5 files changed, 239 insertions, 137 deletions

diff --git a/src/crepe/api/Event.h b/src/crepe/api/Event.h
index f2f3daf..265e925 100644
--- a/src/crepe/api/Event.h
+++ b/src/crepe/api/Event.h
@@ -4,7 +4,7 @@
 #include <string>
 
 #include "KeyCodes.h"
-
+#include "types.h"
 namespace crepe {
 
 /**
@@ -38,11 +38,8 @@ public:
  */
 class MousePressEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
+	//! mouse position
+	ivec2 mouse_pos = {0,0};
 
 	//! The mouse button that was pressed.
 	MouseButton button = MouseButton::NONE;
@@ -53,11 +50,8 @@ public:
  */
 class MouseClickEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
+	//! mouse position
+	ivec2 mouse_pos = {0,0};
 
 	//! The mouse button that was clicked.
 	MouseButton button = MouseButton::NONE;
@@ -68,11 +62,8 @@ public:
  */
 class MouseReleaseEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
+	//! mouse position
+	ivec2 mouse_pos = {0,0};
 
 	//! The mouse button that was released.
 	MouseButton button = MouseButton::NONE;
@@ -83,17 +74,10 @@ public:
  */
 class MouseMoveEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
-
-	// Movement since last event in x
-	int delta_x = 0;
-
-	// Movement since last event in y
-	int delta_y = 0;
+	//! new mouse position
+	ivec2 mouse_pos = {0,0};
+	//! The change in mouse position relative to the last position (in pixels).
+	ivec2 mouse_delta = {0,0};
 };
 
 /**
@@ -101,12 +85,8 @@ public:
  */
 class MouseScrollEvent : public Event {
 public:
-	//! X-coordinate of the mouse position at the time of the event.
-	int mouse_x = 0;
-
-	//! Y-coordinate of the mouse position at the time of the event.
-	int mouse_y = 0;
-
+	//! mouse position when the scroll happened.
+	ivec2 mouse_pos = {0,0};
 	//! scroll direction (-1 = down, 1 = up)
 	int scroll_direction = 0;
 	//! scroll amount in y axis (from and away from the person).
@@ -127,4 +107,55 @@ public:
  */
 class ShutDownEvent : public Event {};
 
+/**
+ * \brief Event triggered to indicate the window is overlapped by another window.
+ * 
+ * When two windows overlap the bottom window gets distorted and that window has to be redrawn.
+ */
+class WindowExposeEvent : public Event{};
+
+/**
+ * \brief Event triggered to indicate the window is resized.
+ */
+class WindowResizeEvent : public Event{
+	public:
+	//! new window dimensions
+	ivec2 dimensions = {0,0};
+};
+
+/**
+ * \brief Event triggered to indicate the window is moved.
+ */
+class WindowMoveEvent : public Event{
+	public:
+	//! The change in position relative to the last position (in pixels).
+	ivec2 delta_move = {0,0};
+};
+
+/**
+ * \brief Event triggered to indicate the window is minimized.
+ */
+class WindowMinimizeEvent : public Event{};
+
+/**
+ * \brief Event triggered to indicate the window is maximized
+ */
+class WindowMaximizeEvent : public Event{};
+
+/**
+ * \brief Event triggered to indicate the window gained focus
+ * 
+ * This event is triggered when the window receives focus, meaning it becomes the active window
+ * for user interaction.
+ */
+class WindowFocusGainEvent : public Event{};
+
+/**
+ * \brief Event triggered to indicate the window lost focus
+ * 
+ * This event is triggered when the window loses focus, meaning it is no longer the active window
+ * for user interaction.
+ */
+class WindowFocusLostEvent : public Event{};
+
 } // namespace crepe
diff --git a/src/crepe/api/Transform.h b/src/crepe/api/Transform.h
index 7ee6d65..78407ee 100644
--- a/src/crepe/api/Transform.h
+++ b/src/crepe/api/Transform.h
@@ -13,6 +13,14 @@ namespace crepe {
  */
 class Transform : public Component {
 public:
+	//! Specifies the coordinate space for transformations.
+	enum Space { 
+		//! coordinates are relative to the active camera
+		HUD, 
+		//! coordinates are relative to the game world
+		WORLD,
+	};
+	Space coordinate_space = Space::WORLD;
 	//! Translation (shift)
 	vec2 position = {0, 0};
 	//! Rotation, in degrees clockwise
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp
index 4cc2206..e3410cb 100644
--- a/src/crepe/facade/SDLContext.cpp
+++ b/src/crepe/facade/SDLContext.cpp
@@ -375,65 +375,83 @@ ivec2 SDLContext::get_size(const Texture & ctx) {
 void SDLContext::delay(int ms) const { SDL_Delay(ms); }
 
 std::vector<SDLContext::EventData> SDLContext::get_events() {
-	std::vector<SDLContext::EventData> event_list;
-	SDL_Event event;
-	while (SDL_PollEvent(&event)) {
-		switch (event.type) {
-			case SDL_QUIT:
-				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::SHUTDOWN,
-				});
-				break;
-			case SDL_KEYDOWN:
-				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::KEYDOWN,
-					.key = sdl_to_keycode(event.key.keysym.scancode),
-					.key_repeat = (event.key.repeat != 0),
-				});
-				break;
-			case SDL_KEYUP:
-				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::KEYUP,
-					.key = sdl_to_keycode(event.key.keysym.scancode),
-				});
-				break;
-			case SDL_MOUSEBUTTONDOWN:
-				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::MOUSEDOWN,
-					.mouse_button = sdl_to_mousebutton(event.button.button),
-					.mouse_position = {event.button.x, event.button.y},
-				});
-				break;
-			case SDL_MOUSEBUTTONUP: {
-				int x, y;
-				SDL_GetMouseState(&x, &y);
-				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::MOUSEUP,
-					.mouse_button = sdl_to_mousebutton(event.button.button),
-					.mouse_position = {event.button.x, event.button.y},
-				});
-			} break;
-
-			case SDL_MOUSEMOTION: {
-				event_list.push_back(
-					EventData{.event_type = SDLContext::EventType::MOUSEMOVE,
-							  .mouse_position = {event.motion.x, event.motion.y},
-							  .rel_mouse_move = {event.motion.xrel, event.motion.yrel}});
-			} break;
-
-			case SDL_MOUSEWHEEL: {
-				event_list.push_back(EventData{
-					.event_type = SDLContext::EventType::MOUSEWHEEL,
-					.mouse_position = {event.motion.x, event.motion.y},
-					// TODO: why is this needed?
-					.scroll_direction = event.wheel.y < 0 ? -1 : 1,
-					.scroll_delta = event.wheel.preciseY,
-				});
-			} break;
-		}
-	}
-	return event_list;
+    std::vector<SDLContext::EventData> event_list;
+    SDL_Event event;
+
+    // Handle general SDL events
+    while (SDL_PollEvent(&event)) {
+        switch (event.type) {
+            case SDL_QUIT:
+                event_list.push_back({SDLContext::EventType::SHUTDOWN, {}, {}, {}});
+                break;
+            case SDL_KEYDOWN:
+                event_list.push_back({SDLContext::EventType::KEYDOWN, 
+                                      {sdl_to_keycode(event.key.keysym.scancode), event.key.repeat != 0}, {}, {}});
+                break;
+            case SDL_KEYUP:
+                event_list.push_back({SDLContext::EventType::KEYUP, 
+                                      {sdl_to_keycode(event.key.keysym.scancode), false}, {}, {}});
+                break;
+            case SDL_MOUSEBUTTONDOWN:
+                event_list.push_back({SDLContext::EventType::MOUSEDOWN, {}, 
+                                      {sdl_to_mousebutton(event.button.button), {event.button.x, event.button.y}}, {}});
+                break;
+            case SDL_MOUSEBUTTONUP:
+                event_list.push_back({SDLContext::EventType::MOUSEUP, {}, 
+                                      {sdl_to_mousebutton(event.button.button), {event.button.x, event.button.y}}, {}});
+                break;
+            case SDL_MOUSEMOTION:
+                event_list.push_back({SDLContext::EventType::MOUSEMOVE, {}, 
+                                      {{}, {event.motion.x, event.motion.y}, -1, INFINITY, {event.motion.xrel, event.motion.yrel}}, {}});
+                break;
+            case SDL_MOUSEWHEEL:
+                event_list.push_back({SDLContext::EventType::MOUSEWHEEL, {}, 
+                                      {{}, {}, event.wheel.y < 0 ? -1 : 1, event.wheel.preciseY, {}}, {}});
+                break;
+
+            // Forward window events for further processing
+            case SDL_WINDOWEVENT:
+                handle_window_event(event.window, event_list);
+                break;
+        }
+    }
+
+    return event_list;
+}
+
+// Separate function for SDL_WINDOWEVENT subtypes
+void SDLContext::handle_window_event(const SDL_WindowEvent& window_event,
+                                     std::vector<SDLContext::EventData>& event_list) {
+    switch (window_event.event) {
+        case SDL_WINDOWEVENT_EXPOSED:
+            event_list.push_back({SDLContext::EventType::WINDOW_EXPOSE, {}, {}, {}});
+            break;
+        case SDL_WINDOWEVENT_RESIZED:
+            event_list.push_back({SDLContext::EventType::WINDOW_RESIZE, {}, {}, 
+                                  {{}, {window_event.data1, window_event.data2}}});
+            break;
+        case SDL_WINDOWEVENT_MOVED:
+            event_list.push_back({SDLContext::EventType::WINDOW_MOVE, {}, {}, 
+                                  {{window_event.data1, window_event.data2}, {}}});
+            break;
+        case SDL_WINDOWEVENT_MINIMIZED:
+            event_list.push_back({SDLContext::EventType::WINDOW_MINIMIZE, {}, {}, {}});
+            break;
+        case SDL_WINDOWEVENT_MAXIMIZED:
+            event_list.push_back({SDLContext::EventType::WINDOW_MAXIMIZE, {}, {}, {}});
+            break;
+        case SDL_WINDOWEVENT_FOCUS_GAINED:
+            event_list.push_back({SDLContext::EventType::WINDOW_FOCUS_GAIN, {}, {}, {}});
+            break;
+        case SDL_WINDOWEVENT_FOCUS_LOST:
+            event_list.push_back({SDLContext::EventType::WINDOW_FOCUS_LOST, {}, {}, {}});
+            break;
+    }
 }
+
+
+
+
 void SDLContext::set_color_texture(const Texture & texture, const Color & color) {
 	SDL_SetTextureColorMod(texture.texture.get(), color.r, color.g, color.b);
 	SDL_SetTextureAlphaMod(texture.texture.get(), color.a);
diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h
index e232511..1f83985 100644
--- a/src/crepe/facade/SDLContext.h
+++ b/src/crepe/facade/SDLContext.h
@@ -79,19 +79,37 @@ public:
 		KEYUP,
 		KEYDOWN,
 		SHUTDOWN,
-
+		WINDOW_MINIMIZE,
+		WINDOW_MAXIMIZE,
+		WINDOW_FOCUS_GAIN,
+		WINDOW_FOCUS_LOST,
+		WINDOW_MOVE,
+		WINDOW_RESIZE,
+		WINDOW_EXPOSE,
 	};
-	//! EventData struct for passing event data from facade
-	struct EventData {
-		SDLContext::EventType event_type = SDLContext::EventType::NONE;
+	struct KeyData{
 		Keycode key = Keycode::NONE;
 		bool key_repeat = false;
+	};
+	struct MouseData{
 		MouseButton mouse_button = MouseButton::NONE;
 		ivec2 mouse_position = {-1, -1};
 		int scroll_direction = -1;
 		float scroll_delta = INFINITY;
 		ivec2 rel_mouse_move = {-1, -1};
 	};
+	struct WindowData{
+		ivec2 move_delta;
+		ivec2 resize_dimension;
+	};
+	//! EventData struct for passing event data from facade
+	struct EventData {
+		SDLContext::EventType event_type = SDLContext::EventType::NONE;
+		KeyData key_data;
+		MouseData mouse_data;
+		WindowData window_data;
+	};
+	
 	/**
 	 * \brief Gets the singleton instance of SDLContext.
 	 * \return Reference to the SDLContext instance.
@@ -116,7 +134,14 @@ private:
 	 * \return Events that occurred since last call to `get_events()`
 	 */
 	std::vector<SDLContext::EventData> get_events();
-
+	/**
+	 * \brief Fills event_list with triggered window events
+	 *
+	 * This method checks if any window events are triggered and adds them to the event_list.
+	 *
+	 */
+	void handle_window_event(const SDL_WindowEvent& window_event,
+                                     std::vector<SDLContext::EventData>& event_list);
 	/**
 	 * \brief Converts an SDL key code to the custom Keycode type.
 	 *
diff --git a/src/crepe/system/InputSystem.cpp b/src/crepe/system/InputSystem.cpp
index aaa8bdf..b7d2eb4 100644
--- a/src/crepe/system/InputSystem.cpp
+++ b/src/crepe/system/InputSystem.cpp
@@ -26,29 +26,31 @@ void InputSystem::update() {
 	Transform & cam_transform = transform_vec.front().get();
 	int camera_origin_x = cam_transform.position.x + current_cam.data.postion_offset.x
 						  - (current_cam.viewport_size.x / 2);
-	int camera_origin_y = cam_transform.position.y + current_cam.data.postion_offset.y
+	int camera_origin_y = 
+	ivec2 camera_origin;
+	camera_origin.y = cam_transform.position.y + current_cam.data.postion_offset.y
 						  - (current_cam.viewport_size.y / 2);
-
+	camera_origin
 	for (const SDLContext::EventData & event : event_list) {
-		int world_mouse_x = event.mouse_position.x + camera_origin_x;
-		int world_mouse_y = event.mouse_position.y + camera_origin_y;
+		int adjusted_mouse_x = event.mouse_data.mouse_position.x + camera_origin_x;
+		int adjusted_mouse_y = event.mouse_data.mouse_position.y + camera_origin_y;
 		// check if the mouse is within the viewport
 		bool mouse_in_viewport
-			= !(world_mouse_x < camera_origin_x
-				|| world_mouse_x > camera_origin_x + current_cam.viewport_size.x
-				|| world_mouse_y < camera_origin_y
-				|| world_mouse_y > camera_origin_y + current_cam.viewport_size.y);
+			= !(adjusted_mouse_x < camera_origin_x
+				|| adjusted_mouse_x > camera_origin_x + current_cam.viewport_size.x
+				|| adjusted_mouse_y < camera_origin_y
+				|| adjusted_mouse_y > camera_origin_y + current_cam.viewport_size.y);
 
 		switch (event.event_type) {
 			case SDLContext::EventType::KEYDOWN:
 				event_mgr.queue_event<KeyPressEvent>(KeyPressEvent{
-					.repeat = event.key_repeat,
-					.key = event.key,
+					.repeat = event.key_data.key_repeat,
+					.key = event.key_data.key,
 				});
 				break;
 			case SDLContext::EventType::KEYUP:
 				event_mgr.queue_event<KeyReleaseEvent>(KeyReleaseEvent{
-					.key = event.key,
+					.key = event.key_data.key,
 				});
 				break;
 			case SDLContext::EventType::MOUSEDOWN:
@@ -56,36 +58,32 @@ void InputSystem::update() {
 					break;
 				}
 				event_mgr.queue_event<MousePressEvent>(MousePressEvent{
-					.mouse_x = world_mouse_x,
-					.mouse_y = world_mouse_y,
-					.button = event.mouse_button,
+					.mouse_pos = {adjusted_mouse_x,adjusted_mouse_y},
+					.button = event.mouse_data.mouse_button,
 				});
-				this->last_mouse_down_position = {world_mouse_x, world_mouse_y};
-				this->last_mouse_button = event.mouse_button;
+				this->last_mouse_down_position = {adjusted_mouse_x, adjusted_mouse_y};
+				this->last_mouse_button = event.mouse_data.mouse_button;
 				break;
 			case SDLContext::EventType::MOUSEUP: {
 				if (!mouse_in_viewport) {
 					break;
 				}
 				event_mgr.queue_event<MouseReleaseEvent>(MouseReleaseEvent{
-					.mouse_x = world_mouse_x,
-					.mouse_y = world_mouse_y,
-					.button = event.mouse_button,
+					.mouse_pos = {adjusted_mouse_x,adjusted_mouse_y},
+					.button = event.mouse_data.mouse_button,
 				});
-				//check if its a click by checking the last button down
-				int delta_x = world_mouse_x - this->last_mouse_down_position.x;
-				int delta_y = world_mouse_y - this->last_mouse_down_position.y;
+				int delta_x = adjusted_mouse_x - this->last_mouse_down_position.x;
+				int delta_y = adjusted_mouse_y - this->last_mouse_down_position.y;
 
-				if (this->last_mouse_button == event.mouse_button
+				if (this->last_mouse_button == event.mouse_data.mouse_button
 					&& std::abs(delta_x) <= click_tolerance
 					&& std::abs(delta_y) <= click_tolerance) {
 					event_mgr.queue_event<MouseClickEvent>(MouseClickEvent{
-						.mouse_x = world_mouse_x,
-						.mouse_y = world_mouse_y,
-						.button = event.mouse_button,
+						.mouse_pos = {adjusted_mouse_x,adjusted_mouse_y},
+						.button = event.mouse_data.mouse_button,
 					});
 
-					this->handle_click(event.mouse_button, world_mouse_x, world_mouse_y);
+					this->handle_click(event.mouse_data.mouse_button, adjusted_mouse_x, adjusted_mouse_y);
 				}
 			} break;
 			case SDLContext::EventType::MOUSEMOVE:
@@ -93,31 +91,53 @@ void InputSystem::update() {
 					break;
 				}
 				event_mgr.queue_event<MouseMoveEvent>(MouseMoveEvent{
-					.mouse_x = world_mouse_x,
-					.mouse_y = world_mouse_y,
-					.delta_x = event.rel_mouse_move.x,
-					.delta_y = event.rel_mouse_move.y,
+					.mouse_pos = {adjusted_mouse_x,adjusted_mouse_y},
+					.mouse_delta = event.mouse_data.rel_mouse_move,
 				});
-				this->handle_move(event, world_mouse_x, world_mouse_y);
+				this->handle_move(event, adjusted_mouse_x, adjusted_mouse_y);
 				break;
 			case SDLContext::EventType::MOUSEWHEEL:
 				event_mgr.queue_event<MouseScrollEvent>(MouseScrollEvent{
-					.mouse_x = world_mouse_x,
-					.mouse_y = world_mouse_y,
-					.scroll_direction = event.scroll_direction,
-					.scroll_delta = event.scroll_delta,
+					.mouse_pos = {adjusted_mouse_x,adjusted_mouse_y},
+					.scroll_direction = event.mouse_data.scroll_direction,
+					.scroll_delta = event.mouse_data.scroll_delta,
 				});
 				break;
 			case SDLContext::EventType::SHUTDOWN:
 				event_mgr.queue_event<ShutDownEvent>(ShutDownEvent{});
 				break;
+			case SDLContext::EventType::WINDOW_EXPOSE:
+				event_mgr.queue_event<WindowExposeEvent>(WindowExposeEvent{});
+				break;
+            case SDLContext::EventType::WINDOW_RESIZE:
+				event_mgr.queue_event<WindowResizeEvent>(WindowResizeEvent{
+					.dimensions = event.window_data.resize_dimension,
+				});
+				break;
+            case SDLContext::EventType::WINDOW_MOVE:
+				event_mgr.queue_event<WindowMoveEvent>(WindowMoveEvent{
+					.delta_move = event.window_data.move_delta,
+				});
+				break;
+            case SDLContext::EventType::WINDOW_MINIMIZE:
+				event_mgr.queue_event<WindowMinimizeEvent>(WindowMinimizeEvent{});
+				break;
+            case SDLContext::EventType::WINDOW_MAXIMIZE:
+				event_mgr.queue_event<WindowMaximizeEvent>(WindowMaximizeEvent{});
+				break;
+            case SDLContext::EventType::WINDOW_FOCUS_GAIN:
+				event_mgr.queue_event<WindowFocusGainEvent>(WindowFocusGainEvent{});
+				break;
+            case SDLContext::EventType::WINDOW_FOCUS_LOST:
+				event_mgr.queue_event<WindowFocusLostEvent>(WindowFocusLostEvent{});
+				break;
 			default:
 				break;
 		}
 	}
 }
 void InputSystem::handle_move(const SDLContext::EventData & event_data,
-							  const int world_mouse_x, const int world_mouse_y) {
+							  const int adjusted_mouse_x, const int adjusted_mouse_y) {
 	ComponentManager & mgr = this->mediator.component_manager;
 
 	RefVector<Button> buttons = mgr.get_components_by_type<Button>();
@@ -129,7 +149,7 @@ void InputSystem::handle_move(const SDLContext::EventData & event_data,
 
 		bool was_hovering = button.hover;
 		if (button.active
-			&& this->is_mouse_inside_button(world_mouse_x, world_mouse_y, button, transform)) {
+			&& this->is_mouse_inside_button(adjusted_mouse_x, adjusted_mouse_y, button, transform)) {
 			button.hover = true;
 			if (!was_hovering && button.on_mouse_enter) {
 				button.on_mouse_enter();
@@ -144,8 +164,8 @@ void InputSystem::handle_move(const SDLContext::EventData & event_data,
 	}
 }
 
-void InputSystem::handle_click(const MouseButton & mouse_button, const int world_mouse_x,
-							   const int world_mouse_y) {
+void InputSystem::handle_click(const MouseButton & mouse_button, const int adjusted_mouse_x,
+							   const int adjusted_mouse_y) {
 	ComponentManager & mgr = this->mediator.component_manager;
 
 	RefVector<Button> buttons = mgr.get_components_by_type<Button>();
@@ -156,7 +176,7 @@ void InputSystem::handle_click(const MouseButton & mouse_button, const int world
 		Transform & transform = transform_vec.front().get();
 
 		if (button.active
-			&& this->is_mouse_inside_button(world_mouse_x, world_mouse_y, button, transform)) {
+			&& this->is_mouse_inside_button(adjusted_mouse_x, adjusted_mouse_y, button, transform)) {
 			this->handle_button_press(button);
 		}
 	}