Initial commit: wowee native WoW 3.3.5a client

include/rendering/celestial.hpp

@@ -0,0 +1,101 @@
+#pragma once
+
+#include <memory>
+#include <glm/glm.hpp>
+
+namespace wowee {
+namespace rendering {
+
+class Shader;
+class Camera;
+
+/**
+ * Celestial body renderer
+ *
+ * Renders sun and moon that move across the sky based on time of day.
+ * Sun rises at dawn, sets at dusk. Moon is visible at night.
+ */
+class Celestial {
+public:
+    Celestial();
+    ~Celestial();
+
+    bool initialize();
+    void shutdown();
+
+    /**
+     * Render celestial bodies (sun and moon)
+     * @param camera Camera for view matrix
+     * @param timeOfDay Time of day in hours (0-24)
+     */
+    void render(const Camera& camera, float timeOfDay);
+
+    /**
+     * Enable/disable celestial rendering
+     */
+    void setEnabled(bool enabled) { renderingEnabled = enabled; }
+    bool isEnabled() const { return renderingEnabled; }
+
+    /**
+     * Update celestial bodies (for moon phase cycling)
+     */
+    void update(float deltaTime);
+
+    /**
+     * Set moon phase (0.0 = new moon, 0.25 = first quarter, 0.5 = full, 0.75 = last quarter, 1.0 = new)
+     */
+    void setMoonPhase(float phase);
+    float getMoonPhase() const { return moonPhase; }
+
+    /**
+     * Enable/disable automatic moon phase cycling
+     */
+    void setMoonPhaseCycling(bool enabled) { moonPhaseCycling = enabled; }
+    bool isMoonPhaseCycling() const { return moonPhaseCycling; }
+
+    /**
+     * Get sun position in world space
+     */
+    glm::vec3 getSunPosition(float timeOfDay) const;
+
+    /**
+     * Get moon position in world space
+     */
+    glm::vec3 getMoonPosition(float timeOfDay) const;
+
+    /**
+     * Get sun color (changes with time of day)
+     */
+    glm::vec3 getSunColor(float timeOfDay) const;
+
+    /**
+     * Get sun intensity (0-1, fades at dawn/dusk)
+     */
+    float getSunIntensity(float timeOfDay) const;
+
+private:
+    void createCelestialQuad();
+    void destroyCelestialQuad();
+
+    void renderSun(const Camera& camera, float timeOfDay);
+    void renderMoon(const Camera& camera, float timeOfDay);
+
+    float calculateCelestialAngle(float timeOfDay, float riseTime, float setTime) const;
+
+    std::unique_ptr<Shader> celestialShader;
+
+    uint32_t vao = 0;
+    uint32_t vbo = 0;
+    uint32_t ebo = 0;
+
+    bool renderingEnabled = true;
+
+    // Moon phase system
+    float moonPhase = 0.5f;  // 0.0-1.0 (0=new, 0.5=full)
+    bool moonPhaseCycling = true;
+    float moonPhaseTimer = 0.0f;
+    static constexpr float MOON_CYCLE_DURATION = 240.0f;  // 4 minutes for full cycle
+};
+
+} // namespace rendering
+} // namespace wowee