From c43379f45418ae5e789f613253def7e5fa3fb938 Mon Sep 17 00:00:00 2001
From: 8nl <8nl@noreply.git.macaw.me>
Date: Fri, 27 Dec 2024 12:09:04 +0000
Subject: [PATCH] Upload files to "/"

---
 xmas.c | 161 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100644 xmas.c

diff --git a/xmas.c b/xmas.c
new file mode 100644
index 0000000..1c76041
--- /dev/null
+++ b/xmas.c
@@ -0,0 +1,161 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <signal.h>
+#include <ncurses.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+
+typedef struct {
+	struct winsize ws;
+
+	/* m middle */
+	size_t mx;
+	size_t my;
+} SCREEN_SIZE;
+SCREEN_SIZE ss;
+
+typedef struct {
+	char *str;
+	int color;
+	int x;
+	int y;
+} ENTITY;
+ENTITY names[10];
+
+enum {
+	COL_RED = 1,
+	COL_GREEN,
+	COL_BLUE,
+	COL_YELLOW,
+	COL_CYAN,
+	COL_MAGENTA,
+	COL_COUNT
+};
+
+char *persons[] = {
+	"PseudoCube",
+	"wonderfox",
+	"DwarfX",
+	"prahou",
+	"8nl",
+	"blit",
+	"kir4ik52",
+	"cybertailor",
+	"ej",
+	"Sarotar",
+	"continue",
+	"mittorn",
+	"edges",
+	"mirsusarch",
+	"Worst",
+	"Timukra",
+	"mnnwwn",
+	"dlmk",
+	"vlnst"
+};
+
+void color_print(const int y, const int x, const char *str, const int color) {
+	attron(COLOR_PAIR(color));
+	mvprintw(y, x, "%s", str);
+	attroff(COLOR_PAIR(color));
+}
+
+void draw_tree(void) {
+	mvprintw(ss.ws.ws_row - 1, ss.mx - 2, "|___|");
+	for (unsigned int i = ss.ws.ws_row - 2; i > 0; i--)
+		for (unsigned int j = 0; j < i * 2; j++)
+			color_print(i, (int)(ss.mx - i + j), "#", COL_GREEN);
+}
+
+void init_names(int i, int y) {
+	names[i].y = y;
+	names[i].x = ss.mx + (-6 + rand() % 12);
+	names[i].str = persons[rand() % (sizeof(persons) / sizeof(char *))];
+
+	int color = rand() % COL_COUNT;
+	while (color == COL_GREEN)
+		color = rand() % COL_COUNT;
+
+	names[i].color = color;
+}
+
+void update_names(void) {
+	for (size_t i = 0; i < ARRAY_SIZE(names); i++) {
+		names[i].x += -3 + rand() % 6;
+		names[i].y++;
+
+		if (names[i].y >= ss.ws.ws_row)
+			init_names(i, 0);
+	}
+}
+
+void sig_handler(int sig) {
+	(void)sig;
+
+	endwin();
+	exit(0);
+}
+
+int main(void) {
+	srand(getpid());
+
+	/* Fill SCREEN_SIZE structure */
+	if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ss.ws) < 0) {
+		fprintf(stderr, "ioctl failed: %s\n", strerror(errno));
+		return 1;
+	}
+
+	ss.mx = ss.ws.ws_col / 2;
+	ss.my = ss.ws.ws_row / 2;
+
+	/* Init ncurses */
+	initscr();
+	noecho();
+	cbreak();
+	curs_set(0);
+
+	/* Colors */
+	start_color();
+	init_pair(1, COLOR_RED, COLOR_BLACK);
+	init_pair(2, COLOR_GREEN, COLOR_BLACK);
+	init_pair(3, COLOR_BLUE, COLOR_BLACK);
+	init_pair(4, COLOR_YELLOW, COLOR_BLACK);
+	init_pair(5, COLOR_CYAN, COLOR_BLACK);
+	init_pair(6, COLOR_MAGENTA, COLOR_BLACK);
+
+	if (!has_colors()) {
+		endwin();
+
+		fputs("colors not supported by your terminal", stderr);
+		return 1;
+	}
+
+	/* Update siganls */
+	signal(SIGINT, sig_handler);
+	signal(SIGKILL, sig_handler);
+
+	/* Update names */
+	for (size_t i = 0; i < ARRAY_SIZE(names); i++)
+		init_names(i, i);
+
+	/* Main */
+	while (1) {
+		clear();
+
+		char *msg = "HAPPY NEW YEAR!";
+		mvprintw(0, ss.mx - strlen(msg) / 2, "%s", msg);
+
+		draw_tree();
+
+		update_names();
+		for (size_t i = 0; i < ARRAY_SIZE(names); i++)
+			color_print(names[i].y, names[i].x, names[i].str, names[i].color);
+
+		refresh();
+		usleep(700000);
+	}
+}