rename engine to src

src/node_combobox.h

@@ -0,0 +1,16 @@
+#pragma once
+#include "node_button.h"
+
+class NodeComboBox : public NodeButton
+{
+public:
+    std::function<void(Node* target, int index)> on_select;
+    std::vector<std::string> m_data;
+    std::vector<std::string> m_items;
+    int m_current_index = 0;
+    int m_selected_child_index = 0; 
+    virtual Node* clone_instantiate() const override;
+    virtual void clone_copy(Node* dest) const override;
+    virtual void loaded() override;
+    virtual void parse_attributes(kAttribute ka, const tinyxml2::XMLAttribute* attr) override;
+};