Change to polygongraph instead of polygon in roomtool

The polygon room tool used a convoluted process for determining what the
user actually wants to draw. I have changed to the polygon graph
instead, which makes the checks easier and restricts the user a bit
less. In the process however I found a serious problem with my handling
float, so everything needed to change to margin compares (which I of
course should have done in the beginning. Guys, take the warning
seriously and don't ignore it for ten years like I did. It will come
back to haunt you.. apparently) instead of direct equality.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/tool/wall_tool.rs b/src/tool/wall_tool.rs
index 123171c..e79d815 100644
--- a/src/tool/wall_tool.rs
+++ b/src/tool/wall_tool.rs
@@ -16,6 +16,7 @@ pub struct WallTool {
 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.
+    #[allow(clippy::new_without_default)]
     pub fn new() -> Self {
         Self {
             unfinished_wall: None,