godot/scene/3d/spatial_sample_player.cpp

/*************************************************************************/
/*  spatial_sample_player.cpp                                            */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
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#include "spatial_sample_player.h"

#include "servers/audio_server.h"
#include "camera.h"
#include "servers/spatial_sound_server.h"
#include "scene/scene_string_names.h"

bool SpatialSamplePlayer::_set(const StringName& p_name, const Variant& p_value) {

	String name=p_name;

	if (name==SceneStringNames::get_singleton()->play_play) {
		if (library.is_valid()) {

			String what=p_value;
			if (what=="")
				stop_all();
			else
				play(what);

			played_back=what;
		}
		return true;

	}

	return false;
}

bool SpatialSamplePlayer::_get(const StringName& p_name,Variant &r_ret) const {


	String name=p_name;

	if (name==SceneStringNames::get_singleton()->play_play) {
		r_ret=played_back;
		return true;
	}

	return false;
}

void SpatialSamplePlayer::_get_property_list(List<PropertyInfo> *p_list) const {

	String en="";
	if (library.is_valid()) {
		List<StringName> samples;
		Ref<SampleLibrary> ncl=library;
		ncl->get_sample_list(&samples);
		for (List<StringName>::Element *E=samples.front();E;E=E->next()) {

			en+=",";
			en+=E->get();
		}
	}

	p_list->push_back( PropertyInfo( Variant::STRING, "play/play", PROPERTY_HINT_ENUM, en,PROPERTY_USAGE_EDITOR|PROPERTY_USAGE_ANIMATE_AS_TRIGGER));

}
void SpatialSamplePlayer::_notification(int p_what) {


	switch(p_what) {

		case NOTIFICATION_ENTER_WORLD: {

			SpatialSoundServer::get_singleton()->source_set_polyphony(get_source_rid(),polyphony);


		} break;
	}

}

void SpatialSamplePlayer::set_sample_library(const Ref<SampleLibrary>& p_library) {

	library=p_library;
	_change_notify();
	update_configuration_warning();
}

Ref<SampleLibrary> SpatialSamplePlayer::get_sample_library() const {

	return library;
}

void SpatialSamplePlayer::set_polyphony(int p_voice_count) {

	ERR_FAIL_COND(p_voice_count<0 || p_voice_count>64);
	polyphony=p_voice_count;
	if (get_source_rid().is_valid())
		SpatialSoundServer::get_singleton()->source_set_polyphony(get_source_rid(),polyphony);

}

int SpatialSamplePlayer::get_polyphony() const {

	return polyphony;
}

SpatialSamplePlayer::VoiceID SpatialSamplePlayer::play(const String& p_sample,int p_voice) {

	if (!get_source_rid().is_valid())
		return INVALID_VOICE;
	if (library.is_null())
		return INVALID_VOICE;
	if (!library->has_sample(p_sample))
		return INVALID_VOICE;
	Ref<Sample> sample = library->get_sample(p_sample);
	float vol_change = library->sample_get_volume_db(p_sample);
	float pitch_change = library->sample_get_pitch_scale(p_sample);

	VoiceID vid = SpatialSoundServer::get_singleton()->source_play_sample(get_source_rid(),sample->get_rid(),sample->get_mix_rate()*pitch_change,p_voice);
	if (vol_change)
		SpatialSoundServer::get_singleton()->source_voice_set_volume_scale_db(get_source_rid(),vid,vol_change);

	return vid;


}
//voices
void SpatialSamplePlayer::voice_set_pitch_scale(VoiceID p_voice, float p_pitch_scale) {

	if (!get_source_rid().is_valid())
		return;

	SpatialSoundServer::get_singleton()->source_voice_set_pitch_scale(get_source_rid(),p_voice,p_pitch_scale);

}

void SpatialSamplePlayer::voice_set_volume_scale_db(VoiceID p_voice, float p_volume_db) {

	if (!get_source_rid().is_valid())
		return;
	SpatialSoundServer::get_singleton()->source_voice_set_volume_scale_db(get_source_rid(),p_voice,p_volume_db);

}

bool SpatialSamplePlayer::is_voice_active(VoiceID p_voice) const {

	if (!get_source_rid().is_valid())
		return false;
	return SpatialSoundServer::get_singleton()->source_is_voice_active(get_source_rid(),p_voice);

}

void SpatialSamplePlayer::stop_voice(VoiceID p_voice) {

	if (!get_source_rid().is_valid())
		return;
	SpatialSoundServer::get_singleton()->source_stop_voice(get_source_rid(),p_voice);

}

void SpatialSamplePlayer::stop_all() {

	if (!get_source_rid().is_valid())
		return;

	for(int i=0;i<polyphony;i++) {

		SpatialSoundServer::get_singleton()->source_stop_voice(get_source_rid(),i);
	}
}

String SpatialSamplePlayer::get_configuration_warning() const {

	if (library.is_null()) {
		return TTR("A SampleLibrary resource must be created or set in the 'samples' property in order for SpatialSamplePlayer to play sound.");
	}

	return String();
}


void SpatialSamplePlayer::_bind_methods() {


	ClassDB::bind_method(_MD("set_sample_library","library:SampleLibrary"),&SpatialSamplePlayer::set_sample_library);
	ClassDB::bind_method(_MD("get_sample_library:SampleLibrary"),&SpatialSamplePlayer::get_sample_library);

	ClassDB::bind_method(_MD("set_polyphony","voices"),&SpatialSamplePlayer::set_polyphony);
	ClassDB::bind_method(_MD("get_polyphony"),&SpatialSamplePlayer::get_polyphony);

	ClassDB::bind_method(_MD("play","sample","voice"),&SpatialSamplePlayer::play,DEFVAL(NEXT_VOICE));
	//voices,DEV
	ClassDB::bind_method(_MD("voice_set_pitch_scale","voice","ratio"),&SpatialSamplePlayer::voice_set_pitch_scale);
	ClassDB::bind_method(_MD("voice_set_volume_scale_db","voice","db"),&SpatialSamplePlayer::voice_set_volume_scale_db);

	ClassDB::bind_method(_MD("is_voice_active","voice"),&SpatialSamplePlayer::is_voice_active);
	ClassDB::bind_method(_MD("stop_voice","voice"),&SpatialSamplePlayer::stop_voice);
	ClassDB::bind_method(_MD("stop_all"),&SpatialSamplePlayer::stop_all);

	BIND_CONSTANT( INVALID_VOICE );
	BIND_CONSTANT( NEXT_VOICE );

	ADD_PROPERTY( PropertyInfo( Variant::INT, "polyphony", PROPERTY_HINT_RANGE, "1,64,1"),_SCS("set_polyphony"),_SCS("get_polyphony"));
	ADD_PROPERTY( PropertyInfo( Variant::OBJECT, "samples", PROPERTY_HINT_RESOURCE_TYPE,"SampleLibrary"),_SCS("set_sample_library"),_SCS("get_sample_library"));


}


SpatialSamplePlayer::SpatialSamplePlayer() {

	polyphony=1;

}

SpatialSamplePlayer::~SpatialSamplePlayer() {


}