Add vertical movement

2 files changed, 26 insertions, 0 deletions

diff --git a/src/client/cursor.cpp b/src/client/cursor.cpp
index 65e32bf..82548b1 100644
--- a/src/client/cursor.cpp
+++ b/src/client/cursor.cpp
@@ -32,9 +32,21 @@ struct Cursor {
 	}
 
 	void move_up() {
+		if (y != 0) {
+			y--;
+			if (x > w.line_ends[y]) {
+				x = w.line_ends[y];
+			}
+		}
 	}
 
 	void move_down() {
+		if (element()) {
+			y++;
+			if (x > w.line_ends[y]) {
+				x = w.line_ends[y];
+			}
+		}
 	}
 
 	void update() {
diff --git a/src/client/jetc.cpp b/src/client/jetc.cpp
index cfe3db7..94d59ac 100644
--- a/src/client/jetc.cpp
+++ b/src/client/jetc.cpp
@@ -40,6 +40,14 @@ void move_right() {
 	cursor.move_right();
 }
 
+void move_down() {
+	cursor.move_down();
+}
+
+void move_up() {
+	cursor.move_up();
+}
+
 void delete_element() {
 	msg.encode1(OP_DELETE);
 	io.send(msg);
@@ -73,6 +81,12 @@ int main(int argc, char *argv[]) {
 				case 'h':
 					move_left();
 					break;
+				case 'j':
+					move_down();
+					break;
+				case 'k':
+					move_up();
+					break;
 				case 'l':
 					move_right();
 					break;