refactor(web): improve state management

1 files changed, 8 insertions, 0 deletions

diff --git a/web/src/components/grid/excursion.ts b/web/src/components/grid/excursion.ts
new file mode 100644
index 0000000..7752df1
--- /dev/null
+++ b/web/src/components/grid/excursion.ts
@@ -0,0 +1,8 @@
+export default function excursion(
+  ctx: CanvasRenderingContext2D,
+  f: () => void,
+) {
+  ctx.save();
+  f();
+  ctx.restore();
+}