merge master

14 files changed, 158 insertions, 78 deletions

diff --git a/src/crepe/api/BoxCollider.cpp b/src/crepe/api/BoxCollider.cpp
index c097a24..a893d41 100644
--- a/src/crepe/api/BoxCollider.cpp
+++ b/src/crepe/api/BoxCollider.cpp
@@ -4,7 +4,7 @@
 
 using namespace crepe;
 
-BoxCollider::BoxCollider(game_object_id_t game_object_id, const vec2 & offset,
-						 const vec2 & dimensions)
+BoxCollider::BoxCollider(game_object_id_t game_object_id, const vec2 & dimensions,
+						 const vec2 & offset)
 	: Collider(game_object_id, offset),
 	  dimensions(dimensions) {}
diff --git a/src/crepe/api/BoxCollider.h b/src/crepe/api/BoxCollider.h
index 1ac4d46..d643e7f 100644
--- a/src/crepe/api/BoxCollider.h
+++ b/src/crepe/api/BoxCollider.h
@@ -13,7 +13,8 @@ namespace crepe {
  */
 class BoxCollider : public Collider {
 public:
-	BoxCollider(game_object_id_t game_object_id, const vec2 & offset, const vec2 & dimensions);
+	BoxCollider(game_object_id_t game_object_id, const vec2 & dimensions,
+				const vec2 & offset = {0, 0});
 
 	//! Width and height of the box collider
 	vec2 dimensions;
diff --git a/src/crepe/api/Button.cpp b/src/crepe/api/Button.cpp
index 76f74f0..305922c 100644
--- a/src/crepe/api/Button.cpp
+++ b/src/crepe/api/Button.cpp
@@ -3,9 +3,8 @@
 namespace crepe {
 
 Button::Button(game_object_id_t id, const vec2 & dimensions, const vec2 & offset,
-			   const std::function<void()> & on_click, bool is_toggle)
+			   const std::function<void()> & on_click)
 	: UIObject(id, dimensions, offset),
-	  is_toggle(is_toggle),
 	  on_click(on_click) {}
 
 } // namespace crepe
diff --git a/src/crepe/api/Button.h b/src/crepe/api/Button.h
index 61b18d7..08f5dec 100644
--- a/src/crepe/api/Button.h
+++ b/src/crepe/api/Button.h
@@ -15,19 +15,11 @@ public:
 	 * \param id The unique ID of the game object associated with this button.
 	 * \param dimensions The width and height of the UIObject
 	 * \param offset The offset relative this GameObjects Transform
-	 * \param is_toggle Optional flag to indicate if the button is a toggle button. Defaults to false.
 	 * \param on_click callback function that will be invoked when the button is clicked.
 	 */
 	Button(game_object_id_t id, const vec2 & dimensions, const vec2 & offset,
-		   const std::function<void()> & on_click, bool is_toggle = false);
+		   const std::function<void()> & on_click);
 
-	/**
-	 * \brief Indicates if the button is a toggle button (can be pressed and released).
-	 *
-	 * A toggle button allows for a pressed/released state, whereas a regular button
-	 * typically only has an on-click state.
-	 */
-	bool is_toggle = false;
 	// TODO: create separate toggle button class
 	/**
 	 * \brief The callback function to be executed when the button is clicked.
@@ -56,8 +48,6 @@ public:
 private:
 	//! friend relation for is_pressed and hover variables
 	friend class InputSystem;
-	//! Indicates whether the toggle button is pressed
-	bool is_pressed = false;
 	//! Indicates whether the mouse is currently hovering over the button
 	bool hover = false;
 
diff --git a/src/crepe/api/CircleCollider.cpp b/src/crepe/api/CircleCollider.cpp
index a4271e9..90ab5e7 100644
--- a/src/crepe/api/CircleCollider.cpp
+++ b/src/crepe/api/CircleCollider.cpp
@@ -2,7 +2,7 @@
 
 using namespace crepe;
 
-CircleCollider::CircleCollider(game_object_id_t game_object_id, const vec2 & offset,
-							   float radius)
+CircleCollider::CircleCollider(game_object_id_t game_object_id, float radius,
+							   const vec2 & offset)
 	: Collider(game_object_id, offset),
 	  radius(radius) {}
diff --git a/src/crepe/api/CircleCollider.h b/src/crepe/api/CircleCollider.h
index c7bf66e..22da836 100644
--- a/src/crepe/api/CircleCollider.h
+++ b/src/crepe/api/CircleCollider.h
@@ -13,7 +13,8 @@ namespace crepe {
  */
 class CircleCollider : public Collider {
 public:
-	CircleCollider(game_object_id_t game_object_id, const vec2 & offset, float radius);
+	CircleCollider(game_object_id_t game_object_id, float radius,
+				   const vec2 & offset = {0, 0});
 
 	//! Radius of the circle collider.
 	float radius;
diff --git a/src/crepe/api/Config.h b/src/crepe/api/Config.h
index ca2d3f1..ed1cf38 100644
--- a/src/crepe/api/Config.h
+++ b/src/crepe/api/Config.h
@@ -76,6 +76,11 @@ struct Config final {
 		 */
 		std::string root_pattern = ".crepe-root";
 	} asset;
+	//! Configuration for click tolerance.
+	struct {
+		//! The maximum number of pixels the mouse can move between MouseDown and MouseUp events to be considered a click.
+		int click_tolerance = 5;
+	} input;
 
 	//! Audio system settings
 	struct {
diff --git a/src/crepe/api/Event.h b/src/crepe/api/Event.h
index f2f3daf..73bf461 100644
--- a/src/crepe/api/Event.h
+++ b/src/crepe/api/Event.h
@@ -3,7 +3,8 @@
 
 #include <string>
 
-#include "KeyCodes.h"
+#include "api/KeyCodes.h"
+#include "types.h"
 
 namespace crepe {
 
@@ -38,11 +39,8 @@ 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 in world coordinates (game units).
+	vec2 mouse_pos = {0, 0};
 
 	//! The mouse button that was pressed.
 	MouseButton button = MouseButton::NONE;
@@ -53,11 +51,8 @@ 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 in world coordinates (game units).
+	vec2 mouse_pos = {0, 0};
 
 	//! The mouse button that was clicked.
 	MouseButton button = MouseButton::NONE;
@@ -68,11 +63,8 @@ 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 in world coordinates (game units).
+	vec2 mouse_pos = {0, 0};
 
 	//! The mouse button that was released.
 	MouseButton button = MouseButton::NONE;
@@ -83,17 +75,10 @@ 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;
+	//! mouse position in world coordinates (game units).
+	vec2 mouse_pos = {0, 0};
+	//! The change in mouse position relative to the last position (in pixels).
+	ivec2 mouse_delta = {0, 0};
 };
 
 /**
@@ -101,12 +86,8 @@ 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 in world coordinates (game units) when the scroll happened.
+	vec2 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 +108,55 @@ 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/KeyCodes.h b/src/crepe/api/KeyCodes.h
index fcfc080..1b9573a 100644
--- a/src/crepe/api/KeyCodes.h
+++ b/src/crepe/api/KeyCodes.h
@@ -1,5 +1,9 @@
 #pragma once
+
+#include <unordered_map>
+
 namespace crepe {
+
 //! Enumeration for mouse button inputs, including standard and extended buttons.
 enum class MouseButton {
 	NONE = 0, //!< No mouse button input.
@@ -151,4 +155,6 @@ enum class Keycode {
 	/// \}
 	MENU = 348, //!< Menu key.
 };
+//! Typedef for keyboard state.
+typedef std::unordered_map<Keycode, bool> keyboard_state_t;
 } // namespace crepe
diff --git a/src/crepe/api/ParticleEmitter.cpp b/src/crepe/api/ParticleEmitter.cpp
index a9c5cf6..9a70334 100644
--- a/src/crepe/api/ParticleEmitter.cpp
+++ b/src/crepe/api/ParticleEmitter.cpp
@@ -1,13 +1,16 @@
 #include "ParticleEmitter.h"
+#include "api/Sprite.h"
 
 using namespace crepe;
 using namespace std;
 
-ParticleEmitter::ParticleEmitter(game_object_id_t game_object_id, const Data & data)
+ParticleEmitter::ParticleEmitter(game_object_id_t game_object_id, const Sprite & sprite,
+								 const Data & data)
 	: Component(game_object_id),
+	  sprite(sprite),
 	  data(data) {
 	for (size_t i = 0; i < this->data.max_particles; i++) {
-		this->data.particles.emplace_back();
+		this->particles.emplace_back();
 	}
 }
 
@@ -20,6 +23,6 @@ void ParticleEmitter::restore(const Component & snapshot) {
 }
 
 ParticleEmitter & ParticleEmitter::operator=(const ParticleEmitter & other) {
-	data.particles = other.data.particles;
+	this->particles = other.particles;
 	return *this;
 }
diff --git a/src/crepe/api/ParticleEmitter.h b/src/crepe/api/ParticleEmitter.h
index 5f563de..1edd2b5 100644
--- a/src/crepe/api/ParticleEmitter.h
+++ b/src/crepe/api/ParticleEmitter.h
@@ -1,7 +1,11 @@
 #pragma once
 
+#include <cmath>
 #include <vector>
 
+#include "system/ParticleSystem.h"
+#include "system/RenderSystem.h"
+
 #include "Component.h"
 #include "Particle.h"
 #include "types.h"
@@ -26,15 +30,18 @@ public:
 	 */
 	struct Boundary {
 		//! boundary width (midpoint is emitter location)
-		double width = 0.0;
+		float width = INFINITY;
 		//! boundary height (midpoint is emitter location)
-		double height = 0.0;
+		float height = INFINITY;
 		//! boundary offset from particle emitter location
 		vec2 offset;
 		//! reset on exit or stop velocity and set max postion
 		bool reset_on_exit = false;
 	};
 
+	//! sprite reference of displayed sprite
+	const Sprite & sprite;
+
 	/**
 	 * \brief Holds parameters that control particle emission.
 	 *
@@ -42,32 +49,28 @@ public:
 	 * and the sprite used for rendering particles.
 	 */
 	struct Data {
-		//! position of the emitter
-		vec2 position;
+		//! offset of the emitter relative to transform
+		vec2 offset;
 		//! maximum number of particles
-		const unsigned int max_particles = 0;
-		//! rate of particle emission per update (Lowest value = 0.001 any lower is ignored)
-		double emission_rate = 0;
+		const unsigned int max_particles = 256;
+		//! rate of particle emission per second
+		float emission_rate = 50;
 		//! min speed of the particles
-		double min_speed = 0;
+		float min_speed = 100;
 		//! min speed of the particles
-		double max_speed = 0;
+		float max_speed = 100;
 		//! min angle of particle emission
-		double min_angle = 0;
+		float min_angle = 0;
 		//! max angle of particle emission
-		double max_angle = 0;
-		//! begin Lifespan of particle (only visual)
-		double begin_lifespan = 0.0;
-		//! end Lifespan of particle
-		double end_lifespan = 0.0;
+		float max_angle = 0;
+		//! begin Lifespan of particle in seconds (only visual)
+		float begin_lifespan = 0.0;
+		//! end Lifespan of particle in seconds
+		float end_lifespan = 10.0;
 		//! force over time (physics)
 		vec2 force_over_time;
 		//! particle boundary
 		Boundary boundary;
-		//! collection of particles
-		std::vector<Particle> particles;
-		//! sprite reference
-		const Sprite & sprite;
 	};
 
 public:
@@ -75,7 +78,7 @@ public:
 	 * \param game_object_id  Identifier for the game object using this emitter.
 	 * \param data            Configuration data defining particle properties.
 	 */
-	ParticleEmitter(game_object_id_t game_object_id, const Data & data);
+	ParticleEmitter(game_object_id_t game_object_id, const Sprite & sprite, const Data & data);
 
 public:
 	//! Configuration data for particle emission settings.
@@ -86,6 +89,16 @@ protected:
 	ParticleEmitter(const ParticleEmitter &) = default;
 	virtual void restore(const Component & snapshot);
 	virtual ParticleEmitter & operator=(const ParticleEmitter &);
+
+private:
+	//! Only ParticleSystem can move and read particles
+	friend ParticleSystem;
+	//! Only RenderSystem can read particles
+	friend RenderSystem;
+	//! Saves time left over from last update event.
+	float spawn_accumulator = 0;
+	//! collection of particles
+	std::vector<Particle> particles;
 };
 
 } // namespace crepe
diff --git a/src/crepe/api/Rigidbody.h b/src/crepe/api/Rigidbody.h
index b08c8db..6900295 100644
--- a/src/crepe/api/Rigidbody.h
+++ b/src/crepe/api/Rigidbody.h
@@ -139,7 +139,7 @@ public:
 		 * Each element represents a layer ID, and the GameObject will only detect
 		 * collisions with other GameObjects that belong to these layers.
 		 */
-		std::set<int> collision_layers;
+		std::set<int> collision_layers = {0};
 	};
 
 public:
diff --git a/src/crepe/api/Script.cpp b/src/crepe/api/Script.cpp
index 34e7908..ee76011 100644
--- a/src/crepe/api/Script.cpp
+++ b/src/crepe/api/Script.cpp
@@ -1,7 +1,7 @@
 #include <string>
 
+#include "../facade/SDLContext.h"
 #include "../manager/SceneManager.h"
-
 #include "Script.h"
 
 using namespace crepe;
@@ -45,3 +45,16 @@ void Script::replay::release(recording_t recording) {
 	ReplayManager & mgr = this->mediator->replay_manager;
 	return mgr.release(recording);
 }
+
+const keyboard_state_t & Script::get_keyboard_state() const {
+	SDLContext & sdl_context = this->mediator->sdl_context;
+	return sdl_context.get_keyboard_state();
+}
+
+bool Script::get_key_state(Keycode key) const noexcept {
+	try {
+		return this->get_keyboard_state().at(key);
+	} catch (...) {
+		return false;
+	}
+}
diff --git a/src/crepe/api/Script.h b/src/crepe/api/Script.h
index 6536fa4..2750df0 100644
--- a/src/crepe/api/Script.h
+++ b/src/crepe/api/Script.h
@@ -2,6 +2,7 @@
 
 #include <vector>
 
+#include "../api/KeyCodes.h"
 #include "../manager/EventManager.h"
 #include "../manager/Mediator.h"
 #include "../manager/ReplayManager.h"
@@ -157,7 +158,23 @@ protected:
 		replay(OptionalRef<Mediator> & mediator) : mediator(mediator) {}
 		friend class Script;
 	} replay{mediator};
-	//! \}
+
+	/**
+	 * \brief Utility function to retrieve the keyboard state
+	 * \see SDLContext::get_keyboard_state
+	 * 
+	 * \return current keyboard state map with Keycode as key and bool as value(true = pressed, false = not pressed)
+	 * 
+	 */
+	const keyboard_state_t & get_keyboard_state() const;
+	/**
+	 * \brief Utility function to retrieve a single key state.
+	 * \see SDLContext::get_keyboard_state
+	 * 
+	 * \return Keycode state (true if pressed, false if not pressed).
+	 * 
+	 */
+	bool get_key_state(Keycode key) const noexcept;
 
 private:
 	/**