Merge branch 'master' of https://github.com/lonkaars/crepe into wouter/gameloop

1 files changed, 108 insertions, 23 deletions

diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h
index e49ca78..e232511 100644
--- a/src/crepe/facade/SDLContext.h
+++ b/src/crepe/facade/SDLContext.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <SDL2/SDL.h>
 #include <SDL2/SDL_keycode.h>
 #include <SDL2/SDL_rect.h>
 #include <SDL2/SDL_render.h>
@@ -9,38 +10,88 @@
 #include <memory>
 #include <string>
 
-#include "../api/Camera.h"
-#include "../api/Sprite.h"
-
+#include "api/Camera.h"
 #include "api/Color.h"
+#include "api/KeyCodes.h"
+#include "api/Sprite.h"
 #include "api/Texture.h"
+#include "api/Transform.h"
 #include "types.h"
 
 namespace crepe {
 
-// TODO: SDL_Keycode is defined in a header not distributed with crepe, which means this
-// typedef is unusable when crepe is packaged. Wouter will fix this later.
-typedef SDL_Keycode CREPE_KEYCODES;
-
+class LoopManager;
+class InputSystem;
 /**
  * \class SDLContext
  * \brief Facade for the SDL library
- * 
+ *
  * SDLContext is a singleton that handles the SDL window and renderer, provides methods for
  * event handling, and rendering to the screen. It is never used directly by the user
  */
 class SDLContext {
 public:
+	//! data that the camera component cannot hold
+	struct CameraValues {
+
+		//! zoomed in viewport in game_units
+		vec2 zoomed_viewport;
+
+		/**
+		 * \brief scaling factor
+		 *
+		 * depending on the black bars type will the scaling be different.
+		 * - letterboxing --> scaling on the y-as
+		 * - pillarboxing --> scaling on the x-as
+		 */
+		vec2 render_scale;
+
+		/**
+		 * \brief size of calculated black bars
+		 *
+		 * depending on the black bars type will the size be different
+		 * - lettorboxing --> {0, bar_height}
+		 * - pillarboxing --> {bar_width , 0}
+		 */
+		vec2 bar_size;
+
+		//! Calculated camera position
+		vec2 cam_pos;
+	};
+
+	//! rendering data needed to render on screen
 	struct RenderContext {
 		const Sprite & sprite;
-		const Camera & cam;
-		const vec2 & cam_pos;
+		const CameraValues & cam;
 		const vec2 & pos;
 		const double & angle;
 		const double & scale;
 	};
 
 public:
+	//! EventType enum for passing eventType
+	enum EventType {
+		NONE = 0,
+		MOUSEDOWN,
+		MOUSEUP,
+		MOUSEMOVE,
+		MOUSEWHEEL,
+		KEYUP,
+		KEYDOWN,
+		SHUTDOWN,
+
+	};
+	//! EventData struct for passing event data from facade
+	struct EventData {
+		SDLContext::EventType event_type = SDLContext::EventType::NONE;
+		Keycode key = Keycode::NONE;
+		bool key_repeat = false;
+		MouseButton mouse_button = MouseButton::NONE;
+		ivec2 mouse_position = {-1, -1};
+		int scroll_direction = -1;
+		float scroll_delta = INFINITY;
+		ivec2 rel_mouse_move = {-1, -1};
+	};
 	/**
 	 * \brief Gets the singleton instance of SDLContext.
 	 * \return Reference to the SDLContext instance.
@@ -53,17 +104,42 @@ public:
 	SDLContext & operator=(SDLContext &&) = delete;
 
 private:
-	//! will only use handle_events
-	friend class LoopManager;
+	//! will only use get_events
+	friend class InputSystem;
 	/**
-	 * \brief Handles SDL events such as window close and input.
-	 * \param running Reference to a boolean flag that controls the main loop.
+	 * \brief Retrieves a list of all events from the SDL context.
+	 *
+	 * This method retrieves all the events from the SDL context that are currently
+	 * available. It is primarily used by the InputSystem to process various
+	 * input events such as mouse clicks, mouse movements, and keyboard presses.
+	 *
+	 * \return Events that occurred since last call to `get_events()`
 	 */
-	void handle_events(bool & running);
+	std::vector<SDLContext::EventData> get_events();
+
+	/**
+	 * \brief Converts an SDL key code to the custom Keycode type.
+	 *
+	 * This method maps an SDL key code to the corresponding `Keycode` enum value,
+	 * which is used internally by the system to identify the keys.
+	 *
+	 * \param sdl_key The SDL key code to convert.
+	 * \return The corresponding `Keycode` value or `Keycode::NONE` if the key is unrecognized.
+	 */
+	Keycode sdl_to_keycode(SDL_Keycode sdl_key);
+
+	/**
+	 * \brief Converts an SDL mouse button code to the custom MouseButton type.
+	 *
+	 * This method maps an SDL mouse button code to the corresponding `MouseButton`
+	 * enum value, which is used internally by the system to identify mouse buttons.
+	 *
+	 * \param sdl_button The SDL mouse button code to convert.
+	 * \return The corresponding `MouseButton` value or `MouseButton::NONE` if the key is unrecognized
+	 */
+	MouseButton sdl_to_mousebutton(Uint8 sdl_button);
 
 private:
-	//! Will only use get_ticks
-	friend class AnimatorSystem;
 	//! Will only use delay
 	friend class LoopTimer;
 	/**
@@ -118,7 +194,7 @@ private:
 
 	/**
 	 * \brief Draws a sprite to the screen using the specified transform and camera.
-	 * \param RenderCtx Reference to rendering data to draw
+	 * \param RenderContext Reference to rendering data to draw
 	 */
 	void draw(const RenderContext & ctx);
 
@@ -132,9 +208,16 @@ private:
 	 * \brief sets the background of the camera (will be adjusted in future PR)
 	 * \param camera Reference to the Camera object.
 	 */
-	void set_camera(const Camera & camera);
+	CameraValues set_camera(const Camera & camera);
 
 private:
+	//! the data needed to construct a sdl dst rectangle
+	struct DestinationRectangleData {
+		const Sprite & sprite;
+		const CameraValues & cam;
+		const vec2 & pos;
+		const double & img_scale;
+	};
 	/**
 	 * \brief calculates the sqaure size of the image
 	 *
@@ -150,15 +233,14 @@ private:
 	 * \param pos the pos in world units
 	 * \param cam the camera of the current scene
 	 * \param cam_pos the current postion of the camera
-	 * \param img_scale the image multiplier for increasing img size 
+	 * \param img_scale the image multiplier for increasing img size
 	 * \return sdl rectangle to draw a dst image to draw on the screen
 	 */
-	SDL_Rect get_dst_rect(const Sprite & sprite, const vec2 & pos, const Camera & cam,
-						  const vec2 & cam_pos, const double & img_scale) const;
+	SDL_FRect get_dst_rect(const DestinationRectangleData & data) const;
 	/**
 	 * \brief Set an additional color value multiplied into render copy operations.
 	 *
-	 * \param  texture the given texture to adjust 
+	 * \param  texture the given texture to adjust
 	 * \param  color the color data for the texture
 	 */
 	void set_color_texture(const Texture & texture, const Color & color);
@@ -169,6 +251,9 @@ private:
 
 	//! renderer for the crepe engine
 	std::unique_ptr<SDL_Renderer, std::function<void(SDL_Renderer *)>> game_renderer;
+
+	//! black bars rectangle to draw
+	SDL_FRect black_bars[2] = {};
 };
 
 } // namespace crepe