void SpriteTestApp::draw()
{
// clear out the window with black
gl::clear( Color( 0, 0, 0 ) );
gl::disable( GL_TEXTURE_2D );
gl::drawLine( Vec2f{ getWindowWidth() / 2, 0 }, Vec2f{ getWindowWidth() / 2, getWindowHeight() } );
mSpriteSheet->enableAndBind();
mSimpleRenderer.render();
mSpriteAnimation.render();
gl::pushModelView();
gl::translate( Vec2f{ getWindowWidth() / 2, 0.0f } );
mRenderer2dStrip.render();
mSpriteAnimation.render();
gl::popModelView();
}
void RendererTestApp::setup()
{
mRenderFunctions = {
{ "Batch 2d", [=](){ mRenderer2dStrip.update(); mRenderer2dStrip.render(); } },
{ "VBO 2d", [=](){ mRenderer2dStripVbo.update(); mRenderer2dStripVbo.render(); } },
{ "Simple", [=](){ mSimpleRenderer.render(); } },
{ "Batch 2d (no updates)", [=](){ mRenderer2dStrip.render(); } },
{ "VBO 2d (no updates)", [=](){ mRenderer2dStripVbo.render(); } },
};
mRenderFn = mRenderFunctions.begin();
gl::enableVerticalSync();
Rand r;
for( auto &box : mBoxes )
{
box.setColor( ColorA{ CM_HSV, r.nextFloat( 1.0f ), 0.9f, 0.9f, 1.0f } );
box.setPos( Vec2f{ r.nextFloat(getWindowWidth()), r.nextFloat(getWindowHeight()) } );
box.setRotation( r.nextFloat( M_PI * 2 ) );
mRenderer2dStrip.add( &box );
mSimpleRenderer.add( &box );
mRenderer2dStripVbo.add( &box );
}
// We perform the cast since we know what type of things we stored in each renderer
// A type-safe way could be to assign y to each objects layer and then sort by layer
Vec2f center = getWindowCenter();
auto vortex_simple = [center]( const SimpleRenderer::Renderable *lhs, const SimpleRenderer::Renderable *rhs )
{
return static_cast<const Box*>( lhs )->getPos().distance(center) <
static_cast<const Box*>( rhs )->getPos().distance(center);
};
auto vortex_triangle = [center]( const BatchRenderer2d::Renderable *lhs, const BatchRenderer2d::Renderable *rhs )
{
return static_cast<const Box*>( lhs )->getPos().distance(center) <
static_cast<const Box*>( rhs )->getPos().distance(center);
};
mSimpleRenderer.sort( vortex_simple );
mRenderer2dStrip.sort( vortex_triangle );
mRenderer2dStripVbo.sort( vortex_triangle );
getWindow()->getSignalKeyUp().connect( [this](KeyEvent &event){ if( event.getCode() == KeyEvent::KEY_SPACE ){ swapRenderer(); } } );
getWindow()->getSignalTouchesEnded().connect( [this](TouchEvent &event){ swapRenderer(); } );
}
