source: GTP/trunk/Lib/Illum/IBRBillboardCloudTrees/OGRE/src/BBCEntityCluster.cpp @ 721

#include <BBCEntityCluster.h>
#include <BBCEntity.h>

namespace BBC {

EntityCluster::EntityCluster(): references(0) // initialize references to 0  
{
}

EntityCluster::~EntityCluster() 
{       
        mEntityClusterDataList.clear();
}

EntityClusterDataPtr EntityCluster::getEntityClusterData(unsigned int value)
{
        return mEntityClusterDataList[value];
}

void EntityCluster::removeEntityClusterData(unsigned int value)
{
        mEntityClusterDataList.erase(mEntityClusterDataList.begin() + value);
}


unsigned int EntityCluster::getNumEntitiesClusterData()
{
        return static_cast<unsigned int>(mEntityClusterDataList.size());
}

void EntityCluster::addEntityClusterData(EntityClusterDataPtr value)
{
        mEntityClusterDataList.push_back(value);
}

void EntityCluster::removeEntitClusterData(unsigned int value)
{
        mEntityClusterDataList.erase(mEntityClusterDataList.begin()+value);
}

EntityPtr EntityCluster::getEntity() 
{
        return mEntity;
}

void EntityCluster::setEntity(EntityPtr value) {
        mEntity = value;
}

unsigned int EntityCluster::getBillboardHandle() {
        return mBillboardHandle;
}

void EntityCluster::setBillboardHandle(unsigned int value) {
        mBillboardHandle = value;
}

void EntityCluster::setEntityDistribution(EntityDistributionPtr value)
{
        mEntityDistribution = value;
}

EntityDistributionPtr EntityCluster::getEntityDistribution()
{
        return mEntityDistribution;
}

void EntityCluster::generateEntityCluster() 
{
        mEntity = BBC::EntityPtr(new BBC::Entity());

        mEntity->getSubEntity(0)->addTextureCoordSet(2);
        Ogre::Vector3 indicesOffset = Ogre::Vector3::ZERO;

        mEntity->getSubEntity(0)->enableVertexColours(true);

        float fRed = Ogre::Math::RangeRandom(0.0,1.0);
        float fGreen = Ogre::Math::RangeRandom(0.0,1.0);
        float fBlue = Ogre::Math::RangeRandom(0.0,1.0);
        Ogre::ColourValue subEntityColour = Ogre::ColourValue(1.0,fRed,fGreen,fBlue);

        unsigned int offset = 0;
        for (unsigned int iEntityClusterData = 0; iEntityClusterData < getNumEntitiesClusterData(); iEntityClusterData++)
        {                       
                EntityPtr entity = getEntityClusterData(iEntityClusterData)->getEntity();

                for (unsigned int iFace = 0; iFace < entity->getSubEntity(0)->getNumFaces(); iFace++)
                {
                        UniqueVertex uniqueVertex01, uniqueVertex02, uniqueVertex03;
                        Ogre::Vector3 indices = entity->getSubEntity(0)->getFaceVerticesIDs(iFace);
                        mEntity->getSubEntity(0)->addFaceVerticesIDs(indices + indicesOffset);
                        
                        mEntity->getSubEntity(0)->enableVertexColours(entity->getSubEntity(0)->hasVertexColours());
                        
                        uniqueVertex01.position = entity->getSubEntity(0)->getUniqueVertex(indices[0]).position;
                        uniqueVertex01.normal = entity->getSubEntity(0)->getUniqueVertex(indices[0]).normal;
                        uniqueVertex01.uv[0] = entity->getSubEntity(0)->getUniqueVertex(indices[0]).uv[0];
                        if (mEntity->getSubEntity(0)->hasVertexColours())
                        {                       
                uniqueVertex01.colour = subEntityColour.getAsRGBA();
                        }
                        mEntity->getSubEntity(0)->addUniqueVertex(uniqueVertex01);

                        uniqueVertex02.position = entity->getSubEntity(0)->getUniqueVertex(indices[1]).position;
                        uniqueVertex02.normal = entity->getSubEntity(0)->getUniqueVertex(indices[1]).normal;
                        uniqueVertex02.uv[0] = entity->getSubEntity(0)->getUniqueVertex(indices[1]).uv[0];
                        if (mEntity->getSubEntity(0)->hasVertexColours())
                        {                       
                uniqueVertex02.colour = subEntityColour.getAsRGBA();
                        }
                        mEntity->getSubEntity(0)->addUniqueVertex(uniqueVertex02);

                        uniqueVertex03.position = entity->getSubEntity(0)->getUniqueVertex(indices[2]).position;
                        uniqueVertex03.normal = entity->getSubEntity(0)->getUniqueVertex(indices[2]).normal;
                        uniqueVertex03.uv[0] = entity->getSubEntity(0)->getUniqueVertex(indices[2]).uv[0];
                        if (mEntity->getSubEntity(0)->hasVertexColours())
                        {                       
                uniqueVertex03.colour = subEntityColour.getAsRGBA();
                        }
                        mEntity->getSubEntity(0)->addUniqueVertex(uniqueVertex03);      


                }
                offset = offset + entity->getSubEntity(0)->getNumFaces() * 3;
                indicesOffset = Ogre::Vector3(offset, offset, offset);
        }
}

}