diff --git a/src/main/java/pers/towdium/tudicraft/core/Calculator.java b/src/main/java/pers/towdium/tudicraft/core/Calculator.java
index 0670dcc..71dbaea 100644
--- a/src/main/java/pers/towdium/tudicraft/core/Calculator.java
+++ b/src/main/java/pers/towdium/tudicraft/core/Calculator.java
@@ -239,6 +239,36 @@ public class Calculator {
             }
             input = builder.build();
         }
+
+        public ItemStack[] getOutputStack(){
+            ItemStack[] outputStack = new ItemStack[output.size()];
+            int i = 0;
+            for (ItemRecord record : output){
+                outputStack[i] = record.toItemStack();
+                i++;
+            }
+            return outputStack;
+        }
+
+        public ItemStack[] getInputStack(){
+            ItemStack[] inputStack = new ItemStack[input.size()];
+            int i = 0;
+            for (ItemRecord record : input){
+                inputStack[i] = record.toItemStack();
+                i++;
+            }
+            return inputStack;
+        }
+
+        public ItemStack[] getCatalystStack(){
+            ItemStack[] catalystStack = new ItemStack[catalyst.size()];
+            int i = 0;
+            for (ItemRecord record : catalyst){
+                catalystStack[i] = record.toItemStack();
+                i++;
+            }
+            return catalystStack;
+        }
     }
 }
 
diff --git a/src/main/java/pers/towdium/tudicraft/core/ItemRecord.java b/src/main/java/pers/towdium/tudicraft/core/ItemRecord.java
index 19ff989..81edebd 100644
--- a/src/main/java/pers/towdium/tudicraft/core/ItemRecord.java
+++ b/src/main/java/pers/towdium/tudicraft/core/ItemRecord.java
@@ -2,6 +2,7 @@ package pers.towdium.tudicraft.core;
 
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
 
 /**
  * @author Towdium
@@ -75,6 +76,10 @@ public class ItemRecord{
     }
 
     public ItemStack toItemStack(){
-        return new ItemStack(item, (int) amount, meta);
+        ItemStack itemStack = new ItemStack(item, 1, meta);
+        NBTTagCompound tagCompound = new NBTTagCompound();
+        tagCompound.setLong("amount", amount);
+        itemStack.setTagCompound(tagCompound);
+        return itemStack;
     }
 }
diff --git a/src/main/java/pers/towdium/tudicraft/core/ItemStackWrapper.java b/src/main/java/pers/towdium/tudicraft/core/ItemStackWrapper.java
index 5951aa2..076a3b1 100644
--- a/src/main/java/pers/towdium/tudicraft/core/ItemStackWrapper.java
+++ b/src/main/java/pers/towdium/tudicraft/core/ItemStackWrapper.java
@@ -58,6 +58,13 @@ public class ItemStackWrapper {
         return itemStack.stackSize*100;
     }
 
+    public static String getDisplayAmount(ItemStack itemStack){
+        if(itemStack != null && itemStack.getTagCompound() != null){
+            return itemStack.getTagCompound().getLong("amount")+"";
+        }
+        else return "";
+    }
+
     public static class NBT {
         public static void initNBT(ItemStack itemStack){
             if(!itemStack.hasTagCompound()){
@@ -100,5 +107,12 @@ public class ItemStackWrapper {
             }
             else return "";
         }
+
+        public static long getLong(ItemStack dest, String key){
+            if(dest.getTagCompound() != null){
+                return dest.getTagCompound().getLong(key);
+            }
+            else return 0;
+        }
     }
 }
diff --git a/src/main/java/pers/towdium/tudicraft/event/GuiEventHandler.java b/src/main/java/pers/towdium/tudicraft/event/GuiEventHandler.java
index 3b96275..f10a136 100644
--- a/src/main/java/pers/towdium/tudicraft/event/GuiEventHandler.java
+++ b/src/main/java/pers/towdium/tudicraft/event/GuiEventHandler.java
@@ -32,7 +32,7 @@ public class GuiEventHandler {
     @SubscribeEvent(priority = EventPriority.HIGH)
     public void onMouseClick(GuiScreenEvent.MouseInputEvent.Pre event){
         if(event.gui instanceof GuiRecipeEditor){
-            if(new Date().getTime() - time < 500){
+            if(new Date().getTime() - time < 200){
                 event.setCanceled(true);
                 return;
             }
@@ -60,20 +60,33 @@ public class GuiEventHandler {
                 }
             }
         }else if(event.gui instanceof GuiCalculator){
+            if(new Date().getTime() - time < 200){
+                event.setCanceled(true);
+                return;
+            }
             if (((GuiCalculator) event.gui).getActiveSlot() == 0){
-                Slot slot = ((GuiCalculator) event.gui).inventorySlots.getSlot(((GuiCalculator) event.gui).getActiveSlot());
+                Slot slot = ((GuiCalculator) event.gui).inventorySlots.getSlot(0);
                 ItemStack itemStack = JEIPlugin.runtime.getItemListOverlay().getStackUnderMouse();
-                if (itemStack != null){
-                    slot.inventory.setInventorySlotContents(slot.getSlotIndex(), itemStack);
-                }
+                slot.inventory.setInventorySlotContents(slot.getSlotIndex(), itemStack);
                 if (Mouse.isButtonDown(0)){
-                    ((GuiCalculator) event.gui).setActiveSlot(-1);
+                    time = new Date().getTime();
+                    Slot slot1 = ((GuiCalculator) event.gui).getSlotUnderMouse();
+                    if(slot1 != null){
+                        ((GuiCalculator) event.gui).setActiveSlot(slot1.getSlotIndex());
+                    }else {
+                        ((GuiCalculator) event.gui).setActiveSlot(-1);
+                    }
                     ((ContainerCalculator)((GuiCalculator) event.gui).inventorySlots).getPlayer().playSound("random.click", 1f, 1f );
                     event.setCanceled(true);
                 }
             } else if(((GuiCalculator) event.gui).getActiveSlot() != -1) {
                 if (Mouse.isButtonDown(0)){
-                    ((GuiCalculator) event.gui).setActiveSlot(-1);
+                    Slot slot1 = ((GuiCalculator) event.gui).getSlotUnderMouse();
+                    if(slot1 != null){
+                        ((GuiCalculator) event.gui).setActiveSlot(slot1.getSlotIndex());
+                    }else {
+                        ((GuiCalculator) event.gui).setActiveSlot(-1);
+                    }
                     ((ContainerCalculator)((GuiCalculator) event.gui).inventorySlots).getPlayer().playSound("random.click", 1f, 1f );
                     event.setCanceled(true);
                 }
diff --git a/src/main/java/pers/towdium/tudicraft/gui/GuiTooltipScreen.java b/src/main/java/pers/towdium/tudicraft/gui/GuiTooltipScreen.java
index 81728cb..4c03615 100644
--- a/src/main/java/pers/towdium/tudicraft/gui/GuiTooltipScreen.java
+++ b/src/main/java/pers/towdium/tudicraft/gui/GuiTooltipScreen.java
@@ -6,6 +6,7 @@ import java.util.ArrayList;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.client.renderer.RenderHelper;
 import net.minecraft.inventory.Container;
 
 /**
@@ -45,8 +46,9 @@ public abstract class GuiTooltipScreen extends GuiContainer
     public void drawScreen(int mouseX, int mouseY, float f)
     {
         super.drawScreen(mouseX, mouseY, f);
-
+        RenderHelper.disableStandardItemLighting();
         DrawTooltipScreen(mouseX, mouseY);
+        RenderHelper.enableStandardItemLighting();
     }
 
     /**
@@ -60,8 +62,6 @@ public abstract class GuiTooltipScreen extends GuiContainer
     /**
      * Renders any special effects applied to tooltip buttons, and renders any tooltips for GuiButtons 
      * that are being mouseovered.
-     * @param mouseX
-     * @param mouseY
      */
     protected void DrawTooltipScreen(int mouseX, int mouseY)
     {
@@ -71,15 +71,11 @@ public abstract class GuiTooltipScreen extends GuiContainer
         int mousedOverButtonId = -1;
 
         //find out which button is being mouseovered
-        for(int i = 0; i < buttonList.size(); i++)
-        {
-            GuiButton button = (GuiButton)buttonList.get(i);
-
-            if(IsButtonMouseovered(mouseX, mouseY, button))
-            {
+        for (GuiButton button : buttonList) {
+            if (IsButtonMouseovered(mouseX, mouseY, button)) {
                 mousedOverButtonId = button.id;
 
-                if(ShowTooltipButtonMouseoverEffect && GetButtonTooltip(mousedOverButtonId) != null)
+                if (ShowTooltipButtonMouseoverEffect && GetButtonTooltip(mousedOverButtonId) != null)
                     RenderTooltipButtonMouseoverEffect(button);
 
                 break;
@@ -114,9 +110,6 @@ public abstract class GuiTooltipScreen extends GuiContainer
 
     /**
      * Determines if a GuiButton is being mouseovered.
-     * @param mouseX
-     * @param mouseY
-     * @param button
      * @return true if this button is mouseovered
      */
     protected boolean IsButtonMouseovered(int mouseX, int mouseY, GuiButton button)
@@ -130,15 +123,11 @@ public abstract class GuiTooltipScreen extends GuiContainer
      */
     protected void RenderTooltipButtonEffect()
     {
-        for(int i = 0; i < buttonList.size(); i++)
-        {
-            GuiButton button = buttonList.get(i);
-
-            if(GetButtonTooltip(button.id) != null)
-            {
+        for (GuiButton button : buttonList) {
+            if (GetButtonTooltip(button.id) != null) {
                 boolean flag = mc.fontRendererObj.getUnicodeFlag();
                 mc.fontRendererObj.setUnicodeFlag(true);
-                mc.fontRendererObj.drawStringWithShadow("?", button.xPosition+button.getButtonWidth()-5, button.yPosition, 0x99FFFFFF);
+                mc.fontRendererObj.drawStringWithShadow("?", button.xPosition + button.getButtonWidth() - 7, button.yPosition + 1, 14737632);
                 mc.fontRendererObj.setUnicodeFlag(flag);
             }
         }
@@ -146,21 +135,17 @@ public abstract class GuiTooltipScreen extends GuiContainer
 
     /**
      * Render anything special onto buttons that have tooltips assigned to them when they are mousevered.
-     * @param button
      */
     protected void RenderTooltipButtonMouseoverEffect(GuiButton button)
     {
         boolean flag = mc.fontRendererObj.getUnicodeFlag();
         mc.fontRendererObj.setUnicodeFlag(true);
-        mc.fontRendererObj.drawStringWithShadow(FontCodes.AQUA + "?", button.xPosition+button.getButtonWidth()-5, button.yPosition, 0xFFFFFF);
+        mc.fontRendererObj.drawStringWithShadow(FontCodes.AQUA + "?", button.xPosition+button.getButtonWidth()-7, button.yPosition+1, 14737632);
         mc.fontRendererObj.setUnicodeFlag(flag);
     }
 
     /**
      * Renders a tooltip at (x,y).
-     * @param x
-     * @param y
-     * @param tooltip
      */
     protected void RenderTooltip(int x, int y, String tooltip)
     {
@@ -211,24 +196,20 @@ public abstract class GuiTooltipScreen extends GuiContainer
     {
         s = DecodeStringCodes(s);
         String[] tooltipSections = s.split(tooltipNewlineDelimeter);
-        ArrayList<String> tooltipArrayList = new ArrayList<String>();
+        ArrayList<String> tooltipArrayList = new ArrayList<>();
 
         for(String section : tooltipSections)
         {
             String tooltip = "";
             String[] tooltipWords = section.split(" ");
 
-            for(int i = 0; i < tooltipWords.length; i++)
-            {
-                int lineWidthWithNextWord = mc.fontRendererObj.getStringWidth(tooltip + tooltipWords[i]);
-                if(lineWidthWithNextWord > tooltipMaxWidth)
-                {
+            for (String tooltipWord : tooltipWords) {
+                int lineWidthWithNextWord = mc.fontRendererObj.getStringWidth(tooltip + tooltipWord);
+                if (lineWidthWithNextWord > tooltipMaxWidth) {
                     tooltipArrayList.add(tooltip.trim());
-                    tooltip = tooltipWords[i] + " ";
-                }
-                else
-                {
-                    tooltip += tooltipWords[i] + " ";
+                    tooltip = tooltipWord + " ";
+                } else {
+                    tooltip += tooltipWord + " ";
                 }
             }
 
@@ -274,8 +255,6 @@ public abstract class GuiTooltipScreen extends GuiContainer
 
     /***
      * Gets the width of the tooltip in pixels.
-     * @param tooltipArray
-     * @return
      */
     private int GetTooltipWidth(String[] tooltipArray)
     {
@@ -291,8 +270,6 @@ public abstract class GuiTooltipScreen extends GuiContainer
 
     /**
      * Gets the height of the tooltip in pixels.
-     * @param tooltipArray
-     * @return
      */
     private int GetTooltipHeight(String[] tooltipArray)
     {
@@ -304,47 +281,6 @@ public abstract class GuiTooltipScreen extends GuiContainer
         return tooltipHeight;
     }
 
-    /**
-     * Gets a protected/private field from a class using reflection.
-     * @param <T> The return type of the field you are getting
-     * @param <E> The class the field is in
-     * @param classToAccess The ".class" of the class the field is in
-     * @param instance The instance of the class
-     * @param fieldNames comma seperated names the field may have (i.e. obfuscated, non obfuscated).
-     * Obfustated field names can be found in fml/conf/fields.csv
-     * @return
-     */
-    public static <T, E> T GetFieldByReflection(Class<? super E> classToAccess, E instance, String... fieldNames)
-    {
-        Field field = null;
-        for(String fieldName : fieldNames)
-        {
-            try
-            {
-                field = classToAccess.getDeclaredField(fieldName);
-            }
-            catch(NoSuchFieldException e){}
-
-            if(field != null)
-                break;
-        }
-
-        if(field != null)
-        {
-            field.setAccessible(true);
-            T fieldT = null;
-            try
-            {
-                fieldT = (T) field.get(instance);
-            }
-            catch (IllegalArgumentException e){}
-            catch (IllegalAccessException e){}
-
-            return fieldT;
-        }
-
-        return null;
-    }
 
     public class FontCodes
     {
diff --git a/src/main/java/pers/towdium/tudicraft/gui/calculator/GuiCalculator.java b/src/main/java/pers/towdium/tudicraft/gui/calculator/GuiCalculator.java
index 57139ec..29db9c2 100644
--- a/src/main/java/pers/towdium/tudicraft/gui/calculator/GuiCalculator.java
+++ b/src/main/java/pers/towdium/tudicraft/gui/calculator/GuiCalculator.java
@@ -6,11 +6,8 @@ import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiTextField;
 import net.minecraft.client.renderer.GlStateManager;
 import net.minecraft.client.renderer.entity.RenderItem;
-import net.minecraft.client.renderer.texture.TextureMap;
-import net.minecraft.client.resources.model.IBakedModel;
 import net.minecraft.client.resources.model.ModelManager;
 import net.minecraft.inventory.Slot;
-import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.StatCollector;
@@ -20,26 +17,27 @@ import pers.towdium.tudicraft.core.ItemStackWrapper;
 import pers.towdium.tudicraft.gui.GuiTooltipScreen;
 import pers.towdium.tudicraft.gui.recipeEditor.ContainerRecipeEditor;
 import pers.towdium.tudicraft.gui.recipeEditor.GuiRecipeEditor;
-import pers.towdium.tudicraft.network.packages.PackageCalculatorUpdate;
 
 import java.io.IOException;
 import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-import java.util.List;
+import java.util.Timer;
+import java.util.TimerTask;
 
 /**
  * @author Towdium
  */
 public class GuiCalculator extends GuiTooltipScreen{
     GuiTextField textFieldAmount;
-    GuiButton edit;
+    GuiButton editButton;
+    GuiButton modeButton;
     Calculator.CostRecord costRecord;
     int activeSlot = -1;
     int page = 1;
-    EnumMode mode = EnumMode.input;
+    int total = 1;
+    EnumMode mode = EnumMode.INPUT;
 
 
-    public enum EnumMode {input, output, catalyst}
+    public enum EnumMode {INPUT, OUTPUT, CATALYST}
 
     public GuiCalculator(ContainerCalculator containerCalculator){
         super(containerCalculator);
@@ -48,14 +46,16 @@ public class GuiCalculator extends GuiTooltipScreen{
     @Override
     public void initGui() {
         super.initGui();
-        edit = new GuiButton(3, guiLeft+125, guiTop+31, 44, 20, StatCollector.translateToLocal("gui.calculator.edit"));
-        edit.enabled = false;
+        editButton = new GuiButton(3, guiLeft+90, guiTop+7, 37, 20, StatCollector.translateToLocal("gui.calculator.edit"));
+        editButton.enabled = false;
         buttonList.add(new GuiButton(1, guiLeft+7, guiTop+31, 79, 20, StatCollector.translateToLocal("gui.calculator.calculate")));
-        buttonList.add(new GuiButton(2, guiLeft+125, guiTop+7, 44, 20, StatCollector.translateToLocal("gui.calculator.add")));
-        buttonList.add(edit);
+        buttonList.add(new GuiButton(2, guiLeft+131, guiTop+7, 37, 20, StatCollector.translateToLocal("gui.calculator.add")));
+        buttonList.add(editButton);
         buttonList.add(new GuiButton(4, guiLeft+7, guiTop+139, 20, 20, "<"));
         buttonList.add(new GuiButton(5, guiLeft+149, guiTop+139, 20, 20, ">"));
-        textFieldAmount = new GuiTextField(0, fontRendererObj, guiLeft+39, guiTop+8, 44, 18);
+        modeButton = new GuiButton(6, guiLeft+90, guiTop+31, 79, 20, StatCollector.translateToLocal("gui.calculator.input"));
+        buttonList.add(modeButton);
+        textFieldAmount = new GuiTextField(0, fontRendererObj, guiLeft+39, guiTop+8, 45, 18);
         Slot dest = inventorySlots.getSlot(0);
         ItemStack itemStack = ((ContainerCalculator)inventorySlots).getPlayer().getHeldItem();
         dest.inventory.setInventorySlotContents(dest.getSlotIndex(), ItemStackWrapper.NBT.getItem(itemStack, "dest"));
@@ -79,7 +79,8 @@ public class GuiCalculator extends GuiTooltipScreen{
 
     @Override
     protected void drawGuiContainerForegroundLayer(int p_146979_1_, int p_146979_2_) {
-        this.fontRendererObj.drawString("x", 30, 13, 4210752);
+        fontRendererObj.drawString("x", 30, 13, 4210752);
+        drawCenteredStringWithoutShadow(fontRendererObj, page + " / " + total, 88, 145, 4210752);
     }
 
     @Override
@@ -97,15 +98,43 @@ public class GuiCalculator extends GuiTooltipScreen{
         switch (button.id){
             case 1:
                 if(inventorySlots.getSlot(0).getStack() != null){
-                    Calculator calculator = new Calculator(inventorySlots.getSlot(0).getStack(), Integer.valueOf(textFieldAmount.getText()));
-                    Calculator.CostRecord record = calculator.getCost();
-                    record.unify();
-                    costRecord = record;
+                    try{
+                        int i = Integer.valueOf(textFieldAmount.getText());
+                        Calculator calculator = new Calculator(inventorySlots.getSlot(0).getStack(), i);
+                        Calculator.CostRecord record = calculator.getCost();
+                        record.unify();
+                        costRecord = record;
+                        updateScreen();
+                    }catch (Exception e){
+                        textFieldAmount.setTextColor(16711680);
+                        TimerTask r = new TimerTask() {
+                            @Override
+                            public void run() {
+                                textFieldAmount.setTextColor(14737632);
+                            }
+                        };
+                        Timer t = new Timer();
+                        t.schedule(r, 1000);
+                    }
                 }
                 break;
             case 2:
+                Tudicraft.proxy.getPlayerHandler().syncItemCalculator(inventorySlots.getSlot(0).getStack(), textFieldAmount.getText());
                 mc.displayGuiScreen(new GuiRecipeEditor(new ContainerRecipeEditor(((ContainerCalculator)inventorySlots).getPlayer()), this));
                 break;
+            case 6:
+                switch (mode){
+                    case INPUT:
+                        mode = EnumMode.OUTPUT;
+                        break;
+                    case OUTPUT:
+                        mode = EnumMode.CATALYST;
+                        break;
+                    case CATALYST:
+                        mode = EnumMode.INPUT;
+                        break;
+                }
+                updateScreen();
         }
     }
 
@@ -120,38 +149,15 @@ public class GuiCalculator extends GuiTooltipScreen{
         }
     }
 
-    @Override
-    public void drawScreen(int mouseX, int mouseY, float f) {
-        super.drawScreen(mouseX, mouseY, f);
-        //Method
-    }
-
-    public int getActiveSlot() {
-        return activeSlot;
-    }
-
-    public void setActiveSlot(int activeSlot) {
-        this.activeSlot = activeSlot;
-    }
-
     @Override
     protected void keyTyped(char typedChar, int keyCode) throws IOException {
         if (!this.textFieldAmount.textboxKeyTyped(typedChar, keyCode)){
+
             if(keyCode == 1){
-                ItemStack itemStack = ((ContainerCalculator)inventorySlots).getPlayer().getHeldItem();
-                ItemStackWrapper.NBT.setItem(itemStack, "dest", inventorySlots.getSlot(0).inventory.getStackInSlot(inventorySlots.getSlot(0).getSlotIndex()));
-                ItemStackWrapper.NBT.setString(itemStack, "text", textFieldAmount.getText());
-                Tudicraft.networkWrapper.sendToServer(new PackageCalculatorUpdate(((ContainerCalculator)inventorySlots).getPlayer().getHeldItem()));
+                Tudicraft.proxy.getPlayerHandler().syncItemCalculator(inventorySlots.getSlot(0).getStack(), textFieldAmount.getText());
                 ((ContainerCalculator)inventorySlots).getPlayer().closeScreen();
             }
         }
-    }
-
-    public void updateScreen(){
-
-    }
-
-    public void updateSlots(){
 
     }
 
@@ -177,10 +183,69 @@ public class GuiCalculator extends GuiTooltipScreen{
                 public void renderItemOverlayIntoGUI(FontRenderer fr, ItemStack stack, int xPosition, int yPosition, String text) {
                     boolean b = fr.getUnicodeFlag();
                     fr.setUnicodeFlag(true);
-                    super.renderItemOverlayIntoGUI(fr, stack, xPosition, yPosition, "≈1.23k");
+                    super.renderItemOverlayIntoGUI(fr, stack, xPosition, yPosition, ItemStackWrapper.getDisplayAmount(stack));
                     fr.setUnicodeFlag(b);
                 }
             };
         }
     }
+
+    @Override
+    protected void handleMouseClick(Slot slotIn, int slotId, int clickedButton, int clickType) {
+        if (slotIn != null)
+        {
+            slotId = slotIn.slotNumber;
+        }
+        mc.thePlayer.openContainer.slotClick(slotId, clickedButton, clickType, mc.thePlayer);
+    }
+
+    public void updateScreen(){
+        switch (mode){
+            case OUTPUT:
+                modeButton.displayString = StatCollector.translateToLocal("gui.calculator.output");
+                break;
+            case INPUT:
+                modeButton.displayString = StatCollector.translateToLocal("gui.calculator.input");
+                break;
+            case CATALYST:
+                modeButton.displayString = StatCollector.translateToLocal("gui.calculator.catalyst");
+                break;
+        }
+        editButton.enabled = Tudicraft.proxy.getPlayerHandler().getHasRecipeOf(inventorySlots.getSlot(0).getStack());
+
+
+
+        if(costRecord != null){
+            switch (mode){
+                case OUTPUT:
+                    fillSlotsWith(costRecord.getOutputStack(), (page-1)*36);break;
+                case INPUT:
+                    fillSlotsWith(costRecord.getInputStack(), (page-1)*36);break;
+                case CATALYST:
+                    fillSlotsWith(costRecord.getCatalystStack(), (page-1)*36);break;
+            }
+        }
+    }
+
+    public int getActiveSlot() {
+        return activeSlot;
+    }
+
+    public void setActiveSlot(int activeSlot) {
+        this.activeSlot = activeSlot;
+        if(activeSlot == -1){
+            Tudicraft.proxy.getPlayerHandler().syncItemCalculator(inventorySlots.getSlot(0).getStack(), textFieldAmount.getText());
+        }
+    }
+
+    public void drawCenteredStringWithoutShadow(FontRenderer fontRendererIn, String text, int x, int y, int color) {
+        fontRendererIn.drawString(text, x - fontRendererIn.getStringWidth(text) / 2, y, color);
+    }
+
+    private void fillSlotsWith(ItemStack[] itemStacks, int start){
+        int pos = 1;
+        for(int i=start ;i<=itemStacks.length-1 && i<=start+36; i++){
+            inventorySlots.getSlot(pos++).putStack(itemStacks[i]);
+        }
+    }
 }
diff --git a/src/main/java/pers/towdium/tudicraft/network/IPlayerHandler.java b/src/main/java/pers/towdium/tudicraft/network/IPlayerHandler.java
index c1c683a..d08e1ff 100644
--- a/src/main/java/pers/towdium/tudicraft/network/IPlayerHandler.java
+++ b/src/main/java/pers/towdium/tudicraft/network/IPlayerHandler.java
@@ -29,5 +29,5 @@ public interface IPlayerHandler {
 
     Recipe getRecipe(int index);
 
-    ImmutableList<ItemStack> getCostOf(ItemStack itemStack, int amount);
+    void syncItemCalculator(ItemStack itemIn, String string);
 }
diff --git a/src/main/java/pers/towdium/tudicraft/network/PlayerHandlerClient.java b/src/main/java/pers/towdium/tudicraft/network/PlayerHandlerClient.java
index 9745144..31c5cfc 100644
--- a/src/main/java/pers/towdium/tudicraft/network/PlayerHandlerClient.java
+++ b/src/main/java/pers/towdium/tudicraft/network/PlayerHandlerClient.java
@@ -2,8 +2,13 @@ package pers.towdium.tudicraft.network;
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
+import net.minecraft.client.Minecraft;
 import net.minecraft.item.ItemStack;
+import pers.towdium.tudicraft.Tudicraft;
+import pers.towdium.tudicraft.core.ItemStackWrapper;
 import pers.towdium.tudicraft.core.Recipe;
+import pers.towdium.tudicraft.gui.calculator.ContainerCalculator;
+import pers.towdium.tudicraft.network.packages.PackageCalculatorUpdate;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -101,14 +106,12 @@ public class PlayerHandlerClient implements IPlayerHandler {
         return recipes.get(index);
     }
 
-    //TODO
     @Override
-    public ImmutableList<ItemStack> getCostOf(ItemStack itemStack, int amount) {
-        ImmutableList.Builder<ItemStack> builder = new ImmutableList.Builder<>();
-        //recipes.get(getRecipeIndexOf(itemStack))
-
-
-        return null;
+    public void syncItemCalculator(ItemStack itemIn, String string) {
+        ItemStack itemStack = Minecraft.getMinecraft().thePlayer.getHeldItem();
+        ItemStackWrapper.NBT.setItem(itemStack, "dest",itemIn );
+        ItemStackWrapper.NBT.setString(itemStack, "text", string);
+        Tudicraft.networkWrapper.sendToServer(new PackageCalculatorUpdate(itemStack));
     }
 
     ImmutableList<int[]> getAllUnsortedRecipeIndexOf(ItemStack itemStack){
diff --git a/src/main/java/pers/towdium/tudicraft/network/PlayerHandlerServer.java b/src/main/java/pers/towdium/tudicraft/network/PlayerHandlerServer.java
index aafb9f8..ee41766 100644
--- a/src/main/java/pers/towdium/tudicraft/network/PlayerHandlerServer.java
+++ b/src/main/java/pers/towdium/tudicraft/network/PlayerHandlerServer.java
@@ -54,7 +54,7 @@ public class PlayerHandlerServer implements IPlayerHandler {
     }
 
     @Override
-    public ImmutableList<ItemStack> getCostOf(ItemStack itemStack, int amount) {
-        return null;
+    public void syncItemCalculator(ItemStack itemIn, String string) {
+
     }
 }
diff --git a/src/main/resources/assets/tudicraft/lang/en_US.lang b/src/main/resources/assets/tudicraft/lang/en_US.lang
index 6413990..d766e62 100644
--- a/src/main/resources/assets/tudicraft/lang/en_US.lang
+++ b/src/main/resources/assets/tudicraft/lang/en_US.lang
@@ -1,6 +1,9 @@
 gui.calculator.calculate=Calculate!
 gui.calculator.edit=Edit
 gui.calculator.add=Add
+gui.calculator.output=Output
+gui.calculator.input=Input
+gui.calculator.catalyst=Catalyst
 gui.calculator.editTooltip=Edit records of recipes
 gui.calculator.addTooltip=Add preferred recipe
 gui.itemPicker.confirm=Confirm