Cobweb/ja

The Cobweb is a special block that slows down entities moving through it.

Cobwebs are intangible in the sense that the player can move through: they do not have a collision box.

But cobwebs do have an "effect box" that is 0.001b smaller than a full block. If the player's bounding box intersects with this effect box, their velocity will be set to 0 and their movement will be hindered.

In particular, the player is able to stand next to a cobweb if they are at most 0.001m away from the edge.

In that case, the player is able to move normally while "touching" the cobweb's borders.

Vertical Movement:
Vertical speed is slowed down by a factor of 20, and is reset on every tick.

Jumping is severely limited, and reaches just 0.021m in height.

The player will then immediately start falling at a constant speed of -0.00392 m/t.

Horizontal Movement:
Horizontal speed is slowed down by a factor of 4, and is reset on every tick.

This means the player will move at a constant speed of 0.03185 m/t when sprinting on ground, or 0.00637 m/t while airborne.

Or, respectively with 45° Strafe, 0.0325 m/t when sprinting on ground, and 0.0065 m/t while airborne.

Calculations: