Merge branch 'master' of github.com:lonkaars/crepe

34 files changed, 763 insertions, 79 deletions

diff --git a/lib/SDL_ttf b/lib/SDL_ttf
new file mode 160000
+Subproject a3d0895c1b60c41ff9e85d9203ddd7485c014da
diff --git a/mwe/audio/miniaudio/main.cpp b/mwe/audio/miniaudio/main.cpp
index bf31898..5c4f667 100644
--- a/mwe/audio/miniaudio/main.cpp
+++ b/mwe/audio/miniaudio/main.cpp
@@ -33,12 +33,10 @@ int main() {
 	ma_sound_start(&sfx[2]);
 	ma_sound_start(&bgm); // this actually resumes now
 	this_thread::sleep_for(500ms);
-	for (unsigned i = 0; i < 3; i++)
-		ma_sound_seek_to_pcm_frame(&sfx[i], 0);
+	for (unsigned i = 0; i < 3; i++) ma_sound_seek_to_pcm_frame(&sfx[i], 0);
 
 	// 5. play all samples simultaniously
-	for (unsigned i = 0; i < 3; i++)
-		ma_sound_start(&sfx[i]);
+	for (unsigned i = 0; i < 3; i++) ma_sound_start(&sfx[i]);
 	this_thread::sleep_for(1000ms);
 
 	ma_engine_uninit(&engine);
diff --git a/mwe/events/CMakeLists.txt b/mwe/events/CMakeLists.txt
index 585d869..12e45a7 100644
--- a/mwe/events/CMakeLists.txt
+++ b/mwe/events/CMakeLists.txt
@@ -2,30 +2,39 @@ cmake_minimum_required(VERSION 3.5)
 project(gameloop)
 
 # Set the C++ standard (optional, but good practice)
-set(CMAKE_C_STANDARD 11)
+set(CMAKE_C_STANDARD 17)
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
 set(CMAKE_BUILD_TYPE Debug)
 
 # Find the SDL2 package
 find_package(SDL2 REQUIRED)
+# Find the SDL2_ttf package
+find_package(SDL2_ttf REQUIRED)
 
 add_executable(gameloop
-	src/window.cpp
-	src/main.cpp
-	#src/eventHandler.cpp
-	src/eventManager.cpp
-	src/event.cpp
-	src/loopManager.cpp
-	src/timer.cpp
-	src/keyCodes.cpp
-	src/eventHandler.cpp
+    src/window.cpp
+    src/main.cpp
+    src/eventManager.cpp
+    src/event.cpp
+    src/loopManager.cpp
+    src/timer.cpp
+    src/keyCodes.cpp
+    src/eventHandler.cpp
+    src/iMouseListener.cpp
+    src/iKeyListener.cpp
+    src/mouseListenerTest.cpp
+    src/keyListenerTest.cpp
+    src/inputSystem.cpp
+    src/uiRenderer.cpp
+    src/uiObject.cpp
 )
 
-# Link the SDL2 library to your project
-target_link_libraries(gameloop ${SDL2_LIBRARIES})
+target_link_libraries(gameloop ${SDL2_LIBRARIES} SDL2_ttf::SDL2_ttf)
 
 # Include SDL2 header files and project headers
 target_include_directories(gameloop PRIVATE ${SDL2_INCLUDE_DIRS})
 target_include_directories(gameloop PRIVATE ${CMAKE_SOURCE_DIR}/include)
 
+# Copy font files to the build directory
+file(COPY ${PROJECT_SOURCE_DIR}/font DESTINATION ${CMAKE_BINARY_DIR})
diff --git a/mwe/events/include/event.h b/mwe/events/include/event.h
index 730ee4b..16c75bf 100644
--- a/mwe/events/include/event.h
+++ b/mwe/events/include/event.h
@@ -6,7 +6,6 @@
 #include <string>
 #include <unordered_map>
 #include <variant>
-
 class UUIDGenerator {
 public:
 	static std::uint32_t getUniqueID() {
@@ -63,7 +62,19 @@ public:
 	Keycode key = 0;
 	int repeatCount = 0;
 };
+class MouseClickEvent : public Event {
+public:
+	MouseClickEvent(int x, int y, MouseButton button);
 
+	REGISTER_EVENT_TYPE("KeyClickedEvent");
+	std::pair<int, int> getMousePosition() const;
+	MouseButton getButton() const { return button; }
+
+private:
+	int mouseX = 0;
+	int mouseY = 0;
+	MouseButton button;
+};
 // KeyReleasedEvent class
 class KeyReleasedEvent : public Event {
 public:
@@ -89,6 +100,33 @@ public:
 private:
 	int mouseX = 0;
 	int mouseY = 0;
+	MouseButton button;
+};
+class MouseReleasedEvent : public Event {
+public:
+	MouseReleasedEvent(int mouseX, int mouseY, MouseButton button);
+
+	REGISTER_EVENT_TYPE(MouseReleasedEvent)
+
+	std::pair<int, int> getMousePosition() const;
+	MouseButton getMouseButton() const;
+
+private:
+	int mouseX = 0;
+	int mouseY = 0;
+	MouseButton button;
+};
+class MouseMovedEvent : public Event {
+public:
+	MouseMovedEvent(int mouseX, int mouseY);
+
+	REGISTER_EVENT_TYPE(MouseMovedEvent)
+
+	std::pair<int, int> getMousePosition() const;
+
+private:
+	int mouseX = 0;
+	int mouseY = 0;
 };
 class CollisionEvent : public Event {
 public:
@@ -101,3 +139,33 @@ public:
 private:
 	Collision collisionData;
 };
+class TextSubmitEvent : public Event {
+public:
+	TextSubmitEvent(std::string submittedText);
+
+	REGISTER_EVENT_TYPE(TextSubmitEvent)
+
+	std::string getText() const;
+
+private:
+	std::string text;
+};
+class ShutDownEvent : public Event {
+public:
+	ShutDownEvent() : Event("ShutDownEvent") {};
+
+	REGISTER_EVENT_TYPE(ShutDownEvent)
+
+private:
+};
+// class ButtonClickEvent : public Event {
+// public:
+//     ButtonClickEvent(int x,int y,int width,int height);
+
+//     REGISTER_EVENT_TYPE(TextSubmitEvent)
+
+//     std::string getText() const;
+
+// private:
+//     std::string text;
+// };
diff --git a/mwe/events/include/eventHandler.h b/mwe/events/include/eventHandler.h
index 7414801..aa8f63b 100644
--- a/mwe/events/include/eventHandler.h
+++ b/mwe/events/include/eventHandler.h
@@ -1,9 +1,8 @@
 #pragma once
-
 #include "event.h"
-
 #include <functional>
 #include <iostream>
+
 template <typename EventType>
 using EventHandler = std::function<void(const EventType & e)>;
 
diff --git a/mwe/events/include/gameObject.h b/mwe/events/include/gameObject.h
new file mode 100644
index 0000000..48e239b
--- /dev/null
+++ b/mwe/events/include/gameObject.h
@@ -0,0 +1,20 @@
+#pragma once
+#include <cstdint>
+#include <string>
+class GameObject {
+public:
+	GameObject() {}
+
+	// template <typename... Args>
+	// void addSpriteComponent(Args &&... args);
+	// template <typename... Args>
+	// void addRigidbodyComponent(Args &&... args);
+	// template <typename... Args>
+	// void addColiderComponent(Args &&... args);
+
+	std::uint32_t mId;
+	std::string mName;
+	std::string mTag;
+	bool mActive;
+	int mLayer;
+};
diff --git a/mwe/events/include/iKeyListener.h b/mwe/events/include/iKeyListener.h
new file mode 100644
index 0000000..5fee2eb
--- /dev/null
+++ b/mwe/events/include/iKeyListener.h
@@ -0,0 +1,20 @@
+#pragma once
+#include "event.h"
+#include "eventHandler.h"
+#include "eventManager.h"
+class IKeyListener {
+public:
+	virtual ~IKeyListener();
+	virtual void onKeyPressed(const KeyPressedEvent & event) = 0;
+	virtual void onKeyReleased(const KeyReleasedEvent & event) = 0;
+
+protected:
+	void subscribeEvents(int listenerId = 0);
+	void unsubscribeEvents(int listenerId = 0);
+	void activate(int listenerId = 0) { subscribeEvents(listenerId); }
+	void deactivate(int listenerId = 0) { unsubscribeEvents(listenerId); }
+
+private:
+	EventHandler<KeyPressedEvent> keyPressedHandler;
+	EventHandler<KeyReleasedEvent> keyReleasedHandler;
+};
diff --git a/mwe/events/include/iMouseListener.h b/mwe/events/include/iMouseListener.h
new file mode 100644
index 0000000..5b1181c
--- /dev/null
+++ b/mwe/events/include/iMouseListener.h
@@ -0,0 +1,24 @@
+#pragma once
+#include "event.h"
+#include "eventHandler.h"
+#include "eventManager.h"
+
+class IMouseListener {
+public:
+	virtual ~IMouseListener();
+
+	virtual void onMouseClicked(const MouseClickEvent & event) = 0;
+	virtual void onMousePressed(const MousePressedEvent & event) = 0;
+	virtual void onMouseReleased(const MouseReleasedEvent & event) = 0;
+	virtual void onMouseMoved(const MouseMovedEvent & event) = 0;
+
+protected:
+	void subscribeEvents(int listenerId = 0);
+	void unsubscribeEvents(int listenerId = 0);
+
+private:
+	EventHandler<MouseClickEvent> mouseClickHandler;
+	EventHandler<MousePressedEvent> mousePressHandler;
+	EventHandler<MouseReleasedEvent> mouseReleaseHandler;
+	EventHandler<MouseMovedEvent> mouseMoveHandler;
+};
diff --git a/mwe/events/include/inputSystem.h b/mwe/events/include/inputSystem.h
new file mode 100644
index 0000000..3e53b7c
--- /dev/null
+++ b/mwe/events/include/inputSystem.h
@@ -0,0 +1,23 @@
+#pragma once
+#include "event.h"
+#include "eventManager.h"
+#include "keyCodes.h"
+#include "uiObject.h"
+#include <vector>
+class InputSystem {
+public:
+	InputSystem();
+	void registerButton(Button * button);
+	void registerText(Text * label);
+	void registerTextInput(TextInput * input);
+	void processInput();
+
+private:
+	std::vector<Button *> buttons;
+	std::vector<TextInput *> textInputs;
+	std::vector<Text *> texts;
+	void processMouseClick(int mouseX, int mouseY);
+	void processInputField(int mouseX, int mouseY);
+	void processKeyPress(Keycode);
+	void processTextInput(const std::string & text);
+};
diff --git a/mwe/events/include/keyCodes.h b/mwe/events/include/keyCodes.h
index 0879efc..73ba1cd 100644
--- a/mwe/events/include/keyCodes.h
+++ b/mwe/events/include/keyCodes.h
@@ -3,6 +3,16 @@
 #include <cstdint>
 #include <unordered_map>
 using Keycode = uint16_t;
+enum class MouseButton {
+	None = 0,
+	Left_Mouse = 1,
+	Right_Mouse = 2,
+	Middle_Mouse = 3,
+	X1_Mouse = 4,
+	X2_Mouse = 5,
+	Scroll_Up = 6,
+	Scroll_Down = 7,
+};
 enum : Keycode {
 	// From glfw3.h
 	Space = 32,
@@ -136,6 +146,7 @@ enum : Keycode {
 	RightSuper = 347,
 	Menu = 348
 };
+
 // Define the mapping
 extern const std::unordered_map<SDL_Keycode, Keycode> sdlToCustom;
 
diff --git a/mwe/events/include/keyListenerTest.h b/mwe/events/include/keyListenerTest.h
new file mode 100644
index 0000000..08f3feb
--- /dev/null
+++ b/mwe/events/include/keyListenerTest.h
@@ -0,0 +1,12 @@
+#pragma once
+#include "iKeyListener.h"
+#include <iostream>
+
+class KeyListenerTest : public IKeyListener {
+public:
+	KeyListenerTest(int listenerId);
+	~KeyListenerTest();
+
+	void onKeyPressed(const KeyPressedEvent & event) override;
+	void onKeyReleased(const KeyReleasedEvent & event) override;
+};
diff --git a/mwe/events/include/loopManager.h b/mwe/events/include/loopManager.h
index baffb94..9959c94 100644
--- a/mwe/events/include/loopManager.h
+++ b/mwe/events/include/loopManager.h
@@ -5,7 +5,11 @@
 //#include "combinedEvent.h"
 #include "eventHandler.h"
 #include "eventManager.h"
+#include "inputSystem.h"
 #include "loopManager.h"
+#include "uiObject.h"
+#include "uiRenderer.h"
+#include <memory>
 class LoopManager {
 public:
 	LoopManager();
@@ -19,6 +23,7 @@ private:
 	void lateUpdate();
 	void fixedUpdate();
 	void render();
+	void onShutdown(const ShutDownEvent & e);
 	bool gameRunning = false;
 	WindowManager window;
 	int timeScale = 1;
@@ -26,4 +31,6 @@ private:
 	double currentTime;
 	double t = 0.0;
 	double dt = 0.01;
+	std::unique_ptr<InputSystem> inputSystem;
+	EventHandler<ShutDownEvent> shutdownHandler;
 };
diff --git a/mwe/events/include/mouseListenerTest.h b/mwe/events/include/mouseListenerTest.h
new file mode 100644
index 0000000..ca9afc5
--- /dev/null
+++ b/mwe/events/include/mouseListenerTest.h
@@ -0,0 +1,14 @@
+#pragma once
+#include "iMouseListener.h"
+#include <iostream>
+
+class MouseListenerTest : public IMouseListener {
+public:
+	MouseListenerTest(int listenerId);
+	~MouseListenerTest();
+
+	void onMouseClicked(const MouseClickEvent & event) override;
+	void onMousePressed(const MousePressedEvent & event) override;
+	void onMouseReleased(const MouseReleasedEvent & event) override;
+	void onMouseMoved(const MouseMovedEvent & event) override;
+};
diff --git a/mwe/events/include/uiObject.h b/mwe/events/include/uiObject.h
new file mode 100644
index 0000000..23efe44
--- /dev/null
+++ b/mwe/events/include/uiObject.h
@@ -0,0 +1,68 @@
+#pragma once
+#include "event.h"
+#include "eventHandler.h"
+#include "gameObject.h"
+#include <SDL2/SDL.h>
+#include <SDL_ttf.h>
+#include <functional>
+struct Alignment {
+	enum class Horizontal { LEFT, CENTER, RIGHT };
+	enum class Vertical { TOP, MIDDLE, BOTTOM };
+	enum class PositioningMode { RELATIVE, STATIC, ABSOLUTE };
+
+	Horizontal horizontal = Horizontal::CENTER;
+	Vertical vertical = Vertical::MIDDLE;
+	PositioningMode mode = PositioningMode::RELATIVE;
+
+	int staticX = 0;
+	int staticY = 0;
+
+	int marginTop = 0;
+	int marginBottom = 0;
+	int marginLeft = 0;
+	int marginRight = 0;
+};
+struct RGBColor {
+	int red;
+	int green;
+	int blue;
+};
+class UIObject : public GameObject {
+public:
+	UIObject(int width, int height);
+	virtual ~UIObject() {}
+	int width;
+	int height;
+	int x;
+	int y;
+};
+class Button : public UIObject {
+public:
+	Button(int width, int height);
+	RGBColor color;
+	std::function<void()> onClick;
+};
+class Text : public UIObject {
+public:
+	Text(int width, int height);
+	std::string text;
+	int size;
+	Alignment alignment;
+	//font resource
+	TTF_Font * font;
+	RGBColor color;
+};
+class TextInput : public UIObject {
+public:
+	TextInput(int width, int height);
+	std::string textBuffer;
+	std::string placeholder;
+	bool isActive = false;
+	RGBColor textColor;
+	RGBColor backgroundColor;
+	size_t maxLength = 100;
+	Alignment alignment;
+	TTF_Font * font = nullptr;
+	std::function<void()> onSubmit;
+	std::function<void()> onFocus;
+};
diff --git a/mwe/events/include/uiRenderer.h b/mwe/events/include/uiRenderer.h
new file mode 100644
index 0000000..8f22fdf
--- /dev/null
+++ b/mwe/events/include/uiRenderer.h
@@ -0,0 +1,21 @@
+#pragma once
+#include "uiObject.h"
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_ttf.h>
+#include <string>
+
+class UIRenderer {
+public:
+	UIRenderer(SDL_Renderer * renderer);
+	~UIRenderer();
+
+	void render(UIObject * uiObject);
+
+private:
+	SDL_Renderer * renderer;
+	TTF_Font * font;
+
+	void renderButton(Button * button);
+	void renderText(Text * text);
+	void renderTextInput(TextInput * textInput);
+};
diff --git a/mwe/events/include/window.h b/mwe/events/include/window.h
index 9020b1a..bd75c4a 100644
--- a/mwe/events/include/window.h
+++ b/mwe/events/include/window.h
@@ -1,19 +1,27 @@
 #pragma once
+#include "uiObject.h"
+#include "uiRenderer.h"
 #include <SDL2/SDL.h>
-#include <iostream>
 #include <vector>
+
 class WindowManager {
 public:
 	WindowManager();
 	virtual ~WindowManager();
+
 	bool initWindow();
 	void destroyWindow();
-
 	SDL_Renderer * getRenderer();
 
+	void addUIObject(UIObject * uiObject);
+	void renderUIObjects();
+
 private:
 	const int SCREEN_WIDTH = 800;
 	const int SCREEN_HEIGHT = 600;
-	SDL_Window * window = NULL;
-	SDL_Renderer * renderer = NULL;
+	SDL_Window * window = nullptr;
+	SDL_Renderer * renderer = nullptr;
+
+	UIRenderer * uiRenderer;
+	std::vector<UIObject *> uiObjects;
 };
diff --git a/mwe/events/src/event.cpp b/mwe/events/src/event.cpp
index c9201d0..0c9f3ed 100644
--- a/mwe/events/src/event.cpp
+++ b/mwe/events/src/event.cpp
@@ -50,3 +50,24 @@ CollisionEvent::CollisionEvent(Collision collision)
 Collision CollisionEvent::getCollisionData() const {
 	return this->collisionData;
 }
+
+TextSubmitEvent::TextSubmitEvent(std::string text)
+	: text(text), Event("TextSubmitEvent") {}
+
+std::string TextSubmitEvent::getText() const { return this->text; }
+
+MouseReleasedEvent::MouseReleasedEvent(int x, int y, MouseButton button)
+	: mouseX(x), mouseY(y), button(button), Event("MouseReleased") {}
+std::pair<int, int> MouseReleasedEvent::getMousePosition() const {
+	return {mouseX, mouseY};
+}
+MouseClickEvent::MouseClickEvent(int x, int y, MouseButton button)
+	: mouseX(x), mouseY(y), button(button), Event("MouseClickEvent") {}
+MouseMovedEvent::MouseMovedEvent(int x, int y)
+	: mouseX(x), mouseY(y), Event("MouseMovedEvent") {}
+std::pair<int, int> MouseClickEvent::getMousePosition() const {
+	return {mouseX, mouseY};
+}
+std::pair<int, int> MouseMovedEvent::getMousePosition() const {
+	return {mouseX, mouseY};
+}
diff --git a/mwe/events/src/iKeyListener.cpp b/mwe/events/src/iKeyListener.cpp
new file mode 100644
index 0000000..0235fab
--- /dev/null
+++ b/mwe/events/src/iKeyListener.cpp
@@ -0,0 +1,19 @@
+#include "iKeyListener.h"
+
+IKeyListener::~IKeyListener() { unsubscribeEvents(); }
+
+void IKeyListener::subscribeEvents(int listenerId) {
+	keyPressedHandler
+		= [this](const KeyPressedEvent & event) { this->onKeyPressed(event); };
+	keyReleasedHandler = [this](const KeyReleasedEvent & event) {
+		this->onKeyReleased(event);
+	};
+
+	subscribe<KeyPressedEvent>(keyPressedHandler, listenerId);
+	subscribe<KeyReleasedEvent>(keyReleasedHandler, listenerId);
+}
+
+void IKeyListener::unsubscribeEvents(int listenerId) {
+	unsubscribe<KeyPressedEvent>(keyPressedHandler, listenerId);
+	unsubscribe<KeyReleasedEvent>(keyReleasedHandler, listenerId);
+}
diff --git a/mwe/events/src/iMouseListener.cpp b/mwe/events/src/iMouseListener.cpp
new file mode 100644
index 0000000..69d8c9f
--- /dev/null
+++ b/mwe/events/src/iMouseListener.cpp
@@ -0,0 +1,28 @@
+#include "iMouseListener.h"
+IMouseListener::~IMouseListener() { unsubscribeEvents(); }
+
+void IMouseListener::subscribeEvents(int listenerId) {
+	mouseClickHandler = [this](const MouseClickEvent & event) {
+		this->onMouseClicked(event);
+	};
+	mousePressHandler = [this](const MousePressedEvent & event) {
+		this->onMousePressed(event);
+	};
+	mouseReleaseHandler = [this](const MouseReleasedEvent & event) {
+		this->onMouseReleased(event);
+	};
+	mouseMoveHandler
+		= [this](const MouseMovedEvent & event) { this->onMouseMoved(event); };
+
+	subscribe<MouseClickEvent>(mouseClickHandler, listenerId);
+	subscribe<MousePressedEvent>(mousePressHandler, listenerId);
+	subscribe<MouseReleasedEvent>(mouseReleaseHandler, listenerId);
+	subscribe<MouseMovedEvent>(mouseMoveHandler, listenerId);
+}
+
+void IMouseListener::unsubscribeEvents(int listenerId) {
+	unsubscribe<MouseClickEvent>(mouseClickHandler, listenerId);
+	unsubscribe<MousePressedEvent>(mousePressHandler, listenerId);
+	unsubscribe<MouseReleasedEvent>(mouseReleaseHandler, listenerId);
+	unsubscribe<MouseMovedEvent>(mouseMoveHandler, listenerId);
+}
diff --git a/mwe/events/src/inputSystem.cpp b/mwe/events/src/inputSystem.cpp
new file mode 100644
index 0000000..b87b12e
--- /dev/null
+++ b/mwe/events/src/inputSystem.cpp
@@ -0,0 +1,95 @@
+#include "inputSystem.h"
+
+InputSystem::InputSystem() {}
+
+void InputSystem::registerButton(Button * button) { buttons.push_back(button); }
+void InputSystem::registerTextInput(TextInput * input) {
+	textInputs.push_back(input);
+}
+void InputSystem::registerText(Text * label) { texts.push_back(label); }
+
+void InputSystem::processInput() {
+	SDL_Event event;
+	while (SDL_PollEvent(&event)) {
+		switch (event.type) {
+			case SDL_QUIT:
+				triggerEvent(ShutDownEvent());
+				break;
+			case SDL_KEYDOWN:
+				triggerEvent(
+					KeyPressedEvent(getCustomKey(event.key.keysym.sym)));
+				processKeyPress(event.key.keysym.sym);
+				break;
+			case SDL_TEXTINPUT:
+				// Process typed characters
+				processTextInput(event.text.text);
+				break;
+			case SDL_MOUSEBUTTONDOWN: {
+				int mouseX, mouseY;
+				SDL_GetMouseState(&mouseX, &mouseY);
+				processMouseClick(mouseX, mouseY);
+				triggerEvent(MousePressedEvent(mouseX, mouseY));
+				break;
+			}
+		}
+	}
+}
+
+void InputSystem::processMouseClick(int mouseX, int mouseY) {
+	for (auto * button : buttons) {
+		if (mouseX >= button->x && mouseX <= (button->x + button->width)
+			&& mouseY >= button->y && mouseY <= (button->y + button->height)) {
+			button->onClick();
+		}
+	}
+	for (auto * textInput : textInputs) {
+		if (mouseX >= textInput->x && mouseX <= textInput->x + textInput->width
+			&& mouseY >= textInput->y
+			&& mouseY <= textInput->y + textInput->height) {
+			textInput->isActive = true;
+		} else {
+			textInput->isActive = false;
+		}
+	}
+}
+void InputSystem::processKeyPress(Keycode key) {
+	// for (auto* textInput : textInputs) {
+	//     if (textInput->isActive) {
+	//         if (key == SDLK_RETURN || key == SDLK_KP_ENTER) {
+	//             // Submit the text
+	//             if (textInput->onSubmit) {
+	//                 textInput->onSubmit();
+	//             }
+	//         }
+	//         else if (key == SDLK_BACKSPACE) {
+	//             // Handle backspace
+	//             if (!textInput->textBuffer.empty() && textInput->caretPosition > 0) {
+	//                 textInput->textBuffer.erase(textInput->caretPosition - 1, 1);
+	//                 textInput->caretPosition--;
+	//             }
+	//         }
+	//         else if (key == SDLK_LEFT) {
+	//             // Move caret left
+	//             if (textInput->caretPosition > 0) {
+	//                 textInput->caretPosition--;
+	//             }
+	//         }
+	//         else if (key == SDLK_RIGHT) {
+	//             // Move caret right
+	//             if (textInput->caretPosition < textInput->textBuffer.size()) {
+	//                 textInput->caretPosition++;
+	//             }
+	//         }
+	//     }
+	// }
+}
+
+void InputSystem::processTextInput(const std::string & text) {
+	// for (auto* textInput : textInputs) {
+	//     if (textInput->isActive) {
+	//         // Insert text at caret position
+	//         textInput->textBuffer.insert(textInput->caretPosition, text);
+	//         textInput->caretPosition += text.length();
+	//     }
+	// }
+}
diff --git a/mwe/events/src/keyListenerTest.cpp b/mwe/events/src/keyListenerTest.cpp
new file mode 100644
index 0000000..8446dfa
--- /dev/null
+++ b/mwe/events/src/keyListenerTest.cpp
@@ -0,0 +1,15 @@
+#include "keyListenerTest.h"
+
+KeyListenerTest::KeyListenerTest(int listenerId) {
+	subscribeEvents(listenerId);
+}
+
+KeyListenerTest::~KeyListenerTest() { unsubscribeEvents(); }
+
+void KeyListenerTest::onKeyPressed(const KeyPressedEvent & event) {
+	std::cout << "Key pressed: " << event.getKeyCode() << std::endl;
+}
+
+void KeyListenerTest::onKeyReleased(const KeyReleasedEvent & event) {
+	std::cout << "Key released: " << event.getKeyCode() << std::endl;
+}
diff --git a/mwe/events/src/loopManager.cpp b/mwe/events/src/loopManager.cpp
index 8ecb932..0b7d888 100644
--- a/mwe/events/src/loopManager.cpp
+++ b/mwe/events/src/loopManager.cpp
@@ -1,22 +1,27 @@
 #include "loopManager.h"
 
-LoopManager::LoopManager() {}
+LoopManager::LoopManager() : inputSystem(std::make_unique<InputSystem>()) {
+	shutdownHandler
+		= [this](const ShutDownEvent & event) { this->onShutdown(event); };
+	subscribe(shutdownHandler);
+}
 void LoopManager::processInput() {
-	SDL_Event event;
-	SDL_PollEvent(&event);
-	switch (event.type) {
-		case SDL_QUIT:
-			gameRunning = false;
-			break;
-		case SDL_KEYDOWN:
-			triggerEvent(KeyPressedEvent(getCustomKey(event.key.keysym.sym)));
-			break;
-		case SDL_MOUSEBUTTONDOWN:
-			int x, y;
-			SDL_GetMouseState(&x, &y);
-			triggerEvent(MousePressedEvent(x, y));
-			break;
-	}
+	inputSystem->processInput();
+	// SDL_Event event;
+	// SDL_PollEvent(&event);
+	// switch (event.type) {
+	// 	case SDL_QUIT:
+	// 		gameRunning = false;
+	// 		break;
+	// 	case SDL_KEYDOWN:
+	// 		triggerEvent(KeyPressedEvent(getCustomKey(event.key.keysym.sym)));
+	// 		break;
+	// 	case SDL_MOUSEBUTTONDOWN:
+	// 		int x, y;
+	// 		SDL_GetMouseState(&x, &y);
+	// 		triggerEvent(MousePressedEvent(x, y));
+	// 		break;
+	// }
 }
 void LoopManager::setRunning(bool running) { this->gameRunning = running; }
 void LoopManager::fixedUpdate() {
@@ -28,9 +33,8 @@ void LoopManager::loop() {
 
 	while (gameRunning) {
 		timer.update();
-
+		processInput();
 		while (timer.getLag() >= timer.getFixedDeltaTime()) {
-			processInput();
 			fixedUpdate();
 			timer.advanceFixedUpdate();
 		}
@@ -66,22 +70,35 @@ void LoopManager::setup() {
 			  }
 		  };
 	subscribe<KeyPressedEvent>(closeWindowCallback, false);
+	Button * testButton = new Button(200, 200);
+	testButton->color = {100, 0, 100};
+	testButton->onClick
+		= []() { std::cout << "Button was clicked" << std::endl; };
+	testButton->x = 200;
+	testButton->y = 200;
+	inputSystem->registerButton(testButton);
+
+	window.addUIObject(testButton);
+
+	TextInput * testInput = new TextInput(200, 200);
+	testInput->x = 100;
+	testInput->y = 100;
+	testInput->backgroundColor = {20, 50, 80};
+	inputSystem->registerTextInput(testInput);
+	window.addUIObject(testInput);
 }
 void LoopManager::render() {
 	//fprintf(stderr, "**********render********** \n");
 	if (gameRunning) {
-		//window.render(objectList);
+		window.renderUIObjects();
 	}
 }
-
+void LoopManager::onShutdown(const ShutDownEvent & e) {
+	this->gameRunning = false;
+}
 void LoopManager::update() {
 	//fprintf(stderr, "**********normal update********** \n");
 	LoopTimer & timer = LoopTimer::getInstance();
 
 	float delta = timer.getDeltaTime();
-
-	// for (int i = 0; i < objectList.size(); i++) {
-	// 	objectList[i]->setX(objectList[i]->getX() + 50 * delta);
-	// 	objectList[i]->setY(objectList[i]->getY() + 50 * delta);
-	// }
 }
diff --git a/mwe/events/src/main.cpp b/mwe/events/src/main.cpp
index f7e0766..d49cf74 100644
--- a/mwe/events/src/main.cpp
+++ b/mwe/events/src/main.cpp
@@ -1,6 +1,10 @@
 #include "customTypes.h"
 #include "event.h"
+#include "iKeyListener.h"
+#include "iMouseListener.h"
+#include "keyListenerTest.h"
 #include "loopManager.h"
+#include "mouseListenerTest.h"
 #include <SDL2/SDL.h>
 #include <iostream>
 #include <memory>
@@ -44,10 +48,9 @@ void testCollisionEvent() {
 }
 int main(int argc, char * args[]) {
 	LoopManager gameLoop;
-	// Create an event handler for KeyPressedEvent
-	// EventHandler<KeyPressedEvent> callback = [](const KeyPressedEvent& e) {
-	//     onKeyPressed(e);
-	// };
+	int testListenerId = 0;
+	KeyListenerTest keyListener(testListenerId);
+	MouseListenerTest mouseListener(testListenerId);
 	// custom event class poc
 	subscribe<PlayerDamagedEvent>(onPlayerDamaged);
 	triggerEvent(PlayerDamagedEvent(50, 1));
diff --git a/mwe/events/src/mouseListenerTest.cpp b/mwe/events/src/mouseListenerTest.cpp
new file mode 100644
index 0000000..a2a7e6d
--- /dev/null
+++ b/mwe/events/src/mouseListenerTest.cpp
@@ -0,0 +1,27 @@
+#include "mouseListenerTest.h"
+
+MouseListenerTest::MouseListenerTest(int listenerId) {
+	subscribeEvents(listenerId);
+}
+
+MouseListenerTest::~MouseListenerTest() { unsubscribeEvents(); }
+
+void MouseListenerTest::onMouseClicked(const MouseClickEvent & event) {
+	std::cout << "Mouse clicked at: (" << event.getMousePosition().first << ", "
+			  << event.getMousePosition().second << ")" << std::endl;
+}
+
+void MouseListenerTest::onMousePressed(const MousePressedEvent & event) {
+	std::cout << "Mouse button pressed at: (" << event.getMousePosition().first
+			  << ", " << event.getMousePosition().second << ")" << std::endl;
+}
+
+void MouseListenerTest::onMouseReleased(const MouseReleasedEvent & event) {
+	std::cout << "Mouse button released at: (" << event.getMousePosition().first
+			  << ", " << event.getMousePosition().second << ")" << std::endl;
+}
+
+void MouseListenerTest::onMouseMoved(const MouseMovedEvent & event) {
+	std::cout << "Mouse moved to: (" << event.getMousePosition().first << ", "
+			  << event.getMousePosition().second << ")" << std::endl;
+}
diff --git a/mwe/events/src/uiObject.cpp b/mwe/events/src/uiObject.cpp
new file mode 100644
index 0000000..8405469
--- /dev/null
+++ b/mwe/events/src/uiObject.cpp
@@ -0,0 +1,24 @@
+#include "uiObject.h"
+
+// Constructor for UIObject
+UIObject::UIObject(int width, int height) : width(width), height(height) {}
+
+// Constructor for Button
+Button::Button(int width, int height) : UIObject(width, height) {}
+
+Text::Text(int width, int height)
+	: UIObject(width, height), size(12), font(nullptr),
+	  color{255, 255, 255} { // Default size and color
+	alignment.horizontal = Alignment::Horizontal::CENTER;
+	alignment.vertical = Alignment::Vertical::MIDDLE;
+	alignment.mode = Alignment::PositioningMode::RELATIVE;
+}
+
+TextInput::TextInput(int width, int height)
+	: UIObject(width, height), textBuffer(""), placeholder(""), isActive(false),
+	  textColor{255, 255, 255}, backgroundColor{0, 0, 0}, maxLength(100),
+	  font(nullptr) {
+	alignment.horizontal = Alignment::Horizontal::LEFT;
+	alignment.vertical = Alignment::Vertical::TOP;
+	alignment.mode = Alignment::PositioningMode::RELATIVE;
+}
diff --git a/mwe/events/src/uiRenderer.cpp b/mwe/events/src/uiRenderer.cpp
new file mode 100644
index 0000000..9fec272
--- /dev/null
+++ b/mwe/events/src/uiRenderer.cpp
@@ -0,0 +1,107 @@
+#include "uiRenderer.h"
+
+// Constructor
+UIRenderer::UIRenderer(SDL_Renderer * renderer) : renderer(renderer) {}
+
+// Render function
+void UIRenderer::render(UIObject * uiObject) {
+	if (Button * button = dynamic_cast<Button *>(uiObject)) {
+		renderButton(button);
+	} else if (Text * text = dynamic_cast<Text *>(uiObject)) {
+		renderText(text);
+	} else if (TextInput * textInput = dynamic_cast<TextInput *>(uiObject)) {
+		renderTextInput(textInput);
+	}
+}
+
+// Private helper function to render a Button
+void UIRenderer::renderButton(Button * button) {
+	SDL_Rect buttonRect = {button->x, button->y, button->width, button->height};
+	SDL_SetRenderDrawColor(renderer, 100, 100, 255, 255); // Button color
+	SDL_RenderFillRect(renderer, &buttonRect);
+}
+
+// Private helper function to render a Text
+void UIRenderer::renderText(Text * text) {
+	if (text->font != nullptr) {
+		SDL_Color sdlColor
+			= {text->color.red, text->color.green, text->color.blue, 255};
+		SDL_Surface * textSurface
+			= TTF_RenderText_Blended(text->font, text->text.c_str(), sdlColor);
+		if (!textSurface) {
+			std::cerr << "Error creating text surface: " << TTF_GetError()
+					  << std::endl;
+			return;
+		}
+
+		SDL_Texture * textTexture
+			= SDL_CreateTextureFromSurface(renderer, textSurface);
+		if (!textTexture) {
+			std::cerr << "Error creating texture from surface: "
+					  << SDL_GetError() << std::endl;
+			SDL_FreeSurface(textSurface);
+			return;
+		}
+
+		SDL_Rect textRect = {text->x, text->y, textSurface->w, textSurface->h};
+		SDL_RenderCopy(renderer, textTexture, nullptr, &textRect);
+		SDL_FreeSurface(textSurface);
+		SDL_DestroyTexture(textTexture);
+	}
+}
+
+void UIRenderer::renderTextInput(TextInput * textInput) {
+	// // Check if textInput or renderer is null to avoid segmentation faults
+	// if (!textInput || !renderer) {
+	//     std::cerr << "Error: Null pointer detected for textInput or renderer." << std::endl;
+	//     return;
+	// }
+
+	// // Render the background rectangle for the text input
+	// SDL_Rect inputRect = {textInput->x, textInput->y, textInput->width, textInput->height};
+	// SDL_SetRenderDrawColor(renderer, textInput->backgroundColor.red, textInput->backgroundColor.green, textInput->backgroundColor.blue, 255);
+	// SDL_RenderFillRect(renderer, &inputRect);
+
+	// // Check if font is valid
+	// if (!textInput->font) {
+	//     std::cerr << "Error: Font is not loaded for textInput." << std::endl;
+	//     return;
+	// }
+
+	// SDL_Color sdlColor = {textInput->textColor.red, textInput->textColor.green, textInput->textColor.blue, 255};
+
+	// if (!textInput->textBuffer.empty()) {
+	//     // Render the text in the input field
+	//     SDL_Surface* textSurface = TTF_RenderText_Blended(textInput->font, textInput->textBuffer.c_str(), sdlColor);
+	//     if (textSurface) {
+	//         SDL_Texture* textTexture = SDL_CreateTextureFromSurface(renderer, textSurface);
+	//         if (textTexture) {
+	//             SDL_Rect textRect = {textInput->x + 5, textInput->y + 5, textSurface->w, textSurface->h};
+	//             SDL_RenderCopy(renderer, textTexture, nullptr, &textRect);
+	//             SDL_DestroyTexture(textTexture);
+	//         } else {
+	//             std::cerr << "Error: Unable to create texture from text surface." << std::endl;
+	//         }
+	//         SDL_FreeSurface(textSurface);
+	//     } else {
+	//         std::cerr << "Error: Unable to create text surface." << std::endl;
+	//     }
+	// } else if (!textInput->placeholder.empty()) {
+	//     // Render the placeholder text
+	//     SDL_Color placeholderColor = {128, 128, 128, 255}; // Light gray for placeholder
+	//     SDL_Surface* placeholderSurface = TTF_RenderText_Blended(textInput->font, textInput->placeholder.c_str(), placeholderColor);
+	//     if (placeholderSurface) {
+	//         SDL_Texture* placeholderTexture = SDL_CreateTextureFromSurface(renderer, placeholderSurface);
+	//         if (placeholderTexture) {
+	//             SDL_Rect placeholderRect = {textInput->x + 5, textInput->y + 5, placeholderSurface->w, placeholderSurface->h};
+	//             SDL_RenderCopy(renderer, placeholderTexture, nullptr, &placeholderRect);
+	//             SDL_DestroyTexture(placeholderTexture);
+	//         } else {
+	//             std::cerr << "Error: Unable to create texture from placeholder surface." << std::endl;
+	//         }
+	//         SDL_FreeSurface(placeholderSurface);
+	//     } else {
+	//         std::cerr << "Error: Unable to create placeholder surface." << std::endl;
+	//     }
+	// }
+}
diff --git a/mwe/events/src/window.cpp b/mwe/events/src/window.cpp
index 41eb85f..f482b7f 100644
--- a/mwe/events/src/window.cpp
+++ b/mwe/events/src/window.cpp
@@ -1,29 +1,48 @@
 #include "window.h"
-WindowManager::WindowManager() {}
+#include <iostream>
+
+WindowManager::WindowManager() { this->uiRenderer = nullptr; }
+
 WindowManager::~WindowManager() { destroyWindow(); }
-SDL_Renderer * WindowManager::getRenderer() { return renderer; }
 
 bool WindowManager::initWindow() {
 	if (SDL_Init(SDL_INIT_EVERYTHING) != 0) {
-		fprintf(stderr, "Error inititalising SDL.\n");
+		std::cerr << "Error initializing SDL.\n";
 		return false;
 	}
+
 	window = SDL_CreateWindow("SDL Tutorial", SDL_WINDOWPOS_UNDEFINED,
 							  SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH,
 							  SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
 	if (!window) {
-		fprintf(stderr, "Error creating SDL Window. \n");
+		std::cerr << "Error creating SDL Window.\n";
 		return false;
 	}
-	renderer = SDL_CreateRenderer(window, -1, 0);
+
+	renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
 	if (!renderer) {
-		fprintf(stderr, "Error creating SDL renderer. \n");
+		std::cerr << "Error creating SDL renderer.\n";
 		return false;
 	}
+
+	uiRenderer = new UIRenderer(renderer);
 	return true;
 }
+
 void WindowManager::destroyWindow() {
 	SDL_DestroyRenderer(renderer);
 	SDL_DestroyWindow(window);
 	SDL_Quit();
 }
+
+SDL_Renderer * WindowManager::getRenderer() { return renderer; }
+void WindowManager::addUIObject(UIObject * uiObject) {
+	uiObjects.push_back(uiObject);
+}
+
+void WindowManager::renderUIObjects() {
+	for (UIObject * obj : uiObjects) {
+		uiRenderer->render(obj);
+	}
+	SDL_RenderPresent(this->renderer);
+}
diff --git a/mwe/gameloop/include/loopManager.h b/mwe/gameloop/include/loopManager.h
index 1befb69..7d37253 100644
--- a/mwe/gameloop/include/loopManager.h
+++ b/mwe/gameloop/include/loopManager.h
@@ -1,11 +1,11 @@
 #pragma once
-#include "event.h"
 #include "gameObject.h"
 #include "window.h"
 #include <SDL2/SDL.h>
 class LoopManager {
 public:
 	LoopManager();
+	~LoopManager();
 	void setup();
 	void loop();
 
@@ -17,7 +17,7 @@ private:
 	void fixedUpdate();
 	void render();
 	bool gameRunning = false;
-	WindowManager window;
+	WindowManager * window;
 	int timeScale = 1;
 	float accumulator = 0.0;
 	double currentTime;
diff --git a/mwe/gameloop/include/timer.h b/mwe/gameloop/include/timer.h
index 8273746..3c38594 100644
--- a/mwe/gameloop/include/timer.h
+++ b/mwe/gameloop/include/timer.h
@@ -25,7 +25,7 @@ private:
 	double maximumDeltaTime = 0.25;
 	double deltaTime;
 	double frameTargetTime = FPS / 1000;
-	double fixedDeltaTime = 0.01;
+	double fixedDeltaTime = 0.02;
 	double elapsedTime;
 	double elapsedFixedTime;
 	double time;
diff --git a/mwe/gameloop/src/loopManager.cpp b/mwe/gameloop/src/loopManager.cpp
index 0392853..49d65fb 100644
--- a/mwe/gameloop/src/loopManager.cpp
+++ b/mwe/gameloop/src/loopManager.cpp
@@ -1,6 +1,12 @@
 #include "loopManager.h"
 #include "timer.h"
-LoopManager::LoopManager() {}
+LoopManager::LoopManager() { this->window = new WindowManager(); }
+LoopManager::~LoopManager() {
+	for (GameObject * object : this->objectList) {
+		delete object;
+	}
+	delete this->window;
+}
 void LoopManager::processInput() {
 	SDL_Event event;
 	SDL_PollEvent(&event);
@@ -42,14 +48,14 @@ void LoopManager::loop() {
 		timer.enforceFrameRate();
 	}
 
-	window.destroyWindow();
+	window->destroyWindow();
 }
 
 void LoopManager::setup() {
-	gameRunning = window.initWindow();
-	LoopTimer::getInstance().start();
-	LoopTimer::getInstance().setFPS(500);
 
+	LoopTimer::getInstance().start();
+	LoopTimer::getInstance().setFPS(10);
+	this->gameRunning = true;
 	for (int i = 1; i < 3; i++) {
 		GameObject * square
 			= new GameObject("square2", i * 60, i * 60, 20, 20, 0, 0);
@@ -59,7 +65,7 @@ void LoopManager::setup() {
 void LoopManager::render() {
 	fprintf(stderr, "**********render********** \n");
 	if (gameRunning) {
-		window.render(objectList);
+		window->render(objectList);
 	}
 }
 
diff --git a/src/crepe/api/Transform.cpp b/src/crepe/api/Transform.cpp
index 3b218bc..c76bc72 100644
--- a/src/crepe/api/Transform.cpp
+++ b/src/crepe/api/Transform.cpp
@@ -8,7 +8,8 @@
 
 using namespace crepe::api;
 
-Transform::Transform(uint32_t game_id, const Point & point, double rot, double scale)
+Transform::Transform(uint32_t game_id, const Point & point, double rot,
+					 double scale)
 	: Component(game_id), position(point), rotation(rot), scale(scale) {
 	dbg_trace();
 }
diff --git a/src/example/audio_internal.cpp b/src/example/audio_internal.cpp
index f35ad9d..c7dd163 100644
--- a/src/example/audio_internal.cpp
+++ b/src/example/audio_internal.cpp
@@ -4,8 +4,8 @@
  */
 
 #include <crepe/Sound.h>
-#include <crepe/util/log.h>
 #include <crepe/api/Config.h>
+#include <crepe/util/log.h>
 
 #include <thread>
 
@@ -16,7 +16,7 @@ using namespace std::chrono_literals;
 using std::make_unique;
 
 // Unrelated stuff that is not part of this POC
-int _ = [] () {
+int _ = []() {
 	// Show dbg_trace() output
 	auto & cfg = api::Config::get_instance();
 	cfg.log.level = util::LogLevel::TRACE;
@@ -24,8 +24,6 @@ int _ = [] () {
 	return 0; // satisfy compiler
 }();
 
-
-
 int main() {
 	// Load a background track (Ogg Vorbis)
 	auto bgm = Sound("../mwe/audio/bgm.ogg");
diff --git a/src/example/log.cpp b/src/example/log.cpp
index 04ab9cd..75f133c 100644
--- a/src/example/log.cpp
+++ b/src/example/log.cpp
@@ -10,13 +10,13 @@ using namespace crepe;
 using namespace crepe::util;
 
 // unrelated setup code
-int _ = [] () {
+int _ = []() {
 	// make sure all log messages get printed
 	auto & cfg = api::Config::get_instance();
 	cfg.log.level = util::LogLevel::TRACE;
 
 	return 0; // satisfy compiler
-} ();
+}();
 
 int main() {
 	dbg_trace();
diff --git a/src/example/script.cpp b/src/example/script.cpp
index cda9591..5df26e8 100644
--- a/src/example/script.cpp
+++ b/src/example/script.cpp
@@ -18,7 +18,7 @@ using namespace crepe::api;
 using namespace std;
 
 // Unrelated stuff that is not part of this POC
-int _ = [] () {
+int _ = []() {
 	// Show dbg_trace() output
 	auto & cfg = api::Config::get_instance();
 	cfg.log.level = util::LogLevel::TRACE;
@@ -26,8 +26,6 @@ int _ = [] () {
 	return 0; // satisfy compiler
 }();
 
-
-
 // User-defined script:
 class MyScript : public Script {
 	void update() {
@@ -40,7 +38,12 @@ class MyScript : public Script {
 int main() {
 	// Create game object with Transform and BehaviorScript components
 	auto obj = GameObject(0, "name", "tag", 0);
-	obj.add_component<Transform>(Point { .x = 1.2, .y = 3.4, }, 0, 0);
+	obj.add_component<Transform>(
+		Point{
+			.x = 1.2,
+			.y = 3.4,
+		},
+		0, 0);
 	obj.add_component<BehaviorScript>().set_script<MyScript>();
 
 	// Get ScriptSystem singleton instance (this would normally be done from the
@@ -51,4 +54,3 @@ int main() {
 
 	return EXIT_SUCCESS;
 }
-