void WelcomeScene::OnButtonClicked(int id) {
SceneManager *mgr = SceneManager::GetInstance();
if (id == mPlayButtonId) {
mgr->RequestNewScene(new PlayScene());
} else if (id == mStoryButtonId) {
mgr->RequestNewScene((new DialogScene())->SetText(BLURB_STORY)->SetSingleButton(S_OK,
DialogScene::ACTION_RETURN));
} else if (id == mAboutButtonId) {
mgr->RequestNewScene((new DialogScene())->SetText(BLURB_ABOUT)->SetSingleButton(S_OK,
DialogScene::ACTION_RETURN));
}
}
void NativeEngine::DoFrame() {
// prepare to render (create context, surfaces, etc, if needed)
if (!PrepareToRender()) {
// not ready
VLOGD("NativeEngine: preparation to render failed.");
return;
}
SceneManager *mgr = SceneManager::GetInstance();
// how big is the surface? We query every frame because it's cheap, and some
// strange devices out there change the surface size without calling any callbacks...
int width, height;
eglQuerySurface(mEglDisplay, mEglSurface, EGL_WIDTH, &width);
eglQuerySurface(mEglDisplay, mEglSurface, EGL_HEIGHT, &height);
if (width != mSurfWidth || height != mSurfHeight) {
// notify scene manager that the surface has changed size
LOGD("NativeEngine: surface changed size %dx%d --> %dx%d", mSurfWidth, mSurfHeight,
width, height);
mSurfWidth = width;
mSurfHeight = height;
mgr->SetScreenSize(mSurfWidth, mSurfHeight);
glViewport(0, 0, mSurfWidth, mSurfHeight);
}
// if this is the first frame, install the welcome scene
if (mIsFirstFrame) {
mIsFirstFrame = false;
mgr->RequestNewScene(new WelcomeScene());
}
// render!
mgr->DoFrame();
// swap buffers
if (EGL_FALSE == eglSwapBuffers(mEglDisplay, mEglSurface)) {
// failed to swap buffers...
LOGW("NativeEngine: eglSwapBuffers failed, EGL error %d", eglGetError());
HandleEglError(eglGetError());
}
// print out GL errors, if any
GLenum e;
static int errorsPrinted = 0;
while ((e = glGetError()) != GL_NO_ERROR) {
if (errorsPrinted < MAX_GL_ERRORS) {
_log_opengl_error(e);
++errorsPrinted;
if (errorsPrinted >= MAX_GL_ERRORS) {
LOGE("*** NativeEngine: TOO MANY OPENGL ERRORS. NO LONGER PRINTING.");
}
}
}
}