WeaponLeapFrog.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/WeaponLeapFrog.h>
#include <weapons/AccessoryStore.h>
#include <landscapemap/LandscapeMaps.h>
#include <landscapemap/HeightMap.h>

REGISTER_ACCESSORY_SOURCE(WeaponLeapFrog);

WeaponLeapFrog::WeaponLeapFrog():  
        collisionAction_(0), bounce_(fixed(true, 6000))
{

}

WeaponLeapFrog::~WeaponLeapFrog()
{

}

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

        // Get the next weapon
        XMLNode *subNode = 0;
        if (!accessoryNode->getNamedChild("collisionaction", 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");
        }
        collisionAction_ = (Weapon*) accessory;

        // Get the bounce
        if (!accessoryNode->getNamedChild("bounce", bounce_)) return false;

        return true;
}

void WeaponLeapFrog::fireWeapon(ScorchedContext &context,
        WeaponFireContext &weaponContext, FixedVector &position, FixedVector &velocity)
{
        FixedVector newVelocity = velocity * bounce_.getValue(context);
        if (newVelocity[2] < 0) newVelocity[2] *= -1;

        FixedVector newPosition = position;
        fixed minHeight = context.getLandscapeMaps().getGroundMaps().getInterpHeight(
                position[0], position[1]);

        if (position[2] < minHeight + fixed(true, 7000))
        {
                // Make sure position is not fired underground
                if (minHeight - position[2] > fixed(true, 6500)) // Give room for shields as well
                {
                }
                else
                {
                        newPosition[2] = minHeight + fixed(true, 7000);
                }
        }

        collisionAction_->fireWeapon(context, weaponContext, newPosition, newVelocity);
}

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