Tilemap painting in Unity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to get the Tilemap component from the GameObject.

Unity

Tilemap tilemap = gameObject.GetComponent<[1]>();

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ATransform

BRenderer

CTilemap

DCollider

Attempts:

3 left

💡 Hint

Common Mistakes

Using Renderer instead of Tilemap

Using Collider or Transform which are unrelated

The GetComponent<Tilemap>() method gets the Tilemap component attached to the GameObject.

2fill in blank

medium

Complete the code to set a tile at position (0, 0, 0) on the Tilemap.

Unity

tilemap.SetTile(new Vector3Int(0, 0, 0), [1]);

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AgameObject

Bposition

Cnull

Dtile

Attempts:

3 left

💡 Hint

Common Mistakes

Passing null which removes a tile

Passing position or gameObject which are wrong types

The SetTile method requires a TileBase object to place at the given position. Here, tile is the tile to paint.

3fill in blank

hard

Fix the error in the code to clear a tile at position (1, 2, 0).

Unity

tilemap.SetTile(new Vector3Int(1, 2, 0), [1]);

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Anull

Btile

Cnew Tile()

DVector3Int.zero

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a tile instead of null

Passing a new Tile object which adds a tile

To clear a tile, you must set it to null. Passing a tile or other value will not clear it.

4fill in blank

hard

Fill both blanks to create a loop that paints tiles at positions (0,0) to (2,2).

Unity

for (int x = 0; x [1] 3; x++) {
    for (int y = 0; y [2] 3; y++) {
        tilemap.SetTile(new Vector3Int(x, y, 0), tile);
    }
}

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A<

B<=

C>

D>=

Attempts:

3 left

💡 Hint

Common Mistakes

Using <= which causes index 3 to be included

Using > or >= which never runs the loop

The loops run while x and y are less than 3 to cover positions 0, 1, and 2.

5fill in blank

hard

Fill all three blanks to create a dictionary of tile positions and paint only tiles with x greater than 1.

Unity

var tiles = new Dictionary<Vector3Int, TileBase>() {
    { new Vector3Int([1], 0, 0), tile1 },
    { new Vector3Int(1, [2], 0), tile2 },
    { new Vector3Int(2, 2, [3]), tile3 }
};

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A2

B0

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong coordinates that don't match the condition

Setting z to non-zero which may cause confusion

The positions are set so that tiles with x=2 are painted, and the z coordinate is 0 for all.