Flash Tutorials

hello guys. just give me a private message if you are stuck with something :P

Walls don't work, Flash keeps telling me, "Operator '-' must be followed by an operand" on both right and Bottom walls.
Right wall:
onClipEvent(enterFrame){
if(this.hitTest(_root.char)){
root.char._x- = 10;
}
}
Bottom wall:
onClipEvent(enterFrame){
if(this.hitTest(_root.char)){
root.char._y- = 10;
}
}

walls and aiming* sorry

moves and aiming aren't working...

@tijs14tijs as2 is easier than as3