Fix script for generating icons

resources/tools/update-icons.js

 const imgDir = "./generator/img";
 const customIconDir = "./resources/custom-icons";
 const cssPath = "./generator/css/icons.css";
+const jsPath = "./generator/js/icons.js";
 //const processIconsCmd = "mogrify -background white -alpha shape *.png";
 const processIconsCmd = `mogrify -alpha copy -channel-fx "red=100%, blue=100%, green=100%" *.png`
 
     });
 }
 
+// ----------------------------------------------------------------------------
+// Generate JS
+// ----------------------------------------------------------------------------
+function generateJS(src, dest) {
+    console.log("Generating JS...");
+    return new Promise((resolve, reject) => {
+        fs.readdir(src, (err, files) => {
+            if (err) {
+                reject(err);
+            }
+            else {
+                const content = "var icon_names = [\n" + files
+                    .map(name => `    "${name.replace(".png", "")}"`)
+                    .join(",\n") +
+`
+];
+
+var class_icon_names = [
+    "class-barbarian",
+    "class-bard",
+    "class-cleric",
+    "class-druid",
+    "class-fighter",
+    "class-monk",
+    "class-paladin",
+    "class-ranger",
+    "class-rogue",
+    "class-sorcerer",
+    "class-warlock",
+    "class-wizard"
+];
+
+icon_names = icon_names.concat(class_icon_names);
+`;
+                fs.writeFile(dest, content, err => {
+                    if (err) {
+                        reject(err);
+                    }
+                    else {
+                        resolve();
+                    }
+                });
+            }
+        });
+    });
+}
+
 // ----------------------------------------------------------------------------
 // Copy
 // ----------------------------------------------------------------------------
 .then(() => copyAll(customIconDir, imgDir))
 .then(() => processAll(imgDir))
 .then(() => generateCSS(imgDir, cssPath))
+.then(() => generateJS(imgDir, jsPath))
 .then(() => console.log("Done."))
 .catch(err => cosole.log("Error", err));