function f:clear_chat
tag @a add engine.upgrade
playsound minecraft:block.beacon.activate ambient @a 28.50 88.00 -1.52 9999999999 0
playsound minecraft:block.beacon.activate ambient @a 28.50 88.00 -1.52 9999999999 1
playsound minecraft:block.beacon.activate ambient @a 28.50 88.00 -1.52 9999999999 2
particle minecraft:totem_of_undying 28.50 88.38 -1.50 10 10 10 0.1 1000
particle minecraft:effect 28.47 88.38 -1.53 1 5 1 0.1 100