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DirectionalLight.cpp

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00001 //------------------------------------------------------------------------------
00002 // Lamp : Open source game middleware
00003 // Copyright (C) 2004  Junpei Ohtani ( Email : junpee@users.sourceforge.jp )
00004 //
00005 // This library is free software; you can redistribute it and/or
00006 // modify it under the terms of the GNU Lesser General Public
00007 // License as published by the Free Software Foundation; either
00008 // version 2.1 of the License, or (at your option) any later version.
00009 //
00010 // This library is distributed in the hope that it will be useful,
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013 // Lesser General Public License for more details.
00014 //
00015 // You should have received a copy of the GNU Lesser General Public
00016 // License along with this library; if not, write to the Free Software
00017 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00018 //------------------------------------------------------------------------------
00019 
00020 /** @file
00021  * ディレクショナルライト実装
00022  * @author Junpee
00023  */
00024 
00025 #include "LampBasic.h"
00026 #include "Graphics/Light/DirectionalLight.h"
00027 #include "Graphics/Scene/Scene.h"
00028 #include "Graphics/Light/LightManager.h"
00029 
00030 namespace Lamp{
00031 
00032 //------------------------------------------------------------------------------
00033 // コンストラクタ
00034 DirectionalLight::DirectionalLight(const String& name, Scene* scene) :
00035     GlobalLight(name, scene), diffuseColor_(Color3f::white),
00036     specularColor_(Color3f::white), direction_(0.f, -1.f, 0.f),
00037     worldDirection_(0.f, -1.f, 0.f){
00038 }
00039 //------------------------------------------------------------------------------
00040 // デストラクタ
00041 DirectionalLight::~DirectionalLight(){
00042 }
00043 //------------------------------------------------------------------------------
00044 // ディレクショナルライトのコピー
00045 DirectionalLight* DirectionalLight::copyDirectionalLight() const{
00046     LightManager* manager = scene_->getLightManager();
00047     DirectionalLight* copyLight =
00048         manager->createDirectionalLight(manager->rename(name_));
00049     // ライトの値コピー
00050     copyLightValue(copyLight);
00051     // メンバのコピー
00052     copyLight->setDiffuseColor(diffuseColor_);
00053     copyLight->setSpecularColor(specularColor_);
00054     copyLight->setDirection(direction_);
00055     return copyLight;
00056 }
00057 //------------------------------------------------------------------------------
00058 // 走査
00059 void DirectionalLight::traverse(const Matrix34& parentMatrix,
00060     bool parentEnabled, bool parentScaled, bool parentChanged){
00061     Light::traverse(parentMatrix, parentEnabled, parentScaled, parentChanged);
00062     // ワールドの方向算出
00063     worldDirection_ = parentMatrix.multiply33(direction_);
00064     // ライトに対するスケールの判断微妙。Assert(false);で止めたほうがいいかも
00065     if(parentScaled){ worldDirection_.normalize(); }
00066     Assert(worldDirection_.isUnit());
00067 }
00068 //------------------------------------------------------------------------------
00069 } // End of namespace Lamp
00070 //------------------------------------------------------------------------------

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