One more backported bugfix.

thebracket · thebracket · commit 0bc58f00eee6 · 2020-04-21T12:14:33.000-05:00
diff --git a/chapter-73-systems/src/player.rs b/chapter-73-systems/src/player.rs
@@ -167,7 +167,7 @@ pub fn try_move_player(delta_x: i32, delta_y: i32, ecs: &mut World) -> RunState
                 let target = combat_stats.get(potential_target);
                 if let Some(_target) = target {
                     wants_to_melee.insert(entity, WantsToMelee{ target: potential_target }).expect("Add target failed");
-                    result = RunState::Ticking;
+                    return Some(RunState::Ticking);
                 }
             }
             let door = doors.get_mut(potential_target);

Original file line number	Diff line number	Diff line change
`@@ -167,7 +167,7 @@ pub fn try_move_player(delta_x: i32, delta_y: i32, ecs: &mut World) -> RunState`
`167`	`167`	`let target = combat_stats.get(potential_target);`
`168`	`168`	`if let Some(_target) = target {`
`169`	`169`	`wants_to_melee.insert(entity, WantsToMelee{ target: potential_target }).expect("Add target failed");`
`170`		`- result = RunState::Ticking;`
	`170`	`+ return Some(RunState::Ticking);`
`171`	`171`	`}`
`172`	`172`	`}`
`173`	`173`	`let door = doors.get_mut(potential_target);`