Update architecture

1 files changed, 46 insertions, 0 deletions

diff --git a/src/client/cursor.cpp b/src/client/cursor.cpp
new file mode 100644
index 0000000..226b8a5
--- /dev/null
+++ b/src/client/cursor.cpp
@@ -0,0 +1,46 @@
+class Cursor {
+	int x;
+	int y;
+	Window &w;
+
+	public:
+
+	Cursor(Window &w) : x(0), y(0), w(w) {}
+
+	char element() {
+		return w.view[x + y * w.width];
+	}
+
+	void move_left() {
+		if (x == 0) {
+			if (y != 0) {
+				y--;
+				x = w.line_ends[y];
+			}
+		} else {
+			x--;
+		}
+	}
+
+	void move_right() {
+		if (element()) {
+			if (element() == '\n') {
+				x = 0;
+				y++;
+			} else {
+				x++;
+			}
+		}
+	}
+
+	void move_up() {
+	}
+
+	void move_down() {
+	}
+
+	void update() {
+		w.set_cursor(x, y);
+	}
+};
+