/*
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2007 orx

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   ### File Specific:
   main-programmer: Fabian 'x3n' Landau
   co-programmer:
*/

#include "util/loading/load_param.h"
#include "util/loading/factory.h"
#include "mover_trigger_approach.h"
#include "debug.h"

ObjectListDefinition(ApproachTrigger);
CREATE_FACTORY(ApproachTrigger);


ApproachTrigger::ApproachTrigger(const TiXmlElement* root)
{
    PRINTF(0)("13_1 ApproachTrigger %p created\n", this);
    this->registerObject(this, ApproachTrigger::_objectList);
    this->toList(OM_ENVIRON);

    this->onlyHumans = false;
    this->onlyNPCs =  false;
    this->radius = 0;
    this->distanceX = 0;
    this->distanceY = 0;
    this->distanceZ = 0;

    if (root != NULL)
        this->loadParams(root);

    this->init_post_params();
}

void ApproachTrigger::loadParams(const TiXmlElement* root)
{
    PRINTF(0)("13_2 ApproachTrigger loadParams\n", this);
    MoverTrigger::loadParams(root);

    LoadParam(root, "radius", this, ApproachTrigger, setRadius)
        .describe("The radius wherein the player releases the trigger.")
        .defaultValues(0);
    LoadParam(root, "distance", this, ApproachTrigger, setDistance)
        .describe("The distance of all axes wherein the player releases the trigger.")
        .defaultValues(0, 0, 0);
    LoadParam(root, "onlyHumans", this, ApproachTrigger, setOnlyHumans)
        .describe("Only human players can release the trigger.")
        .defaultValues(false);
    LoadParam(root, "onlyNPCs", this, ApproachTrigger, setOnlyNPCs)
        .describe("Only NPCs can release the trigger.")
        .defaultValues(false);
}

#include "playable.h"
#include "../npcs/generic_npc.h"

bool ApproachTrigger::checkIsTriggered()
{
    WorldEntity* entity;
    float distance;

    // for all players
    if (!this->onlyNPCs)
    {
        for (ObjectList<Playable>::const_iterator it = Playable::objectList().begin();
            it != Playable::objectList().end();
            ++it)
        {
            entity = (*it);
            distance = (this->getAbsCoor() - entity->getAbsCoor()).len();
            if (distance <= this->radius
                || (fabs(this->getAbsCoor().x - entity->getAbsCoor().x) <= this->distanceX
                    && fabs(this->getAbsCoor().y - entity->getAbsCoor().y) <= this->distanceY
                    && fabs(this->getAbsCoor().z - entity->getAbsCoor().z) <= this->distanceZ))
                return true;
        }
    }

    // for all npcs
    if (!this->onlyHumans)
    {
        for (ObjectList<GenericNPC>::const_iterator it = GenericNPC::objectList().begin();
            it != GenericNPC::objectList().end();
            ++it)
        {
            entity = (*it);
            distance = (this->getAbsCoor() - entity->getAbsCoor()).len();
            if (distance <= this->radius
                || (fabs(this->getAbsCoor().x - entity->getAbsCoor().x) <= this->distanceX
                    && fabs(this->getAbsCoor().y - entity->getAbsCoor().y) <= this->distanceY
                    && fabs(this->getAbsCoor().z - entity->getAbsCoor().z) <= this->distanceZ))
                return true;
        }
    }
    
    return false;
}