From 8b6d0ba6982be23fd77c6dc2a7537304850f0267 Mon Sep 17 00:00:00 2001
From: HF <pixelplanetdev@gmail.com>
Date: Fri, 31 Jan 2020 00:59:23 +0100
Subject: [PATCH] change pixel bitmask from 0x1F to 0x3F to allow 64 color
 palette

---
 src/core/Palette.js     | 4 ++--
 src/core/Tile.js        | 2 +-
 src/core/tilesBackup.js | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/core/Palette.js b/src/core/Palette.js
index 868681f..d1b955f 100644
--- a/src/core/Palette.js
+++ b/src/core/Palette.js
@@ -83,7 +83,7 @@ class Palette {
 
     let pos = 0;
     for (let i = 0; i < length; i++) {
-      value = (buffer[i] & 0x1F);
+      value = (buffer[i] & 0x3F);
       colors[pos++] = this.abgr[value];
     }
     return colors;
@@ -105,7 +105,7 @@ class Palette {
     for (let i = 0; i < length; i++) {
       value = buffer[i];
 
-      color = (value & 0x1F) * 3;
+      color = (value & 0x3F) * 3;
       colors[c++] = this.rgb[color++];
       colors[c++] = this.rgb[color++];
       colors[c++] = this.rgb[color];
diff --git a/src/core/Tile.js b/src/core/Tile.js
index 7e00228..e19656d 100644
--- a/src/core/Tile.js
+++ b/src/core/Tile.js
@@ -87,7 +87,7 @@ function addIndexedSubtiletoTile(
     let channelOffset = (chunkOffset + row * TILE_SIZE * subtilesInTile) * 3;
     const max = channelOffset + TILE_SIZE * 3;
     while (channelOffset < max) {
-      clr = (subtile[pos++] & 0x1F) * 3;
+      clr = (subtile[pos++] & 0x3F) * 3;
       buffer[channelOffset++] = palette.rgb[clr++];
       buffer[channelOffset++] = palette.rgb[clr++];
       buffer[channelOffset++] = palette.rgb[clr];
diff --git a/src/core/tilesBackup.js b/src/core/tilesBackup.js
index e441ff4..d8c52b7 100644
--- a/src/core/tilesBackup.js
+++ b/src/core/tilesBackup.js
@@ -120,7 +120,7 @@ export async function incrementialBackupRedis(
                 if (!tileBuffer) {
                   tileBuffer = new Uint32Array(TILE_SIZE * TILE_SIZE);
                 }
-                const color = palette.abgr[curChunk[pxl] & 0x1F];
+                const color = palette.abgr[curChunk[pxl] & 0x3F];
                 tileBuffer[pxl] = color;
               }
               pxl += 1;