voxel_engine 0.2.0-dev

The pure-Dart half of the voxel kit: chunk grid, meshing, streaming, physics, world generation, block and item content, signals and a TCP net layer.

Changelog

0.2.0-dev

• ChunkMesher merges cube and liquid faces greedily: coplanar neighbours of the same block, light, AO corners and lowered top become one quad, across a direction only where the AO does not change along it, so the interpolated colour is what the unit faces had. The kit example's radius-6 window meshes 114,193 faces where it meshed 185,130 (solid −31%, liquid −98.5%). Breaking: the per-block colour variation is no longer in MeshSurface.colors (it made every face different); a renderer computes it from the cell with the new ChunkMesher.voxelTint, as voxel_scene's terrain shader does. The glow surface, meant for an unlit material, keeps it baked and unmerged.

0.1.2-dev

• Formatted by dart format at the 120 columns the code is written at (formatter: page_width: 120 in analysis_options.yaml); pana took 10 pub points for formatting.
• Pathfinder.find keys its cells by an int (the offset from the start, packed) and keeps its nodes in lists reused from one search to the next, allocating nothing per cell it opens; the paths are the same, the search about 1.6 times faster. A PathCosts callback that searches again throws a StateError. With 40 creatures (mobs:6, M2 Pro) a step's p99 goes from 8.7 ms to 4.7.
• ChunkStreamer.getBlockXYZ and lightAt find a chunk by shifts and an int key (ChunkStreamer.keyOf) instead of a double division and a record key: 41 → 14.5 ns and 66 → 32 ns a call. ChunkStreamer.chunkAtXZ returns a column's volume the same way. ChunkSize gains shiftX/shiftZ and maskX/maskZ.
• ChunkStreamer.chunks is read-only (an UnmodifiableMapView): the streamer keeps it in step with the int-keyed copy its queries read.

0.1.1-dev

• No code change. The README says why the web is not a target: streaming spawns isolates and net.dart is TCP sockets, through dart:isolate and dart:io.

0.1.0-dev

First version. It is the five pure-Dart packages that came before it — voxel_core, voxel_worldgen, voxel_content, voxel_signals and voxel_net — merged into one package with a library per subject. No code changed in the move; package:voxel_core/voxel_core.dart became package:voxel_engine/core.dart, and so on for the other four.

• core.dart: VoxelBlockTable, ChunkGenerator, ChunkWorkerPool, ChunkStreamer, ChunkMesher with light and ambient occlusion, VoxelBody, VoxelRaycast, Reach, LiquidFlow, Pathfinder, VoxelModel, EditDeltaCodec.
• worldgen.dart: WorldGenSpec compiling to a ChunkGenerator — biomes by climate, terrain recipes, caves, ores, trees, plants, structures, and FastNoiseLite.
• content.dart: BlockRegistry, ItemRegistry, MiningRules, Inventory, RecipeBook, LootTable, StatusEffects.
• signals.dart: SignalNetwork and SignalRules for wires, levers, lamps, doors and pistons; RailGraph for rails that lay themselves.
• net.dart: NetHost, NetConnection and connectToHost over TCP.
• voxel_engine.dart exports all five.
• A sixth example, voxel_engine_example.dart, runs the subjects together.
• Dartdoc describes the behaviour in its own words instead of by reference to another game (ItemType.tier, VoxelModel, VoxelBody.wading).