图形学实验

天津理工大学实验报告学院（系）名称：计算机与通信工程学院

class CRole:public CActiveObj游戏中的人物

virtual void EndRender(void);渲染后操作

virtual void OnRender(void)渲染人物

说明类的继承关系

功能函数的流程图

这里主要列举了几个功能的流程图：

1.声音播放函数：

Play(DWORD loop)

{

if( bEnable==FALSE || !DSSoundFX )

return;

DWORD *Status1=NULL;

if( (DSSoundFX->GetStatus(Status1))!=DS_OK )

goto _next;

if( (*Status1 & DSBSTATUS_PLAYING) == DSBSTA TUS_PLAYING )

return;

_next:

DSSoundFX->SetCurrentPosition(0);

if( loop==-1 )

loop=DSBPLAY_LOOPING; //循环播放

DSSoundFX->Play(0,0,loop);

}

声音播放功能函数的流程图：

2.用鼠标实现输入功能的函数:

Update(){

if (FAILED(m_pDIDev->GetDeviceState(sizeof(DIMOUSESTATE), &m_state)))

{

if (FAILED(m_pDIDev->Acquire()))

{

return FALSE;

}

if (FAILED(m_pDIDev->GetDeviceState(sizeof(DIMOUSESTA TE), &m_state)))

{

return FALSE;

}

}

m_sMousePos.x+=m_state.lX;

m_sMousePos.y-=m_state.lY;

if(m_sMousePos.x<0)m_sMousePos.x=0;

if(m_sMousePos.x>m_iWidth)m_sMousePos.x=m_iWidth;

if(m_sMousePos.y<0)m_sMousePos.y=0;

if(m_sMousePos.y>m_iHeight)m_sMousePos.y=m_iHeight;

return TRUE;

}

用鼠标实现输入功能的流程图:

3. 3d图片文件的显示功能的函数：

Render()

{

glEnable(GL_TEXTURE_2D);

glColor3f(1.f,1.f,1.f);

int triangleIndex;

int index;

for (unsigned short i = 0; i < m_numMeshes; ++i )

{

m_pTexture[m_pMeshes[i].m_textureIndex].Bind(0);

glBegin( GL_TRIANGLES );

for (unsigned short j = 0; j < m_pMeshes[i].m_numTriangles; ++j )

{

triangleIndex = m_pMeshes[i].m_pTriangleIndices[j];

for (unsigned int k = 0; k < 3; ++k )

{

index = m_pTriangles[triangleIndex].m_vertexIndices[k];

glNormal3fv( m_pTriangles[triangleIndex].m_normal );

glTexCoord2f( m_pTriangles[triangleIndex].m_u[k], m_pTriangles[triangleIndex].m_v[k] );

glVertex3fv( m_pVertices[index].m_location );

}

}

glEnd();

}

glDisable(GL_TEXTURE_2D);

}

3d图片文件的显示功能的流程图：

4.游戏场景天空的场景显示函数：

Render()

{

CCamera::GetCameraPointer()->GetCameraPos(&m_sCameraPos);

texture.Bind(0);

glDisable(GL_DEPTH_TEST);

glEnable(GL_TEXTURE_2D);

glPushMatrix();

glTranslatef(m_sCameraPos.x,-40,m_sCameraPos.z-CCamera::GetCameraPointer()->GetDestToRole());

glRotatef(yrot,0.f,1.f,0.f);

glColor3f(1.f,1.f,1.f);

glBegin(GL_TRIANGLE_FAN);

glTexCoord2f(0.5,0.5);

glVertex3f(0,300,0);

glTexCoord2f(0,0);

glVertex3f(-300,0, 300);

glTexCoord2f(1,0);

glVertex3f(-300,0,-300);

glTexCoord2f(1,1);

glVertex3f( 300,0,-300);

glTexCoord2f(0,1);

glVertex3f( 300,0, 300);

glTexCoord2f(0,0);

glVertex3f(-300,0, 300);

glEnd();

glPopMatrix();

glDisable(GL_TEXTURE_2D);

glEnable(GL_DEPTH_TEST);

yrot += 0.04f;

if(yrot > 360.0f)yrot -= 360.0f;

}

游戏场景天空的场景显示的流程图：

5.消息处理功能函数：

Run()

{

if(GetMsgNum()<=0)return;

switch(m_dQueue[0].msg)

{

case MSG_PLAY_MUSIC:

if(CMusic::GetSysMusic()->IsPlay())CMusic::GetSysMusic()->Stop();

CMusic::GetSysMusic()->LoadMusic(m_dQueue[0].str1);