ショットガンの実現とその問題

on projectile collide:
    projectile has metadata value "damage"
    set {_player} to shooter of projectile
    cancel the event
    set {_vec} to velocity of projectile
    set {_loc} to location at projectile
    set {_loopNum} to floor(normal length of {_vec}) * 2
    set normal length of {_vec} to 0.5
    set {_HS} to false
    set {_LS} to false
    loop {_loopNum} times:
        set {_loc} to {_loc} ~ {_vec}
        if distance between {_loc} and location at entity's head < 0.5:
            set {_HS} to true
            exit 1 sections
        else if distance between {_loc} and location at entity < 0.5:
            set {_LS} to true
            exit 1 sections
    set {_damage} to metadata value "damage" of projectile
    message "%{_damage}%" to {_player} 
    set {_dmgSource} to new damagesource with type "attack"
    damagesource attacker of {_dmgSource} to {_player}
    ignore creative of {_dmgSource} to true
    ignore no damage ticks of {_dmgSource} to true
    wait 1 tick
    if {_HS} is true:
        set {_damage} to {_damage} *2
    else if {_LS} is true:
        set {_damage} to {_damage} *0.6
    else:
        set {_damage} to {_damage}
    damage entity by {_damage} with damage source {_dmgSource}

on projectile collide:
    projectile has metadata value "damage"
    set {_player} to shooter of projectile
    cancel the event
    set {_vec} to velocity of projectile
    set {_loc} to location at projectile
    set {_loopNum} to floor(normal length of {_vec}) * 2
    set normal length of {_vec} to 0.5
    set {_HS} to false
    set {_LS} to false
    loop {_loopNum} times:
        set {_loc} to {_loc} ~ {_vec}
        if distance between {_loc} and location at entity's head < 0.5:
            set {_HS} to true
            exit 1 sections
        else if distance between {_loc} and location at entity < 0.5:
            set {_LS} to true
            exit 1 sections
    set {_damage} to metadata value "damage" of projectile
    message "%{_damage}%" to {_player} 
    set {_dmgSource} to new damagesource with type "attack"
    damagesource attacker of {_dmgSource} to {_player}
    ignore creative of {_dmgSource} to true
    ignore no damage ticks of {_dmgSource} to true
    wait 1 tick
    if {_HS} is true:
        set {_damage} to {_damage} *2
    else if {_LS} is true:
        set {_damage} to {_damage} *0.6
    else:
        set {_damage} to {_damage}
    damage entity by {_damage} with damage source {_dmgSource}

on projectile collide:
    projectile has metadata value "damage"
    set {_player} to shooter of projectile
    cancel the event
    set {_vec} to velocity of projectile
    set {_loc} to location at projectile
    set {_loopNum} to floor(normal length of {_vec}) * 2
    set normal length of {_vec} to 0.5
    set {_HS} to false
    set {_LS} to false
    loop {_loopNum} times:
        set {_loc} to {_loc} ~ {_vec}
        if distance between {_loc} and location at entity's head < 0.5:
            set {_HS} to true
            exit 1 sections
        else if distance between {_loc} and location at entity < 0.5:
            set {_LS} to true
            exit 1 sections
    set {_damage} to metadata value "damage" of projectile
    message "%{_damage}%" to {_player} 
    set {_dmgSource} to new damagesource with type "attack"
    set damagesource attacker of {_dmgSource} to {_player}
    set ignore creative of {_dmgSource} to true
    set ignore no damage ticks of {_dmgSource} to true
    wait 1 tick
    if {_HS} is true:
        set {_damage} to {_damage} *2
    else if {_LS} is true:
        set {_damage} to {_damage} *0.6
    else:
        set {_damage} to {_damage}
    damage entity by {_damage} with damage source {_dmgSource}

on projectile collide:
    projectile has metadata value "damage"
    set {_player} to shooter of projectile
    cancel the event
    set {_vec} to velocity of projectile
    set {_loc} to location at projectile
    set {_loopNum} to floor(normal length of {_vec}) * 2
    set normal length of {_vec} to 0.5
    set {_HS} to false
    set {_LS} to false
    loop {_loopNum} times:
        set {_loc} to {_loc} ~ {_vec}
        if distance between {_loc} and location at entity's head < 0.5:
            set {_HS} to true
            exit 1 sections
        else if distance between {_loc} and location at entity < 0.5:
            set {_LS} to true
            exit 1 sections
    set {_damage} to metadata value "damage" of projectile
    message "%{_damage}%" to {_player} 
    set {_dmgSource} to new damagesource with type "attack"
    set damagesource attacker of {_dmgSource} to {_player}
    set ignore creative of {_dmgSource} to true
    set ignore no damage ticks of {_dmgSource} to true
    wait 1 tick
    if {_HS} is true:
        set {_damage} to {_damage} *2
    else if {_LS} is true:
        set {_damage} to {_damage} *0.6
    else:
        set {_damage} to {_damage}
    damage entity by {_damage} with damage source {_dmgSource}

set {_damagesource} to new damage source with type "player"
set damage source entity of {_damagesource} to player
set ignore no damage ticks of {_damagesource} to true
set prevent knockback of {_damagesource} to true
damage target entity by 9 with damage source {_damagesource}

set {_damagesource} to new damage source with type "player"
set damage source entity of {_damagesource} to player
set ignore no damage ticks of {_damagesource} to true
set prevent knockback of {_damagesource} to true
damage target entity by 9 with damage source {_damagesource}