Is tile placeable at position

[Perlin]

Hello,

I want to place Concrete automatically, but only on placable tiles. There is a "can_place_entity" function in documentation, but I would like to achieve the same thing for tiles. For example I want to prevent my code to auto-build on water tiles.

I can do :

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if surface.get_tile(position).name ~= "water" then ...

but I would prefer to do something more portable, in case some other mods add non buildable tiles like water.

How can I achieve this?

Regards

[darkfrei]

https://wiki.factorio.com/Types/CollisionMask

All concrete tiles cannot be placed near water while:

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data.raw.item.concrete.place_as_tile.result = "concrete" 
data.raw.item.concrete.place_as_tile.condition_size = 1 
data.raw.item.concrete.place_as_tile.condition[1] = "water-tile" 

All water tiles have this collision mask:

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data.raw.tile.water.collision_mask[1] = "water-tile" 
data.raw.tile.water.collision_mask[2] = "item-layer" 
data.raw.tile.water.collision_mask[3] = "resource-layer" 
data.raw.tile.water.collision_mask[4] = "player-layer" 
data.raw.tile.water.collision_mask[5] = "doodad-layer" 

[Perlin]

Yes but how can I test this programmatically ? How can I do something like :

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if allowed_to_build(concreteTile, position) then ...

Because I need to test if I'm allowed to build Concrete on a specific tile (E.g. true for ground, false for water) before I do a surface.set_tiles().

On the game we can see when we can and when we can't (see below), just need to do the same with code.

The collision mask is not enough because there is also the "condition_size" parameter (how close from water can I build, if I'm right).

Thank you

factorio-tile.png (505.35 KiB) Viewed 1674 times

[darkfrei]

I haven't tested it, but try #LuaSurface.get_tile_properties

You can always get tile with #LuaSurface.get_tile and then get prototype of this tile with #LuaTile.prototype or get bool with #LuaTile.collides_with

Now I see no way to get tile.place_as_tile.condition = {} on the control stage. It must be defined in LuaTilePrototype but it is not here.