Hello everyone,
I have a problem with 3 classes. I will put the code here so if you can help please do.


public class SlotRailsCraftingTable extends Slot
{
/** The craft matrix inventory linked to this result slot.*/
private final IInventory craftMatrix;
/** The player that is using the GUI where this slot resides.*/
private EntityPlayer thePlayer;
/*** The number of items that have been crafted so far. Gets passed to ItemStack.onCrafting before being reset.*/
private int amountCrafted;
public SlotRailsCraftingTable(EntityPlayer par1EntityPlayer, IInventory par2IInventory, IInventory par3IInventory, int par4, int par5, int par6)
{
super(par3IInventory, par4, par5, par6);
this.thePlayer = par1EntityPlayer;
this.craftMatrix = par2IInventory;
}
/*** Check if the stack is a valid item for this slot. Always true beside for the armor slots.*/
public boolean isItemValid(ItemStack par1ItemStack)
{
return true;
}
/*** Decrease the size of the stack in slot (first int arg) by the amount of the second int arg. Returns the new stack.*/
public ItemStack decrStackSize(int par1)
{
if (this.getHasStack())
{
this.amountCrafted += Math.min(par1, this.getStack().stackSize);
}
return super.decrStackSize(par1);
}
/*** the itemStack passed in is the output - ie, iron ingots, and pickaxes, not ore and wood. Typically increases an internal count then calls onCrafting(item).*/
protected void onCrafting(ItemStack par1ItemStack, int par2)
{
this.amountCrafted += par2;
this.onCrafting(par1ItemStack);
}
/*** the itemStack passed in is the output - ie, iron ingots, and pickaxes, not ore and wood.*/
protected void onCrafting(ItemStack par1ItemStack)
{
par1ItemStack.onCrafting(this.thePlayer.worldObj, this.thePlayer, this.amountCrafted);
this.amountCrafted = 0;
if (par1ItemStack == Block.workbench.blockID)
{
this.thePlayer.addStat(AchievementList.buildWorkBench, 1);
}
else if (par1ItemStack == Item.pickaxeWood.itemID)
{
this.thePlayer.addStat(AchievementList.buildPickaxe, 1);
}
else if (par1ItemStack == Block.furnaceIdle.blockID)
{
this.thePlayer.addStat(AchievementList.buildFurnace, 1);
}
else if (par1ItemStack == Item.hoeWood.itemID)
{
this.thePlayer.addStat(AchievementList.buildHoe, 1);
}
else if (par1ItemStack == Item.bread.itemID)
{
this.thePlayer.addStat(AchievementList.makeBread, 1);
}
else if (par1ItemStack == Item.cake.itemID)
{
this.thePlayer.addStat(AchievementList.bakeCake, 1);
}
else if (par1ItemStack== Item.pickaxeStone.itemID)
{
this.thePlayer.addStat(AchievementList.buildBetterPickaxe, 1);
}
else if (par1ItemStack == Item.swordWood.itemID)
{
this.thePlayer.addStat(AchievementList.buildSword, 1);
}
else if (par1ItemStack == Block.enchantmentTable.blockID)
{
this.thePlayer.addStat(AchievementList.enchantments, 1);
}
else if (par1ItemStack == Block.bookShelf.blockID)
//else if (par1ItemStack.itemID == Block.bookShelf.blockID)
{
this.thePlayer.addStat(AchievementList.bookcase, 1);
}
}
public void onPickupFromSlot(EntityPlayer par1EntityPlayer, ItemStack par2ItemStack)
{
GameRegistry.onItemCrafted(par1EntityPlayer, par2ItemStack, craftMatrix);
this.onCrafting(par2ItemStack);
for (int i = 0; i < this.craftMatrix.getSizeInventory(); ++i)
{
ItemStack itemstack1 = this.craftMatrix.getStackInSlot(i);
if (itemstack1 != null)
{
this.craftMatrix.decrStackSize(i, 1);
if (itemstack1.getItem().hasContainerItem())
{
ItemStack itemstack2 = itemstack1.getItem().getContainerItem(itemstack1);
if (itemstack2.isItemStackDamageable() && itemstack2.getItemDamage() > itemstack2.getMaxDamage())
{
MinecraftForge.EVENT_BUS.post(new PlayerDestroyItemEvent(thePlayer, itemstack2));
itemstack2 = null;
}
if (itemstack2 != null && (!itemstack1.getItem().doesContainerItemLeaveCraftingGrid(itemstack1) || !this.thePlayer.inventory.addItemStackToInventory(itemstack2)))
{
if (this.craftMatrix.getStackInSlot(i) == null)
{
this.craftMatrix.setInventorySlotContents(i, itemstack2);
}
else
{
this.thePlayer.dropOneItem(itemstack2);
}
}
}
}
}
}
}


The problem with the code here is this part :
if (par1ItemStack == Block.workbench.blockID) the error is "workbench cannot be resolved or it is not a field". The other lines like this one are with the same error.


The other problems are in these lines.

GameRegistry.onItemCrafted(par1EntityPlayer, par2ItemStack, craftMatrix);
this.thePlayer.dropOneItem(itemstack2);
-----------------------------------------------------------------------------------------------------------
public ItemStack getCraftingResult(InventoryCrafting inventorycrafting)
{
return new ItemStack(recipeOutput.stackSize, recipeOutput.stackSize, recipeOutput.getItemDamage());
}
-----------------------------------------------------------------------------------------------------------
public ItemStack findMatchingRecipe(InventoryCrafting par1InventoryCrafting, World par2World)
{
int i = 0;
ItemStack itemstack = null;
ItemStack itemstack1 = null;
int j;
for (j = 0; j < par1InventoryCrafting.getSizeInventory(); ++j)
{
ItemStack itemstack2 = par1InventoryCrafting.getStackInSlot(j);
if (itemstack2 != null)
{
if (i == 0)
{
itemstack = itemstack2;
}
if (i == 1)
{
itemstack1 = itemstack2;
}
++i;
}
}
if (i == 2 && ItemStack.itemID == itemstack1.itemID && itemstack.stackSize == 1 && itemstack1.stackSize == 1 && Item.itemsList[itemstack.itemID].isRepairable())
{
Item item = Item.itemsList[itemstack.itemID];
int k = item.getMaxDamage() - itemstack.getItemDamageForDisplay();
int l = item.getMaxDamage() - itemstack1.getItemDamageForDisplay();
int i1 = k + l + item.getMaxDamage() * 5 / 100;
int j1 = item.getMaxDamage() - i1;
if (j1 < 0)
{
j1 = 0;
}
return new ItemStack(itemstack.itemID, 1, j1);
}
else
{
for (j = 0; j < this.recipes.size(); ++j)
{
IRecipe irecipe = (IRecipe)this.recipes.get(j);
if (irecipe.matches(par1InventoryCrafting, par2World))
{
return irecipe.getCraftingResult(par1InventoryCrafting);
}
}
return null;
}
}

The Bold words are where the errors are.
If anyone needs any information please tell me. Thanks for the help in advance.