I am creating a map where the player can only step on certain blocks, and if he/she steps off, they die.
How do I run a
testfor where it tests for if the player is on the path, and if the player goes off of the path?
Simple! The command is:
/execute @a ~ ~ ~ detect ~ ~-1 ~ bedrock 0
Where bedrock is the block, and 0 is the damage counter.
After the "0" you can run any command you want! For example:
/execute @a ~ ~ ~ detect ~ ~-1 ~ stone 0 kill @a[c=1]
kill is the equivalent of the /kill @p command
So with this you can do whatever you want with your path!