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  1. /*
  2. * cacafire fire demo for libcaca
  3. * Copyright (c) 2003 Sam Hocevar <sam@zoy.org>
  4. * 1998, 1999, 2001 Jan Hubicka <hubicka@freesoft.cz>
  5. * All Rights Reserved
  6. *
  7. * $Id$
  8. *
  9. * This program is free software; you can redistribute it and/or
  10. * modify it under the terms of the GNU Lesser General Public
  11. * License as published by the Free Software Foundation; either
  12. * version 2 of the License, or (at your option) any later version.
  13. *
  14. * This program is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17. * Lesser General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU Lesser General Public
  20. * License along with this program; if not, write to the Free Software
  21. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  22. * 02111-1307 USA
  23. */
  24. #ifdef LIBCACA
  25. #include "config.h"
  26. #include <stdio.h>
  27. #include <stdlib.h>
  28. #include <string.h>
  29. #include "caca.h"
  30. #else
  31. #include <stdio.h>
  32. #include "aalib.h"
  33. #define XSIZ aa_imgwidth(context)
  34. #define YSIZ (aa_imgheight(context)-4)
  35. #endif
  36. #define MAXTABLE (256*5)
  37. #ifdef LIBCACA
  38. static int XSIZ, YSIZ;
  39. static struct caca_bitmap *caca_bitmap;
  40. static char *bitmap;
  41. static int pause = 0;
  42. #else
  43. static aa_context *context;
  44. static aa_renderparams *params;
  45. static aa_palette palette;
  46. #endif
  47. static unsigned int table[MAXTABLE];
  48. #ifdef LIBCACA
  49. static int const pal[] =
  50. #else
  51. __AA_CONST static int pal[] =
  52. #endif
  53. {
  54. 0, 0, 0, 0, 0, 6, 0, 0, 6, 0, 0, 7, 0, 0, 8, 0, 0, 8, 0, 0, 9, 0, 0, 10,
  55. 2, 0, 10, 4, 0, 9, 6, 0, 9, 8, 0, 8, 10, 0, 7, 12, 0, 7, 14, 0, 6, 16, 0, 5,
  56. 18, 0, 5, 20, 0, 4, 22, 0, 4, 24, 0, 3, 26, 0, 2, 28, 0, 2, 30, 0, 1, 32, 0, 0,
  57. 32, 0, 0, 33, 0, 0, 34, 0, 0, 35, 0, 0, 36, 0, 0, 36, 0, 0, 37, 0, 0, 38, 0, 0,
  58. 39, 0, 0, 40, 0, 0, 40, 0, 0, 41, 0, 0, 42, 0, 0, 43, 0, 0, 44, 0, 0, 45, 0, 0,
  59. 46, 1, 0, 47, 1, 0, 48, 2, 0, 49, 2, 0, 50, 3, 0, 51, 3, 0, 52, 4, 0, 53, 4, 0,
  60. 54, 5, 0, 55, 5, 0, 56, 6, 0, 57, 6, 0, 58, 7, 0, 59, 7, 0, 60, 8, 0, 61, 8, 0,
  61. 63, 9, 0, 63, 9, 0, 63, 10, 0, 63, 10, 0, 63, 11, 0, 63, 11, 0, 63, 12, 0, 63, 12, 0,
  62. 63, 13, 0, 63, 13, 0, 63, 14, 0, 63, 14, 0, 63, 15, 0, 63, 15, 0, 63, 16, 0, 63, 16, 0,
  63. 63, 17, 0, 63, 17, 0, 63, 18, 0, 63, 18, 0, 63, 19, 0, 63, 19, 0, 63, 20, 0, 63, 20, 0,
  64. 63, 21, 0, 63, 21, 0, 63, 22, 0, 63, 22, 0, 63, 23, 0, 63, 24, 0, 63, 24, 0, 63, 25, 0,
  65. 63, 25, 0, 63, 26, 0, 63, 26, 0, 63, 27, 0, 63, 27, 0, 63, 28, 0, 63, 28, 0, 63, 29, 0,
  66. 63, 29, 0, 63, 30, 0, 63, 30, 0, 63, 31, 0, 63, 31, 0, 63, 32, 0, 63, 32, 0, 63, 33, 0,
  67. 63, 33, 0, 63, 34, 0, 63, 34, 0, 63, 35, 0, 63, 35, 0, 63, 36, 0, 63, 36, 0, 63, 37, 0,
  68. 63, 38, 0, 63, 38, 0, 63, 39, 0, 63, 39, 0, 63, 40, 0, 63, 40, 0, 63, 41, 0, 63, 41, 0,
  69. 63, 42, 0, 63, 42, 0, 63, 43, 0, 63, 43, 0, 63, 44, 0, 63, 44, 0, 63, 45, 0, 63, 45, 0,
  70. 63, 46, 0, 63, 46, 0, 63, 47, 0, 63, 47, 0, 63, 48, 0, 63, 48, 0, 63, 49, 0, 63, 49, 0,
  71. 63, 50, 0, 63, 50, 0, 63, 51, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0, 63, 52, 0,
  72. 63, 53, 0, 63, 53, 0, 63, 53, 0, 63, 53, 0, 63, 54, 0, 63, 54, 0, 63, 54, 0, 63, 54, 0,
  73. 63, 54, 0, 63, 55, 0, 63, 55, 0, 63, 55, 0, 63, 55, 0, 63, 56, 0, 63, 56, 0, 63, 56, 0,
  74. 63, 56, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 57, 0, 63, 58, 0, 63, 58, 0,
  75. 63, 58, 0, 63, 58, 0, 63, 59, 0, 63, 59, 0, 63, 59, 0, 63, 59, 0, 63, 60, 0, 63, 60, 0,
  76. 63, 60, 0, 63, 60, 0, 63, 60, 0, 63, 61, 0, 63, 61, 0, 63, 61, 0, 63, 61, 0, 63, 62, 0,
  77. 63, 62, 0, 63, 62, 0, 63, 62, 0, 63, 63, 0, 63, 63, 1, 63, 63, 2, 63, 63, 3, 63, 63, 4,
  78. 63, 63, 5, 63, 63, 6, 63, 63, 7, 63, 63, 8, 63, 63, 9, 63, 63, 10, 63, 63, 10, 63, 63, 11,
  79. 63, 63, 12, 63, 63, 13, 63, 63, 14, 63, 63, 15, 63, 63, 16, 63, 63, 17, 63, 63, 18, 63, 63, 19,
  80. 63, 63, 20, 63, 63, 21, 63, 63, 21, 63, 63, 22, 63, 63, 23, 63, 63, 24, 63, 63, 25, 63, 63, 26,
  81. 63, 63, 27, 63, 63, 28, 63, 63, 29, 63, 63, 30, 63, 63, 31, 63, 63, 31, 63, 63, 32, 63, 63, 33,
  82. 63, 63, 34, 63, 63, 35, 63, 63, 36, 63, 63, 37, 63, 63, 38, 63, 63, 39, 63, 63, 40, 63, 63, 41,
  83. 63, 63, 42, 63, 63, 42, 63, 63, 43, 63, 63, 44, 63, 63, 45, 63, 63, 46, 63, 63, 47, 63, 63, 48,
  84. 63, 63, 49, 63, 63, 50, 63, 63, 51, 63, 63, 52, 63, 63, 52, 63, 63, 53, 63, 63, 54, 63, 63, 55,
  85. 63, 63, 56, 63, 63, 57, 63, 63, 58, 63, 63, 59, 63, 63, 60, 63, 63, 61, 63, 63, 62, 63, 63, 63};
  86. static void
  87. initialize (void)
  88. {
  89. int i;
  90. #ifdef LIBCACA
  91. int r[256], g[256], b[256], a[256];
  92. #endif
  93. #ifdef LIBCACA
  94. if (caca_init())
  95. {
  96. printf ("Failed to initialize libcaca\n");
  97. exit (1);
  98. }
  99. caca_set_delay(10000);
  100. XSIZ = caca_get_width() * 2;
  101. YSIZ = caca_get_height() * 2 - 4;
  102. #else
  103. context = aa_autoinit (&aa_defparams);
  104. if (context == NULL)
  105. {
  106. printf ("Failed to initialize aalib\n");
  107. exit (1);
  108. }
  109. aa_autoinitkbd (context, 0);
  110. params = aa_getrenderparams ();
  111. #endif
  112. for (i = 0; i < 256; i++)
  113. #ifdef LIBCACA
  114. {
  115. r[i] = pal[i * 3] * 64;
  116. g[i] = pal[i * 3 + 1] * 64;
  117. b[i] = pal[i * 3 + 2] * 64;
  118. a[i] = 0xfff;
  119. }
  120. #else
  121. aa_setpalette (palette, i, pal[i * 3] * 4,
  122. pal[i * 3 + 1] * 4, pal[i * 3 + 2] * 4);
  123. #endif
  124. #ifdef LIBCACA
  125. caca_bitmap = caca_create_bitmap(8, XSIZ, YSIZ - 2, XSIZ, 0, 0, 0, 0);
  126. caca_set_bitmap_palette(caca_bitmap, r, g, b, a);
  127. bitmap = malloc(4 * caca_get_width() * caca_get_height() * sizeof(char));
  128. memset(bitmap, 0, 4 * caca_get_width() * caca_get_height());
  129. #else
  130. aa_hidecursor (context);
  131. #endif
  132. }
  133. static void
  134. uninitialize (void)
  135. {
  136. #ifdef LIBCACA
  137. caca_end();
  138. #else
  139. aa_close (context);
  140. #endif
  141. exit (0);
  142. }
  143. static void
  144. gentable (void)
  145. {
  146. unsigned int i, p2;
  147. unsigned int minus = 800 / YSIZ;
  148. if (minus == 0)
  149. minus = 1;
  150. for (i = 0; i < MAXTABLE; i++)
  151. {
  152. if (i > minus)
  153. {
  154. p2 = (i - minus) / 5;
  155. table[i] = p2;
  156. }
  157. else
  158. table[i] = 0;
  159. }
  160. }
  161. #define MA 5
  162. static void
  163. firemain (void)
  164. {
  165. register unsigned int i;
  166. unsigned char *p;
  167. #ifndef LIBCACA
  168. char *bitmap = aa_image (context);
  169. #endif
  170. i = 0;
  171. #define END (bitmap + XSIZ * YSIZ)
  172. for (p = bitmap; p <= (unsigned char *) (END); p += 1)
  173. {
  174. *p = table[(*(p + XSIZ - 1) + *(p + XSIZ + 1) + *(p + XSIZ)) +
  175. (*(p + 2 * XSIZ - 1) + *(p + 2 * XSIZ + 1))];
  176. }
  177. }
  178. #define min(x,y) ((x)<(y)?(x):(y))
  179. static void
  180. drawfire (void)
  181. {
  182. unsigned int i, last1, i1, i2;
  183. static int loop = 0, sloop = 0;
  184. static unsigned int height = 0;
  185. register unsigned char *p;
  186. #ifndef LIBCACA
  187. char *bitmap = aa_image (context);
  188. #else
  189. if(pause)
  190. goto paused;
  191. #endif
  192. height++;
  193. loop--;
  194. if (loop < 0)
  195. loop = rand () % 3, sloop++;;
  196. i1 = 1;
  197. i2 = 4 * XSIZ + 1;
  198. for (p = (char *) bitmap + XSIZ * (YSIZ + 0);
  199. p < ((unsigned char *) bitmap + XSIZ * (YSIZ + 1));
  200. p++, i1 += 4, i2 -= 4)
  201. {
  202. last1 = rand () % min (i1, min (i2, height));
  203. i = rand () % 6;
  204. for (; p < (unsigned char *) bitmap + XSIZ * (YSIZ + 1) && i != 0;
  205. p++, i--, i1 += 4, i2 -= 4)
  206. *p = last1, last1 += rand () % 6 - 2, *(p + XSIZ) = last1, last1 +=
  207. rand () % 6 - 2;
  208. *(p + 2 * XSIZ) = last1, last1 += rand () % 6 - 2;
  209. }
  210. i = 0;
  211. firemain ();
  212. #ifdef LIBCACA
  213. paused:
  214. caca_draw_bitmap(0, 0, caca_get_width() - 1, caca_get_height() - 1,
  215. caca_bitmap, bitmap);
  216. caca_refresh();
  217. /*XSIZ = caca_get_width() * 2;
  218. YSIZ = caca_get_height() * 2 - 4;*/
  219. #else
  220. aa_renderpalette (context, palette, params, 0, 0, aa_scrwidth (context),
  221. aa_scrheight (context));
  222. aa_flush (context);
  223. #endif
  224. }
  225. static void
  226. game (void)
  227. {
  228. #ifndef LIBCACA
  229. int event;
  230. #endif
  231. gentable ();
  232. #ifdef LIBCACA
  233. for(;;)
  234. #else
  235. while (!(event = aa_getevent (context, 0)) || event == AA_RESIZE)
  236. #endif
  237. {
  238. #ifdef LIBCACA
  239. switch (caca_get_event(CACA_EVENT_KEY_PRESS))
  240. {
  241. case CACA_EVENT_KEY_PRESS | CACA_KEY_ESCAPE: return;
  242. case CACA_EVENT_KEY_PRESS | ' ': pause = !pause;
  243. }
  244. #endif
  245. drawfire ();
  246. }
  247. }
  248. int
  249. main (int argc, char **argv)
  250. {
  251. #ifndef LIBCACA
  252. if (!aa_parseoptions (NULL, NULL, &argc, argv) || argc != 1)
  253. {
  254. printf ("%s", aa_help);
  255. exit (1);
  256. }
  257. #endif
  258. initialize ();
  259. #ifndef LIBCACA
  260. aa_resizehandler (context, (void *) aa_resize);
  261. #endif
  262. game ();
  263. uninitialize ();
  264. return 1;
  265. }