[SPM] Simple Private Message

/*
	Filterscript: Simple PN

	Wäre nett, wenn das drin bleibt, denn Leute, die das raus machen, sind welche,
	die denken, sie könnten Scripten, sieht ja eh keiner :)
	Ihr dürft:
	    - Das Script benutzen
	    - Das Script verändern (ausser das hier oben!)
	Ihr dürft NICHT:
		- Das Script erneut releasen, ohne zu erwähnen, dass es von mir stammt
		- Das hier oben verändern!

	Mit freundlichen Grüßen,
	    Azure Jr.
*/
#include <a_samp>
#include <ocmd>

new axy[MAX_PLAYERS] = -1;

public OnFilterScriptInit()
{
	print("\n--------------------------------------	");
	print(" Simple PM - Simple Private Message		");
	print("             by Azure Jr.				");
	print("--------------------------------------\n	");
	return 1;
}

public OnFilterScriptExit()
{
    print("\n--------------------------------------	");
	print(" Simple PM - Simple Private Message		");
	print("             by Azure Jr.				");
	print("               entladen					");
	print("--------------------------------------\n	");
	return 1;
}

public OnPlayerConnect(playerid)
{
	axy[playerid] = -1;
	return 1;
}

ocmd:pm(playerid, params[])
{
	new id, nachricht[128], string[160];
	if(sscanf(params, "us", id,nachricht))return SendClientMessage(playerid, -1, "Benutzung: '/pm [Name/ID] [Nachricht]'");
	if(!IsPlayerConnected(id))return SendClientMessage(playerid, -1, "Der Spieler ist nicht online!");
	format(string, sizeof(string), "[PM]Nachricht von %s: %s", SpielerName(playerid), nachricht);
	SendClientMessage(id, -1, string);
	format(string, sizeof(string), "[PM]Nachricht an %s: %s", SpielerName(id), nachricht);
	SendClientMessage(playerid, -1, string);
	axy[id] = playerid;
	axy[playerid] = id;
	return 1;
}

ocmd:r(playerid, params[])return ocmd_reply(playerid, params);

ocmd:reply(playerid, params[])
{
	new nachricht[128], string[160];
	if(axy[playerid] == -1)return SendClientMessage(playerid, -1, "[PM]Du hast bisher keine Nachricht geschrieben / erhalten");
	if(sscanf(params, "s", nachricht))return SendClientMessage(playerid, -1, "Benutzung: '/r(eply) [Nachricht]'");
	format(string, sizeof(string), "[PM]Nachricht von %s: %s", SpielerName(playerid), nachricht);
	SendClientMessage(axy[playerid], -1, string);
	format(string, sizeof(string), "[PM]Nachricht an %s: %s", SpielerName(axy[playerid]), nachricht);
	SendClientMessage(playerid, -1, string);
	return 1;
}

public OnPlayerDisconnect(playerid, reason)
{
	for(new i=0;i<MAX_PLAYERS;i++)
	{
	    if(axy[i] == playerid)
	    {
	        axy[i] = INVALID_PLAYER_ID;
	    }
	}
	axy[playerid] = -1;
	return 1;
}

stock sscanf(string[], format[], {Float,_}:...)
{
	#if defined isnull
	if (isnull(string))
	#else
	if (string[0] == 0 || (string[0] == 1 && string[1] == 0))
	#endif
	{
		return format[0];
	}
	#pragma tabsize 4
	new
	formatPos = 0,
	stringPos = 0,
	paramPos = 2,
	paramCount = numargs(),
	delim = ' ';
	while (string[stringPos] && string[stringPos] <= ' ')
	{
		stringPos++;
	}
	while (paramPos < paramCount && string[stringPos])
	{
		switch (format[formatPos++])
		{
			case '\0':
			{
				return 0;
			}
			case 'i', 'd':
			{
				new
				neg = 1,
				num = 0,
				ch = string[stringPos];
				if (ch == '-')
				{
					neg = -1;
					ch = string[++stringPos];
				}
				do
				{
					stringPos++;
					if ('0' <= ch <= '9')
					{
						num = (num * 10) + (ch - '0');
					}
					else
					{
						return -1;
					}
				}
				while ((ch = string[stringPos]) > ' ' && ch != delim);
				setarg(paramPos, 0, num * neg);
			}
			case 'h', 'x':
			{
				new
				num = 0,
				ch = string[stringPos];
				do
				{
					stringPos++;
					switch (ch)
					{
						case 'x', 'X':
						{
							num = 0;
							continue;
						}
						case '0' .. '9':
						{
							num = (num << 4) | (ch - '0');
						}
						case 'a' .. 'f':
						{
							num = (num << 4) | (ch - ('a' - 10));
						}
						case 'A' .. 'F':
						{
							num = (num << 4) | (ch - ('A' - 10));
						}
						default:
						{
							return -1;
						}
					}
				}
				while ((ch = string[stringPos]) > ' ' && ch != delim);
				setarg(paramPos, 0, num);
			}
			case 'c':
			{
				setarg(paramPos, 0, string[stringPos++]);
			}
			case 'f':
			{

				new changestr[16], changepos = 0, strpos = stringPos;
				while(changepos < 16 && string[strpos] && string[strpos] != delim)
				{
					changestr[changepos++] = string[strpos++];
				}
				changestr[changepos] = '\0';
				setarg(paramPos,0,_:floatstr(changestr));
			}
			case 'p':
			{
				delim = format[formatPos++];
				continue;
			}
			case '\'':
			{
				new
				end = formatPos - 1,
				ch;
				while ((ch = format[++end]) && ch != '\'') {}
				if (!ch)
				{
					return -1;
				}
				format[end] = '\0';
				if ((ch = strfind(string, format[formatPos], false, stringPos)) == -1)
				{
					if (format[end + 1])
					{
						return -1;
					}
					return 0;
				}
				format[end] = '\'';
				stringPos = ch + (end - formatPos);
				formatPos = end + 1;
			}
			case 'u':
			{
				new
				end = stringPos - 1,
				id = 0,
				bool:num = true,
				ch;
				while ((ch = string[++end]) && ch != delim)
				{
					if (num)
					{
						if ('0' <= ch <= '9')
						{
							id = (id * 10) + (ch - '0');
						}
						else
						{
							num = false;
						}
					}
				}
				if (num && IsPlayerConnected(id))
				{
					setarg(paramPos, 0, id);
				}
				else
				{
					#if !defined foreach
					#define foreach(%1,%2) for (new %2 = 0; %2 < MAX_PLAYERS; %2++) if (IsPlayerConnected(%2))
					#define __SSCANF_FOREACH__
					#endif
					string[end] = '\0';
					num = false;
					new
					name[MAX_PLAYER_NAME];
					id = end - stringPos;
		 			for(new playerid = 0; playerid < MAX_PLAYERS; playerid++)
		 			{
						GetPlayerName(playerid, name, sizeof (name));
						if (!strcmp(name, string[stringPos], true, id))
						{
							setarg(paramPos, 0, playerid);
							num = true;
							break;
						}
					}
					if (!num)
					{
						setarg(paramPos, 0, INVALID_PLAYER_ID);
					}
					string[end] = ch;
					#if defined __SSCANF_FOREACH__
					#undef foreach
					#undef __SSCANF_FOREACH__
					#endif
				}
				stringPos = end;
			}
			case 's', 'z':
			{
				new
				i = 0,
				ch;
				if (format[formatPos])
				{
					while ((ch = string[stringPos++]) && ch != delim)
					{
						setarg(paramPos, i++, ch);
					}
					if (!i)
					{
						return -1;
					}
				}
				else
				{
					while ((ch = string[stringPos++]))
					{
						setarg(paramPos, i++, ch);
					}
				}
				stringPos--;
				setarg(paramPos, i, '\0');
			}
			default:
			{
				continue;
			}
		}
		while (string[stringPos] && string[stringPos] != delim && string[stringPos] > ' ')
		{
			stringPos++;
		}
		while (string[stringPos] && (string[stringPos] == delim || string[stringPos] <= ' '))
		{
			stringPos++;
		}
		paramPos++;
	}
	do
	{
		if ((delim = format[formatPos++]) > ' ')
		{
			if (delim == '\'')
			{
				while ((delim = format[formatPos++]) && delim != '\'') {}
			}
			else if (delim != 'z')
			{
				return delim;
			}
		}
	}
	while (delim > ' ');
	return 0;
}

stock SpielerName(playerid)
{
	new name[MAX_PLAYER_NAME];
	GetPlayerName(playerid,name,sizeof(name));
	return name;
}