Support Beams not supporting?

[arshia111 1]

Well, I dunno if it is a bug or not, but I'm gonna follow the template anyways,

 

Version #: 0.78.17

SSP/SMP (Single/MultiPlayer): Singleplayer

Suggested Name:

 Suggested Category : Annoying

Description:

 

 

So, yeah. I have a drop covered by a one-thick dirt layer. To prevent it from collapsing, I put support beams under it. Thing is, dirt blocks still randomly fall every now and then. The picture was taken after a few minutes after placing the beams. AFAIK, the beams should be supporting the dirt, but, for some reason, they aren't. Am I doing something wrong?

Have you deleted your config files and are still able to reproduce this bug?: I haven't edited the config file.

Do you have any mods other than Forge and TFC installed?: Yes

If yes, which mods? Rei Minimap, Aroma Backup, CodeChickenCore, Chicken Chunks, Not Enough Items, Waila.

[Kittychanley 1,002]

Possibly a duplicate of this bug:

 

http://terrafirmacraft.com/f/topic/6117-

 

 

In general, support beams are used to prevent cave ins, and death from cave ins. Any other use such as supporting dirt or using them to build structures isn't really officially supported, so we can't guarantee any specific behavior.

[PhineasWynd 41]

Workaround - make 2 layers of dirt above the beam. The dirt only disappears when it turns into grass, so the second layer down won't ever turn into grass, and won't disappear.

[arshia111 1]

Possibly a duplicate of this bug:

 

http://terrafirmacraft.com/f/topic/6117-

 

 

In general, support beams are used to prevent cave ins, and death from cave ins. Any other use such as supporting dirt or using them to build structures isn't really officially supported, so we can't guarantee any specific behavior.

 

Well, I was just trying to make dirt stand still, which is usually what support beans are for. Actually, I was trying to prevent a cave in from removing the ground around my house.

 

Workaround - make 2 layers of dirt above the beam. The dirt only disappears when it turns into grass, so the second layer down won't ever turn into grass, and won't disappear.

 

That seemed to work. Thanks!

 

I wasn't considering the possibility of it falling when turning to grass, because I thought grass wasn't affected by gravity. I guess not all types of grass...

[dunkleosteus 2,425]

I believe this happens because walking on grass that has an air block under it has a small chance of converting the grass into dirt and falling. I think this process supersedes the support calculations, which is why having two layers of dirt would work: the bottom dirt is already being held by the support beam and the grass block won't turn into dirt when there is dirt beneath it.

[arshia111 1]

I believe this happens because walking on grass that has an air block under it has a small chance of converting the grass into dirt and falling. I think this process supersedes the support calculations, which is why having two layers of dirt would work: the bottom dirt is already being held by the support beam and the grass block won't turn into dirt when there is dirt beneath it.

 

The weird thing is that it was happening without even walking on the grass. The holes just randomly started appearing. I believe it has something to do with grass spreading to nearby dirt blocks rather thank actually walking on the grass.

 

Quite possibly when a new grass block is formed, it is still subject to gravity for a split second before it realizes that it isn't supposed to fall. That's okay when it happens on normal dirt, because since the dirt is being supported by other blocks, turning to grass will still keep it in the same place. But when it's floating in the air, since it has nothing below it (and quite possibly doesn't check for nearby support beams), something happens and makes it fall. I'd do some further testing with it to see if that's what is actually happening.