[MC-58097] Coordinates Are Messed Up

The block that I am "looking at" is not the same as when I stand in the same space. When using /setblock and related commands you have to enter the "looking at" coordinates, which are different than if standing there.

Linked issues

duplicates 1

MC-36602 Commands with coordinates are NOW offset -1 x and/or z from where it should be (at negative X and Z coordinates) Resolved

relates to 1

MC-4794 Teleporting to negative coordinates is inaccurate Resolved

Attachments

Comments 15

kumasasa 2014-06-19T22:07:19Z

Cannot confirm, see screenshots.

Reese Gosain 2014-06-20T15:16:44Z

Look at the last screenshot. You are apparently at different coordinates than the ones you are looking at.

user-f2760 2014-06-20T15:21:02Z

you stand on the block so your y cord is 1 higher, thats intended.
if this isn't what you mean, please explain it better

kumasasa 2014-06-20T15:29:01Z

No, I'm standing on block -16 / 96 and I'm looking on -16 / 96.
Of yourse my feet are on level 64 - the top of block 63.

What other results do you except from my screenshots ?

Reese Gosain 2014-06-21T03:52:29Z

In the third screenshot it says you are standing on -15, but looking at -16. I might record a video tomorrow to show what I see when I go in game.

5 more comments

Arthur Bradbury 2014-06-21T04:03:01Z

Cannot reproduce. The difference in Kumasasa's third shot is that there is an odd angle (he isn't actually standing on x=-16, but x=-15) See my screenshot: http://imgur.com/3CSALSR.

MJo 2014-06-21T04:16:17Z

I believe this is intended. The "Block" coordinates are telling you what block the player is occupying. Specifically, the y-value in the "Block" coordinates is the y-value of the block occupied by the lower half of the player. The y-value in the "Looking at" coordinates is the y-value of the block that the player's cursor is over (when in reach). So when you are looking at a block on the ground, the y-value is correct for being 1 less than the y-value of the player.

Arthur Bradbury 2014-06-21T04:18:20Z

@MJo - I believe OP's talking about x coords (unless Y coords go negative).

MJo 2014-06-21T04:42:48Z

Ok, I think I see where the confusion is. I think in the OP Reese is referring to the difference in y-values between the "Block" coordinates and the "Looking at" coordinates, but in his second comment he accidentally used the x-value from Kumasasa's third screenshot. There is no odd angle in Kumasasa's third screenshot. His player's x-value is -16 and the block he is looking at (under his feet) also has an x-value of -16. Look at the screenshot again.

The difference however is in the y-value. His player's y-value is 64 and the block he is looking at (under his feet) has a y-value of 63. Reese, you will need to clarify exactly what you think the bug is. Use the recommended format for describing bugs:

What I expected to happen was...

What actually happened was...

Steps to reproduce:
1.
2.
3. ...

kumasasa 2014-06-21T07:39:05Z

... or this is the common misconception between the coordinates of the blocks and player coordinates, see explanation in MC-4794

Reese Gosain 2014-06-22T13:46:59Z

I made a video on what I see: http://youtu.be/CjAgbAy0jI8

kumasasa 2014-06-22T13:59:56Z

The block coordinates go from -2 -1 0 1 2 etc, but there is no block -0.
Therefore while standing on a block 2 your coordinates are e.g. 2.123 but while standing on a block -2 your coordinates are -1.123.
See MC-4794 and MC-36602

Arthur Bradbury 2014-06-22T14:03:15Z

The video does clarify your meaning, thanks. However, this isn't a bug in the game (note that your "Block" and "Looking At" are always the same when looking down at the block at your feet). The XYZ values only appear different due to the way they are counted. Kumasasa explains this well in MC-4794, as quoted below:

Please take a closer look at the coordinates.
The coordinates mark the corners of the blocks.
If you omit the fractional digits, you land always at the center of the nearest block (seen in +x, +z direction):
If you teleport to 1 / y / 1, you land at 1.5 / y /1.5
If you teleport to -1 / y / -1 you land at -0,5 / y / -0.5
but if you specify the fractinonal digits, you land excactly at given coordinates:
If you teleport to 1.0 / y / 1.0, you land at 1.0 / y /1.0
If you teleport to -1.0 / y / -1.0 you land at -1.0 / y / -1.0

And continued:

Think of a coordinate system on graph paper. The axes of the coordinate system go exactly through each one line on the paper, the squares on the paper are the blocks.
--> The integer coordinates mark the corners of the blocks, not the blocks itself.
If you teleport to (0.0/0.0), you land on the exact center of the coordinate system.
If you teleport to (0/0), you land on the middle of the block right of the Z axis and below the X axis (Yellow block), but at the coordinates (0.5/0.5)
If you teleport to (-1/0), you land on the middle of the block left of the Z axis and below the X axis (Green block), but at the coordinates (-0.5/0.5)

Reese Gosain 2014-06-22T14:21:27Z

Ok, thanks, I see now. Sorry for the waste of time.

kumasasa 2014-06-22T14:35:51Z