#include <sourcemod>
#include <sdktools>

Handle g_hSDK_GetNumPlayers = null;

public void OnPluginStart() {
	StartPrepSDKCall(SDKCall_Server);
	PrepSDKCall_SetSignature(SDKLibrary_Engine, "@_ZN11CBaseServer13GetNumPlayersEv", 0);
	PrepSDKCall_SetReturnInfo(SDKType_PlainOldData, SDKPass_Plain);
	g_hSDK_GetNumPlayers = EndPrepSDKCall();

	RegConsoleCmd("sm_numplayers", NumPlayers);
}

public Action NumPlayers(int client, int args)
{
	PrintToChatAll("NumPlayers: %i", SDKCall(g_hSDK_GetNumPlayers));
	PrintToServer("NumPlayers: %i", SDKCall(g_hSDK_GetNumPlayers));

	return Plugin_Handled;
}