Fake item pop-out can jump over walls

[issuebotaudinowho]

Discord: soorte#0 <@947281823615045643>

At Trickster Woods, an Applin tried to spawn inside a wall and disappeared.

[audinowho]

This is because the applin tried to land one tile ahead of the player, which was a wall.
The game then calculated to find the closest open tile, from which directional priority chose the tile past the wall.

This behavior is a subset of #454