The player can drop items. If 2 items collide they should make a new item. The items have a name variable telling the game what they are. How do I check the name of each one separately before deciding what to do when they collide?

If item is overlapping item

item 1 name is "STICK"

item 2 name is "STICK"

Then destroy item (both of them)

Then spawn item and set name to "CLUB"

I have tried sub events but it does not seem to work. I might have done it incorrectly since I am not 100% sure how to structure them though.

> The swapping already works. This was tested before the system got more complex.

>

> However I will take your advice and make a check when something is picked up and run the loop afterwards. I will also try "else" to check if all slots are filled.

>

> Thanks!

Oh okay, what isn't working?

I figured out another way to solve it. If player overlaps an item and picks it up the item is destroyed, preventing actions further down the code. So I just placed each event in order in the sheet starting with if itemslot=3 then itemslot=4 etc.

Like this:

If player overlaps item

Picks up

itemslot=3

itemslot=empty

-set itemslot filled

-destroy item

If player overlaps item

Picks up

itemslot=4

itemslot=empty

-set itemslot filled

-destroy item

If player overlaps item

Picks up

itemslot=5

itemslot=empty

-set itemslot filled

-destroy item

Since the item is destroyed when one of these are true it simply stops the next event since the player is not overlapping item anymore.

After these events I replaced the =empty with =filled and repeated the events but adding the replace actions.

This works nicely since I will not have more than a maximum of 6 itemslots, so code won't be too long. Just thought I'd let you know how I solved it.

> The swapping already works. This was tested before the system got more complex.

>

> However I will take your advice and make a check when something is picked up and run the loop afterwards. I will also try "else" to check if all slots are filled.

>

> Thanks!

Oh okay, what isn't working?

I have not tried it yet since I must take a break and sleep. I am back at it tomorrow :)

Could you just have 3 global variables

On pickup.

Check slot 1.

If global variable=0 then set global variable to uid of object picked up. Else check pickup2. Else check pickup3.

The 3 slots will have uids set to them. And you can choose any object base on its uid

On drop, just set the slot global variable to 0 again

That sure is smart but I currently use instance variables for objects. Will try the "else" method later but must sleep first. Thanks for the simple idea :)

The swapping already works. This was tested before the system got more complex.

However I will take your advice and make a check when something is picked up and run the loop afterwards. I will also try "else" to check if all slots are filled.

Thanks!

Glad you are here lionz! I have tried to put these principles in but I think I am missing something fundamental.

Here is a screenshot of what I have constructed so far. The item on the ground is destroyed but no item appear in the bag when I test. NONE means empty, not NONE means filled. The global variable called "itemslot" is just the current selected one, which should swap a filled slot. This should happen for a selected slot if all slots are filled. Itemslots currently start from 3 and reach 5, since first slots are for specific gear.

picallow.com/events-2

When I pick up an item, I want to fill an empty slot. If I have 3 empty slots upon picking it up, just one of these must be filled instead of all 3.

Since all the slots are same object and differentiate themselves only with a variable (1,2 or 3), I find it hard to check them all at the same time. If slot=1 is empty and slot=2 is empty just does not work since a slot is not both 1 and 2 at the same time. So I need to separate them in conditions and perhaps check them in steps.

My mind want to structure it like this:

if item picked up

slot=1

slot=empty (set to filled and stop checking)

slot=2

slot=empty

slot=3

slot=empty

if item picked up

slot=1

slot=filled (check next)

slot=2

slot=empty (set to filled stop checking)

slot=3

slot=empty

Does sub events solve this? If so, how should I structure it?

Thank you for the explanation! In that case I will make the layer non global and rework some things. It is better that way.

Cheers :)

Excellent. Thank you :)