Players may spawn within walls in the squares, diamond, and castle maps

[haykam821]

Because players can spawn at any decimal on a valid spawn block, their bounding boxes may intersect at most halfway into a wall.

• Since the squares map has a spawn region that aligns with several walls, players may intersect with a wall or iron door and escape out of bounds.
• This issue also affects glass walls on the diamond map.
• This issue also affects the four corner pillars on the castle map.
• Other maps may be affected.

This issue may be fixed by either modifying the affected maps or by improving spawn position calculation.