I would like to be able to place an entity in the world with all the same non-cursor-related features and behaviors as build_from_cursor, such as build modes, fast replacing, placing necessary foundation and tile ghosts, adding to the undo stack, setting the last user, etc. I don't want to use build ...

When a blueprint creates multiple entities, it seems like they are all created in the world, then on_built_entity is triggered for each of them. This means that while one on_built_entity is running, it can see in the world other entities whose on_built_entity hasn't run yet.

I'd like a way to check ...

I specifically want to know whether an entity was created during the current tick, but more generally I'd like to know what tick each entity was created on. And I'd like access to that information when on_built_entity fires, for entities for which it hasn't fired yet.

https://mods.factorio.com/mod/automatic-underground-pipe-connectors

TL;DR: How can I reliably determine when to place concrete and/or ice platform under a new ghost or entity on Aquilo?

The goal of this mod is that when you place an underground pipe, a pipe gets placed automatically in situations ...

Good idea. I agree that just having a script produce some pollution would accomplish OP's stated goals.

I'd like to be able to filter for entities on a particular force dying, rather than checking the force inside my event that fires for all entities dying.

https://mods.factorio.com/mod/RampantFixed?from=search makes the biters a lot smarter. There are a few other mods that greatly enhance biter behavior as well, and add new types of biters (swimming, flying, tunneling, etc).

A quick experiment suggests that having my event remove and re-build_from_cursor the original underground pipe produces good dragging behavior. I'll need to work around a lot of edge cases to make use of that, but it's probably better than giving up on build_from_cursor and going back to a pile of ...

I'd like to be able to, mid-drag, change which entity the game thinks was placed previously for the purposes of figuring out where to place the next underground pipe or belt.

See viewtopic.php?t=129192 for context.

script.on_event(defines.events.on_built_entity, function(event) game.players[event.player_index].build_from_cursor{position={event.entity.position.x,event.entity.position.y-1}} end, {{filter="type",type="pipe-to-ground"}}

1. Install the above mod
2. Place a horizontal row of entities that can't ...

The devs have explicitly rejected this and related ideas a few times on the forums and on Discord.

We just have to keep hoping they eventually change their minds. Maybe posting more use cases will help, as folks think up mods that could be done with this and can't reasonably be done without it.

Reiterating this as I am currently playing Pyanodons mods and I want to search for everywhere I'm producing various fluids.

I recently discovered that pyanodons mods define some tank entities with pipe connections that have small offsets from my expectations, +/- 0.4 or 0.7 from the usual centers of tiles. https://github.com/pyanodon/pyindustry/blob/687440864ddbc995ca784533b678fb6c351535b4/prototypes/buildings/fluid ...

It looks like the original location is still empty/available later in the same event, so I was able to save and restore hand_location around my cursor manipulations. thanks!

I have a blueprint in my inventory. I click it, to put it in my cursor. The slot in my inventory now has a hand icon, reserved for the blueprint to return to. I click in the world to place the blueprint. At this point, my mod event triggers and it does some manipulation of the cursor item stack. The ...

I attempted to load a Space Age save from 5 months ago (not sure the game version then) with Pyanodon's mods enabled and Space Age disabled. One of the loading progress bars appeared but then the game crashed out.

Attached are two saves a few hours(?) apart in my history, the earlier one doesn't ...

Dev locked the bug report because *some* of the interfaces show non-item signals/etc, without addressing the factoriopedia

In addition to frequency, it would probably make sense so ensure the starting resources appear in the starting area on each planet on a ribbon world. I endorse this addition to my feature request.

MacOS doesn't have system-level standards for this sort of cursor behavior. It was one of the worst parts of using the OS for me. There are 3-5 different common key combinations that move to the beginning of the line or top of the document (and the latter has no shortcut in many places), and no way ...

What Muche said.

Also, the specific keys aren't really important. I'd expect them to be configurable keybinds, or at least OS-specific, and I could get used to emacs or vi keybinds instead if necessary. The real request here is to have the functionality at all.