From a296424105dbee466fcb95e473966d10c1fa68cb Mon Sep 17 00:00:00 2001
From: cha0s <git@cha0s.io>
Date: Wed, 13 Apr 2022 15:31:02 -0500
Subject: [PATCH] fix: math

---
 packages/topdown/src/renderable/tiles.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/topdown/src/renderable/tiles.js b/packages/topdown/src/renderable/tiles.js
index b0e8655..e99e926 100644
--- a/packages/topdown/src/renderable/tiles.js
+++ b/packages/topdown/src/renderable/tiles.js
@@ -114,8 +114,8 @@ export default class TilesView extends Container {
       return;
     }
     const [sw, sh] = [
-      cx + cw > fw ? (cx + cw) - fw : cw,
-      cy + ch > fh ? (cy + ch) - fh : ch,
+      cx + cw > fw ? cx - ((cx + cw) - fw) : cw,
+      cy + ch > fh ? cy - ((cy + ch) - fh) : ch,
     ];
     const [tw, th] = this.tiles.tileSize;
     const slice = this.tiles.slice([cx - 1, cy - 1, sw + 2, sh + 2]);
@@ -125,7 +125,7 @@ export default class TilesView extends Container {
       container.mask = mask;
       mask.anchor = [0, 0];
     }
-    const rw = (cw + 2) * tw;
+    const rw = (sw + 2) * tw;
     let [x, y] = [0, 0];
     for (let i = 0; i < slice.length; ++i) {
       const index = slice[i];