enemy AI when using tilemap

[TheBlackSword]

How would I create basic enemy AI (say, have a guard patrol and when he hits a wall he turns around) when using tilemaps? I tried using the blocked property but that didn't seem to work. 

[gnl]

Basically you would have to use physics.arcade.collide method between your character and the layer group in your update function with a callback function after having set the index of the tiles you want to collide with by using the map.setCollision function while creating your map and layer.