272 lines
6.3 KiB
C++
272 lines
6.3 KiB
C++
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#include "StdAfx.h"
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#include "CamController.h"
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#include "Arcball.h"
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CCamController::CCamController(void) : m_fLookAtLength( 0.0f ),
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m_iPrevDownX( 0 ),
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m_iPrevDownY( 0 ),
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m_pWorldArcball( new CArcBall ),
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m_pCamArcball( new CArcBall ),
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m_vCamPos( 0.0f, 0.0f, 0.0f ),
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m_vLookAt( 0.0f, 0.0f, 0.0f ),
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m_vUp( 0.0f, 0.0f, 0.0f ),
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m_vSide( 1.0f, 0.0f, 0.0f )
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{
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EtMatrix matIdentity;
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EtMatrixIdentity( &matIdentity );
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m_matWorld = matIdentity;
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m_matNowRot = matIdentity;
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m_matLastRot = matIdentity;
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m_matTrans = matIdentity;
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m_matCamNowRot= matIdentity;
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m_matCamLastRot = matIdentity;
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m_matInvCamNowRot = matIdentity;
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m_matWorldRot = matIdentity;
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}
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CCamController::~CCamController(void)
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{
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delete m_pWorldArcball;
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delete m_pCamArcball;
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}
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void CCamController::Reset( void )
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{
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m_fLookAtLength = 0.0f;
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m_iPrevDownX = 0;
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m_iPrevDownY = 0;
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m_vCamPos = EtVector3( 0.0f, 0.0f, 0.0f );
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m_vLookAt = EtVector3( 0.0f, 0.0f, 0.0f );
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m_vUp = EtVector3( 0.0f, 0.0f, 0.0f );
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m_vSide = EtVector3( 1.0f, 0.0f, 0.0f );
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EtMatrix matIdentity;
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EtMatrixIdentity( &matIdentity );
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m_matWorld = matIdentity;
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m_matNowRot = matIdentity;
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m_matLastRot = matIdentity;
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m_matTrans = matIdentity;
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m_matCamNowRot= matIdentity;
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m_matCamLastRot = matIdentity;
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m_matInvCamNowRot = matIdentity;
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m_matWorldRot = matIdentity;
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}
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void CCamController::SetOriCamPos( const EtVector3& vCamPos )
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{
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m_vOriCamPos = vCamPos;
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SetCamPos( vCamPos );
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}
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void CCamController::SetOriLookAt( const EtVector3& vLookAt )
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{
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m_vOriLookAt = vLookAt;
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SetLookAt( vLookAt );
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}
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void CCamController::SetOriUpVector( const EtVector3& vUp )
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{
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m_vOriUp = vUp;
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SetUpVector( vUp );
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}
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void CCamController::SetCamPos( const EtVector3& vCamPos )
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{
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m_vCamPos = vCamPos;
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EtVector3 vDir = m_vCamPos - m_vLookAt;
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m_fLookAtLength = D3DXVec3Length( &vDir );
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}
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void CCamController::SetLookAt( const EtVector3& vLookAt )
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{
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m_vLookAt = vLookAt;
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EtVector3 vDir = m_vCamPos - m_vLookAt;
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m_fLookAtLength = D3DXVec3Length( &vDir );
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}
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void CCamController::SetUpVector( const EtVector3& vUp )
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{
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m_vUp = vUp;
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}
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void CCamController::SetViewMatrix( const EtMatrix& matView )
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{
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m_matView = matView;
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}
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void CCamController::SetProjMatrix( const EtMatrix& matProj )
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{
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m_matProj = matProj;
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}
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void CCamController::SetViewport( const EtViewPort& Viewport )
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{
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m_Viewport = Viewport;
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m_pWorldArcball->SetBound( (float)Viewport.Width, (float)Viewport.Height );
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m_pCamArcball->SetBound( (float)Viewport.Width, (float)Viewport.Height );
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}
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void CCamController::GetMatrix( EtMatrix& matResult )
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{
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// <20><><EFBFBD><EFBFBD> <20><>Ʈ<EFBFBD><C6AE><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ؼ<EFBFBD> <20>Ѱ<EFBFBD><D1B0>ش<EFBFBD>.
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// <20>ٶ<D9B6> <20>ִ<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ȸ<><C8B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ְ<EFBFBD>, <20>ٽ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>.
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EtMatrix matTrans, matOriTrans;
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EtMatrixTranslation( &matTrans, -m_vLookAt.x, -m_vLookAt.y, -m_vLookAt.z );
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EtMatrixTranslation( &matOriTrans, m_vLookAt.x, m_vLookAt.y, m_vLookAt.z );
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m_matWorld = matTrans * m_matNowRot * matOriTrans;
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matResult = m_matWorld;
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}
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void CCamController::_UpdatePrevDown( int iXPos, int iYPos )
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{
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m_iPrevDownX = iXPos;
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m_iPrevDownY = iYPos;
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}
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void CCamController::OnLButtonDown( int iXPos, int iYPos )
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{
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m_matLastRot = m_matNowRot;
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m_pWorldArcball->Click( iXPos, iYPos );
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}
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void CCamController::OnLButtonCon( int iXPos, int iYPos )
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{
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D3DXQUATERNION qRot;
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m_pWorldArcball->Drag( iXPos, iYPos, &qRot );
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EtMatrixRotationQuaternion( &m_matNowRot, &qRot );
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// <20><><EFBFBD><EFBFBD> <20><><EFBFBD>带 ī<><EFBFBD><DEB6><EFBFBD> <20>信 <20><><EFBFBD>߰<EFBFBD> ȸ<><C8B8><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ٽ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD> <20><><EFBFBD><EFBFBD> <20><>Ų<EFBFBD><C5B2>.
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// <20><EFBFBD><D7B7><EFBFBD> ī<><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><>ȯ<EFBFBD><C8AF> ȸ<><C8B8> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>´<EFBFBD>.
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m_matNowRot = m_matCamNowRot * m_matNowRot * m_matInvCamNowRot;
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EtMatrixMultiply( &m_matNowRot, &m_matLastRot, &m_matNowRot );
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}
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void CCamController::OnRButtonDown( int iXPos, int iYPos )
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{
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m_matCamLastRot = m_matCamNowRot;
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m_pCamArcball->Click( iXPos, iYPos );
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}
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void CCamController::OnRButtonCon( int iXPos, int iYPos )
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{
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D3DXQUATERNION qRot;
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m_pCamArcball->Drag( iXPos, iYPos, &qRot );
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EtMatrixRotationQuaternion( &m_matCamNowRot, &qRot );
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EtMatrixMultiply( &m_matCamNowRot, &m_matCamLastRot, &m_matCamNowRot );
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EtMatrixInverse( &m_matInvCamNowRot, NULL, &m_matCamNowRot );
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EtVector3 vResultCamPos, vResultUp;
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// <20><><EFBFBD><EFBFBD> <20><>ǥ<EFBFBD><C7A5><EFBFBD><EFBFBD> ȸ<><C8B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>Ѵ<EFBFBD>.
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// Look At <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>־<EFBFBD><D6BE><EFBFBD><EFBFBD><EFBFBD>~
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EtVector3 vLocalCamPos = m_vOriCamPos - m_vOriLookAt;
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D3DXVec3TransformCoord( &vResultCamPos, &vLocalCamPos/*m_vOriCamPos*/, &m_matInvCamNowRot );
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D3DXVec3TransformCoord( &vResultUp, &m_vOriUp, &m_matInvCamNowRot );
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m_vCamPos = vResultCamPos + m_vOriLookAt;
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m_vUp = vResultUp;
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// Side<64><65><EFBFBD><EFBFBD> <20><><EFBFBD>ϱ<EFBFBD>. bintitle.
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EtVector3 vDir = m_vCamPos - m_vLookAt;
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EtVec3Normalize( &vDir, &vDir );
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EtVec3Cross( &m_vSide, &EtVector3(0.0f,1.0f,0.0f), &vDir );
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EtVec3Normalize( &m_vSide, &m_vSide );
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}
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void CCamController::OnCButtonDown( int iXPos, int iYPos )
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{
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_UpdatePrevDown( iXPos, iYPos );
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}
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void CCamController::OnCButtonCon( int iXPos, int iYPos )
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{
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// <20>̰<EFBFBD> <20><><EFBFBD><EFBFBD> ī<><EFBFBD><DEB6><EFBFBD> <20>̵<EFBFBD><CCB5><EFBFBD><EFBFBD><EFBFBD> <20>ֵ<EFBFBD><D6B5><EFBFBD> <20><><EFBFBD><EFBFBD>.
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// Look at <20><> <20><><EFBFBD>Ѵ<EFBFBD>.
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int iXDelta = iXPos - m_iPrevDownX;
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int iYDelta = iYPos - m_iPrevDownY;
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// <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>Ѵ<EFBFBD>.
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EtVector3 vStart, vEnd;
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EtVector3 vPrevPos( (float)m_iPrevDownX, (float)m_iPrevDownY, 0.0f ), vNowPos( (float)iXPos, (float)iYPos, 0.0f );
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EtVec3Unproject( &vStart, &vPrevPos, &m_Viewport, &m_matProj, &m_matView, &m_matWorld );
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EtVec3Unproject( &vEnd, &vNowPos, &m_Viewport, &m_matProj, &m_matView, &m_matWorld );
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EtVector3 vDir = vEnd - vStart;
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// ī<><EFBFBD><DEB6><EFBFBD> <20><><EFBFBD><EFBFBD> <20>̵<EFBFBD><CCB5>ȴ<EFBFBD>.
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EtVector3 vDelta = vDir * m_fLookAtLength;
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m_vCamPos -= vDelta;
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m_vLookAt -= vDelta;
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m_vOriCamPos -= vDelta;
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m_vOriLookAt -= vDelta;
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_UpdatePrevDown( iXPos, iYPos );
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}
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void CCamController::OnMouseWheel( int iWheelDelta )
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{
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EtVector3 vDir = m_vCamPos - m_vLookAt;
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m_vCamPos += (vDir * ((float)iWheelDelta / 1000.0f));
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vDir = m_vOriCamPos - m_vOriLookAt;
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m_vOriCamPos += (vDir * ((float)iWheelDelta / 1000.0f));
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// ī<><EFBFBD><DEB6><EFBFBD> look at <20>Ÿ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ʈ
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m_fLookAtLength = D3DXVec3Length( &vDir );
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}
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void CCamController::OnMoveFrontAndBack( float fSpeed )
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{
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EtVector3 vDir = m_vCamPos - m_vLookAt;
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D3DXVec3Normalize( &vDir, &vDir );
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m_vCamPos += ( vDir * fSpeed );
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m_vOriCamPos = m_vCamPos;
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}
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void CCamController::OnMoveLeftAndRight( float fSpeed )
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{
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EtVector3 vDir( m_vSide * fSpeed );
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m_vCamPos += vDir;
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m_vLookAt += vDir;
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m_vOriCamPos = m_vCamPos;
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}
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