components/scene/BillboardComponent.cpp

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// /////////////////////////////////////////////////////////////////////////////
//
// Name:            BillboardComponent.cpp
// Author:          Michael Bartsch (ZCCdark203)
//
// Desc :           Component wrapper of Irrlicht's IBillboardSceneNode.
//
// License:         Copyright (C) 2009 Michael Bartsch and Contributors
//
//                  This program is free software: you can redistribute it
//                  and/or modify it under the terms of the zlib/libpng License.
//                  See main.cpp for conditions of distribution and use.
//
// /////////////////////////////////////////////////////////////////////////////

// Include files
#include "BillboardComponent.h"
#include "../../core/GameManager.h"


// BillboardComponent class
// BillboardComponent constructor (default).
BillboardComponent::BillboardComponent(Entity *parent, const dimension2df &size,
                                       const SColor &colorTop, const SColor &colorBottom)
: SceneComponent(parent, true)
{
    // Get pointers to needed sub-systems of the Game Manager.
    ISceneManager *pSceneMgr = GameManager::Instance()->getSceneManager();

    // Create the internal scene node.
    mBillboardSN = pSceneMgr->addBillboardSceneNode(0, size, parent->getPosition(), parent->getID(),
                                                    colorTop, colorBottom);
    mSceneNode = mBillboardSN;

    // Set-up internal mechanism for collision detection.
    mTriSelector = pSceneMgr->createTriangleSelectorFromBoundingBox(mBillboardSN);
    mMetaSelector = pSceneMgr->createMetaTriangleSelector();
}

// BillboardComponent constructor (derivatives).
BillboardComponent::BillboardComponent(Entity *parent, bool isDerived)
: SceneComponent(parent, true)
{
}

// AngelScript: Will be used to instanciate objects of this class.
BillboardComponent* BillboardComponent::refFactory(Entity *parent)
{
    return new BillboardComponent(parent);
}

// AngelScript: Will be used to instanciate objects of this class.
BillboardComponent* BillboardComponent::refFactory(Entity *parent, const dimension2df &size,
                                                   const SColor &colorTop, const SColor &colorBottom)
{
    return new BillboardComponent(parent, size, colorTop, colorBottom);
}

// BillboardComponent deconstructor.
BillboardComponent::~BillboardComponent()
{
    if(mBillboardSN != NULL)
    {
        mBillboardSN->remove();
        mSceneNode = NULL;
    }
}

// Returns a direct pointer to the IBillboardSceneNode.
IBillboardSceneNode* BillboardComponent::getBillboardSceneNode()
{
    return mBillboardSN;
}

// Gets the color of the top and bottom vertices of the billboard.
void BillboardComponent::getColor(SColor &topColor, SColor &bottomColor) const
{
    mBillboardSN->getColor(topColor, bottomColor);
}

// Returns the size of the billboard.
const dimension2df& BillboardComponent::getSize() const
{
    return mBillboardSN->getSize();
}

// Sets the color of all vertices of the billboard.
void BillboardComponent::setColor(const SColor &overallColor)
{
    mBillboardSN->setColor(overallColor);
}

// Sets the color of the top and bottom vertices of the billboard.
void BillboardComponent::setColor(const SColor &topColor, const SColor &bottomColor)
{
    mBillboardSN->setColor(topColor, bottomColor);
}

// Sets the size of the billboard.
void BillboardComponent::setSize(const dimension2df &size)
{
    mBillboardSN->setSize(size);
}


// BillboardComponent Angelscript binding.
void bindBillboardComponent(asIScriptEngine *engine)
{
    // Forward declarations.
    int r;

    // Bind BillboardComponent class.
    r = engine->RegisterObjectType("BillboardComponent", sizeof(BillboardComponent), asOBJ_REF); assert(r >= 0);

    // Bind base functions.
    bindBillboardComponentBase<BillboardComponent>(engine, "BillboardComponent");

    // Set BillboardComponent behaviour.
    r = engine->RegisterObjectBehaviour("BillboardComponent", asBEHAVE_FACTORY, "BillboardComponent@ f(Entity @)",
                                        asFUNCTIONPR(BillboardComponent::refFactory, (Entity*), BillboardComponent*),
                                        asCALL_CDECL); assert(r >= 0);
    r = engine->RegisterObjectBehaviour("BillboardComponent", asBEHAVE_FACTORY, "BillboardComponent@ f(Entity @, " \
                                        "const dimension2df &in, const SColor &in, const SColor &in)",
                                        asFUNCTIONPR(BillboardComponent::refFactory, (Entity*, const dimension2df&,
                                        const SColor&, const SColor&), BillboardComponent*),
                                        asCALL_CDECL); assert(r >= 0);
}

// End of File

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