Tilemap basics in Unity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a new Tilemap component in Unity.

Unity

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

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ACollider2D

BSpriteRenderer

CTilemap

DRigidbody2D

Attempts:

3 left

💡 Hint

Common Mistakes

Using SpriteRenderer instead of Tilemap.

Trying to add Rigidbody2D which is for physics.

To work with tilemaps, you add the Tilemap component to your GameObject.

2fill in blank

medium

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

Unity

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

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AVector3Int.zero

Bnull

Cnew Tile()

DmyTile

Attempts:

3 left

💡 Hint

Common Mistakes

Passing null which clears the tile.

Passing a position instead of a tile.

You need to pass a TileBase object like myTile to set a tile.

3fill in blank

hard

Fix the error in the code to get the tile at position (1, 2).

Unity

TileBase tile = tilemap.GetTile(new [1](1, 2, 0));

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AVector2Int

BVector3Int

CVector2

DVector3

Attempts:

3 left

💡 Hint

Common Mistakes

Using Vector3 which uses floats and causes errors.

Using Vector2 or Vector2Int which are 2D and not accepted here.

The GetTile method requires a Vector3Int for the position.

4fill in blank

hard

Fill both blanks to create a dictionary of tile positions and tiles for all tiles in the Tilemap.

Unity

Dictionary<Vector3Int, TileBase> tiles = new Dictionary<Vector3Int, TileBase>();
foreach (var pos in tilemap.[1].allPositionsWithin) {
    tiles[pos] = tilemap.[2](pos);
}

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AcellBounds

BGetTile

CGetTilesBlock

DGetPositions

Attempts:

3 left

💡 Hint

Common Mistakes

Using GetTilesBlock which returns an array, not positions.

Using GetPositions which does not exist.

cellBounds gives all positions in the tilemap bounds, and GetTile gets the tile at each position.

5fill in blank

hard

Fill all three blanks to create a tilemap that sets all tiles in a 3x3 area to a given tile.

Unity

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

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A3

CmyTile

Dnull

Attempts:

3 left

💡 Hint

Common Mistakes

Using null instead of a tile to set.

Using wrong loop limits.

The loops run from 0 to 2 (3 times) for x and y, and myTile is set at each position.