sticker related APIs

[Mooncat]

Request: APIs to know the existence of sticker on entity, and also add or remove sticker on it.

I'm looking for
LuaEntity::has_sticker(name) → boolean
LuaEntity::add_sticker(name)
LuaEntity::remove_sticker(name) → boolean (whether the entity had the said sticker so it is removed successfully)

There is so much potential for the sticker system.

[posila]

It is already kind of possible.

Add sticker to biter

Code: Select all

biter.surface.create_entity{ name="slowdown-sticker", position=biter.position, target=biter }

Remove all stickers from biter:

Code: Select all

for _,e in pairs(biter.surface.find_entities_filtered{type="sticker", area=biter.bounding_box}) do 
  e.destroy() 
end

You got the idea.

[Mooncat]

Wow, that's great! Don't know the "target" parameter can be used for sticker.

hm... I wonder the performance impact of using find_entities_filtered to remove stickers. Really not a fan of using such a search function since you already know the sticker is on the biter.
But yes, I can use this before the actual implementation. Thanks!

[Rseding91]

Wow, that's great! Don't know the "target" parameter can be used for sticker.

hm... I wonder the performance impact of using find_entities_filtered to remove stickers. Really not a fan of using such a search function since you already know the sticker is on the biter.
But yes, I can use this before the actual implementation. Thanks!

For such a small area a bounding box search vs a position search is almost identical performance wise.

I think biters already keep track of what stickers are attached to them so I'll just add the ability to read stickers off a biter for 0.15.

[Mooncat]

Wow, that's great! Don't know the "target" parameter can be used for sticker.

hm... I wonder the performance impact of using find_entities_filtered to remove stickers. Really not a fan of using such a search function since you already know the sticker is on the biter.
But yes, I can use this before the actual implementation. Thanks!

For such a small area a bounding box search vs a position search is almost identical performance wise.

I think biters already keep track of what stickers are attached to them so I'll just add the ability to read stickers off a biter for 0.15.

That's awesome! Thanks!

[Ranakastrasz]

Huh. I wonder if this would work for the player. If so, would work great for several buff-like animations I want to display.