if (crawl_state.arena)

    if (crawl_state.arena || crawl_state.arena_suspended)

                if (c == you.pos())

                if (c == you.pos() && !crawl_state.arena_suspended)

        if (crawl_state.arena)

        if (crawl_state.arena || crawl_state.arena_suspended)

    return (crawl_state.arena && crawl_view.in_grid_los(p))

    return ((crawl_state.arena || crawl_state.arena_suspended)
            && crawl_view.in_grid_los(p))

    if (!crawl_state.arena)

    if (!crawl_state.arena && !crawl_state.arena_suspended)

                else if (gc == you.pos() && !crawl_state.arena)

                else if (gc == you.pos() && !crawl_state.arena
                         && !crawl_state.arena_suspended)

    bool arena_suspended;   // Set if the arena has been temporarily
                            // suspended.

      map_stat_gen(false), arena(false), unicode_ok(false), glyph2strfn(NULL),
      multibyte_strlen(NULL), terminal_resize_handler(NULL),
      terminal_resize_check(NULL), doing_prev_cmd_again(false),
      prev_cmd(CMD_NO_CMD), repeat_cmd(CMD_NO_CMD), cmd_repeat_count(0),
      cmd_repeat_goal(0), prev_repetition_turn(0),
      cmd_repeat_started_unsafe(false), input_line_curr(0),
      level_annotation_shown(false)

      map_stat_gen(false), arena(false), arena_suspended(false),
      unicode_ok(false), glyph2strfn(NULL), multibyte_strlen(NULL),
      terminal_resize_handler(NULL), terminal_resize_check(NULL),
      doing_prev_cmd_again(false), prev_cmd(CMD_NO_CMD),
      repeat_cmd(CMD_NO_CMD), cmd_repeat_count(0), cmd_repeat_goal(0),
      prev_repetition_turn(0), cmd_repeat_started_unsafe(false),
      input_line_curr(0), level_annotation_shown(false)

            if (crawl_state.arena_suspended)
                need_beam_redraw = true;

    if (where == you.pos())

    if (where == you.pos() && !crawl_state.arena_suspended)

    {
        if (crawl_state.arena_suspended)
        {
            mpr("You can't move yourself into the arena.");
            more();
            return;
        }

    }

#include "command.h"

#include "macro.h"

        }
    }
    void handle_keypress(int ch)
    {
        if (ch == ESCAPE || tolower(ch) == 'q' || ch == CONTROL('G'))
        {
            contest_canceled = true;
            mpr("Canceled contest at user request");
            return;
        }
        const command_type cmd = key_to_command(ch, KC_DEFAULT);
        // We only allow a short list of commands to be used in the arena.
        switch(cmd)
        {
        case CMD_LOOK_AROUND:
        case CMD_SUSPEND_GAME:
        case CMD_REPLAY_MESSAGES:
            break;
        default:
            return;

        if (file != NULL)
            fflush(file);
        cursor_control coff(true);
        unwind_bool  ar     (crawl_state.arena,           false);
        unwind_bool  ar_susp(crawl_state.arena_suspended, true);
        unwind_var<coord_def> pos(you.position);
        coord_def yplace(dgn_find_feature_marker(DNGN_ESCAPE_HATCH_UP));
        you.moveto(yplace);
        process_command(cmd);

                    if (ch == ESCAPE || tolower(ch) == 'q' ||
                        ch == CONTROL('G'))
                    {
                        contest_canceled = true;
                        mpr("Canceled contest at user request");

                    handle_keypress(ch);
                    ASSERT(crawl_state.arena && !crawl_state.arena_suspended);
                    if (contest_canceled)

                    }

    ASSERT(!crawl_state.arena_suspended);
#ifdef WIZARD
    // The playe has wizard powers for the duration of the arena.
    unwind_bool wiz(you.wizard, true);
#endif

    ASSERT(!crawl_state.arena && !crawl_state.arena_suspended);

    ASSERT(!crawl_state.arena && !crawl_state.arena_suspended);

        if (lmove.isValid && lmove.isTarget && !lmove.isCancel)

        if (lmove.isValid && lmove.isTarget && !lmove.isCancel
            && !crawl_state.arena_suspended)
        {

        }

    ASSERT(!crawl_state.arena && !crawl_state.arena_suspended);

    ASSERT(!crawl_state.arena && !crawl_state.arena_suspended);

                                   Commands
------------------------------------------------------------------------------
There are a very limited number of command you can issue to the arena:
* You can stop the arena simulation early by pressing Escape, 'q' or
  Control-G.
* You can look at the message history like in a normal game (Control-P).
* You can look around the arena like in a normal game ('x').
* You can suspended the arena like in a normal game (Control-Z).

If the arena has lots of monsters it might take a few second before it
responds.