From cf60df75e6f3c170a11f6311502c643053a7b0b1 Mon Sep 17 00:00:00 2001
From: HF <pixelplanetdev@gmail.com>
Date: Sun, 15 Mar 2020 21:35:04 +0100
Subject: [PATCH] fixing client color check

---
 src/core/utils.js       | 7 +++++--
 src/ui/ChunkLoader2D.js | 2 +-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/core/utils.js b/src/core/utils.js
index b3de6bb..15df479 100644
--- a/src/core/utils.js
+++ b/src/core/utils.js
@@ -123,9 +123,12 @@ export function getPixelFromChunkOffset(
   return [x, y];
 }
 
-export function getCellInsideChunk(pixel: Cell): Cell {
+export function getCellInsideChunk(
+  canvasSize: number,
+  pixel: Cell,
+): Cell {
   // TODO assert is positive!
-  return pixel.map((x) => mod(x, TILE_SIZE));
+  return pixel.map((x) => mod(x + canvasSize / 2, TILE_SIZE));
 }
 
 export function screenToWorld(
diff --git a/src/ui/ChunkLoader2D.js b/src/ui/ChunkLoader2D.js
index 2654442..4eef3a0 100644
--- a/src/ui/ChunkLoader2D.js
+++ b/src/ui/ChunkLoader2D.js
@@ -72,7 +72,7 @@ class ChunkLoader {
       return 0;
     }
     return chunk.getColorIndex(
-      getCellInsideChunk([x, y]),
+      getCellInsideChunk(canvasSize, [x, y]),
     );
   }