Added collision detection with enemies

Assets/CollisionCheck.cs

@@ -0,0 +1,13 @@
+using UnityEngine;
+using System.Collections;
+
+public class CollisionCheck : MonoBehaviour {
+
+    void OnCollisionEnter2D(Collision2D col)
+    {
+        if(col.gameObject.name == "Enemy")
+        {
+            Debug.Log(gameObject.GetComponent<Health>().removeHP(1));
+        }
+    }
+}

Assets/CollisionCheck.cs.meta

@@ -0,0 +1,12 @@
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+guid: 1a250e41dad412f41a2bdfb3f462c130
+timeCreated: 1447711857
+licenseType: Free
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+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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Assets/Health.cs

@@ -31,4 +31,9 @@ public class Health : MonoBehaviour {
     {
         return hp;
     }
+
+    public void setMaxHP(int amount)
+    {
+        maxHP = amount;
+    }
 }

Assets/Scenes/RemyScene.unity

@@ -321,6 +321,10 @@ Prefab:
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       value: 4
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+    - target: {fileID: 431276, guid: b7819e17682d74b45a71d6831a413e0b, type: 2}
+      propertyPath: m_RootOrder
+      value: 0
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     m_RemovedComponents: []
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@@ -328,6 +332,29 @@ Prefab:
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Assets/Scripts/PlayerBehavior.cs

@@ -1,7 +1,8 @@
 using UnityEngine;
 using System.Collections;
 
-public class PlayerBehavior : MonoBehaviour {
+public class PlayerBehavior : MonoBehaviour
+{
 
     public float maxSpeed = 50.0f;
 
@@ -17,25 +18,30 @@ public class PlayerBehavior : MonoBehaviour {
     private bool facingRight = true;
 
     // Use this for initialization
-	void Start () {
+    void Start()
+    {
         rb = gameObject.GetComponent<Rigidbody2D>();
         anim = gameObject.GetComponent<Animator>();
     }
 
     // Update is called once per frame
-	void Update () {
-        if(grounded && Input.GetAxis("Vertical") > 0.0f)
+    void Update()
+    {
+        if (grounded && Input.GetAxis("Vertical") > 0.0f)
         {
             anim.SetBool("Ground", false);
             rb.AddForce(new Vector2(0, jumpForce));
         }
 
         //for the shooting animations
-		if (Input.GetButtonDown ("Fire1")) {
+        if (Input.GetButtonDown("Fire1"))
+        {
             anim.SetBool("Shooting", true);
 
-		} else {
-			anim.SetBool ("Shooting", false);
+        }
+        else
+        {
+            anim.SetBool("Shooting", false);
         }
     }