feat: shadow integration

include/components/light.h

@@ -1,6 +1,11 @@
 #ifndef COMPONENTS_LIGHT_H_
 #define COMPONENTS_LIGHT_H_
 
-struct light {};
+#include <glm/glm.hpp>
+
+struct light {
+    glm::vec3 color;
+    float intensity;
+};
 
 #endif // COMPONENTS_LIGHT_H_

include/renderer/renderer.h

@@ -12,10 +12,22 @@ public:
     Renderer();
 
     void Render(entt::registry& registry);
+    void GenerateShadowMaps(entt::registry& registry);
 
     void OnWindowResized(int w, int h);
+private:
+    void ApplyLights(entt::registry& registry);
+    void UpdateView(entt::registry& registry);
+    void RenderScene(entt::registry& registry);
+
+    void SwitchShader(Shader* newShader);
 private:
     Shader m_shader;
+    Shader m_depthShader;
+
+    Shader* m_currentShader;
+    unsigned int m_depth_fbo;
+    unsigned int m_depthMap;
 
     glm::mat4 m_model;
     glm::mat4 m_proj;