sound

2 files changed, 142 insertions, 0 deletions

diff --git a/src/crepe/Sound.cpp b/src/crepe/Sound.cpp
new file mode 100644
index 0000000..64fa281
--- /dev/null
+++ b/src/crepe/Sound.cpp
@@ -0,0 +1,60 @@
+#include "util/log.h"
+
+#include "Sound.h"
+#include "SoundContext.h"
+
+using namespace crepe;
+
+Sound::Sound(std::unique_ptr<Asset> res) {
+	dbg_trace();
+	this->load(std::move(res));
+}
+
+Sound::Sound(const char * src) {
+	dbg_trace();
+	this->load(std::make_unique<Asset>(src));
+}
+
+void Sound::load(std::unique_ptr<Asset> res) {
+	this->sample.load(res->canonical());
+}
+
+void Sound::play() {
+	SoundContext & ctx = SoundContext::get_instance();
+	if (ctx.engine.getPause(this->handle)) {
+		// resume if paused
+		ctx.engine.setPause(this->handle, false);
+	} else {
+		// or start new sound
+		this->handle = ctx.engine.play(this->sample, this->volume);
+		ctx.engine.setLooping(this->handle, this->looping);
+	}
+}
+
+void Sound::pause() {
+	SoundContext & ctx = SoundContext::get_instance();
+	if (ctx.engine.getPause(this->handle)) return;
+	ctx.engine.setPause(this->handle, true);
+}
+
+void Sound::rewind() {
+	SoundContext & ctx = SoundContext::get_instance();
+	if (!ctx.engine.isValidVoiceHandle(this->handle)) return;
+	ctx.engine.seek(this->handle, 0);
+}
+
+void Sound::set_volume(float volume) {
+	this->volume = volume;
+
+	SoundContext & ctx = SoundContext::get_instance();
+	if (!ctx.engine.isValidVoiceHandle(this->handle)) return;
+	ctx.engine.setVolume(this->handle, this->volume);
+}
+
+void Sound::set_looping(bool looping) {
+	this->looping = looping;
+
+	SoundContext & ctx = SoundContext::get_instance();
+	if (!ctx.engine.isValidVoiceHandle(this->handle)) return;
+	ctx.engine.setLooping(this->handle, this->looping);
+}
diff --git a/src/crepe/Sound.h b/src/crepe/Sound.h
new file mode 100644
index 0000000..b7cfbb8
--- /dev/null
+++ b/src/crepe/Sound.h
@@ -0,0 +1,82 @@
+#pragma once
+
+#include <soloud/soloud.h>
+#include <soloud/soloud_wav.h>
+
+#include <memory>
+
+#include "Asset.h"
+
+namespace crepe {
+
+class Sound {
+public:
+	/**
+	 * \brief Pause this sample
+	 *
+	 * Pauses this sound if it is playing, or does nothing if it is already
+	 * paused. The playhead position is saved, such that calling \c play() after
+	 * this function makes the sound resume.
+	 */
+	void pause();
+	/**
+	 * \brief Play this sample
+	 *
+	 * Resume playback if this sound is paused, or start from the beginning of
+	 * the sample.
+	 *
+	 * \note This class only saves a reference to the most recent 'voice' of this
+	 * sound. Calling \c play() while the sound is already playing causes
+	 * multiple instances of the sample to play simultaniously. The sample
+	 * started last is the one that is controlled afterwards.
+	 */
+	void play();
+	/**
+	 * \brief Reset playhead position
+	 * 
+	 * Resets the playhead position so that calling \c play() after this function
+	 * makes it play from the start of the sample. If the sound is not paused
+	 * before calling this function, this function will stop playback.
+	 */
+	void rewind();
+	/**
+	 * \brief Set playback volume / gain
+	 *
+	 * \param volume  Volume (0 = muted, 1 = full volume)
+	 */
+	void set_volume(float volume);
+	/**
+	 * \brief Get playback volume / gain
+	 *
+	 * \return Volume
+	 */
+	float get_volume() const { return this->volume; }
+	/**
+	 * \brief Set looping behavior for this sample
+	 *
+	 * \param looping  Looping behavior (false = one-shot, true = loop)
+	 */
+	void set_looping(bool looping);
+	/**
+	 * \brief Get looping behavior
+	 *
+	 * \return true if looping, false if one-shot
+	 */
+	bool get_looping() const { return this->looping; }
+
+public:
+	Sound(const char * src);
+	Sound(std::unique_ptr<Asset> res);
+
+private:
+	void load(std::unique_ptr<Asset> res);
+
+private:
+	SoLoud::Wav sample;
+	SoLoud::handle handle;
+
+	float volume = 1.0f;
+	bool looping = false;
+};
+
+} // namespace crepe