[Lorenc_]

pawn Код:

new Float: fA, Float: X, Float: Y, Float: Z, Float: nX, Float: nY;
GetPlayerFacingAngle(npcid, fA);
GetPlayerPos(npcid, X, Y, Z);

nX = X + ( 2.0 * floatcos(fA, degrees) );
nY = Y + ( 2.0 * floatsin(fA, degrees) );

if(IsPlayerInRangeOfPoint(playerid, nX, nY, Z)) return true; // his at the loc

Basic structure. Not tested.