ds@1952: /**
ds@1952:  * vim: set ts=4 :
ds@1952:  * =============================================================================
ds@1952:  * SourceMod Random Map Cycle Plugin
ds@1952:  * Randomly picks a map from the mapcycle.
ds@1952:  *
ds@1952:  * SourceMod (C)2004-2008 AlliedModders LLC.  All rights reserved.
ds@1952:  * =============================================================================
ds@1952:  *
ds@1952:  * This program is free software; you can redistribute it and/or modify it under
ds@1952:  * the terms of the GNU General Public License, version 3.0, as published by the
ds@1952:  * Free Software Foundation.
ds@1952:  * 
ds@1952:  * This program is distributed in the hope that it will be useful, but WITHOUT
ds@1952:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
ds@1952:  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
ds@1952:  * details.
ds@1952:  *
ds@1952:  * You should have received a copy of the GNU General Public License along with
ds@1952:  * this program.  If not, see <http://www.gnu.org/licenses/>.
ds@1952:  *
ds@1952:  * As a special exception, AlliedModders LLC gives you permission to link the
ds@1952:  * code of this program (as well as its derivative works) to "Half-Life 2," the
ds@1952:  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
ds@1952:  * by the Valve Corporation.  You must obey the GNU General Public License in
ds@1952:  * all respects for all other code used.  Additionally, AlliedModders LLC grants
ds@1952:  * this exception to all derivative works.  AlliedModders LLC defines further
ds@1952:  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
ds@1952:  * or <http://www.sourcemod.net/license.php>.
ds@1952:  *
ds@1952:  * Version: $Id$
ds@1952:  */
ds@1952: 
ds@1952: #pragma semicolon 1
ds@1952: #include <sourcemod>
ds@1952: 
ds@1952: public Plugin:myinfo =
ds@1952: {
ds@1952: 	name = "RandomCycle",
ds@1952: 	author = "AlliedModders LLC",
ds@1952: 	description = "Randomly chooses the next map.",
ds@1952: 	version = SOURCEMOD_VERSION,
ds@1952: 	url = "http://www.sourcemod.net/"
ds@1952: };
ds@1952: 
ds@1952: new Handle:g_Cvar_Nextmap = INVALID_HANDLE;
ds@1952: new Handle:g_Cvar_ExcludeMaps = INVALID_HANDLE;
ds@1952: 
ds@1952: new Handle:g_MapList = INVALID_HANDLE;
ds@1952: new Handle:g_OldMapList = INVALID_HANDLE;
ds@1952: new g_mapListSerial = -1;
ds@1952: 
ds@1952: public OnPluginStart()
ds@1952: {
ds@1952: 	new arraySize = ByteCountToCells(33);	
ds@1952: 	g_MapList = CreateArray(arraySize);
ds@1952: 	g_OldMapList = CreateArray(arraySize);
ds@1952: 
ds@1952: 	g_Cvar_ExcludeMaps = CreateConVar("sm_randomcycle_exclude", "5", "Specifies how many past maps to exclude from the vote.", _, true, 0.0);
ds@1952: 	
ds@1952: 	AutoExecConfig(true, "randomcycle");
ds@1952: }
ds@1952: 
ds@1952: public OnConfigsExecuted()
ds@1952: {
ds@1952: 	g_Cvar_Nextmap = FindConVar("sm_nextmap");
ds@1952: 
ds@1952: 	if (g_Cvar_Nextmap == INVALID_HANDLE)
ds@1952: 	{
ds@1952: 		LogError("FATAL: Cannot find sm_nextmap cvar. RandomCycle not loaded.");
ds@1952: 		SetFailState("sm_nextmap not found");
ds@1952: 	}
ds@1952: 	
ds@1952: 	if (ReadMapList(g_MapList, 
ds@1952: 					g_mapListSerial, 
ds@1952: 					"randomcycle", 
ds@1952: 					MAPLIST_FLAG_CLEARARRAY|MAPLIST_FLAG_MAPSFOLDER)
ds@1952: 		== INVALID_HANDLE)
ds@1952: 	{
ds@1952: 		if (g_mapListSerial == -1)
ds@1952: 		{
ds@1952: 			LogError("Unable to create a valid map list.");
ds@1952: 		}
ds@1952: 	}
ds@1952: 	
ds@1952: 	CreateTimer(5.0, Timer_RandomizeNextmap); // Small delay to give Nextmap time to complete OnMapStart()
ds@1952: }
ds@1952: 
ds@1952: public Action:Timer_RandomizeNextmap(Handle:timer)
ds@1952: {
ds@1952: 	decl String:map[32];
ds@1952: 
ds@1952: 	new bool:oldMaps = false;
ds@1952: 	if (GetConVarInt(g_Cvar_ExcludeMaps) && GetArraySize(g_MapList) > GetConVarInt(g_Cvar_ExcludeMaps))
ds@1952: 	{
ds@1952: 		oldMaps = true;
ds@1952: 	}
ds@1952: 	
ds@1952: 	new b = GetRandomInt(0, GetArraySize(g_MapList) - 1);
ds@1952: 	GetArrayString(g_MapList, b, map, sizeof(map));
ds@1952: 
ds@1952: 	while (oldMaps && FindStringInArray(g_OldMapList, map) != -1)
ds@1952: 	{
ds@1952: 		b = GetRandomInt(0, GetArraySize(g_MapList) - 1);
ds@1952: 		GetArrayString(g_MapList, b, map, sizeof(map));
ds@1952: 	}
ds@1952: 	
ds@1952: 	SetConVarString(g_Cvar_Nextmap, map);
ds@1952: 	PushArrayString(g_OldMapList, map);
ds@1952: 
ds@1952: 	if (GetArraySize(g_OldMapList) > GetConVarInt(g_Cvar_ExcludeMaps))
ds@1952: 	{
ds@1952: 		RemoveFromArray(g_OldMapList, 0);
ds@1952: 	}
ds@1952: 
ds@1952: 	LogMessage("RandomCycle has chosen %s for the nextmap.", map);	
ds@1952: 
ds@1952: 	return Plugin_Stop;
ds@1952: }