Fix disk rendering.

Author: Fox2Code

loader/src/main/java/com/fox2code/foxloader/registry/GameRegistry.java

@@ -44,6 +44,7 @@
 import net.minecraft.common.item.ItemStack;
 import net.minecraft.common.item.Items;
 import net.minecraft.common.item.block.ItemBlock;
+import net.minecraft.common.item.children.ItemRecord;
 import net.minecraft.common.networking.NetworkManager;
 import net.minecraft.common.networking.Packet250PluginMessage;
 
@@ -367,7 +368,8 @@ public static int convertItemIdToBlockId(int itemId) {
 
     public static boolean isItemBlock(int itemId) {
         return itemId <= MAXIMUM_TRANSLATED_BLOCK_ID &&
-                (itemId >= INITIAL_TRANSLATED_BLOCK_ID || (itemId <= 255 || (itemId >= 1000)));
+                (itemId >= INITIAL_TRANSLATED_BLOCK_ID || (itemId <= 255 ||
+                        (itemId >= 1000 && !(Items.ITEMS_LIST[itemId] instanceof ItemRecord))));
     }
 
     public static boolean isMissingItemStack(ItemStack itemStack) {

patching/src/main/java/com/fox2code/foxloader/patching/game/RegistryPatch.java

@@ -561,9 +561,13 @@ private static void patchRenderItem(ClassNode classNode) {
         AbstractInsnNode nextFixID = jump.label;
         TransformerUtils.removeInstructionsInRange(renderItemEntity.instructions, prevFixID, nextFixID);
         InsnList toBlockId = new InsnList();
+        toBlockId.add(new VarInsnNode(ILOAD, iStore.var));
+        LabelNode notABlock = new LabelNode();
+        toBlockId.add(new JumpInsnNode(IFEQ, notABlock));
         toBlockId.add(new VarInsnNode(ILOAD, 7));
         toBlockId.add(new MethodInsnNode(INVOKESTATIC, GameRegistry, "convertItemIdToBlockId", "(I)I"));
         toBlockId.add(new VarInsnNode(ISTORE, 7));
+        toBlockId.add(notABlock);
         renderItemEntity.instructions.insert(prevFixID, toBlockId);
     }