1 files changed, 56 insertions, 0 deletions
diff --git a/src/tower.c b/src/tower.c
new file mode 100644
index 0000000..a92a201
--- /dev/null
+++ b/src/tower.c
@@ -0,0 +1,56 @@
+#include "tower.h"
+
+static uint8_t	st_tower_pop(t_tower tower)
+{
+	if (tower.len == 0)
+		abort();
+	uint8_t top = tower.data[tower.len - 1];
+	tower.len--;
+	return top;
+}
+
+static void	st_tower_push(t_tower tower, uint8_t top)
+{
+	if (tower.len == MAX_HEIGHT)
+		abort();
+	tower.data[tower.len] = top;
+	tower.len++;
+}
+
+void	towers_init(t_tower towers[3], size_t disk_num)
+{
+	memset(towers[0].data, 0, sizeof(t_tower));
+	memset(towers[1].data, 0, sizeof(t_tower));
+	memset(towers[2].data, 0, sizeof(t_tower));
+	for (size_t i = 0; i < disk_num; i++)
+		towers[0].data[i] = disk_num - i;
+	towers[0].len = disk_num;
+	towers[1].len = 0;
+	towers[2].len = 0;
+}
+
+void	towers_move(t_tower towers[3], size_t from, size_t to)
+{
+	if (from > 2 || to > 2)
+		abort();
+	st_tower_push(towers[to], st_tower_pop(towers[from]));
+}
+
+void	tower_put(t_tower *tower, WINDOW *win, int highlight_level)
+{
+	int height, width;
+	getmaxyx(win, height, width);
+
+	if (highlight_level == 1)
+		wattron(win, A_BOLD);
+	mvwvline(win, 1, width / 2, '|', height - 2);
+
+	for (size_t i = 0; i < tower->len; i++)
+	{
+		int disk_width = tower->data[i] * 2 + 1;
+		mvwhline(win, height - i - 2, width / 2 - disk_width / 2, '#', disk_width);
+	}
+	if (highlight_level == 1)
+		wattroff(win, A_BOLD);
+	wrefresh(win);
+}