Rename sound.h to sound_spec.h

To prevent incude conflicts

src/sound_spec.h

@@ -0,0 +1,70 @@
+// Luanti
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+#pragma once
+
+#include <string>
+#include "util/serialize.h"
+#include "irrlichttypes_bloated.h"
+
+/**
+ * Describes the sound information for playback.
+ * Positional handling is done separately.
+ *
+ * `SimpleSoundSpec`, as used by modding, is a `SoundSpec` with only name, fain,
+ * pitch and fade.
+*/
+struct SoundSpec
+{
+	SoundSpec(std::string_view name = "", float gain = 1.0f,
+			bool loop = false, float fade = 0.0f, float pitch = 1.0f,
+			float start_time = 0.0f) :
+			name(name), gain(gain), fade(fade), pitch(pitch), start_time(start_time),
+			loop(loop)
+	{
+	}
+
+	bool exists() const { return !name.empty(); }
+
+	/**
+	 * Serialize a `SimpleSoundSpec`.
+	 */
+	void serializeSimple(std::ostream &os, u16 protocol_version) const
+	{
+		os << serializeString16(name);
+		writeF32(os, gain);
+		writeF32(os, pitch);
+		writeF32(os, fade);
+	}
+
+	/**
+	 * Deserialize a `SimpleSoundSpec`.
+	 */
+	void deSerializeSimple(std::istream &is, u16 protocol_version)
+	{
+		name = deSerializeString16(is);
+		gain = readF32(is);
+		pitch = readF32(is);
+		fade = readF32(is);
+	}
+
+	// Name of the sound-group
+	std::string name;
+	float gain = 1.0f;
+	float fade = 0.0f;
+	float pitch = 1.0f;
+	float start_time = 0.0f;
+	bool loop = false;
+	// If true, a local fallback (ie. from the user's sound pack) is used if the
+	// sound-group does not exist.
+	bool use_local_fallback = true;
+};
+
+
+// The order must not be changed. This is sent over the network.
+enum class SoundLocation : u8 {
+	Local,
+	Position,
+	Object
+};