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Hi, my name is Sasha. I'm in GAM670
== Force Feedback == Add this to '''WindowSettings.h''':<big> #define IDC_NOFF //number</big> Add this in typedef enum Integer in '''Configuration.h''':<big> GF_CT_RMBL</big> In '''iInput.h''':<br />add line 1 in the iJoystick class<br />In '''Input.h''':<br />add line 2 in the Joystick class<br />add line 3 in the Joystick class<br /><big> 1. public: virtual void updateForce(float, double, int) = 0; 2. int feedBackOFF; LPDIRECTINPUTEFFECT centre; LPDIRECTINPUTEFFECT ffEffects; 3. public: void updateForce(float factor, double time, int direction); </big> In '''Input.cpp''', add the following to the Joystick constructor<big> ffEffects = NULL; centre = NULL; feedBackOFF = 0;</big> add this in Joystick::interrogate function:<big> DIDEVCAPS didcaps; didcaps.dwSize = sizeof didcaps; if(SUCCEEDED(didInter->GetCapabilities(&didcaps)) && (didcaps.dwFlags && DIDC_FOREFEEDBACK){ EnableWindow(GetDlgItem((HWND)hwnd, IDC_NOFF), TRUE); } else{ EnableWindow(GetDlgItem((HWND)hwnd, IDC_NOFF), FALSE); }</big> add this in Joystick::setup function:<big> feedBackOFF = !!(flags & 8);</big> change the SetCooperativeLevel in setup to check for device exclusivity<big> else if (FAILED(joystick->SetCooperativeLevel((HWND)hwnd, (feedBackOFF ? DISCL_NONEXCLUSIVE : DISCL_EXCLUSIVE) | DISCL_FOREGROUND)))</big> add this line after (!zAxisOn)<big> if(feedBackOFF) centre = NULL;</big> add these in the restore function:<big> else{ if(ffEffects){ ffEffects->Download(); } if(centre){ centre->Download(); centre->Start(1,0); }</big> add this function in:<big> void Joystick::updateForce(float factor, double time, int direction){ if(joystick) { if (feedBackOFF == 0) { if(context->get(GF_CT_RMBL) == 1) { if(ffEffects){ ffEffects->Download(); } DIEFFECT dif; DWORD axes[2] = {DIJOFS_X, DIJOFS_Y}; LONG dir[2] = {1, 0}; ZeroMemory(&dif, sizeof dif); // set the size of the struct dif.dwSize = sizeof dif; // set axes and directions dif.rgdwAxes = axes; dif.rglDirection = dir; DIPERIODIC dip; DIENVELOPE die; // if both x & y have FF, make shake come at 45 degree angle // otherwise just shake the x axis. // if (axisIsActive[0] && axisIsActive[Category:about1]) { dif.dwFlags = DIEFF_POLAR | DIEFF_OBJECTOFFSETS; dif.cAxes = 2; dir[0] = direction * DI_DEGREES; } else { // assume only x axis has FF dif.dwFlags = DIEFF_CARTESIAN | DIEFF_OBJECTOFFSETS; dif.cAxes = 1; } dif.dwGain = DI_FFNOMINALMAX; dif.dwDuration = time * DI_SECONDS / 2; // Timing in seconds of the force feedback, time is passed in here; dif.dwSamplePeriod = direction; dif.dwTriggerButton = DIEB_NOTRIGGER; dif.dwTriggerRepeatInterval = 0; dif.lpEnvelope = ¨ dif.cbTypeSpecificParams = sizeof dip; dif.lpvTypeSpecificParams = &dip; dif.dwStartDelay = 3 * DI_SECONDS; // 3 secs dip.dwMagnitude = 3 * DI_FFNOMINALMAX / 10; dip.lOffset = 0; dip.dwPhase = 0; dip.dwPeriod = DI_SECONDS / 10; // 1/10th second die.dwSize = sizeof die; die.dwAttackLevel = factor; die.dwAttackTime = factor * DI_SECONDS / 2; die.dwFadeLevel = factor; die.dwFadeTime = DI_SECONDS / 2; HRESULT hr = joystick->CreateEffect(GUID_Square, &dif, &ffEffects, NULL); // create a ramp force DIRAMPFORCE dirf; // if both x & y have FF, use the direction to change the angle of the shake // otherwise just shake the x axis. // if (axisIsActive[0] && axisIsActive[1]) { dif.dwFlags = DIEFF_POLAR | DIEFF_OBJECTOFFSETS; dif.cAxes = 2; dir[0]= direction * DI_DEGREES; } else { // assume only x axis has FF dif.dwFlags = DIEFF_CARTESIAN | DIEFF_OBJECTOFFSETS; dif.cAxes = 1; } dif.dwGain = DI_FFNOMINALMAX; dif.dwDuration = time * DI_SECONDS / 2; // Timing in seconds for the force feedback, time is passed in here; dif.dwSamplePeriod = direction; dif.dwTriggerButton = DIEB_NOTRIGGER; dif.dwTriggerRepeatInterval = 0; dif.lpEnvelope = ¨ dif.cbTypeSpecificParams = sizeof dirf; dif.lpvTypeSpecificParams = &dirf; dif.dwStartDelay = 0.01 * DI_SECONDS; dirf.lStart = DI_FFNOMINALMAX / 2; dirf.lEnd = - DI_FFNOMINALMAX / 2; die.dwSize = sizeof die; die.dwAttackLevel = DI_FFNOMINALMAX / 50; die.dwAttackTime = time * DI_SECONDS / 2; die.dwFadeLevel = DI_FFNOMINALMAX / 10; die.dwFadeTime = time * DI_SECONDS / 2; if (SUCCEEDED(joystick->CreateEffect(GUID_RampForce, &dif, &ffEffects, NULL))){ ffEffects->Download();// download to driver ffEffects->Start(INFINITE,0); // infinite so it can be played as many times } } else if(context->get(GF_CT_RMBL) == 0) { if(ffEffects){ DWORD DIGFFS_STOPPED1 = 2; if(!joystick->GetForceFeedbackState(&DIGFFS_STOPPED1)) ffEffects->Stop(); } } } } }</big> Add this to release:<big> if(centre){ centre->Release(); centre = NULL; } if(ffEffects){ ffEffects->Release(); ffEffects = NULL; }</big> In '''UserDialog.cpp''':In the saveUserChoices function, add another bool called ff:<big> bool y, z, '''ff''', none;</big> Add this line after the y and z are retrieved<big> ff = SendDlgItemMessage(hwnd, IDC_NOFF, BM_GETCHECK, 0, 0) != BST_CHECKED;</big> Add this in the else statement after y = z = false;<big> ff = true;</big> Change the flags being set after:<big> flags = ((y ? 1 : 0) << 2) | ((z ? 1 : 0) << 1) '''| ((ff ? 0 : 1) << 3)''' | (none ? 1 : 0);</big> in '''iDesign.h''', add these to the iDesign class:<big> virtual bool sendForce(bool) = 0; virtual void setForceTime(double) = 0; virtual double getForceTime() = 0; virtual void setForceDir(int) = 0; virtual int getForceDir() = 0; virtual void setForceFactor(float) = 0; virtual float getForceFactor() = 0;</big> in '''Design.h''', add these to the Design class:<big> private: float fFactor; double fTime; int fDirection; public: bool sendForce(bool); void setForceTime(double); double getForceTime(); void setForceDir(int); int getForceDir(); void setForceFactor(float); float getForceFactor();</big> In '''Design.cpp''' constructor, add these default values:<big> fTime = 0.1; fFactor = 1.0f; fDirection = 45;</big> You can then use these in Design::update function<big> setForceTime(double); setForceDir(int); setForceFactor(float); sendForce(bool); context->set(GF_CT_RMBL, int(0 or 1));</big> Add these functions in '''Design.cpp'''<big> bool Design::sendForce(bool force) { return force; }
void Design::setForceTime(double time) { fTime =time; } double Design::getForceTime() { if(fTime != Force Feedback =0.0) return fTime; } void Design::setForceDir(int fctr) { fDirection =fctr; } int Design::getForceDir() { return fDirection; }
void Design::setForceFactor(float)
{
fFactor = 1.0f;
}
float Design::getForceFactor()
{
return fFactor;
}
</big>
