{
    "format_version": "1.10.0",
    "particle_effect": {
      "description": {
        "identifier": "lifeboat:truck_smoke_1",
        "basic_render_parameters": {
          "material": "particles_alpha",
          "texture": "textures/particle/campfire_smoke"
        }
      },
      "components": {
        "minecraft:emitter_rate_steady": {
          "spawn_rate": 150,
          "max_particles": 5
        },
        "minecraft:emitter_lifetime_expression": {
          "activation_expression": 1,
          "expiration_expression": 0
        },
        "minecraft:emitter_shape_point": {
          "offset": [
            "-1.2",
            "4.2",
            "-0.55"
          ]
        },
        "minecraft:particle_initial_speed": [ "Math.random(-0.08, 0.08)", "Math.random(-0.08, 0.8)", "Math.random(-0.08, 0.08)" ],
        "minecraft:particle_motion_dynamic": {
          "linear_drag_coefficient": 0.5,
          "linear_acceleration": [0, 0.25, 0]
        },
        "minecraft:particle_lifetime_expression": {
          "max_lifetime": "Math.Random(1.5, 4)"
        },
        "minecraft:particle_appearance_billboard": {
            "size": [0.2 , 0.2 ],
            "facing_camera_mode": "lookat_xyz",
            "uv": {
              "texture_width": 1,
              "texture_height": 12,
              "uv": [ 0, "Math.floor(variable.particle_random_2 * 12)" ],
              "uv_size": [ 1, 1 ]
            }
          }
      }
    }
  }
  