Added project

Platformer/Assets/Scripts/CollisionDamage.cs

@@ -0,0 +1,51 @@
+using System;
+using UnityEngine;
+
+public class CollisionDamage : MonoBehaviour {
+
+    [SerializeField] private int damage = 10;
+    [SerializeField] private Animator animator;
+
+    private Health m_Health;
+    private static readonly int Direction = Animator.StringToHash("Direction");
+
+    public float direction { get; private set; }
+
+    private void OnCollisionStay2D(Collision2D other) {
+        if (GameManager.Instance.healthContainer.ContainsKey(other.gameObject)) {
+            m_Health = GameManager.Instance.healthContainer[other.gameObject];
+            direction = (other.transform.position - transform.position).x;
+            animator.SetFloat(Direction, Mathf.Abs(direction));
+        }
+    }
+
+    private void OnCollisionExit2D(Collision2D other) {
+        Reset();
+    }
+
+    private void OnTriggerStay2D(Collider2D other) {
+        if (GameManager.Instance.healthContainer.ContainsKey(other.gameObject)) {
+            m_Health = GameManager.Instance.healthContainer[other.gameObject];
+            direction = (other.transform.position - transform.position).x;
+            animator.SetFloat(Direction, Mathf.Abs(direction));
+        }
+    }
+
+    private void OnTriggerExit2D(Collider2D other) {
+        Reset();
+    }
+
+    public void SetDamage() {
+        if (m_Health != null) {
+            m_Health.TakeHit(damage);
+        }
+        Reset();
+    }
+
+    private void Reset() {
+        direction = 0f;
+        animator.SetFloat(Direction, 0f);
+        m_Health = null;
+    }
+    
+}