Don't want to write this by hand? GodCraft sets minecraft:behavior.random_swim for you with a switch.Get GodCraftOverview
minecraft:behavior.random_swim is an entity component: it goes in the components object of a custom mob, or in one of its component groups. Makes a water mob swim to random spots in the water. Use it for fish and other swimmers.
Fields
| Field | Type | Default | Description |
|---|---|---|---|
avoid_surface | boolean | true | If true, the mob stays under the top layer of water. |
speed_multiplier | number | 1 | Speeds the mob up or slows it down while this goal runs: 1 is normal speed. |
xz_dist | integer | 10 | How far sideways the mob looks for a new spot. Must be at least 1. |
y_dist | integer | 7 | How far up and down the mob looks for a new spot. Must be at least 1. |
interval | integer | 120 | Sets how often the goal is picked: there is a 1 in interval chance each time. Bigger values mean the mob moves less often. |
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.random_swim": {
"avoid_surface": true,
"speed_multiplier": 1,
"xz_dist": 10,
"y_dist": 7,
"interval": 120,
"priority": 0,
"control_flags": []
}
}