From e6e29440563e33bb67e0ad51f9fb6c5c2c3fe809 Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <elizabeth.hunt@simponic.xyz>
Date: Thu, 7 Mar 2024 20:45:47 -0700
Subject: level one (applications prototype finished!)

---
 src/engine/config/assets.ts | 43 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

(limited to 'src/engine/config/assets.ts')

diff --git a/src/engine/config/assets.ts b/src/engine/config/assets.ts
index 5ce13e8..fbfab2f 100644
--- a/src/engine/config/assets.ts
+++ b/src/engine/config/assets.ts
@@ -1,4 +1,5 @@
 import { type SpriteSpec, SPRITE_SPECS } from ".";
+import { SOUND_SPECS, SoundSpec } from "./sounds";
 
 export const FONT = new FontFace("scientifica", "url(/fonts/scientifica.ttf)");
 FONT.load().then((font) => {
@@ -6,6 +7,7 @@ FONT.load().then((font) => {
 });
 
 export const IMAGES = new Map<string, HTMLImageElement>();
+export const SOUNDS = new Map<string, HTMLAudioElement>();
 
 export const loadSpritesIntoImageElements = (
   spriteSpecs: Partial<SpriteSpec>[],
@@ -35,6 +37,45 @@ export const loadSpritesIntoImageElements = (
   return spritePromises;
 };
 
+export const loadSoundsIntoAudioElements = (
+  soundSpecs: SoundSpec[],
+): Promise<void>[] => {
+  const soundPromises: Promise<void>[] = [];
+
+  for (const soundSpec of soundSpecs) {
+    if (soundSpec.url) {
+      const promise = fetch(soundSpec.url)
+        .then((response) => response.blob())
+        .then((blob) => {
+          const audio = new Audio();
+          audio.src = URL.createObjectURL(blob);
+          audio.volume = soundSpec.volume ?? 1;
+
+          SOUNDS.set(soundSpec.name, audio);
+          return new Promise<void>((resolve, rej) => {
+            audio.oncanplaythrough = () => {
+              resolve();
+            };
+
+            audio.onerror = (e) => {
+              console.error(soundSpec);
+              rej(e);
+            };
+          });
+        });
+      soundPromises.push(promise);
+    }
+
+    if (soundSpec.states) {
+      soundPromises.push(
+        ...loadSoundsIntoAudioElements(Array.from(soundSpec.states.values())),
+      );
+    }
+  }
+
+  return soundPromises;
+};
+
 export const loadAssets = () =>
   Promise.all([
     ...loadSpritesIntoImageElements(
@@ -43,5 +84,5 @@ export const loadAssets = () =>
       ),
     ),
     FONT.load(),
-    // TODO: Sound
+    ...loadSoundsIntoAudioElements(Array.from(SOUND_SPECS.values())),
   ]);
-- 
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