reverse instant recipe output when input is reversed

1 files changed, 7 insertions, 6 deletions

diff --git a/server/src/interaction.rs b/server/src/interaction.rs
index 615d2aab..e3dccfba 100644
--- a/server/src/interaction.rs
+++ b/server/src/interaction.rs
@@ -192,12 +192,13 @@ pub fn interact(
                 } => {
                     let on_tile = this.as_ref().map(|i| i.kind);
                     let in_hand = other.as_ref().map(|i| i.kind);
-                    let ok = (inputs[0] == on_tile && inputs[1] == in_hand)
-                        || (inputs[1] == on_tile && inputs[0] == in_hand);
-                    if ok {
-                        info!("instant recipe {ri:?}");
-                        *other = outputs[0].map(|kind| Item { kind, active: None });
-                        *this = outputs[1].map(|kind| Item { kind, active: None });
+                    let ok = inputs[0] == on_tile && inputs[1] == in_hand;
+                    let ok_rev = inputs[1] == on_tile && inputs[0] == in_hand;
+                    if ok || ok_rev {
+                        info!("instant recipe {ri:?} reversed={ok_rev}");
+                        let ok_rev = ok_rev as usize;
+                        *other = outputs[1 - ok_rev].map(|kind| Item { kind, active: None });
+                        *this = outputs[ok_rev].map(|kind| Item { kind, active: None });
                         return Some(InteractEffect::Produce);
                     }
                 }