001 package net.minecraft.inventory;
002
003 import cpw.mods.fml.relauncher.Side;
004 import cpw.mods.fml.relauncher.SideOnly;
005 import net.minecraft.entity.IMerchant;
006 import net.minecraft.entity.player.EntityPlayer;
007 import net.minecraft.entity.player.InventoryPlayer;
008 import net.minecraft.item.ItemStack;
009 import net.minecraft.world.World;
010
011 public class ContainerMerchant extends Container
012 {
013 /** Instance of Merchant. */
014 private IMerchant theMerchant;
015 private InventoryMerchant merchantInventory;
016
017 /** Instance of World. */
018 private final World theWorld;
019
020 public ContainerMerchant(InventoryPlayer par1InventoryPlayer, IMerchant par2IMerchant, World par3World)
021 {
022 this.theMerchant = par2IMerchant;
023 this.theWorld = par3World;
024 this.merchantInventory = new InventoryMerchant(par1InventoryPlayer.player, par2IMerchant);
025 this.addSlotToContainer(new Slot(this.merchantInventory, 0, 36, 53));
026 this.addSlotToContainer(new Slot(this.merchantInventory, 1, 62, 53));
027 this.addSlotToContainer(new SlotMerchantResult(par1InventoryPlayer.player, par2IMerchant, this.merchantInventory, 2, 120, 53));
028 int var4;
029
030 for (var4 = 0; var4 < 3; ++var4)
031 {
032 for (int var5 = 0; var5 < 9; ++var5)
033 {
034 this.addSlotToContainer(new Slot(par1InventoryPlayer, var5 + var4 * 9 + 9, 8 + var5 * 18, 84 + var4 * 18));
035 }
036 }
037
038 for (var4 = 0; var4 < 9; ++var4)
039 {
040 this.addSlotToContainer(new Slot(par1InventoryPlayer, var4, 8 + var4 * 18, 142));
041 }
042 }
043
044 public InventoryMerchant getMerchantInventory()
045 {
046 return this.merchantInventory;
047 }
048
049 public void addCraftingToCrafters(ICrafting par1ICrafting)
050 {
051 super.addCraftingToCrafters(par1ICrafting);
052 }
053
054 /**
055 * Looks for changes made in the container, sends them to every listener.
056 */
057 public void detectAndSendChanges()
058 {
059 super.detectAndSendChanges();
060 }
061
062 /**
063 * Callback for when the crafting matrix is changed.
064 */
065 public void onCraftMatrixChanged(IInventory par1IInventory)
066 {
067 this.merchantInventory.resetRecipeAndSlots();
068 super.onCraftMatrixChanged(par1IInventory);
069 }
070
071 public void setCurrentRecipeIndex(int par1)
072 {
073 this.merchantInventory.setCurrentRecipeIndex(par1);
074 }
075
076 @SideOnly(Side.CLIENT)
077 public void updateProgressBar(int par1, int par2) {}
078
079 public boolean canInteractWith(EntityPlayer par1EntityPlayer)
080 {
081 return this.theMerchant.getCustomer() == par1EntityPlayer;
082 }
083
084 /**
085 * Called when a player shift-clicks on a slot. You must override this or you will crash when someone does that.
086 */
087 public ItemStack transferStackInSlot(EntityPlayer par1EntityPlayer, int par2)
088 {
089 ItemStack var3 = null;
090 Slot var4 = (Slot)this.inventorySlots.get(par2);
091
092 if (var4 != null && var4.getHasStack())
093 {
094 ItemStack var5 = var4.getStack();
095 var3 = var5.copy();
096
097 if (par2 == 2)
098 {
099 if (!this.mergeItemStack(var5, 3, 39, true))
100 {
101 return null;
102 }
103
104 var4.onSlotChange(var5, var3);
105 }
106 else if (par2 != 0 && par2 != 1)
107 {
108 if (par2 >= 3 && par2 < 30)
109 {
110 if (!this.mergeItemStack(var5, 30, 39, false))
111 {
112 return null;
113 }
114 }
115 else if (par2 >= 30 && par2 < 39 && !this.mergeItemStack(var5, 3, 30, false))
116 {
117 return null;
118 }
119 }
120 else if (!this.mergeItemStack(var5, 3, 39, false))
121 {
122 return null;
123 }
124
125 if (var5.stackSize == 0)
126 {
127 var4.putStack((ItemStack)null);
128 }
129 else
130 {
131 var4.onSlotChanged();
132 }
133
134 if (var5.stackSize == var3.stackSize)
135 {
136 return null;
137 }
138
139 var4.onPickupFromSlot(par1EntityPlayer, var5);
140 }
141
142 return var3;
143 }
144
145 /**
146 * Callback for when the crafting gui is closed.
147 */
148 public void onCraftGuiClosed(EntityPlayer par1EntityPlayer)
149 {
150 super.onCraftGuiClosed(par1EntityPlayer);
151 this.theMerchant.setCustomer((EntityPlayer)null);
152 super.onCraftGuiClosed(par1EntityPlayer);
153
154 if (!this.theWorld.isRemote)
155 {
156 ItemStack var2 = this.merchantInventory.getStackInSlotOnClosing(0);
157
158 if (var2 != null)
159 {
160 par1EntityPlayer.dropPlayerItem(var2);
161 }
162
163 var2 = this.merchantInventory.getStackInSlotOnClosing(1);
164
165 if (var2 != null)
166 {
167 par1EntityPlayer.dropPlayerItem(var2);
168 }
169 }
170 }
171 }