Experimenting with these blocks in my mod made me come up with some interesting concepts.
The first thing to bear in mind if you're gonna build a puzzle like that is to come up with a way to prevent people from jumping with the party on the boss monster making this entire endeavour futile. So it's gonna be harder to pull it off creating something like this.
And you will probably have to rebuild your arena.
Now the pushable blue block floors can be placed anywhere under the blocks. You can place them at -7 height and the pushable blocks will still work at height 0 or 1 This way you can push the block everywhere in activated form without having to deal/look at blue floor lights.
Same for the orange trigger spots.
The orange trigger spots have a floortrigger component "TriggeredByMonster"
So basically you push the activated hovering block where you pushed it now hovering still in activated form on height 1
As soon the monster walks under it, the monster itself will trigger the orange floortrigger and the block will deactivate.
Now there is 2 ways to proceed. If anyone can make a custom block with an additional gravity component that's disabled by default.
You call a delayed call that the monster dies at the same time the gravity component of the block is activated. This way the ruined illusion like Isaac mentioned can be mitigated. They're magic blocks anyways
The block deactivates, the lights go out, the block loses its "magic" and then it falls.
Pushing a deactivated block that probably weighs a few ton isn't realistic at all
Or at the moment the downward momentum of the block deactivating animation, just call in monster.die
and then spawn a block on height 0 while making the block on height 1 invisible/destroy
Another alternative is to simply build an arena where you move the blocks around on height 0 trapping the boss while it's standing on some furnace floor grating that occassionally spawns fire or spawns fire with the press of a button when all blocks are at the designated tile. This will make the boss fight slightly more interesting as you have to dance around the arena getting the blocks in the right position and then lure it in before moving the last blocks in place.
