osu/osu.Game/Rulesets/Mods/ModEasy.cs

// 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.

using System;
using osu.Framework.Graphics.Sprites;
using osu.Game.Beatmaps;
using osu.Game.Graphics;
using osu.Game.Rulesets.Scoring;

namespace osu.Game.Rulesets.Mods
{
    public abstract class ModEasy : Mod, IApplicableToDifficulty, IApplicableToScoreProcessor
    {
        public static int Lives = 2;
        public override string Name => "Easy";
        public override string Acronym => "EZ";
        public override IconUsage Icon => OsuIcon.ModEasy;
        public override ModType Type => ModType.DifficultyReduction;
        public override double ScoreMultiplier => 0.5;
        public override bool Ranked => true;
        public override Type[] IncompatibleMods => new[] { typeof(ModHardRock) };

        public void ApplyToDifficulty(BeatmapDifficulty difficulty)
        {
            const float ratio = 0.5f;
            difficulty.CircleSize *= ratio;
            difficulty.ApproachRate *= ratio;
            difficulty.DrainRate *= ratio;
            difficulty.OverallDifficulty *= ratio;
        }

        public void ApplyToScoreProcessor(ScoreProcessor scoreProcessor)
        {
            scoreProcessor.Health.ValueChanged += valueChanged =>
            {
                if (scoreProcessor.Health.Value == 0)
                {
                    if (Lives != 0)
                    {
                        Lives--;
                        scoreProcessor.Health.Value = 100;
                    }
                    else
                    {
                        Lives = 2;
                    }
                }
            };
        }
    }
}