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NetBSD/games/testpat/testpat.c

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/* $NetBSD: testpat.c,v 1.6 2021/11/13 20:59:13 nat Exp $ */
/*-
* Copyright (c) 2016 Nathanial Sloss <nathanialsloss@yahoo.com.au>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: testpat.c,v 1.6 2021/11/13 20:59:13 nat Exp $");
#include <sys/types.h>
#include <sys/time.h>
#include <curses.h>
#include <err.h>
#include <errno.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
static int colour_list[6] = {
COLOR_YELLOW,
COLOR_CYAN,
COLOR_GREEN,
COLOR_MAGENTA,
COLOR_RED,
COLOR_BLUE,
};
static int numcolours = (int)__arraycount(colour_list);
int main(int argc, char *argv[]) {
int i, col, colour, line, x_limit, y_limit, colourOK, spacing;
int xpos, ypos, spacing_residual, spacing_start, spacing_end;
int grid_x, grid_y, **circle_pos;
size_t ncpos;
float grid_unit;
const char *title = "NetBSD";
float coord_x, circle_int;
float a_axis, b_axis;
if (!initscr()) {
errx(EXIT_FAILURE, "Unknown terminal type");
}
curs_set(0);
if (argc > 2) {
endwin();
fprintf(stderr, "Usage: %s <title>", getprogname());
return EXIT_FAILURE;
}
if (argc == 2) {
title = argv[1];
if (strlen(title) >= (size_t)COLS) {
endwin();
errx(EXIT_FAILURE,
"Title string is longer than display cols");
}
}
colourOK = has_colors();
if (COLS < 13 || LINES < 13) {
endwin();
errx(EXIT_FAILURE, "Terminal size must be at least 72x25.");
}
if (colourOK) {
start_color();
init_pair(0, COLOR_WHITE, COLOR_BLACK);
init_pair(1, COLOR_WHITE, COLOR_RED);
init_pair(2, COLOR_WHITE, COLOR_GREEN);
init_pair(3, COLOR_WHITE, COLOR_YELLOW);
init_pair(4, COLOR_WHITE, COLOR_BLUE);
init_pair(5, COLOR_WHITE, COLOR_MAGENTA);
init_pair(6, COLOR_WHITE, COLOR_CYAN);
init_pair(7, COLOR_BLACK, COLOR_WHITE);
attrset(COLOR_PAIR(0));
}
x_limit = (COLS - 1) / 2;
x_limit = x_limit * 2;
y_limit = (LINES - 2) / 2;
y_limit = y_limit * 2;
spacing = 2 * y_limit / numcolours;
spacing_residual = ((2 * y_limit) % numcolours) / 2;
a_axis = y_limit / 2;
b_axis = y_limit;
grid_unit = b_axis / 13;
grid_y = grid_unit;
grid_x = grid_unit * 2;
ncpos = y_limit * sizeof(*circle_pos)
+ y_limit * 2 * sizeof(**circle_pos);
circle_pos = malloc(ncpos);
if (circle_pos == NULL) {
endwin();
errx(EXIT_FAILURE, "Can't allocate circle positions");
}
for (i = 0; i < y_limit; i++) {
circle_pos[i] = (void *)&circle_pos[y_limit + i * 2];
circle_pos[i][0] = circle_pos[i][1] = -1;
}
for (i = 0; i < y_limit; i++) {
/* Draw an ellipse (looks more circular.) */
circle_int = (i - a_axis) / a_axis;
circle_int = 1 - powf(circle_int, 2);
circle_int = circle_int * powf(b_axis, 2);
#if 0
/* Draw a circle, commented out as elipse looks better.*/
circle_int = powf(a_axis, 2) - powf(i - a_axis, 2);
#endif
coord_x = sqrtf(circle_int);
circle_pos[i][0] = (-coord_x + ((float)x_limit / 2));
circle_pos[i][1] = (coord_x + ((float)x_limit / 2));
}
clear();
attron(A_ALTCHARSET);
move(0, 0);
/* Draw a grid. */
for (line = 1; line < y_limit; line += grid_y) {
for (col = 1; col < x_limit; col = col + grid_x) {
xpos = col;
while ((xpos < col + grid_x - 1) && (xpos <
x_limit)) {
mvaddch(line + grid_y - 1, xpos, 113 |
A_ALTCHARSET);
xpos++;
}
if (xpos < x_limit)
mvaddch(line + grid_y - 1, xpos, 110 |
A_ALTCHARSET);
}
ypos = line;
while (ypos < line + grid_y - 1) {
for (col = grid_x - 1; col < x_limit; col += grid_x) {
mvaddch(ypos, col + 1, 120 | A_ALTCHARSET);
}
ypos++;
}
}
for (line = 1; line < y_limit; line += grid_y) {
mvaddch(line + grid_y - 1, 0, 116 | A_ALTCHARSET);
mvaddch(line + grid_y - 1, x_limit, 117 | A_ALTCHARSET);
ypos = line;
while (ypos < line + grid_y - 1) {
mvaddch(ypos, 0, 120 | A_ALTCHARSET);
mvaddch(ypos, x_limit, 120 | A_ALTCHARSET);
ypos++;
}
}
for (col = 1; col < x_limit; col += grid_x) {
mvaddch(0, col + grid_x - 1, 119 | A_ALTCHARSET);
mvaddch(y_limit, col + grid_x - 1, 118 | A_ALTCHARSET);
xpos = col;
while ((xpos < col + grid_x - 1) && (xpos < x_limit)) {
mvaddch(0, xpos, 113 | A_ALTCHARSET);
mvaddch(y_limit, xpos, 113 | A_ALTCHARSET);
xpos++;
}
}
mvaddch(0, 0, 108 | A_ALTCHARSET);
mvaddch(0, x_limit, 107 | A_ALTCHARSET);
mvaddch(y_limit, 0, 109 | A_ALTCHARSET);
mvaddch(y_limit, x_limit, 106 | A_ALTCHARSET);
/* Draw a white circle. */
for (i = 1; i < y_limit; i++) {
for (col = circle_pos[i][0]; col <= circle_pos[i][1]; col++) {
mvaddch(i, col, 32 | A_REVERSE);
}
}
/* Add title segment. */
for (i = roundf(1 * grid_unit); i < roundf(2 * grid_unit); i++) {
if (colourOK)
attrset(COLOR_PAIR(COLOR_BLACK));
else
attrset(A_NORMAL);
for (col = roundf((4 * grid_unit * 2) +
circle_pos[y_limit / 2][0]); col <= roundf((9 * grid_unit
* 2) + circle_pos[y_limit / 2][0]); col++)
mvaddch(i, col, ' ');
}
i = roundf(1.4 * grid_unit);
if (!colourOK)
attrset(A_NORMAL);
col = y_limit - (strlen(title) / 2) + circle_pos[y_limit / 2][0];
mvprintw(i, col, "%s", title);
/* Add black segments at top. */
for (line = roundf(2 * grid_unit); line < 4 * grid_unit; line++) {
if (colourOK)
attrset(COLOR_PAIR(COLOR_BLACK));
else
attrset(A_NORMAL);
for (col = 0; col <= roundf((3.5 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos <= circle_pos[line][1])
mvaddch(line, xpos, ' ');
}
for (col = roundf((9.5 * grid_unit * 2)); col <
roundf((13 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos <= circle_pos[line][1])
mvaddch(line, xpos, ' ');
}
}
/* Add black and white squares close to top. */
int gap = (circle_pos[(int)(5 * grid_unit)][1] -
circle_pos[(int)(5 * grid_unit)][0]) / 13;
for (i = roundf(3 * grid_unit); i < roundf(4 * grid_unit); i++) {
for (xpos = 0; xpos <= x_limit; xpos += 2 * gap) {
if (colourOK)
attrset(COLOR_PAIR(COLOR_BLACK));
else
attrset(A_NORMAL);
for (col = xpos; col < xpos + gap; col++) {
if (col >= circle_pos[i][0] &&
col <= circle_pos[i][1])
mvaddch(i, col, ' ');
}
if (colourOK)
attrset(COLOR_PAIR(COLOR_WHITE));
else
attrset(A_REVERSE);
for (col = xpos + gap ; col < xpos + (2 * gap);
col++) {
if (col >= circle_pos[i][0] &&
col <= circle_pos[i][1])
mvaddch(i, col, ' ');
}
}
}
/* Add colour bars. */
for (i = 0; i < numcolours; i++) {
colour = colour_list[i];
if (colourOK)
attrset(COLOR_PAIR(colour));
else if (i & 1)
attrset(A_NORMAL);
else
attrset(A_REVERSE);
if (i == 0)
spacing_start = 0;
else
spacing_start = (spacing * i) + spacing_residual;
if (i == numcolours - 1)
spacing_end = circle_pos[y_limit / 2][1];
else
spacing_end = (spacing * (i + 1)) + spacing_residual;
for (line = roundf(4 * grid_unit); line < (y_limit / 2);
line++) {
for (col = spacing_start; col < spacing_end; col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos <= circle_pos[line][1])
mvprintw(line, xpos, " ");
}
}
}
/* Add black segment under centre line. */
for (line = y_limit / 2; line < (9.5 * grid_unit); line++) {
if (colourOK)
attrset(COLOR_PAIR(COLOR_BLACK));
else
attrset(A_NORMAL);
for (col = circle_pos[line][0]; col <= circle_pos[line][1];
col++)
mvaddch(line, col, ' ');
for (col = roundf((1.5 * grid_unit * 2)); col <
roundf((4.3 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, 120 | A_ALTCHARSET);
}
for (col = roundf((4.3 * grid_unit * 2)); col <
roundf((7.6 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, '|');
}
for (col = roundf((7.6 * grid_unit * 2)); col <
roundf((11.5 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, 97 | A_ALTCHARSET);
}
}
/* Add black segment close to bottom. */
for (line = roundf(9.5 * grid_unit); line <= (10.5 * grid_unit);
line++) {
if (colourOK)
attrset(COLOR_PAIR(COLOR_BLACK));
else
attrset(A_NORMAL);
for (col = roundf((0 * grid_unit * 2)); col <
roundf((4 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, ' ');
}
for (col = roundf((4 * grid_unit * 2)); col <
roundf((6.5 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, 97 | A_ALTCHARSET);
}
if (colourOK)
attrset(COLOR_PAIR(COLOR_WHITE));
else
attrset(A_REVERSE);
for (col = roundf((6.5 * grid_unit * 2)); col <
roundf((9 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, 97 | A_ALTCHARSET);
}
for (col = roundf((9 * grid_unit * 2)); col <
roundf((13 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, ' ');
}
}
/* Add name segment close to bottom. */
for (line = roundf(10.5 * grid_unit); line < (12 * grid_unit);
line++) {
if (colourOK)
attrset(COLOR_PAIR(COLOR_BLACK));
else
attrset(A_NORMAL);
for (col = roundf(3.5 * grid_unit * 2); col <= roundf(9.5 *
grid_unit * 2); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, ' ');
}
if (colourOK)
attrset(COLOR_PAIR(COLOR_WHITE));
else
attrset(A_REVERSE);
for (col = roundf(0 * grid_unit * 2); col <= roundf(3.5 *
grid_unit * 2); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, ' ');
}
for (col = roundf(9.5 * grid_unit * 2); col <= roundf(13 *
grid_unit * 2); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, ' ');
}
}
/* Add yellow segment at bottom. */
for (line = 12 * grid_unit; line < y_limit; line++) {
if (colourOK)
attrset(COLOR_PAIR(COLOR_YELLOW));
else
attrset(A_REVERSE);
for (col = circle_pos[line][0]; col <= circle_pos[line][1];
col++)
mvaddch(line, col, ' ');
if (colourOK)
attrset(COLOR_PAIR(COLOR_RED));
else
attrset(A_NORMAL);
for (col = roundf((6 * grid_unit * 2)); col <
roundf((7 * grid_unit * 2)); col++) {
xpos = col + circle_pos[y_limit / 2][0];
if (xpos >= circle_pos[line][0] &&
xpos < circle_pos[line][1])
mvaddch(line, xpos, ' ');
}
}
if (colourOK)
attrset(COLOR_PAIR(COLOR_BLACK));
else
attrset(A_NORMAL);
for (line = 6 * grid_unit; line <= (7 * grid_unit) + 1; line++) {
if (colourOK)
attrset(COLOR_PAIR(COLOR_BLACK));
else
attrset(A_NORMAL);
col = x_limit / 2;
if (line != a_axis) {
mvaddch(line, col - 1, ' ');
mvaddch(line, col, 120 | A_ALTCHARSET);
mvaddch(line, col + 1, ' ');
}
}
line = y_limit / 2;
for (col = 1; col < x_limit; col = col + grid_x) {
xpos = col;
while (xpos < col + grid_x - 1) {
if (xpos >= circle_pos[line][0]
&& xpos < circle_pos[line][1])
mvaddch(line, xpos, 113 | A_ALTCHARSET);
xpos++;
}
if (xpos >= circle_pos[line][0] && xpos < circle_pos[line][1])
mvaddch(line, xpos, 110 | A_ALTCHARSET);
}
line = y_limit / 2;
col = x_limit / 2;
mvaddch(line, col, 110 | A_ALTCHARSET);
mvaddch(line, col - 1, 113 | A_ALTCHARSET);
mvaddch(line, col + 1, 113 | A_ALTCHARSET);
refresh();
getch();
endwin();
return EXIT_SUCCESS;
}
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