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, 2 insertions, 1 deletions

diff --git a/src/tool/deletion_tool.rs b/src/tool/deletion_tool.rs
index afd916a..da2090b 100644
--- a/src/tool/deletion_tool.rs
+++ b/src/tool/deletion_tool.rs
@@ -9,7 +9,7 @@
 use super::Tool;
 use crate::colours::DEFAULT_COLOURS;
 use crate::map::Map;
-use crate::math::{Rect, Surface, Vec2};
+use crate::math::{ExactSurface, Rect, Vec2};
 use crate::transform::Transform;
 use raylib::core::drawing::{RaylibDraw, RaylibDrawHandle};
 
@@ -21,6 +21,7 @@ pub struct DeletionTool {
 impl DeletionTool {
     /// Create a new deletion tool, there should only be one deletion tool and it should be created
     /// by the editor.
+    #[allow(clippy::new_without_default)]
     pub fn new() -> Self {
         Self {
             deletion_rect: None,