behavior_packs/vanilla/entities/fish.json

{
  "format_version": "1.26.0",
  "minecraft:entity": {
    "description": {
      "identifier": "minecraft:cod",
      "is_experimental": false,
      "is_summonable": true,
      "is_spawnable": true,
      "spawn_category": "water_ambient"
    },
    "components": {
      "minecraft:behavior.avoid_mob_type": {
        "entity_types": [
          {
            "filters": {
              "AND": [
                {
                  "test": "is_family",
                  "subject": 1,
                  "operator": 0,
                  "value": "player"
                }
              ]
            },
            "max_dist": 6,
            "walk_speed_multiplier": 1.5,
            "sprint_speed_multiplier": 2
          }
        ],
        "priority": 1
      },
      "minecraft:behavior.random_swim": { // Randomly selects points to go to, even in water
        "interval": 0,
        "xz_dist": 16,
        "priority": 3,
        "speed_multiplier": 1,
        "y_dist": 4
      },
      "minecraft:behavior.swim_idle": {
        "priority": 5
      },
      "minecraft:behavior.swim_wander": {
        "interval": 0.1,
        "look_ahead": 2,
        "priority": 4
      },
      "minecraft:breathable": {
        "breathes_air": false,
        "breathes_lava": false,
        "breathes_water": true,
        "suffocate_time": 0,
        "total_supply": 15
      },
      "minecraft:collision_box": {
        "height": 0.3,
        "width": 0.6
      },
      "minecraft:despawn": {
        "filters": [
          {
            "all_of": [
              {
                "test": "is_persistent",
                "value": false
              },
              {
                "operator": ">",
                "test": "distance_to_nearest_player",
                "value": 40
              }
            ]
          }
        ]
      },
      "minecraft:experience_reward": {
        "on_death": {
          "expression": "query.last_hit_by_player ? Math.Random(1,3) : 0",
          "version": 0
        }
      },
      "minecraft:flocking": {
        "breach_influence": 7,
        "block_distance": 2,
        "high_flock_limit": 8,
        "block_weight": 0.85,
        "min_height": 1.5,
        "cohesion_threshold": 1.95,
        "in_water": true,
        "cohesion_weight": 2,
        "goal_weight": 2,
        "influence_radius": 3,
        "innner_cohesion_threshold": 1.25,
        "loner_chance": 0.1,
        "low_flock_limit": 4,
        "match_variants": false,
        "max_height": 6,
        "separation_threshold": 0.95,
        "separation_weight": 1.75,
        "use_center_of_mass": true
      },
      "minecraft:health": {
        "max": 6,
        "value": 6
      },
      "minecraft:hurt_on_condition": {
        "damage_conditions": [
          {
            "cause": "lava",
            "damage_per_tick": 4,
            "filters": {
              "operator": "==",
              "test": "in_lava",
              "subject": "self",
              "value": true
            }
          }
        ]
      },
      "minecraft:loot": {
        "table": "loot_tables/entities/fish.json"
      },
      "minecraft:movement": {
        "value": 0.1
      },
      "minecraft:movement.sway": {
        "sway_amplitude": 0
      },
      "minecraft:nameable": {},
      "minecraft:navigation.generic": { // Allows the mob to go through water
        "can_breach": false,
        "can_walk": false,
        "can_path_over_water": false,
        "can_sink": false,
        "can_swim": true,
        "is_amphibious": false,
        "using_door_annotation": true
      },
      "minecraft:physics": {
        "has_gravity": false
      },
      "minecraft:pushable": {
        "is_pushable": true,
        "is_pushable_by_piston": true
      },
      "minecraft:scale": {
        "value": 1
      },
      "minecraft:type_family": {
        "family": [
          "cod",
          "fish"
        ]
      },
      "minecraft:underwater_movement": {
        "value": 0.1
      }
    },
    "events": null
  }
}