add 'translucent' block property

res/content/base/blocks/water.json

@@ -6,5 +6,6 @@
     "sky-light-passing": false,
     "obstacle": false,
     "selectable": false,
-    "replaceable": true
+    "replaceable": true,
+    "translucent": true
 }

src/content/ContentLoader.cpp

@@ -333,6 +333,7 @@ void ContentLoader::loadBlock(
     root.at("inventory-size").get(def.inventorySize);
     root.at("tick-interval").get(def.tickInterval);
     root.at("overlay-texture").get(def.overlayTexture);
+    root.at("translucent").get(def.translucent);
 
     if (root.has("fields")) {
         def.dataStruct = std::make_unique<StructLayout>();

src/voxels/Block.cpp

@@ -140,6 +140,7 @@ void Block::cloneTo(Block& dst) {
     dst.inventorySize = inventorySize;
     dst.tickInterval = tickInterval;
     dst.overlayTexture = overlayTexture;
+    dst.translucent = translucent;
     if (particles) {
         dst.particles = std::make_unique<ParticlesPreset>(*particles);
     }

src/voxels/Block.hpp

@@ -172,6 +172,9 @@ public:
     /// @brief Turns off block item generation
     bool hidden = false;
 
+    /// @brief Block has semi-transparent texture
+    bool translucent = false;
+
     /// @brief Set of block physical hitboxes
     std::vector<AABB> hitboxes;