godot/scene/resources/sample_library.cpp

/*************************************************************************/
/*  sample_library.cpp                                                   */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
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/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
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/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
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/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/*************************************************************************/
#include "sample_library.h"

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

	if (String(p_name).begins_with("samples/")) {

		String name = String(p_name).get_slicec('/', 1);
		if (p_value.get_type() == Variant::NIL)
			sample_map.erase(name);
		else {
			SampleData sd;

			if (p_value.get_type() == Variant::OBJECT)
				sd.sample = p_value;
			else if (p_value.get_type() == Variant::DICTIONARY) {

				Dictionary d = p_value;
				ERR_FAIL_COND_V(!d.has("sample"), false);
				ERR_FAIL_COND_V(!d.has("pitch"), false);
				ERR_FAIL_COND_V(!d.has("db"), false);
				sd.sample = d["sample"];
				sd.pitch_scale = d["pitch"];
				sd.db = d["db"];
				sd.priority = d.has("priority") ? d["priority"] : Variant(0); // For libraries before priority was introduced
			}

			sample_map[name] = sd;
		}

		return true;
	}

	return false;
}

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

	if (String(p_name).begins_with("samples/")) {

		String name = String(p_name).get_slicec('/', 1);
		if (sample_map.has(name)) {
			Dictionary d;
			d["sample"] = sample_map[name].sample;
			d["pitch"] = sample_map[name].pitch_scale;
			d["db"] = sample_map[name].db;
			d["priority"] = sample_map[name].priority;
			r_ret = d;
		} else {
			return false;
		}

		return true;
	}

	return false;
}

void SampleLibrary::add_sample(const StringName &p_name, const Ref<Sample> &p_sample) {

	ERR_FAIL_COND(p_sample.is_null());

	SampleData sd;
	sd.sample = p_sample;
	sample_map[p_name] = sd;
}

Ref<Sample> SampleLibrary::get_sample(const StringName &p_name) const {

	ERR_FAIL_COND_V(!sample_map.has(p_name), Ref<Sample>());

	return sample_map[p_name].sample;
}

void SampleLibrary::remove_sample(const StringName &p_name) {

	sample_map.erase(p_name);
}

void SampleLibrary::get_sample_list(List<StringName> *p_samples) const {

	for (const Map<StringName, SampleData>::Element *E = sample_map.front(); E; E = E->next()) {

		p_samples->push_back(E->key());
	}
}

bool SampleLibrary::has_sample(const StringName &p_name) const {

	return sample_map.has(p_name);
}

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

	List<PropertyInfo> tpl;
	for (Map<StringName, SampleData>::Element *E = sample_map.front(); E; E = E->next()) {

		tpl.push_back(PropertyInfo(Variant::DICTIONARY, "samples/" + E->key(), PROPERTY_HINT_RESOURCE_TYPE, "Sample", PROPERTY_USAGE_NOEDITOR));
	}

	tpl.sort();
	//sort so order is kept
	for (List<PropertyInfo>::Element *E = tpl.front(); E; E = E->next()) {
		p_list->push_back(E->get());
	}
}

StringName SampleLibrary::get_sample_idx(int p_idx) const {

	int idx = 0;
	for (Map<StringName, SampleData>::Element *E = sample_map.front(); E; E = E->next()) {

		if (p_idx == idx)
			return E->key();
		idx++;
	}

	return "";
}

void SampleLibrary::sample_set_volume_db(const StringName &p_name, float p_db) {

	ERR_FAIL_COND(!sample_map.has(p_name));
	sample_map[p_name].db = p_db;
}

float SampleLibrary::sample_get_volume_db(const StringName &p_name) const {

	ERR_FAIL_COND_V(!sample_map.has(p_name), 0);

	return sample_map[p_name].db;
}

void SampleLibrary::sample_set_pitch_scale(const StringName &p_name, float p_pitch) {

	ERR_FAIL_COND(!sample_map.has(p_name));

	sample_map[p_name].pitch_scale = p_pitch;
}

float SampleLibrary::sample_get_pitch_scale(const StringName &p_name) const {

	ERR_FAIL_COND_V(!sample_map.has(p_name), 0);

	return sample_map[p_name].pitch_scale;
}

void SampleLibrary::sample_set_priority(const StringName &p_name, int p_priority) {

	ERR_FAIL_COND(!sample_map.has(p_name));
	sample_map[p_name].priority = p_priority;
}

int SampleLibrary::sample_get_priority(const StringName &p_name) const {

	ERR_FAIL_COND_V(!sample_map.has(p_name), 0);

	return sample_map[p_name].priority;
}

Array SampleLibrary::_get_sample_list() const {

	List<StringName> snames;
	get_sample_list(&snames);

	snames.sort_custom<StringName::AlphCompare>();

	Array ret;
	for (List<StringName>::Element *E = snames.front(); E; E = E->next()) {
		ret.push_back(E->get());
	}

	return ret;
}

void SampleLibrary::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("add_sample", "name", "sample:Sample"), &SampleLibrary::add_sample);
	ObjectTypeDB::bind_method(_MD("get_sample:Sample", "name"), &SampleLibrary::get_sample);
	ObjectTypeDB::bind_method(_MD("has_sample", "name"), &SampleLibrary::has_sample);
	ObjectTypeDB::bind_method(_MD("remove_sample", "name"), &SampleLibrary::remove_sample);

	ObjectTypeDB::bind_method(_MD("get_sample_list"), &SampleLibrary::_get_sample_list);

	ObjectTypeDB::bind_method(_MD("sample_set_volume_db", "name", "db"), &SampleLibrary::sample_set_volume_db);
	ObjectTypeDB::bind_method(_MD("sample_get_volume_db", "name"), &SampleLibrary::sample_get_volume_db);

	ObjectTypeDB::bind_method(_MD("sample_set_pitch_scale", "name", "pitch"), &SampleLibrary::sample_set_pitch_scale);
	ObjectTypeDB::bind_method(_MD("sample_get_pitch_scale", "name"), &SampleLibrary::sample_get_pitch_scale);

	ObjectTypeDB::bind_method(_MD("sample_set_priority", "name", "priority"), &SampleLibrary::sample_set_priority);
	ObjectTypeDB::bind_method(_MD("sample_get_priority", "name"), &SampleLibrary::sample_get_priority);
}

SampleLibrary::SampleLibrary() {
}