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  1. Minecraft: Java Edition
  2. MC-106683

map_tracking_position tag of filled maps is not read when map_scale_direction is provided

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    Details

    • Type: Bug
    • Status: Open
    • Resolution: Unresolved
    • Affects Version/s: Minecraft 1.10.2, Minecraft 1.11
    • Fix Version/s: None
    • Labels:
    • Confirmation Status:
      Confirmed
    • Category:
      (Unassigned)

      Description

      The following is based on a decompiled version of Minecraft 1.10 using MCP 9.30.

      The bug

      The tag map_tracking_position is not read from a filled_map if the tag map_scale_direction is provided. This is kind of strange because they don't preclude each other. The value of map_scale_direction is added to the scale and map_tracking_position determines whether or not a marker for the player should be added to the map and updated.

      Affected method: net.minecraft.item.ItemMap.onCreated(ItemStack, World, EntityPlayer)

      How to reproduce

      1. Use the following command
        /give @p filled_map 1 32767
        
      2. Look at the map, its scale should be 3/4 and it should not show your position
      3. Replace "###" with the data value of the map you just gave you
        /setblock ~ ~ ~ furnace default replace {Items:[{Slot:2b,id:"filled_map",Count:1b,Damage:###s,tag:{map_scale_direction:1,map_tracking_position:1b}}]}
        
      4. Look at the map
        → You will see that only map_scale_direction changed the map (3/4 scale became 4/4) scale

      To prove that the map_tracking_position tag works:

      1. Use the following command
        /give @p filled_map 1 32767
        
      2. Look at the map, its scale should be 3/4 and it should not show your position
      3. Replace "###" with the data value of the map you just gave you
        /setblock ~ ~ ~ furnace default replace {Items:[{Slot:2b,id:"filled_map",Count:1b,Damage:###s,tag:{map_tracking_position:1b}}]}
        
      4. Look at the map
        → The map tracks now your position

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            • Assignee:
              Unassigned
              Reporter:
              marcono1234 [Mod] Marcono1234
            • Votes:
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              3 Start watching this issue

              Dates

              • Created:
                Updated:
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