3d4095cffd
Not listing enemy "NearDead" and own relative atk power "Strong" here looked wrong, and might've resulted in no decision being made.
276 lines
11 KiB
C#
276 lines
11 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
|
|
* This file is part of OpenRA, which is free software. It is made
|
|
* available to you under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version. For more
|
|
* information, see COPYING.
|
|
*/
|
|
#endregion
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using AI.Fuzzy.Library;
|
|
using OpenRA.Mods.Common.Traits;
|
|
using OpenRA.Mods.Common.Warheads;
|
|
using OpenRA.Traits;
|
|
|
|
namespace OpenRA.Mods.Common.AI
|
|
{
|
|
sealed class AttackOrFleeFuzzy
|
|
{
|
|
static readonly string[] DefaultRulesNormalOwnHealth = new[]
|
|
{
|
|
"if ((OwnHealth is Normal) " +
|
|
"and ((EnemyHealth is NearDead) or (EnemyHealth is Injured) or (EnemyHealth is Normal)) " +
|
|
"and ((RelativeAttackPower is Weak) or (RelativeAttackPower is Equal) or (RelativeAttackPower is Strong)) " +
|
|
"and ((RelativeSpeed is Slow) or (RelativeSpeed is Equal) or (RelativeSpeed is Fast))) " +
|
|
"then AttackOrFlee is Attack"
|
|
};
|
|
|
|
static readonly string[] DefaultRulesInjuredOwnHealth = new[]
|
|
{
|
|
"if ((OwnHealth is Injured) " +
|
|
"and (EnemyHealth is NearDead) " +
|
|
"and ((RelativeAttackPower is Weak) or (RelativeAttackPower is Equal) or (RelativeAttackPower is Strong)) " +
|
|
"and ((RelativeSpeed is Slow) or (RelativeSpeed is Equal) or (RelativeSpeed is Fast))) " +
|
|
"then AttackOrFlee is Attack",
|
|
|
|
"if ((OwnHealth is Injured) " +
|
|
"and ((EnemyHealth is Injured) or (EnemyHealth is Normal)) " +
|
|
"and ((RelativeAttackPower is Equal) or (RelativeAttackPower is Strong)) " +
|
|
"and ((RelativeSpeed is Slow) or (RelativeSpeed is Equal) or (RelativeSpeed is Fast))) " +
|
|
"then AttackOrFlee is Attack",
|
|
|
|
"if ((OwnHealth is Injured) " +
|
|
"and ((EnemyHealth is Injured) or (EnemyHealth is Normal)) " +
|
|
"and (RelativeAttackPower is Weak) " +
|
|
"and (RelativeSpeed is Slow)) " +
|
|
"then AttackOrFlee is Attack",
|
|
|
|
"if ((OwnHealth is Injured) " +
|
|
"and ((EnemyHealth is Injured) or (EnemyHealth is Normal)) " +
|
|
"and (RelativeAttackPower is Weak) " +
|
|
"and ((RelativeSpeed is Equal) or (RelativeSpeed is Fast))) " +
|
|
"then AttackOrFlee is Flee",
|
|
|
|
"if ((OwnHealth is Injured) " +
|
|
"and ((EnemyHealth is NearDead) or (EnemyHealth is Injured) or (EnemyHealth is Normal)) " +
|
|
"and ((RelativeAttackPower is Weak) or (RelativeAttackPower is Equal) or (RelativeAttackPower is Strong)) " +
|
|
"and (RelativeSpeed is Slow)) " +
|
|
"then AttackOrFlee is Attack"
|
|
};
|
|
|
|
static readonly string[] DefaultRulesNearDeadOwnHealth = new[]
|
|
{
|
|
"if ((OwnHealth is NearDead) " +
|
|
"and ((EnemyHealth is NearDead) or (EnemyHealth is Injured)) " +
|
|
"and ((RelativeAttackPower is Equal) or (RelativeAttackPower is Strong)) " +
|
|
"and ((RelativeSpeed is Slow) or (RelativeSpeed is Equal))) " +
|
|
"then AttackOrFlee is Attack",
|
|
|
|
"if ((OwnHealth is NearDead) " +
|
|
"and ((EnemyHealth is NearDead) or (EnemyHealth is Injured)) " +
|
|
"and (RelativeAttackPower is Weak) " +
|
|
"and ((RelativeSpeed is Equal) or (RelativeSpeed is Fast))) " +
|
|
"then AttackOrFlee is Flee",
|
|
|
|
"if ((OwnHealth is NearDead) " +
|
|
"and (EnemyHealth is Normal) " +
|
|
"and (RelativeAttackPower is Weak) " +
|
|
"and ((RelativeSpeed is Equal) or (RelativeSpeed is Fast))) " +
|
|
"then AttackOrFlee is Flee",
|
|
|
|
"if (OwnHealth is NearDead) " +
|
|
"and (EnemyHealth is Normal) " +
|
|
"and ((RelativeAttackPower is Equal) or (RelativeAttackPower is Strong)) " +
|
|
"and (RelativeSpeed is Fast) " +
|
|
"then AttackOrFlee is Flee",
|
|
|
|
"if (OwnHealth is NearDead) " +
|
|
"and (EnemyHealth is Injured) " +
|
|
"and (RelativeAttackPower is Equal) " +
|
|
"and (RelativeSpeed is Fast) " +
|
|
"then AttackOrFlee is Flee"
|
|
};
|
|
|
|
public static readonly AttackOrFleeFuzzy Default = new AttackOrFleeFuzzy(null, null, null);
|
|
public static readonly AttackOrFleeFuzzy Rush = new AttackOrFleeFuzzy(new[]
|
|
{
|
|
"if ((OwnHealth is Normal) " +
|
|
"and ((EnemyHealth is NearDead) or (EnemyHealth is Injured) or (EnemyHealth is Normal)) " +
|
|
"and (RelativeAttackPower is Strong) " +
|
|
"and ((RelativeSpeed is Slow) or (RelativeSpeed is Equal) or (RelativeSpeed is Fast))) " +
|
|
"then AttackOrFlee is Attack",
|
|
|
|
"if ((OwnHealth is Normal) " +
|
|
"and ((EnemyHealth is NearDead) or (EnemyHealth is Injured) or (EnemyHealth is Normal)) " +
|
|
"and ((RelativeAttackPower is Weak) or (RelativeAttackPower is Equal)) " +
|
|
"and ((RelativeSpeed is Slow) or (RelativeSpeed is Equal) or (RelativeSpeed is Fast))) " +
|
|
"then AttackOrFlee is Flee"
|
|
}, null, null);
|
|
|
|
readonly MamdaniFuzzySystem fuzzyEngine = new MamdaniFuzzySystem();
|
|
|
|
public AttackOrFleeFuzzy(
|
|
IEnumerable<string> rulesForNormalOwnHealth,
|
|
IEnumerable<string> rulesForInjuredOwnHealth,
|
|
IEnumerable<string> rulesForNeadDeadOwnHealth)
|
|
{
|
|
lock (fuzzyEngine)
|
|
{
|
|
var playerHealthFuzzy = new FuzzyVariable("OwnHealth", 0.0, 100.0);
|
|
playerHealthFuzzy.Terms.Add(new FuzzyTerm("NearDead", new TrapezoidMembershipFunction(0, 0, 20, 40)));
|
|
playerHealthFuzzy.Terms.Add(new FuzzyTerm("Injured", new TrapezoidMembershipFunction(30, 50, 50, 70)));
|
|
playerHealthFuzzy.Terms.Add(new FuzzyTerm("Normal", new TrapezoidMembershipFunction(50, 80, 100, 100)));
|
|
fuzzyEngine.Input.Add(playerHealthFuzzy);
|
|
|
|
var enemyHealthFuzzy = new FuzzyVariable("EnemyHealth", 0.0, 100.0);
|
|
enemyHealthFuzzy.Terms.Add(new FuzzyTerm("NearDead", new TrapezoidMembershipFunction(0, 0, 20, 40)));
|
|
enemyHealthFuzzy.Terms.Add(new FuzzyTerm("Injured", new TrapezoidMembershipFunction(30, 50, 50, 70)));
|
|
enemyHealthFuzzy.Terms.Add(new FuzzyTerm("Normal", new TrapezoidMembershipFunction(50, 80, 100, 100)));
|
|
fuzzyEngine.Input.Add(enemyHealthFuzzy);
|
|
|
|
var relativeAttackPowerFuzzy = new FuzzyVariable("RelativeAttackPower", 0.0, 1000.0);
|
|
relativeAttackPowerFuzzy.Terms.Add(new FuzzyTerm("Weak", new TrapezoidMembershipFunction(0, 0, 70, 90)));
|
|
relativeAttackPowerFuzzy.Terms.Add(new FuzzyTerm("Equal", new TrapezoidMembershipFunction(85, 100, 100, 115)));
|
|
relativeAttackPowerFuzzy.Terms.Add(new FuzzyTerm("Strong", new TrapezoidMembershipFunction(110, 150, 150, 1000)));
|
|
fuzzyEngine.Input.Add(relativeAttackPowerFuzzy);
|
|
|
|
var relativeSpeedFuzzy = new FuzzyVariable("RelativeSpeed", 0.0, 1000.0);
|
|
relativeSpeedFuzzy.Terms.Add(new FuzzyTerm("Slow", new TrapezoidMembershipFunction(0, 0, 70, 90)));
|
|
relativeSpeedFuzzy.Terms.Add(new FuzzyTerm("Equal", new TrapezoidMembershipFunction(85, 100, 100, 115)));
|
|
relativeSpeedFuzzy.Terms.Add(new FuzzyTerm("Fast", new TrapezoidMembershipFunction(110, 150, 150, 1000)));
|
|
fuzzyEngine.Input.Add(relativeSpeedFuzzy);
|
|
|
|
var attackOrFleeFuzzy = new FuzzyVariable("AttackOrFlee", 0.0, 50.0);
|
|
attackOrFleeFuzzy.Terms.Add(new FuzzyTerm("Attack", new TrapezoidMembershipFunction(0, 15, 15, 30)));
|
|
attackOrFleeFuzzy.Terms.Add(new FuzzyTerm("Flee", new TrapezoidMembershipFunction(25, 35, 35, 50)));
|
|
fuzzyEngine.Output.Add(attackOrFleeFuzzy);
|
|
|
|
foreach (var rule in rulesForNormalOwnHealth ?? DefaultRulesNormalOwnHealth)
|
|
AddFuzzyRule(rule);
|
|
foreach (var rule in rulesForInjuredOwnHealth ?? DefaultRulesInjuredOwnHealth)
|
|
AddFuzzyRule(rule);
|
|
foreach (var rule in rulesForNeadDeadOwnHealth ?? DefaultRulesNearDeadOwnHealth)
|
|
AddFuzzyRule(rule);
|
|
}
|
|
}
|
|
|
|
void AddFuzzyRule(string rule)
|
|
{
|
|
fuzzyEngine.Rules.Add(fuzzyEngine.ParseRule(rule));
|
|
}
|
|
|
|
public bool CanAttack(IEnumerable<Actor> ownUnits, IEnumerable<Actor> enemyUnits)
|
|
{
|
|
double attackChance;
|
|
var inputValues = new Dictionary<FuzzyVariable, double>();
|
|
lock (fuzzyEngine)
|
|
{
|
|
inputValues.Add(fuzzyEngine.InputByName("OwnHealth"), NormalizedHealth(ownUnits, 100));
|
|
inputValues.Add(fuzzyEngine.InputByName("EnemyHealth"), NormalizedHealth(enemyUnits, 100));
|
|
inputValues.Add(fuzzyEngine.InputByName("RelativeAttackPower"), RelativePower(ownUnits, enemyUnits));
|
|
inputValues.Add(fuzzyEngine.InputByName("RelativeSpeed"), RelativeSpeed(ownUnits, enemyUnits));
|
|
|
|
var result = fuzzyEngine.Calculate(inputValues);
|
|
attackChance = result[fuzzyEngine.OutputByName("AttackOrFlee")];
|
|
}
|
|
|
|
return !double.IsNaN(attackChance) && attackChance < 30.0;
|
|
}
|
|
|
|
static float NormalizedHealth(IEnumerable<Actor> actors, float normalizeByValue)
|
|
{
|
|
var sumOfMaxHp = 0;
|
|
var sumOfHp = 0;
|
|
foreach (var a in actors)
|
|
{
|
|
if (a.Info.HasTraitInfo<HealthInfo>())
|
|
{
|
|
sumOfMaxHp += a.Trait<Health>().MaxHP;
|
|
sumOfHp += a.Trait<Health>().HP;
|
|
}
|
|
}
|
|
|
|
if (sumOfMaxHp == 0)
|
|
return 0.0f;
|
|
|
|
return (sumOfHp * normalizeByValue) / sumOfMaxHp;
|
|
}
|
|
|
|
static float RelativePower(IEnumerable<Actor> own, IEnumerable<Actor> enemy)
|
|
{
|
|
return RelativeValue(own, enemy, 100, SumOfValues<AttackBaseInfo>, a =>
|
|
{
|
|
var sumOfDamage = 0;
|
|
var arms = a.TraitsImplementing<Armament>();
|
|
foreach (var arm in arms)
|
|
{
|
|
var burst = arm.Weapon.Burst;
|
|
|
|
// For simplicity's sake, we're only factoring in the first burst delay, as more than one burst delay is extremely rare.
|
|
// Additionally, clamping total delay to minimum of 1 (ReloadDelay: 0 is technically possible) and maximum of 200.
|
|
// High dmg/low ROF weapons shouldn't be rated too low as high dmg/shot can outweigh mere dps due to likelier 1-hit-kills.
|
|
// TODO: Revisit this at some point to replace the arbitrary cap with something smarter.
|
|
var totalReloadDelay = arm.Weapon.ReloadDelay + (arm.Weapon.BurstDelays[0] * (burst - 1)).Clamp(1, 200);
|
|
var damageWarheads = arm.Weapon.Warheads.OfType<DamageWarhead>();
|
|
foreach (var warhead in damageWarheads)
|
|
sumOfDamage += (warhead.Damage * burst / totalReloadDelay) * 100;
|
|
}
|
|
|
|
return sumOfDamage;
|
|
});
|
|
}
|
|
|
|
static float RelativeSpeed(IEnumerable<Actor> own, IEnumerable<Actor> enemy)
|
|
{
|
|
return RelativeValue(own, enemy, 100, Average<MobileInfo>, (Actor a) => a.Info.TraitInfo<MobileInfo>().Speed);
|
|
}
|
|
|
|
static float RelativeValue(IEnumerable<Actor> own, IEnumerable<Actor> enemy, float normalizeByValue,
|
|
Func<IEnumerable<Actor>, Func<Actor, int>, float> relativeFunc, Func<Actor, int> getValue)
|
|
{
|
|
if (!enemy.Any())
|
|
return 999.0f;
|
|
|
|
if (!own.Any())
|
|
return 0.0f;
|
|
|
|
var relative = (relativeFunc(own, getValue) / relativeFunc(enemy, getValue)) * normalizeByValue;
|
|
return relative.Clamp(0.0f, 999.0f);
|
|
}
|
|
|
|
static float SumOfValues<TTraitInfo>(IEnumerable<Actor> actors, Func<Actor, int> getValue) where TTraitInfo : ITraitInfo
|
|
{
|
|
var sum = 0;
|
|
foreach (var a in actors)
|
|
if (a.Info.HasTraitInfo<TTraitInfo>())
|
|
sum += getValue(a);
|
|
|
|
return sum;
|
|
}
|
|
|
|
static float Average<TTraitInfo>(IEnumerable<Actor> actors, Func<Actor, int> getValue) where TTraitInfo : ITraitInfo
|
|
{
|
|
var sum = 0;
|
|
var countActors = 0;
|
|
foreach (var a in actors)
|
|
{
|
|
if (a.Info.HasTraitInfo<TTraitInfo>())
|
|
{
|
|
sum += getValue(a);
|
|
countActors++;
|
|
}
|
|
}
|
|
|
|
if (countActors == 0)
|
|
return 0.0f;
|
|
|
|
return sum / countActors;
|
|
}
|
|
}
|
|
}
|