CraftingHelperNEI.java

package crazypants.enderio.machine.invpanel.client;

import java.util.ArrayList;
import java.util.List;
import net.minecraft.item.ItemStack;
import cpw.mods.fml.common.Optional;
import codechicken.nei.LayoutManager;
import codechicken.nei.PositionedStack;
import codechicken.nei.api.DefaultOverlayRenderer;
import codechicken.nei.api.IRecipeOverlayRenderer;
import crazypants.enderio.machine.invpanel.InventoryPanelContainer;

public class CraftingHelperNEI extends CraftingHelper {

  public Object overlayRenderer;

  public CraftingHelperNEI(ItemStack[][] ingredients) {
    super(ingredients);
  }

  @Override
  @Optional.Method(modid = "NotEnoughItems")
  public void install() {
    super.install();
    if(overlayRenderer != null) {
      LayoutManager.overlayRenderer = (IRecipeOverlayRenderer) overlayRenderer;
    } else {
      List<PositionedStack> list = new ArrayList<PositionedStack>();
      for(int y = 0; y < 3; y++) {
        for(int x = 0; x < 3; x++) {
          ItemStack[] ingredient = ingredients[y*3+x];
          if(ingredient != null) {
            list.add(new PositionedStack(ingredient,
                    InventoryPanelNEIOverlayHandler.NEI_OFFSET_X + x*18,
                    InventoryPanelNEIOverlayHandler.NEI_OFFSET_Y + y*18));
          }
        }
      }
      LayoutManager.overlayRenderer = new DefaultOverlayRenderer(list, InventoryPanelNEIOverlayHandler.positioner);
    }
  }

  @Override
  @Optional.Method(modid = "NotEnoughItems")
  public void remove() {
    super.remove();
    LayoutManager.overlayRenderer = null;
  }
}