Crop Growth & Vigor

A & A Cooking crops use a layered environmental model. Growth depends on the current season, soil, light, climate, weather, pollination, and crop vigor.

Status: Implemented

All nine current crops use the same environmental framework with crop specific ranges for temperature, humidity, wind, moisture, seasons, yield, and pollination.

Growth probability

The current growth equation is:

Pg = 0.20 × Sf × Mf × Lf × Ff × Tf × Hf × Wf × Stf × SoTf × Pf × Vf

where:

Sf = season factor
Mf = soil moisture factor
Lf = light factor
Ff = fertility factor
Tf = temperature factor
Hf = humidity factor
Wf = wind factor
Stf = storm factor
SoTf = soil thermal factor
Pf = pollination factor
Vf = vigor factor

The final chance is clamped from 0 to 1.

Temperature and humidity

Each crop defines:

an absolute minimum
an optimal minimum
an optimal maximum
an absolute maximum

The factor is 1 inside the optimal range, falls smoothly outside that range, and reaches 0 at the absolute limits.

See Current Crops for every crop’s values.

Wind and storms

Crops exposed to the sky compare local wind speed against their comfortable and damaging wind thresholds. Wind at or below the comfortable value has no growth penalty. At the damaging value, the wind growth factor reaches the system minimum of 0.15×.

Storm severity also applies a growth factor:

Severity	Growth factor
None	1.00×
Rumbling	0.95×
Thunderstorm	0.75×
Severe	0.40×
Extreme	0.10×

Crops that are not exposed to the sky ignore wind and storm penalties.

Storm damage

Storms can directly damage exposed crops during crop updates. Base damage chances before wind stress and growth stage vulnerability are:

Severity	Base damage chance
Rumbling	1%
Thunderstorm	5%
Severe	20%
Extreme	45%

Wind can add up to 25 percentage points before stage vulnerability is applied. Final damage chance is capped at 85%.

Damage reduces vigor. Extreme storms remove 2 vigor; Severe storms have a 25% chance to remove 2 instead of 1. Some later growth stages can also regress by one age step, with higher regression chances in stronger storms.

Soil temperature

Crop roots use a soil thermal state derived from surface temperature, a slower thermal base, and snow insulation.

Soil state	Temperature	Growth factor
Frozen	≤ -0.5 °C	0.00×
Thawing	-0.5 to 0.5 °C	0.40×
Thawed	≥ 0.5 °C	1.00×

Snow can insulate soil toward 0 °C while meltwater can contribute to soil moisture during thaw conditions.

Vigor target

Environmental factors also produce a target vigor from 0-7. The current weighting is:

Factor	Weight
Temperature	20%
Moisture	18%
Season	14%
Soil thermal state	11%
Light	8%
Fertility	8%
Humidity	8%
Wind	7%
Storm	6%

Actual vigor moves only one level toward the target on each crop update.

Vigor contributes a growth factor from 0.25× at vigor 0 to 1.00× at vigor 7.

Healthy, Dying, and Dead

Condition	Behavior
Healthy	Can grow normally
Dying	Cannot grow; can recover if vigor rises above 0
Dead	Terminal state

A Healthy crop whose vigor reaches 0 becomes Dying. A Dying crop that remains at 0 on a later update becomes Dead. Recovery above 0 returns a Dying crop to Healthy.

Pollination

Pollination is checked during Flowering and Fruit Set. Valid nearby sources include vanilla flower tagged blocks and A & A Cooking crops currently in Flowering stage.

Crop profiles can use no pollination, beneficial pollination, or required pollination. Current crop values are listed on Current Crops.

Harvest yield and quality

Vigor at harvest controls output quantity between the crop profile’s minimum and maximum yield. Ingredient quality ranges from 25 to 100 in 5 point steps and is carried into the ingredient state.