1.14.4 Block not dropping loot when material is set to WEB.

[salvestrom]

Edit: altered the title to more accurately reflect the problem. Please see four posts down almost up-to-date information.

 

I set up all of the loot tables for my blocks and discovered one of them is not working. I have tried various versions of the file, Even the most simple table possible had noeffect. The version below is a direct copy paste from vanilla cobweb and hasn't even had the drops altered.

 

Spoiler

{
  "type": "minecraft:block",
  "pools": [
    {
      "rolls": 1,
      "entries": [
        {
          "type": "minecraft:alternatives",
          "children": [
            {
              "type": "minecraft:item",
              "conditions": [
                {
                  "condition": "minecraft:alternative",
                  "terms": [
                    {
                      "condition": "minecraft:match_tool",
                      "predicate": {
                        "item": "minecraft:shears"
                      }
                    },
                    {
                      "condition": "minecraft:match_tool",
                      "predicate": {
                        "enchantments": [
                          {
                            "enchantment": "minecraft:silk_touch",
                            "levels": {
                              "min": 1
                            }
                          }
                        ]
                      }
                    }
                  ]
                }
              ],
              "name": "minecraft:cobweb"
            },
            {
              "type": "minecraft:item",
              "conditions": [
                {
                  "condition": "minecraft:survives_explosion"
                }
              ],
              "name": "minecraft:string"
            }
          ]
        }
      ]
    }
  ]
}

 

I have used breakpoints on every single piece of code in the block class that references dropping blocks and none of them appear to be triggered. I have been able to verify that the block item is being registered (again, this is one amongst a dozen blocks all being registered in the same way). There are no errors/crashes in the console. Simply, nothing seems to drop. The block item registry name is set by calling the blocks registry name. There doesn't appear to be any other spelling issues. I have got to be missing something very simple.

Also, the blocks class is an extension of the ladder class, comprised of an override for on entity collision which slows down any entities on the custom block and a redundant override of getitem() and getDrops() which was done to insert a system out (which produced nothing).

Edited November 8, 2019 by salvestrom
Clarification

[Draco18s]

Whoops, it didn't copy correctly. Valid json is valid. Hmm.

Edited November 5, 2019 by Draco18s

[salvestrom]

Update/clarification:
I set breakpoints on every single getDrops and spawnDrops method in block, as well as getLootTable and spawnAsEntity (simultaneously). I also overrode getLootTable in two of my block classes, using system counts to state that it had arrived at the code as well as display what the result of the super call is. The results were this:

• During model loading the breakpoints for getLootTable were triggered for every single block, including mine, including the climbing web. This method was triggered again on world load.
• I broke three blocks: dirt, a random one of mine and climbing web. The first two triggered multiple breakpoints in succession, the climbing web breaking triggered none of it.

How can the game recognise the loot table while loading yet not even try to drop loot once in game?

Again I note that my block extends the ladder, but the ladder itself contains nothing unusual. Besides, I have another ladder which doesn't have any issues.

[salvestrom]

Additional Breakpoint testing has revealed the issue is centred around this piece of code from the PlayerInteractionManager class. The flag and flag1 if statement is not being passed and so harvest block is not being run.

               boolean flag1 = blockstate.canHarvestBlock(this.world, pos, this.player);
               itemstack.onBlockDestroyed(this.world, blockstate, pos, this.player);
               if (itemstack.isEmpty() && !copy.isEmpty()) {
                  net.minecraftforge.event.ForgeEventFactory.onPlayerDestroyItem(this.player, copy, Hand.MAIN_HAND);
               }
               boolean flag = removeBlock(pos, flag1);
               if (flag && flag1) {
                  ItemStack itemstack1 = itemstack.isEmpty() ? ItemStack.EMPTY : itemstack.copy();
                  block.harvestBlock(this.world, this.player, pos, blockstate, tileentity, itemstack1);
               }

Remove block seemed pretty innocuous so I focused on canHarvestBlock. Looking into this led me to realise/discover that my climbing web, since it is using Material.WEB has a requires tool check and swords and shears are hardcoded for the Cobweb block. Quite how this is affecting things, I don't know, but when I changed the material to WOOD which has no tool requirement, the items began dropping correctly.If I want to continue using web as the material am I going to need to use the forge hook for canHarvestBlock? Or is there something else I'm missing…