Add randomized swallow sounds

stories/mass-vore.js

@@ -1,8 +1,9 @@
 (() => {
     function devour(state, count) {
         state.player.stats.stomach.value += count;
-        playSfx("sfx/swallows/swallow.ogg")
+        playRandomSfx("swallow");
     }
+
     function digest(state, count) {
         if (count === undefined) {
             count = state.player.stats.stomach.value / 200;
@@ -10,6 +11,24 @@
         state.player.stats.stomach.value -= count;
         state.player.stats.gas.value += count;
     }
+
+    sfxGroups = {
+        "swallow": [
+            "sfx/swallows/swallow-1.ogg",
+            "sfx/swallows/swallow-2.ogg",
+            "sfx/swallows/swallow-3.ogg",
+            "sfx/swallows/swallow-4.ogg",
+            "sfx/swallows/swallow-5.ogg",
+            "sfx/swallows/swallow-6.ogg",
+            "sfx/swallows/swallow-7.ogg",
+        ]
+    }
+
+    function playRandomSfx(category) {
+        const choice = Math.floor(Math.random() * sfxGroups[category].length);
+        playSfx(sfxGroups[category][choice]);
+    }
+
     stories.push({
         id: "mass-vore",
         name: "Mass Vore",
@@ -20,7 +39,13 @@
         ],
         sounds: [
             "sfx/belches/belch.ogg",
-            "sfx/swallows/swallow.ogg",
+            "sfx/swallows/swallow-1.ogg",
+            "sfx/swallows/swallow-2.ogg",
+            "sfx/swallows/swallow-3.ogg",
+            "sfx/swallows/swallow-4.ogg",
+            "sfx/swallows/swallow-5.ogg",
+            "sfx/swallows/swallow-6.ogg",
+            "sfx/swallows/swallow-7.ogg",
             "loop/stomach/stomach.ogg"
         ],
         preload: [