From 85f15e7c060caad5ba7895729f0da639c864967c Mon Sep 17 00:00:00 2001
From: AlgorithmX2 <AlgorithmX2@gmail.com>
Date: Tue, 22 Apr 2014 20:36:26 -0500
Subject: [PATCH] Pattern Renderer ( for shift )

---
 .../items/ItemEncodedPatternRenderer.java     | 80 +++++++++++++++++++
 items/misc/ItemEncodedPattern.java            |  4 +
 2 files changed, 84 insertions(+)
 create mode 100644 client/render/items/ItemEncodedPatternRenderer.java

diff --git a/client/render/items/ItemEncodedPatternRenderer.java b/client/render/items/ItemEncodedPatternRenderer.java
new file mode 100644
index 00000000..96dc3fc5
--- /dev/null
+++ b/client/render/items/ItemEncodedPatternRenderer.java
@@ -0,0 +1,80 @@
+package appeng.client.render.items;
+
+import net.minecraft.client.renderer.entity.RenderItem;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.nbt.NBTTagList;
+import net.minecraftforge.client.IItemRenderer;
+
+import org.lwjgl.input.Keyboard;
+
+import appeng.util.Platform;
+
+public class ItemEncodedPatternRenderer implements IItemRenderer
+{
+
+	RenderItem ri = new RenderItem();
+	boolean resursive;
+
+	@Override
+	public boolean handleRenderType(ItemStack item, ItemRenderType type)
+	{
+		boolean isShiftHeld = Keyboard.isKeyDown( Keyboard.KEY_LSHIFT ) || Keyboard.isKeyDown( Keyboard.KEY_RSHIFT );
+
+		if ( resursive == false && type == IItemRenderer.ItemRenderType.INVENTORY && isShiftHeld )
+		{
+			if ( readOutput( item ) != null )
+				return true;
+		}
+
+		return false;
+	}
+
+	private ItemStack readOutput(ItemStack item)
+	{
+		NBTTagCompound encodedValue = item.getTagCompound();
+
+		if ( encodedValue == null )
+			return null;
+
+		NBTTagList outTag = encodedValue.getTagList( "out", 10 );
+
+		if ( outTag.tagCount() == 0 )
+			return null;
+
+		ItemStack out = null;
+
+		for (int x = 0; x < outTag.tagCount(); x++)
+		{
+			ItemStack readItem = ItemStack.loadItemStackFromNBT( outTag.getCompoundTagAt( x ) );
+			if ( readItem != null )
+			{
+				if ( out == null )
+					out = readItem;
+				else if ( out != null && Platform.isSameItemPrecise( readItem, out ) )
+					out.stackSize += readItem.stackSize;
+			}
+		}
+
+		return out;
+	}
+
+	@Override
+	public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper)
+	{
+		return false;
+	}
+
+	@Override
+	public void renderItem(ItemRenderType type, ItemStack item, Object... data)
+	{
+		resursive = true;
+
+		ItemStack is = readOutput( item );
+		// data is just render blocks.
+
+		// ri.renderItemAndEffectIntoGUI( par1FontRenderer, par2TextureManager, par3ItemStack, par4, par5 );
+
+		resursive = false;
+	}
+}
diff --git a/items/misc/ItemEncodedPattern.java b/items/misc/ItemEncodedPattern.java
index 9233aec1..db849922 100644
--- a/items/misc/ItemEncodedPattern.java
+++ b/items/misc/ItemEncodedPattern.java
@@ -7,8 +7,10 @@ import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
+import net.minecraftforge.client.MinecraftForgeClient;
 import appeng.api.crafting.ICraftingPatternDetails;
 import appeng.api.implementations.ICraftingPatternItem;
+import appeng.client.render.items.ItemEncodedPatternRenderer;
 import appeng.core.features.AEFeature;
 import appeng.core.localization.GuiText;
 import appeng.items.AEBaseItem;
@@ -21,6 +23,8 @@ public class ItemEncodedPattern extends AEBaseItem implements ICraftingPatternIt
 		super( ItemEncodedPattern.class );
 		setfeature( EnumSet.of( AEFeature.Crafting ) );
 		setMaxStackSize( 1 );
+		if ( Platform.isClient() )
+			MinecraftForgeClient.registerItemRenderer( this, new ItemEncodedPatternRenderer() );
 	}
 
 	@Override