bedrock-samples/behavior_pack/entities/guardian.json

{
  "format_version": "1.16.0",
  "minecraft:entity": {
    "description": {
      "identifier": "minecraft:guardian",
      "spawn_category": "monster",
      "is_spawnable": true,
      "is_summonable": true,
      "is_experimental": false
    },

    "component_groups": {
      "minecraft:guardian_aggressive": {
        "minecraft:behavior.nearest_attackable_target": {
          "priority": 1,
          "entity_types": [
            {
              "filters": {  
                "any_of": [
                  { "test" :  "is_family", "subject" : "other", "value" :  "player"},
                  { "test" :  "is_family", "subject" : "other", "value" :  "squid"},
                  { "test" :  "is_family", "subject" : "other", "value" :  "axolotl"}
                ] 
              },
              "max_dist": 16
            }
          ],
          "attack_interval_min": 1.0,
          "must_see": true
        },
        "minecraft:target_nearby_sensor": {
          "inside_range": 3.0,
          "outside_range": 4.0,
          "on_inside_range": {
            "event": "minecraft:target_too_close",
            "target": "self"
          }
        },
        "minecraft:behavior.guardian_attack": {
          "priority": 4
        }
      },

      "minecraft:guardian_passive": {
        "minecraft:timer": {
          "time": [ 1, 3 ],
          "looping": false,
          "time_down_event": {
            "event": "minecraft:target_far_enough",
            "target": "self"
          }
        },
        "minecraft:behavior.avoid_mob_type": {
          "priority": 1,
          "entity_types": [
            {
              "filters": {"test" :  "is_family", "subject" : "other", "value" :  "player"},
              "max_dist": 8,
              "walk_speed_multiplier": 1,
              "sprint_speed_multiplier": 1
            }
          ]
        }
      }
    },

    "components": {
      "minecraft:is_hidden_when_invisible": {
      },
      "minecraft:experience_reward": {
        "on_death": "query.last_hit_by_player ? 10 : 0"
      },
      "minecraft:nameable": {
      },
      "minecraft:collision_box": {
        "width": 0.85,
        "height": 0.85
      },
      "minecraft:health": {
        "value": 30,
        "max": 30
      },
      "minecraft:hurt_on_condition": {
        "damage_conditions": [
          {
            "filters": { "test": "in_lava", "subject": "self", "operator": "==", "value": true },
            "cause": "lava",
            "damage_per_tick": 4
          }
        ]
      },
      "minecraft:movement": {
        "value": 0.12
      },
      "minecraft:underwater_movement": {
        "value": 0.12
      },
      "minecraft:attack": {
        "damage": 5
      },
      "minecraft:follow_range": {
        "value": 16,
        "max": 16
      },
      "minecraft:navigation.generic": {
        "is_amphibious": true,
        "can_path_over_water": false,
        "can_swim": true,
        "can_walk": false,
        "can_breach": true
      },
      "minecraft:movement.sway": {
      },
      "minecraft:jump.static": {
      },
      "minecraft:breathable": {
        "breathes_water": true
      },
      "minecraft:loot": {
        "table": "loot_tables/entities/guardian.json"
      },
      "minecraft:despawn": {
        "despawn_from_distance": {}
      },
      "minecraft:home": {
        "restriction_radius": 16
      },
      "minecraft:behavior.nearest_attackable_target": {
        "priority": 1,
        "entity_types": [
          {
            "filters": {  
              "any_of": [
                { "test" :  "is_family", "subject" : "other", "value" :  "player"},
                { "test" :  "is_family", "subject" : "other", "value" :  "squid"},
                { "test" :  "is_family", "subject" : "other", "value" :  "axolotl"}
              ] 
            },
            "max_dist": 16
          }
        ],
        "attack_interval_min": 1.0,
        "must_see": true
      },
      "minecraft:target_nearby_sensor": {
        "inside_range": 3.0,
        "outside_range": 4.0,
        "on_inside_range": {
          "event": "minecraft:target_too_close",
          "target": "self"
        }
      },
      "minecraft:behavior.guardian_attack": {
        "priority": 4
      },
     "minecraft:behavior.move_towards_home_restriction": {
        "priority": 5,
        "speed_multiplier": 1.0
      },
      "minecraft:behavior.random_swim": {
        "priority": 7,
        "speed_multiplier": 1.0,
        "interval": 80,
        "avoid_surface": false
      },
      "minecraft:behavior.look_at_player": {
        "priority": 8,
        "look_distance": 12.0,
        "probability": 0.01
      },
      "minecraft:behavior.random_look_around": {
        "priority": 9
      },
      "minecraft:type_family": {
        "family": [ "guardian", "monster", "mob" ]
      },
	    "minecraft:physics": {
      },
      "minecraft:pushable": {
        "is_pushable": true,
        "is_pushable_by_piston": true
      },
      "minecraft:conditional_bandwidth_optimization": {
      }
    },

    "events": {
      "minecraft:target_too_close": {
        "remove": {
          "component_groups": [
            "minecraft:guardian_aggressive"
          ]
        },
        "add": {
          "component_groups": [
            "minecraft:guardian_passive"
          ]
        }
      },
      "minecraft:target_far_enough": {
        "remove": {
          "component_groups": [
            "minecraft:guardian_passive"
          ]
        },
        "add": {
          "component_groups": [
            "minecraft:guardian_aggressive"
          ]
        }
      }
    }
  }
}