Specify credentials via -DAPI_NG_APP_ID=value and -DAPI_NG_ENC_KEY=value at build time

source/Prebuild.hx

@@ -9,10 +9,23 @@ class Prebuild
 {
   static inline final BUILD_TIME_FILE:String = '.build_time';
 
+  static final NG_CREDS_PATH:String = './source/funkin/api/newgrounds/NewgroundsCredentials.hx';
+
+  static final NG_CREDS_TEMPLATE:String = "package funkin.api.newgrounds;
+
+class NewgroundsCredentials
+{
+  public static final APP_ID:String = #if API_NG_APP_ID haxe.macro.Compiler.getDefine(\"API_NG_APP_ID\") #else 'INSERT APP ID HERE' #end;
+  public static final ENCRYPTION_KEY:String = #if API_NG_ENC_KEY haxe.macro.Compiler.getDefine(\"API_NG_ENC_KEY\") #else 'INSERT ENCRYPTION KEY HERE' #end;
+}";
+
   static function main():Void
   {
-    saveBuildTime();
     trace('Building...');
+
+    saveBuildTime();
+
+    buildCredsFile();
   }
 
   static function saveBuildTime():Void
@@ -22,4 +35,22 @@ class Prebuild
     fo.writeDouble(now);
     fo.close();
   }
+
+  static function buildCredsFile():Void
+  {
+    #if sys
+    if (sys.FileSystem.exists(NG_CREDS_PATH))
+    {
+      trace('NewgroundsCredentials.hx already exists, skipping.');
+    }
+    else
+    {
+      trace('Creating NewgroundsCredentials.hx...');
+
+      var fileContents:String = NG_CREDS_TEMPLATE;
+
+      sys.io.File.saveContent(NG_CREDS_PATH, fileContents);
+    }
+    #end
+  }
 }

source/funkin/api/newgrounds/NewgroundsClient.hx

@@ -36,14 +36,13 @@ class NewgroundsClient
 
   private function new()
   {
-    if (NewgroundsCredentials.ENCRYPTION_KEY.contains(' '))
-    {
-      trace('[NEWGROUNDS] Encryption key not valid, disabling...');
-      return;
-    }
-
     trace('[NEWGROUNDS] Initializing client...');
 
+    #if FEATURE_NEWGROUNDS_DEBUG
+    trace('[NEWGROUNDS] App ID: ${NewgroundsCredentials.APP_ID}');
+    trace('[NEWGROUNDS] Encryption Key: ${NewgroundsCredentials.ENCRYPTION_KEY}');
+    #end
+
     if (!hasValidCredentials())
     {
       FlxG.log.warn("Tried to initialize Newgrounds client, but credentials are invalid!");