on rightclick holding a nether star:
    open chest with 6 rows named "&dServer Menu" to player
    set slot 10 of player's current inventory to blaze powder named "&cKillEffect &dSelect"

on inventory click:
    inventory name of player's current inventory is "&dServer Menu"
    if clicked slot is 10:
        open chest with 3 rows named "&cKillEffect &dSelect" to player
        if {killeffect.%player%} is not set:
            set slot 0 of player's current inventory to redstone dust named "&4&lBlood KillEffect"
            set slot 1 of player's current inventory to glass block named "&eThunder KillEffect"
            set slot 26 of player's current inventory to glowing stone named "&cKillEffect Delete" with lore "&aSelected"
        else if {killeffect.%player%} is "blood":
            set slot 0 of player's current inventory to glowing redstone dust named "&4&lBlood KillEffect" with lore "&aSelected"
            set slot 1 of player's current inventory to glass block named "&eThunder KillEffect"
            set slot 26 of player's current inventory to stone named "&cKillEffect Delete"
        else if {killeffect.%player%} is "thunder":
            set slot 0 of player's current inventory to redstone dust named "&4&lBlood KillEffect"
            set slot 1 of player's current inventory to glowing glass block named "&eThunder KillEffect" with lore "&aSelected"
            set slot 26 of player's current inventory to stone named "&cKillEffect Delete"

on inventory click:
    inventory name of player's current inventory is "&cKillEffect &dSelect"
    if clicked slot is 0:
        cancel event
        set {killeffect.%player%} to "blood"
        play sound "BLOCK_DISPENSER_FAIL" to player with volume 1 and pitch 1
        send "{@kill} &4&lBlood&eを選択しました" to player
        open chest with 3 rows named "&cKillEffect &dSelect" to player
        set slot 0 of player's current inventory to glowing redstone dust named "&4&lBlood KillEffect" with lore "&aSelected"
        set slot 1 of player's current inventory to glass block named "&eThunder KillEffect"
        set slot 26 of player's current inventory to stone named "&cKillEffect Delete"
    if clicked slot is 1:
        cancel event
        set {killeffect.%player%} to "thunder"
        play sound "BLOCK_DISPENSER_FAIL" to player with volume 1 and pitch 1
        send "{@kill} &e&lThunder&eを選択しました" to player
        open chest with 3 rows named "&cKillEffect &dSelect" to player
        set slot 0 of player's current inventory to redstone dust named "&4&lBlood KillEffect"
        set slot 1 of player's current inventory to glowing glass block named "&eThunder KillEffect" with lore "&aSelected"
        set slot 26 of player's current inventory to stone named "&cKillEffect Delete"
    if clicked slot is 26:
        cancel event
        delete {killeffect.%player%}
        play sound "BLOCK_DISPENSER_FAIL" to player with volume 1 and pitch 1
        send "{@kill} &c&lKillEffect&eをリセットしました" to player
        open chest with 3 rows named "&cKillEffect &dSelect" to player
        set slot 0 of player's current inventory to redstone dust named "&4&lBlood KillEffect"
        set slot 1 of player's current inventory to glass block named "&eThunder KillEffect"
        set slot 26 of player's current inventory to glowing stone named "&cKillEffect Delete" with lore "&aSelected"

on death of player:
    if {killeffect.%attacker%} is "blood":
        show 30 BLOCK_CRACK particles at location of victim with data of block of redstone offset by 0, 0, 0
        loop all players in radius 5 around location of victim:
            command "execute %loop-player% ~ ~ ~/playsound minecraft:BLOCK.METAL.BREAK master %loop-player%"
    else if {killeffect.%attacker%} is "thunder":
        create lightning effect at the victim

on death of player:
    if {game} is "true":
        execute console command "execute %attacker% ~ ~ ~ /playsound minecraft:entity.experience_orb.pickup master