WeaponSelectPosition.cpp

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////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2009
//
//    This file is part of Scorched3D.
//
//    Scorched3D 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 of the License, or
//    (at your option) any later version.
//
//    Scorched3D is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with Scorched3D; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////

#include <weapons/WeaponSelectPosition.h>
#include <weapons/AccessoryStore.h>
#include <tank/TankContainer.h>
#include <tank/TankState.h>
#include <tank/TankPosition.h>
#include <landscapemap/LandscapeMaps.h>

REGISTER_ACCESSORY_SOURCE(WeaponSelectPosition);

WeaponSelectPosition::WeaponSelectPosition()
{

}

WeaponSelectPosition::~WeaponSelectPosition()
{

}

bool WeaponSelectPosition::parseXML(AccessoryCreateContext &context, XMLNode *accessoryNode)
{
        if (!Weapon::parseXML(context, accessoryNode)) return false;

        // Get the next weapon
        XMLNode *subNode = 0;
        if (!accessoryNode->getNamedChild("aimedweapon", subNode)) return false;

        // Check next weapon is correct type
        AccessoryPart *accessory = context.getAccessoryStore().
                createAccessoryPart(context, parent_, subNode);
        if (!accessory || accessory->getType() != AccessoryPart::AccessoryWeapon)
        {
                return subNode->returnError("Failed to find sub weapon, not a weapon");
        }
        aimedWeapon_ = (Weapon*) accessory;

        return true;
}

void WeaponSelectPosition::fireWeapon(ScorchedContext &context,
        WeaponFireContext &weaponContext, FixedVector &position, FixedVector &velocity)
{
        // This weapon re-centers the current shot on the user selected position
        // This can be used for firing from a moving tank

        Tank *tank = context.getTankContainer().getTankById(weaponContext.getPlayerId());
        if (tank && tank->getState().getState() == TankState::sNormal)
        {
                FixedVector newPosition;
                newPosition[0] = fixed(tank->getPosition().getSelectPositionX());
                newPosition[1] = fixed(tank->getPosition().getSelectPositionY());
                newPosition[2] = context.getLandscapeMaps().getGroundMaps().getHeight(
                        tank->getPosition().getSelectPositionX(),
                        tank->getPosition().getSelectPositionY());

                aimedWeapon_->fireWeapon(context, weaponContext, newPosition, velocity);
        }
}

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