stock draw_train_controls(id, TrainControlFlags:speed = TrainControls_None, bool:reliable = true)
Client index or 0 for all clients
If true, the message will be sent via the reliable
channel, otherwise it will use the unreliable one
Displays the speed bar used for controlling a train.
This stock isn't available in Day of Defeat.
0 if "id" is non-zero and the client isn't connected,