AIVendor

package de.svdragster.rpg;

import java.util.List;

import net.canarymod.api.ai.AIBase;
import net.canarymod.api.entity.living.EntityLiving;
import net.canarymod.api.entity.living.humanoid.Player;
import net.canarymod.api.world.position.Location;
import net.canarymod.api.world.position.Vector3D;

public class AIVendor implements AIBase {

    private EntityLiving mob = null;
    private Player target = null;
    private Location spawn = null;
    private boolean search = true;
    private boolean speak = true;

    public AIVendor(EntityLiving mob, Location spawn) {
        this.mob = mob;
        this.spawn = spawn;
    }

    @Override
    public boolean continueExecuting() {
        return this.target != null;
    }

    @Override
    public boolean isContinuous() {
        return true;
    }

    @Override
    public void resetTask() {
        this.target = null;
        this.mob.teleportTo(spawn);
        search = true;
        speak = true;
    }

    @Override
    public boolean shouldExecute() {
        if (this.target == null) {
            return this.getTarget();
        }
        return false;
    }

    @Override
    public void startExecuting() {
        if (search) {
            mob.getPathFinder().setPathToLocation(target.getLocation());
            mob.getPathFinder().setSpeed(0.5f);
        }
        Vector3D v = new Vector3D(mob.getLocation());
        if (v.getDistance(spawn) > 20 || !search) {
            mob.getPathFinder().setPathToLocation(spawn);
            mob.getPathFinder().setSpeed(0.5f);
            search = false;
        }
    }

    @Override
    public void updateTask() {
        if (mob.isInWater()) {
            this.resetTask();
        }
        if (target == null) {
            this.resetTask();
            return;
        }
        if (Math.abs(target.getX() - mob.getX()) < 2 && Math.abs(target.getZ() - mob.getZ()) < 2) {
            mob.lookAt(target);
            if (speak) {
                mob.playLivingSound();
                speak = false;
            }
        }
        Vector3D v = new Vector3D(mob.getLocation());
        if (v.getDistance(spawn) < 3 && !search) {
            this.resetTask();
        }
        if (v.getDistance(spawn) > 20 || !search) {
            //mob.getPathFinder().setSpeed(0.5f);
            //mob.getPathFinder().setPathToLocation(spawn);
            search = false;
            resetTask();
        } else {
            mob.getPathFinder().setPathToEntity(target);
        }
    }

    public boolean getTarget() {
        if (search) {
            List<Player> players = mob.getWorld().getPlayerList();
            Vector3D v = new Vector3D(mob.getLocation());
            for (int i=0; i<players.size(); i++) {
                Player t = players.get(i);
                if (v.getDistance(t.getLocation()) < 15) {
                    this.target = t;
                    mob.getPathFinder().setPathToEntity(target);
                    return true;
                }
            }
        }
        this.resetTask();
        return false;
    }

}