Any way of optimising sprite count?

Hello.

My game has an inventory system. This system uses 4 sprites:

1. The item itself in the slot;

2. The item as a drop on the ground;

3. The item that attaches to the cursor when I drag it;

4. The item that the traders sell.

Is it possible to create one "parent" sprite so that the rest take animation frames from it?

I'm not sure I understand it exactly, but Skymen made this addon that allows the object to always use the image of another object:

construct.net/en/make-games/addons/933/empty-shell

so you can basically set a source object and the empty shell will copy from it

You can use an instance variable, that contains the "type" or "state" of each instance of the sprite, which you can use to pick and apply specific events to. Then you would only need one sprite object.

So you're saying that you created 4 individual sprite objects, 1 for each task?

Yes, you can create 1 sprite object with different animation frames instead. If that's what you're referring to as "parent".

Set Animation Speed to 0, and create as many animation frames as you want.

You can then set the animation frame of the sprite instance on your layout for each of your tasks.

That way you can have X individual graphics, which only uses 1 sprite object.