From 9f70e14a13793a4a62ac869526b255520eb751c4 Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Thu, 24 Oct 2024 14:03:05 +0300
Subject: [PATCH] update X sprites rendering randomization

---
 src/graphics/render/BlocksRenderer.cpp | 3 ++-
 src/graphics/render/BlocksRenderer.hpp | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/graphics/render/BlocksRenderer.cpp b/src/graphics/render/BlocksRenderer.cpp
index eb3a134a..651675c5 100644
--- a/src/graphics/render/BlocksRenderer.cpp
+++ b/src/graphics/render/BlocksRenderer.cpp
@@ -227,7 +227,8 @@ void BlocksRenderer::blockXSprite(
         pickSoftLight({x + 1, y + 1, z}, {1, 0, 0}, {0, 1, 0}),
         pickSoftLight({x, y + 1, z}, {1, 0, 0}, {0, 1, 0})
     };
-    int rand = ((x * z + y) ^ (z * y - x)) * (z + y);
+    randomizer.setSeed((x * 52321) ^ (z * 389) ^ y);
+    short rand = randomizer.rand32();
 
     float xs = ((float)(char)rand / 512) * spread;
     float zs = ((float)(char)(rand >> 8) / 512) * spread;
diff --git a/src/graphics/render/BlocksRenderer.hpp b/src/graphics/render/BlocksRenderer.hpp
index 60aa3a07..121190f0 100644
--- a/src/graphics/render/BlocksRenderer.hpp
+++ b/src/graphics/render/BlocksRenderer.hpp
@@ -11,6 +11,7 @@
 #include "voxels/Chunk.hpp"
 #include "voxels/VoxelsVolume.hpp"
 #include "graphics/core/MeshData.hpp"
+#include "maths/util.hpp"
 
 class Content;
 class Mesh;
@@ -41,6 +42,8 @@ class BlocksRenderer {
     const Block* const* blockDefsCache;
     const ContentGfxCache* const cache;
     const EngineSettings* settings;
+    
+    util::PseudoRandom randomizer;
 
     void vertex(const glm::vec3& coord, float u, float v, const glm::vec4& light);
     void index(int a, int b, int c, int d, int e, int f);