Added pause menu, new F3 debug panel, fogCurve setting

src/frontend/gui/panels.h

@@ -0,0 +1,46 @@
+#ifndef FRONTEND_GUI_PANELS_H_
+#define FRONTEND_GUI_PANELS_H_
+
+#include <glm/glm.hpp>
+#include <vector>
+#include <memory>
+#include "UINode.h"
+
+class Batch2D;
+class Assets;
+
+namespace gui {
+    enum class Orientation { vertical, horizontal };
+
+    class Container : public UINode {
+    protected:
+        std::vector<std::shared_ptr<UINode>> nodes;
+    public:
+        Container(glm::vec2 coord, glm::vec2 size);
+
+        virtual void drawBackground(Batch2D* batch, Assets* assets) {};
+        virtual void draw(Batch2D* batch, Assets* assets);
+        virtual std::shared_ptr<UINode> getAt(glm::vec2 pos, std::shared_ptr<UINode> self) override;
+        virtual void add(std::shared_ptr<UINode> node);
+    };
+
+    class Panel : public Container {
+    protected:
+        Orientation orientation_ = Orientation::vertical;
+        glm::vec4 padding {2.0f};
+        float interval = 2.0f;
+        bool resizing_;
+    public:
+        Panel(glm::vec2 size, glm::vec4 padding=glm::vec4(2.0f), float interval=2.0f, bool resizing=true);
+        virtual ~Panel();
+
+        virtual void drawBackground(Batch2D* batch, Assets* assets) override;
+
+        virtual void orientation(Orientation orientation);
+        Orientation orientation() const;
+
+        virtual void refresh() override;
+        virtual void lock() override;
+    };
+}
+#endif // FRONTEND_GUI_PANELS_H_