1478 lines
48 KiB
C++
1478 lines
48 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include <osgDB/ReadFile>
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#include <osgDB/WriteFile>
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#include <osgUtil/Optimizer>
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#include <osgUtil/GLObjectsVisitor>
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#include <osgText/Text>
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#include <osg/Geode>
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#include <osg/Notify>
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#include <osg/MatrixTransform>
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#include <osg/PositionAttitudeTransform>
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#include <osg/Switch>
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#include <osg/TexMat>
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#include <osg/Texture2D>
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#include <osg/Timer>
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#include <osg/io_utils>
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#include <osgGA/GUIEventHandler>
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#include <osgParticle/ExplosionEffect>
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#include <osgParticle/ExplosionDebrisEffect>
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#include <osgParticle/SmokeEffect>
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#include <osgParticle/FireEffect>
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#include <osgViewer/Viewer>
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#include <iostream>
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#include <sstream>
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typedef std::vector<std::string> FileList;
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typedef std::map<std::string, osg::ref_ptr<osg::Node> > ObjectMap;
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static ObjectMap s_objectMap;
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class Character : public osg::Referenced
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{
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public:
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Character();
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void setCharacter(const std::string& filename, const std::string& name, const osg::Vec3& orgin, const osg::Vec3& width, const osg::Vec3& catchPos, float positionRatio);
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void setLives(const std::string& filename, const osg::Vec3& orgin, const osg::Vec3& delta, unsigned int numLives);
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void setCatches(const std::string& filename, const osg::Vec3& orgin, const osg::Vec3& delta, unsigned int numLives);
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void moveLeft();
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void moveRight();
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void moveTo(float positionRatio);
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void reset();
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void resetCatches();
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bool addCatch();
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bool looseLife();
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osg::Vec3 getCurrentCenterOfBasket() const { return _character->getPosition()+_centerBasket; }
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float getCurrentRadiusOfBasket() const { return _radiusBasket; }
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osg::Vec3 getLowerLeft() const { return _character->getPosition(); }
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osg::Vec3 getUpperRight() const { return _character->getPosition(); }
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osg::Vec3 _origin;
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osg::Vec3 _width;
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float _positionRatio;
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osg::ref_ptr<osg::PositionAttitudeTransform> _character;
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unsigned int _numLives;
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osg::ref_ptr<osg::Switch> _livesSwitch;
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unsigned int _numCatches;
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osg::ref_ptr<osg::Switch> _catchSwitch;
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osg::ref_ptr<osg::Group> _objectsGroup;
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osg::Vec3 _centerBasket;
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float _radiusBasket;
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};
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Character::Character():
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_positionRatio(0.5f),
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_numLives(3),
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_numCatches(0)
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{
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}
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void Character::setCharacter(const std::string& filename, const std::string& name, const osg::Vec3& origin, const osg::Vec3& width, const osg::Vec3& catchPos, float positionRatio)
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{
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_origin = origin;
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_width = width;
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_positionRatio = positionRatio;
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_numLives = 3;
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_numCatches = 0;
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float _characterSize = _width.length()*0.2f;
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osg::Image* image = osgDB::readImageFile(filename);
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if (image)
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{
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osg::Vec3 pos(-0.5f*_characterSize,0.0f,0.0f);
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osg::Vec3 width(_characterSize*((float)image->s())/(float)(image->t()),0.0f,0.0);
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osg::Vec3 height(0.0f,0.0f,_characterSize);
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osg::Geometry* geometry = osg::createTexturedQuadGeometry(pos,width,height);
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osg::StateSet* stateset = geometry->getOrCreateStateSet();
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stateset->setTextureAttributeAndModes(0,new osg::Texture2D(image),osg::StateAttribute::ON);
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stateset->setMode(GL_BLEND,osg::StateAttribute::ON);
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stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(geometry);
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_character = new osg::PositionAttitudeTransform;
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_character->setName(name);
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_character->addChild(geode);
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moveTo(positionRatio);
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_centerBasket = width*catchPos.x() + height*catchPos.y() + pos;
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_radiusBasket = width.length()*catchPos.z();
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}
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}
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void Character::setLives(const std::string& filename, const osg::Vec3& origin, const osg::Vec3& delta, unsigned int numLives)
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{
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float characterSize = delta.length();
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_numLives = numLives;
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_livesSwitch = new osg::Switch;
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osg::Image* image = osgDB::readImageFile(filename);
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if (image)
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{
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osg::StateSet* stateset = _livesSwitch->getOrCreateStateSet();
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stateset->setTextureAttributeAndModes(0,new osg::Texture2D(image),osg::StateAttribute::ON);
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stateset->setMode(GL_BLEND,osg::StateAttribute::ON);
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stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
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for(unsigned int i=0; i<numLives; ++i)
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{
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osg::Vec3 pos = origin + delta*(float)i + osg::Vec3(0.0f,0.0f,0.0f);
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osg::Vec3 width(characterSize*((float)image->s())/(float)(image->t()),0.0f,0.0);
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osg::Vec3 height(0.0f,0.0f,characterSize);
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osg::Geometry* geometry = osg::createTexturedQuadGeometry(pos,width,height);
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(geometry);
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_livesSwitch->addChild(geode,true);
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}
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}
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}
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void Character::setCatches(const std::string& filename, const osg::Vec3& origin, const osg::Vec3& delta, unsigned int numCatches)
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{
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float characterSize = delta.length();
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_numCatches = 0;
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_catchSwitch = new osg::Switch;
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osg::Image* image = osgDB::readImageFile(filename);
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if (image)
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{
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osg::StateSet* stateset = _catchSwitch->getOrCreateStateSet();
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stateset->setTextureAttributeAndModes(0,new osg::Texture2D(image),osg::StateAttribute::ON);
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stateset->setMode(GL_BLEND,osg::StateAttribute::ON);
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stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
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for(unsigned int i=0; i<numCatches; ++i)
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{
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osg::Vec3 pos = origin + delta*(float)i + osg::Vec3(0.0f,0.0f,0.0f);
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osg::Vec3 width(characterSize,0.0f,0.0);
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osg::Vec3 height(0.0f,0.0f,characterSize*((float)image->t())/(float)(image->s()));
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osg::Geometry* geometry = osg::createTexturedQuadGeometry(pos,width,height);
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(geometry);
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_catchSwitch->addChild(geode,false);
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}
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}
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}
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void Character::moveLeft()
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{
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moveTo(_positionRatio - 0.01f);
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}
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void Character::moveRight()
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{
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moveTo(_positionRatio + 0.01f);
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}
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void Character::moveTo(float positionRatio)
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{
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if (positionRatio<0.0f) positionRatio = 0.0f;
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if (positionRatio>1.0f) positionRatio = 1.0f;
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_positionRatio = positionRatio;
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_character->setPosition(_origin+_width*+positionRatio);
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}
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void Character::reset()
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{
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_numCatches = 0;
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_numLives = _livesSwitch->getNumChildren();
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_livesSwitch->setAllChildrenOn();
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_catchSwitch->setAllChildrenOff();
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}
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void Character::resetCatches()
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{
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_numCatches = 0;
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_catchSwitch->setAllChildrenOff();
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}
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bool Character::addCatch()
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{
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if (!_catchSwitch || _numCatches>=_catchSwitch->getNumChildren()) return false;
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_catchSwitch->setValue(_numCatches,true);
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++_numCatches;
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return true;
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}
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bool Character::looseLife()
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{
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if (!_livesSwitch || _numLives==0) return false;
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--_numLives;
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_livesSwitch->setValue(_numLives,false);
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return (_numLives!=0);
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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class CatchableObject : public osg::Referenced
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{
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public:
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CatchableObject();
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void setObject(const std::string& filename, const std::string& name, const osg::Vec3& center, float size, const osg::Vec3& direction);
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bool anyInside(const osg::Vec3& lower_left, const osg::Vec3& top_right);
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bool centerInside(const osg::Vec3& center, float radius);
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void explode();
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bool dangerous() { return _dangerous; }
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void stop() { _stopped = true; }
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bool stopped() { return _stopped; }
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void setTimeToRemove(double time) { _timeToRemove=time; }
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double getTimeToRemove() { return _timeToRemove; }
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bool needToRemove(double time) { return _timeToRemove>=0.0 && time>_timeToRemove; }
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osg::ref_ptr<osg::PositionAttitudeTransform> _object;
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osg::Vec3 _velocity;
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float _mass;
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float _radius;
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bool _stopped;
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bool _dangerous;
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double _timeToRemove;
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static void setUpCatchablesMap(const FileList& fileList);
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public:
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// update position and velocity
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void update(double dt);
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/// Set the viscosity of the fluid.
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inline void setFluidViscosity(float v)
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{
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_viscosity = v;
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_viscosityCoefficient = 6 * osg::PI * _viscosity;
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}
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/// Get the viscosity of the fluid.
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inline float getFluidViscosity() const { return _viscosity; }
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/// Set the density of the fluid.
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inline void setFluidDensity(float d)
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{
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_density = d;
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_densityCoefficeint = 0.2f * osg::PI * _density;
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}
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/// Get the density of the fluid.
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inline float getFluidDensity() const { return _density; }
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/// Set the wind vector.
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inline void setWind(const osg::Vec3& wind) { _wind = wind; }
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/// Get the wind vector.
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inline const osg::Vec3& getWind() const { return _wind; }
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/// Set the acceleration vector.
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inline void setAcceleration(const osg::Vec3& v) { _acceleration = v; }
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/// Get the acceleration vector.
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inline const osg::Vec3& getAcceleration() const { return _acceleration; }
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/** Set the acceleration vector to the gravity on earth (0, 0, -9.81).
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The acceleration will be multiplied by the <CODE>scale</CODE> parameter.
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*/
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inline void setToGravity(float scale = 1.0f) { _acceleration.set(0, 0, -9.81f*scale); }
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/// Set the fluid parameters as for air (20<32>C temperature).
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inline void setFluidToAir()
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{
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setToGravity(1.0f);
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setFluidDensity(1.2929f);
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setFluidViscosity(1.8e-5f);
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}
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/// Set the fluid parameters as for pure water (20<32>C temperature).
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inline void setFluidToWater()
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{
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setToGravity(1.0f);
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setFluidDensity(1.0f);
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setFluidViscosity(1.002e-3f);
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}
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protected:
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osg::Vec3 _acceleration;
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float _viscosity;
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float _density;
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osg::Vec3 _wind;
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float _viscosityCoefficient;
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float _densityCoefficeint;
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};
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CatchableObject::CatchableObject()
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{
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_stopped = false;
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_dangerous = false;
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_timeToRemove = -1.0; // do not remove.
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setFluidToAir();
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}
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void CatchableObject::setUpCatchablesMap(const FileList& fileList)
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{
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for(FileList::const_iterator itr=fileList.begin();
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itr!=fileList.end();
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++itr)
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{
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const std::string& filename = *itr;
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osg::Image* image = osgDB::readImageFile(filename);
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if (image)
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{
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osg::ref_ptr<osg::StateSet> stateset = new osg::StateSet();
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stateset->setTextureAttributeAndModes(0,new osg::Texture2D(image),osg::StateAttribute::ON);
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stateset->setMode(GL_BLEND,osg::StateAttribute::ON);
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stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
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osg::Vec3 width((float)(image->s())/(float)(image->t()),0.0f,0.0);
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osg::Vec3 height(0.0f,0.0f,1.0f);
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osg::Vec3 pos = (width+height)*-0.5f;
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osg::Geometry* geometry = osg::createTexturedQuadGeometry(pos,width,height);
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geometry->setStateSet(stateset.get());
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(geometry);
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s_objectMap[filename] = geode;
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}
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}
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}
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void CatchableObject::setObject(const std::string& filename, const std::string& name, const osg::Vec3& center, float characterSize, const osg::Vec3& velocity)
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{
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_radius = 0.5f*characterSize;
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float Area = osg::PI*_radius*_radius;
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float Volume = Area*_radius*4.0f/3.0f;
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_velocity = velocity;
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_mass = 1000.0*Volume;
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if (s_objectMap.count(filename)!=0)
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{
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osg::PositionAttitudeTransform* scaleTransform = new osg::PositionAttitudeTransform;
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scaleTransform->setScale(osg::Vec3(characterSize,characterSize,characterSize));
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scaleTransform->addChild(s_objectMap[filename].get());
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_object = new osg::PositionAttitudeTransform;
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_object->setName(name);
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_object->setPosition(center);
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_object->addChild(scaleTransform);
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}
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else
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{
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osg::notify(osg::NOTICE)<<"CatchableObject::setObject("<<filename<<") not able to create catchable object."<<std::endl;
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}
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}
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void CatchableObject::update(double dt)
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{
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if (_stopped) return;
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float Area = osg::PI*_radius*_radius;
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float Volume = Area*_radius*4.0f/3.0f;
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// compute force due to gravity + boyancy of displacing the fluid that the particle is emersed in.
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osg::Vec3 force = _acceleration * (_mass - _density*Volume);
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// compute force due to friction
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osg::Vec3 relative_wind = _velocity-_wind;
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force -= relative_wind * Area * (_viscosityCoefficient + _densityCoefficeint*relative_wind.length());
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// divide force by mass to get acceleration.
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_velocity += force*(dt/_mass);
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_object->setPosition(_object->getPosition()+_velocity*dt);
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}
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bool CatchableObject::anyInside(const osg::Vec3& lower_left, const osg::Vec3& upper_right)
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{
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osg::Vec3 pos = _object->getPosition();
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if (pos.x()+_radius < lower_left.x()) return false;
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if (pos.x()-_radius > upper_right.x()) return false;
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if (pos.z()+_radius < lower_left.z()) return false;
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if (pos.z()-_radius > upper_right.z()) return false;
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return true;
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}
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bool CatchableObject::centerInside(const osg::Vec3& center, float radius)
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{
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osg::Vec3 delta = _object->getPosition() - center;
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return (delta.length()<radius);
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}
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void CatchableObject::explode()
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{
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osg::Vec3 position(0.0f,0.0f,0.0f);
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osgParticle::ExplosionEffect* explosion = new osgParticle::ExplosionEffect(position, _radius);
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osgParticle::ExplosionDebrisEffect* explosionDebri = new osgParticle::ExplosionDebrisEffect(position, _radius);
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osgParticle::SmokeEffect* smoke = new osgParticle::SmokeEffect(position, _radius);
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osgParticle::FireEffect* fire = new osgParticle::FireEffect(position, _radius);
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explosion->setWind(_wind);
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explosionDebri->setWind(_wind);
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smoke->setWind(_wind);
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fire->setWind(_wind);
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_object->addChild(explosion);
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_object->addChild(explosionDebri);
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_object->addChild(smoke);
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_object->addChild(fire);
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_dangerous = true;
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}
|
||
|
||
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||
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
||
//
|
||
class GameEventHandler : public osgGA::GUIEventHandler
|
||
{
|
||
public:
|
||
|
||
GameEventHandler();
|
||
|
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META_Object(osgStereImageApp,GameEventHandler);
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|
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virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&);
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virtual void getUsage(osg::ApplicationUsage& usage) const;
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||
|
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osg::Matrix getCameraPosition();
|
||
|
||
void compileGLObjects(osg::State& state)
|
||
{
|
||
osgUtil::GLObjectsVisitor compile;
|
||
compile.setState(&state);
|
||
|
||
for(ObjectMap::iterator itr = s_objectMap.begin();
|
||
itr != s_objectMap.end();
|
||
++itr)
|
||
{
|
||
itr->second->accept(compile);
|
||
}
|
||
}
|
||
|
||
osg::Node* createScene();
|
||
|
||
void setFOVY(float fovy) { _fovy = fovy; }
|
||
float getFOVY() const { return _fovy; }
|
||
|
||
void createNewCatchable();
|
||
|
||
void clearCatchables()
|
||
{
|
||
for(CatchableObjectList::iterator itr=_catchableObjects.begin();
|
||
itr!=_catchableObjects.end();
|
||
++itr)
|
||
{
|
||
// need to remove
|
||
// remove child from parents.
|
||
osg::ref_ptr<osg::PositionAttitudeTransform> child = (*itr)->_object;
|
||
osg::Node::ParentList parents = child->getParents();
|
||
for(osg::Node::ParentList::iterator pitr=parents.begin();
|
||
pitr!=parents.end();
|
||
++pitr)
|
||
{
|
||
(*pitr)->removeChild(child.get());
|
||
}
|
||
}
|
||
|
||
_catchableObjects.clear();
|
||
}
|
||
|
||
void resetLevel()
|
||
{
|
||
_level = 0;
|
||
_levelSwitch->setSingleChildOn(_level);
|
||
clearCatchables();
|
||
|
||
updateLevelText();
|
||
|
||
_levelStartTick = osg::Timer::instance()->tick();
|
||
}
|
||
|
||
void nextLevel()
|
||
{
|
||
++_level;
|
||
if (_level < _levelSwitch->getNumChildren())
|
||
{
|
||
_levelSwitch->setSingleChildOn(_level);
|
||
clearCatchables();
|
||
}
|
||
|
||
updateLevelText();
|
||
|
||
_levelStartTick = osg::Timer::instance()->tick();
|
||
}
|
||
|
||
bool gameComplete()
|
||
{
|
||
return _level >= _levelSwitch->getNumChildren();
|
||
}
|
||
|
||
void resetGame()
|
||
{
|
||
_currentScore = 0;
|
||
|
||
updateTextWithScore();
|
||
|
||
clearCatchables();
|
||
resetLevel();
|
||
|
||
for(unsigned int i=0;i<_numberOfPlayers;++i)
|
||
{
|
||
_players[i].reset();
|
||
}
|
||
}
|
||
|
||
|
||
enum Players
|
||
{
|
||
PLAYER_GIRL,
|
||
PLAYER_BOY
|
||
};
|
||
|
||
void addPlayer(Players player)
|
||
{
|
||
osg::Vec3 livesPosition;
|
||
osg::Vec3 catchesPosition;
|
||
if (_numberOfPlayers==0)
|
||
{
|
||
livesPosition = _originBaseLine+osg::Vec3(0.0f,-0.5f,0.0f);
|
||
catchesPosition = _originBaseLine+osg::Vec3(100.0f,-0.5f,0.0f);
|
||
}
|
||
else
|
||
{
|
||
livesPosition = _originBaseLine+osg::Vec3(1000.0f,-0.5f,000.0f);
|
||
catchesPosition = _originBaseLine+osg::Vec3(1100.0f,-0.5f,0.0f);
|
||
}
|
||
|
||
switch(player)
|
||
{
|
||
case PLAYER_GIRL:
|
||
{
|
||
std::string player_one = "Catch/girl.png";
|
||
osg::Vec3 catchPos(0.2, 0.57, 0.34);
|
||
|
||
_players[_numberOfPlayers].setCharacter(player_one,"girl", _originBaseLine + osg::Vec3(0.0f,-1.0f,0.0f), _widthBaseLine, catchPos, 0.5f);
|
||
_players[_numberOfPlayers].setLives(player_one,livesPosition, osg::Vec3(0.0f,0.0f,100.0f),3);
|
||
_players[_numberOfPlayers].setCatches("Catch/broach.png",catchesPosition, osg::Vec3(0.0f,0.0f,100.0f),10);
|
||
|
||
++_numberOfPlayers;
|
||
break;
|
||
}
|
||
case PLAYER_BOY:
|
||
{
|
||
std::string player_two = "Catch/boy.png";
|
||
osg::Vec3 catchPos(0.8, 0.57, 0.34);
|
||
|
||
_players[_numberOfPlayers].setCharacter(player_two,"boy", _originBaseLine + osg::Vec3(0.0f,-2.0f,0.0f), _widthBaseLine, catchPos, 0.5f);
|
||
_players[_numberOfPlayers].setLives(player_two,livesPosition, osg::Vec3(0.0f,0.0f,100.0f),3);
|
||
_players[_numberOfPlayers].setCatches("Catch/broach.png",catchesPosition, osg::Vec3(0.0f,0.0f,100.0f),10);
|
||
|
||
++_numberOfPlayers;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
typedef std::vector< osg::ref_ptr<osgText::Text> > TextList;
|
||
|
||
void updateScoreWithCatch()
|
||
{
|
||
_currentScore += 1;
|
||
updateTextWithScore();
|
||
}
|
||
|
||
void updateScoreWithLevel()
|
||
{
|
||
osg::Timer_t newTick = osg::Timer::instance()->tick();
|
||
double timeForLevel = osg::Timer::instance()->delta_s(_levelStartTick, newTick);
|
||
|
||
// a ten second level gets you 10 points,
|
||
// a twenty second levels gets you 5 points.
|
||
_currentScore += static_cast<unsigned int>(10000.0f/(timeForLevel*timeForLevel));
|
||
|
||
updateTextWithScore();
|
||
|
||
}
|
||
|
||
void updateTextWithScore()
|
||
{
|
||
std::ostringstream os;
|
||
os<<"Score: "<<_currentScore;
|
||
|
||
std::string textString = os.str();
|
||
|
||
for(TextList::iterator itr = _scoreTextList.begin();
|
||
itr != _scoreTextList.end();
|
||
++itr)
|
||
{
|
||
(*itr)->setText(textString);
|
||
}
|
||
}
|
||
|
||
void updateLevelText()
|
||
{
|
||
std::ostringstream os;
|
||
os<<"Level: "<<_level+1;
|
||
_levelText->setText(os.str());
|
||
}
|
||
|
||
|
||
protected:
|
||
|
||
~GameEventHandler() {}
|
||
GameEventHandler(const GameEventHandler&,const osg::CopyOp&) {}
|
||
|
||
osg::Vec3 _origin;
|
||
osg::Vec3 _width;
|
||
osg::Vec3 _height;
|
||
osg::Vec3 _originBaseLine;
|
||
osg::Vec3 _widthBaseLine;
|
||
float _characterSize;
|
||
|
||
float _fovy;
|
||
|
||
unsigned _level;
|
||
|
||
float _chanceOfExplodingAtStart;
|
||
float _initialNumDropsPerSecond;
|
||
|
||
osg::ref_ptr<osg::Switch> _gameSwitch;
|
||
osg::ref_ptr<osg::Group> _gameGroup;
|
||
osg::ref_ptr<osg::Switch> _levelSwitch;
|
||
|
||
unsigned int _currentIndex;
|
||
unsigned int _welcomeIndex;
|
||
unsigned int _lostIndex;
|
||
unsigned int _wonIndex;
|
||
unsigned int _gameIndex;
|
||
|
||
osg::Timer_t _levelStartTick;
|
||
unsigned int _currentScore;
|
||
|
||
osg::ref_ptr<osgText::Text> _levelText;
|
||
TextList _scoreTextList;
|
||
|
||
unsigned int _numberOfPlayers;
|
||
Character _players[2];
|
||
|
||
typedef std::list< osg::ref_ptr<CatchableObject> > CatchableObjectList;
|
||
CatchableObjectList _catchableObjects;
|
||
|
||
FileList _backgroundFiles;
|
||
FileList _benignCatachables;
|
||
|
||
bool _leftKeyPressed;
|
||
bool _rightKeyPressed;
|
||
|
||
osg::ref_ptr<CatchableObject> _dummyCatchable;
|
||
|
||
|
||
};
|
||
|
||
|
||
|
||
|
||
GameEventHandler::GameEventHandler()
|
||
{
|
||
_origin.set(0.0f,0.0f,0.0f);
|
||
_width.set(1280.0f,0.0f,0.0f);
|
||
_height.set(0.0f,0.0f,1024.0f);
|
||
_widthBaseLine = _width*0.9f;
|
||
_originBaseLine = _origin+_width*0.5-_widthBaseLine*0.5f;
|
||
_characterSize = _width.length()*0.2f;
|
||
|
||
_numberOfPlayers = 0;
|
||
_level = 0;
|
||
|
||
_chanceOfExplodingAtStart = 0.1f;
|
||
_initialNumDropsPerSecond = 1.0f;
|
||
|
||
_leftKeyPressed=false;
|
||
_rightKeyPressed=false;
|
||
|
||
_backgroundFiles.push_back("Catch/sky1.JPG");
|
||
_backgroundFiles.push_back("Catch/sky3.JPG");
|
||
_backgroundFiles.push_back("Catch/sky2.JPG");
|
||
_backgroundFiles.push_back("Catch/farm.JPG");
|
||
|
||
_benignCatachables.push_back("Catch/a.png");
|
||
_benignCatachables.push_back("Catch/b.png");
|
||
_benignCatachables.push_back("Catch/c.png");
|
||
_benignCatachables.push_back("Catch/m.png");
|
||
_benignCatachables.push_back("Catch/n.png");
|
||
_benignCatachables.push_back("Catch/s.png");
|
||
_benignCatachables.push_back("Catch/t.png");
|
||
_benignCatachables.push_back("Catch/u.png");
|
||
_benignCatachables.push_back("Catch/ball.png");
|
||
|
||
CatchableObject::setUpCatchablesMap(_benignCatachables);
|
||
|
||
_currentScore = 0;
|
||
|
||
setFOVY(osg::DegreesToRadians(60.0));
|
||
|
||
}
|
||
|
||
bool GameEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&)
|
||
{
|
||
if (_currentIndex==_welcomeIndex)
|
||
{
|
||
// welcome screen
|
||
switch(ea.getEventType())
|
||
{
|
||
case(osgGA::GUIEventAdapter::KEYDOWN):
|
||
{
|
||
_currentIndex = _gameIndex;
|
||
_gameSwitch->setSingleChildOn(_currentIndex);
|
||
resetGame();
|
||
return true;
|
||
}
|
||
default:
|
||
return false;
|
||
}
|
||
|
||
}
|
||
else if (_currentIndex==_lostIndex)
|
||
{
|
||
// lost screen
|
||
switch(ea.getEventType())
|
||
{
|
||
case(osgGA::GUIEventAdapter::KEYDOWN):
|
||
{
|
||
_currentIndex = _gameIndex;
|
||
_gameSwitch->setSingleChildOn(_currentIndex);
|
||
resetGame();
|
||
return true;
|
||
}
|
||
default:
|
||
return false;
|
||
}
|
||
|
||
}
|
||
else if (_currentIndex==_wonIndex)
|
||
{
|
||
// won screen
|
||
switch(ea.getEventType())
|
||
{
|
||
case(osgGA::GUIEventAdapter::KEYDOWN):
|
||
{
|
||
_currentIndex = _gameIndex;
|
||
_gameSwitch->setSingleChildOn(_currentIndex);
|
||
resetGame();
|
||
return true;
|
||
}
|
||
default:
|
||
return false;
|
||
}
|
||
|
||
}
|
||
else if (_currentIndex==_gameIndex)
|
||
{
|
||
// in game.
|
||
|
||
switch(ea.getEventType())
|
||
{
|
||
case(osgGA::GUIEventAdapter::FRAME):
|
||
{
|
||
// move characters
|
||
if (_leftKeyPressed)
|
||
{
|
||
if (_numberOfPlayers>=2) _players[1].moveLeft();
|
||
}
|
||
|
||
if (_rightKeyPressed)
|
||
{
|
||
if (_numberOfPlayers>=2) _players[1].moveRight();
|
||
}
|
||
|
||
static double previous_time = ea.getTime();
|
||
double dt = ea.getTime()-previous_time;
|
||
previous_time = ea.getTime();
|
||
|
||
// move objects
|
||
for(CatchableObjectList::iterator itr=_catchableObjects.begin();
|
||
itr!=_catchableObjects.end();
|
||
++itr)
|
||
{
|
||
(*itr)->update(dt);
|
||
|
||
bool removeEntry = false;
|
||
|
||
for(unsigned int i=0;i<_numberOfPlayers;++i)
|
||
{
|
||
bool inBasket = ((*itr)->centerInside(_players[i].getCurrentCenterOfBasket(),_players[i].getCurrentRadiusOfBasket()));
|
||
|
||
if ((*itr)->dangerous())
|
||
{
|
||
if ((*itr)->anyInside(_players[i].getLowerLeft(),_players[i].getUpperRight()) || inBasket)
|
||
{
|
||
// player has hit or caught a dangerous object, must loose a life.
|
||
if (!_players[i].looseLife())
|
||
{
|
||
_currentIndex = _lostIndex;
|
||
_gameSwitch->setSingleChildOn(_currentIndex);
|
||
|
||
return true;
|
||
}
|
||
else
|
||
{
|
||
clearCatchables();
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
else if (inBasket)
|
||
{
|
||
// player has caught a safe object.
|
||
updateScoreWithCatch();
|
||
|
||
if (!_players[i].addCatch())
|
||
{
|
||
_players[i].resetCatches();
|
||
updateScoreWithLevel();
|
||
nextLevel();
|
||
if (gameComplete())
|
||
{
|
||
_currentIndex = _wonIndex;
|
||
_gameSwitch->setSingleChildOn(_currentIndex);
|
||
}
|
||
return true;
|
||
}
|
||
|
||
removeEntry = true;
|
||
}
|
||
}
|
||
|
||
if (!(*itr)->anyInside(_origin, _origin+_width+_height) ||
|
||
(*itr)->needToRemove(ea.getTime()) ||
|
||
removeEntry)
|
||
{
|
||
// need to remove
|
||
// remove child from parents.
|
||
osg::ref_ptr<osg::PositionAttitudeTransform> child = (*itr)->_object;
|
||
osg::Node::ParentList parents = child->getParents();
|
||
for(osg::Node::ParentList::iterator pitr=parents.begin();
|
||
pitr!=parents.end();
|
||
++pitr)
|
||
{
|
||
(*pitr)->removeChild(child.get());
|
||
}
|
||
|
||
// remove child from catchable list
|
||
itr = _catchableObjects.erase(itr);
|
||
|
||
}
|
||
else if ((*itr)->anyInside(_origin, _origin+_width) && !(*itr)->stopped())
|
||
{
|
||
// hit base line
|
||
(*itr)->explode();
|
||
(*itr)->stop();
|
||
(*itr)->setTimeToRemove(ea.getTime()+3.0);
|
||
}
|
||
|
||
}
|
||
|
||
|
||
// create new catchable objects
|
||
static double previousTime = ea.getTime();
|
||
double deltaTime = ea.getTime()-previousTime;
|
||
previousTime = ea.getTime();
|
||
|
||
float numDropsPerSecond = _initialNumDropsPerSecond * (_level+1);
|
||
float r = (float)rand()/(float)RAND_MAX;
|
||
if (r < deltaTime*numDropsPerSecond)
|
||
{
|
||
createNewCatchable();
|
||
}
|
||
|
||
|
||
|
||
}
|
||
case(osgGA::GUIEventAdapter::KEYDOWN):
|
||
{
|
||
if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Left)
|
||
{
|
||
_leftKeyPressed=true;
|
||
return true;
|
||
}
|
||
else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Right)
|
||
{
|
||
_rightKeyPressed=true;
|
||
return true;
|
||
}
|
||
}
|
||
case(osgGA::GUIEventAdapter::KEYUP):
|
||
{
|
||
if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Left)
|
||
{
|
||
_leftKeyPressed=false;
|
||
return true;
|
||
}
|
||
else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Right)
|
||
{
|
||
_rightKeyPressed=false;
|
||
return true;
|
||
}
|
||
}
|
||
case(osgGA::GUIEventAdapter::DRAG):
|
||
case(osgGA::GUIEventAdapter::MOVE):
|
||
{
|
||
float px = (ea.getXnormalized()+1.0f)*0.5f;
|
||
|
||
if (_numberOfPlayers>=1) _players[0].moveTo(px);
|
||
|
||
return true;
|
||
}
|
||
|
||
default:
|
||
return false;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
void GameEventHandler::getUsage(osg::ApplicationUsage&) const
|
||
{
|
||
}
|
||
|
||
osg::Matrix GameEventHandler::getCameraPosition()
|
||
{
|
||
osg::Matrix cameraPosition;
|
||
osg::Vec3 center = _origin+(_width+_height)*0.5f;
|
||
|
||
float distance = _height.length()/(2.0f*tanf(_fovy*0.5f));
|
||
|
||
cameraPosition.makeLookAt(center-osg::Vec3(0.0f,distance,0.0f),center,osg::Vec3(0.0f,0.0f,1.0f));
|
||
return cameraPosition;
|
||
}
|
||
|
||
osg::Node* GameEventHandler::createScene()
|
||
{
|
||
_gameSwitch = new osg::Switch;
|
||
|
||
// create a dummy catchable to load all the particule textures to reduce
|
||
// latency later on..
|
||
_dummyCatchable = new CatchableObject;
|
||
_dummyCatchable->setObject("Catch/a.png","a",osg::Vec3(0.0f,0.0,0.0f),1.0f,osg::Vec3(0.0f,0.0,0.0f));
|
||
_dummyCatchable->explode();
|
||
|
||
// set up welcome subgraph
|
||
{
|
||
osg::Geode* geode = new osg::Geode;
|
||
|
||
// set up the background
|
||
osg::Image* image = osgDB::readImageFile("Catch/Welcome.jpg");
|
||
if (image)
|
||
{
|
||
osg::Geometry* geometry = osg::createTexturedQuadGeometry(_origin,_width,_height);
|
||
osg::StateSet* stateset = geometry->getOrCreateStateSet();
|
||
stateset->setTextureAttributeAndModes(0,new osg::Texture2D(image),osg::StateAttribute::ON);
|
||
|
||
geode->addDrawable(geometry);
|
||
}
|
||
|
||
// set up the text
|
||
osg::Vec3 textPosition = _origin+_width*0.5f+_height*0.8f -osg::Vec3(0.0f,0.1f,0.0f);
|
||
{
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("osgcatch is a childrens catching game\nMove your character using the mouse to\ncatch falling objects in your net\nbut avoid burning objects - they kill!!");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.025f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(text);
|
||
}
|
||
|
||
{
|
||
textPosition -= _height*0.25f;
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Move mouse left and right to move character\nCatch ten objects to advance to next level\nComplete four levels to win.");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.025f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(text);
|
||
}
|
||
|
||
{
|
||
textPosition -= _height*0.25f;
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Game concept and artwork - Caitlin Osfield, aged 5!\nSoftware development - Robert Osfield");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.025f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(text);
|
||
}
|
||
|
||
{
|
||
textPosition -= _height*0.25f;
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Press any key to start game.\nPress Escape to exit game at any time.");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.025f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(text);
|
||
}
|
||
|
||
_welcomeIndex = _gameSwitch->getNumChildren();
|
||
_gameSwitch->addChild(geode);
|
||
}
|
||
|
||
// set up you've lost subgraph
|
||
{
|
||
osg::Geode* geode = new osg::Geode;
|
||
|
||
osg::Image* image = osgDB::readImageFile("Catch/YouLost.jpg");
|
||
if (image)
|
||
{
|
||
osg::Geometry* geometry = osg::createTexturedQuadGeometry(_origin,_width,_height);
|
||
osg::StateSet* stateset = geometry->getOrCreateStateSet();
|
||
stateset->setTextureAttributeAndModes(0,new osg::Texture2D(image),osg::StateAttribute::ON);
|
||
|
||
geode->addDrawable(geometry);
|
||
}
|
||
|
||
// set up the text
|
||
osg::Vec3 textPosition = _origin+_width*0.5f+_height*0.75f -osg::Vec3(0.0f,0.1f,0.0f);
|
||
{
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Game Over\nYou lost all three lives");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.04f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(text);
|
||
}
|
||
|
||
{
|
||
textPosition -= _height*0.25f;
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Score: 0");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.04f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
text->setDataVariance(osg::Object::DYNAMIC);
|
||
|
||
geode->addDrawable(text);
|
||
_scoreTextList.push_back(text);
|
||
}
|
||
|
||
{
|
||
textPosition -= _height*0.25f;
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Press any key to have another game.\nPress Escape to exit game.");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.025f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(text);
|
||
}
|
||
|
||
_lostIndex = _gameSwitch->getNumChildren();
|
||
_gameSwitch->addChild(geode);
|
||
}
|
||
|
||
// set up you've won subgraph
|
||
{
|
||
osg::Geode* geode = new osg::Geode;
|
||
|
||
osg::Image* image = osgDB::readImageFile("Catch/YouWon.jpg");
|
||
if (image)
|
||
{
|
||
osg::Geometry* geometry = osg::createTexturedQuadGeometry(_origin,_width,_height);
|
||
osg::StateSet* stateset = geometry->getOrCreateStateSet();
|
||
stateset->setTextureAttributeAndModes(0,new osg::Texture2D(image),osg::StateAttribute::ON);
|
||
|
||
geode->addDrawable(geometry);
|
||
}
|
||
|
||
// set up the text
|
||
osg::Vec3 textPosition = _origin+_width*0.5f+_height*0.75f -osg::Vec3(0.0f,0.1f,0.0f);
|
||
{
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Well done!!!\nYou completed all levels!");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.04f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(text);
|
||
}
|
||
|
||
{
|
||
textPosition -= _height*0.25f;
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Score: 0");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.04f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(text);
|
||
_scoreTextList.push_back(text);
|
||
}
|
||
|
||
{
|
||
textPosition -= _height*0.25f;
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Press any key to have another game.\nPress Escape to exit game.");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.025f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(text);
|
||
}
|
||
|
||
_wonIndex = _gameSwitch->getNumChildren();
|
||
_gameSwitch->addChild(geode);
|
||
}
|
||
|
||
// set up game subgraph.
|
||
{
|
||
_gameGroup = new osg::Group;
|
||
|
||
if (_numberOfPlayers==0)
|
||
{
|
||
addPlayer(PLAYER_GIRL);
|
||
}
|
||
|
||
for(unsigned int i=0;i<_numberOfPlayers;++i)
|
||
{
|
||
_gameGroup->addChild(_players[i]._character.get());
|
||
_gameGroup->addChild(_players[i]._livesSwitch.get());
|
||
_gameGroup->addChild(_players[i]._catchSwitch.get());
|
||
}
|
||
|
||
// background
|
||
{
|
||
_levelSwitch = new osg::Switch;
|
||
|
||
for(FileList::const_iterator itr = _backgroundFiles.begin();
|
||
itr != _backgroundFiles.end();
|
||
++itr)
|
||
{
|
||
|
||
osg::Image* image = osgDB::readImageFile(*itr);
|
||
if (image)
|
||
{
|
||
osg::Geometry* geometry = osg::createTexturedQuadGeometry(_origin,_width,_height);
|
||
osg::StateSet* stateset = geometry->getOrCreateStateSet();
|
||
stateset->setTextureAttributeAndModes(0,new osg::Texture2D(image),osg::StateAttribute::ON);
|
||
|
||
osg::Geode* geode = new osg::Geode;
|
||
geode->addDrawable(geometry);
|
||
|
||
_levelSwitch->addChild(geode);
|
||
}
|
||
}
|
||
_levelSwitch->setSingleChildOn(0);
|
||
_gameGroup->addChild(_levelSwitch.get());
|
||
}
|
||
|
||
|
||
_gameIndex = _gameSwitch->getNumChildren();
|
||
_gameSwitch->addChild(_gameGroup.get());
|
||
|
||
// set up the text
|
||
osg::Vec3 textPosition = _origin+_width*0.05f+_height*0.95f-osg::Vec3(0.0f,0.1f,0.0f);
|
||
{
|
||
osgText::Text* text = new osgText::Text;
|
||
text->setText("Score : 0");
|
||
text->setFont("fonts/dirtydoz.ttf");
|
||
text->setPosition(textPosition);
|
||
text->setCharacterSize(_width.length()*0.04f);
|
||
text->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
text->setDataVariance(osg::Object::DYNAMIC);
|
||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
osg::Geode* geode = new osg::Geode;
|
||
geode->addDrawable(text);
|
||
_scoreTextList.push_back(text);
|
||
|
||
textPosition -= _height*0.05f;
|
||
_levelText = new osgText::Text;
|
||
_levelText->setText("Level : 0");
|
||
_levelText->setFont("fonts/dirtydoz.ttf");
|
||
_levelText->setPosition(textPosition);
|
||
_levelText->setCharacterSize(_width.length()*0.04f);
|
||
_levelText->setColor(osg::Vec4(0.0f,0.2f,0.2f,1.0f));
|
||
_levelText->setDataVariance(osg::Object::DYNAMIC);
|
||
_levelText->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||
|
||
geode->addDrawable(_levelText.get());
|
||
|
||
|
||
|
||
_gameGroup->addChild(geode);
|
||
}
|
||
|
||
|
||
}
|
||
|
||
_currentIndex = _welcomeIndex;
|
||
_gameSwitch->setSingleChildOn(_currentIndex);
|
||
|
||
return _gameSwitch.get();
|
||
}
|
||
|
||
void GameEventHandler::createNewCatchable()
|
||
{
|
||
if (_benignCatachables.empty()) return;
|
||
|
||
unsigned int catachableIndex = (unsigned int)((float)_benignCatachables.size()*(float)rand()/(float)RAND_MAX);
|
||
if (catachableIndex>=_benignCatachables.size()) catachableIndex = _benignCatachables.size()-1;
|
||
|
||
const std::string& filename = _benignCatachables[catachableIndex];
|
||
|
||
float ratio = ((float)rand() / (float)RAND_MAX);
|
||
float size = 20.0f+100.0f*((float)rand() / (float)RAND_MAX);
|
||
float angle = osg::PI*0.25f + 0.5f*osg::PI*((float)rand() / (float)RAND_MAX);
|
||
float speed = 200.0f*((float)rand() / (float)RAND_MAX);
|
||
|
||
CatchableObject* catchableObject = new CatchableObject;
|
||
osg::Vec3 position = _origin+_height+_width*ratio + osg::Vec3(0.0f,-0.7f,0.0f);
|
||
osg::Vec3 velocity(-cosf(angle)*speed,0.0f,-sinf(angle)*speed);
|
||
//std::cout<<"angle = "<<angle<<" velocity="<<velocity<<std::endl;
|
||
catchableObject->setObject(filename,"boy",position,size,velocity);
|
||
_catchableObjects.push_back(catchableObject);
|
||
|
||
float r = (float)rand() / (float)RAND_MAX;
|
||
if (r < _chanceOfExplodingAtStart)
|
||
{
|
||
catchableObject->explode();
|
||
}
|
||
|
||
_gameGroup->addChild(catchableObject->_object.get());
|
||
}
|
||
|
||
class CompileStateCallback : public osg::Operation
|
||
{
|
||
public:
|
||
CompileStateCallback(GameEventHandler* eh):
|
||
osg::Operation("CompileStateCallback", false),
|
||
_gameEventHandler(eh) {}
|
||
|
||
virtual void operator () (osg::Object* object)
|
||
{
|
||
osg::GraphicsContext* context = dynamic_cast<osg::GraphicsContext*>(object);
|
||
if (!context) return;
|
||
|
||
if (_gameEventHandler)
|
||
{
|
||
_gameEventHandler->compileGLObjects(*(context->getState()));
|
||
}
|
||
}
|
||
|
||
OpenThreads::Mutex _mutex;
|
||
GameEventHandler* _gameEventHandler;
|
||
};
|
||
|
||
int main( int argc, char **argv )
|
||
{
|
||
|
||
// use an ArgumentParser object to manage the program arguments.
|
||
osg::ArgumentParser arguments(&argc,argv);
|
||
|
||
// set up the usage document, in case we need to print out how to use this program.
|
||
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates use node masks to create stereo images.");
|
||
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] image_file_left_eye image_file_right_eye");
|
||
arguments.getApplicationUsage()->addCommandLineOption("-d <float>","Time delay in sceonds between the display of successive image pairs when in auto advance mode.");
|
||
arguments.getApplicationUsage()->addCommandLineOption("-a","Enter auto advance of image pairs on start up.");
|
||
arguments.getApplicationUsage()->addCommandLineOption("-x <float>","Horizontal offset of left and right images.");
|
||
arguments.getApplicationUsage()->addCommandLineOption("-y <float>","Vertical offset of left and right images.");
|
||
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
|
||
|
||
// construct the viewer.
|
||
osgViewer::Viewer viewer;
|
||
|
||
|
||
// register the handler to add keyboard and mosue handling.
|
||
GameEventHandler* seh = new GameEventHandler();
|
||
viewer.addEventHandler(seh);
|
||
|
||
while (arguments.read("--boy")) seh->addPlayer(GameEventHandler::PLAYER_BOY);
|
||
while (arguments.read("--girl")) seh->addPlayer(GameEventHandler::PLAYER_GIRL);
|
||
|
||
|
||
// if user request help write it out to cout.
|
||
if (arguments.read("-h") || arguments.read("--help"))
|
||
{
|
||
arguments.getApplicationUsage()->write(std::cout);
|
||
return 1;
|
||
}
|
||
|
||
// any option left unread are converted into errors to write out later.
|
||
arguments.reportRemainingOptionsAsUnrecognized();
|
||
|
||
// report any errors if they have occured when parsing the program aguments.
|
||
if (arguments.errors())
|
||
{
|
||
arguments.writeErrorMessages(std::cout);
|
||
return 1;
|
||
}
|
||
|
||
|
||
// enable the image cache so we don't need to keep loading the particle files
|
||
osgDB::ReaderWriter::Options* options = new osgDB::ReaderWriter::Options;
|
||
options->setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_IMAGES);
|
||
osgDB::Registry::instance()->setOptions(options);
|
||
|
||
|
||
// creat the scene from the file list.
|
||
osg::ref_ptr<osg::Node> rootNode = seh->createScene();
|
||
|
||
rootNode->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
|
||
|
||
//osgDB::writeNodeFile(*rootNode,"test.osg");
|
||
|
||
// set the scene to render
|
||
viewer.setSceneData(rootNode.get());
|
||
|
||
viewer.setRealizeOperation(new CompileStateCallback(seh));
|
||
|
||
double fovy, aspectRatio, zNear, zFar;
|
||
viewer.getCamera()->getProjectionMatrixAsPerspective(fovy, aspectRatio, zNear, zFar);
|
||
seh->setFOVY(osg::DegreesToRadians(fovy));
|
||
|
||
// todo for osgViewer - create default set up.
|
||
viewer.setUpViewAcrossAllScreens();
|
||
|
||
viewer.realize();
|
||
|
||
// switch off the cursor
|
||
osgViewer::Viewer::Windows windows;
|
||
viewer.getWindows(windows);
|
||
for(osgViewer::Viewer::Windows::iterator itr = windows.begin();
|
||
itr != windows.end();
|
||
++itr)
|
||
{
|
||
(*itr)->useCursor(false);
|
||
}
|
||
|
||
// todo for osgViewer - implement warp pointer that can be done relative to different coordinate frames
|
||
// viewer.requestWarpPointer(0.5f,0.5f);
|
||
|
||
while( !viewer.done() )
|
||
{
|
||
viewer.getCamera()->setViewMatrix(seh->getCameraPosition());
|
||
|
||
// fire off the cull and draw traversals of the scene.
|
||
viewer.frame();
|
||
|
||
}
|
||
|
||
return 0;
|
||
}
|