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/*
* File: behold.cc
* Summary: player methods dealing with mesmerisation.
*/
#include "AppHdr.h"
#include "player.h"
#include "coord.h"
#include "debug.h"
#include "env.h"
#include "fprop.h"
#include "mon-util.h"
#include "monster.h"
#include "random.h"
#include "state.h"
#include "stuff.h"
#include "areas.h"
// Add a monster to the list of beholders.
void player::add_beholder(const monsters* mon)
{
if (is_sanctuary(you.pos()))
{
if (you.can_see(mon))
{
mprf("%s's singing sounds muted, and has no effect on you.",
mon->name(DESC_CAP_THE).c_str());
}
else
{
mpr("The melody is strangely muted, and has no effect on you.");
}
return;
}
if (!duration[DUR_MESMERISED])
{
you.set_duration(DUR_MESMERISED, 7, 12);
beholders.push_back(mon->mindex());
mprf(MSGCH_WARN, "You are mesmerised by %s!",
mon->name(DESC_NOCAP_THE).c_str());
}
else
{
you.increase_duration(DUR_MESMERISED, 5, 12);
if (!beheld_by(mon))
beholders.push_back(mon->mindex());
}
}
// Whether player is mesmerised.
bool player::beheld() const
{
ASSERT(duration[DUR_MESMERISED] > 0 == !beholders.empty());
return (duration[DUR_MESMERISED] > 0);
}
// Whether player is mesmerised by the given monster.
bool player::beheld_by(const monsters* mon) const
{
for (unsigned int i = 0; i < beholders.size(); i++)
if (beholders[i] == mon->mindex())
return (true);
return (false);
}
// Checks whether a beholder keeps you from moving to
// target, and returns one if it exists.
monsters* player::get_beholder(const coord_def &target) const
{
for (unsigned int i = 0; i < beholders.size(); i++)
{
monsters *mon = &menv[beholders[i]];
const int olddist = grid_distance(pos(), mon->pos());
const int newdist = grid_distance(target, mon->pos());
if (olddist < newdist)
return (mon);
}
return (NULL);
}
monsters* player::get_any_beholder() const
{
if (beholders.size() > 0)
return (&menv[beholders[0]]);
else
return (NULL);
}
// Removes a monster from the list of beholders if present.
void player::remove_beholder(const monsters *mon)
{
for (unsigned int i = 0; i < beholders.size(); i++)
if (beholders[i] == mon->mindex())
{
beholders.erase(beholders.begin() + i);
_removed_beholder();
return;
}
}
// Clear the list of beholders. Doesn't message.
void player::clear_beholders()
{
beholders.clear();
duration[DUR_MESMERISED] = 0;
}
// Possibly end mesmerisation if a loud noise happened.
void player::beholders_check_noise(int loudness)
{
if (loudness >= 20 && beheld())
{
mprf("For a moment, you cannot hear the mermaid%s!",
beholders.size() > 1 ? "s" : "");
clear_beholders();
_removed_beholder();
}
}
static void _removed_beholder_msg(const monsters* mon)
{
if (!mon->alive() || mons_genus(mon->type) != MONS_MERMAID
|| mon->submerged() || !you.see_cell(mon->pos()))
{
return;
}
if (is_sanctuary(you.pos()) && !mons_is_fleeing(mon))
{
if (you.can_see(mon))
{
mprf("%s's singing becomes strangely muted.",
mon->name(DESC_CAP_THE).c_str());
}
else
mpr("Something's singing becomes strangely muted.");
return;
}
if (you.can_see(mon))
{
if (silenced(you.pos()) || silenced(mon->pos()))
{
mprf("You can no longer hear %s's singing!",
mon->name(DESC_NOCAP_THE).c_str());
return;
}
mprf("%s stops singing.", mon->name(DESC_CAP_THE).c_str());
return;
}
mpr("Something stops singing.");
}
// Update all beholders' status after changes.
void player::update_beholders()
{
if (!beheld())
return;
bool removed = false;
for (int i = beholders.size() - 1; i >= 0; i--)
{
const monsters* mon = &menv[beholders[i]];
if (!_possible_beholder(mon))
{
beholders.erase(beholders.begin() + i);
removed = true;
_removed_beholder_msg(mon);
}
}
if (removed)
_removed_beholder();
}
// Update a single beholder.
void player::update_beholder(const monsters *mon)
{
if (_possible_beholder(mon))
return;
for (unsigned int i = 0; i < beholders.size(); i++)
if (beholders[i] == mon->mindex())
{
beholders.erase(beholders.begin() + i);
_removed_beholder_msg(mon);
_removed_beholder();
return;
}
}
// Helper function that resets the duration and messages if the player
// is no longer mesmerised.
void player::_removed_beholder()
{
if (beholders.empty())
{
duration[DUR_MESMERISED] = 0;
mpr(coinflip() ? "You break out of your daze!"
: "You are no longer entranced.",
MSGCH_DURATION);
}
}
// Helper function that checks whether the given monster is a possible
// beholder.
bool player::_possible_beholder(const monsters *mon) const
{
if (crawl_state.arena)
return (false);
return (!silenced(pos()) && !silenced(mon->pos())
&& see_cell(mon->pos()) && mon->see_cell(pos())
&& mon->alive() && mons_genus(mon->type) == MONS_MERMAID
&& !mon->submerged() && !mon->confused()
&& !mon->asleep() && !mon->cannot_move()
&& !mon->wont_attack() && !mon->pacified()
&& !mon->berserk() && !mons_is_fleeing(mon)
&& !is_sanctuary(you.pos()));
}
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