RequestManager.java

package com.osroyale.game.world.entity.mob.player.requests;
 
import com.osroyale.net.packet.out.SendMessage;
import com.osroyale.game.world.entity.mob.player.Player;
import com.osroyale.game.world.region.Region;
import com.osroyale.util.Utility;

 
public class RequestManager {

    private Player player;

    private RequestState state = RequestState.NORMAL;

    private RequestType requestType;

    private Player acquaintance;

    public RequestManager(Player player) {
        this.player = player;
    }

    public boolean request(Player other, RequestType type) {
        if (!validate(player) || !validate(other)) {
            return false;
        }
 
        if (!Utility.withinDistance(other, player, Region.VIEW_DISTANCE)) {
            player.send(new SendMessage("Unable to find " + Utility.formatName(other.getName()) + "."));
            return false;
        }
 
        RequestManager otherManager = other.requestManager;
 
        if (state == RequestState.PARTICIPATING || otherManager.state == RequestState.PARTICIPATING) {
            return false;
        }
 
        requestType = type;
        acquaintance = other;
        state = RequestState.REQUESTED;
 
        if (mutualRequest(otherManager)) {
            state = RequestState.PARTICIPATING;
            otherManager.state = RequestState.PARTICIPATING;
            return true;
        }
 
        return false;
    }

    private boolean validate(Player entity) {
        return entity != null && !entity.positionChange;
    }

    private boolean mutualRequest(RequestManager otherManager) {
        boolean otherRequested = otherManager.state == RequestState.REQUESTED;
        boolean sameRequestType = requestType == otherManager.requestType;
        boolean mutualAcquantances = player.equals(otherManager.acquaintance);
        return otherRequested && sameRequestType && mutualAcquantances;
    }

    private void reset() {
        requestType = null;
        acquaintance = null;
        state = RequestState.NORMAL;
    }

    public void close() {
        reset();
    }
 
}