/* ASCII Mystify * * Author: Kristian Gunstone * * 'gcc -Wall -lm -lncurses -o mystify mystify.c' * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include #include #include #include #include #include #include #define DEFAULT_SHAPES 3 /* Max 6 due to the colorspace in console */ #define DEFAULT_POINTS 4 #define DEFAULT_DELAY 10000 #define VERSION "0.3" static struct option const long_options[] = { {"shapes", required_argument, NULL, 's'}, {"points", required_argument, NULL, 'p'}, {"delay", required_argument, NULL, 'd'}, {"help", no_argument, NULL, 'h'}, {NULL, 0, NULL, 0} }; void usage(char *self){ printf("ASCII Mystify v%s\n" "Copyright (C) 2007 Kristian Gunstone\n\n" "This is free software; see the source for copying conditions. " "There is NO\nwarranty; not even for MERCHANTABILITY or FITNESS " "FOR A PARTICULAR PURPOSE.\n\n", VERSION); printf("Usage: %s [OPTION]...\n" " -s, --shapes number of shapes(1-6) default=%d\n" " -p, --points points per shape(2-100) default=%d\n" " -d, --delay refresh delay in ns default=%d\n\n", self, DEFAULT_SHAPES, DEFAULT_POINTS, DEFAULT_DELAY); } void line(float x1, float y1, float x2, float y2, int character) { float d, dx, dy, i; dx = (x2 - x1); dy = (y2 - y1); d = sqrt(dx * dx + dy * dy); for(i = 0; i <= d; i+= 0.5) mvaddch( (int)(y1 + dy * (i / d)), (int)(x1 + dx * (i / d)), character); } int main(int argc, char *argv[]){ long delay; int shapes, points; int i, a; int term_w, term_h; typedef struct{ float x1, x2, y1, y2; float xf1, xf2, yf1, yf2; }pointEx; typedef struct{ pointEx *point; int color; }shapeEx; shapeEx *shape; shapes = DEFAULT_SHAPES; points = DEFAULT_POINTS; delay = DEFAULT_DELAY; while( (i = getopt_long(argc, argv, "s:p:d:h", long_options, NULL) ) != -1 ){ switch(i){ case 's': shapes = atoi(optarg); break; case 'p': points = atoi(optarg); break; case 'd': delay = atoi(optarg); break; case 'h': usage(argv[0]); exit(0); break; } } /* Input check */ if(shapes < 1 || shapes > 6){ fprintf(stderr, "Shapes must be 1-6.\n"); exit(1); } if(points < 2 || points > 100){ fprintf(stderr, "Points must be 1-100.\n"); exit(1); } if(delay < 0 || delay > 5000000){ fprintf(stderr, "Delay must be 0-5000000.\n"); exit(1); } /* Allocate memory */ shape = calloc(1, sizeof(shapeEx) * shapes); for(i = 0; i < shapes; i++) shape[i].point = calloc(1, sizeof(pointEx) * points); /* Init curses */ initscr(); curs_set(0); cbreak(); nodelay(stdscr, TRUE); noecho(); start_color(); init_pair(0, COLOR_BLACK, COLOR_BLACK); term_w = COLS - 1; term_h = LINES; srand(time(NULL)); /* Init shapes */ for(i = 0; i < shapes; i++){ shape[i].color = 1 + i; init_pair(1 + i, COLOR_BLACK, shape[i].color); shape[i].point[0].x1 = rand()%term_w; shape[i].point[0].y1 = rand()%term_h; shape[i].point[0].x2 = rand()%term_w; shape[i].point[0].y2 = rand()%term_h; for(a = 1; a < (points - 1); a++){ shape[i].point[a].x1 = shape[i].point[a - 1].x2; shape[i].point[a].y1 = shape[i].point[a - 1].y2; shape[i].point[a].x2 = rand()%term_w; shape[i].point[a].y2 = rand()%term_h; } shape[i].point[points-1].x1 = shape[i].point[points-2].x2; shape[i].point[points-1].y1 = shape[i].point[points-2].y2; shape[i].point[points-1].x2 = shape[i].point[0].x1; shape[i].point[points-1].y2 = shape[i].point[0].y1; for(a = 0; a < points; a++){ shape[i].point[a].xf1 = rand()%2?-.2:.2; shape[i].point[a].yf1 = rand()%2?-.2:.2; shape[i].point[a].xf2 = rand()%2?-.2:.2; shape[i].point[a].yf2 = rand()%2?-.2:.2; } } while(getch() != 27){ for(i = 0; i < shapes; i++){ attron(COLOR_PAIR(0)); for(a = 0; a < points; a++) line(shape[i].point[a].x1, shape[i].point[a].y1, shape[i].point[a].x2, shape[i].point[a].y2, 32); attroff(COLOR_PAIR(0)); shape[i].point[0].x1 += shape[i].point[0].xf1; shape[i].point[0].y1 += shape[i].point[0].yf1; shape[i].point[0].x2 += shape[i].point[0].xf2; shape[i].point[0].y2 += shape[i].point[0].yf2; for(a = 1; a < (points - 1); a++){ shape[i].point[a].x1 = shape[i].point[a - 1].x2; shape[i].point[a].y1 = shape[i].point[a - 1].y2; shape[i].point[a].x2+= shape[i].point[a].xf2; shape[i].point[a].y2+= shape[i].point[a].yf2; } shape[i].point[points-1].x1 = shape[i].point[points-2].x2; shape[i].point[points-1].y1 = shape[i].point[points-2].y2; shape[i].point[points-1].x2 = shape[i].point[0].x1; shape[i].point[points-1].y2 = shape[i].point[0].y1; for(a = 0; a < points; a++){ if(shape[i].point[a].x1 < 0 || shape[i].point[a].x1 > term_w) shape[i].point[a].xf1 = -shape[i].point[a].xf1; if(shape[i].point[a].y1 < 0 || shape[i].point[a].y1 > term_h) shape[i].point[a].yf1 = -shape[i].point[a].yf1; if(shape[i].point[a].x2 < 0 || shape[i].point[a].x2 > term_w) shape[i].point[a].xf2 = -shape[i].point[a].xf2; if(shape[i].point[a].y2 < 0 || shape[i].point[a].y2 > term_h) shape[i].point[a].yf2 = -shape[i].point[a].yf2; } attron(COLOR_PAIR(i+1)); for(a = 0; a < points; a++) line(shape[i].point[a].x1, shape[i].point[a].y1, shape[i].point[a].x2, shape[i].point[a].y2, 32); attroff(COLOR_PAIR(1+i)); } usleep(delay); } /* Deinit */ endwin(); for(i = 0; i < shapes; i++) free(shape[i].point); free(shape); return 0; }