feat: Enemies dropping items

src/main/java/cz/jzitnik/game/mobs/HittableMob.java

@@ -30,7 +30,8 @@ import java.util.concurrent.TimeUnit;
 @Slf4j
 public abstract class HittableMob extends Mob {
     public abstract void onKilled();
-    private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
+
+    private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
     protected int health;
     private ScheduledFuture<?> currentTimeoutHitAnimation = null;
 
@@ -58,7 +59,7 @@ public abstract class HittableMob extends Mob {
     }
 
     @Override
-    public void interact(DependencyManager dm) {
+    public final void interact(DependencyManager dm) {
         dm.inject(this);
 
         health -= gameState.getPlayer().getDamageDeal();

src/main/java/cz/jzitnik/game/mobs/HittableMobDrops.java

@@ -0,0 +1,82 @@
+package cz.jzitnik.game.mobs;
+
+import cz.jzitnik.annotations.injectors.InjectDependency;
+import cz.jzitnik.annotations.injectors.InjectState;
+import cz.jzitnik.events.DroppedItemRerender;
+import cz.jzitnik.events.InventoryRerender;
+import cz.jzitnik.game.GameRoom;
+import cz.jzitnik.game.GameState;
+import cz.jzitnik.game.Player;
+import cz.jzitnik.game.items.GameItem;
+import cz.jzitnik.game.objects.DroppedItem;
+import cz.jzitnik.game.utils.RoomCords;
+import cz.jzitnik.utils.events.Event;
+import cz.jzitnik.utils.events.EventManager;
+import cz.jzitnik.utils.roomtasks.RoomTask;
+
+import java.awt.image.BufferedImage;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.function.Supplier;
+
+public abstract class HittableMobDrops extends HittableMob {
+    @InjectState
+    private GameState gameState;
+
+    @InjectDependency
+    private EventManager eventManager;
+
+    private final Supplier<GameItem[]> itemDropSupplier;
+
+    public HittableMobDrops(BufferedImage texture, RoomTask task, RoomCords cords, int initialHealth, Supplier<GameItem[]> itemDropSupplier) {
+        super(texture, task, cords, initialHealth);
+        this.itemDropSupplier = itemDropSupplier;
+    }
+
+    public HittableMobDrops(Supplier<GameItem> itemDropSupplier, BufferedImage texture, RoomTask task, RoomCords cords, int initialHealth) {
+        super(texture, task, cords, initialHealth);
+        this.itemDropSupplier = () -> new GameItem[]{
+                itemDropSupplier.get()
+        };
+    }
+
+    private static final int DROP_ITEM_ON_GROUND_RADIUS = 30;
+
+    @Override
+    public final void onKilled() {
+        GameItem[] items = itemDropSupplier.get();
+        boolean addedIntoInventory = false;
+        Player player = gameState.getPlayer();
+        RoomCords enemyCords = getCords();
+        BufferedImage enemyTexture = getTexture();
+        GameRoom currentRoom = gameState.getCurrentRoom();
+
+        int roomX = enemyCords.getX() + enemyTexture.getWidth() / 2;
+        int roomY = enemyCords.getY() + enemyTexture.getHeight() / 2;
+
+        List<Event> events = new ArrayList<>();
+
+        for (GameItem item : items) {
+            boolean added = player.addItem(item);
+
+            if (added) {
+                if (!addedIntoInventory) {
+                    addedIntoInventory = true;
+                    events.add(new InventoryRerender());
+                }
+            } else {
+                double angle = ThreadLocalRandom.current().nextDouble(0, Math.PI * 2);
+                double radius = ThreadLocalRandom.current().nextDouble(0, DROP_ITEM_ON_GROUND_RADIUS);
+                int randomX = roomX + (int) (Math.cos(angle) * radius);
+                int randomY = roomY + (int) (Math.sin(angle) * radius);
+                RoomCords itemCords = new RoomCords(randomX, randomY);
+                DroppedItem droppedItem = new DroppedItem(currentRoom, itemCords, item);
+                currentRoom.getDroppedItems().add(droppedItem);
+                events.add(new DroppedItemRerender(droppedItem));
+            }
+        }
+
+        eventManager.emitEvent(events);
+    }
+}

src/main/java/cz/jzitnik/game/objects/DroppedItem.java

@@ -35,12 +35,14 @@ public final class DroppedItem implements Selectable, Serializable {
     public void interact(DependencyManager dm) {
         StateManager stateManager = dm.getDependencyOrThrow(StateManager.class);
         GameState gameState = stateManager.getOrThrow(GameState.class);
+
+        if (!gameState.getPlayer().addItem(item)) {
+            return;
+        }
+
         EventManager eventManager = dm.getDependencyOrThrow(EventManager.class);
         var currentRoom = gameState.getCurrentRoom();
-
         currentRoom.getDroppedItems().remove(this);
-        gameState.getPlayer().addItem(item);
-
         eventManager.emitEvent(new InventoryRerender());
         eventManager.emitEvent(new DroppedItemRerender(this));
     }

src/main/java/cz/jzitnik/game/setup/enemies/Zombie.java

@@ -1,26 +1,21 @@
 package cz.jzitnik.game.setup.enemies;
 
 import cz.jzitnik.game.ResourceManager;
-import cz.jzitnik.game.mobs.HittableMob;
+import cz.jzitnik.game.mobs.HittableMobDrops;
 import cz.jzitnik.game.mobs.tasks.EnemyPlayerHittingTask;
 import cz.jzitnik.game.mobs.tasks.MobFollowingPlayerTask;
+import cz.jzitnik.game.setup.items.Apple;
 import cz.jzitnik.game.utils.RoomCords;
 import cz.jzitnik.utils.roomtasks.RoomTask;
 import lombok.extern.slf4j.Slf4j;
 
 @Slf4j
-public class Zombie extends HittableMob {
+public class Zombie extends HittableMobDrops {
-
     public Zombie(ResourceManager resourceManager, RoomCords cords) {
-        super(resourceManager.getResource(ResourceManager.Resource.PLAYER_FRONT), null, cords, 10);
+        super(() -> new Apple(resourceManager), resourceManager.getResource(ResourceManager.Resource.PLAYER_FRONT), null, cords, 10);
         setTasks(new RoomTask[]{
                 new MobFollowingPlayerTask(this, 1, 100),
                 new EnemyPlayerHittingTask(this, 500, 15, () -> 5)
         });
     }
-
-    @Override
-    public void onKilled() {
-        log.debug("Zombie killed");
-    }
 }

src/main/java/cz/jzitnik/screens/VideoPlayScreen.java

@@ -41,7 +41,7 @@ public abstract class VideoPlayScreen extends Screen {
         }
     }
 
-    protected void render() {
+    protected final void render() {
         File tempVideo = null;
         try (InputStream resource = resourceManager.getResourceAsStream(videoPath)) {
 

src/main/java/cz/jzitnik/ui/Inventory.java

@@ -352,7 +352,7 @@ public class Inventory {
                     int topR = (pixel >> 16) & 0xff;
                     int topG = (pixel >> 8) & 0xff;
                     int topB = pixel & 0xff;
-                    float topOpacity = 0.80f;
+                    float topOpacity = 0.60f;
                     int bottomR = bottomPixel.getColor().getRed();
                     int bottomG = bottomPixel.getColor().getGreen();
                     int bottomB = bottomPixel.getColor().getBlue();

src/main/java/cz/jzitnik/utils/events/EventManager.java

@@ -12,6 +12,7 @@ import org.reflections.Reflections;
 
 import java.lang.reflect.InvocationTargetException;
 import java.util.HashMap;
+import java.util.List;
 import java.util.concurrent.*;
 
 @Slf4j
@@ -44,6 +45,10 @@ public class EventManager extends Thread {
         eventQueue.add(new EventRecord(events));
     }
 
+    public void emitEvent(List<Event> events) {
+        eventQueue.add(new EventRecord(events.toArray(new Event[]{})));
+    }
+
     public void emitEvent(Event[] events, Runnable callback) {
         eventQueue.add(new EventRecord(events, callback));
     }