added gamescreen UI and simple start menu

Assets/Darkmatter/Code/Presentation/UI/GameScreenController.cs

@@ -0,0 +1,40 @@
+using Darkmatter.Core;
+using UnityEngine;
+
+namespace Darkmatter.Presentation
+{
+    public class GameScreenController : IGameScreenController
+    {
+        GameScreenView gameScreenView;
+
+        public GameScreenController(GameScreenView gameScreenView)
+        {
+            this.gameScreenView = gameScreenView;
+        }
+        public void UpdateFireableBulletCount(int bulletCount)
+        {
+            gameScreenView.UpdateBulletText(bulletCount);
+        }
+
+        public void UpdateRemainingZombiesCount(int zombiesCount)
+        {
+            gameScreenView.UpdateRemainingZombiesCountText(zombiesCount);
+        }
+
+        public void UpdateTotalZombiesCount(int totalZombiesCount)
+        {
+            gameScreenView.UpdateTotalZombiesCount(totalZombiesCount);
+        }
+
+        public void ShowGameOverText()
+        {
+            gameScreenView.ShowGameOver();
+            
+        }
+
+        public void ShowPlayerHealth(int health)
+        {
+           gameScreenView.ShowPlayerHealth(health);
+        }
+    }
+}

Assets/Darkmatter/Code/Presentation/UI/GameScreenController.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 7143025033c7d9840a214fb5c4bfefb9

Assets/Darkmatter/Code/Presentation/UI/GameScreenView.cs

@@ -0,0 +1,45 @@
+using System;
+using TMPro;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+namespace Darkmatter.Presentation
+{
+    public class GameScreenView : MonoBehaviour
+    {
+        public TextMeshProUGUI fireableBulletText;
+        public TextMeshProUGUI remainingZombiesCountText;
+        public TextMeshProUGUI totalZombiesCountText;
+        public TextMeshProUGUI playerHealthText;
+        public GameObject GameOverObject;
+
+        public void UpdateBulletText(int bulletCount)
+        {
+            fireableBulletText.text = bulletCount.ToString();
+        }
+
+        public void UpdateRemainingZombiesCountText(int zombiesCount)
+        {
+            remainingZombiesCountText.text = zombiesCount.ToString();
+        }
+
+        public void UpdateTotalZombiesCount(int totalZombies)
+        {
+            totalZombiesCountText.text = totalZombies.ToString();   
+        }
+        public void ShowPlayerHealth(int health)
+        {
+            playerHealthText.text = health.ToString();
+        }
+       public void ShowGameOver()
+        {
+            GameOverObject.SetActive(true);
+            Invoke("ChangeScene", 2f);
+        }
+
+        void ChangeScene()
+        {
+            SceneManager.LoadScene(0);
+        }
+    }
+}

Assets/Darkmatter/Code/Presentation/UI/GameScreenView.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 53b791085ea93e74eb91492d67fa02a6

Assets/Darkmatter/Code/Presentation/UI/MenuScreen.cs

@@ -5,6 +5,10 @@ namespace Darkmatter.Presentation
 {
     public class MenuScreen : MonoBehaviour
     {
+        private void Start()
+        {
+            Cursor.lockState = CursorLockMode.None;
+        }
         public void OnPlayBtnClick()
         {
             SceneManager.LoadScene(1);