code style

5 files changed, 185 insertions, 13 deletions

diff --git a/src/crepe/system/AnimatorSystem.cpp b/src/crepe/system/AnimatorSystem.cpp
new file mode 100644
index 0000000..052d264
--- /dev/null
+++ b/src/crepe/system/AnimatorSystem.cpp
@@ -0,0 +1,39 @@
+
+
+#include "AnimatorSystem.h"
+#include "ComponentManager.h"
+#include "facade/SDLContext.h"
+#include "util/log.h"
+
+#include "api/Animator.h"
+
+#include <cstdint>
+#include <functional>
+#include <vector>
+
+using namespace crepe;
+
+AnimatorSystem::AnimatorSystem() { dbg_trace(); }
+
+AnimatorSystem::~AnimatorSystem() { dbg_trace(); }
+
+AnimatorSystem & AnimatorSystem::get_instance() {
+	static AnimatorSystem instance;
+	return instance;
+}
+
+void AnimatorSystem::update() {
+	ComponentManager& mgr = ComponentManager::get_instance();
+
+	std::vector<std::reference_wrapper<Animator>> animations = mgr.get_components_by_type<Animator>();
+
+	uint64_t tick = SDLContext::get_instance().get_ticks();
+	for(Animator& a : animations){
+		if (a.active) {
+			a.curr_row = (tick / 100) % a.row;
+			a.animator_rect.x = (a.curr_row * a.animator_rect.w) + a.curr_col;
+			a.spritesheet.sprite_rect = a.animator_rect;
+		}
+	}
+}
+
diff --git a/src/crepe/system/AnimatorSystem.h b/src/crepe/system/AnimatorSystem.h
new file mode 100644
index 0000000..553b456
--- /dev/null
+++ b/src/crepe/system/AnimatorSystem.h
@@ -0,0 +1,53 @@
+#pragma once
+
+#include "System.h"
+
+namespace crepe {
+
+/**
+ * \brief The AnimatorSystem is responsible for managing and updating all Animator components.
+ *
+ * This system is responsible for controlling the behavior of the animations for all entities
+ * that have the Animator component attached. It updates the animations by controlling their
+ * frame changes, looping behavior, and overall animation state.
+ */
+class AnimatorSystem : public System {
+
+public:
+	/**
+	 * \brief Retrieves the singleton instance of the AnimatorSystem.
+	 *
+	 * \return A reference to the single instance of the AnimatorSystem.
+	 *
+	 * This method ensures that there is only one instance of the AnimatorSystem, following the
+	 * singleton design pattern. It can be used to access the system globally.
+	 */
+	static AnimatorSystem & get_instance();
+
+	/**
+	 * \brief Updates the Animator components.
+	 *
+	 * This method is called periodically (likely every frame) to update the state of all
+	 * Animator components, moving the animations forward and managing their behavior (e.g., looping).
+	 */
+	void update() override;
+
+private:
+	/**
+	 * \brief Private constructor for the AnimatorSystem.
+	 *
+	 * The constructor is private to enforce the singleton pattern, ensuring that only
+	 * one instance of this system can exist.
+	 */
+	AnimatorSystem();
+
+	/**
+	 * \brief Private destructor for the AnimatorSystem.
+	 *
+	 * The destructor cleans up any resources used by the AnimatorSystem. It is private
+	 * to maintain the singleton pattern and prevent direct deletion.
+	 */
+	~AnimatorSystem();
+};
+
+} // namespace crepe
diff --git a/src/crepe/system/CMakeLists.txt b/src/crepe/system/CMakeLists.txt
index ff6f66f..4c18b87 100644
--- a/src/crepe/system/CMakeLists.txt
+++ b/src/crepe/system/CMakeLists.txt
@@ -4,6 +4,7 @@ target_sources(crepe PUBLIC
 	PhysicsSystem.cpp
 	CollisionSystem.cpp
 	RenderSystem.cpp
+	AnimatorSystem.cpp
 )
 
 target_sources(crepe PUBLIC FILE_SET HEADERS FILES
@@ -12,4 +13,5 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
 	PhysicsSystem.h
 	CollisionSystem.h
 	RenderSystem.h
+	AnimatorSystem.h
 )
diff --git a/src/crepe/system/RenderSystem.cpp b/src/crepe/system/RenderSystem.cpp
index 5a07cc2..149af68 100644
--- a/src/crepe/system/RenderSystem.cpp
+++ b/src/crepe/system/RenderSystem.cpp
@@ -20,7 +20,23 @@ RenderSystem & RenderSystem::get_instance() {
 	return instance;
 }
 
-void RenderSystem::update() {
+void RenderSystem::clear_screen() { SDLContext::get_instance().clear_screen(); }
+
+void RenderSystem::present_screen() {
+	SDLContext::get_instance().present_screen();
+}
+void RenderSystem::update_camera() {
+	ComponentManager & mgr = ComponentManager::get_instance();
+
+	std::vector<std::reference_wrapper<Camera>> cameras
+		= mgr.get_components_by_type<Camera>();
+
+	for (Camera & cam : cameras) {
+		SDLContext::get_instance().camera(cam);
+		this->curr_cam = &cam;
+	}
+}
+void RenderSystem::render_sprites() {
 
 	ComponentManager & mgr = ComponentManager::get_instance();
 
@@ -28,14 +44,15 @@ void RenderSystem::update() {
 		= mgr.get_components_by_type<Sprite>();
 
 	SDLContext & render = SDLContext::get_instance();
-	render.clear_screen();
-
 	for (const Sprite & sprite : sprites) {
-		std::vector<std::reference_wrapper<Transform>> transforms
-			= mgr.get_components_by_id<Transform>(sprite.game_object_id);
-		for (const Transform & transform : transforms) {
-			render.draw(sprite, transform);
-		}
+		auto transforms = mgr.get_components_by_id<Transform>(sprite.game_object_id);
+		render.draw(sprite, transforms[0] , *curr_cam);
 	}
-	render.present_screen();
+}
+
+void RenderSystem::update() {
+	this->clear_screen();
+	this->update_camera();
+	this->render_sprites();
+	this->present_screen();
 }
diff --git a/src/crepe/system/RenderSystem.h b/src/crepe/system/RenderSystem.h
index 4b910a4..684776b 100644
--- a/src/crepe/system/RenderSystem.h
+++ b/src/crepe/system/RenderSystem.h
@@ -1,17 +1,78 @@
 #pragma once
 
 #include "System.h"
+#include "api/Camera.h"
 
 namespace crepe {
 
+/**
+ * \class RenderSystem
+ * \brief Manages rendering operations for all game objects.
+ *
+ * RenderSystem is responsible for rendering sprites, clearing and presenting the screen, 
+ * and managing the active camera. It functions as a singleton, providing centralized 
+ * rendering services for the application.
+ */
 class RenderSystem : public System {
 
 public:
-	static RenderSystem & get_instance();
-	void update();
+    /**
+     * \brief Gets the singleton instance of RenderSystem.
+     * \return Reference to the RenderSystem instance.
+     */
+    static RenderSystem & get_instance();
+
+    /**
+     * \brief Updates the RenderSystem for the current frame.
+     * This method is called to perform all rendering operations for the current game frame.
+     */
+    void update() override;
+
+private:
+    /**
+     * \brief Constructs a RenderSystem instance.
+     * Private constructor to enforce singleton pattern.
+     */
+    RenderSystem();
+
+    /**
+     * \brief Destroys the RenderSystem instance.
+     */
+    ~RenderSystem();
+
+    /**
+     * \brief Clears the screen in preparation for rendering.
+     */
+    void clear_screen();
+
+    /**
+     * \brief Presents the rendered frame to the display.
+     */
+    void present_screen();
+
+    /**
+     * \brief Updates the active camera used for rendering.
+     */
+    void update_camera();
+
+    /**
+     * \brief Renders all active sprites to the screen.
+     */
+    void render_sprites();
+
+    /**
+     * \todo Include color handling for sprites.
+     * \todo Implement particle emitter rendering with sprites.
+     * \todo Add text rendering using SDL_ttf for text components.
+     * \todo Implement a text component and a button component.
+     * \todo Ensure each sprite is checked for active status before rendering.
+     * \todo Sort all layers by order before rendering.
+     * \todo Consider adding text input functionality.
+     */
 
 private:
-	RenderSystem();
-	~RenderSystem();
+	//! Pointer to the current active camera for rendering
+	// \todo needs a better solution
+    Camera * curr_cam; 
 };
 } // namespace crepe