[MC-1307] Corner stairs have a gap in the hitbox Created: 30/Oct/12  Updated: 15/Jun/21  Resolved: 12/Nov/15

Status: Resolved
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Minecraft 1.4.2, Minecraft 1.4.6, Minecraft 1.4.7, Snapshot 13w04a, Minecraft 1.5, Minecraft 1.5.1, Minecraft 1.5.2, Snapshot 13w18b, Snapshot 13w18c, Minecraft 1.6.2, Minecraft 1.6.4, Minecraft 1.7.10, Minecraft 14w28a, Minecraft 14w28b, Minecraft 14w32a, Minecraft 14w32b, Minecraft 14w32c, Minecraft 14w32d, Minecraft 1.8.8, Minecraft 15w32c, Minecraft 15w34d, Minecraft 15w42a
Fix Version/s: Minecraft 15w45a

Type: Bug
Reporter: Cat Assignee: Unassigned
Resolution: Fixed Votes: 7
Labels: corner, placement, stairs

Attachments: PNG File 2012-10-30_13.14.46.png     PNG File 2012-10-30_13.16.16.png     PNG File 2012-10-30_13.16.26.png     PNG File 2012-10-30_13.16.28.png     PNG File 2015-08-22_13.26.30.png     PNG File 2015-08-22_13.26.35.png     PNG File 2015-08-22_13.26.43.png     File MC-1307.mp4     PNG File stairs_orientations.png    
Issue Links:
Duplicate
is duplicated by MC-7223 Corner stairs, at some angles, have t... Resolved
is duplicated by MC-7395 Click through corner stairs Resolved
is duplicated by MC-7598 Stair Placing Bug Resolved
is duplicated by MC-7608 You can place Blocks behind stairs Resolved
is duplicated by MC-8682 Can place stairs through corner stairs Resolved
is duplicated by MC-13365 You can build and break through corne... Resolved
is duplicated by MC-15132 Can not place on back face of stairs. Resolved
is duplicated by MC-31034 Incorrect Hitboxes Resolved
is duplicated by MC-77981 Corner stairs have no hitbox Resolved
is duplicated by MC-85452 Incorrect placing of blocks on corner... Resolved
is duplicated by MC-90563 No Updating Stair Hitbox Resolved
is duplicated by MC-2227 Corner stairs have incorrect hitboxes Resolved
Relates
relates to MCPE-119845 Stairs do not update their hitbox whe... Reopened
CHK:
Confirmation Status: Confirmed

 Description   

When stairs are placed in a Z-shape with 2 corner stairs next to each other, placing blocks on/next to the corner stairs behaves inconsistently.

It's hard to explain in words - just look at the pictures.



 Comments   
Comment by [Mod] redstonehelper [ 12/Nov/15 ]

Fixed in 15w45a.

Comment by user-f2760 (Inactive) [ 22/Aug/15 ]

it's because you can hit trough the added corner, see attached screenshots
confirmed for 15w34d
can the title be changed so it is more clear what the issue is?

Comment by Vasil Bochev [ 10/Aug/14 ]

Valid as of 14w32d

Comment by Vaporizer [ 11/Jul/14 ]

It still happens in 14w28b as you can see in video.

Comment by Markku [ 30/Sep/13 ]

Affects 1.6.4.

Comment by Markku [ 04/May/13 ]

(Adapting part of my comment from MC-15132 to here; note, this issue affects more than just placing other stair blocks: )

The crosshair (aiming) raytracing is done with the "real" stairs, not the visuals of the stairs. The aimed stairs block can be placed in two orientations which both produce the same visual result.

Screenshot 'stairs_orientations.png' shows the two orientations: the upper placement (after adding a stairs block to the corner) shows the issue, while the lower placement will not.

First I thought this is a minor bug, but then I realized that this can be used to shoot arrows through a visually solid stairs (near the corner). I think the real bug here is that the stair's raytracer method uses only the block's data to figure the shape of the block, instead of the visual shape based also on the neighbor blocks' data. As the raytracer is used for multiple things, it might be good to improve it; doing that would automatically fix all the use cases at once.

Comment by Mustek [ 25/Dec/12 ]

This only happens if you're occupying the space where the stair is intended to go.
This does indeed only happen with stairs though.

Comment by Ali [ 30/Oct/12 ]

I can confirm this, if you place stairs on this construction, they appear on another place than that you pointed at!

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