5 files changed, 34 insertions, 5 deletions
diff --git a/src/crepe/system/RenderSystem.cpp b/src/crepe/system/RenderSystem.cpp
index 3e6360c..0d37808 100644
--- a/src/crepe/system/RenderSystem.cpp
+++ b/src/crepe/system/RenderSystem.cpp
@@ -5,7 +5,7 @@
 #include "../api/Sprite.h"
 #include "../api/Transform.h"
 #include "../facade/SDLContext.h"
-#include "../util/log.h"
+#include "../util/Log.h"
 
 #include "RenderSystem.h"
 
diff --git a/src/crepe/system/ScriptSystem.cpp b/src/crepe/system/ScriptSystem.cpp
index 644e96e..7b22533 100644
--- a/src/crepe/system/ScriptSystem.cpp
+++ b/src/crepe/system/ScriptSystem.cpp
@@ -5,7 +5,6 @@
 #include "../ComponentManager.h"
 #include "../api/BehaviorScript.h"
 #include "../api/Script.h"
-#include "../util/log.h"
 
 #include "ScriptSystem.h"
 
@@ -28,7 +27,7 @@ void ScriptSystem::update() {
 	}
 }
 
-forward_list<reference_wrapper<Script>> ScriptSystem::get_scripts() {
+forward_list<reference_wrapper<Script>> ScriptSystem::get_scripts() const {
 	forward_list<reference_wrapper<Script>> scripts = {};
 	ComponentManager & mgr = this->component_manager;
 	vector<reference_wrapper<BehaviorScript>> behavior_scripts
@@ -44,3 +43,4 @@ forward_list<reference_wrapper<Script>> ScriptSystem::get_scripts() {
 
 	return scripts;
 }
+
diff --git a/src/crepe/system/ScriptSystem.h b/src/crepe/system/ScriptSystem.h
index b0b4185..deb89cb 100644
--- a/src/crepe/system/ScriptSystem.h
+++ b/src/crepe/system/ScriptSystem.h
@@ -8,13 +8,32 @@ namespace crepe {
 
 class Script;
 
+/**
+ * \brief Script system
+ * 
+ * The script system is responsible for all \c BehaviorScript components, and
+ * calls the methods on classes derived from \c Script.
+ */
 class ScriptSystem : public System {
 public:
 	using System::System;
+	/**
+	 * \brief Call Script::update() on all active \c BehaviorScript instances
+	 *
+	 * This routine updates all scripts sequentially using the Script::update()
+	 * method. It also calls Script::init() if this has not been done before on
+	 * the \c BehaviorScript instance.
+	 */
 	void update() override;
 
 private:
-	std::forward_list<std::reference_wrapper<Script>> get_scripts();
+	/**
+	 * \brief Aggregate all active \c BehaviorScript components and return a list
+	 * of references to their \c Script instances (utility)
+	 *
+	 * \returns List of active \c Script instances
+	 */
+	std::forward_list<std::reference_wrapper<Script>> get_scripts() const;
 };
 
 } // namespace crepe
diff --git a/src/crepe/system/System.cpp b/src/crepe/system/System.cpp
index 201b9ad..937a423 100644
--- a/src/crepe/system/System.cpp
+++ b/src/crepe/system/System.cpp
@@ -1,4 +1,4 @@
-#include "../util/log.h"
+#include "../util/Log.h"
 
 #include "System.h"
 
diff --git a/src/crepe/system/System.h b/src/crepe/system/System.h
index 7970e72..28ea20e 100644
--- a/src/crepe/system/System.h
+++ b/src/crepe/system/System.h
@@ -4,8 +4,18 @@ namespace crepe {
 
 class ComponentManager;
 
+/**
+ * \brief Base ECS system class
+ *
+ * This class is used as the base for all system classes. Classes derived from
+ * System must implement the System::update() method and copy Script::Script
+ * with the `using`-syntax.
+ */
 class System {
 public:
+	/**
+	 * \brief Process all components this system is responsible for.
+	 */
 	virtual void update() = 0;
 
 public: