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[TileMap] How to get the Instantiated Object of all tiles ?

Discussion in '2D Experimental Preview' started by Kiupe, Feb 19, 2019.

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  1. Kiupe

    Kiupe

    Joined:
    Feb 1, 2013
    Posts:
    528
    Hi,

    Just beginning with Tilemap and I'm struggling how to get the Instantiated object of all tiles. Using TileMap.GetBlocks returns TileBase which does not contains a method to get the Instantiated Object. The GetInstantiatedObject method of TileMap expects a tile coordinate but I don't know how to get all tiles coordinate in order to be able to call that method for all tiles.

    Basically I need to access to all Instantiated Objects and store them in a 2d array that will represent the actual grid. Instantiated objects have a script that initializes values at runtime. So Instantiated object really reflect the grid state.

    Thanks
     
    Kiupe, Feb 19, 2019
    #1

  2. ChuanXin

    ChuanXin

    Unity Technologies

    Joined:
    Apr 7, 2015
    Posts:
    1,068
    Could you elaborate more on this? This would help a lot!

    Each Tilemap has an origin and a size. If the Tilemap is of a limited size (Tilemap.CompressBounds() can help), you can do the following:

    Code (CSharp):
    1. var bounds = new BoundsInt(tilemap.origin, tilemap.size);
    2. foreach (var position in bounds.allPositionsWithin)
    3. {
    4.     var go = tilemap.GetInstantiatedObject(position);
    5.     // Do action with go here
    6. }
     
    ChuanXin, Feb 26, 2019
    #2
    granit likes this.

  3. Kiupe

    Kiupe

    Joined:
    Feb 1, 2013
    Posts:
    528
    Ok, it all make sense, thanks !
     
    Kiupe, Feb 26, 2019
    #3

  4. sanchitgulati

    sanchitgulati

    Joined:
    Nov 24, 2014
    Posts:
    1
    @ChuanXin Using Unity 2019.3.0f5 and code you suggested returns null for the go variable.
    *Not doing this on Start() call so there is no way values are not initialized yet.
     
    sanchitgulati, Jan 16, 2020
    #4

  5. yukunlinykl

    yukunlinykl

    Joined:
    Dec 17, 2021
    Posts:
    21
    But how can I access the object in TileBase.GetTileData?
    The argument of TileBase.GetTileData is ITilemap, which the ITilemap interface don't have the GetInstantiatedObject function.
     
    yukunlinykl, Dec 19, 2022
    #5

  6. MelvMay

    MelvMay

    Unity Technologies

    Joined:
    May 24, 2013
    Posts:
    11,492
    Please use the 2D forum and create your own threads. Please do not hijack/necro threads. This forum is for experimental features too.
     
    MelvMay, Dec 20, 2022
    #6
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