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Added -C to make the metaballs bounce right off the ede of the terminal
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AngelJumbo
parent
7ee3cde487
commit
fdf6408cae
65
lavat.c
65
lavat.c
@ -6,18 +6,22 @@
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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typedef struct {
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int x;
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int y;
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int dx;
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int dy;
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} Ball;
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static char *custom = NULL;
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static short color = TB_DEFAULT;
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static int nballs = 10;
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static short speedMult = 1;
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static short rim = 0;
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static short contained = 0;
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static float radius = 100;
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int parse_options(int argc, char *argv[]);
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void print_help();
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@ -43,9 +47,12 @@ int main(int argc, char *argv[]) {
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int maxX = tb_width();
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int maxY = tb_height() * 2;
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int speed = (((1 / (float)(maxX + maxY)) * 5000000) + 50000) / speedMult;
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radius = radius / (float)(maxX * maxY); //(float)(maxX > maxY ? maxX : maxY);
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radius = (radius * radius + (float)(maxX * maxY)) / 15000;
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float innerRadius = radius * (1 + (float)(0.25 * rim));
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int margin = contained ? radius * 6 : 0;
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float sumConst = 0.0225;
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float sumConst2 = sumConst * (1 + (float)(0.25 * rim));
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char *custom2 = custom;
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@ -54,8 +61,8 @@ int main(int argc, char *argv[]) {
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}
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for (int i = 0; i < nballs; i++) {
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balls[i].x = rand() % maxX;
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balls[i].y = rand() % maxY;
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balls[i].x = rand() % (maxX - 2 * margin) + margin;
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balls[i].y = rand() % (maxY - 2 * margin) + margin;
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balls[i].dx = (rand() % 2 == 0) ? -1 : 1;
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balls[i].dy = (rand() % 2 == 0) ? -1 : 1;
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}
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@ -65,10 +72,12 @@ int main(int argc, char *argv[]) {
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// move balls
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for (int i = 0; i < nballs; i++) {
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if (balls[i].x + balls[i].dx >= maxX || balls[i].x + balls[i].dx < 0)
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if (balls[i].x + balls[i].dx >= maxX - margin ||
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balls[i].x + balls[i].dx < margin)
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balls[i].dx *= -1;
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if (balls[i].y + balls[i].dy >= maxY || balls[i].y + balls[i].dy < 0)
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if (balls[i].y + balls[i].dy >= maxY - margin ||
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balls[i].y + balls[i].dy < margin)
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balls[i].dy *= -1;
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balls[i].x += balls[i].dx;
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@ -85,39 +94,41 @@ int main(int argc, char *argv[]) {
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for (int k = 0; k < nballs; k++) {
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int y = j * 2 + j2;
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sum[j2] += 1 / ((float)((i - balls[k].x) * (i - balls[k].x) +
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sum[j2] += (radius * radius) /
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((float)((i - balls[k].x) * (i - balls[k].x) +
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(y - balls[k].y) * (y - balls[k].y)));
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}
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}
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if (!custom) {
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if (sum[0] > radius) {
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if (sum[1] > radius) {
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if (sum[0] > sumConst) {
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if (sum[1] > sumConst) {
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tb_printf(i, j, color | TB_BOLD, 0, "█");
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} else {
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tb_printf(i, j, color | TB_BOLD, 0, "▀");
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}
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} else if (sum[1] > radius) {
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} else if (sum[1] > sumConst) {
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tb_printf(i, j, color | TB_BOLD, 0, "▄");
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}
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if (rim) {
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if (sum[0] > innerRadius) {
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if (sum[1] > innerRadius) {
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if (sum[0] > sumConst2) {
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if (sum[1] > sumConst2) {
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tb_printf(i, j, color, 0, "█");
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} else {
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tb_printf(i, j, color | TB_BOLD, color, "▄");
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}
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} else if (sum[1] > innerRadius) {
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} else if (sum[1] > sumConst2) {
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tb_printf(i, j, color | TB_BOLD, color, "▀");
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}
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}
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} else {
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if (sum[0] > radius) {
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if (sum[0] > sumConst) {
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tb_printf(i, j, color | TB_BOLD, 0, custom2);
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}
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if (rim) {
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if (sum[0] > innerRadius) {
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if (sum[0] > sumConst2) {
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tb_printf(i, j, color, 0, custom);
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}
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}
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@ -143,7 +154,7 @@ int parse_options(int argc, char *argv[]) {
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if (argc == 1)
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return 1;
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int c;
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while ((c = getopt(argc, argv, ":c:s:r:R:b:F:h")) != -1) {
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while ((c = getopt(argc, argv, ":c:s:r:R:b:F:Ch")) != -1) {
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switch (c) {
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case 'c':
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if (strcmp(optarg, "red") == 0) {
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@ -197,6 +208,9 @@ int parse_options(int argc, char *argv[]) {
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case 'F':
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custom = optarg;
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break;
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case 'C':
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contained = 1;
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break;
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case 'h':
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print_help();
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return 0;
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@ -217,20 +231,23 @@ void print_help() {
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printf(
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"Usage: lavat [OPTIONS]\n"
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"OPTIONS:\n"
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" -c COLOR Set color. Available colours: red, blue, yellow, "
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" -c <COLOR> Set color. Available colours: red, blue, yellow, "
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"green, cyan and magenta. \n"
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" Besides those colors the default one is the normal"
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" foreground of your terminal.\n"
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" -s SPEED Set the speed, from 1 to 5. (default 1)\n"
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" -r RADIUS Set the radius of the metaballs, from 1 to 10. "
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" -s <SPEED> Set the speed, from 1 to 5. (default 1)\n"
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" -r <RADIUS> Set the radius of the metaballs, from 1 to 10. "
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"(default: 5)\n"
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" -R RIM Set a \"rim\" for each metaball, sizes from 1 to 5. "
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" -R <RIM> Set a rim for each metaball, sizes from 1 to 5."
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"(default: none)\n"
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" This option does not work with the default color\n"
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" -b NBALLS Set the number of metaballs in the simulation, from "
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"2 to 20. (default: 10)\n"
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" -F CHARS Allows for a custom set of chars to be used\n"
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" This option does not work with the default "
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"color.\n"
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" -b <NBALLS> Set the number of metaballs in the simulation, "
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"from 2 to 20. (default: 10)\n"
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" -F <CHARS> Allows for a custom set of chars to be used\n"
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" Only ascii symbols are supported for now, "
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"wide/unicode chars may appear broken.\n"
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" -C Make metaballs bounce right off the edge of the "
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"terminal.\n"
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" -h Print help.\n");
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}
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