Merge, ability cluster

MrBigsock/Assets/Code/Core/Abilities/Base/AbilityEntity.cs

+using System.Collections;
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.InputSystem;
+
+
+namespace BigSock {
+	/*
+		An object representing an ability held by a player.
+	*/
+	public class AbilityEntity {
+
+		// The ability held in this slot.
+		public IAbility Ability { get; }
+
+		// The index of the ability
+		public int Index { get; }
+
+		// The time this ability started charging.
+		public float ChargeStarted { get; set; }
+
+		// The keys bound to this ability.
+		public List<KeyCode> Keys { get; }
+
+
+		// Indicates whether or not the ability is charging.
+		public bool IsCharging => ChargeStarted > 0;
+
+		// The time this ability has been charging.
+		public float ChargeTime => Time.time - ChargeStarted;
+
+		// The percent of maximum time the ability has charged for.
+		public float ChargePercent => (Ability.FireType == FireType.Charge && IsCharging)
+			? Math.Clamp(ChargeTime / Ability.MaxCharge, 0, 1)
+			: 0;
+
+
+		// How far into the cooldown the attack is.
+		public float CooldownPercent 
+			=> (float) Math.Clamp((DateTime.Now - Ability.NextTimeCanUse + Ability.Cooldown) / Ability.Cooldown, 0, 1);
+
+
+		public AbilityEntity(IAbility ability, int index, List<KeyCode> keys = null) {
+			if(ability == null) throw new ArgumentNullException(nameof(ability));
+
+			Ability = ability;
+			Index = index;
+			Keys = keys ?? new List<KeyCode>();
+		}
+	}
+}