I am creating a computer game in which the character needs to consume food in order to not starve to death. In the game I can display the level of how much food the character currently needs via "hunger level" - the higher this value, the more desperately the character needs food.
But what I want now is to turn that around, so that this level tells how full the stomach of the character is. In German we have a word for that, "Sättigung", which means how full my stomach is (or better: how full it feels to me), it is basically the opposite of hunger.
Is there a similar word in English, which means exactly that, the opposite of hunger? It might be something like "saturation", but from what I can tell this word is usually used in a technical context, like in "the saturation of a color".
Can I use that "saturation" to describe the opposite of hunger of a human or animal, or is there a better word for that?