The bug
When setting a furnace to have a CookTime of 1s, a CookTimeTotal of 1s, any variable of BurnTime greater than 1, and any smeltable item in slot 0b, then its GUI texture extends further than it should over to the right.
/setblock ~ ~ ~ furnace{CookTimeTotal:1,BurnTime:999,CookTime:1,Items:[{id:oak_log,Count:1}]}Code analysis
Based on 1.10 decompiled using MCP 9.30
The problem is that the method net.minecraft.client.gui.inventory.GuiFurnace.drawGuiContainerBackgroundLayer(float, int, int) does not test if the calculated values "make sense". Because of this it uses an invalid width for a non-default CookTime CookTimeTotal ratio. This affects the BurnTime as well, but there you would have to change textures/gui/container/furnace.png to see it because the maximum height you could achieve is not enough to have the fire texture be repeated.
Linked issues
is duplicated by 5
MC-81622
Weird gui glitch when editing furnaces
Resolved
MC-124332
Changing nbt in a furnace while smelting freezes furnace.
Resolved
MC-188020
Furnace is broken when reloaded with large cooktime recipe
Resolved
MC-189135
Furnace gui expanding itself.
Resolved
MC-227248
furnace GUI glitches when CookTime is over 100
Resolved
relates to 1
Attachments
Comments 6
Here is a correct command to reproduce the bug, it does NOT require any mod/ressource pack :
/setblock ~ ~ ~ furnace 0 replace {CookTimeTotal:1,BurnTime:999,CookTime:1,Items:[{id:log,Count:1}]}This issue was fixed after changes to container sprite locations/rendering behavior in Snapshot 23w32a.
As of Minecraft 1.20.1, the bugged behavior was still reproducible with the above command:
[media]As of Snapshot 23w32a and in all subsequent releases, the texture appears normally when running the same command:
[media]
Cant reproduce in minecraft 1.8.6 or 1.8.3. Had to use a command block as the command is too large for chat, and the sintax was wrong. Please provide the exact command you used