Initial commit: wowee native WoW 3.3.5a client

include/rendering/skybox.hpp

@@ -0,0 +1,83 @@
+#pragma once
+
+#include <memory>
+#include <glm/glm.hpp>
+
+namespace wowee {
+namespace rendering {
+
+class Shader;
+class Camera;
+
+/**
+ * Skybox renderer
+ *
+ * Renders an atmospheric sky dome with gradient colors.
+ * The sky uses a dome/sphere approach for realistic appearance.
+ */
+class Skybox {
+public:
+    Skybox();
+    ~Skybox();
+
+    bool initialize();
+    void shutdown();
+
+    /**
+     * Render the skybox
+     * @param camera Camera for view matrix (position is ignored for skybox)
+     * @param timeOfDay Time of day in hours (0-24), affects sky color
+     */
+    void render(const Camera& camera, float timeOfDay = 12.0f);
+
+    /**
+     * Enable/disable skybox rendering
+     */
+    void setEnabled(bool enabled) { renderingEnabled = enabled; }
+    bool isEnabled() const { return renderingEnabled; }
+
+    /**
+     * Set time of day (0-24 hours)
+     * 0 = midnight, 6 = dawn, 12 = noon, 18 = dusk, 24 = midnight
+     */
+    void setTimeOfDay(float time);
+    float getTimeOfDay() const { return timeOfDay; }
+
+    /**
+     * Enable/disable time progression
+     */
+    void setTimeProgression(bool enabled) { timeProgressionEnabled = enabled; }
+    bool isTimeProgressionEnabled() const { return timeProgressionEnabled; }
+
+    /**
+     * Update time progression
+     */
+    void update(float deltaTime);
+
+    /**
+     * Get horizon color for fog (public for fog system)
+     */
+    glm::vec3 getHorizonColor(float time) const;
+
+private:
+    void createSkyDome();
+    void destroySkyDome();
+
+    glm::vec3 getSkyColor(float altitude, float time) const;
+    glm::vec3 getZenithColor(float time) const;
+
+    std::unique_ptr<Shader> skyShader;
+
+    uint32_t vao = 0;
+    uint32_t vbo = 0;
+    uint32_t ebo = 0;
+    int indexCount = 0;
+
+    float timeOfDay = 12.0f;  // Default: noon
+    float timeSpeed = 1.0f;   // 1.0 = 1 hour per real second
+    bool timeProgressionEnabled = false;
+    bool renderingEnabled = true;
+};
+
+} // namespace rendering
+} // namespace wowee