void game::compare()
{
tripoint dir;
int &dirx = dir.x;
int &diry = dir.y;
if( choose_direction(_("Compare where?"), dirx, diry ) ) {
compare( tripoint( dirx, diry, 0 ) );
}
}
void construct::done_tree( const tripoint &p )
{
tripoint dirp;
while( !choose_direction( _( "Press a direction for the tree to fall in:" ), dirp ) ) {
// try again
}
tripoint to = p + point( 3 * dirp.x + rng( -1, 1 ), 3 * dirp.y + rng( -1, 1 ) );
std::vector<tripoint> tree = line_to( p, to, rng( 1, 8 ) );
for( auto &elem : tree ) {
g->m.destroy( elem );
g->m.ter_set( elem, t_trunk );
}
}
/**
* Choose "logical" directions for monster movement
*/
static bool get_moves(struct chunk *c, struct monster *mon, int *dir)
{
int py = player->py;
int px = player->px;
int y, x;
/* Monsters will run up to z_info->flee_range grids out of sight */
int flee_range = z_info->max_sight + z_info->flee_range;
bool done = false;
/* Calculate range */
find_range(mon);
/* Flow towards the player */
if (get_moves_flow(c, mon)) {
/* Extract the "pseudo-direction" */
y = mon->ty - mon->fy;
x = mon->tx - mon->fx;
} else {
/* Head straight for the player */
y = player->py - mon->fy;
x = player->px - mon->fx;
}
/* Normal animal packs try to get the player out of corridors. */
if (rf_has(mon->race->flags, RF_GROUP_AI) &&
!flags_test(mon->race->flags, RF_SIZE, RF_PASS_WALL, RF_KILL_WALL,
FLAG_END)) {
int i, open = 0;
/* Count empty grids next to player */
for (i = 0; i < 8; i++) {
int ry = py + ddy_ddd[i];
int rx = px + ddx_ddd[i];
/* Check grid around the player for room interior (room walls count)
* or other empty space */
if (square_ispassable(c, ry, rx) || square_isroom(c, ry, rx)) {
/* One more open grid */
open++;
}
}
/* Not in an empty space and strong player */
if ((open < 7) && (player->chp > player->mhp / 2)) {
/* Find hiding place */
if (find_hiding(c, mon)) {
done = true;
y = mon->ty - mon->fy;
x = mon->tx - mon->fx;
}
}
}
/* Apply fear */
if (!done && (mon->min_range == flee_range)) {
/* Try to find safe place */
if (!find_safety(c, mon)) {
/* Just leg it away from the player */
y = (-y);
x = (-x);
} else {
/* Set a course for the safe place */
get_moves_fear(c, mon);
y = mon->ty - mon->fy;
x = mon->tx - mon->fx;
}
done = true;
}
/* Monster groups try to surround the player */
if (!done && rf_has(mon->race->flags, RF_GROUP_AI)) {
int i, yy = mon->ty, xx = mon->tx;
/* If we are not already adjacent */
if (mon->cdis > 1) {
/* Find an empty square near the player to fill */
int tmp = randint0(8);
for (i = 0; i < 8; i++) {
/* Pick squares near player (pseudo-randomly) */
yy = py + ddy_ddd[(tmp + i) & 7];
xx = px + ddx_ddd[(tmp + i) & 7];
/* Ignore filled grids */
if (!square_isempty(cave, yy, xx)) continue;
/* Try to fill this hole */
break;
}
}
/* Extract the new "pseudo-direction" */
y = yy - mon->fy;
x = xx - mon->fx;
}
/* Check for no move */
if (!x && !y) return (false);
/* Pick the correct direction */
*dir = choose_direction(y, x);
/* Want to move */
return (true);
}
