[Mauzen]

Do not change x or y, this will just move the starting point (player position) a bit. Change a like i explained:

pawn Код:

forward GetXYInFrontOfPlayer2(playerid, &Float, &Float:y, Float:distance, Float:angle); 
public GetXYInFrontOfPlayer2(playerid, &Float, &Float:y, Float:distance, Float:angle) {
    new Float:a; 
    GetPlayerPos(playerid, x, y, a); 
    GetPlayerFacingAngle(playerid, a);
    if (GetPlayerVehicleID(playerid)) 
        GetVehicleZAngle(GetPlayerVehicleID(playerid), a);
    a += angle;
    x += (distance * floatsin(-a, degrees));
    y += (distance * floatcos(-a, degrees));
}

angle=0 : front of the player
angle>0 : degrees to the left side
angle<0 : right side (maybe the other way round, test it)