Implement simple camp & hunt AI for enemies

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

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+package com.bartlomiejpluta.demo.ai;
+
+import lombok.*;
+import com.bartlomiejpluta.base.api.map.layer.object.ObjectLayer;
+import com.bartlomiejpluta.base.api.ai.*;
+import com.bartlomiejpluta.base.lib.ai.*;
+
+import com.bartlomiejpluta.demo.entity.Enemy;
+import com.bartlomiejpluta.demo.entity.Character;
+
+@AllArgsConstructor
+public class SimpleSniperAI implements AI {
+	private final Enemy enemy;
+	private Character target;
+	private int range;
+
+	@Override
+	public void nextActivity(ObjectLayer layer, float dt) {
+		var enemyCoords = enemy.getCoordinates();
+		var targetCoords = target.getCoordinates();
+		if(enemy.manhattanDistance(target) <= range && (enemyCoords.x() == targetCoords.x() || enemyCoords.y() == targetCoords.y())) {
+			var direction = enemy.getDirectionTowards(target);
+			enemy.setFaceDirection(direction);
+			enemy.attack();
+		}
+	}
+}