bedrock-samples/resource_pack/animation_controllers/persona.animation_controllers.json

{
  "format_version": "1.10.0",
  "animation_controllers": {
    "controller.animation.persona.blink": {
      "initial_state": "default",
      "states": {
        "default": {
          "transitions": [
            { "open": "variable.is_blinking = 0; variable.return_from_blink = query.life_time + math.random(0, 0.2); variable.last_blink_time = query.life_time; return variable.last_blink_time != 0;" }
          ]
        },
        "open": {
          "transitions": [
            { "blink": "variable.is_blinking = 0; variable.return_from_blink = query.life_time + math.random(0, 0.2); return query.life_time > (variable.last_blink_time + math.random(3, 40));" }
          ]
        },
        "blink": {
          "transitions": [
            { "open": "variable.is_blinking = 1; variable.last_blink_time = query.life_time; return query.all_animations_finished && (query.life_time > (variable.return_from_blink ?? 0.2));" }
          ]
        }
      }
    }
  }
}