Exchanging items for a party member

[Qwilfish]

I'm working on a game where you can exchange certain items for different monsters to join your party. I managed to do it (kind of) by using conditional branch> if player has 1 Fire Scroll> Fire Deamon joins the party.

The problem is that, that way, you can only exchange 1 item for a monster, while I need it to be more like:
If player has 20 Fire Scrolls> Fire Deamon joins the party

I'm new to RPG Maker and I have no idea how to do it.

 

[Andar]

Use control variables to get the number of items in inventory, then use conditional branch on the variable.

 

[Qwilfish]

EDIT: Ok, I realised I didn't turn on the conditions. That solves everything, thank you for your help!


Alright, so I managed to make an NPC that gives +1 Bat Wing variable each time you talk to him, and then I can exchange it for a Bat Monster with another NPC.

But I can't seem to be able to make Bat Troops to drop Bat Wings Variables?

I made bat troops to add +2 variable:

And then made an NPC that trades bat wings for a Bat:

What am I doing wrong?

 

[TWings]

Actually what Andar was suggesting is much more simple.
Taking your example, on your exchange NPC do :
- Variable 4 = Number of bat wings (select game data, item bat wings)
- if variable 4 = 3
...
So you don't need to bother feeding your variable 4 everywhere, just when checking with the npc.

 

[mlogan]

And if you're doing that with the troops to get bat wings from a battle, you want to use the Enemies tab instead, and make it so that the Bat enemy drops bat wings.

 

[Andar]

@Qwilfish and the reason why your troop event didn't work is because you told it to never work: "don't run" means "never executed this event", that running is a Computer term that has nothing to do with escaping.

 

[Qwilfish]

Actually what Andar was suggesting is much more simple.
Taking your example, on your exchange NPC do :
- Variable 4 = Number of bat wings (select game data, item bat wings)
- if variable 4 = 3
...
So you don't need to bother feeding your variable 4 everywhere, just when checking with the npc.

I tried it again but I can't understand what am I supposed to do, I end up with the same thing all the time

@mlogan
That's what I was trying to do from the beginning, but I couldn't figure out how xD

@Andar Yeah, I figured it out after I posted it, thanks!

 

[Andar]

@Qwilfish you check for exactly 3 bat wings, which means the conditional branch will not only fail with less than 3, it will also fail if the player has four or more bat wings.

 

[mlogan]

You control the item drop on the Enemies tab, like this:



And as Andar said, change your batwings check to > or equal to; it looks like the > with a line under it.