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Hud.h

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+#ifndef HUD_CLASS
+#define HUD_CLASS
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include <glm/glm.hpp>
+
+#include "StatBar.h"
+
+class Font;
+class Character;
+class Box;
+class TextBox;
+class Texture;
+class Camera;
+
+// The player's health in the top left corner, the moves it has along the bottom, and everyone else's health
+// over their heads
+class Hud {
+public:
+    // Makes its GUI, and GUI draws in the order it was made, so make this before whatever should cover it.
+    // The health bars are drawn from healthFill and healthFrame, plain bars if they're nullptr.
+    Hud(Font* font, Texture* healthFill = nullptr, Texture* healthFrame = nullptr);
+
+    // Once a frame, dt in real time. nullptr hides it all.
+    // With everyone and the camera, the rest of them get bars over their heads.
+    // With the cursor, in window pixels, hovering over a move pops up what it does.
+    void Update(float dt, const Character* character,
+        const std::vector<Character*>* everyone = nullptr, Camera* camera = nullptr, const glm::vec2* cursor = nullptr);
+
+private:
+    // One move in the list: the key it's on, its name, and its cooldown covering it from the top
+    struct MoveSlot {
+        Box* background = nullptr;
+        Box* cooldown = nullptr;
+        TextBox* key = nullptr;
+        TextBox* name = nullptr;
+        float flash = 0.0f;   // 1 just as it comes off cooldown, fades to 0
+        bool wasReady = true;
+    };
+
+    // A bar over someone's head, kept on whoever it showed last so a new face doesn't show a loss
+    struct Overhead {
+        std::unique_ptr<StatBar> bar;
+        const Character* shown = nullptr;
+        float opacity = 0.0f;
+    };
+
+    void UpdateMoves(float dt, const Character* character, const glm::vec2* cursor);
+    void UpdateOverheads(float dt, const Character* player, const std::vector<Character*>* everyone, Camera* camera);
+
+    StatBar health;
+    std::vector<MoveSlot> moves;
+    std::vector<Overhead> overheads;
+
+    // What the move under the cursor does
+    Font* font = nullptr;
+    Box* tooltip = nullptr;
+    TextBox* tooltipTitle = nullptr;
+    TextBox* tooltipText = nullptr;
+
+    const Character* shown = nullptr;
+    float opacity = 0.0f;
+};
+
+#endif