Add overrideValue

In preparation for #633
pmndrs · Jan 4, 2025 · 769b961 · 769b961
1 parent bcb9cb9
commit 769b961
Showing 1 changed file with 27 additions and 1 deletion.
diff --git a/src/core/io/Resource.ts b/src/core/io/Resource.ts
@@ -34,6 +34,12 @@ export abstract class Resource<T = unknown> extends EventDispatcher<BaseEventMap
 
 	private _value: T | null;
 
+	/**
+	 * @see {@link overrideValue}
+	 */
+
+	private _overrideValue: T | null;
+
 	/**
 	 * Constructs a new resource wrapper.
 	 *
@@ -46,6 +52,7 @@ export abstract class Resource<T = unknown> extends EventDispatcher<BaseEventMap
 
 		this.id = Resource.idManager.getNextId();
 		this._value = value;
+		this._overrideValue = null;
 
 	}
 
@@ -55,7 +62,7 @@ export abstract class Resource<T = unknown> extends EventDispatcher<BaseEventMap
 
 	get value(): T | null {
 
-		return this._value;
+		return this._overrideValue ?? this._value;
 
 	}
 
@@ -66,4 +73,23 @@ export abstract class Resource<T = unknown> extends EventDispatcher<BaseEventMap
 
 	}
 
+	/**
+	 * An additional value that overrides the main {@link value}.
+	 *
+	 * @internal
+	 */
+
+	get overrideValue(): T | null {
+
+		return this._overrideValue;
+
+	}
+
+	set overrideValue(value: T | null) {
+
+		this._overrideValue = value;
+		this.dispatchEvent({ type: Resource.EVENT_CHANGE });
+
+	}
+
 }