/* Destroy Traps (and Locks) */
static void project_feature_handler_KILL_TRAP(project_feature_handler_context_t *context)
{
const int x = context->x;
const int y = context->y;
/* Reveal secret doors */
if (square_issecretdoor(cave, y, x)) {
place_closed_door(cave, y, x);
/* Check line of sight */
if (square_isseen(cave, y, x))
context->obvious = true;
}
/* Destroy traps, unlock doors */
if (square_istrap(cave, y, x)) {
/* Check line of sight */
if (square_isview(cave, y, x)) {
msg("There is a bright flash of light!");
context->obvious = true;
}
/* Destroy the trap */
square_destroy_trap(cave, y, x);
} else if (square_islockeddoor(cave, y, x)) {
/* Unlock the door */
square_unlock_door(cave, y, x);
/* Check line of sound */
if (square_isview(cave, y, x)) {
msg("Click!");
context->obvious = true;
}
}
}
/**
* Perform the basic "tunnel" command
*
* Assumes that no monster is blocking the destination.
* Uses twall() (above) to do all "terrain feature changing".
* Returns true if repeated commands may continue.
*/
static bool do_cmd_tunnel_aux(int y, int x)
{
bool more = false;
int digging_chances[DIGGING_MAX];
bool okay = false;
bool gold = square_hasgoldvein(cave, y, x);
bool rubble = square_isrubble(cave, y, x);
/* Verify legality */
if (!do_cmd_tunnel_test(y, x)) return (false);
calc_digging_chances(&player->state, digging_chances);
/* Do we succeed? */
okay = (digging_chances[square_digging(cave, y, x) - 1] > randint0(1600));
/* Success */
if (okay && twall(y, x)) {
/* Rubble is a special case - could be handled more generally NRM */
if (rubble) {
/* Message */
msg("You have removed the rubble.");
/* Place an object (except in town) */
if ((randint0(100) < 10) && player->depth) {
/* Create a simple object */
place_object(cave, y, x, player->depth, false, false,
ORIGIN_RUBBLE, 0);
/* Observe the new object */
if (!ignore_item_ok(square_object(cave, y, x)) &&
square_isseen(cave, y, x))
msg("You have found something!");
}
} else if (gold) {
/* Found treasure */
place_gold(cave, y, x, player->depth, ORIGIN_FLOOR);
msg("You have found something!");
} else {
msg("You have finished the tunnel.");
}
} else {
/* Failure, continue digging */
if (rubble)
msg("You dig in the rubble.");
else
msg("You tunnel into the %s.",
square_apparent_name(cave, player, y, x));
more = true;
if (square_issecretdoor(cave, y, x))
/* Occasional Search XXX XXX */
if (randint0(100) < 25) search(false);
}
/* Result */
return (more);
}
/**
* Search for traps or secret doors
*/
static void search(void)
{
int py = player->py;
int px = player->px;
int y, x;
struct object *obj;
/* Various conditions mean no searching */
if (player->timed[TMD_BLIND] || no_light() ||
player->timed[TMD_CONFUSED] || player->timed[TMD_IMAGE])
return;
/* Search the nearby grids, which are always in bounds */
for (y = (py - 1); y <= (py + 1); y++) {
for (x = (px - 1); x <= (px + 1); x++) {
/* Traps */
if (square_issecrettrap(cave, y, x)) {
if (square_reveal_trap(cave, y, x, true))
disturb(player, 0);
}
/* Secret doors */
if (square_issecretdoor(cave, y, x)) {
msg("You have found a secret door.");
place_closed_door(cave, y, x);
disturb(player, 0);
}
/* Traps on chests */
for (obj = square_object(cave, y, x); obj; obj = obj->next) {
if (!obj->known || !is_trapped_chest(obj))
continue;
if (obj->known->pval != obj->pval) {
msg("You have discovered a trap on the chest!");
obj->known->pval = obj->pval;
disturb(player, 0);
}
}
}
}
}
/**
* True if the square can be dug: this includes rubble and non-permanent walls.
*/
bool square_isdiggable(struct chunk *c, int y, int x) {
return (square_ismineral(c, y, x) ||
square_issecretdoor(c, y, x) ||
square_isrubble(c, y, x));
}
/**
* Work out if a monster can move through the grid, if necessary bashing
* down doors in the way.
*
* Returns true if the monster is able to move through the grid.
*/
static bool process_monster_can_move(struct chunk *c, struct monster *mon,
const char *m_name, int nx, int ny, bool *did_something)
{
struct monster_lore *lore = get_lore(mon->race);
/* Only fiery creatures can handle lava */
if (square_isfiery(c, ny, nx) && !rf_has(mon->race->flags, RF_IM_FIRE))
return false;
/* Floor is open? */
if (square_ispassable(c, ny, nx))
return true;
/* Permanent wall in the way */
if (square_iswall(c, ny, nx) && square_isperm(c, ny, nx))
return false;
/* Normal wall, door, or secret door in the way */
/* There's some kind of feature in the way, so learn about
* kill-wall and pass-wall now */
if (mflag_has(mon->mflag, MFLAG_VISIBLE)) {
rf_on(lore->flags, RF_PASS_WALL);
rf_on(lore->flags, RF_KILL_WALL);
}
/* Monster may be able to deal with walls and doors */
if (rf_has(mon->race->flags, RF_PASS_WALL)) {
return true;
} else if (rf_has(mon->race->flags, RF_KILL_WALL)) {
/* Remove the wall */
square_destroy_wall(c, ny, nx);
/* Note changes to viewable region */
if (square_isview(c, ny, nx))
player->upkeep->update |= (PU_UPDATE_VIEW | PU_MONSTERS);
/* Fully update the flow since terrain changed */
player->upkeep->update |= (PU_FORGET_FLOW | PU_UPDATE_FLOW);
return true;
} else if (square_iscloseddoor(c, ny, nx) ||
square_issecretdoor(c, ny, nx)) {
bool may_bash = rf_has(mon->race->flags, RF_BASH_DOOR) && one_in_(2);
/* Take a turn */
*did_something = true;
/* Learn about door abilities */
if (mflag_has(mon->mflag, MFLAG_VISIBLE)) {
rf_on(lore->flags, RF_OPEN_DOOR);
rf_on(lore->flags, RF_BASH_DOOR);
}
/* Creature can open or bash doors */
if (!rf_has(mon->race->flags, RF_OPEN_DOOR) &&
!rf_has(mon->race->flags, RF_BASH_DOOR))
return false;
/* Stuck door -- try to unlock it */
if (square_islockeddoor(c, ny, nx)) {
int k = square_door_power(c, ny, nx);
if (randint0(mon->hp / 10) > k) {
if (may_bash)
msg("%s slams against the door.", m_name);
else
msg("%s fiddles with the lock.", m_name);
/* Reduce the power of the door by one */
square_set_door_lock(c, ny, nx, k - 1);
}
} else {
/* Handle viewable doors */
if (square_isview(c, ny, nx))
player->upkeep->update |= (PU_UPDATE_VIEW | PU_MONSTERS);
/* Closed or secret door -- open or bash if allowed */
if (may_bash) {
square_smash_door(c, ny, nx);
msg("You hear a door burst open!");
disturb(player, 0);
/* Fall into doorway */
return true;
} else if (rf_has(mon->race->flags, RF_OPEN_DOOR)) {
square_open_door(c, ny, nx);
}
}
}
return false;
}
/**
* Work out if a monster can move through the grid, if necessary bashing
* down doors in the way.
*
* Returns TRUE if the monster is able to move through the grid.
*/
static bool process_monster_can_move(struct chunk *c, struct monster *m_ptr,
const char *m_name, int nx, int ny, bool *did_something)
{
monster_lore *l_ptr = get_lore(m_ptr->race);
/* Floor is open? */
if (square_ispassable(c, ny, nx))
return TRUE;
/* Permanent wall in the way */
if (square_iswall(c, ny, nx) && square_isperm(c, ny, nx))
return FALSE;
/* Normal wall, door, or secret door in the way */
/* There's some kind of feature in the way, so learn about
* kill-wall and pass-wall now */
if (mflag_has(m_ptr->mflag, MFLAG_VISIBLE)) {
rf_on(l_ptr->flags, RF_PASS_WALL);
rf_on(l_ptr->flags, RF_KILL_WALL);
}
/* Monster moves through walls (and doors) */
if (rf_has(m_ptr->race->flags, RF_PASS_WALL))
return TRUE;
/* Monster destroys walls (and doors) */
else if (rf_has(m_ptr->race->flags, RF_KILL_WALL)) {
/* Forget the wall */
sqinfo_off(c->squares[ny][nx].info, SQUARE_MARK);
/* Notice */
square_destroy_wall(c, ny, nx);
/* Note changes to viewable region */
if (player_has_los_bold(ny, nx))
player->upkeep->update |= PU_UPDATE_VIEW;
/* Update the flow, since walls affect flow */
player->upkeep->update |= PU_UPDATE_FLOW;
return TRUE;
}
/* Handle doors and secret doors */
else if (square_iscloseddoor(c, ny, nx) || square_issecretdoor(c, ny, nx)) {
bool may_bash = rf_has(m_ptr->race->flags, RF_BASH_DOOR) && one_in_(2);
/* Take a turn */
*did_something = TRUE;
/* Learn about door abilities */
if (mflag_has(m_ptr->mflag, MFLAG_VISIBLE)) {
rf_on(l_ptr->flags, RF_OPEN_DOOR);
rf_on(l_ptr->flags, RF_BASH_DOOR);
}
/* Creature can open or bash doors */
if (!rf_has(m_ptr->race->flags, RF_OPEN_DOOR) && !rf_has(m_ptr->race->flags, RF_BASH_DOOR))
return FALSE;
/* Stuck door -- try to unlock it */
if (square_islockeddoor(c, ny, nx)) {
int k = square_door_power(c, ny, nx);
if (randint0(m_ptr->hp / 10) > k) {
if (may_bash)
msg("%s slams against the door.", m_name);
else
msg("%s fiddles with the lock.", m_name);
/* Reduce the power of the door by one */
square_set_door_lock(c, ny, nx, k - 1);
}
} else {
/* Handle viewable doors */
if (player_has_los_bold(ny, nx))
player->upkeep->update |= PU_UPDATE_VIEW;
/* Closed or secret door -- open or bash if allowed */
if (may_bash) {
square_smash_door(c, ny, nx);
msg("You hear a door burst open!");
disturb(player, 0);
/* Fall into doorway */
return TRUE;
} else if (rf_has(m_ptr->race->flags, RF_OPEN_DOOR)) {
square_open_door(c, ny, nx);
}
}
}
return FALSE;
}
/**
* Search for hidden things. Returns true if a search was attempted, returns
* false when the player has a 0% chance of finding anything. Prints messages
* for negative confirmation when verbose mode is requested.
*/
bool search(bool verbose)
{
int py = player->py;
int px = player->px;
int y, x, chance;
bool found = false;
struct object *obj;
/* Start with base search ability */
chance = player->state.skills[SKILL_SEARCH];
/* Penalize various conditions */
if (player->timed[TMD_BLIND] || no_light())
chance = chance / 10;
if (player->timed[TMD_CONFUSED] || player->timed[TMD_IMAGE])
chance = chance / 10;
/* Prevent fruitless searches */
if (chance <= 0) {
if (verbose) {
msg("You can't make out your surroundings well enough to search.");
/* Cancel repeat */
disturb(player, 0);
}
return false;
}
/* Search the nearby grids, which are always in bounds */
for (y = (py - 1); y <= (py + 1); y++) {
for (x = (px - 1); x <= (px + 1); x++) {
/* Sometimes, notice things */
if (randint0(100) < chance) {
if (square_issecrettrap(cave, y, x)) {
found = true;
/* Reveal trap, display a message */
if (square_reveal_trap(cave, y, x, chance, true))
/* Disturb */
disturb(player, 0);
}
/* Secret door */
if (square_issecretdoor(cave, y, x)) {
found = true;
/* Message */
msg("You have found a secret door.");
/* Pick a door */
place_closed_door(cave, y, x);
/* Disturb */
disturb(player, 0);
}
/* Scan all objects in the grid */
for (obj = square_object(cave, y, x); obj; obj = obj->next) {
/* Skip if not a trapped chest */
if (!is_trapped_chest(obj)) continue;
/* Identify once */
if (!object_is_known(obj)) {
found = true;
/* Message */
msg("You have discovered a trap on the chest!");
/* Know the trap */
object_notice_everything(obj);
/* Notice it */
disturb(player, 0);
}
}
}
}
}
if (verbose && !found) {
if (chance >= 100)
msg("There are no secrets here.");
else
msg("You found nothing.");
}
return true;
}
/**
* Work out if a monster can move through the grid, if necessary bashing
* down doors in the way.
*
* Returns true if the monster is able to move through the grid.
*/
static bool monster_turn_can_move(struct chunk *c, struct monster *mon,
const char *m_name, int nx, int ny, bool *did_something)
{
struct monster_lore *lore = get_lore(mon->race);
/* Dangerous terrain in the way */
if (monster_hates_grid(c, mon, ny, nx)) {
return false;
}
/* Floor is open? */
if (square_ispassable(c, ny, nx)) {
return true;
}
/* Permanent wall in the way */
if (square_iswall(c, ny, nx) && square_isperm(c, ny, nx)) {
return false;
}
/* Normal wall, door, or secret door in the way */
/* There's some kind of feature in the way, so learn about
* kill-wall and pass-wall now */
if (monster_is_visible(mon)) {
rf_on(lore->flags, RF_PASS_WALL);
rf_on(lore->flags, RF_KILL_WALL);
}
/* Monster may be able to deal with walls and doors */
if (rf_has(mon->race->flags, RF_PASS_WALL)) {
return true;
} else if (rf_has(mon->race->flags, RF_KILL_WALL)) {
/* Remove the wall */
square_destroy_wall(c, ny, nx);
/* Note changes to viewable region */
if (square_isview(c, ny, nx))
player->upkeep->update |= (PU_UPDATE_VIEW | PU_MONSTERS);
return true;
} else if (square_iscloseddoor(c, ny, nx) ||
square_issecretdoor(c, ny, nx)) {
bool can_open = rf_has(mon->race->flags, RF_OPEN_DOOR);
bool can_bash = rf_has(mon->race->flags, RF_BASH_DOOR);
bool will_bash = false;
/* Take a turn */
*did_something = true;
/* Learn about door abilities */
if (monster_is_visible(mon)) {
rf_on(lore->flags, RF_OPEN_DOOR);
rf_on(lore->flags, RF_BASH_DOOR);
}
/* If creature can open or bash doors, make a choice */
if (can_open) {
/* Sometimes bash anyway (impatient) */
if (can_bash) {
will_bash = one_in_(2) ? true : false;
}
} else if (can_bash) {
/* Only choice */
will_bash = true;
} else {
/* Door is an insurmountable obstacle */
return false;
}
/* Now outcome depends on type of door */
if (square_islockeddoor(c, ny, nx)) {
/* Locked door -- test monster strength against door strength */
int k = square_door_power(c, ny, nx);
if (randint0(mon->hp / 10) > k) {
if (will_bash) {
msg("%s slams against the door.", m_name);
} else {
msg("%s fiddles with the lock.", m_name);
}
/* Reduce the power of the door by one */
square_set_door_lock(c, ny, nx, k - 1);
}
} else {
/* Closed or secret door -- always open or bash */
if (square_isview(c, ny, nx))
player->upkeep->update |= (PU_UPDATE_VIEW | PU_MONSTERS);
if (will_bash) {
square_smash_door(c, ny, nx);
msg("You hear a door burst open!");
disturb(player, 0);
/* Fall into doorway */
return true;
} else {
square_open_door(c, ny, nx);
}
}
}
return false;
}
