Added project

Platformer/Assets/Scripts/Arrow.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+[RequireComponent(
+    typeof(Rigidbody2D),
+    typeof(SpriteRenderer),
+    typeof(TriggerDamage)
+    )
+]
+public class Arrow : MonoBehaviour, IObjectDestroyer {
+
+    [SerializeField] private float force;
+    [SerializeField] private float lifeTime;
+    
+    private SpriteRenderer m_SpriteRenderer;
+    private Rigidbody2D m_Rigidbody2D;
+    private TriggerDamage m_TriggerDamage;
+    private PlayerController player;
+    
+    public float Force {
+        get => force;
+        set => force = value;
+    }
+
+    private void Awake() {
+        m_SpriteRenderer = GetComponent<SpriteRenderer>();
+        m_Rigidbody2D = GetComponent<Rigidbody2D>();
+        m_TriggerDamage = GetComponent<TriggerDamage>();
+    }
+    
+    public void Destroy(GameObject gameObj) {
+        player.ReturnArrowToPool(this);
+    }
+
+    public void SetImpulse(Vector2 direction, float force, int bonusDamage, PlayerController player) {
+        this.player = player;
+        m_TriggerDamage.Init(this);
+        m_TriggerDamage.Parent = player.gameObject;
+        m_TriggerDamage.Damage += bonusDamage;
+        m_Rigidbody2D.AddForce(direction * force, ForceMode2D.Impulse);
+        if (force < 0) {
+            transform.rotation = Quaternion.Euler(0, 180, 0);
+        }
+        StartCoroutine(StartLife());
+    }
+
+    private IEnumerator StartLife() {
+        yield return new WaitForSeconds(lifeTime);
+        Destroy(gameObject);
+    }
+}