MC-49912Command Block Minecarts No longer Stack together in Same Space when Riding each other.
This bug arose during the release of the 1.8 Development Snapshots.
I have provided a world download as an attachment which will show you this in action.
When you summon many of the entity "MinecartCommandBlock" stacked on top of each other in previous versions, they would occupy the same Block space when on an activator rail. They now form in a tall tower, and often clip through the rail and the block beneath it if there is no filled space to stop it from clipping all the way through.
This causes the commands in the mine carts to fail to activate in the same (almost instant) order as before, breaking many compact inventions.
Command to replicate: (summon this 7 blocks above an activator rail to witness the full effects)
summon MinecartCommandBlock -14.5 75 20.5 {CustomName:"Reset",Command:"setblock ~ ~ ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~ ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~ ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~1 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~1 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~-1 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~-1 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~2 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~2 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~-2 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~-2 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~ ~2 ~-2 minecraft:coal_block",Riding:
{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~ ~-2 ~-2 minecraft:coal_block"}}}}}}}}}}}}}
Environment
All Game modes affected. No difference between Single player and Multiplayer enviroments. Expirienced by more than myself: other small youtubers have had this affect their inventions as well.
Attachments1
Created Issue:
Command Block Minecarts No longer Stack together in Same Space when Riding each other.
This bug arose during the release of the 1.8 Development Snapshots.
I have provided a world download as an attachment which will show you this in action.
When you summon many of the entity "MinecartCommandBlock" stacked on top of each other in previous versions, they would occupy the same Block space when on an activator rail. They now form in a tall tower, and often clip through the rail and the block beneath it if there is no filled space to stop it from clipping all the way through.
This causes the commands in the mine carts to fail to activate in the same (almost instant) order as before, breaking many compact inventions.Command to replicate: (summon this 7 blocks above an activator rail to witness the full effects)
summon MinecartCommandBlock -14.5 75 20.5 {CustomName:"Reset",Command:"setblock ~ ~ ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~ ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~ ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~1 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~1 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~-1 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~-1 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~2 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~2 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~-1 ~-2 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~1 ~-2 ~-2 minecraft:coal_block",Riding:{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~ ~2 ~-2 minecraft:coal_block",Riding:
{id:MinecartCommandBlock,CustomName:"Reset",Command:"setblock ~ ~-2 ~-2 minecraft:coal_block"}}}}}}}}}}}}}
Environment
All Game modes affected. No difference between Single player and Multiplayer enviroments. Expirienced by more than myself: other small youtubers have had this affect their inventions as well.
Attachments1
This is a feature. The clipping though is a bug, maybe you should make a separate report for the clipping issue.
Just asing.. Where has this been listed in any snapshot's changelist? I wouldn't consider this intended.
Confirmed for 14w11b
Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases. If this has been done, we can reopen the issue.
Keep in mind that the "Resolved"-Status on this ticket just means "Answered", and that we are waiting for further information on whether this issue still exists or not. We will reopen it as soon as the requested information has been delivered.
Ticket resolved as incomplete, because no answer in a reasonable amount of time (1+ year), if it still happens, please update the ticket.