[Dragonsaurus]

Try to place a new function called GetVehicleXYSpeed, where to calculate only x and y axis speed.

pawn Код:

stock Float:GetVehicleXYSpeed(vehicleid,UseMPH = 0)
{
     new Float:speed_x,Float:speed_y,Float:speed_z,Float:temp_speed;
     GetVehicleVelocity(vehicleid,speed_x,speed_y,speed_z); if(UseMPH == 0)
     {
          temp_speed = floatsqroot(((speed_x*speed_x)+(speed_y*speed_y))*140.666667;
     }
     else
     {
          temp_speed = floatsqroot(((speed_x*speed_x)+(speed_y*speed_y))*85.4166672;
     }
     floatround(temp_speed,floatround_round);
     return temp_speed;
}

And use this callback to check only X and Y axis.