init

Author: Deepscorn

.gitignore

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+# http://unity3d.com/learn/tutorials/modules/beginner/architecture/folders-in-version-control
+
+# Unity generated
+Library/
+Temp/
+Obj/
+Build/
+Builds/
+Assets/AssetStoreTools*
+AssetBundleServerURL.bytes
+AssetBundleServerURL.bytes.meta
+AssetBundles/
+
+# Autogenerated VS/MD solution and project files
+ExportedObj/
+*.csproj
+*.unityproj
+*.sln
+*.suo
+*.tmp
+*.user
+*.userprefs
+*.pidb
+*.booproj
+*.svd
+
+
+# Unity3D Generated File On Crash Reports
+sysinfo.txt
+
+# Builds
+*.apk
+*.unitypackage
+
+# JetBrains Rider C# IDE
+.idea/
+*.iml
+
+# OS generated
+.DS_Store
+.DS_Store?
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db

Components/AbstractScreen.cs

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+// Copyright 2014 Tokarev Mikhail (also known as Deepscorn)
+// http://www.apache.org/licenses/LICENSE-2.0
+using UnityEngine;
+using System.Collections;
+
+namespace Assets.Sources.Scripts.Basic
+{
+    // it's MonoBehaviour (not just interface) to be able to drag-n-drop in editor
+    public abstract class AbstractScreen : MonoBehaviour
+    {
+        // set whether screen must start open / close transition
+        public abstract void SetOpen(bool open);
+
+        public abstract IEnumerator WaitForClosing();
+
+        public abstract bool IsOpeningOrOpened();
+    }
+}

Components/AbstractScreen.cs.meta

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+// Copyright 2014 Tokarev Mikhail (also known as Deepscorn)
+// http://www.apache.org/licenses/LICENSE-2.0
+using UnityEngine;
+using System.Collections;
+using Assets.Sources.Util.Log;
+
+namespace Assets.Sources.Scripts.Basic
+{
+    // usecase: screen have one keyframe animation.
+    // Inheritance tips: More animations with one keyframe may be launched/stopped in overriden SetOpen()
+    // But do not forget to include them in overriden IsAnimating() to be sure
+    // your animations wount be in transition when screen will be deactivated
+    public class BlendAnimatorBasedScreen : AbstractScreen
+    {
+        public string AnimatorOpenBoolParamName = "Open";
+        public string AnimatorStateOpenName = "Open";
+        public string AnimatorStateClosedName = "Closed";
+
+        private int animatorOpenBoolParamNameHash;
+        private Animator animator;
+
+        private Animator Animator
+        {
+            get
+            {
+                if (animator == null)
+                {
+                    animator = GetComponent<Animator>();
+                }
+                return animator;
+            }
+        }
+
+        private int AnimatorOpenBoolParamNameHash
+        {
+            get
+            {
+                if (animatorOpenBoolParamNameHash == 0)
+                {
+                    animatorOpenBoolParamNameHash = Animator.StringToHash(AnimatorOpenBoolParamName);
+                }
+                return animatorOpenBoolParamNameHash;
+            }
+        }
+
+        // set whether screen must start open / close transition
+        public override void SetOpen(bool open)
+        {
+            Animator.SetBool(AnimatorOpenBoolParamNameHash, open);
+        }
+
+        public override IEnumerator WaitForClosing()
+        {
+            var closedStateReached = false;
+            var wantToClose = true;
+            while (!closedStateReached && wantToClose)
+            {
+                if (!IsAnimating())
+                {
+                    closedStateReached = Animator.GetCurrentAnimatorStateInfo(0).IsName(AnimatorStateClosedName);
+                }
+                wantToClose = !IsOpeningOrOpened();
+
+                yield return new WaitForEndOfFrame();
+            }
+        }
+
+        public override bool IsOpeningOrOpened()
+        {
+            return Animator.GetBool(AnimatorOpenBoolParamNameHash);
+        }
+
+        // any additional animation on which we must wait before diactivating screen
+        // must be specified in subclasses
+        protected virtual bool IsAnimating()
+        {
+            return Animator.IsInTransition(0);
+        }
+    }
+}