Initial commit - a working dynamic loader with Express

1 files changed, 56 insertions, 0 deletions

diff --git a/src/bootstrap.js b/src/bootstrap.js
new file mode 100644
index 0000000..39453ff
--- /dev/null
+++ b/src/bootstrap.js
@@ -0,0 +1,56 @@
+game.bootstrap = (function() {
+  const scripts = [
+    { src: ['src/game.js'], id: 'game' },
+  ];
+  const assets = {
+    bigblue: 'assets/image/bigblue.png',
+  };
+
+  const loadScripts = function(onDone) {
+    while (scripts.length) {
+      let script = scripts.shift();
+      require(script.src, () => {
+        onDone(script);
+      });
+    }
+    console.log('scripts loaded');
+  }
+
+  const loadAsset = (source) => {
+    let fileExtension = source.substr(source.lastIndexOf('.') + 1);
+    return fetch(source)
+    .then((r) => r.blob())
+    .then((r) => {
+      let asset;
+      if (["png", "jpg", "jpeg"].includes(fileExtension)) {
+        asset = new Image();
+      } else if (["mp3"].includes(fileExtension)) {
+        asset = new Audio();
+      }
+      asset.src = URL.createObjectURL(r);
+      return asset;
+    })
+  }
+
+  const loadAssets = function() {
+    const promises = [];
+    for (let key in assets) {
+      promises.push(loadAsset(assets[key], (asset) => {
+        game.assets[key] = asset;
+      }, (error) => {
+        console.log(error)
+      }));
+    }
+    return Promise.all(Object.keys(assets).map((key) => {
+      return loadAsset(assets[key]).then((asset) => game.assets[key] = asset);
+    }));
+  }
+
+  game.assets = {};
+  loadAssets().then(() => {
+    loadScripts((script) => {
+      game.initialize();
+    });
+  })
+  
+})();
\ No newline at end of file