WeaponVelocity.cpp

Go to the documentation of this file.

////////////////////////////////////////////////////////////////////////////////
//    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/WeaponVelocity.h>
#include <weapons/AccessoryStore.h>

REGISTER_ACCESSORY_SOURCE(WeaponVelocity);

WeaponVelocity::WeaponVelocity() :
        velocityChange_(0), abs_(false)
{

}

WeaponVelocity::~WeaponVelocity()
{

}

bool WeaponVelocity::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;

        if (!accessoryNode->getNamedChild("velocitychange", velocityChange_)) return false;

        accessoryNode->getNamedChild("abs", abs_, false);

        return true;
}

void WeaponVelocity::fireWeapon(ScorchedContext &context,
        WeaponFireContext &weaponContext, FixedVector &position, FixedVector &velocity)
{
        // Add a shot that will fall where the original was aimed
        // but with altered velocity
        FixedVector newVelocity;
        if (abs_)
        {
                newVelocity = velocity.Normalize() * 50 * velocityChange_.getValue(context); 
                aimedWeapon_->fireWeapon(context, weaponContext, position, newVelocity);
        }
        else
        {

                newVelocity = velocity * velocityChange_.getValue(context);
                aimedWeapon_->fireWeapon(context, weaponContext, position, newVelocity);
        }

}

---