I'm attempting to recreate this concept using an 16 'x' compass rose and 25 'y' axis degree. My first attempt I already had the rotations for N, S, E, and, W as well the NE, NW, SE, and SW. Additionally, I had the 'y' axis degrees looking down. But as I research more, I found the cardinal directions were not accurate.

In the wiki, it states that 180.0 is north, -90.0 is east, 0.0 is south, and 90.0 is west. With that being said the appropriate command for testing facing south is @a[ry=0,rym=-0]. However once a player turning left meeting 0.0 the command automatically finds the player once they reached 0.9 instead of 0.0.

The same issue is the same if a player was to look up. An example is when a player were to attempt to face at 75 degree up the command to testfor such thing would be /testfor @a[rxm=-75,rx=-75].

What do I need to know in order to testfor the correct and accurate intgers? Am I doing something wrong on how the order of ry & rx in each command?

  • I'm pretty sure you can't test for the exact values in the selectors, as @a[rxm=-75.0,rx=-75.0] won't work. and the way it's found is just the way minecraft rounds those numbers, i don't think there is anything we can do about that. – Plagiatus Dec 26 '16 at 19:07

You can easily find the rotations by pressing F3 in a world and looking at where it says "Facing:". This picture shows the rotation my head is currently looking at.Rotation

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    The question is asking about using the rotation values in commands, which your answer doesn't address. – Angzuril Jan 5 '17 at 21:09
  • This actually is the rotation values, because you can type /tp @p ~ ~ ~ -27 -7 and it will teleport you to that exact rotation. So unless I'm misunderstanding you, I believe this is correct. – Jason Jan 5 '17 at 21:13
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    I should have said command blocks. Yes they can input values from F3, but they need a way to find the find the values using the command block, e.g. check if a player is facing southeast. – Angzuril Jan 5 '17 at 21:17

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