Solid tiles (unhookable, hookable, hookthrough) have a square hitbox of 60x60 units.
Freeze lasers are complicated. Assuming a freeze laser pointing upwards with the source entity at the bottom (which creates a "top" freeze laser at the uppermost tile, 2 full tiles of vertical freeze laser in the middle, and a bottom "source" laser tile.):
From the side, they will freeze a distance of 28 units left and right from the center.
From the top, they have a hitbox radius of units 27 units upwards from the center.
From the side, they will freeze a distance of 28 units downwards from the center.
Stoppers are a little more complicated. Be aware - since stoppers are easily skippable, these hitboxes don't mean much due to the fact that one can easily skip several units through a stopper with speed.
1-way stoppers (assumed to be pointing upwards) will prevent further downwards motion starting a distance 34 units upwards from the center but 16 units leftwards, rightwards, and downwards from the center.
2-way stoppers (assumed to be pointing up and down) will prevent inwards motion starting a distance 34 units upwards and downwards from the center but 16 units left and right from the center.
4-way stoppers will prevent inwards motion starting a distance 34 units in all directions from the center. Keep in mind that the hitbox is "+" shaped rather than square shaped.
