PlacementShadowDefinition.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 <placement/PlacementShadowDefinition.h>
#include <landscapemap/LandscapeMaps.h>
#include <landscapemap/DeformLandscape.h>
#include <common/Defines.h>
#include <engine/ScorchedContext.h>
#include <image/ImageStore.h>

PlacementShadowDefinition::PlacementShadowDefinition() :
        drawShadow_(true), flattenArea_(0)
{
}

PlacementShadowDefinition::~PlacementShadowDefinition()
{
}

bool PlacementShadowDefinition::readXML(XMLNode *node, const char *base)
{
        node->getNamedChild("drawshadow", drawShadow_, false);
        node->getNamedChild("flattenarea", flattenArea_, false);

        XMLNode *groundMap = 0;
        if (node->getNamedChild("groundmap", groundMap, false))
        {
                if (!groundMap_.initFromNode(base, groundMap)) return false;
        }

        return true;
}

void PlacementShadowDefinition::updateLandscapeHeight(
        ScorchedContext &context,
        FixedVector &position, FixedVector &size)
{
        if (flattenArea_ != 0)
        {
                fixed areaSize = flattenArea_;
                if (areaSize < 0)
                {
                        areaSize = MAX(size[0], size[1])/2 + 1;
                }

                DeformLandscape::flattenArea(context, position, false, areaSize);
        }
}

#ifndef S3D_SERVER

#include <GLEXT/GLImageModifier.h>
void PlacementShadowDefinition::updateLandscapeTexture(
        bool useShadows,
        ScorchedContext &context,
        FixedVector &position, FixedVector &size)
{
        if (groundMap_.imageValid())
        {
                Image *image = ImageStore::instance()->loadImage(groundMap_);
                ImageModifier::addBitmapToLandscape(
                        context,
                        *image,
                        position[0].asFloat(), 
                        position[1].asFloat(),
                        0.25f, 0.25f);
        }

        if (drawShadow_ && useShadows)
        {
                ImageModifier::addCircleToLandscape(
                        context,
                        position[0].asFloat(), 
                        position[1].asFloat(), 
                        MAX(size[0], size[1]).asFloat(), 1.0f);
        }
}

#endif //S3D_SERVER

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