Added IDPackLayer.cpp

Author: OmgRod

src/modify/hiimjustin000.integrated_demonlist/IDPackLayer.cpp

@@ -0,0 +1,20 @@
+#include <Geode/Geode.hpp>
+#include "../../SwelvyBG.hpp"
+#include "../../Hooks/Hooker.hpp" 
+class IDPackLayer : public Betterhook::HookBetter { 
+    void init(CCNode* _This) override {
+         if (auto bg = _This->getChildByType<CCSprite>(0)) {
+            bg->setVisible(false);
+        }
+        SwelvyBG* swelvyBG = SwelvyBG::create();
+        swelvyBG->setZOrder(-1);
+        swelvyBG->setID("swelvy-background");
+        _This->addChild(swelvyBG);
+    }
+
+    const char* PutLayer() const override { return "IDPackLayer"; }
+};
+
+
+REGISTER_HookBetter(IDPackLayer);
+