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00039 #include "OSGConfig.h"
00040 #include "OSGBaseTypes.h"
00041 #include "OSGMatrix.h"
00042 #include "OSGMatrixUtility.h"
00043
00044 #include "OSGFlyEngine.h"
00045 #include "OSGNavigator.h"
00046 #include "OSGNode.h"
00047 #include "OSGCamera.h"
00048 #include "OSGBackground.h"
00049
00050 OSG_USING_NAMESPACE
00051
00052
00053
00054
00055
00084
00085
00086 FlyEngineTransitPtr
00087 FlyEngine::create(void)
00088 {
00089 return FlyEngineTransitPtr(new FlyEngine);
00090 }
00091
00092
00093
00096 const Pnt3f &FlyEngine::getFrom()
00097 {
00098 return _rFrom;
00099 }
00100
00103 const Pnt3f &FlyEngine::getAt()
00104 {
00105 return _rAt;
00106 }
00107
00110 const Vec3f &FlyEngine::getUp()
00111 {
00112 return _vUp;
00113 }
00114
00117 const Matrix &FlyEngine::getMatrix()
00118 {
00119 MatrixLookAt(_tMatrix,_rFrom,_rAt,_vUp);
00120 return _tMatrix;
00121 }
00122
00125
00126 Real32 FlyEngine::getDistance()
00127 {
00128 return 0.0f;
00129 }
00130
00131
00132
00136 void FlyEngine::setFrom(Pnt3f new_from)
00137 {
00138 _rFrom=new_from;
00139 }
00140
00143 void FlyEngine::setAt(Pnt3f new_At)
00144 {
00145 _rAt=new_At;
00146 }
00147
00150 void FlyEngine::setUp(Vec3f new_up)
00151 {
00152 _vUp=new_up;
00153 }
00154
00157 void FlyEngine::set(Pnt3f new_from,Pnt3f new_At,Vec3f new_up)
00158 {
00159 _rFrom=new_from;
00160 _rAt=new_At;
00161 _vUp=new_up;
00162 }
00163
00166 void FlyEngine::set(const Matrix& new_matrix)
00167 {
00168 _rFrom= Pnt3f(new_matrix[3]);
00169 _rAt = Pnt3f(new_matrix[3] - new_matrix[2]);
00170 _vUp = Vec3f(new_matrix[1]);
00171
00172 set(_rFrom, _rAt, _vUp);
00173 }
00174
00177 void FlyEngine::setDistance(Real32 dist)
00178 {
00179 forward(dist);
00180 }
00181
00182
00183
00184 void FlyEngine::buttonPress(Int16 button, Int16 x, Int16 y, Navigator* nav)
00185 {
00186 switch (button)
00187 {
00188 case Navigator::LEFT_MOUSE:
00189 _currentState = Navigator::TRANSLATING_ZPLUS;
00190 break;
00191 case Navigator::MIDDLE_MOUSE:
00192 _currentState = Navigator::ROTATING;
00193 break;
00194 case Navigator::RIGHT_MOUSE:
00195 _currentState = Navigator::TRANSLATING_ZMINUS;
00196 break;
00197 case Navigator::UP_MOUSE:
00198 _currentState = Navigator::IDLE;
00199 forward(-nav->getMotionFactor());
00200 break;
00201 case Navigator::DOWN_MOUSE:
00202 _currentState = Navigator::IDLE;
00203 forward(nav->getMotionFactor());
00204 break;
00205 default:
00206 FNOTICE(("FlyEngine: buttonPress, unknown button\n"));
00207 break;
00208 }
00209 }
00210
00211 void FlyEngine::buttonRelease(Int16 button, Int16 x,Int16 y,Navigator* nav)
00212 {
00213 _currentState = Navigator::IDLE;
00214 }
00215
00216 void FlyEngine::keyPress(Int16 key, Int16 x,Int16 y,Navigator* nav)
00217 {
00218 switch (key)
00219 {
00220 case Navigator::LEFTROT:
00221 rotate(-nav->getRotationAngle(), 0);
00222 break;
00223 case Navigator::RIGHTROT:
00224 rotate(nav->getRotationAngle(), 0);
00225 break;
00226 case Navigator::LEFT:
00227 right(nav->getMotionFactor());
00228 break;
00229 case Navigator::RIGHT:
00230 right(-nav->getMotionFactor());
00231 break;
00232 case Navigator::FORWARDS:
00233 forward(-nav->getMotionFactor());
00234 break;
00235 case Navigator::BACKWARDS:
00236 forward( nav->getMotionFactor());
00237 break;
00238 default:
00239 FNOTICE(("FlyEngine: keyPress, unknown key\n"));
00240 break;
00241 }
00242 }
00243
00244 void FlyEngine::moveTo(Int16 x,Int16 y,Navigator* nav)
00245 {
00246 Real32 fromX,fromY, toX,toY;
00247
00248 nav->calcFromTo(x,y, fromX,fromY, toX,toY);
00249
00250 Real32 distanceX = -(fromX-toX);
00251 Real32 distanceY = (fromY-toY);
00252 rotate(distanceX, distanceY);
00253
00254 switch (_currentState)
00255 {
00256 case Navigator::TRANSLATING_ZPLUS:
00257 forward(-nav->getMotionFactor());
00258 break;
00259 case Navigator::TRANSLATING_ZMINUS:
00260 forward(nav->getMotionFactor());
00261 break;
00262 case Navigator::ROTATING:
00263 break;
00264 default:
00265
00266 break;
00267 }
00268 }
00269
00270 void FlyEngine::idle(Int16 buttons, Int16 x,Int16 y,Navigator* nav)
00271 {
00272 }
00273
00274
00275
00279 void FlyEngine::rotate(Real32 deltaX, Real32 deltaY)
00280 {
00281
00282 Matrix final,temp;
00283 Quaternion q;
00284
00285 q.setValueAsAxisRad(_vUp,-deltaX);
00286 q.getValue(temp);
00287
00288 final.setIdentity();
00289 final.setTranslate(_rFrom);
00290 final.mult(temp);
00291
00292 temp.setIdentity();
00293 temp.setTranslate(-_rFrom[0],-_rFrom[1],-_rFrom[2]);
00294
00295 final.mult(temp );
00296 final.mult(_rAt, _rAt);
00297
00298
00299
00300 Vec3f lv = _rAt-_rFrom;
00301 lv.normalize();
00302
00303 Vec3f sv = lv;
00304 sv.crossThis(_vUp);
00305 sv.normalize();
00306 q.setValueAsAxisRad(sv,-deltaY);
00307 q.getValue(temp);
00308
00309 final.setIdentity();
00310 final.setTranslate(_rFrom);
00311 final.mult(temp);
00312
00313 temp.setIdentity();
00314 temp.setTranslate(-_rFrom[0],-_rFrom[1],-_rFrom[2]);
00315
00316 final.mult(temp);
00317 final.mult(_rAt, _rAt);
00318 }
00319
00322 Real32 FlyEngine::forward(Real32 step)
00323 {
00324 Vec3f lv;
00325 lv = _rFrom-_rAt;
00326 lv.normalize();
00327 lv *= (step);
00328 Matrix transl;
00329 transl.setIdentity();
00330 transl.setTranslate(lv);
00331 transl.mult(_rAt, _rAt );
00332 transl.mult(_rFrom, _rFrom);
00333 return 0.0;
00334 }
00335
00338 Real32 FlyEngine::right(Real32 step)
00339 {
00340 Vec3f sv;
00341 sv = _rFrom-_rAt;
00342 sv.crossThis(_vUp);
00343 sv.normalize();
00344 sv *= (step);
00345 Matrix transl;
00346 transl.setIdentity();
00347 transl.setTranslate(sv);
00348 transl.mult(_rAt, _rAt );
00349 transl.mult(_rFrom, _rFrom);
00350 return 0.0;
00351 }
00352
00353
00354
00355 FlyEngine::FlyEngine(void) : Inherited()
00356 {
00357 _rFrom .setValues(0,0,0);
00358 _rAt .setValues(0,0,1);
00359 _vUp .setValues(0,1,0);
00360 _tMatrix.setIdentity();
00361 }
00362
00363
00364
00365 FlyEngine::~FlyEngine()
00366 {
00367 }
