More about Command Loops

as

Sometimes you want to run the same command in different situations and switch to or from it with a different name. You could do this by creating a new command that calls the first one, but you can also use as to give a command a different name.

# explore command and health var not shown.
- flee(distance = 100):
  turn -player
  forward distance

loop:
  nil -> explore

  if player.near and health > 2:
    explore -> flee

  elif player.near and health <= 2:
    explore ==> flee(200) as fly_you_fool

  if player.far(25):
    flee -> explore

  if player.far(150):
    fly_you_fool -> explore

Special from commands

Often loops will switch from a single command to another. However, sometimes you want to allow switching from a variety of commands.

• any -> some_command - switch from any command to the target command. This will switch (and run any switch block) even if we're already running the target command. In this example we used a little switch arrow, so it still won't happen until the current command actually completes.

• others -> some_command - Same as any, but it excludes the target command.

• (command1, command2) - Switch from multiple commands by listing them in a tuple.

• (any, -command2, -command3) - Switch from any command except command2 and command3.

When do command loops run?

A command loops will run whenever the current command finishes. In addition, command loops will run every 0.5 seconds, and when something "interesting" happens. Currently only the start and end of a collision with the player is "interesting" and will cause the loop to be run immediately, but this will be expanded.

When using child loops, the top level loop runs first, then walks down the stack of loops until the current loop is reached.