From 8e501fd497be3efe2bb93a8383db1bb360a8f69f Mon Sep 17 00:00:00 2001
From: petra <petra@tilde.town>
Date: Wed, 23 Sep 2020 10:33:53 +0000
Subject: [PATCH] An initial attempt to implement urw-keys

---
 .gitignore |  3 ++
 main.cpp   | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 85 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 main.cpp

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a21c043
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+ntown
+*.swp
+a.out
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..06d4073
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,82 @@
+#include <ncurses.h>
+#include <ctime>
+
+enum dir {
+    N = 0, NE = 1, E = 2, SE = 3, S = 4, SW = 5, W = 6, NW = 7
+};
+
+dir rotate(dir initial_d, int rot_dir) {
+    return (dir)((initial_d + rot_dir) % 8);
+}
+
+int main() {
+    initscr();
+    start_color();
+    cbreak();
+    noecho();
+    keypad(stdscr, TRUE);
+    curs_set(0);
+    int pos_x = 1;
+    int pos_y = 1;
+    dir direction = dir::E;
+    mvaddch(pos_y, pos_x, 'O');
+    int ch;
+    while ((ch = wgetch(stdscr)) != 'q') {
+        int rotd = 0;
+        int movval = 0;
+        switch (ch) {
+            case KEY_LEFT:
+                rotd = -1;
+                break;
+            case KEY_RIGHT:
+                rotd = 1;
+                break;
+            case KEY_DOWN:
+                movval = -1;
+                break;
+            case KEY_UP:
+                movval = 1;
+                break;
+            default:
+                break;
+        };
+        direction = rotate(direction, rotd);
+        switch (direction) {
+            case dir::N:
+                pos_x -= movval;
+                break;
+            case dir::S:
+                pos_x += movval;
+                break;
+            case dir::W:
+                pos_y -= movval;
+                break;
+            case dir::E:
+                pos_y += movval;
+                break;
+            case dir::NE:
+                pos_x += movval;
+                pos_y -= movval;
+                break;
+            case dir::NW:
+                pos_x -= movval;
+                pos_y -= movval;
+                break;
+            case dir::SE:
+                pos_x += movval;
+                pos_y += movval;
+                break;
+            case dir::SW:
+                pos_x -= movval;
+                pos_y += movval;
+                break;
+            default:
+                break;
+        };
+        pos_x = pos_x % COLS;
+        pos_y = pos_y % LINES;
+        refresh();
+        mvaddch(pos_y, pos_x, 'O');
+    }
+    endwin();
+}