1 files changed, 188 insertions, 0 deletions
diff --git a/src/main/java/gtPlusPlus/xmod/gregtech/common/helpers/VolumetricFlaskHelper.java b/src/main/java/gtPlusPlus/xmod/gregtech/common/helpers/VolumetricFlaskHelper.java
new file mode 100644
index 0000000000..575e094696
--- /dev/null
+++ b/src/main/java/gtPlusPlus/xmod/gregtech/common/helpers/VolumetricFlaskHelper.java
@@ -0,0 +1,188 @@
+package gtPlusPlus.xmod.gregtech.common.helpers;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+
+import gtPlusPlus.api.objects.Logger;
+import gtPlusPlus.core.lib.CORE;
+import gtPlusPlus.core.util.minecraft.ItemUtils;
+import gtPlusPlus.core.util.reflect.ReflectionUtils;
+import gtPlusPlus.xmod.gregtech.api.enums.GregtechItemList;
+import gtPlusPlus.xmod.gregtech.common.Meta_GT_Proxy;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraftforge.fluids.FluidStack;
+
+public class VolumetricFlaskHelper {
+
+	private static final Class sClassVolumetricFlask;
+	private static final Method sMethodGetFlaskMaxCapacity;
+	private static Item mFlask;
+
+	static {
+		if (Meta_GT_Proxy.sDoesVolumetricFlaskExist) {
+			sClassVolumetricFlask = ReflectionUtils.getClass("gregtech.common.items.GT_VolumetricFlask");
+			Method aMaxCapacity = null;
+			try {
+				aMaxCapacity = sClassVolumetricFlask.getDeclaredMethod("getMaxCapacity", new Class[] {});
+			}
+			catch (NoSuchMethodException e) {
+				e.printStackTrace();
+				CORE.crash("Secondary Error Obtaining instance of 'getMaxCapacity' from 'GT_VolumetricFlask'. Crashing.");
+			}
+			sMethodGetFlaskMaxCapacity = aMaxCapacity;
+		}
+		else {
+			sClassVolumetricFlask = null;
+			sMethodGetFlaskMaxCapacity = null;
+		}
+	}
+
+	public static ItemStack getVolumetricFlask(int aAmount) {
+		ItemStack aFlask = ItemUtils.getValueOfItemList("VOLUMETRIC_FLASK", aAmount, (ItemStack) null);
+		return aFlask;
+	}
+
+	public static ItemStack getLargeVolumetricFlask(int aAmount) {
+		ItemStack aFlask = GregtechItemList.VOLUMETRIC_FLASK_8k.get(aAmount);
+		return aFlask;
+	}
+
+	public static ItemStack getGiganticVolumetricFlask(int aAmount) {
+		ItemStack aFlask = GregtechItemList.VOLUMETRIC_FLASK_32k.get(aAmount);
+		return aFlask;
+	}
+
+	public static boolean isVolumetricFlask(ItemStack aStack) {
+		if (isNormalVolumetricFlask(aStack) || isLargeVolumetricFlask(aStack) || isGiganticVolumetricFlask(aStack)) {
+			return true;
+		}
+		return false;
+	}
+
+	public static boolean isNormalVolumetricFlask(ItemStack aStack) {
+		if (mFlask == null) {
+			ItemStack aFlask = ItemUtils.getValueOfItemList("VOLUMETRIC_FLASK", 1, (ItemStack) null);
+			if (aFlask != null) {
+				mFlask = aFlask.getItem();				
+			}
+		}
+		if (aStack.getItem() == mFlask) {
+			return true;
+		}
+		return false;
+	}
+
+	public static boolean isLargeVolumetricFlask(ItemStack aStack) {
+		if (GregtechItemList.VOLUMETRIC_FLASK_8k.getItem() == aStack.getItem()) {
+			return true;
+		}
+		return false;
+	}
+
+	public static boolean isGiganticVolumetricFlask(ItemStack aStack) {
+		if (GregtechItemList.VOLUMETRIC_FLASK_32k.getItem() == aStack.getItem()) {
+			return true;
+		}
+		return false;
+	}
+
+	public static int getMaxFlaskCapacity(ItemStack aStack) {
+		if (aStack != null && sMethodGetFlaskMaxCapacity != null) {
+			Item aItem = aStack.getItem();
+			if (sClassVolumetricFlask.isInstance(aItem)) {
+				int aMaxCapacity = (int) ReflectionUtils.invokeNonBool(aItem, sMethodGetFlaskMaxCapacity, new Object[] {});
+				return aMaxCapacity;
+			}
+		}
+		return 0;
+	}
+
+	public static boolean isFlaskEmpty(ItemStack aStack) {
+		return getFlaskFluid(aStack) == null;
+	}
+
+	public static FluidStack getFlaskFluid(ItemStack aStack) {
+		if (aStack.hasTagCompound()) {
+			NBTTagCompound nbt = aStack.getTagCompound();
+			if (nbt.hasKey("Fluid", 10))
+				return FluidStack.loadFluidStackFromNBT(nbt.getCompoundTag("Fluid"));
+		}
+		return null;
+	}
+
+	public static void setFluid(ItemStack stack, FluidStack fluidStack) {
+		boolean removeFluid = (fluidStack == null) || (fluidStack.amount <= 0);
+		NBTTagCompound nbt = stack.getTagCompound();
+		if (nbt == null) {
+			if (removeFluid)
+				return;
+			stack.setTagCompound(nbt = new NBTTagCompound());
+		}
+		if (removeFluid) {
+			nbt.removeTag("Fluid");
+			if (nbt.hasNoTags()) {
+				stack.setTagCompound(null);
+			}
+		} else {
+			nbt.setTag("Fluid", fluidStack.writeToNBT(new NBTTagCompound()));
+		}
+	}
+
+	public static int getFlaskCapacity(ItemStack aStack) {
+		int capacity = 1000;
+		if (aStack.hasTagCompound()) {
+			NBTTagCompound nbt = aStack.getTagCompound();
+			if (nbt.hasKey("Capacity", 3))
+				capacity = nbt.getInteger("Capacity");
+		}
+		return Math.min(getMaxFlaskCapacity(aStack), capacity);
+	}
+
+	public static boolean setNewFlaskCapacity(ItemStack aStack, int aCapacity) {
+		if (aStack == null || aCapacity <= 0) {
+			return false;
+		}		
+		aCapacity = Math.min(aCapacity, getMaxFlaskCapacity(aStack));
+		NBTTagCompound nbt = aStack.getTagCompound();
+		if (nbt == null) {
+			aStack.setTagCompound(nbt = new NBTTagCompound());
+		}
+		nbt.setInteger("Capacity", aCapacity);
+		return true;
+	}
+	
+    public static int fillFlask(ItemStack stack, FluidStack resource, boolean doFill) {
+        if (stack.stackSize != 1)
+            return 0;
+        if ((resource == null) || (resource.amount <= 0)) {
+            return 0;
+        }
+        FluidStack fluidStack = getFlaskFluid(stack);
+        if (fluidStack == null) {
+            fluidStack = new FluidStack(resource, 0);
+        } else if (!fluidStack.isFluidEqual(resource)) {
+            return 0;
+        }
+        int amount = Math.min(getMaxFlaskCapacity(stack) - fluidStack.amount, resource.amount);
+        if ((doFill) && (amount > 0)) {
+            fluidStack.amount += amount;
+            setFluid(stack, fluidStack);
+        }
+        return amount;
+    }
+
+	public static Item generateNewFlask(String unlocalized, String english, int maxCapacity) {
+		Constructor aFlask = ReflectionUtils.getConstructor(sClassVolumetricFlask, new Class[] {String.class, String.class, int.class});
+		if (aFlask != null) {			
+			Object aInstance = ReflectionUtils.createNewInstanceFromConstructor(aFlask, new Object[] {unlocalized, english, maxCapacity});
+			if (aInstance != null && aInstance instanceof Item) {
+				Item aNewFlaskItem = (Item) aInstance;
+				return aNewFlaskItem;
+			}
+		}
+		return null;		
+	}
+
+}