directxfont.cpp

这个是我第一次完成的一个简单的3D ALIEN SHOOTING GAME的RESOURCE MANAGER部分,大家可以看看,然后提点意见~THX

// DirectXFont.cpp
//

#include "Common.h"
#include "DirectXFont.h"

using namespace std;
using namespace Resources;


// DirectXFont - Construction and deconstruction.

DirectXFont::DirectXFont()
: m_pFont(NULL)
{
}

DirectXFont::DirectXFont(LPCSTR lpszFontName,
						 INT nHeight,
						 UINT nWidth,
						 bool bBold,
						 bool bItalic,
						 UINT nMipLevels,
						 LPCSTR lpszTypeFace)
: m_pFont(NULL)
{
	// Create font from specified paramaters.
	if(FAILED(SetFont(lpszFontName, nHeight, nWidth, bBold,
		bItalic, nMipLevels, lpszTypeFace)))
	{
		// Generate exception and then throw it.
		ResException e = ResException::UnableToCreate EXTRA_DEBUGINFO;

		string szExtraInfo = "DirectXFont - ";
		szExtraInfo += lpszFontName;
		e.SetExtraInfo(szExtraInfo.c_str());

		throw e;
	}
}

DirectXFont::~DirectXFont()
{
}


HRESULT DirectXFont::SetFont(LPCSTR lpszFontName,
							 INT nHeight,
							 UINT nWidth,
							 bool bBold,
							 bool bItalic,
							 UINT nMipLevels,
							 LPCSTR lpszTypeFace)
{
	// Destroy any existing font.
	Destroy();

	// Attempt to create font.
	HRESULT hResult = D3DXCreateFont(ResourceManager::GetActiveDevice(),
		nHeight, nWidth, bBold == TRUE ? 10 : 0, nMipLevels, bItalic,
		NULL, NULL, NULL, NULL, lpszTypeFace, &m_pFont);

	if(FAILED(hResult)) return hResult;

	// If the font was not created then return with error.
	if(m_pFont == NULL)
		return E_FAIL;

	SetFilePath(lpszFontName);

	return NOERROR;
}

void DirectXFont::CleanUp()
{
	// Free font from memory, if any.
	if(m_pFont != NULL)
	{
		m_pFont->Release();
		m_pFont = NULL;
	}
}


// DirectXFont - Functions which must be overriden.

DWORD DirectXFont::GetUniqueID() const
{
	return DIRECTX_FONT;
}


// DirectXFont - Functions which can be overriden.

void DirectXFont::OnDestroy()
{
	// Clean up texture object.
	CleanUp();
}


// DirectXFont - Rendering.

void DirectXFont::DrawText(LPD3DXSPRITE pSprite,
						   LPCSTR lpszString,
						   int nLength,
						   RECT& rtRectOut,
						   DWORD dwFormat,
						   D3DCOLOR rgbColour)
{
	// Draw text to sprite specified.
	m_pFont->DrawText(pSprite, lpszString, nLength, &rtRectOut,
		dwFormat, rgbColour);
}