feat(scenes): add guitar-city background to start

Author: remarkablemark

src/scenes/game.ts

@@ -22,7 +22,6 @@ scene(Scene.game, (levelId: string) => {
     sprite(Sprite.background),
     pos(width() / 2, height() / 2),
     anchor('center'),
-    scale(1),
   ]);
 
   const music = play(Sound.music, {

src/scenes/preload.ts

@@ -1,6 +1,8 @@
-import { Direction, Key, Scene, Sound } from '../constants';
+import { Direction, Key, Scene, Sound, Sprite } from '../constants';
 
 scene(Scene.preload, () => {
+  loadSprite(Sprite.background, 'sprites/background/guitar-city.png');
+
   Object.values(Direction).forEach((direction) => {
     loadSprite(direction, `sprites/${direction}.png`);
   });

src/scenes/start.ts

@@ -1,8 +1,14 @@
-import { Scene } from '../constants';
+import { Scene, Sprite } from '../constants';
 import { addButton } from '../gameobjects';
 import { levels } from '../levels';
 
 scene(Scene.start, () => {
+  add([
+    sprite(Sprite.background),
+    pos(width() / 2, height() / 2),
+    anchor('center'),
+  ]);
+
   Object.keys(levels).forEach((levelId, index) => {
     addButton(levels[levelId].title, vec2(center().x, 100 * (index + 1)), () =>
       go(Scene.load, levelId),