[IstuntmanI]

pawn Код:

stock IsPlayerInRangeOf2DPoint( playerid, Float:range, Float:px, Float:py )
{
    new Float:lfPos[ 3 ];
    GetPlayerPos( playerid, lfPos[ 0 ], lfPos[ 1 ], lfPos[ 2 ] );
    return ( VectorSize( px - lfPos[ 0 ], py - lfPos[ 1 ], 0.0 ) < range );
}

I hope it works.