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1.1 |
/* |
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* This file is part of Deliantra, the Roguelike Realtime MMORPG. |
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* |
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* Copyright (©) 2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
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1.5 |
* Copyright (©) Crossfire Development Team (restored, original file without copyright notice) |
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1.1 |
* |
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* Deliantra is free software: you can redistribute it and/or modify it under |
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* the terms of the Affero GNU General Public License as published by the |
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* Free Software Foundation, either version 3 of the License, or (at your |
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* option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the Affero GNU General Public License |
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* and the GNU General Public License along with this program. If not, see |
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* <http://www.gnu.org/licenses/>. |
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* |
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* The authors can be reached via e-mail to <support@deliantra.net> |
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*/ |
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#include <global.h> |
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#include <random_map.h> |
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1.5 |
#include <rproto.h> |
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1.1 |
|
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1.9 |
void |
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layout::alloc (int w, int h) |
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1.1 |
{ |
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1.8 |
assert (sizeof (cell) == 1); |
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1.1 |
|
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1.9 |
this->w = w; |
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this->h = h; |
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1.8 |
// we store the layout in a single contiguous memory layout |
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// first part consists of pointers to each column, followed |
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// by the actual columns (not rows!) |
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1.14 |
size = (sizeof (cell *) + sizeof (cell) * h) * w; |
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1.8 |
data = (cell **)salloc<char> (size); |
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cell *p = (cell *)(data + w); |
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1.1 |
|
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1.14 |
for (int x = 0; x < w; ++x) |
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1.8 |
data [x] = p + x * h; |
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1.1 |
} |
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1.9 |
layout::layout (int w, int h) |
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{ |
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alloc (w, h); |
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} |
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layout::layout (layout ©) |
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{ |
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alloc (copy.w, copy.h); |
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memcpy (data [0], copy.data [0], sizeof (cell) * h * w); |
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} |
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1.14 |
layout::layout (layout &orig, int x1, int y1, int x2, int y2) |
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{ |
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w = x2 - x1; |
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h = y2 - y1; |
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// we only allocate space for the pointers |
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size = sizeof (cell *) * w; |
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data = (cell **)salloc<char> (size); |
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// and now we point back into the original layout |
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for (int x = 0; x < w; ++x) |
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data [x] = orig.data [x + x1] + y1; |
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} |
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1.7 |
layout::~layout () |
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1.1 |
{ |
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1.8 |
sfree ((char *)data, size); |
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1.1 |
} |
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void |
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1.7 |
layout::fill (char fill) |
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1.1 |
{ |
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1.15 |
//memset (data [0], fill, w * h); // only when contiguous :/ |
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fill_rect (0, 0, w, h, fill); |
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1.1 |
} |
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void |
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1.7 |
layout::rect (int x1, int y1, int x2, int y2, char fill) |
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1.1 |
{ |
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1.10 |
--x2; |
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memset (data [x1] + y1, fill, y2 - y1); |
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memset (data [x2] + y1, fill, y2 - y1); |
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while (++x1 < x2) |
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data [x1][y1] = data [x1][y2 - 1] = fill; |
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} |
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void |
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layout::fill_rect (int x1, int y1, int x2, int y2, char fill) |
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{ |
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1.1 |
for (; x1 < x2; ++x1) |
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1.8 |
memset (data [x1] + y1, fill, y2 - y1); |
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1.1 |
} |
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1.7 |
void layout::border (char fill) |
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1.1 |
{ |
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1.10 |
rect (0, 0, w, h, fill); |
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1.1 |
} |
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1.2 |
void |
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1.7 |
layout::fill_rand (int percent) |
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1.2 |
{ |
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percent = lerp (percent, 0, 100, 0, 256); |
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for (int x = w - 1; --x > 0; ) |
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for (int y = h - 1; --y > 0; ) |
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1.8 |
data [x][y] = rmg_rndm (256) > percent ? 0 : '#'; |
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1.2 |
} |
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1.1 |
///////////////////////////////////////////////////////////////////////////// |
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1.2 |
// erode by cellular automata |
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1.1 |
void |
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1.7 |
layout::erode_1_2 (int c1, int c2, int repeat) |
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1.1 |
{ |
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1.7 |
layout neu (w, h); |
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1.2 |
|
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while (repeat--) |
129 |
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1.1 |
{ |
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1.2 |
for (int x = 0; x < w; ++x) |
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1.1 |
{ |
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1.2 |
coroapi::cede_to_tick (); |
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for (int y = 0; y < h; ++y) |
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{ |
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int n1 = 0, n2 = 0; |
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// a 5x5 area, dx, dy, distance (1 == <= 1, 0 <= 2) |
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static I8 dds[][3] = { |
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1.4 |
{ -2, -1, 0 }, { -2, 0, 0 }, { -2, 1, 0 }, |
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{ -1, -2, 0 }, { -1, -1, 1 }, { -1, 0, 1 }, { -1, 1, 1 }, { -1, 2, 0 }, |
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{ 0, -2, 0 }, { 0, -1, 1 }, { 0, 0, 1 }, { 0, 1, 1 }, { 0, 2, 0 }, |
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{ 1, -2, 0 }, { 1, -1, 1 }, { 1, 0, 1 }, { 1, 1, 1 }, { 1, 2, 0 }, |
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{ 2, -1, 0 }, { 2, 0, 0 }, { 2, 1, 0 }, |
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1.2 |
}; |
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for (int i = array_length (dds); i--; ) |
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{ |
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int nx = x + dds [i][0]; |
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int ny = y + dds [i][1]; |
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1.8 |
if (!IN_RANGE_EXC (nx, 0, w) || !IN_RANGE_EXC (ny, 0, h) || !data [nx][ny]) |
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1.2 |
{ |
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n1 += dds [i][2]; |
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n2++; |
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} |
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} |
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neu [x][y] = n1 >= c1 || n2 <= c2 ? '#' : 0; |
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} |
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} |
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swap (neu); |
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} |
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} |
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///////////////////////////////////////////////////////////////////////////// |
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void |
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1.7 |
layout::print () const |
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1.2 |
{ |
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for (int y = 0; y < h; y++) |
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{ |
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for (int x = 0; x < w; x++) |
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{ |
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1.8 |
U8 c = (U8)data [x][y]; |
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1.1 |
|
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if (!c) |
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c = ' '; |
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else if (c < 10) |
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c += '0'; |
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else if (c < 32) |
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c += 'a' - 10; |
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putc ((char)c, stdout); |
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} |
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putc ('\n', stdout); |
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} |
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putc ('\n', stdout); |
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} |
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///////////////////////////////////////////////////////////////////////////// |
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// isolation remover - ensures single connected area |
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typedef fixed_stack<point> pointlist; |
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1.10 |
static void noinline |
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1.7 |
push_flood_fill (layout &dist, pointlist &seeds, int x, int y) |
201 |
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1.1 |
{ |
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root |
1.3 |
if (dist [x][y]) |
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1.1 |
return; |
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1.3 |
while (y > 0 && !dist [x][y - 1]) |
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1.1 |
--y; |
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int y0 = y; |
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1.3 |
while (y < dist.h && !dist [x][y]) |
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1.1 |
{ |
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seeds.push (point (x, y)); |
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dist [x][y] = 1; |
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++y; |
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} |
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while (--y >= y0) |
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{ |
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root |
1.11 |
if (x > 0 && !dist [x - 1][y]) push_flood_fill (dist, seeds, x - 1, y); |
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if (x < dist.w - 1 && !dist [x + 1][y]) push_flood_fill (dist, seeds, x + 1, y); |
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1.1 |
} |
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} |
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static inline void |
226 |
root |
1.17 |
make_tunnel (layout &dist, pointlist &seeds, int x, int y, U8 d, int perturb) |
227 |
root |
1.1 |
{ |
228 |
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for (;;) |
229 |
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{ |
230 |
root |
1.10 |
point neigh[4]; |
231 |
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int ncnt = 0; |
232 |
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233 |
root |
1.17 |
d += perturb > 1; |
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235 |
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if (x > 0 && U8 (dist [x - 1][y]) < d && dist [x - 1][y] > 1) neigh [ncnt++] = point (x - 1, y); |
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if (x < dist.w - 1 && U8 (dist [x + 1][y]) < d && dist [x + 1][y] > 1) neigh [ncnt++] = point (x + 1, y); |
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if (y > 0 && U8 (dist [x][y - 1]) < d && dist [x][y - 1] > 1) neigh [ncnt++] = point (x, y - 1); |
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if (y < dist.h - 1 && U8 (dist [x][y + 1]) < d && dist [x][y + 1] > 1) neigh [ncnt++] = point (x, y + 1); |
239 |
root |
1.12 |
|
240 |
root |
1.10 |
if (!ncnt) |
241 |
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return; |
242 |
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243 |
root |
1.17 |
point &p = neigh [perturb ? rmg_rndm (ncnt) : 0]; |
244 |
root |
1.10 |
|
245 |
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seeds.push (p); |
246 |
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247 |
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x = p.x; |
248 |
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y = p.y; |
249 |
root |
1.1 |
|
250 |
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d = dist [x][y]; |
251 |
root |
1.3 |
dist [x][y] = 1; |
252 |
root |
1.1 |
} |
253 |
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} |
254 |
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255 |
root |
1.3 |
static void inline |
256 |
root |
1.7 |
maybe_push (layout &dist, pointlist &seeds, int x, int y, U8 d) |
257 |
root |
1.1 |
{ |
258 |
root |
1.3 |
char &D = dist [x][y]; |
259 |
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260 |
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if (U8 (D) > d) // if wall and higher distance, lower distance |
261 |
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D = d; |
262 |
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else if (D) // otherwise, if it's no room, this space is uninteresting |
263 |
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return; |
264 |
root |
1.1 |
|
265 |
root |
1.3 |
seeds.push (point (x, y)); |
266 |
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} |
267 |
root |
1.1 |
|
268 |
root |
1.10 |
// isolation remover, works on a "distance" map |
269 |
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// the map must be initialised with 0 == rooms, 255 = walls |
270 |
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static void noinline |
271 |
root |
1.17 |
isolation_remover (layout &dist, unsigned int perturb = 2) |
272 |
root |
1.3 |
{ |
273 |
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// dist contains |
274 |
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// 0 == invisited rooms |
275 |
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// 1 == visited rooms |
276 |
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// 2+ shortest distance to random near room |
277 |
root |
1.1 |
|
278 |
root |
1.17 |
max_it (perturb, 0); |
279 |
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min_it (perturb, 2); |
280 |
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281 |
root |
1.10 |
// phase 1, find seed |
282 |
root |
1.3 |
int cnt = 0; |
283 |
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int x, y; |
284 |
root |
1.1 |
|
285 |
root |
1.10 |
for (int i = 0; i < dist.w; ++i) |
286 |
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for (int j = 0; j < dist.h; ++j) |
287 |
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if (!dist [i][j] && !rmg_rndm (++cnt)) |
288 |
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x = i, y = j; |
289 |
root |
1.2 |
|
290 |
root |
1.3 |
if (!cnt) |
291 |
root |
1.6 |
{ |
292 |
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// map is completely massive, this is not good, |
293 |
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// so make it empty instead. |
294 |
root |
1.12 |
dist.fill (1); |
295 |
root |
1.6 |
return; |
296 |
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} |
297 |
root |
1.1 |
|
298 |
root |
1.10 |
fixed_stack<point> seeds (dist.w * dist.h * 5); |
299 |
root |
1.1 |
|
300 |
root |
1.3 |
// found first free space - picking the first one gives |
301 |
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// us a slight bias for tunnels, but usually you won't |
302 |
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// notice that in-game |
303 |
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seeds.push (point (x, y)); |
304 |
root |
1.1 |
|
305 |
root |
1.3 |
// phase 2, while we have seeds, if |
306 |
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// seed is empty, floodfill, else grow |
307 |
root |
1.1 |
|
308 |
root |
1.3 |
while (seeds.size) |
309 |
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{ |
310 |
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coroapi::cede_to_tick (); |
311 |
root |
1.1 |
|
312 |
root |
1.3 |
point p = seeds.remove (rmg_rndm (seeds.size)); |
313 |
root |
1.1 |
|
314 |
root |
1.3 |
x = p.x; |
315 |
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y = p.y; |
316 |
root |
1.1 |
|
317 |
root |
1.3 |
if (!dist [x][y]) |
318 |
|
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{ |
319 |
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// found new isolated area, make tunnel |
320 |
root |
1.10 |
push_flood_fill (dist, seeds, x, y); |
321 |
root |
1.17 |
make_tunnel (dist, seeds, x, y, 254, perturb); |
322 |
root |
1.1 |
} |
323 |
root |
1.3 |
else |
324 |
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{ |
325 |
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// nothing here, continue to expand |
326 |
|
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U8 d = U8 (dist [x][y]) + 1; |
327 |
root |
1.1 |
|
328 |
root |
1.13 |
if (x < dist.w - 1) maybe_push (dist, seeds, x + 1, y, d); |
329 |
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if (x > 0) maybe_push (dist, seeds, x - 1, y, d); |
330 |
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if (y < dist.h - 1) maybe_push (dist, seeds, x, y + 1, d); |
331 |
|
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if (y > 0) maybe_push (dist, seeds, x, y - 1, d); |
332 |
root |
1.3 |
} |
333 |
|
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} |
334 |
root |
1.10 |
} |
335 |
|
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|
336 |
|
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void |
337 |
root |
1.17 |
layout::isolation_remover (int perturb) |
338 |
root |
1.10 |
{ |
339 |
root |
1.13 |
layout dist (w - 2, h - 2); // map without border |
340 |
root |
1.10 |
|
341 |
root |
1.12 |
for (int x = 1; x < w - 1; ++x) |
342 |
|
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for (int y = 1; y < h - 1; ++y) |
343 |
root |
1.13 |
dist [x - 1][y - 1] = data [x][y] == '#' ? U8 (255) : 0; |
344 |
root |
1.10 |
|
345 |
root |
1.17 |
::isolation_remover (dist, perturb); |
346 |
root |
1.1 |
|
347 |
root |
1.3 |
// now copy the tunnels over |
348 |
root |
1.12 |
for (int x = 1; x < w - 1; ++x) |
349 |
|
|
for (int y = 1; y < h - 1; ++y) |
350 |
root |
1.13 |
if (data [x][y] == '#' && dist [x - 1][y - 1] == 1) |
351 |
root |
1.8 |
data [x][y] = 0; |
352 |
root |
1.2 |
} |
353 |
|
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|
354 |
|
|
///////////////////////////////////////////////////////////////////////////// |
355 |
|
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|
356 |
root |
1.5 |
//+GPL |
357 |
|
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|
358 |
root |
1.7 |
/* puts doors at appropriate locations in a maze. */ |
359 |
root |
1.5 |
void |
360 |
root |
1.7 |
layout::doorify () |
361 |
root |
1.5 |
{ |
362 |
|
|
int ndoors = w * h / 60; /* reasonable number of doors. */ |
363 |
|
|
int doorlocs = 0; /* # of available doorlocations */ |
364 |
|
|
|
365 |
|
|
uint16 *doorlist_x = salloc<uint16> (w * h); |
366 |
|
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uint16 *doorlist_y = salloc<uint16> (w * h); |
367 |
|
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|
368 |
|
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/* make a list of possible door locations */ |
369 |
|
|
for (int i = 1; i < w - 1; i++) |
370 |
|
|
for (int j = 1; j < h - 1; j++) |
371 |
|
|
{ |
372 |
|
|
int sindex = surround_flag (*this, i, j); |
373 |
|
|
|
374 |
|
|
if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
375 |
|
|
{ |
376 |
|
|
doorlist_x [doorlocs] = i; |
377 |
|
|
doorlist_y [doorlocs] = j; |
378 |
|
|
doorlocs++; |
379 |
|
|
} |
380 |
|
|
} |
381 |
|
|
|
382 |
|
|
while (ndoors > 0 && doorlocs > 0) |
383 |
|
|
{ |
384 |
|
|
int di = rmg_rndm (doorlocs); |
385 |
|
|
int i = doorlist_x [di]; |
386 |
|
|
int j = doorlist_y [di]; |
387 |
|
|
int sindex = surround_flag (*this, i, j); |
388 |
|
|
|
389 |
|
|
if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
390 |
|
|
{ |
391 |
root |
1.8 |
data [i][j] = 'D'; |
392 |
root |
1.5 |
ndoors--; |
393 |
|
|
} |
394 |
|
|
|
395 |
|
|
/* reduce the size of the list */ |
396 |
|
|
doorlocs--; |
397 |
|
|
doorlist_x[di] = doorlist_x [doorlocs]; |
398 |
|
|
doorlist_y[di] = doorlist_y [doorlocs]; |
399 |
|
|
} |
400 |
|
|
|
401 |
|
|
sfree (doorlist_x, w * h); |
402 |
|
|
sfree (doorlist_y, w * h); |
403 |
|
|
} |
404 |
|
|
|
405 |
|
|
/* takes a map and makes it symmetric: adjusts Xsize and |
406 |
|
|
* Ysize to produce a symmetric map. |
407 |
|
|
*/ |
408 |
|
|
void |
409 |
root |
1.7 |
layout::symmetrize (int symmetry) |
410 |
root |
1.5 |
{ |
411 |
|
|
if (symmetry == SYMMETRY_NONE) |
412 |
|
|
return; |
413 |
|
|
|
414 |
root |
1.7 |
layout sym_layout ( |
415 |
root |
1.5 |
symmetry == SYMMETRY_X || symmetry == SYMMETRY_XY ? w * 2 - 3 : w, |
416 |
|
|
symmetry == SYMMETRY_Y || symmetry == SYMMETRY_XY ? h * 2 - 3 : h |
417 |
|
|
); |
418 |
|
|
|
419 |
|
|
if (symmetry == SYMMETRY_X) |
420 |
|
|
for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
421 |
|
|
for (int j = 0; j < sym_layout.h; j++) |
422 |
|
|
{ |
423 |
|
|
sym_layout[i ][j] = |
424 |
root |
1.8 |
sym_layout[sym_layout.w - i - 1][j] = data [i][j]; |
425 |
root |
1.5 |
} |
426 |
|
|
|
427 |
|
|
if (symmetry == SYMMETRY_Y) |
428 |
|
|
for (int i = 0; i < sym_layout.w; i++) |
429 |
|
|
for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
430 |
|
|
{ |
431 |
|
|
sym_layout[i][j ] = |
432 |
root |
1.8 |
sym_layout[i][sym_layout.h - j - 1] = data [i][j]; |
433 |
root |
1.5 |
} |
434 |
|
|
|
435 |
|
|
if (symmetry == SYMMETRY_XY) |
436 |
|
|
for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
437 |
|
|
for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
438 |
|
|
{ |
439 |
|
|
sym_layout[i ][j ] = |
440 |
|
|
sym_layout[i ][sym_layout.h - j - 1] = |
441 |
|
|
sym_layout[sym_layout.w - i - 1][j ] = |
442 |
root |
1.8 |
sym_layout[sym_layout.w - i - 1][sym_layout.h - j - 1] = data [i][j]; |
443 |
root |
1.5 |
} |
444 |
|
|
|
445 |
|
|
/* need to run the isolation remover for some layouts */ |
446 |
|
|
#if 0 |
447 |
|
|
switch (RP->map_layout_style) |
448 |
|
|
{ |
449 |
|
|
case LAYOUT_ONION: |
450 |
|
|
case LAYOUT_SNAKE: |
451 |
|
|
case LAYOUT_SQUARE_SPIRAL: |
452 |
|
|
// safe |
453 |
|
|
break; |
454 |
|
|
|
455 |
|
|
default: |
456 |
|
|
sym_layout.isolation_remover (); |
457 |
|
|
break; |
458 |
|
|
} |
459 |
|
|
#endif |
460 |
|
|
sym_layout.isolation_remover (); |
461 |
|
|
|
462 |
|
|
swap (sym_layout); |
463 |
|
|
} |
464 |
|
|
|
465 |
|
|
//-GPL |
466 |
|
|
|
467 |
|
|
void |
468 |
root |
1.7 |
layout::rotate (int rotation) |
469 |
root |
1.5 |
{ |
470 |
|
|
switch (rotation & 3) |
471 |
|
|
{ |
472 |
|
|
case 2: /* a reflection */ |
473 |
|
|
{ |
474 |
root |
1.7 |
layout new_layout (w, h); |
475 |
root |
1.5 |
|
476 |
|
|
for (int i = 0; i < w; i++) /* copy a reflection back */ |
477 |
|
|
for (int j = 0; j < h; j++) |
478 |
root |
1.8 |
new_layout [i][j] = data [w - i - 1][h - j - 1]; |
479 |
root |
1.5 |
|
480 |
|
|
swap (new_layout); |
481 |
|
|
} |
482 |
|
|
break; |
483 |
|
|
|
484 |
|
|
case 1: |
485 |
|
|
case 3: |
486 |
|
|
{ |
487 |
root |
1.7 |
layout new_layout (h, w); |
488 |
root |
1.5 |
|
489 |
|
|
if (rotation == 1) /* swap x and y */ |
490 |
|
|
for (int i = 0; i < w; i++) |
491 |
|
|
for (int j = 0; j < h; j++) |
492 |
root |
1.8 |
new_layout [j][i] = data [i][j]; |
493 |
root |
1.5 |
|
494 |
|
|
if (rotation == 3) /* swap x and y */ |
495 |
|
|
for (int i = 0; i < w; i++) |
496 |
|
|
for (int j = 0; j < h; j++) |
497 |
root |
1.8 |
new_layout [j][i] = data [w - i - 1][h - j - 1]; |
498 |
root |
1.5 |
|
499 |
|
|
swap (new_layout); |
500 |
|
|
} |
501 |
|
|
break; |
502 |
|
|
} |
503 |
|
|
} |
504 |
|
|
|
505 |
|
|
///////////////////////////////////////////////////////////////////////////// |
506 |
|
|
|
507 |
|
|
//+GPL |
508 |
|
|
|
509 |
|
|
/* |
510 |
root |
1.7 |
* Expands a maze by 2x in each dimension. |
511 |
root |
1.5 |
* H. S. Teoh |
512 |
|
|
*/ |
513 |
|
|
|
514 |
|
|
/* Copy the old tile X into the new one at location (i*2, j*2) and |
515 |
|
|
* fill up the rest of the 2x2 result with \0: |
516 |
|
|
* X ---> X \0 |
517 |
|
|
* \0 \0 |
518 |
|
|
*/ |
519 |
|
|
static void inline |
520 |
root |
1.7 |
expand_misc (layout &newlayout, int i, int j, layout &maze) |
521 |
root |
1.5 |
{ |
522 |
root |
1.7 |
newlayout[i * 2 + rmg_rndm (1)][j * 2 + rmg_rndm (1)] = maze[i][j]; |
523 |
root |
1.5 |
/* (Note: no need to reset rest of 2x2 area to \0 because calloc does that |
524 |
|
|
* for us.) */ |
525 |
|
|
} |
526 |
|
|
|
527 |
|
|
/* Returns a bitmap that represents which squares on the right and bottom |
528 |
|
|
* edges of a square (i,j) match the given character: |
529 |
|
|
* 1 match on (i+1, j) |
530 |
|
|
* 2 match on (i, j+1) |
531 |
|
|
* 4 match on (i+1, j+1) |
532 |
|
|
* and the possible combinations thereof. |
533 |
|
|
*/ |
534 |
|
|
static int noinline |
535 |
root |
1.7 |
calc_pattern (char ch, layout &maze, int i, int j) |
536 |
root |
1.5 |
{ |
537 |
|
|
int pattern = 0; |
538 |
|
|
|
539 |
root |
1.7 |
if (i + 1 < maze.w && maze[i + 1][j] == ch) |
540 |
root |
1.5 |
pattern |= 1; |
541 |
|
|
|
542 |
root |
1.7 |
if (j + 1 < maze.h) |
543 |
root |
1.5 |
{ |
544 |
root |
1.7 |
if (maze[i][j + 1] == ch) |
545 |
root |
1.5 |
pattern |= 2; |
546 |
|
|
|
547 |
root |
1.7 |
if (i + 1 < maze.w && maze[i + 1][j + 1] == ch) |
548 |
root |
1.5 |
pattern |= 4; |
549 |
|
|
} |
550 |
|
|
|
551 |
|
|
return pattern; |
552 |
|
|
} |
553 |
|
|
|
554 |
|
|
/* Expand a wall. This function will try to sensibly connect the resulting |
555 |
|
|
* wall to adjacent wall squares, so that the result won't have disconnected |
556 |
|
|
* walls. |
557 |
|
|
*/ |
558 |
|
|
static void inline |
559 |
root |
1.7 |
expand_wall (layout &newlayout, int i, int j, layout &maze) |
560 |
root |
1.5 |
{ |
561 |
root |
1.7 |
int wall_pattern = calc_pattern ('#', maze, i, j); |
562 |
|
|
int door_pattern = calc_pattern ('D', maze, i, j); |
563 |
root |
1.5 |
int both_pattern = wall_pattern | door_pattern; |
564 |
|
|
|
565 |
|
|
newlayout[i * 2][j * 2] = '#'; |
566 |
|
|
|
567 |
root |
1.7 |
if (i + 1 < maze.w) |
568 |
root |
1.5 |
{ |
569 |
|
|
if (both_pattern & 1) |
570 |
|
|
{ /* join walls/doors to the right */ |
571 |
|
|
/* newlayout[i*2+1][j*2] = '#'; */ |
572 |
root |
1.7 |
newlayout[i * 2 + 1][j * 2] = maze[i + 1][j]; |
573 |
root |
1.5 |
} |
574 |
|
|
} |
575 |
|
|
|
576 |
root |
1.7 |
if (j + 1 < maze.h) |
577 |
root |
1.5 |
{ |
578 |
|
|
if (both_pattern & 2) |
579 |
|
|
{ /* join walls/doors to the bottom */ |
580 |
|
|
/* newlayout[i*2][j*2+1] = '#'; */ |
581 |
root |
1.7 |
newlayout[i * 2][j * 2 + 1] = maze[i][j + 1]; |
582 |
root |
1.5 |
} |
583 |
|
|
|
584 |
|
|
if (wall_pattern == 7) |
585 |
root |
1.7 |
{ /* if orig maze is a 2x2 wall block, |
586 |
root |
1.5 |
* we fill the result with walls. */ |
587 |
|
|
newlayout[i * 2 + 1][j * 2 + 1] = '#'; |
588 |
|
|
} |
589 |
|
|
} |
590 |
|
|
} |
591 |
|
|
|
592 |
|
|
/* This function will try to sensibly connect doors so that they meet up with |
593 |
|
|
* adjacent walls. Note that it will also presumptuously delete (ignore) doors |
594 |
|
|
* that it doesn't know how to correctly expand. |
595 |
|
|
*/ |
596 |
|
|
static void inline |
597 |
root |
1.7 |
expand_door (layout &newlayout, int i, int j, layout &maze) |
598 |
root |
1.5 |
{ |
599 |
root |
1.7 |
int wall_pattern = calc_pattern ('#', maze, i, j); |
600 |
|
|
int door_pattern = calc_pattern ('D', maze, i, j); |
601 |
root |
1.5 |
int join_pattern; |
602 |
|
|
|
603 |
|
|
/* Doors "like" to connect to walls more than other doors. If there is |
604 |
|
|
* a wall and another door, this door will connect to the wall and |
605 |
|
|
* disconnect from the other door. */ |
606 |
|
|
if (wall_pattern & 3) |
607 |
|
|
join_pattern = wall_pattern; |
608 |
|
|
else |
609 |
|
|
join_pattern = door_pattern; |
610 |
|
|
|
611 |
|
|
newlayout[i * 2][j * 2] = 'D'; |
612 |
|
|
|
613 |
root |
1.7 |
if (i + 1 < maze.w) |
614 |
root |
1.5 |
if (join_pattern & 1) |
615 |
|
|
/* there is a door/wall to the right */ |
616 |
|
|
newlayout[i * 2 + 1][j * 2] = 'D'; |
617 |
|
|
|
618 |
root |
1.7 |
if (j + 1 < maze.h) |
619 |
root |
1.5 |
if (join_pattern & 2) |
620 |
|
|
/* there is a door/wall below */ |
621 |
|
|
newlayout[i * 2][j * 2 + 1] = 'D'; |
622 |
|
|
} |
623 |
|
|
|
624 |
|
|
void |
625 |
root |
1.7 |
layout::expand2x () |
626 |
root |
1.5 |
{ |
627 |
root |
1.7 |
layout new_layout (w * 2 - 1, h * 2 - 1); |
628 |
root |
1.5 |
|
629 |
|
|
new_layout.clear (); |
630 |
|
|
|
631 |
|
|
for (int i = 0; i < w; i++) |
632 |
|
|
for (int j = 0; j < h; j++) |
633 |
root |
1.8 |
switch (data [i][j]) |
634 |
root |
1.5 |
{ |
635 |
|
|
case '#': expand_wall (new_layout, i, j, *this); break; |
636 |
|
|
case 'D': expand_door (new_layout, i, j, *this); break; |
637 |
|
|
default: expand_misc (new_layout, i, j, *this); break; |
638 |
|
|
} |
639 |
|
|
|
640 |
|
|
swap (new_layout); |
641 |
|
|
} |
642 |
|
|
|
643 |
|
|
///////////////////////////////////////////////////////////////////////////// |
644 |
|
|
|
645 |
root |
1.7 |
/* checks the maze to see if I can stick a horizontal(dir = 0) wall |
646 |
root |
1.5 |
(or vertical, dir == 1) |
647 |
|
|
here which ends up on other walls sensibly. */ |
648 |
|
|
static int |
649 |
root |
1.7 |
can_make_wall (const layout &maze, int dx, int dy, int dir) |
650 |
root |
1.5 |
{ |
651 |
|
|
int i1; |
652 |
|
|
int length = 0; |
653 |
|
|
|
654 |
|
|
/* dont make walls if we're on the edge. */ |
655 |
|
|
if (dx == 0 || dx == (maze.w - 1) || dy == 0 || dy == (maze.h - 1)) |
656 |
|
|
return -1; |
657 |
|
|
|
658 |
|
|
/* don't make walls if we're ON a wall. */ |
659 |
|
|
if (maze [dx][dy] != 0) |
660 |
|
|
return -1; |
661 |
|
|
|
662 |
|
|
if (dir == 0) /* horizontal */ |
663 |
|
|
{ |
664 |
|
|
int y = dy; |
665 |
|
|
|
666 |
|
|
for (i1 = dx - 1; i1 > 0; i1--) |
667 |
|
|
{ |
668 |
|
|
int sindex = surround_flag2 (maze, i1, y); |
669 |
|
|
|
670 |
|
|
if (sindex == 1) break; |
671 |
|
|
if (sindex != 0) return -1; /* can't make horiz. wall here */ |
672 |
|
|
if (maze[i1][y] != 0) return -1; /* can't make horiz. wall here */ |
673 |
|
|
|
674 |
|
|
length++; |
675 |
|
|
} |
676 |
|
|
|
677 |
|
|
for (i1 = dx + 1; i1 < maze.w - 1; i1++) |
678 |
|
|
{ |
679 |
|
|
int sindex = surround_flag2 (maze, i1, y); |
680 |
|
|
|
681 |
|
|
if (sindex == 2) break; |
682 |
|
|
if (sindex != 0) return -1; /* can't make horiz. wall here */ |
683 |
|
|
if (maze[i1][y] != 0) return -1; /* can't make horiz. wall here */ |
684 |
|
|
|
685 |
|
|
length++; |
686 |
|
|
} |
687 |
|
|
return length; |
688 |
|
|
} |
689 |
|
|
else |
690 |
|
|
{ /* vertical */ |
691 |
|
|
int x = dx; |
692 |
|
|
|
693 |
|
|
for (i1 = dy - 1; i1 > 0; i1--) |
694 |
|
|
{ |
695 |
|
|
int sindex = surround_flag2 (maze, x, i1); |
696 |
|
|
|
697 |
|
|
if (sindex == 4) break; |
698 |
|
|
if (sindex != 0) return -1; /* can't make vert. wall here */ |
699 |
|
|
if (maze[x][i1] != 0) return -1; /* can't make horiz. wall here */ |
700 |
|
|
|
701 |
|
|
length++; |
702 |
|
|
} |
703 |
|
|
|
704 |
|
|
for (i1 = dy + 1; i1 < maze.h - 1; i1++) |
705 |
|
|
{ |
706 |
|
|
int sindex = surround_flag2 (maze, x, i1); |
707 |
|
|
|
708 |
|
|
if (sindex == 8) break; |
709 |
|
|
if (sindex != 0) return -1; /* can't make verti. wall here */ |
710 |
|
|
if (maze[x][i1] != 0) return -1; /* can't make horiz. wall here */ |
711 |
|
|
|
712 |
|
|
length++; |
713 |
|
|
} |
714 |
|
|
|
715 |
|
|
return length; |
716 |
|
|
} |
717 |
|
|
|
718 |
|
|
return -1; |
719 |
|
|
} |
720 |
|
|
|
721 |
|
|
int |
722 |
|
|
make_wall (char **maze, int x, int y, int dir) |
723 |
|
|
{ |
724 |
|
|
maze[x][y] = 'D'; /* mark a door */ |
725 |
|
|
|
726 |
|
|
switch (dir) |
727 |
|
|
{ |
728 |
|
|
case 0: /* horizontal */ |
729 |
|
|
{ |
730 |
|
|
for (int i1 = x - 1; maze[i1][y] == 0; --i1) maze[i1][y] = '#'; |
731 |
|
|
for (int i1 = x + 1; maze[i1][y] == 0; ++i1) maze[i1][y] = '#'; |
732 |
|
|
break; |
733 |
|
|
} |
734 |
|
|
case 1: /* vertical */ |
735 |
|
|
{ |
736 |
|
|
for (int i1 = y - 1; maze[x][i1] == 0; --i1) maze[x][i1] = '#'; |
737 |
|
|
for (int i1 = y + 1; maze[x][i1] == 0; ++i1) maze[x][i1] = '#'; |
738 |
|
|
break; |
739 |
|
|
} |
740 |
|
|
} |
741 |
|
|
|
742 |
|
|
return 0; |
743 |
|
|
} |
744 |
|
|
|
745 |
|
|
void |
746 |
root |
1.7 |
layout::roomify () |
747 |
root |
1.5 |
{ |
748 |
|
|
int tries = w * h / 30; |
749 |
|
|
|
750 |
|
|
for (int ti = 0; ti < tries; ti++) |
751 |
|
|
{ |
752 |
|
|
/* starting location for looking at creating a door */ |
753 |
|
|
int dx = rmg_rndm (w); |
754 |
|
|
int dy = rmg_rndm (h); |
755 |
|
|
|
756 |
|
|
/* results of checking on creating walls. */ |
757 |
|
|
int cx = can_make_wall (*this, dx, dy, 0); /* horizontal */ |
758 |
|
|
int cy = can_make_wall (*this, dx, dy, 1); /* vertical */ |
759 |
|
|
|
760 |
|
|
if (cx == -1) |
761 |
|
|
{ |
762 |
|
|
if (cy != -1) |
763 |
|
|
make_wall (*this, dx, dy, 1); |
764 |
|
|
|
765 |
|
|
continue; |
766 |
|
|
} |
767 |
|
|
|
768 |
|
|
if (cy == -1) |
769 |
|
|
{ |
770 |
|
|
make_wall (*this, dx, dy, 0); |
771 |
|
|
continue; |
772 |
|
|
} |
773 |
|
|
|
774 |
|
|
if (cx < cy) |
775 |
|
|
make_wall (*this, dx, dy, 0); |
776 |
|
|
else |
777 |
|
|
make_wall (*this, dx, dy, 1); |
778 |
|
|
} |
779 |
|
|
} |
780 |
|
|
|
781 |
root |
1.18 |
//-GPL |
782 |
|
|
|
783 |
root |
1.5 |
///////////////////////////////////////////////////////////////////////////// |
784 |
|
|
|
785 |
root |
1.16 |
// inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
786 |
|
|
void |
787 |
|
|
layout::gen_cave (int subtype) |
788 |
|
|
{ |
789 |
|
|
switch (subtype) |
790 |
|
|
{ |
791 |
|
|
// a rough cave |
792 |
|
|
case 0: |
793 |
|
|
fill_rand (rmg_rndm (85, 97)); |
794 |
|
|
break; |
795 |
|
|
|
796 |
|
|
// corridors |
797 |
|
|
case 1: |
798 |
|
|
fill_rand (rmg_rndm (5, 40)); |
799 |
|
|
erode_1_2 (5, 2, 10); |
800 |
|
|
erode_1_2 (5, -1, 10); |
801 |
|
|
erode_1_2 (5, 2, 1); |
802 |
|
|
break; |
803 |
|
|
|
804 |
|
|
// somewhat open, roundish |
805 |
|
|
case 2: |
806 |
|
|
fill_rand (45); |
807 |
|
|
erode_1_2 (5, 0, 5); |
808 |
|
|
erode_1_2 (5, 1, 1); |
809 |
|
|
break; |
810 |
|
|
|
811 |
|
|
// wide open, some room-like structures |
812 |
|
|
case 3: |
813 |
|
|
fill_rand (45); |
814 |
|
|
erode_1_2 (5, 2, 4); |
815 |
|
|
erode_1_2 (5, -1, 3); |
816 |
|
|
break; |
817 |
|
|
} |
818 |
|
|
|
819 |
|
|
border (); |
820 |
|
|
isolation_remover (); |
821 |
|
|
} |
822 |
|
|
|
823 |
root |
1.17 |
void |
824 |
|
|
layout::gen_castle () |
825 |
|
|
{ |
826 |
|
|
fill ('#'); |
827 |
|
|
|
828 |
|
|
for (int n = w * h / 30 + 1; n--; ) |
829 |
|
|
{ |
830 |
|
|
int rw = rmg_rndm (6, 10); |
831 |
|
|
int rh = rmg_rndm (6, 10); |
832 |
|
|
|
833 |
|
|
int rx = rmg_rndm (0, w - rw); |
834 |
|
|
int ry = rmg_rndm (0, h - rh); |
835 |
|
|
|
836 |
|
|
rect (rx, ry, rx + rw, ry + rh, '#'); |
837 |
|
|
fill_rect (rx + 1, ry + 1, rx + rw - 1, ry + rh - 1, 0); |
838 |
|
|
} |
839 |
|
|
|
840 |
|
|
border (); |
841 |
|
|
isolation_remover (0); |
842 |
|
|
} |
843 |
|
|
|
844 |
root |
1.15 |
static void |
845 |
|
|
gen_mixed_ (layout &maze, random_map_params *RP, int dir) |
846 |
|
|
{ |
847 |
|
|
if (maze.w < 20 && maze.h < 20 && !rmg_rndm (3)) |
848 |
|
|
dir = 2; // stop recursion randomly |
849 |
|
|
|
850 |
|
|
if (dir == 0 && maze.w > 16) |
851 |
|
|
{ |
852 |
|
|
int m = rmg_rndm (8, maze.w - 8); |
853 |
|
|
|
854 |
|
|
layout m1 (maze, 0, 0, m , maze.h); gen_mixed_ (m1, RP, !dir); |
855 |
|
|
layout m2 (maze, m, 0, maze.w, maze.h); gen_mixed_ (m2, RP, !dir); |
856 |
|
|
} |
857 |
|
|
else if (dir == 1 && maze.h > 16) |
858 |
|
|
{ |
859 |
|
|
int m = rmg_rndm (8, maze.h - 8); |
860 |
|
|
|
861 |
|
|
layout m1 (maze, 0, 0, maze.w, m ); gen_mixed_ (m1, RP, !dir); |
862 |
|
|
layout m2 (maze, 0, m, maze.w, maze.h); gen_mixed_ (m2, RP, !dir); |
863 |
|
|
} |
864 |
|
|
else |
865 |
|
|
{ |
866 |
|
|
RP->map_layout_style = rmg_rndm (NROFLAYOUTS - 2) + 1; |
867 |
|
|
|
868 |
|
|
if (RP->map_layout_style == LAYOUT_MULTIPLE) |
869 |
|
|
++RP->map_layout_style; |
870 |
|
|
|
871 |
|
|
maze.generate (RP); |
872 |
|
|
} |
873 |
|
|
} |
874 |
|
|
|
875 |
root |
1.16 |
// recursive subdivision with random sublayouts |
876 |
root |
1.15 |
static void |
877 |
|
|
gen_mixed (layout &maze, random_map_params *RP) |
878 |
|
|
{ |
879 |
|
|
random_map_params &rp = *new random_map_params (RP); |
880 |
|
|
gen_mixed_ (maze, &rp, rmg_rndm (2)); |
881 |
|
|
delete &rp; |
882 |
|
|
|
883 |
|
|
maze.border (); |
884 |
|
|
maze.isolation_remover (); |
885 |
|
|
} |
886 |
|
|
|
887 |
root |
1.18 |
//+GPL |
888 |
|
|
|
889 |
root |
1.7 |
/* function selects the maze function and gives it whatever |
890 |
root |
1.5 |
arguments it needs. */ |
891 |
|
|
void |
892 |
root |
1.7 |
layout::generate (random_map_params *RP) |
893 |
root |
1.5 |
{ |
894 |
|
|
switch (RP->map_layout_style) |
895 |
|
|
{ |
896 |
|
|
case LAYOUT_ONION: |
897 |
|
|
map_gen_onion (*this, RP->layoutoptions1, RP->layoutoptions2); |
898 |
|
|
|
899 |
|
|
if (!(rmg_rndm (3)) && !(RP->layoutoptions1 & (RMOPT_WALLS_ONLY | RMOPT_WALL_OFF))) |
900 |
|
|
roomify (); |
901 |
|
|
|
902 |
|
|
break; |
903 |
|
|
|
904 |
|
|
case LAYOUT_MAZE: |
905 |
|
|
maze_gen (*this, RP->get_iv ("maze_type", rmg_rndm (4))); |
906 |
|
|
|
907 |
|
|
if (rmg_rndm (2)) |
908 |
|
|
doorify (); |
909 |
|
|
|
910 |
|
|
break; |
911 |
|
|
|
912 |
|
|
case LAYOUT_SPIRAL: |
913 |
|
|
map_gen_spiral (*this, RP->layoutoptions1); |
914 |
|
|
|
915 |
|
|
if (rmg_rndm (2)) |
916 |
|
|
doorify (); |
917 |
|
|
|
918 |
|
|
break; |
919 |
|
|
|
920 |
|
|
case LAYOUT_ROGUELIKE: |
921 |
|
|
/* Don't put symmetry in rogue maps. There isn't much reason to |
922 |
|
|
* do so in the first place (doesn't make it any more interesting), |
923 |
|
|
* but more importantly, the symmetry code presumes we are symmetrizing |
924 |
|
|
* spirals, or maps with lots of passages - making a symmetric rogue |
925 |
|
|
* map fails because its likely that the passages the symmetry process |
926 |
|
|
* creates may not connect the rooms. |
927 |
|
|
*/ |
928 |
|
|
RP->symmetry_used = SYMMETRY_NONE; |
929 |
|
|
roguelike_layout_gen (*this, RP->layoutoptions1); |
930 |
|
|
/* no doorifying... done already */ |
931 |
|
|
break; |
932 |
|
|
|
933 |
|
|
case LAYOUT_SNAKE: |
934 |
|
|
make_snake_layout (*this, RP->layoutoptions1); |
935 |
|
|
|
936 |
|
|
if (rmg_rndm (2)) |
937 |
|
|
roomify (); |
938 |
|
|
|
939 |
|
|
break; |
940 |
|
|
|
941 |
|
|
case LAYOUT_SQUARE_SPIRAL: |
942 |
|
|
make_square_spiral_layout (*this, RP->layoutoptions1); |
943 |
|
|
|
944 |
|
|
if (rmg_rndm (2)) |
945 |
|
|
roomify (); |
946 |
|
|
|
947 |
|
|
break; |
948 |
|
|
|
949 |
|
|
case LAYOUT_CAVE: |
950 |
|
|
gen_cave (RP->get_iv ("cave_type", rmg_rndm (4))); |
951 |
|
|
|
952 |
|
|
if (rmg_rndm (2)) |
953 |
|
|
doorify (); |
954 |
|
|
|
955 |
|
|
break; |
956 |
|
|
|
957 |
root |
1.17 |
case LAYOUT_CASTLE: |
958 |
|
|
gen_castle (); |
959 |
|
|
|
960 |
|
|
if (rmg_rndm (2)) |
961 |
|
|
doorify (); |
962 |
|
|
|
963 |
|
|
break; |
964 |
|
|
|
965 |
root |
1.15 |
case LAYOUT_MULTIPLE: |
966 |
|
|
gen_mixed (*this, RP); |
967 |
|
|
break; |
968 |
|
|
|
969 |
root |
1.5 |
default: |
970 |
|
|
abort (); |
971 |
|
|
} |
972 |
|
|
} |
973 |
|
|
|
974 |
|
|
//-GPL |
975 |
|
|
|
976 |
root |
1.1 |
#if 0 |
977 |
|
|
static struct demo |
978 |
|
|
{ |
979 |
|
|
demo () |
980 |
|
|
{ |
981 |
|
|
rmg_rndm.seed (time (0)); |
982 |
|
|
|
983 |
root |
1.10 |
for(int i=1;i<100;i++) |
984 |
root |
1.1 |
{ |
985 |
root |
1.10 |
layout maze (40, 25); |
986 |
root |
1.17 |
maze.gen_castle (); |
987 |
|
|
maze.doorify (); |
988 |
root |
1.3 |
maze.print (); |
989 |
root |
1.17 |
exit(0); |
990 |
root |
1.1 |
} |
991 |
root |
1.2 |
|
992 |
root |
1.1 |
exit (1); |
993 |
|
|
} |
994 |
|
|
} demo; |
995 |
|
|
#endif |