# input_actions.ludic — action maps, runtime rebinding, and deterministic input
# record/replay (#7). Gameplay reads named actions, not physical keys, so a key
# is rebindable; and because the sim is deterministic in its input stream, a
# recorded run replays exactly. Driven headless off stdin (one key per poll):
#
#   printf '  xwa' | bin/ludic examples/library/input_actions.ludic   ->  1 0 1 1 0 1 0
program InputActions {
  function bi(b: bool) -> int { if b { return 1 };  return 0 }

  entry {
    Input.bind("jump", ' ')          # space triggers "jump"
    Input.bind("up", 'w')            # w triggers "up"

    # --- action map + runtime rebinding (live) ---
    Input.poll()                     # stdin: ' '
    print(bi(Input.down("jump")))    # 1 — space is bound to jump

    Input.rebind("jump", ' ', 'x')   # remap jump from space to x at runtime
    Input.poll()                     # stdin: ' '
    print(bi(Input.down("jump")))    # 0 — space no longer fires jump
    Input.poll()                     # stdin: 'x'
    print(bi(Input.down("jump")))    # 1 — x now fires jump

    # --- deterministic record / replay ---
    Input.record()                   # capture the polled keys from here
    Input.poll()                     # stdin: 'w'
    print(bi(Input.down("up")))      # 1
    Input.poll()                     # stdin: 'a'
    print(bi(Input.down("up")))      # 0

    Input.replay()                   # rewind; poll now reads the tape, not stdin
    Input.poll()
    print(bi(Input.down("up")))      # 1 — reproduces the recorded frame exactly
    Input.poll()
    print(bi(Input.down("up")))      # 0
  }
}