I am Jason.
How I found this site out Google Search Engine
Game Maker version I use is Game Maker 8.0 Lite.
Here is how to check
On top vspeed> 0 && y < other.y
On left hspeed> 0 && x < other.x
On bottom vspeed< 0 && y > other.y
On right hspeed< 0 && x > other.x
after y or x + and - is a relative position on the object's sprite.
if ( )
No double enters though.
keyboard_check_pressed(ord("3")) is checking if 3 is pressed
keyboard_check_pressed(ord("Z")) is checking if Z is pressed
keyboard_check(vk_left) if check if left is held down.
< is less than
> is greater than
that is some Game Maker stuff I know
#Upload examples, tutorials, games of Game Maker as well#.