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#include "screen_practice.hh"
#include "audio.hh"
#include "util.hh"
#include "fs.hh"
#include "controllers.hh"
#include "theme.hh"
#include "progressbar.hh"
ScreenPractice::ScreenPractice(std::string const& name, Audio& audio):
Screen(name), m_audio(audio)
{}
void ScreenPractice::enter() {
m_audio.playMusic(findFile("practice.ogg"));
// draw vu meters
for (unsigned int i = 0, mics = m_audio.analyzers().size(); i < mics; ++i) {
auto progressBarPtr = std::unique_ptr<ProgressBar>(std::make_unique<ProgressBar>(findFile("vumeter_bg.svg"), findFile("vumeter_fg.svg"), ProgressBar::VERTICAL, 0.136, 0.023));
m_vumeters.push_back(std::move(progressBarPtr));
}
m_samples.push_back("drum bass");
m_samples.push_back("drum snare");
m_samples.push_back("drum hi-hat");
m_samples.push_back("drum tom1");
m_samples.push_back("drum cymbal");
//m_samples.push_back("drum tom2");
reloadGL();
Game::getSingletonPtr()->controllers.enableEvents(true);
}
void ScreenPractice::reloadGL() {
theme = std::make_unique<ThemePractice>();
}
void ScreenPractice::exit() {
Game::getSingletonPtr()->controllers.enableEvents(false);
m_vumeters.clear();
m_samples.clear();
theme.reset();
}
void ScreenPractice::manageEvent(input::NavEvent const& event) {
Game* gm = Game::getSingletonPtr();
input::NavButton nav = event.button;
if (nav == input::NAV_CANCEL || nav == input::NAV_START) gm->activateScreen("Intro");
else if (nav == input::NAV_PAUSE) m_audio.togglePause();
// Process all instrument events that are available, then throw away the instruments...
input::DevicePtr dev = gm->controllers.registerDevice(event.source);
if (dev) {
for (input::Event ev; dev->getEvent(ev);) {
if (ev.value == 0.0) continue;
if (dev->type == input::DEVTYPE_DANCEPAD) {}
else if (dev->type == input::DEVTYPE_GUITAR) {}
else if (dev->type == input::DEVTYPE_DRUMS) m_audio.playSample(m_samples[ev.button.num() % m_samples.size()]);
}
}
// TODO: We could store the DevicePtrs and display the instruments on screen in a meaningful way
// Note: Alternatively this could be done via listening to NavEvents and not even registering the devices, simplifying the above processing.
}
void ScreenPractice::draw() {
theme->bg.draw();
this->draw_analyzers();
}
void ScreenPractice::draw_analyzers() {
theme->note.dimensions.fixedHeight(0.03f);
theme->sharp.dimensions.fixedHeight(0.09f);
auto& analyzers = m_audio.analyzers();
if (analyzers.empty()) return;
MusicalScale scale;
double textPower = -getInf();
double textFreq = 0.0;
for (unsigned int i = 0; i < analyzers.size(); ++i) {
Analyzer& analyzer = analyzers[i];
analyzer.process();
Tone const* tone = analyzer.findTone();
double freq = (tone ? tone->freq : 0.0);
if (tone && tone->db > textPower) {
textPower = tone->db;
textFreq = freq;
}
// getPeak returns 0.0 when clipping, negative values when not that loud.
// Normalizing to [0,1], where 0 is -43 dB or less (to match the vumeter graphic)
m_vumeters[i]->dimensions.screenBottom().left(-0.4 + i * 0.08).fixedWidth(0.04); //0.08 was originally 0.2. Now 11 in a row fits
m_vumeters[i]->draw(analyzer.getPeak() / 43.0 + 1.0);
if (freq != 0.0) {
Analyzer::tones_t tones = analyzer.getTones();
for (Analyzer::tones_t::const_iterator t = tones.begin(); t != tones.end(); ++t) {
if (t->age < Tone::MINAGE) continue;
if (!scale.setFreq(t->freq).isValid()) continue;
double line = scale.getNoteLine() + 0.4 * scale.getNoteOffset();
float posXnote = -0.25 + 0.2 * i + 0.002 * t->stabledb; // Wiggle horizontally based on volume
float posYnote = -0.03 - line * 0.015; // On treble key (C4), plus offset (lines)
theme->note.dimensions.left(posXnote).center(posYnote);
theme->note.draw();
// Draw # for sharp notes
if (scale.isSharp()) {
theme->sharp.dimensions.right(posXnote).center(posYnote);
theme->sharp.draw();
}
}
}
}
// Display note and frequency
if (textFreq > 0.0) theme->note_txt.draw(scale.setFreq(textFreq).getStr());
}
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