/*
* Request a "movement" direction (1,2,3,4,6,7,8,9) from the user.
*
* Return true if a direction was chosen, otherwise return false.
*
* This function should be used for all "repeatable" commands, such as
* run, walk, open, close, bash, disarm, spike, tunnel, etc, as well
* as all commands which must reference a grid adjacent to the player,
* and which may not reference the grid under the player.
*
* Directions "5" and "0" are illegal and will not be accepted.
*
* This function tracks and uses the "global direction", and uses
* that as the "desired direction", if it is set.
*/
public static bool get_rep_dir(out int dp)
{
int dir = 0;
ui_event ke;
/* Initialize */
dp = 0;
/* Get a direction */
while (dir == 0)
{
/* Paranoia XXX XXX XXX */
Utilities.message_flush();
/* Get first keypress - the first test is to avoid displaying the
* prompt for direction if there's already a keypress queued up
* and waiting - this just avoids a flickering prompt if there is
* a "lazy" movement delay. */
Utilities.inkey_scan = Misc.SCAN_INSTANT;
ke = Utilities.inkey_ex();
Utilities.inkey_scan = Misc.SCAN_OFF;
if (ke.type == ui_event_type.EVT_NONE || (ke.type == ui_event_type.EVT_KBRD && Utilities.target_dir(ke.key) == 0))
{
Utilities.prt("Direction or <click> (Escape to cancel)? ", 0, 0);
ke = Utilities.inkey_ex();
}
/* Check mouse coordinates */
if (ke.type == ui_event_type.EVT_MOUSE)
{
/*if (ke.button) */
{
int y = Misc.KEY_GRID_Y(ke);
int x = Misc.KEY_GRID_X(ke);
Loc from = new Loc(Misc.p_ptr.px, Misc.p_ptr.py);
Loc to = new Loc(x, y);
throw new NotImplementedException();
//dir = pathfind_direction_to(from, to);
}
}
/* Get other keypresses until a direction is chosen. */
else if (ke.type == ui_event_type.EVT_KBRD)
{
int keypresses_handled = 0;
while (ke.type == ui_event_type.EVT_KBRD && ke.key.code != 0)
{
int this_dir;
if (ke.key.code == keycode_t.ESCAPE)
{
/* Clear the prompt */
Utilities.prt("", 0, 0);
return(false);
}
/* XXX Ideally show and move the cursor here to indicate
* the currently "Pending" direction. XXX */
this_dir = Utilities.target_dir(ke.key);
if (this_dir != 0)
{
dir = dir_transitions[dir][this_dir];
}
if (Misc.lazymove_delay == 0 || ++keypresses_handled > 1)
{
break;
}
Utilities.inkey_scan = Misc.lazymove_delay;
ke = Utilities.inkey_ex();
}
/* 5 is equivalent to "escape" */
if (dir == 5)
{
/* Clear the prompt */
Utilities.prt("", 0, 0);
return(false);
}
}
/* Oops */
if (dir == 0)
{
Utilities.bell("Illegal repeatable direction!");
}
}
/* Clear the prompt */
Utilities.prt("", 0, 0);
/* Save direction */
dp = dir;
/* Success */
return(true);
}
