// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.

#nullable disable

using osu.Game.Rulesets.Difficulty.Preprocessing;
using osu.Game.Rulesets.Difficulty.Skills;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Taiko.Difficulty.Preprocessing;

namespace osu.Game.Rulesets.Taiko.Difficulty.Skills
{
    /// <summary>
    /// Calculates the colour coefficient of taiko difficulty.
    /// </summary>
    public class Colour : StrainDecaySkill
    {
        protected override double SkillMultiplier => 0.12;

        // This is set to decay slower than other skills, due to the fact that only the first note of each Mono/Colour/Coupled
        // encoding having any difficulty values, and we want to allow colour difficulty to be able to build up even on
        // slower maps.
        protected override double StrainDecayBase => 0.8;

        public Colour(Mod[] mods)
            : base(mods)
        {
        }

        protected override double StrainValueOf(DifficultyHitObject current)
        {
            double difficulty = ((TaikoDifficultyHitObject)current).Colour?.EvaluatedDifficulty ?? 0;
            return difficulty;
        }
    }
}