feat(ebo): rework and add comments

inc/core/ebo.hpp

@@ -1,24 +1,38 @@
 #ifndef EBO_HPP
 #define EBO_HPP
 
-#include <stddef.h>
+#include <cstddef>
 
 #include "glad/glad.h"
+
 namespace core
 {
+// An EBO (Element Buffer Object) is a contiguous block of GPU memory that
+// stores indices for indexed drawing (used with glDrawElements). Unlike VBOs,
+// the EBO binding is stored in the VAO when bound while a VAO is active.
 class EBO
 {
  private:
-  GLuint id;
+  GLuint id;  // OpenGL handle for this buffer
 
  public:
-  EBO();
+  // EBO constructor
+  // Uploads index data into GPU memory (VRAM) using GL_ELEMENT_ARRAY_BUFFER.
+  // The indices are used for indexed rendering with glDrawElements.
+  EBO(const GLuint *indices, std::size_t size);
+
+  // EBO destructor
+  // Deletes the GPU buffer when the EBO object goes out of scope, freeing VRAM.
   ~EBO();
 
-  void setData(const unsigned int* indices, size_t size);
-
+  // Binds this EBO to the GL_ELEMENT_ARRAY_BUFFER target.
+  // If a VAO is bound, this binding is stored in the VAO.
   void bind();
-  void unbind();
+
+  // Unbinds the current GL_ELEMENT_ARRAY_BUFFER by binding 0.
+  // This can be useful to avoid accidental modifications to the EBO.
+  static void unbind();
 };
-};  // namespace core
+}  // namespace core
+
 #endif  // EBO_HPP