2 files changed, 77 insertions(+), 0 deletions(-)

A readme.md
A src/minecraft/ae/humaidq/minimod/jukehopper/HopperUtils.java

@@ 1,23 @@
+# Jukebox Hopper mod
+
+This is a mod which allows the player to use a hopper
+to insert a record into a Jukebox in Minecraft.  
+
+## Building
+
+1. Copy the directory into your [MCP](https://minecraft.gamepedia.com/Programs_and_editors/Mod_Coder_Pack) workspace.
+2. Locate method `transferItemsOut()` in `net.minecraft.tileentity`.
+3. Add the snippet below at the start of the method.
+
+Snippet:
+```java
+if(JukeboxHopperMod.canTransferRecord(this)){
+    JukeboxHopperMod.transferRecord(this);
+    return true;
+}
+```
+
+You should be able to reobfuscate/startclient.  
+Tested with Minecraft 1.12, if you are using a newer version you may
+need to change a few things before it can run.  
+

@@ 1,54 @@
+package ae.humaidq.minimod.jukehopper;
+import net.minecraft.block.Block;
+public class HopperUtils {
+
+    public static boolean canTransferRecord(TileEntityHopper entityHopper) {
+        return (getJukeboxFromHopper(entityHopper) != null);
+    }
+
+    public static void transferRecord(TileEntityHopper entityHopper) {
+        for (int i = 0; i < entityHopper.getSizeInventory(); ++i) {
+            if (!entityHopper.getStackInSlot(i).func_190926_b()) {
+                ItemStack itemstack = entityHopper.getStackInSlot(i).copy();
+                if (itemstack.getItem() instanceof ItemRecord) {
+                    BlockJukebox.TileEntityJukebox jbe = getJukeboxFromHopper(entityHopper);
+                    if (jbe != null) {
+                        ItemStack decr = entityHopper.decrStackSize(i, 1);
+                        BlockPos blockpos = getFacingBlockPos(entityHopper);
+                        jbe.setRecord(itemstack.copy());
+                        entityHopper.getWorld().setBlockState(blockpos, entityHopper.getWorld().getBlockState(blockpos).withProperty(BlockJukebox.HAS_RECORD, true), 2);
+                        entityHopper.getWorld().playEvent(null, 1010, blockpos, Item.getIdFromItem(decr.getItem()));
+                        decr.func_190918_g(1); // decrement
+                        entityHopper.setInventorySlotContents(i, decr);
+                    }
+                }
+            }
+
+        }
+    }
+
+    private static BlockPos getFacingBlockPos(TileEntityHopper entityHopper) {
+        EnumFacing enumfacing = BlockHopper.getFacing(entityHopper.getBlockMetadata());
+        int x = MathHelper.floor(entityHopper.getXPos() + (double) enumfacing.getFrontOffsetX());
+        int y = MathHelper.floor(entityHopper.getYPos() + (double) enumfacing.getFrontOffsetY());
+        int z = MathHelper.floor(entityHopper.getZPos() + (double) enumfacing.getFrontOffsetZ());
+        return new BlockPos(x, y, z);
+    }
+
+    private static BlockJukebox.TileEntityJukebox getJukeboxFromHopper(TileEntityHopper entityHopper) {
+        BlockJukebox.TileEntityJukebox jb = null;
+        BlockPos blockpos = getFacingBlockPos(entityHopper);
+        World worldIn = entityHopper.getWorld();
+        Block block = worldIn.getBlockState(blockpos).getBlock();
+        if (block.hasTileEntity()) {
+            TileEntity tileentity = worldIn.getTileEntity(blockpos);
+            if (tileentity instanceof BlockJukebox.TileEntityJukebox) {
+                IBlockState blockstate = worldIn.getBlockState(blockpos);
+                if (!blockstate.getValue(BlockJukebox.HAS_RECORD)) {
+                    jb = ((BlockJukebox.TileEntityJukebox) tileentity);
+                }
+            }
+        }
+        return jb;
+    }
+}