Exemplo n.º 1
0
        } // End evaluateActionUtility

        /// <summary>
        /// Gets the appraisal score.
        /// </summary>
        /// <returns>The appraisal score.</returns>
        /// <param name="factorPlant">Factor plant.</param>
        private static float getAppraisalScore(FactorPlant factorPlant)
        {
            IFactor   factor    = new FactorAssembler().AssembleFactor(factorPlant);
            Appraisal appraisal = factor.Evaluate(null);

            return(appraisal.BasicScore);
        }
Exemplo n.º 2
0
        /// <summary>
        /// Evaluates the utility measures of the given actions by adding up the basic scores
        /// calculated by all factors (per action). It then picks the action with the highest
        /// score.
        /// </summary>
        /// <param name="actions">Actions.</param>
        ///
        /// TODO: the blocks of code for initializing factors and getting the
        /// appraisals of actions could probably be abstracted into a separate
        /// method.
        ///
        /// TODO: this could be done similarly to the Open Closed Principle
        /// example in the PluralSight course aboud the SOLID principles of
        /// Object Oriented Software Design by Steve Smith.
        private static AIAction evaluateActionUtility(List <AIAction> actions)
        {
            float    previousScore   = 0.0f;
            AIAction bestScoreAction = null;

            foreach (AIAction action in actions)
            {
                float       totalScore  = 0.0f;
                FactorPlant factorPlant = null;

                factorPlant = new FightingStyleRankFactorPlant("Factor Plant");
                IFactor fightingStyleRankFactor = new FactorAssembler().AssembleFactor(factorPlant);
                // TODO: this assumes that the fighting style rank needed here
                // is always the first one. In the event the character is proficient
                // in more than one styles this could prove problematic.
                // This is also a problem because it creates a dependency of this
                // class on FightingStyleRankFactor.
                ((FightingStyleRankFactor)fightingStyleRankFactor).Rank = _input.OpponentRanks[0];
                Appraisal appraisal = fightingStyleRankFactor.Evaluate(action);

                //DebugConsole.Log ("Score for Fighting Style Rank is: " + appraisal.BasicScore);

                totalScore += appraisal.BasicScore;

                factorPlant = null;

                factorPlant = new TechniqueProficiencyFactorPlant("Factor Plant");
                IFactor techniqueProficiencyFactor = new FactorAssembler().AssembleFactor(factorPlant);
                appraisal = techniqueProficiencyFactor.Evaluate(action);

                //DebugConsole.Log ("Score for Technique Proficiency is: " + appraisal.BasicScore);

                totalScore += appraisal.BasicScore;

                factorPlant = null;

                // Get the action's measure of utility in terms of the character's
                // physical condition.
                factorPlant = new PhysicalConditionFactorPlant("Factor Plant");
                IFactor physicalConditionFactor = new FactorAssembler().AssembleFactor(factorPlant);
                appraisal = physicalConditionFactor.Evaluate(action);

                //DebugConsole.Log ("Score for Physical Condition is: " + appraisal.BasicScore);

                totalScore += appraisal.BasicScore;

                factorPlant = null;

                // Get the action's measure of utility in terms of the character's
                // attacker body part status.
                factorPlant = new AttackerBodyPartFactorPlant("Factor Plant");
                IFactor attackerBodyPartFactor = new FactorAssembler().AssembleFactor(factorPlant);
                appraisal = attackerBodyPartFactor.Evaluate(action);

                //DebugConsole.Log ("Score for Attacker Body Part is: " + appraisal.BasicScore);

                totalScore += appraisal.BasicScore;

                // Get the action's measure of utility in terms of the preceding
                // actions performed by the AI Character.
                factorPlant = new ActionHistoryFactorPlant("Factor Plant");
                IFactor actionHistoryFactor = new FactorAssembler().AssembleFactor(factorPlant);
                // TODO: this is a problem because it creates a dependency of
                // this class on ActionHistoryFactor.
                ((ActionHistoryFactor)actionHistoryFactor).Strategy = _input.Strategy;
                appraisal = actionHistoryFactor.Evaluate(action);

                //DebugConsole.Log ("Score for Action History is: " + appraisal.BasicScore);

                totalScore += appraisal.BasicScore;

                float randomElement = Random.Range(0.0f, 1.0f);

                //DebugConsole.Log ("Random element is: " + randomElement);

                totalScore += randomElement;

                //DebugConsole.Log ("Total score for action " + ((FightingTechniqueAction)action).Proficiency.name + " is: " + totalScore);

                if (totalScore > previousScore)
                {
                    previousScore   = totalScore;
                    bestScoreAction = action;
                }
            } // End foreach

            return(bestScoreAction);
        } // End evaluateActionUtility