Logic / Nesting

echoink

Can someone help me with some basic command nesting?

My game is working well enough, but I'm noticing some quirks in my logic. For movement, I have four basically similar commands

Group: Movement

Right Move Rule
When all of the following
when right arrow key is pressed,
if self position is X
move in direction
constrain self.rotation to...
animate

Left Move Rule
When all of the following
when left arrow key is pressed
if self position is X
move in direction
constrain self.rotation to...
animate

so on an so forth for the up and down arrow keys.

The constrain self.rotation, and the animate are redundant, and for that matter, I it seems an "if any" conditional would work better.

Something like this:

Group: if any: key press right, key press left, key press up, key press down)
Group do: (move in the direction arrow is pressed, constrain self.rotation, animate

But I seem to be placing the constrain self.rotation and the animate int he wrong spot because when I try to group them in a way that seems more efficient, things break.

tatiang

What are you constraining self.rotation to and how are you animating? In other words, is the constraint value and the animation relative to the direction the actor is moving?

If you want a behavior to function independently of a rule, just don't place it in a rule. But I suspect that's not what you're going for. If you want a behavior to function when any movement key is pressed, then you would do this:

When key right is down
     change attribute self.moving (boolean) to true
Otherwise
     change attribute self.moving to false

Do that for each of the four keys/direction. Then have a single rule:

When attribute self.moving is true
     Constrain rotation
     Animate