Modding:Block Json Properties

Overview

This table was once complete, but it is now missing some new properties. In the code, these come from the fields listed with the "[JsonProperty]" attribute in BlockType.cs, plus the fields from the parent classes CollectibleType.cs and RegistryObjectType.cs. The json parser is case insensitive, which is how the property names can have different capitalization in the code and in the table below.

Definitions:

Key - The name of the property, which should be used as it appears in the column.

Value - A component of a property.

Array - A list of objects or values that can be referenced in code.

String - A sequence of characters that can be used as an identifier in code. Essentially a word that can be referenced and assigned to something. Generally does not use numbers.

Boolean - A true or false value, essentially "on" or "off".

Int - An integer, or whole number. Cannot use decimal values.

Float - A decimal, specifically one that does not exceed more than 1 significant digit

Object - This is a bit more complex, but essentially objects are the items, blocks and entities that can be interacted with. In most cases, when an "object" type appears it means you must use a specific item variant code, which follows the "itemcode-variant_1-variant_2-variant_n" style of naming.

Property	Type	Default	Usage	Reference
json
Core (no byType available)
code	string	required	A unique identifier for the block.	Any Block
	A domain prefix will be added dynamically depending on the location of the file. Every mod and VintageStory itself have a unique prefix. For example the code stone turns into game:stone. The code identifier has to be unique inside its domain. In theory there could be equal identifiers with different domain prefixes. Find out more about Domains.
enabled	boolean	true	If the block will be loaded or not. Can be used to temporarily remove the block.	-
variantgroups	array of objects	-	Allows you define multiple variants of the same block.	armor, ore-graded, plank,
(any) bytype	key: string; value: object	-	Allows different property values to be specified based on the variant code.
allowedVariants	array of strings	-	Used to trim unnecessary blocks generated by combined variants.	crystalizedore-graded, ore-graded, ore-ungraded
skipVariants	array of strings	-	Similar to allowedVariants, but instead skips the creation of listed variants rather than assigning which are allowed.	armor
Specific
class	string	"block"	The block class can add special functionalities for the block.	anvil, firepit, quern, skep
	It can be used to open guis or adding other extra functionality to the block. A complete tutorial of how to add your own class to the game can be found here. An ongoing list of block classes used in JSONS can also be found here.
entityclass	string	-	The block entity class is able to tick and to store extra data. Allows for much more advanced properties.	anvil, firepit, quern, skep
behaviors	array of object	-	A behavior adds custom abilities such as falling block.	gravel, lantern, log, rock, torch
	Behaviors are useful traits as many can be assigned to a single block. If you want to create your own custom behavior you can read Adding Block Behavior. To see all of the current behaviors in the game see All Block Behaviors and All Collectible Behaviors.
entityBehaviors	array of object	-	An entity behavior adds custom abilities to an entity assigned to a block, such as the mechanical power properties of the windmill.	angledgears, axle, brake, clutch, helvehammerbase, toggle, transmission, windmillrotor
	Block entity behaviors are expanded capabilities that regular behaviors cannot accomplish. At the moment they are only used for Mechanical Power blocks, but if you're looking to make your own you can look through the existing files at the Vintage Story Github here . To see all of the current block entity behaviors in the game see All Block Entity Behaviors.
	A chest for example uses the BlockEntity to store the inventory. A tutorial of creating your own entityclass can be found here. You can also find every existing block entity and their relevant github links here.
blockmaterial	string	-	A behavior adds custom abilities such as falling block.	gravel
	Materials are hardcoded and currently only used to determine mining speed with a specific tool. The following materials are available: Brick, Ceramic, Cloth, Fire, Glass, Gravel, Ice, Lava, Leaves, Liquid, Mantle, Metal, Other, Plant, Sand, Snow, Soil, Stone, Wood
matterstate	array of object	"block"	Determines whether the block is in a solid, a liquid, a gas or a plasma state.	water
	Used for special collision behavior and rendering. Currently used for lava and water, which are liquids (All other blocks default to solid). Gas and plasma are not yet implemented.
resistance	decimal number	6	How long it takes to break this block in seconds (with a mining speed of 1).	leaves, meteorite, sand
	Resistance values range from very low with leaves (0.5) to the average of stone (6) to the very high resistance value of meteoric iron deposits (60).
requiredminingtier	integer	0	Minimum required mining tier to get the drop out of the block.	ore-graded, rock
	The following are examples of the mining tiers required for certian ores in Vintage Story: Tier Ores 1 galena and rocksalt_sylvite 2 lignite, cassiterite, sphalerite, rocksalt, sulfur and nativecopper 3 bituminouscoal, quartz_nativegold, quartz_nativesilver, lapislazuli, bismuthinite, quartz, magnetite and limonite 4 diamond and emerald 5 chromite, platinum and ilmenite
climbable	boolean	false	If true, walking against this block will make the player climb (used for ladders).	ladder
rainpermeable	boolean	false	If rain can fall through this block.	torch, torchholder
snowcoverage	boolean	-	Whether snow may rest on top of this block.	leavesbranchy
	All non-solid blocks can't be covered by snow unless it's defined different: Leaves (also branchy): true, Water with particles, Lakeice: false
collisionbox	object	box (0,0,0 -> 1,1,1)	Defines a box with which the player collides with.	carcass, door, fence, all slabs
	A half slab for example, has either a box going from 0,0,0 to 1,0.5,1 or going from 0,0.5,0 to 1,1,1, depending on whether it is a slab is down or up: collisionboxByType: { "*-down": { x1: 0, y1: 0, z1: 0, x2: 1, y2: 0.5, z2: 1 }, "*-up": { x1: 0, y1: 0.5, z1: 0, x2: 1, y2: 1, z2: 1 } }, Collision and selection boxes are most likely equal. Also, setting the entire property to null will eliminate the collision box entirely.
collisionboxes	array of object	-	Defines multiple boxes with which the player collides with.	all stairs, crate
	A crate for example requires multiple collision boxes: collisionboxesByType: { "*-opened": [ { x1: 0, y1: 0, z1: 0, x2: 1, y2: 0.0625, z2: 1 }, { x1: 0, y1: 0, z1: 0, x2: 1, y2: 1, z2: 0.0625 }, { x1: 0, y1: 0, z1: 0, x2: 1, y2: 1, z2: 0.0625, rotateY: 90 }, { x1: 0, y1: 0, z1: 0, x2: 1, y2: 1, z2: 0.0625, rotateY: 180 }, { x1: 0, y1: 0, z1: 0, x2: 1, y2: 1, z2: 0.0625, rotateY: 270 }, ] },
collisionSelectionBoxes	array of object	-	Simultaneously defines multiple boxes with which the player collides with and can select.	all stairs
	A crate for example requires multiple collision boxes: collisionSelectionBoxesByType: { "*-down-*": [ { x1: 0, y1: 0.5, z1: 0, x2: 1, y2: 1, z2: 1 }, { x1: 0, y1: 0, z1: 0.5, x2: 1, y2: 0.5, z2: 1, rotateYByType: { "*-north": 180, "*-east": 90, "*-south": 0, "*-west": 270, } } ], "*-up-*": [ { x1: 0, y1: 0, z1: 0, x2: 1, y2: 0.5, z2: 1 }, { x1: 0, y1: 0.5, z1: 0.5, x2: 1, y2: 1, z2: 1, rotateYByType: { "*-north": 180, "*-east": 90, "*-south": 0, "*-west": 270, } } ], },
selectionbox	object	box (0,0,0 -> 1,1,1)	Defines a box which the player's mouse pointer collides with for selection.	carcass, door, fence, all slabs
	A half slab for example, has either a box going from 0,0,0 to 1,0.5,1 or going from 0,0.5,0 to 1,1,1, depending on whether it is a slab is down or up: selectionboxByType: { "*-down": { x1: 0, y1: 0, z1: 0, x2: 1, y2: 0.5, z2: 1 }, "*-up": { x1: 0, y1: 0.5, z1: 0, x2: 1, y2: 1, z2: 1 } }, Collision and selection boxes are most likely equal.
selectionboxes	array of object	-	Defines multiple boxes which the player's mouse pointer collides with for selection.	carcass, door, fence, all slabs
	A crate for example requires multiple selection boxes: selectionboxesByType: { "*-opened": [ { x1: 0, y1: 0, z1: 0, x2: 1, y2: 0.0625, z2: 1 }, { x1: 0, y1: 0, z1: 0, x2: 1, y2: 1, z2: 0.0625 }, { x1: 0, y1: 0, z1: 0, x2: 1, y2: 1, z2: 0.0625, rotateY: 90 }, { x1: 0, y1: 0, z1: 0, x2: 1, y2: 1, z2: 0.0625, rotateY: 180 }, { x1: 0, y1: 0, z1: 0, x2: 1, y2: 1, z2: 0.0625, rotateY: 270 }, ] },
replaceable	integer	0	A value usually between 0-9999 that indicates which blocks may be replaced with others.	bigberrybush, tallgrass, water
	value effect (blocks) 0 ordinary blocks (stone for example) 5000 Everything equal or above will be washed away by water (such as Fruit). 6000 Everything equal or above wwill replaced when the player tries to place a block (such as Tallgrass). 9000 Lava 9500 Water 9999 Air
fertility	integer	0	Which plants can grow on top of this block.	clay, gravel, sand, soil
	value effect 0 (rock) nothing can grow. 10 (sand) some tallgrass and small trees can be grow on it. 100 (soil) all grass and trees can grow on it.
lightabsorption	0 ... 32	0	For light blocking blocks. Any value above 32 will completely block all light.	full-plain (glass), water
walkspeedmultiplier	decimal number	1.0	Percentage walk-speed when standing on or inside this block.	path, spiderweb, stonepath
	blocks value Spiderweb 0.25 Stonepath 1.15
dragmultiplier	decimal number	1.0	Drag multiplier applied to entities standing on it (slipperiness factor).	Glacierice, Lakeice
	blocks value Glacierice, Lakeice 0.02
drops	array of object	-	The items that should drop from breaking this block.	crops, skep
	Drop itself If this property does not exist the block will drop itself. No drop A firepit for example doesn't drop anything. You can do so if you specify an empty array: drops: [], Special drop You can also specify a special item/ block. Therefore you need to define an ItemStack, with the given properties: property default explanation type block Can either be block or item. code (required) - The complete code (can also include domain) of the item or block. lastdrop false If true and the quantity dropped is >=1 any subsequent drop in the list will be ignored. attributes - Tree Attributes that will be attached to the resulting itemstack. tool - If specified then given tool is required to break this block. quantity - (one) Determines the quantity of items which will be dropped. For example, the drop of a charcoalpile looks like this: drops: [ { type: "item", code: "charcoal" } ], Tallgrass will only drop something if it's mined by a knife: drops: [ { type: "item", code: "drygrass", tool: "knife" }, ], Chance drops Let's take a look at an example. This is the drop property of rock: drops: [ { type: "item", code: "stone-{rock}", quantity: { avg: 2.5, var: 0.5 } }, ] This will drop 2-3 blocks. avg: Stands for the default drop quantity. If var is 0 or not specified it will always drop the given average. var: How much the drop rate can vary. Meaning the drop rate can be avg - var at minimum and age + var at maximum. For more information see NatFloat page. Multiple Drops Of course you can also define multiple drops at once. Sapling can drop a sapling and a stick: drops: [ { type: "block", code: "sapling-{wood}", quantity: { avg: 0.02, var: 0 }, }, { type: "item", code: "stick", quantity: { avg: 0.02, var: 0 }, } ], Last Drop In order to add a special drop, which (if dropped) prevents all other drops, you can use the lastDrop property: dropsByType: { "ore-quartz-*": [ { type: "item", code: "clearquartz", quantity: { avg: 0.2, var: 0 }, lastDrop: true }, { type: "item", code: "ore-{ore}", quantity: { avg: 1.25, var: 0 } } ], "*": [ { type: "item", code: "ore-{ore}", quantity: { avg: 1.25, var: 0 } } ], } Quartz ore will drop with a 20% chance clearquartz, if not it will drop the regular ore. If lastDrop wouldn't be true it could drop both at the same time.
particleproperties	array of object	-	Particles that should spawn in regular intervals from this block.	torch>
	The torch is a good example of how to use those particles ... particleProperties: [ { hsvaColor: [{ avg: 20, var: 20 }, { avg: 255, var: 50 }, { avg: 255, var: 50 }, { avg: 255, var: 0 }], gravityEffect: { avg: 0, var: 0 }, posOffset: [ { avg: 0, var: 0.1 }, { avg: 0, var: 0 }, { avg: 0, var: 0.1 }], velocity: [ { avg: 0, var: 0.025 }, { avg: 0.5, var: 0.1 }, { avg: 0, var: 0.025 }], quantity: { avg: 0.015 }, size: { avg: 0.5, var: 0 }, sizeEvolve: { transform: "quadratic", factor: -0.7 }, lifeLength: { avg: 1.5 }, glowLevel: 64 }, { hsvaColor: [{ avg: 0, var: 0 }, { avg: 0, var: 0 }, { avg: 40, var: 30 }, { avg: 220, var: 50 }], opacityEvolve: { transform: "quadratic", factor: -16 }, gravityEffect: { avg: 0, var: 0 }, posOffset: [ { avg: 0, var: 0.1 }, { avg: 0, var: 0 }, { avg: 0, var: 0.1 }], velocity: [ { avg: 0, var: 0.025 }, { avg: 0.15, var: 0.1 }, { avg: 0, var: 0.025 }], quantity: { avg: 0.05 }, size: { avg: 0.25, var: 0.05 }, sizeEvolve: { transform: "linear", factor: 0.5 }, particleModel: "Quad" } ], There is also a complete tutorial about particles, which should help you to find out what each property does.
liquidlevel	0 ... 7	0	Value between 0...7 for Liquids to determine the height of the liquid.	water
cropprops	object	-	Information about the block as a crop.	all crops
requiredNutrient	Nutrient (N, P, or K)	-	The primary nutrient this crop uses and consumes from farmland.	all crops
nutrientConsumption	number	-	The percentage value of the nutrient this plant will consume from farmland. This value should be whole, as in 50 = 50% consumption.	all crops
growthStages	number	-	The number of growth stages this plant will go through before it can be harvested.	all crops
totalGrowthDays	Number	-	The average number of days required for a plant to reach maturity. This value can include decimals, such as 4.5 days.	all crops
behaviors (crop)	string	-	Crops can have additional functionality with special crop behaviors, currently used only by pumpkins.	motherplant (pumpkin)
Pumpkin	number	-	A unique pumpkin behavior utilize only by the pumpkin motherplant block.	motherplant (pumpkin)
	The most advanced of crops! Pumpkins utilize a special crop behavior allowing the mother plant to generate vines that will eventually produce pumpkin "fruits": cropProps: { behaviors: [{name: "Pumpkin", properties: {vineGrowthStage: 3, vineGrowthQuantity: { dist: "invexp", avg: 2, var: 3 } }}], requiredNutrient: "P", nutrientConsumption: 30, growthStages: 8, totalGrowthDays: 3.5, }, We can see that the special behavior defines how many vines can be produced by one pumpkin motherplant.
inside	The player is inside the block.
sounds	key: string, value: string	-	The sounds played for this block during step, break, build and walk.	anvil, rock, water
walk	An entity walks over it.
inside	The player is inside the block.
break	Breaking the block.
place	Placing the block.
hit	While mining the block.
byTool	Allows different sounds to be made based off the tool that's being used.
	We'll use the "rock" block as an example: sounds: { walk: "walk/stone", byTool: { "Pickaxe": { hit: "block/rock-hit-pickaxe", break: "block/rock-break-pickaxe" } } },
ambient	Played from time to time if the player is close to it.
ambientBlockCount	The amount of blocks required to be in the vicinity of the player to play the sound at full volume.
	Here's a few examples of how different blocks have their own sound properties: Anvil: sounds: { "place": "block/anvil", "break": "block/anvil" } Rails: sounds: { place": "block/planks", "walk": "walk/wood" } Water: sounds: { place: "block/water", inside: "walk/water", ambient: "environment/creek" },
liquidCode	string	-	An identifier for other liquids to utilize during collisions.	lava, water
Common
creativeinventory	key: string, value: string[]	-	In which creative inventory tabs the block should be visible in.	all blocks
	There are several tabs to you can add your stuff. Note that general should always be included, since it should contain everything. general terrain flora construction decorative items Rock adds all of it's variantions to general, terrain and construction: creativeinventory: { "general": ["*"], "terrain": ["*"], "construction": ["*"] }, * reprents the variants which will be added. You can specify multiple and separate them with a comma. It follows the same way as the byType property. A Torch on the other hand only adds the variation up: creativeinventory: { "general": ["*-up"], "decorative": ["*-up"] },
CreativeInventoryStacks	-	-	If you want to add itemstacks with custom attributes to the creative inventory, add them to this list.	-
notCreateveInventoryStacks	-	-	Prevents the variant from being included in the creative inventory.	tapestry
maxstacksize	integer	64	Determines the maximum amount you can stack the block in one slot.	-
attackpower	decimal number	0.5	The damage the deals when hitting an entity.	-
attackrange	decimal number	1.5	The maximum distance you can hit an entity.	-
materialdensity	integer	9999	Determines on whether an object floats on liquids or not.	hay, planks, lava, water
	Water has a density of 1000, meaning everything below or equal will float on water. The same goes for lava which has a density of 5000. Vintage story uses real world densities for each material (where 1000 = 1 g/cm^3). To give an idea of the current range of densities, gold has a density of 19300, iron's is 7870, and a feather is 20.
liquidselectable	boolean	false	If the block can select a liquid while holding it in hand.	bucket
	Used for buckets in order to fill it with water and to place waterlily on top of water.
miningSpeed	key: string, value: decimal number	-	The mining speed for each material. Not to be confused with resistance, which determines how long it takes to mine the block.	-
miningTier	integer	0	Determines which blocks it can break. If the required miningtier is above the defined one there will be no drop from it.	-
combustibleprops	object	-	Information about the blocks burnable states.	log, wooden objects
burntemperature	integer	-	The temperature at which it burns in degrees Celsius.	log, wooden objects
burnduration	decimal number	-	For how long it burns in seconds.	log, wooden objects
heatresistance	integer	500	How many degrees celsius it can resists before it ignites (not implemented yet).	log, wooden objects
meltingpoint	integer	-	How many degrees celsius it takes to smelt/transform this into another. Only used when put in a firepit and SmeltedStack is set.	ingotmold, toolmold
meltingduration	decimal number	-	For how many seconds the temperature has to be above the melting point until the item is smelted.	ingotmold, toolmold
smokelevel	decimal number	1	How much smoke this item produces when being used as fuel.	-
smeltedratio	integer	1	How many ores are required to produce one output stack.	-
smeltedstack	object	-	If set, the block/item is smeltable in a furnace and this is the resulting itemstack once the MeltingPoint has been reached for the supplied duration.	ingotmold, toolmold
requirescontainer	boolean	true	If set to true, the block/item requires a smelting/cooking/baking container such as the Crucible. If false, it can be directly baked/melted without smelting/cooking/baking container.	ingotmold, toolmold
	This property can be used to define a burning material. Plank for example can get on fire: combustibleProps: { burnTemperature: 800, burnDuration: 12, }, Furthermore it can be used to define smelting processes. An example would be an ingotmold which turns into an ingotmold-burned: combustiblePropsByType: { "ingotmold-raw": { meltingPoint: 600, meltingDuration: 30, smeltedRatio: 1, smeltedStack: { type: "block", code: "ingotmold-burned" }, requiresContainer: false } },
nutritionprops	object	-	Information about the blocks nutrients.	-
foodcategory	string	-	Defines the type of food. It can be fruit, vegetable, protein, grain and dairy.	-
saturation	decimal number	0	How much saturation it can restore.	-
health	decimal number	0	How much health it can restore.	-
transitionableProps	-	-	Can be used to transition an item to another item or block.	redmeat, hide
type	-	-	The type of transition method to utilize.	redmeat, hide
Cure	string	-	Will "cure" an item by showing percent progress until cured.	hide
Perish	string	-	Will gradually reduce the saturation of a food item once it's fresh period has passed, eventually converting into the product item (usually rot).	hide
freshHours	number (hours)	-	An optional "fresh" period that must pass before the transition time starts. With food, this is the period of time that saturation is not affected.	bread, vegetable, redmeat
transitionHours	number (hours)	-	Number of hours before the item transitions into a different item.	redmeat, hide
transitionedStack	object (item or block)	-	The item or block that the item will transition into.	redmeat, hide
transitionRatio	number	-	The quantity of the item that will be consumed after the transition period.	redmeat, hide
Attributes
attributes	-	-	Custom Attributes associated with this item.	barrel, chest, pot, skep
	Attributes constitute a large number of custom properties that an block can have, many of which are specific to unique blocks that rely on a C# class for additional functionality. If you wish to add your own JSON attributes to an item generally you must also have a class to utilize them. Values placed here are final and cannot be modified. For example, if you made a new type of block, say one that damages people when they get close you could define them here: attributes: { "touchDamage": 0.1, "sneakAvoidTouchDamage": true, }, Here we have made two new attributes called "touchDamage" and "sneakAvoidTouchDamage" and have given them their own static values to be used in code. As is, these cannot do anything without the usage of C# code in a class. Regardless, we can see that this is a convenient way to create extra properties that can easily be used by other blocks that use the same class.
(Container Attributes)	Attributes that define additional container information.
allowHeating	boolean	-	Used by the pot block to allow it to be heated in either the output or input slot.	pot
bowlContents	string	null	The item code of the contents contained in the bowl, by default this value is null since most bowls will start with nothing inside them.	-
canHold	string (blockcode)	-	What blocks (liquids) a liquid container can hold.	bucket
capacityLitres	number	-	The amount of litres that a liquid container can hold.	bucket
closeSound	Path to sound	-	The sound that plays when a container is opened.	chest, storagevessel
contentBlockCode	-	-	Used by the flowerpot to manually store the block contained in each variant, which drops when the block is broken.	flowerpot, planter
contentConfig	-	-	Used by food troughs to determine the properties of each content type.	trough-large, trough-small
code	String	-	Identifier used for referencing in the JSON.	trough-large, trough-small
content	Item or Block code	-	The item or block placed in the trough.	trough-large, trough-small
foodFor	Entity Code	-	The entity that can interact with (eat) the contents.	trough-large, trough-small
quantityPerFillLevel	number	-	The number of the item or block required to fill a "portion" of the trough.	trough-large, trough-small
maxFillLevels	number	-	The maximum number of portions that the trough can be filled with.	trough-large, trough-small
shapesPerFillLevel	Array of Shape Paths	-	A list of shapes for each level of the trough, with first being empty, the second with one layer etc.	trough-large, trough-small
textureCode	Path to texture	-	The flat texture used for the contents in the trough.	trough-large, trough-small
	The large trough is a good example of how the contentConfig attribute is used, since it uses two different shape progressions for regular seed and dry grass: contentConfig: [ { code: "flax", content: { type: "item", code: "grain-flax" }, foodFor: ["pig-*", "sheep-*"], quantityPerFillLevel: 2, maxFillLevels: 8, shapesPerFillLevel: ["block/wood/trough/large/grainfill1", "block/wood/trough/large/grainfill1", "block/wood/trough/large/grainfill2", "block/wood/trough/large/grainfill2", "block/wood/trough/large/grainfill3", "block/wood/trough/large/grainfill3", "block/wood/trough/large/grainfill4", "block/wood/trough/large/grainfill4"], textureCode: "contents-flax" }, { code: "drygrass", content: { type: "item", code: "drygrass" }, quantityPerFillLevel: 8, maxFillLevels: 8, shapesPerFillLevel: ["block/wood/trough/large/hayfill1", "block/wood/trough/large/hayfill1", "block/wood/trough/large/hayfill2", "block/wood/trough/large/hayfill2", "block/wood/trough/large/hayfill3", "block/wood/trough/large/hayfill3", "block/wood/trough/large/hayfill4", "block/wood/trough/large/hayfill4"], foodFor: ["pig-*", "sheep-*"] } ]
contentItemCode	Item	-	The id of an item stored in a container.	-
contentItem2BlockCode	Item	-	Items that are converted into blocks when store in this container.	bowl
cookingContainerSlots	Number	-	The number of slots a cooking container has.	crucible, pot
defaultTyped	String	-	Since containers have a unique variant form called "types" this is used to determine what the default type is.	chest, storagevessel
dialogTitleLangCode	String	-	Gives a container tooltip a "title" in the lang file (EG "Chest Contents").	chest, storagevessel
displaycasable	boolean	-	If true, allows a block to be placed in a display case.	crystal-small
eatenBlock	Block Code	-	Used by meal blocks to determine what block to return to when the meal has been completely eaten.	bowl
eatenBlock	Block Code	-	Used by meal container blocks to determine what block to return to when the meal has been emptied from it.	pot
fillHeight	Number	-	Determines how high to render molten metal in a tool mold.	toolmold
fillQuadsByLevel	Array of Coordinates	-	Can be used to specify quadrants to render within for tool molds that have higher levels (such as the helve hammer or anvil molds).	toolmold
	We can look at how this is done with the Anvil mold: "fillHeight": 10, "fillQuadsByLevel": [ { x1: 2, z1: 3, x2: 13, z2: 13 }, { x1: 2, z1: 3, x2: 13, z2: 13 }, { x1: 2, z1: 3, x2: 13, z2: 13 }, { x1: 4, z1: 6, x2: 11, z2: 10 }, { x1: 4, z1: 6, x2: 11, z2: 10 }, { x1: 4, z1: 6, x2: 11, z2: 10 }, { x1: 4, z1: 6, x2: 11, z2: 10 }, { x1: 4, z1: 5, x2: 14, z2: 11 }, { x1: 1, z1: 5, x2: 15, z2: 11 }, { x1: 1, z1: 5, x2: 15, z2: 11 }, ], As we can see, the anvil mold has 10 layers rather than one, and because it has different shapes for each layer we can redefine the space to render the molten metal per level by using two corners defined by x and z coordinates within the block. In the end, this gives a cleaner looking poured metal effect (even though it may be difficult to see what's going on in the mold).
handleCookingContainerInteract	boolean	-	If true, can be used to take food from a cooking container.	crock, pot
handleLiquidContainerInteract	boolean	-	If true, can be used to hold liquids.	crock, pot
inFirePitProps	-	-	Gives an item additional rendering properties when placed in a fire pit.	crucible, pot
transform	-	-	If the model type shows the item, it can be transformed using this property.	crucible, pot
useFirepitModel	-	-	Tell the firepit which model to use when this item is placed into it.	crucible, pot
	Here's an example of how the firepit transformation is used by the pot and crucible: inFirePitProps: { transform: { translation: { x: 0, y: 0.125, z: 0 } }, useFirepitModel: "Wide" } If you're familiar with the other transformation code, this is nothing unusual and works on the same principles by changing the scale, position and rotation of the model with respect to the origin of rotation. At the moment wide is the only model used with container items. The other option spit is used with cooking meat directly on the firepit.
input-face	Side ID	-	Used to determine what faces of the block can be used as an input for a hopper (set to "null" since it does not have an input face).	hopper
inventoryClassName	String	-	Used to name an inventory during the loading of inventories in the world. Use "chest" for any generic containers.	chest, storagevessel
item-flowrate	Number	-	Used by the chute block to determine how many items move through it per second.	chute
liquidcontainer	boolean	-	If true, allows the block to hold and take liquids.	bucket
maxContainerSlotStackSize	Number	-	Limits the stacksize of items placed into the container.	pot
maxHeatableTemp	Number	-	The highest temperature that the container can be heated.	pot, crucible
mealBlockCode	Block Code	-	Used by meal blocks to determine which variant is used when filled with a meal.	bowl
mealContainer	boolean	-	Allows the block to function as a meal container (can pull from meal blocks like crocks).	bowl
openSound	Path to Sound	-	Determines what sound is played when a container is opened. Generally used in tandem with closeSound.	chest, storagevessel
output-face	Direction ID	-	Used by the chute block to determine which face of the block is used as an output for transferring items.	chute
panningDrops	-	-	If a block can be used for panning (using the BlockPan class), these are its potential drops.	pan
	You can add all sorts of items using the following format: { type: "item", code: "nugget-nativecopper", chance: { avg: 0.15, var: 0 } },
quantitySlots	number	-	The number of slots a generic container has.	chest, storagevessel
requiredUnits	number	-	The number of units required to fill a tool mold with molten metal.	toolmold
retrieveOnly	boolean	-	If true, makes it so that a container can only be taken from and cannot be used to store new items.	lootvessel
servingCapacity	number	-	The number of servings of a meal a block can hold.	crock, bowl
shelvable	boolean	-	If true, allows the block to be placed on a shelf.	crystal-small, seashell
sitHeight	number (decimal)	-	Used by flower pots to determine how high the incorporated block should be rendered.	flowerpot, planter
spoilSpeedMulByFoodCat	-	-	Used to make food spoil slower or faster when stored in a container.	storagevessel
	The clay storage vessel is a good example of this: spoilSpeedMulByFoodCat: { "normal": { "vegetable": 0.75, "grain": 0.5 } },
storageType	Number (Storage Flag)	-	The storage flag of the container, which can limit what types of items or blocks can be stored within it.	storagevessel
textureMapping	-	-	A more complex method of texturing block shapes with multiple content combinations. Used primarily with the pot to texture the food contents.	pot
types	-	-	A secondary method of variant categorization used by containers to help with assigning attributes.	chest
variantByGroup	-	-	Used by generic containers to group types by a specific variant. "side" is used since it is a common variant of all the types.	chest
variantByGroupInventory	-	-	A subtype inventory name that can be assigned to types (usually this is "null").	chest
waterTightContainerProps	-	-	This contains all the liquid properties of an block, generally determining how it is stored and used with a bucket. Keep in mind this is not generally used for blocks, as most liquids that use this property are items, even if they come from a source block.	water
containable	boolean	-	If true, the liquid can be placed into liquid containers, such as barrels and buckets.	water
itemsPerLitre	number (int)	-	The number of itemstack items required to make a litre of liquid. Generally this value is 1:1, but concentrated items like honey can be 4:1.	water
texture	Path to Texture	-	A "block" texture given to a liquid when it's rendered in containers or other items.	waterportion, honeyportion
allowSpill	boolean	-	If true, allows the player to use the Ctr + Right Click function to "spill" the liquid from a container. The whenSpilled property determines what happens if this is true.	waterportion, limewater
tintIndex	integer	0	Tints the color of the item if it's ever drawn as a block: 0 for no tint, 1 for plant climate tint, 2 for water climate tint.	-	waterportion, limewater
whenFilled	Item or Block Code	-	Determines what is stored in a liquid container when interacted with.	water
whenSpilled	-	-	Determines what happens when the "spill" interaction is used. Only works if the allowSpill property is set to true.	waterportion, limewater
action	string	-	Code identifier that determines what happens when the liquid is spilled from a container.	waterportion, limewater
PlaceBlock	-	-	Places a block at the spilled location.	waterportion
DropContents	-	-	Drops an item at the location. If the item is a liquid it will disappear immediately with a "splash" particle effect.	limeportion
stack	-	-	The block or item dropped when spilled. if the "PlaceBlock" action is chosen a block is placed, if "DropContents" is used an item is generated.	waterportion, limewater
stackByFillLevel	-	-	Allows for different blocks or items to be placed based on the level of the liquid in the container.	waterportion, limewater
	We'll look at an example of how this property is utilized by water block: waterTightContainerProps: { containable: true, itemsPerLitre: 1, whenFilled: { stack: { type: "item", code: "waterportion" } } } As we can see, most of the watertight properties are not used by the block, that's because most of them are used by the item equivalent "waterportion".
(Rendering Attributes)	Attributes that define additional rendering information.
ignoreTintInventory	boolean	-	If true, does not apply texture tints to the block model as an inventory item.	soil
mechancialPower	boolean	-	A special category of values reserved for mechanical power. Currently only "renderer" is used by the angled gears block to determine which combination of gears to render.	angledgears
pushVector	vector coordinates	-	Allows the vector shape of a block to be altered for slopes.	lava, water
(Misc Attributes)	Miscellaneous, unsorted attributes.
allowUnstablePlacement	boolean	-	If the block has the "unstable" behavior, this allows it to be generated in positions that it can fall from.	sand, gravel
beeFeed	boolean	-	Whether or not the block is a viable source of bee feeding (IE a flower).	all crops, bigberrybush, flower, smallberrybush
butterflyFeed	boolean	-	Whether or not the block will attract butterflies.	all crops, bigberrybush, flower, smallberrybush
blastRadius	number	-	Used by bombs to determine the radius of the blast.	oreblastingbomb
blastType	number, 0, 1 or 2	-	Used by bombs to determine what type of blocks are broken.	oreblastingbomb
	0 = Destroys ores, 1 = Destroys stone, 2 = Damages only entities.
canChisel	boolean	-	If true, allows the block to be chiseled.	rock, all slabs
canFallSideways	-	-	If true, allows a block to move sideways when it falls.	gravel
chiselShapeFromCollisionBox	boolean	-	If true, uses the collision box as the starting point for chiseling.	most stairs, all slabs
convertFrom	block	-	If a block converts to another block, this is the block that can be converted.	carcass
convertTo	block	-	If a block converts to another block, this is the block that it will turn into.	carcass
delayGrowthBelowSunlight	number	-	Used by the farmland block to delay growth when sunlight is below the given value.	farmland
drop	-	-	Used by the toolMold block to determine what item it drops, not to be confused with the drops property.	toolMold
fenceConnect	boolean	-	Can be used to prevent a solid block from connecting to fences.	-
grindingProps	-	-	Gives the block a grinding recipe in a quern.	ore-ungraded
type	object	-	Type of stack produced, either a block or item.	-
code	string	-	Name of the item or block produced by the recipe.	ore-ungraded
stacksize	number	-	The amount of the output produced after grinding.	ore-ungraded
growthBlockLayer	string	-	Determines what layers of a block will grow grass, currently only uses "l1soilwithgrass", which grows grass on the first layer only.	soil
growthLightLevel	-	-	Used by the soil block to determine what light level is required for it to grow grass on.	soil
inGameHours	number	-	If a block converts to another block, this is the amount of time required for it to convert.	carcass
injureRadius	number	-	Used by bombs to determine the radius that it will cause injury to entities.	oreblastingbomb
lossPerLevel	-	-	Used in combination with delayGrowthBelowSunlight to determine how much growth progression is lost per light level.	farmland
mechanicalPower	-	-	Used by the angled gear block to determine how to render gears in the different orientations.	angledgears
noDownVariant	-	-	When giving a block variants based off the orientation library, this can be used to prevent a "down" variant from being used.	-
placeBelowBlockCode	block	-	Used by the BlockSoilDeposit class to place specific blocks beneath it during world generation.	clay, peat
preventsDecay	boolean	-	If true, prevents nearby leaves from "decaying", IE disappearing.	log, soil
rotatableInterval	string	-	Gives some blocks additional rotation properties when placed (currently "22.5degnot45deg" and "22.tdeg" are the only two options).	chest
sleepEfficiency	number (decimal)	-	Determines how long a player can sleep in a bed, based off a ratio of 12 hours. (ratio = #maxhours/12).	-
spreadGrass	boolean	-	If true, can spread grass to other soil blocks.	-
stackable	boolean	-	Used by berry bushes to determine whether they can be stacked atop each other.	-
tallGrassGrowChance	number (decimal)	-	Used by the soil block to determine how often it will grow tall grass on top of it.	clay, peat, soil
temperature	-	-	Used by liquids to determine the temperature of the core block.	lava
tempLossPerMeter	number	-	How much temperature is lost for a liquid as it moves away from a source block.	lava
tickGrowthProbability	number (decimal)	-	Used by crops to determine how often it will randomly progress its growth stage per tick.	all crops
toolTransforms	-	-	Used to set default transformation on the toolrack, though all tools generally use their own.	toolrack
weedBlockCodes	-	-	Used by the farmland block to determine what "weeds" can grow on it.	farmland
	We can see here that this property allows tallgrass and horsetails to grow on farmland with varying degrees of likelihood: weedBlockCodes: [ { code: "tallgrass-veryshort", chance: 1 }, { code: "tallgrass-short", chance: 1 }, { code: "tallgrass-mediumshort", chance: 1 }, { code: "tallgrass-medium", chance: 1 }, { code: "flower-horsetail", chance: 0.2 }, ]
Rendering
textures	key: string, value: object		The texture definitions for the block as seen in the world, when dropped on the ground or held in the hand. Within a mod, to refer to a texture from the base game, prefix the path with "game:" (i.e. base: "game:path/to/texture")	all blocks
	The dictionary contains multiple named textures. Different tessellators expect different texture names. Most tessellators accept the special "all" alias to set all textures at once. Default example (glass): textures: { all: { base: "block/glass" }, } Using variantgroups (rock): textures: { all: {base: "block/stone/rock/{rock}" }, } There are a few aliases that set multiple textures at the same time: all - sets all textures for tessellators that support the alias sides - "west", "east", "north", "south", "up", and "down" horizontals - "west", "east", "north", and "south" verticals - "up" and "down" westeast - "west" and "east" northsouth - "north" and "south" For example, hay block uses two aliases: textures: { horizontals: { base: "block/hay/{type}-side" }, verticals: { base: "block/hay/{type}-top" }, }, There are many options to rotate textures, combine them, and randomize the textures by block location.
texturesinventory	key: string, value: object		The texture definitions for the block as seen in the player inventory. Overrides the textures.	-
shape	CompositeShape	-	For the json drawtype, the shape definition of the block as shown in the world, dropped on the ground or held in hand.	Barrel, firepit
base			The path to the shape json file, the base dir is assets/shapes/.	-
rotatex	float	0	Only 90 degree rotations are possible.	-
rotatey	float	0	Only 90 degree rotations are possible.	-
rotatez	float	0	Only 90 degree rotations are possible.	-
offsetx	float	0	Offsets the shape in the X axis.	-
offsety	float	0	Offsets the shape in the Y axis.	-
offsetz	float	0	Offsets the shape in the Z axis.	-
shapeinventory	CompositeShape	-	For the json drawtype, the shape definition of the block as shown in the players inventory.	-
lod0shape	CompositeShape	-	Additional shape that is shown when the block is very close to the camera. Most blocks do not use this.	leavesbranchy
lod2shape	CompositeShape	-	Alternative shape that is shown when the block is very far from the camera. Most blocks do not use this.	looseboulders
drawtype	string	"cube"	Determines which block tessellator processes the block. Select JSON for being able to use custom JSON Models. Use Cube for basic cubes.	-
renderpass	string	"opaque"	Determines which pass the block is drawn in.	-
doNotRenderAtLod2	boolean	false	When false, render the block at level of detail 1, which is visible at all distances within the frustum. When true, only render the block at short and medium distances. This property is only respected by some block tessellators.	torch
ambientocclusion	boolean	true	If ambient occlusion will be applied to the block.	-
tintindex	integer	0	0 for no tint, 1 for plant climate tint, 2 for water climate tint.	-
renderflags	0 ... 255	0	8 bits that are sent to the graphics card for each vertex of the blocks shape. The lower 3 bits are currently used for altering the vertexes z-depth to fix a bunch of z-fighting issues.	-
facecullmode	string	"default"	Determines which sides of the blocks should be rendered.	-
default		0	Culls faces if they are opaque faces adjacent to opaque faces.	-
nevercull		1	Never culls any faces.	-
merge		2	Culls all faces that are adjacent to opaque faces and faces adjacent to blocks of the same id (Example usage: Ice blocks).	-
collapse		3	Culls all faces that are adjacent to opaque faces and the bottom, east or south faces adjacent to blocks of the same id. This causes to still leave one single face in between instead of 2, eliminating any z-fighting.	-
mergematerial		4	Same as Merge but checks for equal material (Example usage: Plain glass and all colored glass blocks).	-
collapsematerial		5	Same as Collapse but checks for equal material (Example usage: All leaves blocks).	-
liquid		6	Same as CollapseMaterial but also culls faces towards opaque blocks.	-
sideopaque	key: string, value: boolean	-	Determines if given block face is fully opaque. If yes, the opposite face of the adjacent block will not be drawn for efficiency reasons.	-
	Sides include: all; horizontals, verticals; east, west, up, down, north, south.
sideao	key: string, value: boolean	-	If AmbientOcclusion will be applied for each side.	-
	Sides include: all; horizontals, verticals; east, west, up, down, north, south.
sideEmitAo	key: string, value: boolean	-	Defines which of the 6 block neighbours should receive AO if this block is in front of them.	-
	Sides include: all; horizontals, verticals; east, west, up, down, north, south.
sidesolid	key: string, value: boolean	-	Determines if given block side is solid. If true, other blocks like torches can be attached to it.	all stairs
	Sides include: all; horizontals, verticals; east, west, up, down, north, south.
randomdrawoffset	boolean	false	If true then the block will be randomly offseted by 1/3 of a block when placed.	flower
randomizeRotations	boolean	false	If true then the block will be randomly rotated when placed. Note: Many random rotated blocks in one chunk will slow down block placement updates. You can increase efficieny by defining alternate shapes with random rotations instead.	flower
lighthsv	byte array with 3 elements. See http://tyron.at/vs/vslightwheel.html for valid values	-	For light emitting blocks: hue, saturation and brightness value.	torch, oillamp, lantern
lightabsorption	0 ... 255	99	For light blocking blocks. Any value above 32 will completely block all light.	-
guitransform	object	block default	Used for scaling, rotation or offseting the block when rendered in guis.	-
fphandtransform	object	block default	Used for scaling, rotation or offseting the block when rendered in the first person mode hand.	-
tphandtransform	object	block default	Used for scaling, rotation or offseting the block when rendered in the third person mode hand.	-
groundtransform	object	block default	Used for scaling, rotation or offseting the rendered as a dropped item on the ground.	-
randomizeaxes	string	"xyz"	Random texture selection - whether or not to use the Y axis during randomization (for multiblock plants).	-
xyz		0		-
xz		1		-
vertexFlags	-	-	Applies special effects to a block, including motion shaders and other fancy renderings.	crops, leaves, snow, tallgrass, waterlily
glowLevel	0 ... 255	0	Causes the block to visually glow if Bloom is enabled. Basic glow level for all the blocks model elements.	glacerice, lava
	blocks value Glacierice 8 Paperlantern 32 Ember 48 Fire, Firepit, Oillamp, Torch 64 Lava 128
grassWindwave	boolean	false	If true, applies the grass wind wave effect to block.	tallgrass, flower, fern
leavesWindwave	boolean	false	If true, applies the rustling leaves effect on a block.	leaves, leavesbranchy
lowContrast	boolean	false	If true, applies a low contrast shader to a block.	snow
reflective	boolean	false	If true, applies a reflective shader effect to a block.	snow
waterWave	boolean	false	If true, applies the water wave effect to block.	waterlily
waterWave	boolean	false	If true, applies the water wave effect to block.	waterlily
zOffset	boolean	number	-	Used to prevent rendering conflicts when blocks are drawn at a distance (IE z-fighting).

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