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, 1 deletions

diff --git a/src/map/rect_room.rs b/src/map/rect_room.rs
index 6ed3ed6..ae10327 100644
--- a/src/map/rect_room.rs
+++ b/src/map/rect_room.rs
@@ -49,7 +49,7 @@ impl Mappable for RectRoom {
     }
 
     fn bounding_rect(&self) -> Rect<f64> {
-        self.data.clone()
+        self.data
     }
 }