Progress counts only when the calories of the player performing the action
are within the specified bounds at that instant. This is the food number on
the vitals HUD, which runs from 0 to 500.
The hungry warning shows at low calories, around 40 and below.
Starvation damage starts at 20 or below. So “while hungry” is
maxCalories: 40, “while starving” is maxCalories: 20.
The abundance direction works too: “while well fed” is something like
minCalories: 400.
Either bound can be null (or omitted entirely) for “no limit on that
side”, but at least one bound is required. A condition with neither
bound would always be satisfied, so it is invalid and the contract will not
load.
If minCalories is greater than maxCalories, the plugin swaps them and
logs a warning.