{
  "format_version": "1.10.0",
  "particle_effect": {
    "description": {
      "identifier": "minecraft:heart_particle",
      "basic_render_parameters": {
        "material": "particles_alpha",
        "texture": "textures/particle/particles"
      }
    },
    "components": {
      "minecraft:emitter_rate_manual": {
        "max_particles": 0
      },

      "minecraft:emitter_lifetime_expression": {
        "activation_expression": 1,
        "expiration_expression": 0
      },

      "minecraft:emitter_shape_sphere": {
        "radius": 0.025,
        "direction": [ 0.0, 0.1, 0.0 ]
      },

      "minecraft:particle_initial_speed": 2.5,

      "minecraft:particle_lifetime_expression": {
        "max_lifetime": "Math.random(0.2, 1.5)"
      },

      "minecraft:particle_motion_dynamic": {
        "linear_drag_coefficient": 5
      },

      "minecraft:particle_appearance_billboard": {
        "size": [
          "(0.2 + variable.particle_random_1*0.1)",
          "(0.2 + variable.particle_random_1*0.1)"
        ],
        "facing_camera_mode": "lookat_xyz",

        "uv": {
          "texture_width": 128,
          "texture_height": 128,
          "uv": [ 0, 40 ],
          "uv_size": [ 8, 8 ]
        }
      },
      "minecraft:particle_appearance_lighting": {}
    }
  }
}
