How do i make a fortnite-like building system Click on for more

[Yushaa]

How do i make a fortnite-like building system that when i right click oak slabs or oak planks it spawns a 3x3 platform of the block i am holding
i need to explain more indepth
Like if i am holding an oak plank with the name &6Wall and i right click,it spawns a 3x3 wall of oakplanks wherever my cursor is pointed at
and if i am holding an oak slab with the name &6Floor and i right click it spawns a 3x3 floor wherever my cursor is pointed at
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lunetivfx

 

[AQika]

Do you want it to spawn in front of the player or where the player clicks? Its not really clear

 

[etheboi_]

Omg this guy is trying to make fortnite in minecraft.
TRUST ME MAN. DON'T DO IT

But in answer to your question, yes

on right click:
    if player is holding iron ingot named "Wall builder" with lore "Right Click"
    set {_center} to block 1 blocks ahead of player
    set {_top.corner} to block 1 blocks left of {_center}
    set {_top.corner} to block 1 blocks above {_top.corner}
    set {_bottom.corner} to block 1 blocks below {_center}
    set {_bottom.corner} to block 1 blocks right of {_bottom.corner}
    make server execute command "/fill {_top.corner} {_bottom.corner} oak_wood replace air"

This is test code, send me any errors.