/**
* Extract a direction (or zero) from a character
*/
int target_dir(struct keypress ch)
{
return target_dir_allow(ch, FALSE);
}
/**
* 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.
*/
bool textui_get_rep_dir(int *dp, bool allow_5)
{
int dir = 0;
ui_event ke;
/* Initialize */
(*dp) = 0;
/* Get a direction */
while (!dir) {
/* Paranoia*/
event_signal(EVENT_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. */
inkey_scan = SCAN_INSTANT;
ke = inkey_ex();
inkey_scan = SCAN_OFF;
if (ke.type == EVT_NONE ||
(ke.type == EVT_KBRD && target_dir(ke.key) == 0)) {
prt("Direction or <click> (Escape to cancel)? ", 0, 0);
ke = inkey_ex();
}
/* Check mouse coordinates, or get keypresses until a dir is chosen */
if (ke.type == EVT_MOUSE) {
if (ke.mouse.button == 1) {
int y = KEY_GRID_Y(ke);
int x = KEY_GRID_X(ke);
struct loc from = loc(player->px, player->py);
struct loc to = loc(x, y);
dir = pathfind_direction_to(from, to);
} else if (ke.mouse.button == 2) {
/* Clear the prompt */
prt("", 0, 0);
return (false);
}
} else if (ke.type == EVT_KBRD) {
int keypresses_handled = 0;
while (ke.type == EVT_KBRD && ke.key.code != 0) {
int this_dir;
if (ke.key.code == ESCAPE) {
/* Clear the prompt */
prt("", 0, 0);
return (false);
}
/* XXX Ideally show and move the cursor here to indicate
the currently "Pending" direction. XXX */
this_dir = target_dir_allow(ke.key, allow_5);
if (this_dir)
dir = dir_transitions[dir][this_dir];
if (op_ptr->lazymove_delay == 0 || ++keypresses_handled > 1)
break;
inkey_scan = op_ptr->lazymove_delay;
ke = inkey_ex();
}
/* 5 is equivalent to "escape" */
if (dir == 5 && !allow_5) {
/* Clear the prompt */
prt("", 0, 0);
return (false);
}
}
/* Oops */
if (!dir) bell("Illegal repeatable direction!");
}
/* Clear the prompt */
prt("", 0, 0);
/* Save direction */
(*dp) = dir;
/* Success */
return (true);
}
