is Hitting Tile

See if the sprite has contacted a wall tile or not.

sprites.create(null).isHittingTile(CollisionDirection.Left)

The function checks if the sprite is currently touching a wall tile on on of it’s four sides. If the sprite is contacting the wall tile, then true is returned.

The sprite must be in motion (a velocity of vx or vy that isn’t 0) before the checking for a tile hit. Otherwise, false is returned even though the sprite is touching the wall tile.

Parameters

• direction: the direction check for a wall collision: left, right, top, or bottom

Returns

• a boolean value that is true if the sprite is contacting a wall tile or false if isn’t touching a wall tile.

Example

Build a brick wall of tiles in the scene. Send a arrow sprite towards the wall. If the sprite hits the wall, send it back in the oppsite direction.

let flipImage: Image = null
let mySprite: Sprite = null
scene.setTile(2, img`
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 
1 2 2 2 2 2 2 2 2 2 2 2 2 f 2 1 
1 2 2 f 2 2 2 2 2 2 2 2 2 2 2 1 
1 2 2 2 2 2 2 f 2 2 2 2 2 2 2 1 
1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 
1 2 2 2 2 2 2 2 2 2 2 2 f 2 2 1 
1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 
1 2 2 2 2 f 2 2 2 f 2 2 2 2 2 1 
1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 
1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 
1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 
1 2 2 f 2 2 2 2 2 2 2 2 f 2 2 1 
1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 
1 2 2 2 2 2 2 f 2 2 2 2 f 2 2 1 
1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 
`, true)
scene.setTileMap(img`
. . . . . . . . . . 
. 2 . . . . . . . . 
. 2 . . . . . . . . 
. 2 . . . . . . . . 
. 2 . . . . . . . . 
. 2 . . . . . . . . 
. 2 . . . . . . . . 
. . . . . . . . . . 
`)
flipImage = img`
. . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . 
. . . . . 5 5 5 5 5 5 . . . . . 
. . . 5 5 5 5 5 5 5 . . . . . . 
. . 5 5 5 5 5 5 5 . . . . . . . 
. 5 5 5 5 5 5 5 . . . . . . . . 
5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 
5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 
. 5 5 5 5 5 5 5 . . . . . . . . 
. . 5 5 5 5 5 5 5 . . . . . . . 
. . . 5 5 5 5 5 5 5 . . . . . . 
. . . . . 5 5 5 5 5 5 . . . . . 
. . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . 
`
mySprite = sprites.create(flipImage, SpriteKind.Player)
mySprite.vx = -50
game.onUpdate(function () {
    if (mySprite.isHittingTile(CollisionDirection.Left)) {
        flipImage.flipX()
        mySprite.vx = mySprite.vx * -1
    }
})

See also

tile hit from, on hit tile