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/*
* Generate a game of life level and make it evolve
*/
/*
* Copyright (c) 2003 DarkGod.
*
* This software may be copied and distributed for educational, research, and
* not for profit purposes provided that this copyright and statement are
* included in all such copies.
*/
#include "angband.h"
/*
* Generate a game of life level :) and make it evolve
*/
void evolve_level(bool_ noise)
{
int i, j;
int cw = 0, cf = 0;
/* Add a bit of noise */
if (noise)
{
for (i = 1; i < cur_wid - 1; i++)
{
for (j = 1; j < cur_hgt - 1; j++)
{
if (f_info[cave[j][i].feat].flags1 & FF1_WALL) cw++;
if (f_info[cave[j][i].feat].flags1 & FF1_FLOOR) cf++;
}
}
for (i = 1; i < cur_wid - 1; i++)
{
for (j = 1; j < cur_hgt - 1; j++)
{
cave_type *c_ptr;
/* Access the grid */
c_ptr = &cave[j][i];
/* Permanent features should stay */
if (f_info[c_ptr->feat].flags1 & FF1_PERMANENT) continue;
/* Avoid evolving grids with object or monster */
if (c_ptr->o_idx || c_ptr->m_idx) continue;
/* Avoid evolving player grid */
if ((j == p_ptr->py) && (i == p_ptr->px)) continue;
if (magik(7))
{
if (cw > cf)
{
place_floor(j, i);
}
else
{
place_filler(j, i);
}
}
}
}
}
for (i = 1; i < cur_wid - 1; i++)
{
for (j = 1; j < cur_hgt - 1; j++)
{
int x, y, c;
cave_type *c_ptr;
/* Access the grid */
c_ptr = &cave[j][i];
/* Permanent features should stay */
if (f_info[c_ptr->feat].flags1 & FF1_PERMANENT) continue;
/* Avoid evolving grids with object or monster */
if (c_ptr->o_idx || c_ptr->m_idx) continue;
/* Avoid evolving player grid */
if ((j == p_ptr->py) && (i == p_ptr->px)) continue;
/* Reset tally */
c = 0;
/* Count number of surrounding walls */
for (x = i - 1; x <= i + 1; x++)
{
for (y = j - 1; y <= j + 1; y++)
{
if ((x == i) && (y == j)) continue;
if (f_info[cave[y][x].feat].flags1 & FF1_WALL) c++;
}
}
/*
* Changed these parameters a bit, so that it doesn't produce
* too open or too narrow levels -- pelpel
*/
/* Starved or suffocated */
if ((c < 4) || (c >= 7))
{
if (f_info[c_ptr->feat].flags1 & FF1_WALL)
{
place_floor(j, i);
}
}
/* Spawned */
else if ((c == 4) || (c == 5))
{
if (!(f_info[c_ptr->feat].flags1 & FF1_WALL))
{
place_filler(j, i);
}
}
}
}
/* Notice changes */
p_ptr->update |= (PU_VIEW | PU_MONSTERS | PU_FLOW | PU_MON_LITE);
}
bool_ level_generate_life()
{
int i, j;
for (i = 1; i < cur_wid - 1; i++)
{
for (j = 1; j < cur_hgt - 1; j++)
{
cave[j][i].info = (CAVE_ROOM | CAVE_GLOW | CAVE_MARK);
if (magik(45)) place_floor(j, i);
else place_filler(j, i);
}
}
evolve_level(FALSE);
evolve_level(FALSE);
evolve_level(FALSE);
/* Determine the character location */
if (!new_player_spot(get_branch()))
return FALSE;
return TRUE;
}
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