Refactor event system | make Context events-aware | introduce GamePauseEvent

api/src/main/java/com/bartlomiejpluta/base/api/context/Context.java

@@ -4,6 +4,8 @@ import com.bartlomiejpluta.base.api.animation.Animation;
 import com.bartlomiejpluta.base.api.audio.Sound;
 import com.bartlomiejpluta.base.api.camera.Camera;
 import com.bartlomiejpluta.base.api.entity.Entity;
+import com.bartlomiejpluta.base.api.event.Event;
+import com.bartlomiejpluta.base.api.event.EventType;
 import com.bartlomiejpluta.base.api.gui.GUI;
 import com.bartlomiejpluta.base.api.image.Image;
 import com.bartlomiejpluta.base.api.input.Input;
@@ -18,6 +20,7 @@ import com.bartlomiejpluta.base.util.lambda.UncheckedFunction;
 
 import java.sql.Connection;
 import java.sql.SQLException;
+import java.util.function.Consumer;
 
 public interface Context extends Updatable, Renderable, Disposable {
    GameRunner getGameRunner();
@@ -70,6 +73,10 @@ public interface Context extends Updatable, Renderable, Disposable {
 
    boolean togglePause();
 
+   <E extends Event> void addEventListener(EventType<E> type, Consumer<E> listener);
+
+   <E extends Event> void removeEventListener(EventType<E> type, Consumer<E> listener);
+
    void init(Screen screen, Input input, Camera camera);
 
    void input(Input input);

api/src/main/java/com/bartlomiejpluta/base/api/context/GamePauseEvent.java

@@ -0,0 +1,19 @@
+package com.bartlomiejpluta.base.api.context;
+
+import com.bartlomiejpluta.base.api.event.Event;
+import com.bartlomiejpluta.base.api.event.EventType;
+import com.bartlomiejpluta.base.lib.event.BaseEvent;
+import lombok.EqualsAndHashCode;
+import lombok.Value;
+
+@Value
+@EqualsAndHashCode(callSuper = true)
+public class GamePauseEvent extends BaseEvent {
+   public static final EventType<GamePauseEvent> TYPE = new EventType<>("GAME_PAUSE_EVENT");
+   boolean paused;
+
+   @Override
+   public EventType<? extends Event> getType() {
+      return TYPE;
+   }
+}

api/src/main/java/com/bartlomiejpluta/base/api/map/layer/base/Layer.java

@@ -1,11 +1,12 @@
 package com.bartlomiejpluta.base.api.map.layer.base;
 
 import com.bartlomiejpluta.base.api.animation.Animation;
+import com.bartlomiejpluta.base.api.event.Reactive;
 import com.bartlomiejpluta.base.api.map.model.GameMap;
 import com.bartlomiejpluta.base.internal.logic.Updatable;
 import com.bartlomiejpluta.base.internal.render.Renderable;
 
-public interface Layer extends Renderable, Updatable {
+public interface Layer extends Renderable, Updatable, Reactive {
    GameMap getMap();
 
    void pushAnimation(Animation animation);

api/src/main/java/com/bartlomiejpluta/base/api/map/model/GameMap.java

@@ -1,12 +1,13 @@
 package com.bartlomiejpluta.base.api.map.model;
 
+import com.bartlomiejpluta.base.api.event.Reactive;
 import com.bartlomiejpluta.base.api.map.layer.color.ColorLayer;
 import com.bartlomiejpluta.base.api.map.layer.image.ImageLayer;
 import com.bartlomiejpluta.base.api.map.layer.object.ObjectLayer;
 import com.bartlomiejpluta.base.api.map.layer.tile.TileLayer;
 import org.joml.Vector2fc;
 
-public interface GameMap {
+public interface GameMap extends Reactive {
    float getWidth();
 
    float getHeight();

api/src/main/java/com/bartlomiejpluta/base/lib/event/BaseEvent.java

@@ -1,8 +1,10 @@
 package com.bartlomiejpluta.base.lib.event;
 
 import com.bartlomiejpluta.base.api.event.Event;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
 
+@EqualsAndHashCode
 public abstract class BaseEvent implements Event {
 
    @Getter