private double chanceToHit(double attackAccuracy, double attackerDetection, DesignStats targetStats, bool targetCloaked)
{
var targetStealth = targetStats.Jamming + (targetCloaked ? this.mainGame.Statics.ShipFormulas.NaturalCloakBonus : 0);
return((targetStealth > attackerDetection ? Math.Pow(SigmoidBase, targetStealth - attackerDetection) : 1) *
Probability(attackAccuracy - targetStats.Evasion));
}
private double refitCost(Design fromDesign, Design toDesign, DesignStats toDesignStats, StaticsDB statics)
{
double cost = 0;
var hullVars = new Var(AComponentType.LevelKey, toDesign.Hull.Level).Get;
var levelRefitCost = statics.ShipFormulas.LevelRefitCost;
var hullCost = refitComponentCost(fromDesign.Hull, toDesign.Hull, x => x.Cost, null, levelRefitCost);
if (hullCost > 0)
{
cost += hullCost;
}
else
{
hullCost = toDesign.Hull.TypeInfo.Cost.Evaluate(new Var(AComponentType.LevelKey, toDesign.Hull.Level).Get);
cost += hullCost * statics.ShipFormulas.ArmorCostPortion * refitComponentCost(fromDesign.Armor, toDesign.Armor, x => new Formula(1), null, levelRefitCost);
cost += hullCost * statics.ShipFormulas.ReactorCostPortion * refitComponentCost(fromDesign.Reactor, toDesign.Reactor, x => new Formula(1), null, levelRefitCost);
cost += hullCost * statics.ShipFormulas.SensorCostPortion * refitComponentCost(fromDesign.Sensors, toDesign.Sensors, x => new Formula(1), null, levelRefitCost);
cost += hullCost * statics.ShipFormulas.ThrustersCostPortion * refitComponentCost(fromDesign.Thrusters, toDesign.Thrusters, x => new Formula(1), null, levelRefitCost);
}
var toDesignVars = DesignBaseVars(toDesign.Hull, toDesign.MissionEquipment, toDesign.SpecialEquipment, statics);
cost += refitComponentCost(fromDesign.IsDrive, toDesign.IsDrive, x => x.Cost, new Var(IsDriveType.SizeKey, toDesignStats.IsDriveSize), levelRefitCost);
cost += refitComponentCost(fromDesign.Shield, toDesign.Shield, x => x.Cost, new Var(ShieldType.SizeKey, toDesignStats.ShieldSize), levelRefitCost);
cost += refitComponentCost(fromDesign.MissionEquipment, toDesign.MissionEquipment, x => x.Cost, null, levelRefitCost);
cost += refitComponentCost(fromDesign.SpecialEquipment, toDesign.SpecialEquipment, x => x.Cost, new Var(HullType.SizeKey, toDesign.Hull.TypeInfo.SpaceFree.Evaluate(hullVars)), levelRefitCost);
return(cost);
}
protected void rollCloaking(Combatant unit, DesignStats stats, IEnumerable <Player> players)
{
unit.CloakedFor.Clear();
foreach (var player in players.Where(x => x != unit.Owner))
{
if (Probability(stats.Cloaking - sensorStrength(unit.Position, player)) > this.battleGame.Rng.NextDouble())
{
unit.CloakedFor.Add(player);
}
}
}
private static void doRestDamage(double maxTargets, double firePower, double shieldEfficiency, double armorEfficiency, Combatant target, DesignStats targetStats)
{
var splashTargets = Methods.Clamp(maxTargets, 0, Math.Max(target.Ships.Quantity - 1, 0));
if (target.RestShields > 0)
{
double shieldFire = firePower - Reduce(firePower, targetStats.ShieldThickness, shieldEfficiency);
double shieldDamage = Reduce(shieldFire, targetStats.ShieldReduction, 1);
firePower -= shieldFire - shieldDamage; //damage reduction difference
shieldDamage = Math.Min(shieldDamage * splashTargets, target.RestShields);
target.RestShields -= shieldDamage;
firePower -= shieldDamage;
}
double armorDamage = Reduce(firePower, targetStats.ArmorReduction, armorEfficiency);
target.RestArmor -= armorDamage * splashTargets;
if (target.RestArmor <= 0)
{
target.Ships.Quantity = Math.Min(target.Ships.Quantity, 1);
target.RestArmor = 0;
target.RestShields = 0;
}
}
private static void doTopDamage(double firePower, double shieldEfficiency, double armorEfficiency, Combatant target, DesignStats targetStats)
{
if (target.TopShields > 0)
{
double shieldFire = firePower - Reduce(firePower, targetStats.ShieldThickness, shieldEfficiency);
double shieldDamage = Reduce(shieldFire, targetStats.ShieldReduction, 1);
firePower -= shieldFire - shieldDamage; //damage reduction difference
shieldDamage = Math.Min(shieldDamage, target.TopShields);
target.TopShields -= shieldDamage;
firePower -= shieldDamage;
}
double armorDamage = Reduce(firePower, targetStats.ArmorReduction, armorEfficiency);
target.TopArmor -= armorDamage;
if (target.TopArmor <= 0)
{
target.Ships.Quantity--;
var safeCount = Math.Max(target.Ships.Quantity, 1);
target.TopArmor = target.RestArmor / safeCount;
target.TopShields = target.RestShields / safeCount;
target.RestArmor -= target.TopArmor;
target.RestShields -= target.TopShields;
}
}
private double attackTop(Combatant attacker, AbilityStats abilityStats, double quantity, Combatant target, DesignStats targetStats)
{
var distance = Methods.HexDistance(attacker.Position, target.Position);
var detection = sensorStrength(target.Position, attacker.Owner);
var targetStealth = targetStats.Jamming + (target.CloakedFor.Contains(attacker.Owner) ? this.mainGame.Statics.ShipFormulas.NaturalCloakBonus : 0);
var spent = 0.0;
while (target.HitPoints > 0 && quantity > spent)
{
spent++;
if (targetStealth > detection && Math.Pow(sigmoidBase, targetStealth - detection) > this.game.Rng.NextDouble())
{
continue;
}
if (Probability(abilityStats.Accuracy - targetStats.Evasion + distance * abilityStats.AccuracyRangePenalty) < this.game.Rng.NextDouble())
{
continue;
}
double firePower = abilityStats.FirePower;
if (target.ShieldPoints > 0)
{
double shieldFire = firePower - Reduce(firePower, targetStats.ShieldThickness, abilityStats.ShieldEfficiency);
double shieldDamage = Reduce(shieldFire, targetStats.ShieldReduction, 1);
firePower -= shieldFire - shieldDamage; //damage reduction difference
shieldDamage = Math.Min(shieldDamage, target.ShieldPoints);
target.ShieldPoints -= shieldDamage;
firePower -= shieldDamage;
}
double armorDamage = Reduce(firePower, targetStats.ArmorReduction, abilityStats.ArmorEfficiency);
target.HitPoints -= armorDamage;
}
if (target.HitPoints <= 0)
{
target.Ships.Quantity--;
target.HitPoints = targetStats.HitPoints;
target.ShieldPoints = targetStats.ShieldPoints;
}
return(spent);
}