How to setblock snow_layer only if block below is a full-block?
Or is there actually any way to do that?
Basically I do a /setblock ~ ~ ~ snow_layer at the player but if it's above something that snow layer can't be on (eg. slab,sign,grass) it just looks buggy. :/
I could avoid it with causing a block update right after creating it.
Any idea is helpful even if you're not sure if it works or not! (best would be a one command block method)
As you can see on the picture looking for {OnGround:true} doesn't solve it all the time:
UPDATE:
I could do a /setblock above it, but that may remove other block, so I'm looking for a safer idea.
UPDATE 2: Changed title to represent the problem more clearly.
Best Answer
After trying many things, I finally came up with a solution that works all the time (I hope) and doesn't change any block:
Instead of creating the snow layer with:
/setblock ~ ~ ~ snow_layer
I use the command:
/summon FallingSand ~ ~ ~ {Block:"minecraft:snow_layer",Time:1,DropItem:false}
wich does the job quite well, and because of DropItem:false it doesn't even drop the snow if placing it fails. :)
NOTE:
Summoning falling sand at the same block where there's an existing one will cause it to be deleted, so only summon the sand if there's air! In my example:
Summon FallingSand that become a snow_layer AT every player:
/execute @a ~ ~ ~ detect ~ ~ ~ air 0 /summon FallingSand ~ ~ ~ {...}
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Answer 2
I could do a /setblock above it, but that may remove other block, so I'm looking for a safer idea.
The /setblockcommand allows for an old block handing mode of "keep", which means that it will only replace air. Because of this, we can safely use a block that will immediately turn back to air (like a snow_layer) to cause a block update. Running a command like this at the same time as your current one should fix things:
/setblock ~ ~1 ~ snow_layer 0 keep
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