aion-server 4.8

package ai.siege;

import com.aionemu.gameserver.ai.AILogger;
import com.aionemu.gameserver.ai.AIName;
import com.aionemu.gameserver.ai.AIState;
import com.aionemu.gameserver.ai.AITemplate;
import com.aionemu.gameserver.ai.handler.FollowEventHandler;
import com.aionemu.gameserver.ai.poll.AIQuestion;
import com.aionemu.gameserver.controllers.SiegeWeaponController;
import com.aionemu.gameserver.dataholders.DataManager;
import com.aionemu.gameserver.model.gameobjects.Creature;
import com.aionemu.gameserver.model.gameobjects.Summon;
import com.aionemu.gameserver.model.summons.SummonMode;
import com.aionemu.gameserver.model.templates.npcskill.NpcSkillTemplate;
import com.aionemu.gameserver.model.templates.npcskill.NpcSkillTemplates;
import com.aionemu.gameserver.services.summons.SummonsService;

/**
 * @author xTz
 */
@AIName("siege_weapon")
public class SiegeWeaponAI extends AITemplate<Summon> {

	private long lastAttackTime;
	private int skill;
	private int skillLvl;
	private int duration;

	public SiegeWeaponAI(Summon owner) {
		super(owner);
	}

	@Override
	protected void handleSpawned() {
		this.setStateIfNot(AIState.IDLE);
		SummonsService.doMode(SummonMode.GUARD, getOwner());
		NpcSkillTemplate skillTemplate = getNpcSkillTemplates().getNpcSkills().getFirst();
		skill = skillTemplate.getSkillId();
		skillLvl = skillTemplate.getSkillLevel();
		duration = DataManager.SKILL_DATA.getSkillTemplate(skill).getDuration();
	}

	@Override
	protected void handleFollowMe(Creature creature) {
		this.setStateIfNot(AIState.FOLLOWING);
	}

	@Override
	protected void handleStopFollowMe(Creature creature) {
		this.setStateIfNot(AIState.IDLE);
		this.getOwner().getMoveController().abortMove();
	}

	@Override
	protected void handleTargetTooFar() {
		getOwner().getMoveController().moveToDestination();
	}

	@Override
	protected void handleMoveArrived() {
		this.getOwner().getController().onMove();
		this.getOwner().getMoveController().abortMove();
	}

	@Override
	protected void handleMoveValidate() {
		getOwner().getController().onMove();
		getOwner().getMoveController().moveToTargetObject();
	}

	private NpcSkillTemplates getNpcSkillTemplates() {
		return ((SiegeWeaponController) getOwner().getController()).getNpcSkillTemplates();
	}

	@Override
	protected void handleAttack(Creature creature) {
		if (creature == null || getOwner().getMode() != SummonMode.ATTACK)
			return;
		if (getOwner().getController() instanceof SiegeWeaponController && ((SiegeWeaponController) getOwner().getController()).isValidTarget(creature)) {
			if (System.currentTimeMillis() - lastAttackTime > duration + 2000) {
				lastAttackTime = System.currentTimeMillis();
				getOwner().getController().useSkill(skill, skillLvl);
			}
		}
	}

	@Override
	public boolean isDestinationReached() {
		AIState state = getState();
		if (state == AIState.FOLLOWING) {
			return FollowEventHandler.isInRange(this, getOwner().getTarget());
		} else {
			AILogger.info(this, "[siege_weapon] calling destinationReached with unhandled state: " + state);
		}
		return true;
	}

		@Override
		public boolean ask(AIQuestion question) {
				return switch (question) {
						case IS_IMMUNE_TO_ABNORMAL_STATES -> true;
						default -> super.ask(question);
				};
		}
}