FOSS gamedev and creative worlds

How can I create a mob which walks around water when chasing the player?

wuzzy - use the 'pathfinding = 1,' setting in mobs registry to have it pathfind player and climb/avoid obstacles, also setting to 2 allows mob to break down doorways and build to find player. I have avoidance settings to add as yet also.

OK, thanks. This solved my problems.

Is there a way to make mobs go to a specific place? (like the inside of a building if it is night-time)

you could use do_custom to check time and have a pathfind function to move mob towards a pos.

TenPlus1 I've had several players question me about the lava flans. In their relentless quest to posses a Lava Pick they've been wanting to collect lava orbs that can only be gotten by the hunting of Lava Flan. They've been frustrated because after finally finding Flans, they've noted that are dying long before they can even get a selection box on them. It's true. I can watch them spawn in the lava as expected and then immediately I can watch their health start to fall. And then they died. Most cases, less than a second.
I'm pretty sure I haven't modified anything, nor have anything in my minetest.conf added to cause this. Has lava changed somehow in very recent Minetest-dev to cause this? I can't figure this out.

Question about mob behaviors- I'm trying to make a new "skittish" tag for mobs (so to speak) that makes them run away from the player once they spot the player. I've tried copying and modifying some of the existing code in API.lua, but no luck. I'm a bit code-dumb, so any help would be appreciated. I'd imagine this would be a useful feature altogether for other modders, too.

I started by adding



to the mobs:register_mob function.

Next, I added



by copying similar code for "runaway when punched" in the do_states function.

Then I added mob_scared



Added



to the mob_step block

Copied "do_attack" function:



Lastly, I added "skittish = true," to the bunny.lua.

It doesn't crash, but it just... doesn't work. What am I doing wrong? Or is there already a way/a better way to achieve the same effect?

ExeterDad - I've fixed that problem now, lava flan should swim around happily inside lava for now.

TenPlus1 wrote:ExeterDad - I've fixed that problem now, lava flan should swim around happily inside lava for now.

Woot!! Thanks Man! Didn't expect you to go through the trouble of fixing. I was just hoping for a clue of what to do.
Now we can see just how fast they can tear the place up with the Lava Pick. :)

Update:

- Added new animation function to handle built-in AND custom animations for mob e.g.

walk_start = 16, walk_end = 24, walk_speed = 15,
punch_start = 16, punch_end = 24, punch_speed = 20,
twerk_start = 25, twerk_end = 40, twerk_speed = 3000,

- New replace function added which can use tables e.g.

replace_what = {"default:grass_3", "default:grass_4", "default:grass_5"},
replace_with = "air",
replace_rate = 10,
replace_offset = 0,

... now becomes:

replace_what = {{"group:grass", "air", 0}, {"default:dirt_with_grass", "default:dirt", -1}},
replace_rate = 10,

... and adds additional node checks with their own y_offset :)

TenPlus1, I am suggesting to you to add these new mobs:
https://drive.google.com/file/d/0B4HNak ... sp=sharing

FreeLikeGNU wrote:

wut?

Andrey01: most of those mobs already come as an addon-mod for mobs redo, no point making this mod any larger than it has to be :)

TenPlus1 wrote:Andrey01: most of those mobs already come as an addon-mod for mobs redo, no point making this mod any larger than it has to be :)

No, SandWorm and Bacteriophage don`t have in other mods for mobs redo because they were removed

Sandworm and Bacteriophage should both me in the nssm mod.

Update:

- New setting added for "dogshoot" attack mode which adds a new timer between shooting and dogfighting.
- Code tweaked, tidied and bugs fixed

TenPlus1 wrote:Sandworm and Bacteriophage should both me in the nssm mod.

Sand Worm and Bacteriophage were removed from NSSM and old versions of these mobs don`t return yet.
Also i suggest you to add huge Black Widow (see to link for download)

Hi Tenplus1,

I have an issue I'm not entirely sure it's related to mobs_redo, but I think it does. So far, I have been using "mobs:spawn()" an setting "on_spawn" to a rather large funcion that initializes a lot of variables for the mob. These variables reside on the same scope of the rest of the "self" variables, like "self.tamed".

However, I want to create a custom spawner method, and I have been doing so using the following code:



Now, this works well when spawned initially. However, if I close the game and restart it, all the variables added in the "spawn(npc, pos)" function get lost! And actually, the ones added by the mobs_redo definition remain (like path, time_of_day, etc.). This didn't happened when I used the "mobs:spawn()" function, no matter how many times I restarted the game.

Any ideas? If you meed to look more at the code you can find it here: https://github.com/hkzorman/advanced_npc/blob/master/spawner.lua. And sorry if it's not related and maybe a bug in Minetest.

Thanks in advance!

Mobs themselves only save variables beginning with self. and that's it, anything else you add has to be saved either in a file or setting.

I tried to make npc's return to a previously set postion.

This didn't seem to work at all. How can I make a mob go to a certain position? is there a better way to do this than trying to get it to follow an entity?

Sadly mobs aren't that smart but in the api we have a mob variable called self.path.way which contains the pathfinding data for a mob to find and get to the player when attacking, and this could possibly be modified to a HOME position instead if mob has pathfinding enabled :)

Oh ok, thanks.
I did have a look at that, but I don't really understand it.

TenPlus1 wrote:Mobs themselves only save variables beginning with self. and that's it, anything else you add has to be saved either in a file or setting.

Yes, I had them all there.
For some reason, it looks like my world was corrupted. I have deleted it and created a new one and it works perfectly.

Thanks!

TenPlus1 wrote:Sadly mobs aren't that smart but in the api we have a mob variable called self.path.way which contains the pathfinding data for a mob to find and get to the player when attacking, and this could possibly be modified to a HOME position instead if mob has pathfinding enabled :)

I also don't understand exactly how this works. Do you specify the ultimate position, or do you have to specify all the positions in the path to the point that you want? What would be the variable that represents the "goal position"?

self.path.way holds the pathfinder table which is a result of the minetest.find_path() function that provides the mob with a list of positions to follow until it reaches the player it wishes to attack... I am looking into a way of overriding this feature so that a home position can be given and it will do the same until the mob/npc returns home, that and keep the api light :)

Update:

Mob pathfinding level 2 has been tweaked so that they can break through walls and build up to get to player (not through hard nodes like obsidian etc)

D00Med, maybe this will help, it's a small routine that sends the mob to a specific position at night time:

Can you tell me why mobs jump when they start to follow a path?

They do ? which mod, what's it standing on at the time ?

TenPlus1 wrote:They do ? which mod, what's it standing on at the time ?

mobs redo and mobs monsters, relatively new versions. I'm tinker around with the oerkki for a new pathfinder. Every time he starts to follow a path he makes a little hop (not a normal jump)

I think the hops are the pathfinders way of making the mob unstuck if it gets stuck at some point.