fix: Make proper variables and remove unused code from Sprite class

src/kontra.js

@@ -587,24 +587,6 @@ class Sprite extends GameObject {
   } = {}) {
     super.init({ image: t, width: e, height: i, ...s });
   }
-  get animations() {
-    return this._a;
-  }
-  set animations(t) {
-    let e, i;
-    for (e in ((this._a = {}), t))
-      (this._a[e] = t[e].clone()), (i = i || this._a[e]);
-    (this.currentAnimation = i),
-      (this.width = this.width || i.width),
-      (this.height = this.height || i.height);
-  }
-  playAnimation(t) {
-    (this.currentAnimation = this.animations[t]),
-      this.currentAnimation.loop || this.currentAnimation.reset();
-  }
-  advance(t) {
-    super.advance(t), this.currentAnimation && this.currentAnimation.update(t);
-  }
   draw() {
     this.image &&
       this.context.drawImage(

src/sound.js

@@ -3,7 +3,7 @@ import { zzfxM } from './zzfxm';
 
 let myAudioNode = null;
 let isPlaying = false;
-let audioContext = zzfxX;
+let audioContext = window.zzfxX;
 
 export const getIsPlaying = () => {
   return isPlaying;

src/zzfx.js

@@ -1,12 +1,13 @@
 // zzfxV - global volume
-zzfxV = 0.3;
+const zzfxV = 0.3;
 
 // zzfxR - global sample rate
-zzfxR = 44100;
+const zzfxR = 44100;
+window.zzfxR = zzfxR;
 
 // zzfxX - the common audio context
-zzfxX = new (window.AudioContext || webkitAudioContext)();
-sfxContext = new (window.AudioContext || webkitAudioContext)();
+window.zzfxX = new (window.AudioContext || webkitAudioContext)();
+const sfxContext = new (window.AudioContext || webkitAudioContext)();
 // zzfx() - the universal entry point -- returns a AudioBufferSourceNode
 export const zzfx = (...t) => zzfxP(sfxContext, zzfxG(...t));
 
@@ -22,7 +23,7 @@ export const zzfxP = (ctx, ...t) => {
 };
 
 // zzfxG() - the sound generator -- returns an array of sample data
-zzfxG = (
+window.zzfxG = (
   q = 1,
   k = 0.05,
   c = 220,

src/zzfxm.js

@@ -23,7 +23,7 @@ export const zzfxM = (n, f, t, e = 125) => {
     q = 0,
     s = 1,
     v = {},
-    w = ((zzfxR / e) * 60) >> 2;
+    w = ((window.zzfxR / e) * 60) >> 2;
   for (; s; k++)
     (R = [(s = a = d = m = 0)]),
       t.map((e, d) => {
@@ -55,7 +55,7 @@ export const zzfxM = (n, f, t, e = 125) => {
                 v[[c, g]] ||
                 ((l = [...n[c]]),
                 (l[2] *= 2 ** ((g - 12) / 12)),
-                g > 0 ? zzfxG(...l) : [])));
+                g > 0 ? window.zzfxG(...l) : [])));
         }
         m = G;
       });