public OnVehicleDamageStatusUpdate(vehicleid, playerid)
{
    new Float:value, Float:health;
    GetPlayerHealth(playerid, health);
    
    if(GetPlayerSpeed(playerid, true) <= 50)
    {
        value = 25;
    }
    else if(GetPlayerSpeed(playerid, true) <= 100)
    {
        value = 50;
    }
    else if(GetPlayerSpeed(playerid, true) <= 150)
    {
        value = 75;
    }
    else
    {
        value = 100;
    }
    
    SetPlayerHealth(playerid, -value);
    return 1;
}

stock GetPlayerSpeed(playerid, get3d)
{
    new Float: x, Float: y, Float: z;
    if(IsPlayerInAnyVehicle (playerid)) GetVehicleVelocity(GetPlayerVehicleID(playerid), x, y, z );
    else GetPlayerVelocity (playerid, x, y, z);
    return Speed(x, y, z, 100.0, get3d);
}