finalised main menu

game/Assets/Prefabs/Environment.prefab.meta

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game/Assets/Scripts/UI/MainMenuUI.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class MainMenuUI : MonoBehaviour
+{
+    [Header( "Timing" )]
+    [SerializeField]
+    private float _fadeTime;
+    
+    [Header("References")]
+    [SerializeField]
+    private SceneLoader _loader;
+    
+    [SerializeField]
+    private CanvasGroup _navigation;
+
+    private CanvasGroup _current;
+
+    private void Awake()
+    {
+        ShowMenu( _navigation );
+    }
+
+    public void StartGame()
+    {
+        _loader.LoadScene( SceneType.Gameplay );
+    }
+
+    public void ShowMenu(CanvasGroup newMenu)
+    {
+        if ( newMenu == _current )
+            return;
+
+        StartCoroutine( FadeMenu( _current, newMenu ) );
+        _current = newMenu;
+    }
+
+    private IEnumerator FadeMenu( CanvasGroup from, CanvasGroup to )
+    {
+        float a = 1.0f;
+
+        if ( from != null )
+        {
+            from.interactable = false;
+            
+            while ( a > 0.0f )
+            {
+                from.alpha = a;
+                a -= Time.unscaledDeltaTime / _fadeTime;
+                yield return null;
+            }
+
+            from.gameObject.SetActive(false);
+            from.interactable = true;
+            from.alpha = 1.0f;
+        }
+        
+        to.gameObject.SetActive(true);
+        to.alpha = 0.0f;
+        to.interactable = false;
+        
+        a = 0;
+        while ( a < 1.0f )
+        {
+            to.alpha = a;
+            a += Time.unscaledDeltaTime / _fadeTime;
+            yield return null;
+        }
+
+        to.alpha = 1.0f;
+        to.interactable = true;
+    }
+}

game/Assets/Scripts/UI/MainMenuUI.cs.meta

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game/Assets/UI/Button.controller

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     m_DefaultInt: 0
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-    m_Controller: {fileID: 0}
+    m_Controller: {fileID: 9100000}
   - m_Name: Highlighted
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     m_DefaultFloat: 0
     m_DefaultInt: 0
     m_DefaultBool: 0
-    m_Controller: {fileID: 0}
+    m_Controller: {fileID: 9100000}
   - m_Name: Pressed
     m_Type: 9
     m_DefaultFloat: 0
     m_DefaultInt: 0
     m_DefaultBool: 0
-    m_Controller: {fileID: 0}
+    m_Controller: {fileID: 9100000}
   - m_Name: Selected
     m_Type: 9
     m_DefaultFloat: 0
     m_DefaultInt: 0
     m_DefaultBool: 0
-    m_Controller: {fileID: 0}
+    m_Controller: {fileID: 9100000}
   - m_Name: Disabled
     m_Type: 9
     m_DefaultFloat: 0
     m_DefaultInt: 0
     m_DefaultBool: 0
-    m_Controller: {fileID: 0}
+    m_Controller: {fileID: 9100000}
   m_AnimatorLayers:
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     m_Name: Base Layer
@@ -720,7 +720,35 @@ AnimationClip:
   m_EulerCurves: []
   m_PositionCurves: []
   m_ScaleCurves: []
-  m_FloatCurves: []
+  m_FloatCurves:
+  - curve:
+      serializedVersion: 2
+      m_Curve:
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+        time: 0
+        value: 0
+        inSlope: 0
+        outSlope: 0
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+        outWeight: 0.33333334
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+        inWeight: 0.33333334
+        outWeight: 0.33333334
+      m_PreInfinity: 2
+      m_PostInfinity: 2
+      m_RotationOrder: 4
+    attribute: m_Alpha
+    path: Squish
+    classID: 225
+    script: {fileID: 0}
   m_PPtrCurves: []
   m_SampleRate: 60
   m_WrapMode: 0
@@ -728,14 +756,21 @@ AnimationClip:
     m_Center: {x: 0, y: 0, z: 0}
     m_Extent: {x: 0, y: 0, z: 0}
   m_ClipBindingConstant:
-    genericBindings: []
+    genericBindings:
+    - serializedVersion: 2
+      path: 2750837211
+      attribute: 1574349066
+      script: {fileID: 0}
+      typeID: 225
+      customType: 0
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     pptrCurveMapping: []
   m_AnimationClipSettings:
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     m_AdditiveReferencePoseClip: {fileID: 0}
     m_AdditiveReferencePoseTime: 0
     m_StartTime: 0
-    m_StopTime: 1
+    m_StopTime: 0.083333336
     m_OrientationOffsetY: 0
     m_Level: 0
     m_CycleOffset: 0
@@ -750,7 +785,35 @@ AnimationClip:
     m_KeepOriginalPositionXZ: 0
     m_HeightFromFeet: 0
     m_Mirror: 0
-  m_EditorCurves: []
+  m_EditorCurves:
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+    path: Squish
+    classID: 225
+    script: {fileID: 0}
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   m_HasGenericRootTransform: 0
   m_HasMotionFloatCurves: 0