Can you choose coordinates for the decal placement?

[mathpun]

So I am trying to place the decals in custom locations -- would like to just have a (row,col) coordinate for placing the decals.

I can see right now how I change the decal frequency and control how many I will have (some decimal that is diving into 100) -- but then they are randomly placed. I see that once it randomly places them it keeps that configuration for the maze, no matter how many times I run the maze -- but still doesn't let me place them where I want. So how can I chose where they get placed? Thanks so much !!

Here is where I can see I can edit the decal frequency: /lab/game_scripts/themes in file themes.lua

this line: local decalFrequency = opts.decalFrequency or 0.01

0.01 makes 1 decal, 0.1 makes 10 decals... etc

[charlesbeattie]

Take a look at function theme:placeWallDecals(allWallLocations). It returns a list of decals to be placed and their locations. The number of decals returned is proportional to the number of available locations.

[mathpun]

Wait wait! That doesn’t make sense — where can I just list and (x,y) coordinate though? I see the proportion - if you see my initial question - I listed that I get how I change how many I have - but where can i actually list a location?

On Friday, June 7, 2019, Charles Beattie [email protected] wrote:

Closed #156 https://github.com/deepmind/lab/issues/156.

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[charlesbeattie]

Sorry for closing - The function does not to explicitly expose the decal location for editing from Lua.

The function does provide a list of all walls generated by the maze generator These can be examined. allWallLocations[i].direction is the compass direction of the wall allWallLocations[i].i and allWallLocations[i].j are the cell the wall belongs to.

You could create a list of cell locations to create paintings and store the relevant locations.

Or ...

Take a look at exposing the decals from C++:

deepmind/engine/lua_text_level_maker.cc

Can be extended to expose more of the struct WallArtLocation and allow editing of:

// Corner placement of wall art.
Eigen::Vector3d top_left;

// Corner placement of wall art.
Eigen::Vector3d bottom_right;

Look around this file how to expose and edit values form Lua.

[mathpun]

So just to be clear - I am just trying to chose the (X,Y) coordinate for the decal, where on the actual wall it is at that point doesn't matter.

So if I try the top option -- allWallLocations[i].direction, could you provide an example using some actual values for (X,Y) for a maze that comes with the install as an example so I can see how this works? Sorry still super confused. So I edit that clump of code that you first pointed to -- but which part and how I don't understand. Thanks so much in advance!