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Asked By | Thrallherd |
Hello, I am currently coding a hex grid, so I am using a TileMap with a half offset. I have two questions.
Given tile [p, q], how is its index calculated?
I opened the tilemap’s tscn file and I could see that the variable tile_data dictates which tiles are filled and how. How can I access tile_data inside a function?
Thank you.
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Reply From: | njamster |
- Given tile [p, q], how is its index calculated?
What do you mean by “index”? A cell in the TileMap is described by it’s position (x, y) and is associated with a unique tile id that determines which image you see. These id’s are simply counted up, so the first tile in the list is id 0, the second tile is id 1 and so on. If you delete tiles from your TileSet, there will remain gaps of unused ids.
- I opened the tilemap’s tscn file and I could see that the variable
tile_datadictates which tiles are filled and how. How can I accesstile_datainside a function?
That depends on what you want to do! If you are interested in all filled cells (no matter the tile), use get_used_cells. If you are only interested in a specific tile, you have to use get_used_cells_by_id and pass the tile’s id. Both of these will only give you a list of cell positions. If you interested in the tile id that a position is associated with, you can use get_cell (which expects x and y as arguments) or get_cellv (which expects a Vector2 describing the position as its argument). And if you’re using an Atlas- or AutoTile-tile you will need to use get_cell_autotile_coord.
Check out the documentation for further options.