on left click:
   if {fade.%player%} = true:
      set {fade.%player%} to false
      loop all players:
         apply invisibility to player for 4 seconds
         show 100 "heart" particles at location of player for loop-player offset by 0.4, 0.7, 0.4
         wait 1 second
         show 100 "heart" particles at location of player for loop-player offset by 0.4, 0.7, 0.4
         wait 1 second
         show 100 "heart" particles at location of player for loop-player offset by 0.4, 0.7, 0.4
         wait 1 second
         show 100 "heart" particles at location of player for loop-player offset by 0.4, 0.7, 0.4
         wait 1 second
         show 100 "heart" particles at location of player for loop-player offset by 0.4, 0.7, 0.4
         apply invisibility to player for 0 seconds
         stop the loop