Added UnityService. Using UnityService cached camera for gesture handlers

Author: matt-aitken

Gestures/GestureHandler.cs

@@ -1,4 +1,5 @@
 using DigitalRubyShared;
+using TinyMatter.CardClash.Game;
 using UnityEngine;
 
 namespace TinyMatter.CardClash.Gameplay {
@@ -8,6 +9,12 @@ public abstract class GestureHandler : MonoBehaviour {
 
         public System.Action<RaycastHit, GestureRecognizerState> hitHandler;
 
+        protected UnityService unityService;
+
+        private void Awake() {
+            unityService = UnityService.DefaultService();
+        }
+
         public void RequireGestureHandlerToFail(GestureHandler otherHandler) {
             this.GetRecognizer().AddRequiredGestureRecognizerToFail(otherHandler.GetRecognizer());
         }

Gestures/PanGestureHandler.cs

@@ -27,8 +27,8 @@ private void OnDestroy() {
 
         private void PanGesture_StateUpdated(GestureRecognizer gestureRecognizer) {
             //get position in world space of touch
-            Vector3 screenTouchPosition = new Vector3(gestureRecognizer.FocusX, gestureRecognizer.FocusY, 0f);
-            Ray ray = Camera.main.ScreenPointToRay(screenTouchPosition);
+            var screenTouchPosition = new Vector3(gestureRecognizer.FocusX, gestureRecognizer.FocusY, 0f);
+            var ray = unityService.mainCamera.ScreenPointToRay(screenTouchPosition);
 
             RaycastHit hit;
 

Gestures/TapGestureHandler.cs

@@ -36,8 +36,8 @@ private void OnDestroy() {
         }
 
         private void TapGesture_StateUpdated(GestureRecognizer gestureRecognizer) {
-            Vector3 screenTouchPosition = new Vector3(gestureRecognizer.FocusX, gestureRecognizer.FocusY, 0f);
-            Ray ray = Camera.main.ScreenPointToRay(screenTouchPosition);
+            var screenTouchPosition = new Vector3(gestureRecognizer.FocusX, gestureRecognizer.FocusY, 0f);
+            var ray = unityService.mainCamera.ScreenPointToRay(screenTouchPosition);
 
             RaycastHit hit;
 

UnityService.cs

@@ -0,0 +1,27 @@
+using System;
+using RSG;
+using UnityEngine;
+
+namespace TinyMatter.CardClash.Game {
+    public class UnityService {
+        public readonly Camera mainCamera;
+        private PromiseTimer promiseTimer;
+
+        public UnityService(Camera mainCamera) {
+            this.mainCamera = mainCamera;
+            promiseTimer = new PromiseTimer();
+        }
+
+        public static UnityService DefaultService() {
+            return new UnityService(mainCamera: Camera.main);
+        }
+
+        public void Update() {
+            promiseTimer.Update(Time.deltaTime);
+        }
+
+        public IPromise WaitFor(float seconds) {
+            return promiseTimer.WaitFor(seconds);
+        }
+    }
+}