init project

api/src/main/java/com/alttd/cometskyblock/CometSkyBlockAPI.java

@@ -0,0 +1,22 @@
+package com.alttd.cometskyblock;
+
+import org.jetbrains.annotations.ApiStatus;
+
+public interface CometSkyBlockAPI {
+
+    static CometSkyBlockAPI get() {
+        return Provider.instance;
+    }
+
+    final class Provider {
+        private static CometSkyBlockAPI instance = null;
+
+        @ApiStatus.Internal
+        static void register(CometSkyBlockAPI instance) {
+            if (Provider.instance != null)
+                throw new UnsupportedOperationException("Cannot redefine singleton");
+
+            Provider.instance = instance;
+        }
+    }
+}