[Add/Update] Add TimeManager, Update GameManager to bind/unbind events

MissileCommander/Assets/Scenes/SampleScene.unity

@@ -148,7 +148,7 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 1776773259}
-  m_RootOrder: 5
+  m_RootOrder: 4
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &676322499
 GameObject:
@@ -263,36 +263,6 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
---- !u!1 &972352209
-GameObject:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  serializedVersion: 6
-  m_Component:
-  - component: {fileID: 972352210}
-  m_Layer: 0
-  m_Name: BuildingLocator
-  m_TagString: Untagged
-  m_Icon: {fileID: 0}
-  m_NavMeshLayer: 0
-  m_StaticEditorFlags: 0
-  m_IsActive: 1
---- !u!4 &972352210
-Transform:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 972352209}
-  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 0, y: -4, z: 0}
-  m_LocalScale: {x: 1, y: 1, z: 1}
-  m_Children: []
-  m_Father: {fileID: 1776773259}
-  m_RootOrder: 3
-  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &1082526252
 GameObject:
   m_ObjectHideFlags: 0
@@ -321,7 +291,7 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 1776773259}
-  m_RootOrder: 4
+  m_RootOrder: 3
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &1092131172
 GameObject:
@@ -390,7 +360,7 @@ MonoBehaviour:
   buildingLocators:
   - {fileID: 676322500}
   - {fileID: 2063700999}
-  - {fileID: 972352210}
+  - {fileID: 0}
   - {fileID: 1082526253}
   - {fileID: 598110664}
 --- !u!4 &1776773259
@@ -407,7 +377,6 @@ Transform:
   - {fileID: 1092131173}
   - {fileID: 676322500}
   - {fileID: 2063700999}
-  - {fileID: 972352210}
   - {fileID: 1082526253}
   - {fileID: 598110664}
   m_Father: {fileID: 0}

MissileCommander/Assets/_Scripts/BuildingManager.cs

@@ -17,8 +17,6 @@ public BuildingManager(Building buildingPrefab, Transform[] buildingLocators)
 
             Debug.Assert(this._buildingPrefab != null, "BuildingManager : Prefab is null!");
             Debug.Assert(this._buildingLocators != null, "BuildingManager : Locators are null!");
-
-            SpawnBuildings();
         }
 
         public void SpawnBuildings()
@@ -36,5 +34,10 @@ public void SpawnBuildings()
                 _buildings.Add(building);
             }
         }
+
+        public void OnGameStart()
+        {
+            SpawnBuildings();
+        }
     }
 }

MissileCommander/Assets/_Scripts/BulletLauncher.cs

@@ -11,6 +11,7 @@ public class BulletLauncher : MonoBehaviour
         [SerializeField] private float fireDelay = 0.5f;
         private float _elapsedFireTime;
         private bool _canShoot = true;
+        private bool _isGameStarted = false;
 
         private Factory _bulletFactory;
         private Factory _explosionFactory;
@@ -23,6 +24,8 @@ private void Awake()
 
         private void Update()
         {
+            if (!_isGameStarted) { return; }
+
             if (!_canShoot)
             {
                 _elapsedFireTime += Time.deltaTime;
@@ -34,8 +37,14 @@ private void Update()
             }
         }
 
+        public void OnGameStart()
+        {
+            _isGameStarted = true;
+        }
+
         public void OnFireButtonPressed(Vector3 mousePosition)
         {
+            if (!_isGameStarted) { return; }
             if (!_canShoot) { return; }
 
             // Instantiate Bullet

MissileCommander/Assets/_Scripts/GameManager.cs

@@ -5,6 +5,7 @@
  *     2. Create instance of any GameController Class and assign it to BulletLauncher.
  * ===================================================================================*/
 
+using System;
 using UnityEngine;
 
 namespace MissileCommander
@@ -15,19 +16,44 @@ public class GameManager : MonoBehaviour
         [SerializeField] private Transform launcherLocator;
         [SerializeField] private Building buildingPrefab;
         [SerializeField] private Transform[] buildingLocators;
-
+
+        private MouseGameController _mouseGameController;
         private BulletLauncher _launcher;
         private BuildingManager _buildingMgr;
+        private TimeManager _timeMgr;
 
-        private void Awake()
+        private void Start()
         {
+            _timeMgr = gameObject.AddComponent<TimeManager>();
+
             _launcher = Instantiate(launcherPrefab);
             _launcher.transform.position = launcherLocator.position;
 
             _buildingMgr = new BuildingManager(buildingPrefab, buildingLocators);
+
+            _mouseGameController = gameObject.AddComponent<MouseGameController>();
+
+            BindEvents();
+            _timeMgr.StartGame();
+        }
 
-            MouseGameController mouseController = gameObject.AddComponent<MouseGameController>();
-            mouseController.OnFireButtonPressed += _launcher.OnFireButtonPressed;
+        private void OnDestroy()
+        {
+            UnbindEvents();
+        }
+
+        private void BindEvents()
+        {
+            _mouseGameController.OnFireButtonPressed += _launcher.OnFireButtonPressed;
+            _timeMgr.onGameStart += _buildingMgr.OnGameStart;
+            _timeMgr.onGameStart += _launcher.OnGameStart;
+        }
+
+        private void UnbindEvents()
+        {
+            _mouseGameController.OnFireButtonPressed -= _launcher.OnFireButtonPressed;
+            _timeMgr.onGameStart -= _buildingMgr.OnGameStart;
+            _timeMgr.onGameStart -= _launcher.OnGameStart;
         }
     }
 }

MissileCommander/Assets/_Scripts/TimeManager.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections;
+using UnityEngine;
+
+namespace MissileCommander
+{
+    public class TimeManager : MonoBehaviour
+    {
+        public event Action onGameStart;
+        private bool _isGameStarted = false;
+
+        public void StartGame(float startDelay = 1f)
+        {
+            if (_isGameStarted) { return; }
+
+            _isGameStarted = true;
+            StartCoroutine(DelayedGameStart(startDelay));
+        }
+
+        private IEnumerator DelayedGameStart(float delayTime)
+        {
+            WaitForSeconds delay = new WaitForSeconds(delayTime);
+            yield return delay;
+
+            onGameStart?.Invoke();
+        }
+    }
+}