Testing what a player says
I would like to make a minecraft map where command blocks say would you like to go to lava parkour? Then if you say yes it will tp you if you so no nothing happens. I was thinking it's probably a /testfor @p/say"yes" or something I'm in the latest snapshot it is probably no something possible but I would like to try
Best Answer
Building on DatEpicCoderGuyWhoPrograms' Answer (and stealing his json for tellraw), you can use trigger to circumvent needing OP permissions to teleport on click. They have to be enabled for a player (done via commandblock), who can then use the /trigger command to modify his score once, then the trigger is disabled again.
Tutorial
Set up a trigger objective (once) using
/scoreboard objective add <name> trigger
Use two command blocks with
/scoreboard players enable <player> <name>
/tellraw @a {"text":"","extra":[{"text":"Would you like to teleport?","clickEvent":{"action":"run_command","value":"/trigger <name> set 1"},"hoverEvent":{"action":"show_text","value":"Teleport?"}}]}
The teleport itself is done via a command-block hooked to a clock, using
/tp @a[score_<name>_min=1] <x> <y> <z>
Replace all values in <> with the appropriate values.
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