#pragma semicolon 1

#include <sourcemod>
#include <sdktools>

#define PLUGIN_NAME 	"Stop Map Music"
#define PLUGIN_VERSION 	"1.0.0"

#define MAX_EDICTS		2048

new Float:g_fCmdTime[MAXPLAYERS+1];
new g_iSoundEnts[MAX_EDICTS];
new g_iNumSounds;

public Plugin:myinfo =
{
	name = PLUGIN_NAME,
	author = "GoD-Tony",
	description = "Allows clients to stop ambient sounds played by the map",
	version = PLUGIN_VERSION,
	url = "http://www.sourcemod.net/"
};

public OnPluginStart()
{
	CreateConVar("sm_stopmusic_version", PLUGIN_VERSION, "Stop Map Music", FCVAR_PLUGIN|FCVAR_NOTIFY|FCVAR_DONTRECORD);

	HookEvent("round_start", Event_RoundStart, EventHookMode_PostNoCopy);

	RegConsoleCmd("sm_stopmusic", Command_StopMusic, "Stops map music");
}

public OnClientDisconnect_Post(client)
{
	g_fCmdTime[client] = 0.0;
}

public Event_RoundStart(Handle:event, const String:name[], bool:dontBroadcast)
{
	// Ents are recreated every round.
	g_iNumSounds = 0;

	// Find all ambient sounds played by the map.
	decl String:sSound[PLATFORM_MAX_PATH];
	new entity = INVALID_ENT_REFERENCE;

	while ((entity = FindEntityByClassname(entity, "ambient_generic")) != INVALID_ENT_REFERENCE)
	{
		GetEntPropString(entity, Prop_Data, "m_iszSound", sSound, sizeof(sSound));

		new len = strlen(sSound);
		if (len > 4 && (StrEqual(sSound[len-3], "mp3") || StrEqual(sSound[len-3], "wav")))
		{
			g_iSoundEnts[g_iNumSounds++] = EntIndexToEntRef(entity);
		}
	}
}

public Action:Command_StopMusic(client, args)
{
	// Prevent this command from being spammed.
	if (!client || g_fCmdTime[client] > GetGameTime())
		return Plugin_Handled;

	g_fCmdTime[client] = GetGameTime() + 5.0;

	PrintToChat(client, "[SM] Stopping map music...");

	// Run StopSound on all ambient sounds in the map.
	decl String:sSound[PLATFORM_MAX_PATH], entity;

	for (new i = 0; i < g_iNumSounds; i++)
	{
		entity = EntRefToEntIndex(g_iSoundEnts[i]);

		if (entity != INVALID_ENT_REFERENCE)
		{
			GetEntPropString(entity, Prop_Data, "m_iszSound", sSound, sizeof(sSound));
			Client_StopSound(client, entity, SNDCHAN_STATIC, sSound);
		}
	}

	return Plugin_Handled;
}

/**
 * Stops a sound for one client.
 *
 * @param client	Client index.
 * @param entity	Entity index.
 * @param channel	Channel number.
 * @param name		Sound file name relative to the "sounds" folder.
 * @noreturn
 */
stock Client_StopSound(client, entity, channel, const String:name[])
{
	EmitSoundToClient(client, name, entity, channel, SNDLEVEL_NONE, SND_STOP, 0.0, SNDPITCH_NORMAL, _, _, _, true);
}