From 0cccf7aeccdc7a922ff92d8a149ab05db8d27ffe Mon Sep 17 00:00:00 2001
From: thepaperpilot <thepaperpilot@gmail.com>
Date: Wed, 11 Oct 2023 21:39:01 -0500
Subject: [PATCH 1/2] Add isRendered utility

---
 src/data/common.tsx | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/data/common.tsx b/src/data/common.tsx
index c81fa0d..e5b1fce 100644
--- a/src/data/common.tsx
+++ b/src/data/common.tsx
@@ -9,6 +9,7 @@ import { Resource, displayResource } from "features/resources/resource";
 import type { GenericTree, GenericTreeNode, TreeNode, TreeNodeOptions } from "features/trees/tree";
 import { createTreeNode } from "features/trees/tree";
 import type { GenericFormula } from "game/formulas/types";
+import { BaseLayer } from "game/layers";
 import type { Modifier } from "game/modifiers";
 import type { Persistent } from "game/persistence";
 import { DefaultValue, persistent } from "game/persistence";
@@ -485,3 +486,16 @@ export function createFormulaPreview(
         return <>{formatSmall(formula.evaluate())}</>;
     });
 }
+
+/**
+ * Utility function for getting a computed boolean for whether or not a given feature is currently rendered in the DOM.
+ * Note it will have a true value even if the feature is off screen.
+ * @param layer The layer the feature appears within
+ * @param id The ID of the feature
+ */
+export function isRendered(layer: BaseLayer, id: string): ComputedRef<boolean>;
+export function isRendered(layer: BaseLayer, feature: { id: string }): ComputedRef<boolean>;
+export function isRendered(layer: BaseLayer, idOrFeature: string | { id: string }) {
+    const id = typeof idOrFeature === "string" ? idOrFeature : idOrFeature.id;
+    return computed(() => id in layer.nodes.value);
+}

From a5204106aa09a15709828e234ad2cd49c8803fa7 Mon Sep 17 00:00:00 2001
From: thepaperpilot <thepaperpilot@gmail.com>
Date: Wed, 11 Oct 2023 21:44:02 -0500
Subject: [PATCH 2/2] Forgot to comment the other signature

---
 src/data/common.tsx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/data/common.tsx b/src/data/common.tsx
index e5b1fce..4be7004 100644
--- a/src/data/common.tsx
+++ b/src/data/common.tsx
@@ -494,6 +494,12 @@ export function createFormulaPreview(
  * @param id The ID of the feature
  */
 export function isRendered(layer: BaseLayer, id: string): ComputedRef<boolean>;
+/**
+ * Utility function for getting a computed boolean for whether or not a given feature is currently rendered in the DOM.
+ * Note it will have a true value even if the feature is off screen.
+ * @param layer The layer the feature appears within
+ * @param feature The feature that may be rendered
+ */
 export function isRendered(layer: BaseLayer, feature: { id: string }): ComputedRef<boolean>;
 export function isRendered(layer: BaseLayer, idOrFeature: string | { id: string }) {
     const id = typeof idOrFeature === "string" ? idOrFeature : idOrFeature.id;