Functions to access tile maps content

[D8H]

Applications with access to tile map content

Doors

Some obstacles could be removed from the tile map to open a way.

Dynamic world

Handling dynamic worlds like MineCraft would be easier and more efficient using a tile map object.

Terrain generation

• A marching square behavior could be attached to tile map object to render a terrain with water and mountains https://www.omiod.com/docs/pdf/Squares-Made-for-Marching.pdf

• Terrains can be generated with gradient noise https://www.redblobgames.com/maps/terrain-from-noise/

Terrains can be modified with basic actions like in city builders to level an area or make it higher...

It would probably be easier and more powerful than using one instance per cell like this tutorial does: https://wiki.gdevelop.io/gdevelop5/tutorials/procedural-generation/implementing-procedural-generation

Functions to access tile maps content

This refactor will make it easier to implement

• https://github.com/4ian/GDevelop/issues/2775#issuecomment-978211788

Actions

• Change the tile of TileMap at (x ; y) to the id: tileId
• Rotate the tile of TileMap at (x ; y) from an angle of angle°
• Flip horizontally the tile of TileMap at (x ; y)
• Flip vertically the tile of TileMap at (x ; y)

Condition

• The tile of TileMap at (x; y) is tileId

Expression

• TileId(x, y)
• DimensionX()
• DimensionY()

There is no condition nor expression about rotation and flipping because they are not independent. For instance, a vertical + horizontal flipping is actually rotation of 180°. So, it's hard to know what is really asked. This is not really an issue because it would probably not be very useful anyway.

[4ian]

I don't have any concerns against adding these - do you plan/have already added them in one of your PR?

[D8H]

I don't have any concerns against adding these - do you plan/have already added them in one of your PR?

I plan to do it at some point. I'm not sure if I will do it in this PR. It will depend on the timing I guess.

• https://github.com/4ian/GDevelop/pull/3313