direction detection (goomba behaviour_

so, i'm making a game called "Super luigi" (super mario, but with luigi), and i'm having trouble with the enemies. i need to make it so that when i jump on the goombas, they die, but if i run at them from the sides, i die. i wrote up some scripts, but the siderun script always activates. any tips?

Add a condition that requires you to be moving down (Y speed positive, but depends what movement behavior you're using)

i'm using the platform behaviour, and i used the event:

if player collides with goomba |       set goomba animation to "die"

and                            |       wait 3 seconds

player is falling              |       destroy goomba

i also made an event for getting hurt.

if player collides with goomba|

and

player is on floor                   (death, destroy, and reload actions)

bump.

I've tried the Y axis thing, but it still doesn't work.

here's my capx. feel free to play with it and whatnot, if anyone can fix my problem and re-upload the capx for me, it would be much appreciated :D

docs.google.com/file/d/0B905DbBSgkoqeEFRVXFOZnZxbW8/edit