Set background in story

Assets/Resources/BGBattle/BGNightSky.jpg.meta

@@ -0,0 +1,92 @@
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Assets/Story/Scenes/Scene_Chapter1_Cave.cs

@@ -5,6 +5,8 @@ using UnityEngine;
 public class Scene_Chapter1_Cave: StoryScene
 {
     public override IEnumerator Play(StoryDisplay storyDisplay) {
+        storyDisplay.SetBackground("BGCave");
+
         yield return new WaitForSeconds(1f);
         yield return storyDisplay.DisplayText("OMG monsters!", DialogPosition.Right);
         yield return new WaitForSeconds(1f);

Assets/Story/Scenes/Scene_Prologue_First.cs

@@ -4,6 +4,8 @@ using UnityEngine;
 
 public class Scene_Prologue_First: StoryScene {
     public override IEnumerator Play(StoryDisplay storyDisplay) {
+        storyDisplay.SetBackground("BGNightSky");
+
         yield return new WaitForSeconds(1f);
         yield return storyDisplay.DisplayText("Are you going out again?", DialogPosition.Left);
         yield return new WaitForSeconds(1f);
@@ -21,7 +23,7 @@ public class Scene_Prologue_First: StoryScene {
             DialogPosition.Left);
         yield return new WaitForSeconds(2f);
         yield return storyDisplay.DisplayText(
-            "Finite in time, yes. But infinite in possibilities.",
+            "Finite in time, yes. But infinite in possibilities...",
             DialogPosition.Right);
         yield return new WaitForSeconds(2f);
 

Assets/Story/StoryDisplay.cs

@@ -3,7 +3,6 @@ using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
-
 public enum DialogPosition {
     Left,
     Right,
@@ -13,6 +12,7 @@ public class StoryDisplay : MonoBehaviour
 {
     public Canvas uiCanvas;
     public StoryBox storyBox;
+    public Image background;
     private StoryBox storyBoxLeft;
 
     void Awake() {
@@ -35,4 +35,9 @@ public class StoryDisplay : MonoBehaviour
             yield return this.storyBox.Display(message);
         }
     }
+
+    public void SetBackground(string fileName) {
+        Sprite sprite = Resources.Load<Sprite>("BGBattle/" + fileName);
+        this.background.sprite = sprite;
+    }
 }