int _tmain(int argc, _TCHAR* argv[])
{
// construct the viewer
osg::ref_ptr<osgViewer::Viewer> rViewer = new osgViewer::Viewer;
// set up the camera manipulators.
{
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new osgGA::TrackballManipulator() );
keyswitchManipulator->addMatrixManipulator( '2', "Flight", new osgGA::FlightManipulator() );
keyswitchManipulator->addMatrixManipulator( '3', "Drive", new osgGA::DriveManipulator() );
keyswitchManipulator->addMatrixManipulator( '4', "Terrain", new osgGA::TerrainManipulator() );
rViewer->setCameraManipulator( keyswitchManipulator.get() );
}
// make the viewer create a 800x600 window and position it at 32, 32
rViewer->setUpViewInWindow( 32, 32, 800, 600 );
osg::Group* pGroup = new osg::Group;
pGroup->addChild( createScene() );
// set the scene-graph data the viewer will render
rViewer->setSceneData( pGroup );
rViewer->setCameraManipulator( new osgGA::TrackballManipulator );
pGroup->addChild( createClouds() );
// execute main loop
return rViewer->run();
}
bool ListWeatherCloud::logicClouds(int base_cloudiness_a, long cycle_max_a){
int cloudiness;
cycle_max = cycle_max_a + randBetween(-5000,5000); // TODO: needs adjustment
cloudiness=base_cloudiness_a + randBetween(-40, 40);
cloud_distance = 800 / cloudiness;
if (cloud_list.empty()){
const int half_max_cycle = cycle_max/2;
createClouds(cloudiness);
// rain variable: time_of_rain
// determines after which time of the cycle it should
// start to rain; no rain if time_of_rain>cycle_max;
// depends both on cloudiness and some randomness
time_of_rain = cycle_max * ( 10/cloudiness) + randBetween(0, half_max_cycle);
// determine if it should be strong rainfall, let it depend on cloudiness and time_of_rain
if ((cloudiness*time_of_rain/cycle_max>=30)) is_strong_rainfall = true;
// instantiate RenderDevice Images
if (!spr_flake) {
Image *img_rainfall = NULL;
if (is_snow){
img_rainfall = render_device->loadImage("images/weather/snow_transparent.png",
"Couldn't load snow image!", false);
}
else{
img_rainfall = render_device->loadImage("images/weather/rain.png",
"Couldn't load rain image!", false);
}
if (img_rainfall){
spr_flake = img_rainfall->createSprite();
img_rainfall->unref();
}
}
cycle_i = 0;
}
return true;
}
