Add output signals

factorio-blueprint/src/abstraction.rs

@@ -1,4 +1,5 @@
 use factorio_core::{
+    aabb::AABB,
     beltoptions::Beltspeed,
     direction,
     pathfield::PathField,
@@ -459,6 +460,14 @@ impl Blueprint {
             e.transform(transform);
         }
     }
+
+    pub fn bounding_box(&self) -> AABB {
+        self.entities
+            .iter()
+            .map(|(_, e)| AABB::new(e.position, e.position))
+            .reduce(|a, b| a.combine(b))
+            .unwrap()
+    }
 }
 
 impl Default for Blueprint {