Add support for enemies' friendly fire

src/main/java/com/bartlomiejpluta/demo/ai/WeaponBasedAI.java

@@ -12,8 +12,8 @@ import com.bartlomiejpluta.demo.world.weapon.*;
 
 public class WeaponBasedAI implements AI {
 	private static final int RANGE = 10;
-	private static final int MIN_RANGE = 4;
-	private static final int MAX_RANGE = 8;
+	private static final int MIN_RANGE = 3;
+	private static final int MAX_RANGE = 12;
 	private final Enemy enemy;
 	private final Character target;
 	private final RunawayAI runawayAI;
@@ -40,6 +40,20 @@ public class WeaponBasedAI implements AI {
 
 	@Override
 	public void nextActivity(ObjectLayer layer, float dt) {
+		var lastAttacker = enemy.getLastAttacker();
+		if(lastAttacker != null && lastAttacker instanceof Character) {
+			var attacker = (Character) lastAttacker;
+			if(attacker.isAlive()) {
+				runawayAI.setCharacter(attacker);
+				meleeAI.setTarget(attacker);
+				archerAI.setTarget(attacker);
+			} else {
+				runawayAI.setCharacter(target);
+				meleeAI.setTarget(target);
+				archerAI.setTarget(target);
+			}
+		}
+
 		if(enemy.getWeapon() == null) {
 			runawayAI.nextActivity(layer, dt);
 		}

src/main/java/com/bartlomiejpluta/demo/entity/Character.java

@@ -5,13 +5,12 @@ import org.slf4j.*;
 import org.joml.Vector2i;
 import com.bartlomiejpluta.base.api.context.Context;
 import com.bartlomiejpluta.base.api.entity.Entity;
-import com.bartlomiejpluta.base.lib.entity.EntityDelegate;
 import com.bartlomiejpluta.base.lib.animation.AnimationRunner;
 
 import com.bartlomiejpluta.demo.runner.DemoRunner;
 import com.bartlomiejpluta.demo.world.weapon.Weapon;
 
-public abstract class Character extends EntityDelegate {
+public abstract class Character extends NamedEntity {
 	private static final Logger log = LoggerFactory.getLogger(Character.class);
 	protected final Context context;
 	protected final DemoRunner runner;
@@ -34,6 +33,9 @@ public abstract class Character extends EntityDelegate {
 	@Setter
 	private Weapon weapon;
 
+	@Getter
+	private NamedEntity lastAttacker;
+
 	public Character(@NonNull Context context, @NonNull Entity entity) {
 		super(entity);
 		this.context = context;
@@ -52,7 +54,9 @@ public abstract class Character extends EntityDelegate {
 		}
 	}
 
-	public void hit(int dmg) {
+	public void hit(NamedEntity source, int dmg) {
+		this.lastAttacker = source;
+
 		if(immortal) {
 			return;
 		}

src/main/java/com/bartlomiejpluta/demo/entity/NamedEntity.java

@@ -0,0 +1,13 @@
+package com.bartlomiejpluta.demo.entity;
+
+import com.bartlomiejpluta.base.api.entity.Entity;
+import com.bartlomiejpluta.base.lib.entity.EntityDelegate;
+
+public abstract class NamedEntity extends EntityDelegate {
+	
+	public NamedEntity(Entity entity) {
+		super(entity);
+	}
+	
+	public abstract String getName();
+}

src/main/java/com/bartlomiejpluta/demo/entity/Player.java

@@ -10,8 +10,8 @@ public class Player extends Character {
 
 	public Player(@NonNull Context context, @NonNull Entity entity) {
 		super(context, entity);
-		this.hp = 100;
-		this.maxHp = 100;
+		this.hp = 500;
+		this.maxHp = 500;
 	}
 
 	public void interact() {

src/main/java/com/bartlomiejpluta/demo/world/weapon/MeleeWeapon.java

@@ -48,7 +48,7 @@ public class MeleeWeapon implements Weapon {
 			if(entity.getCoordinates().equals(facingNeighbour) && entity.isBlocking() && entity instanceof Character) {
 				var character = (Character) entity;
 				var damage = roller.roll();
-				character.hit(damage);
+				character.hit(attacker, damage);
 				animation.run(context, character.getLayer(), character);
 				context.playSound(sound);
 				context.fireEvent(new HitEvent(attacker, character, damage));

src/main/java/com/bartlomiejpluta/demo/world/weapon/RangedWeapon.java

@@ -12,6 +12,7 @@ import com.bartlomiejpluta.base.util.random.DiceRoller;
 
 import com.bartlomiejpluta.base.generated.db.model.RangedWeaponModel;
 import com.bartlomiejpluta.demo.entity.Character;
+import com.bartlomiejpluta.demo.entity.NamedEntity;
 
 import com.bartlomiejpluta.demo.event.HitEvent;
 
@@ -57,12 +58,13 @@ public class RangedWeapon implements Weapon {
 
 	private void onHit(Movable attacker, Entity target) {
 		if(target.isBlocking() && target instanceof Character) {
+			var namedAttacker = (Character) attacker;
 			var character = (Character) target;
 			var damage = dmgRoller.roll();
-			character.hit(damage);
+			character.hit(namedAttacker, damage);
 			punchAnimation.run(context, character.getLayer(), character);
 			context.playSound(punchSound);
-			context.fireEvent(new HitEvent((Character) attacker, character, damage));
+			context.fireEvent(new HitEvent(namedAttacker, character, damage));
 		}
 	}