BITFALL/Assets/Artists/Scripts/Feel/PlayerHitMotion.cs

using System.Collections;
using System.Collections.Generic;
using BITKit.FPS;
using UnityEngine;

namespace BITKit.Entities.Player.Feel
{
	public sealed class PlayerHitMotion : EntityBehavior
	{
		[SerializeField] private Spring3 spring;
		[SerializeField] private LocationAdditive[] locationAdditives;
		[SerializeField] private AnimationCurve damageBasedMotion;

		[SerializeField] private Vector3 eulerWeight=Vector3.one;
		[SerializeField] private Vector3 positionWeight=Vector3.one;
		public override void OnStart()
		{
			UnityEntity.AddListener<DamageMessage>(OnDamaged);
		}

		private void OnDamaged(DamageMessage obj)
		{
			if (obj.Target != UnityEntity) return;
			var damage = damageBasedMotion.Evaluate(obj.Damage);
			spring.value = new Vector3(damage.Random(), damage.Random(), damage.Random());
		}

		public override void OnUpdate(float deltaTime)
		{
			spring.Update(deltaTime,default);
			
			var euler = MathV.Multiply(spring.value, eulerWeight);
			var position = MathV.Multiply(spring.value, positionWeight);
			foreach (var x in locationAdditives)
			{
				x.AddEuler(euler);
				x.AddPosition(position);
			}
		}
	}

}