From cc2ae41bb561f2d60084e0b17abafd59899839ab Mon Sep 17 00:00:00 2001
From: Tangent Wantwight <tangent128@gmail.com>
Date: Fri, 12 Jan 2024 23:45:19 -0500
Subject: [PATCH] refactor

---
 island.ts | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/island.ts b/island.ts
index 2265905..d4964eb 100644
--- a/island.ts
+++ b/island.ts
@@ -157,13 +157,19 @@ export function IslandApplet() {
     }
   }
 
+  function dropWithin(tiles: number[]) {
+    if (tiles.length > 0) {
+      drop(tiles[islands.rng() % tiles.length]);
+    }
+  }
+
   function tick() {
     const islandTiles = islands.floodSearch(basePos, (tile) => tile > 0);
-    drop(islandTiles[islands.rng() % islandTiles.length]);
-    drop(islandTiles[islands.rng() % islandTiles.length]);
+    dropWithin(islandTiles);
+    dropWithin(islandTiles);
 
     const mountainTiles = islands.floodSearch(basePos - 8, (tile) => tile > 4);
-    drop(mountainTiles[islands.rng() % mountainTiles.length]);
+    dropWithin(mountainTiles);
 
     // const erodePos = islandTiles[islands.rng() % islandTiles.length];
     // islands.data[erodePos] = Math.max(islands.data[erodePos] - 1, 0);