Don't want to write this by hand? GodCraft sets minecraft:behavior.swim_up_for_breath for you with a switch.Get GodCraftOverview
minecraft:behavior.swim_up_for_breath is an entity component: it goes in the components object of a custom mob, or in one of its component groups. Makes a mob swim up to find air when it is about to run out of breath. Needs minecraft:breathable. Dolphins and turtles use it.
Fields
| Field | Type | Default | Description |
|---|---|---|---|
speed_mod | number | 1.4 | Speeds the mob up or slows it down while this goal runs: 1 is normal speed. |
search_radius | integer | 4 | How far around the mob it looks for an air block. |
search_height | integer | 16 | How far above the mob it looks for air. If none is found, it swims straight up this many blocks. |
material_type | string | "water" | Which liquid the mob swims in: "water", "lava" or "any". The air block must sit above this liquid. |
priority | integer | 0 | Decides which goal wins when several want to run: lower numbers run first.Range: 0 to … |
control_flags | Goal's control flags[] | none | Lists the body parts this goal takes control of (such as move, look or jump), so goals that need the same part don't run together. |
Example
Inside the components object of BP/entities/<name>.json (values are the defaults or placeholders):
BP/entities/<name>.json
{
"minecraft:behavior.swim_up_for_breath": {
"speed_mod": 1.4,
"search_radius": 4,
"search_height": 16,
"material_type": "water",
"priority": 0,
"control_flags": []
}
}