VOID CEngineInterface::Camera_SetZoom(BOOL bUp, INT multiple)
{
const FLOAT ZOOMSPEED = 0.05f;
//
FLOAT fZoom = (m_pCamera_Current->GetDistance() - CCamera_Scene::MIN_DISTANCE) / (CCamera_Scene::MAX_DISTANCE - CCamera_Scene::MIN_DISTANCE);
// 获取当前的Pitch
FLOAT fPitch = m_pCamera_Current->GetApprochPitch();
// 计算Pitch步长值
static FLOAT fProportion = (CCamera_Scene::STATIC_PITCH - CCamera_Scene::APPROCH_PITCH) * (ZOOMSPEED * multiple);
// 接近人物
if( bUp )
{
//
fZoom -= (ZOOMSPEED * multiple);
if( fZoom < 0.0f )
fZoom = 0.0f;
// if( (m_fParallelOffset > 0.0f) || (m_fParallelOffset < 0.0f) )
// m_fParallelOffset = m_fOldParallelOffset + ( 1 - fZoom );
// 数值由小到大
fPitch -= fProportion;
if( fPitch > CCamera_Scene::APPROCH_PITCH )
fPitch = CCamera_Scene::APPROCH_PITCH;
}
// 远离人物
else
{
//
fZoom += (ZOOMSPEED * multiple);
if( fZoom > 1.0f )
fZoom = 1.0f;
// if( (m_fParallelOffset > 0.0f) || (m_fParallelOffset < 0.0f) )
// m_fParallelOffset = m_fOldParallelOffset - ( 1 - fZoom );
// 数值由大到小
fPitch += fProportion;
if( fPitch < CCamera_Scene::STATIC_PITCH )
fPitch = CCamera_Scene::STATIC_PITCH;
}
//& 根据拉进或拉远来修正这个值， APPROCH_PITCH是最终趋近的判定值， 在Game.cfg中添写
// 这里设置完值后最终通过camera的更新来修正pitch
m_pCamera_Scene->SetApprochPitch(fPitch);
Camera_SetZoom(fZoom);
// 根据距离来影响偏移量
// Camera_SetLookAt( m_pCamera_Scene->GetGameLookAt() );
}
VOID CRenderSystem::Camera_SetZoom(BOOL bUp,INT multiple)
{
const FLOAT ZOOMSPEED = 0.05f;
FLOAT fZoom = (m_pCamera_Current->GetDistance()-CCamera_Scene::MIN_DISTANCE)/(CCamera_Scene::MAX_DISTANCE-CCamera_Scene::MIN_DISTANCE);
if (bUp)
{
fZoom-=(ZOOMSPEED*multiple);
if (fZoom<0.0f) fZoom=0.0f;
}
else
{
fZoom+=(ZOOMSPEED*multiple);
if (fZoom>1.0f) fZoom=1.0f;
}
Camera_SetZoom(fZoom);
}
