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Documentation                       Search   event_mouse_listener.cpp Go to the documentation of this file. /* Copyright, 2000 Nevrax Ltd. * * This file is part of NEVRAX NEL. * NEVRAX NEL is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * NEVRAX NEL is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * You should have received a copy of the GNU General Public License * along with NEVRAX NEL; see the file COPYING. If not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, * MA 02111-1307, USA. */ #include "std3d.h" #include "3d/event_mouse_listener.h" #include "nel/misc/event_server.h" #include "3d/camera.h" #include "nel/misc/time_nl.h" #include "nel/misc/quat.h" using namespace NLMISC; namespace NL3D { CEvent3dMouseListener::CEvent3dMouseListener() : _CurrentModelRotationAxis(zAxis) ,_XModelTranslateEnabled(true) ,_YModelTranslateEnabled(true) ,_ZModelTranslateEnabled(true) { _Matrix.identity(); _ModelMatrix.identity() ; _EnableModelMatrixEdition = false ; _HotSpot.set (0,0,0); _Viewport.initFullScreen(); _Frustrum.init (2.f, 2.f, -1.f, 1.f); _MouseMode=nelStyle; setSpeed (10.f); _LastTime=CTime::getLocalTime (); _TranslateXYInWorld= false; } void CEvent3dMouseListener::enableModelTranslationAxis(TAxis axis, bool enabled) { switch (axis) { case xAxis: _XModelTranslateEnabled = enabled ; break ; case yAxis: _YModelTranslateEnabled = enabled ; break ; case zAxis: _ZModelTranslateEnabled = enabled ; break ; } } bool CEvent3dMouseListener::isModelTranslationEnabled(TAxis axis) { switch (axis) { case xAxis: return _XModelTranslateEnabled ; break ; case yAxis: return _YModelTranslateEnabled ; break ; case zAxis: return _ZModelTranslateEnabled ; break ; default: return false ; break ; } } void CEvent3dMouseListener::truncateVect(CVector &v) { if (!_XModelTranslateEnabled) v.x = 0.f ; if (!_YModelTranslateEnabled) v.y = 0.f ; if (!_ZModelTranslateEnabled) v.z = 0.f ; } void CEvent3dMouseListener::operator ()(const CEvent& event) { CEventMouse* mouseEvent=(CEventMouse*)&event; if (event==EventMouseMoveId) { bool bRotate=false; bool bTranslateXY=false; bool bTranslateZ=false; bool bZoom=false; // Rotate Axis CVector axis; if (_MouseMode==nelStyle) { bRotate=(mouseEvent->Button==(ctrlButton|rightButton)); bTranslateXY=(mouseEvent->Button==(ctrlButton|leftButton)); bTranslateZ=(mouseEvent->Button==(ctrlButton|shiftButton|leftButton)); bZoom=(mouseEvent->Button==(altButton|leftButton)); axis=_HotSpot; } else if (_MouseMode==edit3d) { bRotate=(mouseEvent->Button==(altButton|middleButton)) || (mouseEvent->Button==(altButton|leftButton)); bTranslateXY=(mouseEvent->Button==(ctrlButton|leftButton)) || (mouseEvent->Button==middleButton); bTranslateZ=(mouseEvent->Button==(ctrlButton|shiftButton|leftButton)) || (mouseEvent->Button==(ctrlButton|middleButton)); bZoom=(mouseEvent->Button==(shiftButton|leftButton)) || (mouseEvent->Button==(ctrlButton|altButton|middleButton)); axis=_HotSpot; } else // if (_MouseMode==firstPerson) { bRotate=(mouseEvent->Button&leftButton)!=0; bTranslateXY=false; bTranslateZ=false; bZoom=false; axis=_Matrix.getPos(); } if (bRotate) { if (!_EnableModelMatrixEdition) { // First in the hotSpot CMatrix comeFromHotSpot=_Matrix; comeFromHotSpot.setPos (axis); // Then turn along the Z axis with X mouse CMatrix turnZ; turnZ.identity(); turnZ.rotateZ ((float) Pi*2.f*(_X-mouseEvent->X)); // Then turn along the X axis with Y mouse CMatrix turnX; turnX.identity(); turnX.rotateX ((float) Pi*2.f*(mouseEvent->Y-_Y)); // Then come back from hotspot CMatrix goToHotSpot=comeFromHotSpot; goToHotSpot.invert(); // Make the matrix CMatrix negPivot, Pivot; negPivot.identity(); negPivot.setPos (-axis); Pivot.identity(); Pivot.setPos (axis); // Make this transformation \\// //_Matrix=Pivot*turnZ*negPivot*comeFromHotSpot*turnX*goToHotSpot*_Matrix; Pivot*=turnZ; Pivot*=negPivot; Pivot*=comeFromHotSpot; Pivot*=turnX; Pivot*=goToHotSpot; Pivot*=_Matrix; _Matrix=Pivot; // Normalize, too much transformation could give an ugly matrix.. _Matrix.normalize (CMatrix::XYZ); } else { CVector pos = _ModelMatrix.getPos() ; NLMISC::CQuat r ; switch (_CurrentModelRotationAxis) { case xAxis : r = CQuat(CAngleAxis(_ModelMatrix.getI(), (float) Pi*2.f*(_X-mouseEvent->X))) ; break ; case yAxis : r = CQuat(CAngleAxis(_ModelMatrix.getJ(), (float) Pi*2.f*(_X-mouseEvent->X))) ; break ; case zAxis : r = CQuat(CAngleAxis(_ModelMatrix.getK(), (float) Pi*2.f*(_X-mouseEvent->X))) ; break ; } ; CMatrix rm ; rm.rotate(r) ; _ModelMatrix = rm * _ModelMatrix ; _ModelMatrix.setPos(pos) ; _ModelMatrix.normalize (CMatrix::XYZ); } } if (bTranslateXY||bTranslateZ||bZoom) { // Move in plane CPlane plane; // For precision problem, do all the compute local to the hotspot/model. CVector decal; // Plane of the hotspot if (! _EnableModelMatrixEdition) { decal= axis; } else { decal= _ModelMatrix.getPos(); } // Choose plane to move on if (bTranslateXY && _TranslateXYInWorld) { plane.make (CVector::K, CVector::Null); } else { plane.make (_Matrix.getJ(), CVector::Null); } // Get ray from mouse point CMatrix localViewMatrix= _Matrix; localViewMatrix.setPos(_Matrix.getPos() - decal); CVector localPoint1, localPoint2; CVector pos, dir; _Viewport.getRayWithPoint (_X, _Y, pos, dir, localViewMatrix, _Frustrum); localPoint1=plane.intersect (pos, pos+dir); _Viewport.getRayWithPoint (mouseEvent->X, mouseEvent->Y, pos, dir, localViewMatrix, _Frustrum); localPoint2=plane.intersect (pos, pos+dir); // Move the camera if (bTranslateXY) { if (! _EnableModelMatrixEdition) { _Matrix.setPos(_Matrix.getPos()+localPoint1-localPoint2); } else { CVector dir = - localPoint1 + localPoint2 ; // transform the translation as needed. dir= _ModelMatrixTransformMove * dir; truncateVect(dir) ; _ModelMatrix.setPos(_ModelMatrix.getPos()+dir); } } else if (bTranslateZ) { CVector vect=localPoint1-localPoint2; if (! _EnableModelMatrixEdition) { _Matrix.setPos(_Matrix.getPos()+_Matrix.getK()*(vect.x+vect.y+vect.z)); } else { CVector dir = _Matrix.getK()*(vect.x+vect.y+vect.z) ; // transform the translation as needed. dir= _ModelMatrixTransformMove * dir; truncateVect(dir) ; _ModelMatrix.setPos(_ModelMatrix.getPos()+dir); } } else if (bZoom) { CVector vect=localPoint1-localPoint2; CVector direc=axis-_Matrix.getPos(); direc.normalize(); if (! _EnableModelMatrixEdition) { _Matrix.setPos(_Matrix.getPos()+direc*(vect.x+vect.y+vect.z)); } else { // transform the translation as needed. direc= _ModelMatrixTransformMove * direc; direc.normalize(); _ModelMatrix.setPos(_ModelMatrix.getPos()+direc*(vect.x+vect.y+vect.z)); } } } // Update mouse position _X=mouseEvent->X; _Y=mouseEvent->Y; } else if (event==EventMouseDownId) { // Update mouse position _X=mouseEvent->X; _Y=mouseEvent->Y; } else if (event==EventMouseUpId) { // Update mouse position _X=mouseEvent->X; _Y=mouseEvent->Y; } else if (event==EventMouseWheelId) { // Zoom.. CEventMouseWheel* mouseEvent=(CEventMouseWheel*)&event; CVector direc=_HotSpot-_Matrix.getPos(); if (! _EnableModelMatrixEdition) { _Matrix.setPos(_Matrix.getPos()+direc*(mouseEvent->Direction?0.1f:-0.1f)); } else { CVector dir = direc*(mouseEvent->Direction?0.1f:-0.1f) ; // transform the translation as needed. dir= _ModelMatrixTransformMove * dir; truncateVect(dir) ; _ModelMatrix.setPos(_ModelMatrix.getPos() + dir); } } } void CEvent3dMouseListener::addToServer (CEventServer& server) { server.addListener (EventMouseMoveId, this); server.addListener (EventMouseDownId, this); server.addListener (EventMouseUpId, this); server.addListener (EventMouseWheelId, this); _AsyncListener.addToServer (server); } void CEvent3dMouseListener::removeFromServer (CEventServer& server) { server.removeListener (EventMouseMoveId, this); server.removeListener (EventMouseDownId, this); server.removeListener (EventMouseUpId, this); server.removeListener (EventMouseWheelId, this); _AsyncListener.removeFromServer (server); } const NLMISC::CMatrix& CEvent3dMouseListener::getViewMatrix () { // Mode first person ? if (_MouseMode==firstPerson) { // CVector CVector dir (0,0,0); bool find=false; // Key pushed ? if (_AsyncListener.isKeyDown (KeyUP)) { dir+=CVector (0, 1, 0); find=true; } if (_AsyncListener.isKeyDown (KeyDOWN)) { dir+=CVector (0, -1, 0); find=true; } if (_AsyncListener.isKeyDown (KeyRIGHT)) { dir+=CVector (1, 0, 0); find=true; } if (_AsyncListener.isKeyDown (KeyLEFT)) { dir+=CVector (-1, 0, 0); find=true; } if (_AsyncListener.isKeyDown (KeyNEXT)) { dir+=CVector (0, 0, -1); find=true; } if (_AsyncListener.isKeyDown (KeyPRIOR)) { dir+=CVector (0, 0, 1); find=true; } // key found ? if (find) { // Time elapsed uint32 milli=(uint32)(CTime::getLocalTime ()-_LastTime); // Speed float dPos=_Speed*(float)milli/1000.f; // Good direction dir.normalize (); dir*=dPos; // Orientation dir=_Matrix.mulVector (dir); // New position _Matrix.setPos (_Matrix.getPos ()+dir); } } // Last time _LastTime=CTime::getLocalTime (); // Return the matrix return _Matrix; } void CEvent3dMouseListener::enableTranslateXYInWorld(bool enabled) { _TranslateXYInWorld= enabled; } void CEvent3dMouseListener::setModelMatrixTransformMove(const NLMISC::CMatrix& transModelMove) { _ModelMatrixTransformMove= transModelMove; } void CEvent3dMouseListener::getModelMatrixTransformMove(NLMISC::CMatrix& transModelMove) const { transModelMove= _ModelMatrixTransformMove; } }; // NL3D