Implement the Naga class and update some behaviors and effects of other classes

src/main/java/net/rawmod/mineclass/utils/PlayerTimerEffects.java

@@ -0,0 +1,49 @@
+package net.rawmod.mineclass.utils;
+
+import net.rawmod.mineclass.classes.MineClass;
+import net.rawmod.mineclass.classes.MineClassFactory;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.attribute.AttributeInstance;
+import org.bukkit.entity.Player;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import java.util.Optional;
+
+public class PlayerTimerEffects extends BukkitRunnable {
+
+  private final Player player;
+  private boolean inWater;
+
+  public PlayerTimerEffects(Player player) {
+    this.player = player;
+    this.inWater = player.isInWater();
+  }
+
+  @Override
+  public void run() {
+    Optional<MineClass> mineClass = MineClassFactory.getInstance().getRightClass(player);
+    if (mineClass.isPresent() && mineClass.get().getCode().equals("naga")) {
+      if (!player.isInWater()) {
+        player.damage(1);
+
+      }
+      if (player.isInWater() != inWater) {
+        inWater = player.isInWater();
+        mineClass.get().reapplyEffects(player);
+      }
+    }
+    if (mineClass.isPresent() && mineClass.get().getCode().equals("fire_dwarf")) {
+      if (player.getFireTicks() > 0) {
+        PlayerUtils.heal(player, 2);
+        player.addPotionEffect(new PotionEffect(PotionEffectType.SPEED, 40, 3));
+        player.addPotionEffect(new PotionEffect(PotionEffectType.INCREASE_DAMAGE, 40, 1));
+        player.addPotionEffect(new PotionEffect(PotionEffectType.DAMAGE_RESISTANCE, 40, 1));
+      }
+      if (player.isInWater()) {
+        player.damage(1);
+      }
+    }
+  }
+}

src/main/java/net/rawmod/mineclass/utils/PlayerUtils.java

@@ -0,0 +1,14 @@
+package net.rawmod.mineclass.utils;
+
+import org.bukkit.attribute.Attribute;
+import org.bukkit.attribute.AttributeInstance;
+import org.bukkit.entity.Player;
+
+public class PlayerUtils {
+  public static void heal(Player player, double amount) {
+    AttributeInstance maxHealh = player.getAttribute(Attribute.GENERIC_MAX_HEALTH);
+    if (maxHealh != null) {
+      player.setHealth(Math.min(player.getHealth() + amount, maxHealh.getValue()));
+    }
+  }
+}