1 files changed, 41 insertions, 0 deletions
diff --git a/src/game/client/world/chunk_quad.hh b/src/game/client/world/chunk_quad.hh
new file mode 100644
index 0000000..01ed5f2
--- /dev/null
+++ b/src/game/client/world/chunk_quad.hh
@@ -0,0 +1,41 @@
+#pragma once
+
+#include "core/math/constexpr.hh"
+
+#include "shared/world/voxel_registry.hh"
+
+namespace world
+{
+// [0] XXXXXXXXYYYYYYYYZZZZZZZZWWWWHHHH
+// [1] FFFFTTTTTTTTTTTAAAAA------------
+using ChunkQuad = std::array<std::uint32_t, 2>;
+} // namespace world
+
+namespace world
+{
+constexpr inline static ChunkQuad make_chunk_quad(const glm::fvec3& position, const glm::fvec2& size, VoxelFace face, std::size_t texture,
+    std::size_t frames)
+{
+    ChunkQuad result = {};
+    result[0] = 0x00000000;
+    result[1] = 0x00000000;
+
+    // [0] XXXXXXXXYYYYYYYYZZZZZZZZ--------
+    result[0] |= (0x000000FFU & static_cast<std::uint32_t>(position.x * 16.0f)) << 24U;
+    result[0] |= (0x000000FFU & static_cast<std::uint32_t>(position.y * 16.0f)) << 16U;
+    result[0] |= (0x000000FFU & static_cast<std::uint32_t>(position.z * 16.0f)) << 8U;
+
+    // [0] ------------------------WWWWHHHH
+    result[0] |= (0x0000000FU & static_cast<std::uint32_t>(size.x * 16.0f - 1.0f)) << 4U;
+    result[0] |= (0x0000000FU & static_cast<std::uint32_t>(size.y * 16.0f - 1.0f));
+
+    // [1] FFFF----------------------------
+    result[1] |= (0x0000000FU & static_cast<std::uint32_t>(face)) << 28U;
+
+    // [1] ----TTTTTTTTTTTAAAAA------------
+    result[1] |= (0x000007FFU & static_cast<std::uint32_t>(texture)) << 17U;
+    result[1] |= (0x0000001FU & static_cast<std::uint32_t>(frames)) << 12U;
+
+    return result;
+}
+} // namespace world