Blocks & Biomes

The complete block registry and biome model, extracted from world/block.rs and world/biomes.rs.

Block registry (97 block types)

Block IDs are u8 values in a BlockType enum; a BLOCK_REGISTRY maps numeric IDs to names and textures.

Terrain & surfaces (0–8)

ID	Block	ID	Block
0	Air	5	Gravel
1	Grass	6	Snow
2	Dirt	7	Cobblestone
3	Stone	8	Bedrock
4	Sand

Liquids & natural formations (9–24)

ID	Block	ID	Block
9	Water	17	Redstone Ore
10	Tree Trunk	18	Slate Rock
11	Tree Leaves	19	Slate Coal Ore
12	Coal Ore	20	Slate Diamond Ore
13	Iron Ore	21	Tuff
14	Gold Ore	22	Ember Rock
15	Diamond Ore	23	Glow Rock
16	Emerald Ore	24	Obsidian

Building blocks (25–44)

ID	Block	ID	Block
25	Stone Bricks	35	Packed Mud
26	Andesite	36	Rooted Soil
27	Bush	37	Coarse Soil
28	Tall Grass	38	Forest Floor
29	Flower	39	Bloom Floor
30	Dead Bush	40	Root Lattice
31	Cactus	41	Needle Wood
32	Clay	42	Warm Wood
33	Moss Mat	43	Wet Wood
34	Mud	44	Pale Wood

Canopies (45–51)

ID	Block	ID	Block
45	Needle Canopy	49	Bloom Canopy
46	Warm Canopy	50	Dark Wood
47	Wet Canopy	51	Dark Canopy
48	Pale Canopy

Items & tools (52–74)

ID	Block	ID	Block
52	Sapling	64	Wooden Pickaxe
53	Stick	65	Wooden Axe
54	Flint	66	Wooden Shovel
55	Flint Pickaxe	67	Wooden Hoe
56	Stone Pickaxe	68	Torch
57	Iron Pickaxe	69	Door
58	Diamond Pickaxe	70	Trapdoor
59	Netherite Pickaxe	71	Ladder
60	Planks	72	Fence
61	Iron Ingot	73	Fence Gate
62	Chest	74	Workbench Upgrade
63	NVCrafter

Flowers — AI output class 0 (75–83)

ID	Block	ID	Block
75	Rose	80	Tulip (Orange)
76	Dandelion	81	Cornflower
77	Tulip (Red)	82	Allium
78	Tulip (Pink)	83	Azalea Flower
79	Tulip (White)

Ferns & water plants — AI output class 1 (84–89)

ID	Block	ID	Block
84	Lily Pad	87	Seagrass
85	Fern	88	Tall Seagrass
86	Fern Plant	89	Kelp

Sticks, pebbles & decorations — AI output classes 2–3 (90–96)

ID	Block	ID	Block
90	Small Stick	94	Mossy Cobble
91	Pebble 1	95	Vine
92	Pebble 2	96	Moss Carpet
93	Pebble 3

Note: the AI output classes above describe the neural network's decision categories (flowers / ferns & water plants / sticks / pebbles). The ID ranges in the tables are for reference only.

Tool tiers

pub enum ToolTier { Hand = 1, Flint = 2, Stone = 3, Iron = 4, Diamond = 5, Netherite = 6 }

Tier	Power		Tier	Power
Hand	1		Iron	5
Flint	2		Diamond	7
Stone	3		Netherite	8

ToolStats carries tier, speed_multiplier, and max_durability.

Movement mediums

MovementMedium metadata lets the engine apply physics modifiers per medium:

MovementMedium::FOLIAGE {
    movement_speed_multiplier: 0.55,
    sprint_speed_multiplier:  0.65,
    fall_speed_multiplier:    0.35,
    sound_dampening:          0.6,
}

The camera tracks in_foliage_medium and footstep_volume at runtime for these hooks (audio consumption is a future feature).

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Biomes

Nine climate-driven biomes. Sea level is 46. All values are exact from world/biomes.rs.

Biome	Temp	Humidity	Tree density	Grass density	Surface block	Vegetation tint
Ocean	0.48	0.88	0.00	0.00	Sand	[0.58, 0.82, 0.74]
Coast	0.62	0.54	0.02	0.10	Sand	[0.78, 0.82, 0.48]
Plains	0.58	0.46	0.05	0.72	Grass	[0.72, 0.92, 0.54]
Forest	0.54	0.62	0.46	0.46	Grass	[0.50, 0.86, 0.42]
Dark Forest	0.50	0.74	0.74	0.18	Forest Floor	[0.38, 0.72, 0.34]
Swamp	0.66	0.90	0.28	0.26	Mud	—
Taiga	0.24	0.52	0.58	0.18	Grass	—
Desert	0.92	0.10	0.00	0.00	Sand	—
Mountains	0.28	0.34	0.12	0.10	Grass	—

Biome observations

• Desert is the hottest (0.92) and driest (0.10) biome — no trees, no grass.
• Swamp is the most humid (0.90) with a Mud surface.
• Taiga and Mountains are the coldest (0.24 / 0.28); taiga has the highest tree density after dark forest (0.58).
• Dark Forest has the highest tree density overall (0.74) on a Forest Floor surface.

Tree kinds

pub enum TreeKind { Oak, Birch, Pine, DarkOak, DeadTree }

Biomes select tree types from constants (e.g. PLAINS_TREES, FOREST_TREES, DARK_FOREST_TREES, NO_TREES).

Generation channels

Terrain combines multiple OpenSimplex2 channels, each with a dedicated seed:

Channel	Drives
Continent shape	Biome placement
Temperature	Climate
Humidity	Climate
Erosion	Relief
Peaks / relief	Mountain shapes
Height / detail	Surface elevation
Warp	Surface variation
Caves	Cave carving
Ores	Ore placement
Water	Water-aware column sampling

The generator exposes climate data to the renderer: ambient color, fog color, fog density, scene grade, vegetation tint, warmth, moisture, and lushness.