public override float score()
{
// determine how fightable nearby threats are
var threat = NearbyThreat.greatestThreat(context);
if (threat == null)
{
return(0); // no threat means don't score
}
// TODO: use better functions to map ratios to score
// 1. compare core sizes (ratio) -> transform [-40, 40]
var coreSizeRatio = betterRatio(threat.mind.state.me.core.designMax, context.state.me.core.designMax);
var coreSizeScore = scoreRatio(coreSizeRatio, 20);
// 2. compare maneuverability (ratio) -> transform [-20, 20]
// if we're more maneuverable, it might not be worth fighting
var maneuverabilityRatio = betterRatio(context.state.me.body.turnPower, threat.mind.state.me.body.turnPower);
var maneuScore = scoreRatio(maneuverabilityRatio, 20);
// 3. compare speed (ratio) -> transform [-40, 40]
// if we're faster, we want to fight less
var speedRatio = betterRatio(context.state.me.body.thrustPower, threat.mind.state.me.body.thrustPower);
var speedScore = scoreRatio(speedRatio, 30);
// 3. compare energy (ratio) -> transform [-40, 40]
// if we're faster, we want to fight less
var energyRatio = betterRatio(threat.mind.state.me.core.energy, context.state.me.core.energy);
var energyScore = scoreRatio(energyRatio, 30);
// 4. compare armed state
var threatWeaponMaxscore = 40;
var threatWeapon = threat.mind.entity.GetComponent <Shooter>();
var myWeapon = context.state.me.GetComponent <Shooter>();
// if they're armed, set negative score
var armoryScore = threatWeapon == null ? 0 : -threatWeaponMaxscore;
// TODO: compare weapons
if (myWeapon != null)
{
// if i'm armed too
// then negate the score penalty
armoryScore += threatWeaponMaxscore;
}
// clamp score to [-100, 100] -> transform [0, 1]
var score = coreSizeScore + maneuScore + speedScore + energyScore + armoryScore;
context.state.setBoard("judged threat",
new DuckMindState.BoardItem($"E:{energyScore}, C:{coreSizeScore}, M:{maneuScore}, S:{speedScore}",
"interaction",
Color.Orange, Time.TotalTime + 1f));
var clampedScore = GMathf.clamp(score, -100, 100); // clamp score
var fightable = GMathf.map01(clampedScore, -100, 100); // map to [-1,1]
return(fightable);
}
public override void run(params DuckMind[] participants)
{
var me = participants[0];
var them = participants[1];
// when a bird is nearby
// if opinion is negative, then there is cause for fear
// if opinion is positive, then i feel secure
// if my anxiety is high, i will react more strongly to both
// if you get WAY too close, you will be labeled a threat
var maxOpinionDelta = 4; // range [-4, 4]
var opinionDelta = 0;
var currentOpinion = me.state.getOpinion(them.state.me);
if (currentOpinion > Constants.DuckMind.OPINION_ALLY)
{
// we're friends, we should have a positive opinion
// this is based on both anxiety and sociability.
// TODO: positive opinion from being near friends
// this should fall off to a negligible account above a certain threshold
}
else
{
// TODO: take anxiety better into account
// calculate opinion-affecting factors
var maxWariness = 10f;
// [-4, 0]: long-distance wariness
var longDistanceWariness =
(int)TraitCalc.transform(-me.soul.traits.wary, -4, 2, -4, 0);
// [-4, -1]: close distance wariness
var closeWariness = 0;
if (dist < closeDistance)
{
// extreme caution
closeWariness =
(int)TraitCalc.transform(-me.soul.traits.wary, -4, 0, -4, -1);
}
me.state.setBoard("nearby fear",
new DuckMindState.BoardItem($"L: {longDistanceWariness}, C: {closeWariness}", "interaction",
Color.Orange, Time.TotalTime + 1f));
var warinessScore = longDistanceWariness + closeWariness;
opinionDelta += warinessScore;
// being in the presence of a threat is scary
me.soul.emotions.spikeFear(Math.Abs(warinessScore / maxWariness));
}
// clamp the opinion delta to the required range
opinionDelta = GMathf.clamp(opinionDelta, -maxOpinionDelta, maxOpinionDelta);
me.state.addOpinion(them.state.me, GMathf.roundToInt(opinionDelta));
}
public override float score()
{
// hunger score is based on the necessity of more energy.
// let E be energy percentage (energy / max energy), clamp01
// y = (1 - E)^2
var energyCore = context.entity.GetComponent <EnergyCore>();
var satiation = 2f; // 200% food
var ratioSatiation = energyCore.energy / (energyCore.designMax * satiation);
var invEnergyPerc = 1 - Mathf.Clamp01(ratioSatiation);
return(GMathf.pow(invEnergyPerc, 1.4f));
}
public override float score()
{
var thresh = opinionThreshold(context);
var candidate = bestCandidate(context, thresh);
if (candidate == null)
{
return(0);
}
// scale from 0-100
return(GMathf.map01clamp01(context.state.getOpinion(candidate.mind.state.me),
thresh, Constants.DuckMind.OPINION_ALLY));
}
public override void run(params DuckMind[] participants)
{
if (participants.Length != 2)
{
throw new ArgumentException("only two participants", nameof(participants));
}
var me = participants[0]; // this should be "me"
var myTraits = new Traits(me.soul);
var giver = participants[1]; // the one who gave me stuff
// food value [0, 40]
var maxFoodValue = 40;
var foodValue = (int)(sig.energy / 400f) * maxFoodValue;
// calculate opinion delta
var opinionDelta = 0;
var currentOpinion = me.state.getOpinion(giver.state.me);
// calculate receptiveness to food
// receptive (innate) [0, 1]
var innateFoodReceiptiveness = TraitCalc.transform(myTraits.receptiveness,
-0.4f, 1f, 0f, 1f);
// receptive (happy) [0, 0.5]
var happyFoodReceptiveness = TraitCalc.transform(me.soul.emotions.happy,
-1.5f, 1f, 0f, 0.5f);
// receptive [0, 2]
var foodReceptiveness = GMathf.clamp(
innateFoodReceiptiveness + happyFoodReceptiveness,
0f, 2f
);
// significantly diminishing rewards, effectively capping around ~300
var foodOpinionWeight = LCurves.diminishingReturns(currentOpinion / 10f, 1f, 0.1f);
opinionDelta += (int)(foodReceptiveness * foodValue * foodOpinionWeight);
// food makes me happy!
me.soul.emotions.spikeHappy(GMathf.clamp(foodReceptiveness, 0, 0.8f));
// add opinion to the one that fed me
me.state.addOpinion(giver.state.me, opinionDelta);
}