Current problems:
Cannot enable the offhand slot
Cannot disable the mainhand slot.
Can replace when placing is disabled.
The current implementation is:
1 << slot = disables all interaction1 << (slot + 8) = disables removing/replacing1 << (slot + 16) = disables placing, allows removing/replacing
Slot values:
boots slot: 1, pants slot: 2, chest slot: 3, helmet slot: 4
offhand is always disabled, mainhand is always enabled.
To reproduce:
/summon armor_stand/entitydata @e[type=armor_stand] {DisabledSlots:255}, for instance (more example values below)
Example values:
Disabled all interaction, except boots: 11111101= 253
Disabled all interaction, except pants: 11111011= 251
Disabled all interaction, except chest: 11110111= 247
Disabled all interaction, except helmet: 11101111= 239
Disabled all interaction, all slots: 11111111 = 255
Disabled removing/replacing, all slots: 11111111 00000000 = 65280
Disabled placing, allow removing, all slots: 11111111 00000000 00000000 = 16711680
What the implementation should be (see Searge's comment here):
1 << slot = disables all interaction1 << (slot + 8) = disables removing1 << (slot + 16) = disables placing
'Replacing' should theoretically not be possible, and the first flag should also disable placing and not just removing.
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Comments 22
@Searge, Sure, added a world file. Setting to 31 indeed works for all slots, but when attempting to set flags for specific slots (such as 16 for head slot), it allows me to place/replace.
The new implementation use (1 << slot) to disables all interactions. If you apply this formula to the 5 slots, you have :
DisabledSlots = (1 << 0) + (1 << 1) + (1 << 2) + (1 << 3) + (1 << 5)
DisabledSlots = 1 + 2 + 4 + 8 +16 = 31
This change is relatively recent, so things like wiki and online generator have a high chance to be outdated.
I want the following:
Enabled:
Only "Remove" (not "Replace") o only the head slot.
All other slots and Placing/Replacing Items are disbaled.
What number do I need?
I would keep the offhand part out of this because it is not related to DisabledSlots.
And why is there a need for a flag to disable all interaction when this can be achieved by combining flags?
Edit: It looks like only 1 << slot is not working for the mainhand, all other situations should work.
Something in this description of the disabled flags isn't quite right, and it is possible to disable the mainhand, despite this report claiming you cannot. (The information on the wiki is mostly correct here https://minecraft.gamepedia.com/Armor_Stand/ED)
DisabledSlots:1 Prevents adding/replacing a hand slot
However, it seems that DisabledSlots:16 does not function as the wiki states (which may be due to incorrect information rather than a bug, I can't tell). While it seems like it should disable adding to a head slot, it instead disabled removing from the head slot, behaving the same as DisabledSlots:4096
It may be necessary for someone to examine the actual game code to figure out the algorithm behind this feature.
I can't reproduce it, for example using 31 disables all interactions with all slots on the armorstand, works fine here. Do you have a world save that can reproduce the problem you described?