[1.7.10] Help! Weird entity rendering bug.

[Cleverpanda]

Okay, here's my problem. Basically my entity will "jump" up a block when any of these happen: Touched by arrow, player, thrown item, eggs, or snowballs. Basically, when any other entity touches it. I've been trying to fix this for a few weeks now with no success. All I can tell is that its a rendering problem because the hit box stays in the correct spot. The entity is supposed to be a totem of sorts that attracts passive mobs and should be collideable and immovable. Here's a few classes: My Entity- http://pastebin.com/Anv6ufp8 Renderer- http://pastebin.com/L0mzjW3Y Model- http://pastebin.com/77PWYkR1 I think it might be my glTranslated line in the renderer but that needs to be there to offset the model correctly. I'm not sure.

 

Any ideas guys?

[TheGreyGhost]

Hi

 

Your render code looks ok to me.  That symptom is weird, I'm not sure what might be causing it.

 

I'd suggest trying something to narrow it down a bit:

Add

System.out.println("render at [x,y,z] = [" + p_76986_2_ + "," + p_76986_4_ + ", " + p_76986_6_+"]");

to your doRender.

 

Then watch what happens when you throw a snowball at it.

 

-TGG

[Cleverpanda]

Okay so I added that and I found that those variables change when I walk around. I think the values it's reporting are the entity position relative to me. I also added a print statement in onCollideWithPlayer in my entity class.

 

Here's some results. Iv'e removed a bunch of lines with insignificant changes for legibility.

 

When I was moving around and towards it.

render at [x,y,z] = [-0.0688205783826561,-0.6200000047683716, 1.8603158817116423]
render at [x,y,z] = [-0.06856183817012607,-0.6200000047683716, 1.9326404313910075]
render at [x,y,z] = [-0.06830309795759604,-0.6200000047683716, 2.0049649810703727]
render at [x,y,z] = [-0.06556813480119672,-1.6200000047683716, 2.735793783717895]
//Big cut out 
render at [x,y,z] = [0.14993124868499308,-1.6200000047683716, 2.6901420373826]
render at [x,y,z] = [0.1494137597773033,-1.6200000047683716, 2.616952694172994]
render at [x,y,z] = [0.14891149117158875,-1.6200000047683716, 2.5169638530804264]
render at [x,y,z] = [0.1484092225658742,-1.6200000047683716, 2.404049388770545]
render at [x,y,z] = [0.14789173365818442,-1.6200000047683716, 2.279212722030593]
render at [x,y,z] = [0.14737424479574202,-1.6200000047683716, 2.1454823556259157]
render at [x,y,z] = [0.1468719761446664,-1.6200000047683716, 2.0116582882938587]
COLLIDED WITH PLAYER
render at [x,y,z] = [0.14636970753895184,-1.6200000047683716, 1.875531413200008]
render at [x,y,z] = [0.14585221867662312,-1.6200000047683716, 1.7326454368743498]
render at [x,y,z] = [0.1468719761446664,-1.6200000047683716, 2.0116582882938587]
COLLIDED WITH PLAYER
render at [x,y,z] = [0.14636970753895184,-1.6200000047683716, 1.875531413200008]
render at [x,y,z] = [0.14585221867662312,-1.6200000047683716, 1.7326454368743498]

 

When I hit it with a snowball. I opened the main menu right as the glitch occurred.

render at [x,y,z] = [-1.0521818682104822,-1.6200000047683716, 3.2085209891840236]
[21:44:55] [server thread/INFO]: Saving and pausing game...
[21:44:55] [server thread/INFO]: Saving chunks for level 'New World'/Overworld
render at [x,y,z] = [-1.0521818682104822,-0.6200000047683716, 3.2085209891840236]
render at [x,y,z] = [-1.0521818682104822,-0.6200000047683716, 3.2085209891840236]

[ShetiPhian]

Just a thought:

Your entity height is smaller then the bounding box.

 

What happens if  you use  this.setSize(1.0F, 2.0F);

[TheGreyGhost]

Hmmm

 

well it's for sure not your renderer.

 

My guess is that the collision is causing your entity's position to be updated.  You could confirm that by adding a System.out.println of the entity position to the onUpdate() method, posX, posY, posZ.

Maybe you are using the collision boxes wrongly - eg vanilla uses this method below for all Entities except boats and Minecarts, so maybe yours should return null as well.

 

    /**
     * Returns a boundingBox used to collide the entity with other entities and blocks. This enables the entity to be
     * pushable on contact, like boats or minecarts.
     */
    public AxisAlignedBB getCollisionBox(Entity p_70114_1_)
    {
        return null;
    }

 

-TGG

 

[Cleverpanda]

Thanks guys! A combination of both of those seems to have fixed the jumping problem. And my hit box lines up in the Y direction. I guess that method is for rigid bodies that are supposed to be affected when they collide. My only problem now is that arrows bounce off the sides when I shoot at it and get stuck in the top and do the glitchy dance.