Force Feedback:

* return zero force for autocenterEffect if speed is really low to prevent wheel going crazy while standing still due big forces returned by the physic engine
* implement basic engineRevvingEffect
* implement basic lowSpeedCostantForceEffect
* update config menu

git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@6452 30fe4595-0a0c-4342-8851-515496e4dcbd

Former-commit-id: 2ae4a743476b3dfaceb342aad8c2332d016e62fb
Former-commit-id: 4df3cbd7a9c118fab9367bbb2cc8c65bea7a1d7e

src/libs/tgfclient/forcefeedback.cpp

@@ -31,6 +31,9 @@ bool timeLogged = false;
 clock_t effectStart = std::clock();
 clock_t effectCurTime = std::clock();
 
+float prevSteerCmd;
+float prevSteerCmdDiff;
+int prevDirection = 1;
 
 int filterPositiveNumbers (int number){
 	if (number > 0){
@@ -185,6 +188,8 @@ void ForceFeedbackManager::saveConfiguration(){
 }
 int ForceFeedbackManager::updateForce(tCarElt* car, tSituation *s){
 
+	this->force = 0;
+
 	//calculate autocenter if enabled
 	if (this->effectsConfig["autocenterEffect"]["enabled"]){
 		this->force = this->autocenterEffect(car, s);
@@ -196,6 +201,12 @@ int ForceFeedbackManager::updateForce(tCarElt* car, tSituation *s){
 		this->force += this->engineRevvingEffect(car, s);
 		GfLogInfo("After engineRevving: (%i)\n", this->force);
 	}
+
+	//calculate engine revving if enabled
+	//if (this->effectsConfig["engineRevvingEffect"]["enabled"]){
+		this->force += this->lowSpeedCostantForceEffect(car, s);
+	//	GfLogInfo("After engineRevving: (%i)\n", this->force);
+	//}
 	
 	//calculate bump
 	//this->force += this->bumpsEffect(car, s);
@@ -209,6 +220,8 @@ int ForceFeedbackManager::updateForce(tCarElt* car, tSituation *s){
 	if(this->effectsConfig["globalEffect"]["reverse"] == 1){
 		this->force = -1 * this->force;
 	}
+	
+	GfLogInfo("Final force: (%i)\n", this->force);
 
 	return this->force;
 
@@ -216,6 +229,10 @@ int ForceFeedbackManager::updateForce(tCarElt* car, tSituation *s){
 
 int ForceFeedbackManager::autocenterEffect(tCarElt* car, tSituation *s){
 	
+	
+	if(car->_speed_xy < 4){
+		return 0;
+	}
 	/*
 	 * car->steerLock
 	 * */
@@ -385,6 +402,73 @@ int ForceFeedbackManager::engineRevvingEffect(tCarElt* car, tSituation *s){
 	
 	return effectForce;
 
+}
+
+int ForceFeedbackManager::lowSpeedCostantForceEffect(tCarElt* car, tSituation *s){
+
+	int effectForce;
+	int sign;
+
+	//we need to store the sign of the force
+	sign = ((car->_steerTqCenter - prevSteerCmd) > 0) - ((car->_steerTqCenter - prevSteerCmd) < 0);
+
+	GfLogInfo("test: (%f)\n", car->_steerTqCenter);
+	GfLogInfo("test: (%f)\n", prevSteerCmd );
+
+	int prevDirectionSign = (prevDirection > 0) - (prevDirection < 0);
+
+	GfLogInfo("Sign: (%d)\n", sign);
+	GfLogInfo("Direction sign: (%d)\n", prevDirectionSign);	
+
+
+/*	
+	if(prevDirectionSign == sign || sign == 0){
+		
+		prevDirection = prevDirection + sign;
+
+	}else{
+
+		prevDirection = sign;
+
+	}
+*/
+
+	prevDirection = prevDirection + sign;
+	if (prevDirection > 7) prevDirection =7;
+	if (prevDirection < -7) prevDirection =-7;
+	
+
+
+
+	GfLogInfo("Direction score: (%d)\n", prevDirection);
+
+
+	//force calculation
+	if (car->_speed_xy < this->effectsConfig["lowSpeedCostantForceEffect"]["maxSpeedAtWithcForceIsApplied"]
+//		&& abs(prevDirection) > 8
+	){
+
+		effectForce =
+				this->effectsConfig["lowSpeedCostantForceEffect"]["maxForce"] / 8 * abs(prevDirection) /
+				//(car->_speed_xy  + 1) * 
+				(pow(car->_speed_xy, (float) 1/2) + 1) *
+				//sign;
+				prevDirectionSign;
+		
+	}else{
+
+		effectForce = 1;
+
+	}
+
+	prevSteerCmdDiff = car->_steerTqCenter - prevSteerCmd;
+	prevSteerCmd = car->_steerTqCenter;
+
+	GfLogInfo("SPEED: (%i)\n", (int)car->_speed_xy);
+	GfLogInfo("Efect: (%i)\n", effectForce);
+
+	return effectForce;
+
 }
 //initialize the force feedback
 TGFCLIENT_API ForceFeedbackManager forceFeedback;

src/libs/tgfclient/forcefeedback.h

@@ -85,6 +85,7 @@ class TGFCLIENT_API ForceFeedbackManager {
 		int autocenterEffect(tCarElt* car, tSituation *s);
 		int engineRevvingEffect(tCarElt* car, tSituation *s);
 		int bumpsEffect(tCarElt* car, tSituation *s);
+		int lowSpeedCostantForceEffect(tCarElt* car, tSituation *s);
 		int globalMultiplier;
 
 };

src/modules/userinterface/legacymenu/confscreens/forcefeedbackconfig.cpp

@@ -93,7 +93,10 @@ onSaveForceFeedbackConfig(void * /* dummy */)
 
 		GfLogInfo("%s%s.\n", editbox->effectTypeName.c_str(), editbox->effectParameterName.c_str());
 
-		if (editbox->effectParameterName.compare("enabled") == 0){
+		if (
+			editbox->effectParameterName.compare("enabled") == 0
+			|| editbox->effectParameterName.compare("reverse") == 0
+		){
 			
 			forceFeedback.effectsConfig[editbox->effectTypeName.c_str()][editbox->effectParameterName.c_str()] = 
 				(int)GfuiCheckboxIsChecked(ScrHandle, (int)editbox->id);
@@ -186,7 +189,10 @@ ForceFeedbackMenuInit(void *prevMenu, void *nextMenu, int curPlayerIdx, std::str
 				GfLogInfo("Exist: %s\n", editBoxName.c_str());
 		
 				//if (iterator2->first.c_str() == "enabled"){
-				if (iterator2->first.compare("enabled") == 0){
+				if (
+					iterator2->first.compare("enabled") == 0
+					|| iterator2->first.compare("reverse") == 0
+				){
 					
 					int checkboxId =
 						GfuiMenuCreateCheckboxControl(ScrHandle, menuXMLDescHdle, editBoxName.c_str(),