.Specular.b = 1.0f / 255.0f * (float)Blue;

  return TRUE;
}

BOOL cMaterial::GetSpecularColor(char *Red, char *Green, char *Blue)
{
  if(Red != NULL)
    *Red = (char)(255.0f * m_Material.Specular.r);

  if(Green != NULL)
    *Green = (char)(255.0f * m_Material.Specular.g);

  if(Blue != NULL)
    *Blue = (char)(255.0f * m_Material.Specular.b);

  return TRUE;
}

BOOL cMaterial::SetEmissiveColor(char Red, char Green, char Blue)
{
  m_Material.Emissive.r = 1.0f / 255.0f * (float)Red;
  m_Material.Emissive.g = 1.0f / 255.0f * (float)Green;
  m_Material.Emissive.b = 1.0f / 255.0f * (float)Blue;

  return TRUE;
}

BOOL cMaterial::GetEmissiveColor(char *Red, char *Green, char *Blue)
{
  if(Red != NULL)
    *Red = (char)(255.0f * m_Material.Emissive.r);

  if(Green != NULL)
    *Green = (char)(255.0f * m_Material.Emissive.g);

  if(Blue != NULL)
    *Blue = (char)(255.0f * m_Material.Emissive.b);

  return TRUE;
}

BOOL cMaterial::SetPower(float Power)
{
  m_Material.Power = Power;
  return TRUE;
}

float cMaterial::GetPower(float Power)
{
  return m_Material.Power;
}

D3DMATERIAL8 *cMaterial::GetMaterial()
{
  return &m_Material;
}

cLight::cLight()
{
  // Set a default light to point
  ZeroMemory(&m_Light, sizeof(D3DLIGHT8));
  SetType(D3DLIGHT_POINT);
  Move(0.0f, 0.0f, 0.0f);
  SetDiffuseColor(255,255,255);
  SetAmbientColor(255,255,255);
  SetRange(1000.0f);
}

BOOL cLight::SetType(D3DLIGHTTYPE Type)
{
  m_Light.Type = Type;
  return TRUE;
}

BOOL cLight::Move(float XPos, float YPos, float ZPos)
{
  m_Light.Position.x = XPos;
  m_Light.Position.y = YPos;
  m_Light.Position.z = ZPos;
  return TRUE;
}

BOOL cLight::MoveRel(float XPos, float YPos, float ZPos)
{
  m_Light.Position.x += XPos;
  m_Light.Position.y += YPos;
  m_Light.Position.z += ZPos;
  return TRUE;
}

BOOL cLight::GetPos(float *XPos, float *YPos, float *ZPos)
{
  if(XPos != NULL)
    *XPos = m_Light.Position.x;
  if(YPos != NULL)
    *YPos = m_Light.Position.y;
  if(ZPos != NULL)
    *ZPos = m_Light.Position.z;
  return TRUE;
}

BOOL cLight::Point(float XFrom, float YFrom, float ZFrom,
                   float XAt,   float YAt,   float ZAt)
{
  D3DXVECTOR3 vecSrc;
  D3DXVECTOR3 vecDest;

  // Move the light
  Move(XFrom, YFrom, ZFrom);

  // Calculate vector between angles
  m_Light.Direction.x = XAt - XFrom;
  m_Light.Direction.y = YAt - YFrom;
  m_Light.Direction.z = ZAt - ZFrom;

  return TRUE;
}

BOOL cLight::GetDirection(float *XDir, float *YDir, float *ZDir)
{
  if(XDir != NULL)
    *XDir = m_Light.Direction.x;
  if(YDir != NULL)
    *YDir = m_Light.Direction.y;
  if(ZDir != NULL)
    *ZDir = m_Light.Direction.z;
  return TRUE;
}

BOOL cLight::SetDiffuseColor(char Red, char Green, char Blue)
{
  m_Light.Diffuse.r = 1.0f / 255.0f * (float)Red;
  m_Light.Diffuse.g = 1.0f / 255.0f * (float)Green;
  m_Light.Diffuse.b = 1.0f / 255.0f * (float)Blue;

  return TRUE;
}

BOOL cLight::GetDiffuseColor(char *Red, char *Green, char *Blue)
{
  if(Red != NULL)
    *Red = (char)(255.0f * m_Light.Diffuse.r);

  if(Green != NULL)
    *Green = (char)(255.0f * m_Light.Diffuse.g);

  if(Blue != NULL)
    *Blue = (char)(255.0f * m_Light.Diffuse.b);

  return TRUE;
}

BOOL cLight::SetSpecularColor(char Red, char Green, char Blue)
{
  m_Light.Specular.r = 1.0f / 255.0f * (float)Red;
  m_Light.Specular.g = 1.0f / 255.0f * (float)Green;
  m_Light.Specular.b = 1.0f / 255.0f * (float)Blue;

  return TRUE;
}

BOOL cLight::GetSpecularColor(char *Red, char *Green, char *Blue)
{
  if(Red != NULL)
    *Red = (char)(255.0f * m_Light.Specular.r);

  if(Green != NULL)
    *Green = (char)(255.0f * m_Light.Specular.g);

  if(Blue != NULL)
    *Blue = (char)(255.0f * m_Light.Specular.b);

  return TRUE;
}

BOOL cLight::SetAmbientColor(char Red, char Green, char Blue)
{
  m_Light.Ambient.r = 1.0f / 255.0f * (float)Red;
  m_Light.Ambient.g = 1.0f / 255.0f * (float)Green;
  m_Light.Ambient.b = 1.0f / 255.0f * (float)Blue;

  return TRUE;
}

BOOL cLight::GetAmbientColor(char *Red, char *Green, char *Blue)
{
  if(Red != NULL)
    *Red = (char)(255.0f * m_Light.Ambient.r);

  if(Green != NULL)
    *Green = (char)(255.0f * m_Light.Ambient.g);

  if(Blue != NULL)
    *Blue = (char)(255.0f * m_Light.Ambient.b);

  return TRUE;
}

BOOL cLight::SetRange(float Range)
{
  m_Light.Range = Range;
  return TRUE;
}

float cLight::GetRange()
{
  return m_Light.Range;
}

BOOL cLight::SetFalloff(float Falloff)
{
  m_Light.Falloff = Falloff;
  return TRUE;
}

float cLight::GetFalloff()
{
  return m_Light.Falloff;
}

BOOL cLight::SetAttenuation0(float Attenuation)
{
  m_Light.Attenuation0 = Attenuation;
  return TRUE;
}

float cLight::GetAttenuation0()
{
  return m_Light.Attenuation0;
}

BOOL cLight::SetAttenuation1(float Attenuation)
{
  m_Light.Attenuation1 = Attenuation;
  return TRUE;
}

float cLight::GetAttenuation1()
{
  return m_Light.Attenuation1;
}

BOOL cLight::SetAttenuation2(float Attenuation)
{
  m_Light.Attenuation2 = Attenuation;
  return TRUE;
}

float cLight::GetAttenuation2()
{
  return m_Light.Attenuation2;
}

BOOL cLight::SetTheta(float Theta)
{
  m_Light.Theta = Theta;
  return TRUE;
}

float cLight::GetTheta()
{
  return m_Light.Theta;
}

BOOL cLight::SetPhi(float Phi)
{
  m_Light.Phi = Phi;
  return TRUE;
}

float cLight::GetPhi()
{
  return m_Light.Phi;
}

D3DLIGHT8 *cLight::GetLight()
{
  return &m_Light;
}

cVertexBuffer::cVertexBuffer()
{
  m_Graphics = NULL;
  m_pVB = NULL;
  m_NumVertices = 0;
  m_FVF = 0;
  m_Locked = FALSE;
  m_Ptr = NULL;
}

cVertexBuffer::~cVertexBuffer()
{
  Free();
}

IDirect3DVertexBuffer8 *cVertexBuffer::GetVertexBufferCOM()
{
  return m_pVB;
}

unsigned long cVertexBuffer::GetVertexSize()
{
  return D3DXGetFVFVertexSize(m_FVF);
}

unsigned long cVertexBuffer::GetVertexFVF()
{
  return m_FVF;
}

unsigned long cVertexBuffer::GetNumVertices()
{
  return m_NumVertices;
}

BOOL cVertexBuffer::Create(cGraphics *Graphics, unsigned long NumVertices, DWORD Descriptor, long VertexSize)
{
  Free();

  if((m_Graphics = Graphics) == NULL)
    return FALSE;
  if(m_Graphics->GetDeviceCOM() == NULL)
    return FALSE;
  if(!(m_NumVertices = NumVertices) || !(m_FVF = Descriptor) || !(m_VertexSize = VertexSize))
    return FALSE;

  if(FAILED(m_Graphics->GetDeviceCOM()->CreateVertexBuffer(
       m_NumVertices * m_VertexSize,
       0, m_FVF,
       D3DPOOL_DEFAULT, &m_pVB)))
    return FALSE;

  return TRUE;
}

BOOL cVertexBuffer::Free()
{
  Unlock();
  ReleaseCOM(m_pVB);
  m_Graphics = NULL;
  m_NumVertices = 0;
  m_FVF = 0;
  m_Locked = FALSE;
  m_Ptr = NULL;

  return TRUE;
}

BOOL cVertexBuffer::Set(unsigned long FirstVertex, unsigned long NumVertices, void *VertexList)
{
  if(m_Graphic