Time  Nick           Message
15:47 deltasquared   another daft question time: how do I make it so that an entity does not have a selection hitbox, but still has a collision box?
15:48 deltasquared   would that be the physical attribute (but I still need it to collide with other entities)
15:51 deltasquared   essentially a player is attached to it and the collision box has to include their head, but I wish for players to be able to point at things outside of it in any direction
15:51 deltasquared   in other words, it shouldn't really be selectable
15:52 deltasquared   I'm not sure from the manual's wording which attribute this would be
15:52 deltasquared   physical = false seems like it would do it, but apparently then other objects don't collide with it from the comment on collide_with_objects
15:55 deltasquared   wait scratch that, physical isn't what I'm after
15:55 deltasquared   hmmm
15:56 deltasquared   ... ah, is_visible does it
15:56 deltasquared   but then one will not know it's there. guess I'll have to use a nametag instead
15:58 deltasquared   oh great, but then the player becomes invisible as well
16:06 paramat        maybe a selectionbox of size 0,0,0?
16:07 deltasquared   paramat: you can set cbox and sbox independently?
16:07 deltasquared   if you can, it's not documented
16:07 paramat        i think so
16:08 deltasquared   ok, where do I go in the source code to see where it reads the object property table
16:08 deltasquared   actually, let's try grep -FR collisionbox and see what comes up
16:08 paramat        https://github.com/minetest/minetest/blob/6bd4cb9f7e83afaf16c11a1b5451753144c6521c/doc/lua_api.txt#L5214
16:09 paramat        the 2 boxes have been independent for years
16:09 deltasquared   paramat: oh, I see it there, is that in stable though
16:09 deltasquared   hmmm
16:09 deltasquared   pointable = false, that looks handy
16:09 paramat        oh, maybe 'pointable = false'?
16:10 paramat        in stable yes
16:12 deltasquared   paramat: I've just tried both properties on 0.4.17. no dice
16:16 deltasquared   ah, there is a feature flag, let's have a look at that... minetest.features.object_independent_selectionbox
16:17 deltasquared   nope, flag not there on .17
16:17 deltasquared   welp, that's going to be annoying
16:18 deltasquared   why do such useful core features always seem out of reach...
16:20 Krock          deltasquared: update to 5.0-dev
16:21 deltasquared   Krock: kinda hard to tell a server to do that ;)
16:21 Krock          yes, because the server won't listen to anyone
16:21 deltasquared   besides, it's called -dev for a reason surely
16:23 deltasquared   Krock: alas, try persuading BillyS to do that. I think that argument would be shot down with two words: android users
16:24 Krock          I know that argument. Servers would be empty without android players because they seem unable to install a development apk
16:24 deltasquared   too much of a hassle to ask the average user, apparently...
16:25 deltasquared   if the majority of clients won't do it, the servers won't do it, and that leaves me without a target audience for mods, at which point there's no cause for me to do anything at all
16:25 deltasquared   so I have to stick to stable >_>
16:25 Krock          brb
16:26 paramat        hm ok i thought pointable = false for entities wasn't a new feature
16:27 deltasquared   paramat: I would have thought that for many things which would seem obvious to have from the very beginning, but alas no.
16:29 deltasquared   huh, there was one thing that came to mind... I've forgotten it now. I retract that statement until I can recall the example
16:48 paramat        well :) all good ideas seem obvious to have from the beginning, it just takes time to add them
16:49 deltasquared   it's not like the entity is cripplingly broken without it, just that players won't be able to interact with things while attached
16:50 deltasquared   for reference, it's a physics entity of sorts, meant to allow players to be thrown about
16:50 deltasquared   anyway afk dinner
17:37 Krock          paramat: right, "pointable" is also a 5.0-dev feature, but was added quite early after 0.4.16
17:38 Krock          deltasquared: if it's just about making them not pointable, then attach the object to another
17:38 Krock          and also add pointable = false to make it work with 5.0-dev
17:39 deltasquared   Krock: but then, the other entity would have to possess an appropriate cbox. back to square one
17:39 deltasquared   due to what I'm doing, I can't use offsets and such
19:35 Alexand{er|ra} The people in #Lua aren't very helpful, so I guess I'll ask here too. Is there an easy way to find the intersection of two patterns?
19:35 Alexand{er|ra} I'm trying to find what drop combinations are possible using the tool-dependent pattern matching.
19:41 sfan5          what is a "pattern" in this case
19:43 Krock          string.find/match probably
19:47 Alexand{er|ra} sfan5: It's used by string.find(). Specifically, it's this feature: <https://github.com/minetest/minetest/blob/master/builtin/game/item.lua#L219>.
19:58 deltasquared   Alexand{er|ra}: intersection... is that which matches both patterns?
19:59 deltasquared   or specifically the subset of a string matching both... that would be beyond my knowledge of regexes
20:04 Alexand{er|ra} deltasquared: Yes and no. I only need to know if there *is* an intersection, as well as if there is a diversion between the two. I don't neen to know the exact intersection. But yeah, it seems rather complicated.
20:09 deltasquared   Alexand{er|ra}: if there is only one match in the string, it would be easy, test both patterns, then see if the ranges overlap
20:10 deltasquared   I think
20:10 deltasquared   not too sure
20:10 deltasquared   if there are multiple matches, you'd potentially have to test each range of one with every other range in the other
20:10 deltasquared   O(m*n). oof
20:11 deltasquared   Alexand{er|ra}: at this point I have to enquire what it is you're trying to achieve to wind up with such an arcane task heh
20:13 Alexand{er|ra} deltasquared: I'm trying to predict what drops are possible, then use those drops for gathering digging stats. I recently found out about this tool-specific matching in Minetest, so now I need to update my minestats mod to account for it.
20:14 deltasquared   hmm, beyond my head right now then
20:15 Alexand{er|ra} Yeah, unfortunately beyond mine as well.
20:16 deltasquared   I wouldn't mind investigating further but currently my head is full of haskell
20:16 Krock          maybe try finding an easier/KISS approach?
20:17 Alexand{er|ra} Krock: What easier approach will result in the correct answer every time?
20:17 Alexand{er|ra} I've got a simpler solution, but it gets the wrong answer at times.
20:28 Alexand{er|ra} Hmm. Maybe I need to break complex patterns into multiple simpler patterns, such that if something matches any of the simpler patterns, it necessarily matches the original pattern, and if something does not match the original pattern, it necessarily doesn't match any of the simpler patterns.
20:29 Alexand{er|ra} If I do that in such a way that I eliminate certain regexp characters, it might make finding pattern overlap easier.
20:35 Alexand{er|ra} Oh, lovely. Lua has locale-dependant modifiers in its regexp syntax. I don't think I have any way to account for that.
20:38 Alexand{er|ra} Actually ... I think Minetest would protect me from most questionable characters. Only certain characters are even allowed in item names. Unless the ":
20:38 Alexand{er|ra} Actually ... I think Minetest would protect me from most questionable characters. Only certain characters are even allowed in item names. Unless the ":" syntax overrides the check. I think it might.
20:54 Alexand{er|ra} Actually, breaking patterns up won't work either, now that I think about it. I'd hoped to eliminate things such as character classes, but with the "*" modifier, I can't break character classes down into something finite.
23:30 MinetestBot    02[git] 04paramat -> 03minetest/minetest: texture_packs.txt: Add information for leaves texturing (#7637) 1303f89e8 https://git.io/fNb39 (152018-08-13T23:30:13Z)