Updated to Java 1.8 due to previous API change

build.gradle

@@ -31,8 +31,8 @@ group = "cr0s.warpdrive" // http://maven.apache.org/guides/mini/guide-naming-con
 version = "${config.minecraft_version}-${config.mod_version}.${System.getenv("BUILD_NUMBER") ?: '-'}"
 archivesBaseName = "WarpDrive"
 
-sourceCompatibility = JavaVersion.VERSION_1_7
-targetCompatibility = JavaVersion.VERSION_1_7
+sourceCompatibility = JavaVersion.VERSION_1_8
+targetCompatibility = JavaVersion.VERSION_1_8
 
 minecraft {
     version = config.minecraft_version + "-" + config.forge_version
@@ -96,4 +96,4 @@ idea {
     module {
         inheritOutputDirs = true
     }
-}
+}

src/main/java/cr0s/warpdrive/item/ItemForceFieldShape.java

@@ -0,0 +1,119 @@
+package cr0s.warpdrive.item;
+
+import cr0s.warpdrive.WarpDrive;
+import cr0s.warpdrive.api.IShapeProvider;
+import cr0s.warpdrive.data.ComponentType;
+import cr0s.warpdrive.data.ForceFieldShapeType;
+import net.minecraft.client.renderer.texture.IIconRegister;
+import net.minecraft.creativetab.CreativeTabs;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.IIcon;
+import net.minecraft.util.StatCollector;
+
+import java.util.List;
+
+public class ItemForceFieldShape extends Item implements IShapeProvider {	
+	private IIcon[] icons;
+	private static ItemStack[] itemStackCache;
+	
+	public ItemForceFieldShape() {
+		super();
+		setHasSubtypes(true);
+		setUnlocalizedName("warpdrive.forcefield.shapeProvider");
+		setCreativeTab(WarpDrive.creativeTabWarpDrive);
+		
+		icons = new IIcon[ForceFieldShapeType.length];
+		itemStackCache = new ItemStack[ComponentType.length];
+	}
+	
+	public static ItemStack getItemStack(ComponentType componentType) {
+		if (componentType != null) {
+			int damage = componentType.ordinal();
+			if (itemStackCache[damage] == null) {
+				itemStackCache[damage] = new ItemStack(WarpDrive.itemComponent, 1, damage);
+			}
+			return itemStackCache[damage];
+		}
+		return null;
+	}
+	
+	public static ItemStack getItemStackNoCache(ComponentType componentType, int amount) {
+		return new ItemStack(WarpDrive.itemComponent, amount, componentType.ordinal());
+	}
+	
+	@Override
+	public void registerIcons(IIconRegister par1IconRegister) {
+		for(ComponentType componentType : ComponentType.values()) {
+			icons[componentType.ordinal()] = par1IconRegister.registerIcon("warpdrive:component" + componentType.unlocalizedName);
+		}
+	}
+	
+	@Override
+	public String getUnlocalizedName(ItemStack itemStack) {
+		int damage = itemStack.getItemDamage();
+		if (damage >= 0 && damage < ComponentType.length) {
+			return "item.warpdrive.crafting." + ComponentType.get(damage).unlocalizedName;
+		}
+		return getUnlocalizedName();
+	}
+	
+	@Override
+	public IIcon getIconFromDamage(int damage) {
+		if (damage >= 0 && damage < ComponentType.length) {
+			return icons[damage];
+		}
+		return icons[0];
+	}
+	
+	@Override
+	public void getSubItems(Item item, CreativeTabs creativeTab, List list) {
+		for(ComponentType componentType : ComponentType.values()) {
+			list.add(new ItemStack(item, 1, componentType.ordinal()));
+		}
+	}
+	
+	// For empty air canister
+	@Override
+	public boolean canContainAir(ItemStack itemStack) {
+		return (itemStack.getItem() instanceof ItemForceFieldShape && itemStack.getItemDamage() == ComponentType.AIR_CANISTER.ordinal());
+	}
+	
+	@Override
+	public boolean containsAir(ItemStack itemStack) {
+		return false;
+	}
+	
+	@Override
+	public ItemStack fullDrop(ItemStack itemStack) {
+		if (canContainAir(itemStack)) {
+			return WarpDrive.itemAirCanisterFull.fullDrop(itemStack);
+		}
+		return null;
+	}
+	
+	@Override
+	public ItemStack emptyDrop(ItemStack itemStack) {
+		if (canContainAir(itemStack)) {
+			return WarpDrive.itemAirCanisterFull.emptyDrop(itemStack);
+		}
+		return null;
+	}
+	
+	@Override
+	public void addInformation(ItemStack itemStack, EntityPlayer entityPlayer, List list, boolean advancedItemTooltips) {
+		super.addInformation(itemStack, entityPlayer, list, advancedItemTooltips);
+		
+		String tooltip = "";
+		switch (ComponentType.get(itemStack.getItemDamage())) {
+		case AIR_CANISTER:
+			tooltip += StatCollector.translateToLocalFormatted("item.warpdrive.crafting.AirCanisterEmpty.tooltip");
+			break;
+		default:
+			break;
+		}
+		
+		WarpDrive.addTooltip(list, tooltip);
+	}
+}