fix: stay loose events (#434) (#435)

CHANGELOG.md

@@ -287,6 +287,7 @@ obj.sprite = "bag";
 - fix error where error screen was not showing when the error was thrown in a
   input event
 - fix error where fonts was cropped in the bottom
+- fix an error where `stay()` object loose their input events on scene change
 
 ### v3000.1.17
 

src/game/game.ts

@@ -40,6 +40,7 @@ export const initGame = () => {
             frameEnd: [];
             resize: [];
             sceneLeave: [string];
+            sceneEnter: [string];
         }>(),
 
         // object events

src/game/make.ts

@@ -96,6 +96,7 @@ export function make<T>(comps: CompList<T> = []): GameObj<T> {
 
         remove(obj: GameObj): void {
             const idx = this.children.indexOf(obj);
+
             if (idx !== -1) {
                 obj.parent = null;
                 this.children.splice(idx, 1);
@@ -598,8 +599,12 @@ export function make<T>(comps: CompList<T> = []): GameObj<T> {
             const ev = app[e]?.(...args);
             inputEvents.push(ev);
 
-            // TODO: what if the game object is destroy and re-added
             obj.onDestroy(() => ev.cancel());
+            obj.on("sceneEnter", () => {
+                ev.cancel();
+                inputEvents.splice(inputEvents.indexOf(ev), 1);
+                app[e]?.(...args);
+            });
             return ev;
         };
     }

src/game/scenes.ts

@@ -23,13 +23,17 @@ export function go(name: SceneName, ...args: unknown[]) {
         app.events.clear();
         game.events.clear();
         game.objEvents.clear();
+
         [...game.root.children].forEach((obj) => {
             if (
                 !obj.stay
                 || (obj.scenesToStay && !obj.scenesToStay.includes(name))
             ) {
                 game.root.remove(obj);
             }
+            else {
+                obj.trigger("sceneEnter", name);
+            }
         });
 
         game.root.clearEvents();