picking an object at random from a restricted zone

[Larry]

At at loss for how to code this.

There's enemies galore all over the screen.

Occasionally, I want MMF to pick one and have it shoot at the player, but only if they're within a certain zone (in this case, the lower half of the screen).

How to restrict the zone?

I can't think a way to code this:

* Every 1"
* Pick object at random as long as that object is within zone XX,YY

Grateful to any who comment.

[Francois]

You have the condition "Pick a random object in a zone". If you want only one type of objects (if you have different objects in the zone), do :

Every 1
Pick "Object" at random
"Object" lays in zone (xx,xx) to (xx, xx)

This should work...

[Larry]

Thank you very much, Francois.

But in that case, can you answer another question for me?

How would you code pick an object at random as long as it's within XY of an active object's action point?

I guess what I'm asking now is how do you code "pick an object that is within a radius of another", or reasonably close to another.

Let's say the player's sprite can go all over the screen.

And you want the mushrooms to spring to life if the player gets near. The only problem is that the mushrooms wander all over the screen as well.

In that case, have mushroom shoot something if player gets near it? All this can happen in different areas of the playfield.

How?

[Popcorn]

There is a very simple solution for this:

Have a large round invisible object on top of the player that has a radius of your choice. Then just test this object for overlapping with another object to make them move or shoot.