skybox.cpp

骨骼动画 此程序演示了如何在你的游戏中使用骨骼动画技术。

#include "skybox.h"
//#include "Camera.h"

void BoxVertex::SetVertex( float fx, float fy, float fz, float ftu, float ftv )
{
	x = fx;
	y = fy;
	z = fz;
	tu = ftu;
	tv = ftv;
}


CSkyBox::CSkyBox( void ) :
m_fDistance( 300.f ),
m_pBoxVB( NULL )
{

}

CSkyBox::~CSkyBox( void )
{
	SAFE_RELEASE( m_pBoxVB );

	for ( int i = 0; i < 6; ++i )
	{
		SAFE_RELEASE( m_pBoxTextures[i] );
	}

}

void CSkyBox::Init( LPSTR pPrefix, 	LPDIRECT3DDEVICE9 pDevice )
{
	m_pDevice = pDevice;
	string TextureName;
	for( int i = 0; i < 6; ++i )
	{
		TextureName = pPrefix;
		switch(i)
		{
		case BP_FRONT:
			TextureName += "FT";
			break;
		case BP_BACK:
			TextureName += "BK";
			break;
		case BP_LEFT:
			TextureName += "LT";
			break;
		case BP_RIGHT:
			TextureName += "RT";
			break;
		case BP_UP:
			TextureName += "UP";
			break;
		case BP_DOWN:
			TextureName += "DN";
			break;
		}
		TextureName += ".jpg";
		D3DXCreateTextureFromFile( m_pDevice, 
			TextureName.c_str(), &m_pBoxTextures[i] );
	}

	// front
	m_BoxVertices[0].SetVertex(  -m_fDistance, m_fDistance,-m_fDistance,  0.0f,0.0f );
	m_BoxVertices[1].SetVertex(   m_fDistance, m_fDistance,-m_fDistance,  1.0f,0.0f );
	m_BoxVertices[2].SetVertex(  -m_fDistance,-m_fDistance,-m_fDistance,  0.0f,1.0f );
	m_BoxVertices[3].SetVertex(   m_fDistance,-m_fDistance,-m_fDistance,  1.0f,1.0f );

	// back
	m_BoxVertices[4].SetVertex(  -m_fDistance, m_fDistance, m_fDistance,  1.0f,0.0f );
	m_BoxVertices[5].SetVertex(  -m_fDistance,-m_fDistance, m_fDistance,  1.0f,1.0f );
	m_BoxVertices[6].SetVertex(   m_fDistance, m_fDistance, m_fDistance,  0.0f,0.0f );
	m_BoxVertices[7].SetVertex(   m_fDistance,-m_fDistance, m_fDistance,  0.0f,1.0f );

	// top
	m_BoxVertices[8].SetVertex(  -m_fDistance, m_fDistance, m_fDistance,  0.0f,0.0f );
	m_BoxVertices[9].SetVertex(   m_fDistance, m_fDistance, m_fDistance,  1.0f,0.0f );
	m_BoxVertices[10].SetVertex( -m_fDistance, m_fDistance,-m_fDistance,  0.0f,1.0f );
	m_BoxVertices[11].SetVertex(  m_fDistance, m_fDistance,-m_fDistance,  1.0f,1.0f );

	// bottom
	m_BoxVertices[12].SetVertex( -m_fDistance,-m_fDistance, m_fDistance,  0.0f,1.0f );
	m_BoxVertices[13].SetVertex( -m_fDistance,-m_fDistance,-m_fDistance,  0.0f,0.0f );
	m_BoxVertices[14].SetVertex(  m_fDistance,-m_fDistance, m_fDistance,  1.0f,1.0f );
	m_BoxVertices[15].SetVertex(  m_fDistance,-m_fDistance,-m_fDistance,  1.0f,0.0f );

	// right
	m_BoxVertices[16].SetVertex(  m_fDistance, m_fDistance,-m_fDistance,  0.0f,0.0f );
	m_BoxVertices[17].SetVertex(  m_fDistance, m_fDistance, m_fDistance,  1.0f,0.0f );
	m_BoxVertices[18].SetVertex(  m_fDistance,-m_fDistance,-m_fDistance,  0.0f,1.0f );
	m_BoxVertices[19].SetVertex(  m_fDistance,-m_fDistance, m_fDistance,  1.0f,1.0f );

	// left
	m_BoxVertices[20].SetVertex( -m_fDistance, m_fDistance,-m_fDistance,  1.0f,0.0f );
	m_BoxVertices[21].SetVertex( -m_fDistance,-m_fDistance,-m_fDistance,  1.0f,1.0f );
	m_BoxVertices[22].SetVertex( -m_fDistance, m_fDistance, m_fDistance,  0.0f,0.0f );
	m_BoxVertices[23].SetVertex( -m_fDistance,-m_fDistance, m_fDistance,  0.0f,1.0f );

	m_pDevice->CreateVertexBuffer( 24* sizeof(BoxVertex), D3DUSAGE_WRITEONLY,
		BoxVertex::FVF_Flags, D3DPOOL_DEFAULT, &m_pBoxVB, 0 );

	void* pBuffer = NULL;
	m_pBoxVB->Lock( 0, 24* sizeof(BoxVertex), &pBuffer, 0 );
	memcpy( pBuffer, m_BoxVertices, 24* sizeof(BoxVertex) );
	m_pBoxVB->Unlock();
 
}

void CSkyBox::Render(D3DXMATRIX matWorld1 )
{
	m_matWorld = matWorld1;
	m_pDevice->SetTransform( D3DTS_WORLD, &m_matWorld );
	m_pDevice->SetRenderState( D3DRS_ALPHABLENDENABLE, FALSE );
	m_pDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE );
	m_pDevice->SetRenderState( D3DRS_ZWRITEENABLE, FALSE );
	m_pDevice->SetRenderState( D3DRS_FOGENABLE, FALSE );
	m_pDevice->SetSamplerState( 0, D3DSAMP_ADDRESSU, D3DTADDRESS_CLAMP );
	m_pDevice->SetSamplerState( 0, D3DSAMP_ADDRESSV, D3DTADDRESS_CLAMP );
	m_pDevice->SetSamplerState( 0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR );
	m_pDevice->SetSamplerState( 0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR );
	m_pDevice->SetStreamSource( 0, m_pBoxVB, 0, sizeof(BoxVertex) );
	m_pDevice->SetFVF( BoxVertex::FVF_Flags );

	for( int i = 0; i < 6; ++i )
	{
		m_pDevice->SetTexture( 0, m_pBoxTextures[i] );
		m_pDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP,  i*4, 2 );
	}
	m_pDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE );
	m_pDevice->SetRenderState( D3DRS_ZWRITEENABLE, TRUE );

}