Calculator.SimpleVariance.cs

using System.Text;
using BattleTech;

namespace WeaponRealizer
{
    static partial class Calculator
    {
        private static class SimpleVariance
        {
            public static bool IsApplicable(Weapon weapon)
            {
                return Core.ModSettings.SimpleVariance &&
                       weapon.weaponDef.DamageVariance > 0;
            }

            public static float Calculate(Weapon weapon, float rawDamage)
            {
                var damagePerShot = weapon.DamagePerShot;
                var adjustment = rawDamage / damagePerShot;
                var variance = weapon.weaponDef.DamageVariance;
                var roll = NormalDistribution.Random(
                    new VarianceBounds(
                        damagePerShot - variance,
                        damagePerShot + variance,
                        Core.ModSettings.StandardDeviationSimpleVarianceMultiplier * variance
                    ));
                var variantDamage = roll * adjustment;
            
                var sb = new StringBuilder();
                sb.AppendLine($"roll: {roll}");
                sb.AppendLine($"damagePerShot: {damagePerShot}");
                sb.AppendLine($"variance: {variance}");
                sb.AppendLine($"adjustment: {adjustment}");
                sb.AppendLine($"variantDamage: {variantDamage}");
                Logger.Debug(sb.ToString());

                return variantDamage;
            }
        }
    }
}