// TODO: REFACTOR Split this up into multiple methods
// and call it only when neccesarry; this is too heavy now
// Do not have time to split it up
bool ThinkIfShouldEat()
{
FuzzyModule fuzzyModule = new FuzzyModule();
/// define FLVs and underlying sets
FuzzyLinguisticVariable distToFood = fuzzyModule.CreateFLV("DistToFood");
// distance numbers are measured in pixels. For a visualisation of this FLV,
// see the "DistanceFromFood" antecedent FLV graph in the documentation.
FuzzySet food_ShortDistance = distToFood.AddLeftShoulderSet("ShortDistance", 0, 1, 200);
FuzzySet food_MediumDistance = distToFood.AddTriangularSet("MediumDistance", 100, 200, 300);
FuzzySet food_LongDistance = distToFood.AddRightShoulderSet("LongDistance", 200, 200, 400);
FuzzyLinguisticVariable hunger = fuzzyModule.CreateFLV("Hunger");
FuzzySet hunger_full = distToFood.AddLeftShoulderSet("Full", 0, 1, 50);
FuzzySet hunger_hungry = distToFood.AddTriangularSet("Hungry", 30, 50, 70);
FuzzySet hunger_starving = distToFood.AddRightShoulderSet("Starving", 50, 100, 100);
FuzzyLinguisticVariable foodDesirability = fuzzyModule.CreateFLV("DesirabilityToEatFood");
FuzzySet desirability_Undesirable = distToFood.AddLeftShoulderSet("Undesirable", 0, 1, 50);
FuzzySet desirability_Desirable = distToFood.AddTriangularSet("Desirable", 25, 50, 75);
FuzzySet desirability_VeryDesirable = distToFood.AddRightShoulderSet("VeryDesirable", 50, 100, 100);
// implement rules
List <FuzzySet> rule1Antecedent = new List <FuzzySet>()
{
food_ShortDistance, hunger_full
};
fuzzyModule.FuzzyRules.Add(new FuzzyRule(rule1Antecedent, desirability_Undesirable));
List <FuzzySet> rule2Antecedent = new List <FuzzySet>()
{
food_ShortDistance, hunger_hungry
};
fuzzyModule.FuzzyRules.Add(new FuzzyRule(rule2Antecedent, desirability_VeryDesirable));
List <FuzzySet> rule3Antecedent = new List <FuzzySet>()
{
food_ShortDistance, hunger_starving
};
fuzzyModule.FuzzyRules.Add(new FuzzyRule(rule3Antecedent, desirability_VeryDesirable));
List <FuzzySet> rule4Antecedent = new List <FuzzySet>()
{
food_MediumDistance, hunger_full
};
fuzzyModule.FuzzyRules.Add(new FuzzyRule(rule4Antecedent, desirability_Undesirable));
List <FuzzySet> rule5Antecedent = new List <FuzzySet>()
{
food_MediumDistance, hunger_hungry
};
fuzzyModule.FuzzyRules.Add(new FuzzyRule(rule5Antecedent, desirability_Desirable));
List <FuzzySet> rule6Antecedent = new List <FuzzySet>()
{
food_MediumDistance, hunger_starving
};
fuzzyModule.FuzzyRules.Add(new FuzzyRule(rule6Antecedent, desirability_VeryDesirable));
List <FuzzySet> rule7Antecedent = new List <FuzzySet>()
{
food_LongDistance, hunger_full
};
fuzzyModule.FuzzyRules.Add(new FuzzyRule(rule7Antecedent, desirability_Undesirable));
List <FuzzySet> rule8Antecedent = new List <FuzzySet>()
{
food_LongDistance, hunger_hungry
};
fuzzyModule.FuzzyRules.Add(new FuzzyRule(rule8Antecedent, desirability_Undesirable));
List <FuzzySet> rule9Antecedent = new List <FuzzySet>()
{
food_LongDistance, hunger_starving
};
fuzzyModule.FuzzyRules.Add(new FuzzyRule(rule9Antecedent, desirability_VeryDesirable));
/// pass variables
//TODO: Actually get distance to food in-game
// Not implemented (its used for debugging) because it
// seemingly doesn't accuratly produce wanted results
// To implement, get the nearest food source from an entity
// and get the distance squared towards target
double pixelsFromFood = 300;
distToFood.Fuzzify(pixelsFromFood);
//TODO actually implement hunger
// Does not change the defuzzified value for some reason.
// I don't know how and I do not have the time to fix it.
// First step would be to check if it changes the consequent value, etc.
double hungerAmount = -1 * OwnerEntity.FoodEaten;
hunger.Fuzzify(hungerAmount);
fuzzyModule.RunRules();
double defuzzifiedValue = fuzzyModule.DeFuzzify("DesirabilityToEatFood");
// I don't know what I did wrong here. I don't have time to fix it.
// Value does not correspond to the value in the docs.
// Unpredictable results.
return(defuzzifiedValue < 109);
}