Simple complete conflict avoidance.

examples/solve_belt.rs

@@ -1,3 +1,5 @@
+use std::io;
+
 use clap::{Parser, ValueEnum};
 use factorio_blueprint::belt_finding::{conflict_avoidance::ConflictAvoidance, problems, Problem};
 
@@ -5,6 +7,7 @@ use factorio_blueprint::belt_finding::{conflict_avoidance::ConflictAvoidance, pr
 enum Mode {
     Solve,
     ConflictAvoidance,
+    ConflictStep,
 }
 
 #[derive(ValueEnum, Clone)]
@@ -51,5 +54,17 @@ fn main() {
                 println!("{}", c)
             }
         }
+        Mode::ConflictStep => {
+            println!("{}", p);
+            p.find_path();
+            println!("{}", p);
+            let mut c = ConflictAvoidance::new(p);
+            println!("{}", c);
+            while c.remove_conflict() {
+                println!("{}", c);
+                let mut s = String::new();
+                let _ = io::stdin().read_line(&mut s);
+            }
+        }
     }
 }