Add previously missing docs where appropriate

1 files changed, 6 insertions, 0 deletions

diff --git a/src/tool/wall_tool.rs b/src/tool/wall_tool.rs
index b958799..123171c 100644
--- a/src/tool/wall_tool.rs
+++ b/src/tool/wall_tool.rs
@@ -1,3 +1,6 @@
+//! Tool to create walls. For information about walls, see also
+//! [the wall module](crate::map::wall).
+
 use super::Tool;
 use crate::map::Map;
 use crate::math::{LineSegment, Vec2};
@@ -5,11 +8,14 @@ use crate::transform::Transform;
 use raylib::core::drawing::{RaylibDraw, RaylibDrawHandle};
 use raylib::ffi::{Color, Vector2};
 
+/// The wall tool to create solid barriers a player usually cannot cross.
 pub struct WallTool {
     unfinished_wall: Option<LineSegment<f64>>,
 }
 
 impl WallTool {
+    /// Create a new wall tool. There should only be one wall tool per program instance, which should
+    /// be created inside of the editor.
     pub fn new() -> Self {
         Self {
             unfinished_wall: None,