[SPZ2-4753] [0.1.0-pre8-rc1] Shape/Fluid Unloaders unload packages faster on splits

[distant sandal]

When a Shape or Fluid Unloader is connected directly to a Space Belt or Space Pipe split, the Unloader will unload any packages at a faster rate than the standard 4x capacity of the space belt by filling all the branches of the split. This causes the Unloader to unload twice as fast on a two-split, and three times as fast on a three-split.

Steps to reproduce:
-Make a simple train line with both a shape or fluid loader and unloader connected to the respective miner.
-Place a Space Belt/Pipe Split directly on the output of the unloader.
-Observe the output and compare it to an Unloader connected to a straight Space Belt.

Observed result:
The Unloader's content is unloaded to all branches of the split simultaneously, unloading faster than the 4x capacity of a normal Space Belt.

Expected result:
The Unloader's contents are unloaded to Space Belt and then split, following the usually 4x capacity of the belt pre-split.

[coarse latch]

Additionally, shape loaders with 2 or 3 way space belt merges seem to work extra fast, but only when zoomed out (when you zoom in and look at them they slow down to the expected speed).

[fair ember]

[SPZ2-4753] [0.1.0-pre8-rc1] Shape/Fluid Unloaders unload packages faster on splits

Thank you for your report! 😄

I've created a ticket in our internal system for further investigation 🙂

[fair ember]

Update: This is by design, to optimize unload speed you must unload to a space belt and then connect it to 4 foundation islands

Taggins as Not a Bug

[jolly folio]

with that behavior you could connect it to more than 4 foundations and each would still receive full throughput, is that also intentional ?

[fair ember]

Yes, that's intentional as well, the max input/output established for (un)loaders are 4 islands. Creating a 4-way splitter/merger should do the trick

[jolly folio]

the report is about the fact that if you use a splitter right after the unloader, it will have a capacity more than 4 foundations