I want an event to follow the player but to avoid the unpassable tiles, but I don't know how. If someone knows, post here.

If it is a teamate, you could use Zeriab's Catterpillar script :
http://forum.chaos-project.com/index.php?topic=1675.0
If you mean any event, you would need to get someone to make a Ruby script for you.

OR
you could use this, glitchy way i thought up.(they cant talk to you when you try to talk to them)


1)Set speed to 5
2)Set freq to 6
3)make it player touch
4)set ype to custom
*in that do this*
use the
"Move toward Player"
a few times
5)you must set that to repeat
6)on the events you must make it look like this


@>Set Move Route: This event
: :$>Through ON
: :$>Turn toward Player
: :$>1 Step Foward
: :$>Turn toward Player
: :$>Through OFF



i also made a file that has it like this if you want to see it,Right Here (this is for RMXP)(i could still TRY to help if you need RMVX)