Added documentation on the key ring and fixed some bugs with it

src/main/java/malte0811/industrialWires/client/ClientProxy.java

@@ -179,6 +179,7 @@ public class ClientProxy extends CommonProxy {
 			);
 		}
 		Config.manual_doubleA.put("iwJacobsUsage", IWConfig.HVStuff.jacobsUsageEU);
+		Config.manual_int.put("iwKeysOnRing", IWConfig.maxKeysOnRing);
 		m.addEntry("industrialwires.jacobs", "industrialwires",
 				new ManualPages.CraftingMulti(m, "industrialwires.jacobs0", new ItemStack(IndustrialWires.jacobsLadder, 1, 0), new ItemStack(IndustrialWires.jacobsLadder, 1, 1), new ItemStack(IndustrialWires.jacobsLadder, 1, 2)),
 				new ManualPages.Text(m, "industrialwires.jacobs1"));
@@ -211,6 +212,7 @@ public class ClientProxy extends CommonProxy {
 				new ManualPages.Text(m, "industrialwires.toggle_switch1"),
 				new ManualPages.Crafting(m, "industrialwires.variac", new ItemStack(IndustrialWires.panelComponent, 1, 4)),
 				new ManualPages.CraftingMulti(m, "industrialwires.lock", new ItemStack(IndustrialWires.panelComponent, 1, 7), new ItemStack(IndustrialWires.key)),
+				new ManualPages.Crafting(m, "industrialwires.lock1", new ItemStack(IndustrialWires.key, 1, 2)),
 				new ManualPages.Crafting(m, "industrialwires.panel_meter", new ItemStack(IndustrialWires.panelComponent, 1, 8))
 		);
 	}

src/main/java/malte0811/industrialWires/crafting/RecipeKeyRing.java

@@ -113,6 +113,8 @@ public class RecipeKeyRing extends IForgeRegistryEntry.Impl<IRecipe> implements
 				keys.removeTag(keys.tagCount()-1);
 				if (keys.tagCount() > 0) {
 					NBTTagCompound first = keys.getCompoundTagAt(0);
+					keys.removeTag(0);
+					keys.appendTag(first);
 					nbt.setInteger(LOCK_ID, first.getInteger(LOCK_ID));
 					nbt.setString(NAME, first.getString(NAME));
 				} else {
@@ -146,7 +148,7 @@ public class RecipeKeyRing extends IForgeRegistryEntry.Impl<IRecipe> implements
 		if (addToRing) {
 			return hasKey&&hasRing;
 		} else {
-			return hasKey&&!hasRing;
+			return !hasKey&&hasRing;
 		}
 	}
 

src/main/java/malte0811/industrialWires/items/ItemKey.java

@@ -20,6 +20,7 @@ package malte0811.industrialWires.items;
 
 import malte0811.industrialWires.IndustrialWires;
 import net.minecraft.client.resources.I18n;
+import net.minecraft.client.util.ITooltipFlag;
 import net.minecraft.creativetab.CreativeTabs;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.Item;
@@ -33,6 +34,8 @@ import net.minecraft.world.World;
 import net.minecraftforge.fml.common.registry.GameRegistry;
 
 import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.util.List;
 
 public class ItemKey extends Item implements INetGUIItem {
 	public static final String LOCK_ID = "lockId";
@@ -59,6 +62,17 @@ public class ItemKey extends Item implements INetGUIItem {
 		return super.getItemStackDisplayName(stack);
 	}
 
+	@Override
+	public void addInformation(ItemStack stack, @Nullable World worldIn, List<String> tooltip, ITooltipFlag flagIn) {
+		super.addInformation(stack, worldIn, tooltip, flagIn);
+		if (stack.getMetadata()==2&&stack.getTagCompound()!=null) {
+			NBTTagList keys = stack.getTagCompound().getTagList(RING_KEYS, 10);
+			for (int i = 0;i< keys.tagCount()-1;i++) {
+				tooltip.add(I18n.format("item."+IndustrialWires.MODID+".key.key_named.name")+" "+keys.getCompoundTagAt(i).getString(NAME));
+			}
+		}
+	}
+
 	@Override
 	public void getSubItems(@Nonnull CreativeTabs tab, @Nonnull NonNullList<ItemStack> subItems) {
 		if (isInCreativeTab(tab)) {

src/main/resources/assets/industrialwires/lang/en_US.lang

@@ -142,4 +142,5 @@ ie.manual.entry.industrialwires.toggle_switch=A switch to turn a signal on or of
 ie.manual.entry.industrialwires.toggle_switch1=the switch. The color of the cover can be configured.
 ie.manual.entry.industrialwires.variac=A Variac® is a variable autotransformer. The output signal of the transformer increases as the knob is turned to the right. The signal strenght can only be increased by one unit per click.
 ie.manual.entry.industrialwires.lock=A lock switch activates a redstone signal when a key is inserted and turned. A newly crafted lock will have a unique key configuration. By placing a blank key and a lock in a crafting table a key for the lock can be created. Multiple locks fitting the same key can be created using component copying (see page 1). Keys can be named in a GUI opened by right-clicking with them.
+ie.manual.entry.industrialwires.lock1=Up to <config;I;iwKeysOnRing> can be combined on a key ring. Keys are added to the ring by placing both in a crafting table. Shift-right-click the key ring to cycle through the keys on the ring. The selected key can be removed from the ring by placing the ring in a crafting table. The key ring will work just as the selected key would on lock switches.
 ie.manual.entry.industrialwires.panel_meter=A panel meter can be used to show display analog redstone signals with some accuracy. Panel meters are available in two different formats, wide and narrow. The wide format gives a slightly bigger angle between redstone level 0 and 15, but is more typical for Multimeters that for panel meters.