Direct rotation (not "smooth" and prettier 359 -> 0)

[david476 10]

Is there a way to render exactly the rotation value without the "nice" smooth rotation or the weird turning that happens when you go from 359 degrees to 0?

[Busti 72]

Are you talking about GL.glRotated(x, y, z, rot)?

[david476 10]

I use rotatef, but whatever causes the problem (setting the yaw does seem to do it too, but could be happening in client syncing)

[TheGreyGhost 819]

Hi

 

To be honest I have no idea what you're talking about, could you post a video perhaps?

 

-TGG

[david476 10]

I'll try, but just for a better explanation...

 

Rotations for my entity are "smooth", they do not seem to get perfectly set exactly to the variable's value (renders are made into a consistent > 20 fps rotation). As a part of this, when the rotation variable I set goes from 359 to 0, the model rotates 359 degrees backwards instead of 1 in the right direction to get to 0(in a fraction of a second).

[david476 10]

Note: rotations are being set to a entityRiding's (a player's in my case) yaw.

[Busti 72]

Shouldn't that be just a mathematical problem using the PartialTickTime and the update tick?

 

[david476 10]

New terms to me! Want to expand on them?

[jabelar 593]

I'll try, but just for a better explanation...

 

Rotations for my entity are "smooth", they do not seem to get perfectly set exactly to the variable's value (renders are made into a consistent > 20 fps rotation). As a part of this, when the rotation variable I set goes from 359 to 0, the model rotates 359 degrees backwards instead of 1 in the right direction to get to 0(in a fraction of a second).

 

Can you post your code?  You're probably just not handling that case (of going past 360) properly.

[david476 10]

using:

 

if (ShipCSeat != null && ShipCSeat.riddenByEntity instanceof EntityPlayer) {

EntityPlayer player = (EntityPlayer) this.ShipCSeat.riddenByEntity;

this.setRotation(player.rotationYaw, 0);

}

 

in an onUpdate class that calls super. ShipCSeat is the entity that the player actually rides retrieved from server on server using UUID.

[jabelar 593]

I'm not really sure why that code would cause any problem with rotating past 360.  You're just setting the rotationYaw of your ship to match your player that is riding it.  Where is the "smooth" rotation happening that is causing the problem?

[TheGreyGhost 819]

Hi

 

I still don't understand your question, but a random idea: try setting prevRotationYaw as well as rotationYaw.

 

-TGG

[david476 10]

Shouldn't that be happening on the Entity class's onEntityUpdate that I call at the beginning of onUpdate with super.onUpdate();? Maybe that needs to be sent client side? Seemed to me like onUpdate wasn't being called on both sides...

[david476 10]

Update: It looks like this still happens when I just add to the rotation, so not a problem with using an entityPlayer's yaw.

[jabelar 593]

I'm still not sure of your problem.  You're saying that if you change the rotation, that it will slowly go towards that rotation and in case where it is near 360 it will go the wrong way around?

 

I thought setting the rotation would immediately rotate it.  I'm not sure where it is doing the "smooth rotation" code.  But you need to find that because that is where it would have to handle the case of going past the full circle.

[TLHPoE 39]

Is your ship very wide/long? If so, I think you're talking about how the end of your ship is rotated very rigidly.

 

This is to be expected due to the fact that the farther away an object is from the center of rotation, the more space it will travel to fulfill the rotation.

[david476 10]

Haven't been modding in a while but went back in and just using my own variable seems to work fine. Still has the smooth/ lagginess but I think that is just the actual rotation of the player...