Jak korzystać z particles

Nie działa mi to:

every 1 seconds:    loop all players:        if {efekt.%loop-player%} is "serca":            play 20 of effect "heart" with data 1 at loop-player        if {efekt.%loop-player%} is "ogien":            play 50 of effect "flame" with data 0 at loop-player        if {efekt.%loop-player%} is "nuty":            play 20 of effect "note" with data 1 at loop-player        if {efekt.%loop-player%} is "magia":            play 100 of effect "mobSpell" with data 1 at loop-player        if {efekt.%loop-player%} is "redstone":            play 200 of effect "reddust" with data 0 at loop-player        if {efekt.%loop-player%} is "kolory":            play 200 of effect "reddust" with data 1 at loop-player        if {efekt.%loop-player%} is "wiedzma":            play 100 of effect "witchMagic" with data 0 at loop-player        if {efekt.%loop-player%} is "enchant":            play 50 of effect "enchantmenttable" with data 0 at loop-player        if {efekt.%loop-player%} is "lava":            play 20 of effect "lava" with data 0 at loop-player        if {efekt.%loop-player%} is "dym":            play 50 of effect "cloud" with data 0 at loop-player        if {efekt.%loop-player%} is "zly":            play 20 of effect "angryVillager" with data 0 at loop-player

Prosze o pomoc może być nawet pod komendą.