not_colliding_with_itself does not appear to function under certain conditions

[killzoms]

used Collision mask that collides with a different Entity with a duplicate collision mask

Code: Select all

collision_mask = {
    layers = {
        player = true,
        car = true,
        train = true,
        is_object = true,
        layer_52 = true
    },
    consider_tile_transitions = true,
    not_colliding_with_itself = true
}

The exact example where this comes into play is with the [Mobile Factory](https://mods.factorio.com/mod/Mobile_Factory_zoms/) mod, at the moment I have removed the Player collision layer(not ideal) and added the water_tile layer, this of course causes it to collide with Belts which is no fun and does not allow crossing shallow water(as expected)

[boskid]

So what are the conditions where it does not work?

[killzoms]

When attempting to place the MF Deploy entity that has the same collision mask as the Mobile Factory entity, having the player collision mask layer enabled causes not_colliding_with_itself to not function.

Code that copies the collision mask is

Code: Select all

local MobileFactory = data.raw.car.MobileFactory
local MFDeploy = data.raw["simple-entity-with-owner"].MFDeploy

MFDeploy.collision_mask = table.deepcopy(MobileFactory.collision_mask)

while code that declares the collision mask is

Code: Select all

mf.collision_mask = {
    layers = {
        player = true,
        car = true,
        train = true,
        is_object = true,
        layer_52 = true
    },
    consider_tile_transitions = true,
    not_colliding_with_itself = true
}

with mf being a copy of the tank

if the player collision layer is not enabled then not_colliding_with_itself functions as described. I suppose I should mention this is all done in Factorio's latest steam update

[boskid]

So let me summarize your findings: you have two collision masks that have non equal set of layers (one has player layer while other one does not) and you are claiming that not_colliding_with_itself which requires equal set of layers is not working. Do you see your problem?

[killzoms]

boskid, The collision masks are equal, the collision mask of MF Deploy is set directly with a deepcopy of the collision mask of Mobile Factory.

Player is set on both. The only reason I mentioned Player is because I tested with player set and without it set on both since MF Deploy's collision mask is just a copy of Mobile factory's collision mask.

[boskid]

Can you show the relevant collision masks as they are seen by the game in prototype explorer (ctrl+shift+e while in game then navigate to related prototypes and show their collision masks)?

[killzoms]

Here are the relevant collision masks. Where did Vehicle come from?

[killzoms]

I see. Alien Biomes changes the collision mask layers on all cars if they have the player layer.


Disregard this topic, Did not realize a mod adding additional biomes would additionally modify all CarPrototypes.