damage indicator

on damage:
 attacker is player
 {di.%attacker%} is not 1
 wait 1 tick
 set {damage.%victim's uuid%} to 1
 set action bar of attacker to "<gold>%victim% <gray>HP: <light red>%victim's health%<gray>/<light green>%victim's max health% <gray>(<yellow>-%damage%<gray>)"
 wait 1 second
 set {damage.%victim's uuid%} to 0

on any movement:
 player's target entity is set
 {di.%player%} is not 1
 "%player's target entity%" is not "experience orb"
 "%player's target entity%" is not "dropped item"
 {damage.%player's target entity's uuid%} is not 1
 loop blocks between block at location 1 meter above the player and block at location 1 meter above the player's target entity:
  if loop-block is not air:
   set {_block} to 1
 if {_block} is not 1:
  set action bar of player to "<gold>%player's target entity% <gray>HP: <light green>%player's target entity's max health%"

command /di:
 trigger:
  if {di.%player%} is not 1:
   set {di.%player%} to 1
   message "<gold>damage indicator off"
  else:
   set {di.%player%} to 0
   message "<gold>damage indicator on"