Tree Simulator

The Tree Simulator is a block that automates tree growing and harvesting. It periodically simulates a full harvest cycle and deposits the output items directly into its output slots.

Crafting

[ ][ ][ ]
[C][D][C]
[C][C][C]

C = Cyan Terracotta, D = Dirt

Ingredients: 5× Cyan Terracotta + 1× Dirt

Interface

Open the Tree Simulator by right-clicking it.

Slot	Description
Input slot (1)	Place a Resources Sapling here. Stack size is limited to 1.
Output slots (9)	Harvested items are deposited here automatically.
Axe slot (1)	Requires an axe to operate. The axe loses 1 durability per harvest cycle.
Progress bar	Shows growth progress toward the next harvest.

Operation

Each server tick the simulator checks:

1. Is there a valid Resources Sapling in the input with available output space?
2. Is the axe still intact (durability not maxed, or has Unbreakable component)?

If both conditions pass, the growTicks counter increments. When it reaches maxGrowTicks, a harvest fires.

Harvest

On each harvest cycle:

• Each drop entry in the recipe is rolled independently.
• For each entry: rolls minRolls to maxRolls times, each roll has a chance probability of producing one item.
• Items are deposited into the first available output slot.
• The axe takes 1 durability damage.

Default Drop Table

If no custom recipe exists for the current sapling and type, the simulator uses this default:

Drop	Chance	Min Rolls	Max Rolls
Log (type-matched)	50%	1	4
Leaf Fragment (guaranteed)	100%	1	1
Leaf Fragment (bonus)	leafDropChance of type	1	4
Resources Sapling	saplingDropChance of type	1	1
Stick	10%	1	2
Apple	5%	1	1

Axe Speed Multiplier

The axe tier determines how fast the simulator counts ticks. The multiplier divides the base treeSimulatorTicks:

actualTicks = treeSimulatorTicks / axeMultiplier

Default multipliers (configurable via Axe Speed Config):

Axe	Multiplier	Iron Tree (1200t base)
Wooden Axe	1.0×	1200 ticks (60s)
Stone Axe	2.0×	600 ticks (30s)
Iron Axe	3.0×	400 ticks (20s)
Diamond Axe	4.0×	300 ticks (15s)
Netherite Axe	5.0×	240 ticks (12s)
Golden Axe	6.0×	200 ticks (10s)

Unbreakable Axe

An axe with the Unbreakable data component never takes durability damage in the simulator, enabling indefinite operation.

Axe Breaks

When an axe reaches maximum damage, it is automatically removed from the axe slot. The simulator stops until a new axe is inserted.

Automation (Hopper/Pipe)

The Tree Simulator implements WorldlyContainer:

Face	Behavior
Top / Sides	Hoppers can insert into the input slot
Bottom	Hoppers can extract from the output slots

The axe slot is not accessible via hopper automation.

Item Renderer

While a sapling is in the input slot, it is rendered floating above the simulator block. The sapling grows in scale proportionally to the current progress.

Block Entity Data

{
  "input": [...],
  "output": [...],
  "axe": [...],
  "growTicks": 240,
  "maxGrowTicks": 400
}

growTicks and maxGrowTicks are synced to the client for the progress bar display.