cirnogodot/Scripts/Resources/DecreasingSpeedModifier.cs

using Godot;

namespace Cirno.Scripts.Resources;

[GlobalClass]
public partial class DecreasingSpeedModifier : Resource, IBulletModifier 
{
    [Export] private float decreaseRate = 0.1f;

    public float ModifySpeed(float baseSpeed, int bulletIndex)
    {
        return Mathf.Max(0, baseSpeed - (decreaseRate * bulletIndex));
    }
}