'fire':
      type: world 
      events: 

  

        on player right clicks with i@nether_brick_item: 

        - if !<player.has_flag[fire]> { 

        - flag fire duration:5s 

          - define range 20 

          - ^repeat %range% { 

            - foreach <def[targets]> { 

              - if <def[value].has_effect[NIGHT_VISION]> { 

                - hurt 30 %value% 

                } 

              } 

            } 

          }