Yanfly's Skill Cost Manager and Selchar's Item Charges

[Mawichan]

Hello there! I have a question about custom skill costs for Yanfly's Skill Cost Manager ... (github link).
I'd like to create a skill for bow/crossbow-type weapons that costs arrows/bolts.

I know how to make a skill use items as "fuel", however, I'm using Selchar's Item Charges... (google drive link). This means I have Tsukihime's Instance Items as required by the former. With Instance Items, every single arrow appears as a separate element in the inventory, instead of stacking together, so I'm worried it will make the inventory be messy and cluttered, considering how many arrows the player may need to carry around.

I figured that it would be more convenient to have the player carry a quiver as a single item, and the arrows it carries would be represented by charges. Then the bow skills would have to cost one charge of the item, and not the instance of the item itself.
Now the question is, how do I set that up?

For example this is how to set the skill to cost an item via skill notetags

<custom cost requirement>
$game_party.item_number($data_items[1]) >= 1
</custom cost requirement>

<custom cost perform>
$game_party.lose_item($data_items[1], 1)
</custom cost perform>

But how do I make the skill cost one charge of an item? What do I write instead of "$game_party.item_number($data_items[1]) >= 1" and "$game_party.lose_item($data_items[1], 1)"?

Well, that's all I want to know, thank you for your time.

 

[Mawichan]

EDIT: Good sir Selchar helped me and wrote how the appropiate notetags should be. Everything seems to be working fine now, so I'll get this thread closed. But not before quoting Selchar's solution, for reference for future users who may be looking for achieving something similar.
----------------------------------------------------------------------------------

*reads other thread as well* Under the assumption that the item(quiver) would simply be in your invenory the following should work.

Code:
<custom cost requirement>
$game_party.find_instance_item($data_items[X])
</custom cost requirement>

<custom cost perform>
$game_party.consume_item($game_party.find_instance_item($data_items[X]))
</custom cost perform>
The above of course doesn't work properly(negative charge o.o) if you use the <no charge keep> notetag but in the event that you do use it then add the following to the bottom of my script.

Code:
class Game_Party < Game_Unit
def find_instance_item_wc(template_item)
container_list = item_container_list(template_item)
return container_list.find {|obj| obj.template_id == template_item.template_id && obj.current_charge > 0 }
end
end
Then use...

Code:
<custom cost requirement>
$game_party.find_instance_item($data_items[X])
</custom cost requirement>

<custom cost perform>
$game_party.consume_item($game_party.find_instance_item($data_items[X]))
</custom cost perform>
In both cases X would be the ID of your item who's charge you wish to consume.

Once again, thanks a lot to Selchar, praised be him and his projects. And I hope this gets to help others in a similar situation.

 

[Kes]

[closed]IgnoreMe[/closed]