I hope that's final shape of universal Expert System, now it's time to add some functionality.

AI/GeniusAI/ExpertSystem.cpp

@@ -12,15 +12,113 @@
  *
  */
 
-template <typename ruleType, typename facts> void ExpertSystemShell<ruleType, facts>::DataDrivenReasoning(runType type)
+template <typename ruleType, typename facts> template <typename cond> void ExpertSystemShell<ruleType, facts>::DataDrivenReasoning(runType type)
 {
+	std::set<ruleType>::iterator ir;
+	std::list<fact>::iterator iF;
+	std::set<std::pair<cond, input*>>::iterator ic;
+	bool factWasAdded = false; //carry it over inner loop
 	switch (type)
 	{
 		case ANY_GOAL: //first produced decision ends reasoning
 		{
-			for (std::list<typename facts>::iterator it = factList.begin(); it != factList.end(); it++)
-			{};
+			int goalCounter = 0;
+			while(!goalCounter) //we reach goal or can't modify knowledge anymore
+			{
+				for (ir = knowledge.begin(); ir != knowledge.end(); ir++)
+				{
+					for (iF = factList.begin(); iF != factList.end(); iF++)
+					{
+						for (ic = ir->conditions.begin(); ic != ir->conditions.end(), ic++)
+						{
+							if (ic->first.object.matchesFact(iF->object)) //condition matches held object
+							{
+								(ic->second = *iF);
+								++(ir->conditionCounter);
+							}
+						}
+						if (ir->conditions.size() >= ir->conditionCounter());
+						{
+							ir->fireRule(); //all conditions matched
+							ir->conditionCounter = 0; //do it here or in rule itself?
+							if (dynamic_cast<&Goal>(*ir))
+								++goalCounter;
+						}
+					}
+					matchedConditions = 0;
+					//modify set until something happens (hopefully!)
+					for (iF = factsToErase.begin(); iF != factsToErase.end(); iF++)
+						factList.erase(knowledge.find(*iF));
+					factsToErase.clear(); //TODO: what if fact is remembered by rule, yet already erased?
+					for (iF = factsToAdd.begin(); iF != factsToAdd.end(); iF++)
+						factList.insert(*iF);
+					if (factsToAdd.size())
+					{
+						factsToAdd.clear();
+						factWasAdded = true;
+					}
+				}
+				for (ir = rulesToErase.begin(); ir != rulesToErase.end(); ir++)
+					knowledge.erase(knowledge.find(*ir));
+				rulesToErase.clear();
+				for (ir = rulesToAdd.begin(); ir != rulesToAdd.end(); ir++)
+					knowledge.insert(*ir);
+				if (!(factWasAdded || rulesToAdd.size())) //we can't do anything more
+					break;
+				rulesToAdd.clear();	
+			};
 		}
 		break;
 	}
 }
+void BonusRule::fireRule()
+{
+	for (std::set<std::pair<BonusCondition, BonusHolder*>>::iterator it = cons.begin(); it != cons.end(); it++)
+	{
+		switch (it->first.parameter)
+		{ //compare fact with condition
+			case BonusCondition::type:
+				if (!it->first.functor(it->second->object->type, it->first.value)) return;
+			break;
+			case BonusCondition::subtype: //probably suprfluous, Selector already handles that
+				if (!it->first.functor(it->second->object->subtype, it->first.value)) return;
+			break;
+			case BonusCondition::val:
+				if (!it->first.functor(it->second->object->val, it->first.value)) return;
+			break;
+			case BonusCondition::duration:
+				if (!it->first.functor(it->second->object->duration, it->first.value)) return;
+			break;
+			case BonusCondition::source:
+				if (!it->first.functor(it->second->object->source, it->first.value)) return;
+			break;
+			case BonusCondition::id:
+				if (!it->first.functor(it->second->object->id, it->first.value)) return;
+			break;
+			case BonusCondition::valType:
+				if (!it->first.functor(it->second->object->valType, it->first.value)) return;
+			break;
+			case BonusCondition::additionalInfo:
+				if (!it->first.functor(it->second->object->additionalInfo, it->first.value)) return;
+			break;
+			case BonusCondition::effectRange:
+				if (!it->first.functor(it->second->object->effectRange, it->first.value)) return;
+			break;
+			default: //ignore or accept?
+			break;
+		};
+	}
+	//TODO: add new fact or modify existing one
+}
+//template <typename input, typename conType> void Rule<input, conType>::refreshRule(std::set<conType> &conditionSet)
+//{
+//	cons.clear();
+//	for (std::set<conType>::iterator it = conditionSet.begin(); it != conditionSet.end(); it++)
+//		cons.insert(std::make_pair<conType,input*>(*it, NULL)); //pointer to condition and null fact
+//}
+bool BonusCondition::matchesFact(Bonus &fact)
+{
+	if (object(fact)) //Bonus(fact) matches local Selector(object)
+		return true;
+	return false;
+}

AI/GeniusAI/ExpertSystem.h

@@ -14,54 +14,72 @@
  *
  */
 struct Bonus;
+template <typename fact> class AIholder;
 template <typename input, typename output> class Rule;
 typedef Rule<Bonus, Bonus> BRule;
+bool greaterThan (int prop, si32 val);
 
-template <typename ruleType, typename facts> class ExpertSystemShell
+enum conditionType {LESS_THAN, EQUAL, GREATER_THAN, UNEQUAL, PRESENT};
+
+template <typename ruleType, typename fact> class ExpertSystemShell
 {
 	enum runType {ANY_GOAL, TRESHOLD, FULL};
 private:
 	ICallback* m_cb;
 protected:
 	std::set<ruleType> knowledge;
+	std::set<ruleType*> rulesToErase;
+	std::set<ruleType*> rulesToAdd;
+	std::set<fact*> factsToErase;
+	std::set<fact*> factsToAdd;
 	ui16 goalCounter; //count / evaluate achieved goals for runType
 public:
 	ExpertSystemShell(){goalCounter = 0;};
-	std::list<facts> factList;
+	std::list<fact> facts; //facts are AIholders with actual game objects, for eg. "my bonus is worthless"
 
 	template <typename t1> void getKnowledge(const t1 &a1){};
-	template <typename ruleType> void getNextRule(){};
+	void getNextRule(){};
+	void addRule(ruleType &rule){rulesToAdd.insert(rule);};
+	void removeRule(ruleType &rule){rulesToErase.insert(rule);};
 	template <typename t2> void returnGoals(const t2 &a2){};
-	virtual void DataDrivenReasoning(runType type);
+	template <typename cond> void DataDrivenReasoning(runType type);
 };
-template <typename ruleType, typename facts> class Blackboard : public ExpertSystemShell <ruleType, facts>
+template <typename ruleType, typename fact> class Blackboard : public ExpertSystemShell <ruleType, fact>
 //handle Bonus info coming from different sections of the game
 {
 public:
-	Blackboard(){this->goalCounter = 0;};
+	Blackboard(){this->goalCounter = 0;}; //template magic, do not touch!
 	std::vector<ExpertSystemShell*> experts; //modules responsible for different tasks
 };
 
 template <typename input> class condition
-{
-	enum conditionType {LESS_THAN, EQUAL, GREATER_THAN, UNEQUAL, PRESENT};
+{//determines selected object parameter with value using functor
 public:
-	input object;
-	ui16 value;
-	conditionType conType;
+	input object; //what the fact is, or what it's like (CSelector)
+	si32 value;
+	ui8 parameter;
+	boost::function<bool(int,si32)> functor; //value of selected parameter, condition value
+
+	condition(){object = NULL; value = 0; parameter = 0; functor = greaterThan;};
+
+	bool matchesFact(input &fact){return false;};
 };
 
-template <typename input, typename output> class Rule
+template <typename input, typename conType> class Rule
 {
-friend class ExpertSystemShell <input, output>;
+friend class ExpertSystemShell <input, conType>;
 public:
 	bool fired; //if conditions of rule were met and it produces some output
+	ui8 conditionCounter;
 protected:
-	std::set<input*> conditions;
-	output decision;
+	std::set<std::pair<conType, input*>> cons; //conditions and matching facts
+	input decision;
 	virtual void canBeFired(); //if this data makes any sense for rule
-	virtual void fireRule();
+	virtual void fireRule(std::set<input*> &feed);
+	virtual void fireRule(); //use paired conditions and facts by default
+	virtual void refreshRule(std::set<conType> &conditionSet); //in case conditions were erased
 public:
+	Rule(){fired = false; conditionCounter = 0; decision = NULL;};
 	template <typename givenInput> bool matchesInput() //if condition and data match type
 		{return dynamic_cast<input*>(&givenInput);};
 };
@@ -77,11 +95,50 @@ public:
 template <typename input, typename output> class Weight : public Rule <input, output>
 {
 public:
-	float value; //multiply input by value and return to output
+	float multiplier; //multiply input by value and return to output
 	void fireTule(){};
 };
 
+template <typename input> class AIholder
+{ //stores certain condition and its temporal value
+public:
+	si32 aiValue;
+	input *object;
+
+	AIholder(){object = NULL; aiValue = 0;}
+	AIholder(input &o){object = o; aiValue = 0;}
+	AIholder(input &o, si32 val){object = 0; aiValue = val;}
+};
+
 class BonusSystemExpert : public ExpertSystemShell <BRule, Bonus>
 { //TODO: less templates?
-	enum effectType {POSITIVE=1, NEGATIVE=2, EXCLUDING=4, ENEMY=8, ALLY=16}; //what is the influencce of bonus and for who
+	enum effectType {POSITIVE=1, NEGATIVE=2, EXCLUDING=4, ENEMY=8, ALLY=16}; //what is the influence of bonus and for who
 };
+
+class BonusCondition : public condition<CSelector> //used to test rule
+{
+public:
+	enum Parameter
+	{
+		type, subtype, val, duration, source, id, valType, additionalInfo, effectRange, limiter //?
+	};
+	bool matchesFact(Bonus &fact);
+};
+class BonusHolder : public AIholder<Bonus>
+{
+public:
+	BonusHolder(Bonus &bonus){object = &bonus; aiValue = bonus.val;}
+	BonusHolder(Bonus &bonus, si32 val){object = &bonus; aiValue = val;}
+};
+class BonusRule : public Rule <BonusHolder, BonusCondition>
+{
+protected:
+	void fireRule();
+};
+
+bool greaterThan (int prop, si32 val)
+{
+	if ((si32)prop > val)
+		return true;
+	return false;
+}