001 package net.minecraft.client.gui;
002
003 import cpw.mods.fml.relauncher.Side;
004 import cpw.mods.fml.relauncher.SideOnly;
005 import java.io.ByteArrayOutputStream;
006 import java.io.DataOutputStream;
007 import net.minecraft.client.gui.inventory.GuiContainer;
008 import net.minecraft.client.renderer.RenderHelper;
009 import net.minecraft.entity.IMerchant;
010 import net.minecraft.entity.player.InventoryPlayer;
011 import net.minecraft.inventory.ContainerMerchant;
012 import net.minecraft.item.ItemStack;
013 import net.minecraft.network.packet.Packet250CustomPayload;
014 import net.minecraft.util.StatCollector;
015 import net.minecraft.village.MerchantRecipe;
016 import net.minecraft.village.MerchantRecipeList;
017 import net.minecraft.world.World;
018 import org.lwjgl.opengl.GL11;
019 import org.lwjgl.opengl.GL12;
020
021 @SideOnly(Side.CLIENT)
022 public class GuiMerchant extends GuiContainer
023 {
024 /** Instance of IMerchant interface. */
025 private IMerchant theIMerchant;
026 private GuiButtonMerchant nextRecipeButtonIndex;
027 private GuiButtonMerchant previousRecipeButtonIndex;
028 private int currentRecipeIndex = 0;
029
030 public GuiMerchant(InventoryPlayer par1InventoryPlayer, IMerchant par2IMerchant, World par3World)
031 {
032 super(new ContainerMerchant(par1InventoryPlayer, par2IMerchant, par3World));
033 this.theIMerchant = par2IMerchant;
034 }
035
036 /**
037 * Adds the buttons (and other controls) to the screen in question.
038 */
039 public void initGui()
040 {
041 super.initGui();
042 int var1 = (this.width - this.xSize) / 2;
043 int var2 = (this.height - this.ySize) / 2;
044 this.controlList.add(this.nextRecipeButtonIndex = new GuiButtonMerchant(1, var1 + 120 + 27, var2 + 24 - 1, true));
045 this.controlList.add(this.previousRecipeButtonIndex = new GuiButtonMerchant(2, var1 + 36 - 19, var2 + 24 - 1, false));
046 this.nextRecipeButtonIndex.enabled = false;
047 this.previousRecipeButtonIndex.enabled = false;
048 }
049
050 /**
051 * Draw the foreground layer for the GuiContainer (everything in front of the items)
052 */
053 protected void drawGuiContainerForegroundLayer(int par1, int par2)
054 {
055 this.fontRenderer.drawString(StatCollector.translateToLocal("entity.Villager.name"), 56, 6, 4210752);
056 this.fontRenderer.drawString(StatCollector.translateToLocal("container.inventory"), 8, this.ySize - 96 + 2, 4210752);
057 }
058
059 /**
060 * Called from the main game loop to update the screen.
061 */
062 public void updateScreen()
063 {
064 super.updateScreen();
065 MerchantRecipeList var1 = this.theIMerchant.getRecipes(this.mc.thePlayer);
066
067 if (var1 != null)
068 {
069 this.nextRecipeButtonIndex.enabled = this.currentRecipeIndex < var1.size() - 1;
070 this.previousRecipeButtonIndex.enabled = this.currentRecipeIndex > 0;
071 }
072 }
073
074 /**
075 * Fired when a control is clicked. This is the equivalent of ActionListener.actionPerformed(ActionEvent e).
076 */
077 protected void actionPerformed(GuiButton par1GuiButton)
078 {
079 boolean var2 = false;
080
081 if (par1GuiButton == this.nextRecipeButtonIndex)
082 {
083 ++this.currentRecipeIndex;
084 var2 = true;
085 }
086 else if (par1GuiButton == this.previousRecipeButtonIndex)
087 {
088 --this.currentRecipeIndex;
089 var2 = true;
090 }
091
092 if (var2)
093 {
094 ((ContainerMerchant)this.inventorySlots).setCurrentRecipeIndex(this.currentRecipeIndex);
095 ByteArrayOutputStream var3 = new ByteArrayOutputStream();
096 DataOutputStream var4 = new DataOutputStream(var3);
097
098 try
099 {
100 var4.writeInt(this.currentRecipeIndex);
101 this.mc.getSendQueue().addToSendQueue(new Packet250CustomPayload("MC|TrSel", var3.toByteArray()));
102 }
103 catch (Exception var6)
104 {
105 var6.printStackTrace();
106 }
107 }
108 }
109
110 /**
111 * Draw the background layer for the GuiContainer (everything behind the items)
112 */
113 protected void drawGuiContainerBackgroundLayer(float par1, int par2, int par3)
114 {
115 int var4 = this.mc.renderEngine.getTexture("/gui/trading.png");
116 GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
117 this.mc.renderEngine.bindTexture(var4);
118 int var5 = (this.width - this.xSize) / 2;
119 int var6 = (this.height - this.ySize) / 2;
120 this.drawTexturedModalRect(var5, var6, 0, 0, this.xSize, this.ySize);
121 MerchantRecipeList var7 = this.theIMerchant.getRecipes(this.mc.thePlayer);
122
123 if (var7 != null && !var7.isEmpty())
124 {
125 int var8 = this.currentRecipeIndex;
126 MerchantRecipe var9 = (MerchantRecipe)var7.get(var8);
127
128 if (var9.func_82784_g())
129 {
130 GL11.glBindTexture(GL11.GL_TEXTURE_2D, this.mc.renderEngine.getTexture("/gui/trading.png"));
131 GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
132 GL11.glDisable(GL11.GL_LIGHTING);
133 this.drawTexturedModalRect(this.guiLeft + 83, this.guiTop + 21, 212, 0, 28, 21);
134 this.drawTexturedModalRect(this.guiLeft + 83, this.guiTop + 51, 212, 0, 28, 21);
135 }
136 }
137 }
138
139 /**
140 * Draws the screen and all the components in it.
141 */
142 public void drawScreen(int par1, int par2, float par3)
143 {
144 super.drawScreen(par1, par2, par3);
145 MerchantRecipeList var4 = this.theIMerchant.getRecipes(this.mc.thePlayer);
146
147 if (var4 != null && !var4.isEmpty())
148 {
149 int var5 = (this.width - this.xSize) / 2;
150 int var6 = (this.height - this.ySize) / 2;
151 int var7 = this.currentRecipeIndex;
152 MerchantRecipe var8 = (MerchantRecipe)var4.get(var7);
153 GL11.glPushMatrix();
154 ItemStack var9 = var8.getItemToBuy();
155 ItemStack var10 = var8.getSecondItemToBuy();
156 ItemStack var11 = var8.getItemToSell();
157 RenderHelper.enableGUIStandardItemLighting();
158 GL11.glDisable(GL11.GL_LIGHTING);
159 GL11.glEnable(GL12.GL_RESCALE_NORMAL);
160 GL11.glEnable(GL11.GL_COLOR_MATERIAL);
161 GL11.glEnable(GL11.GL_LIGHTING);
162 itemRenderer.zLevel = 100.0F;
163 itemRenderer.renderItemAndEffectIntoGUI(this.fontRenderer, this.mc.renderEngine, var9, var5 + 36, var6 + 24);
164 itemRenderer.renderItemOverlayIntoGUI(this.fontRenderer, this.mc.renderEngine, var9, var5 + 36, var6 + 24);
165
166 if (var10 != null)
167 {
168 itemRenderer.renderItemAndEffectIntoGUI(this.fontRenderer, this.mc.renderEngine, var10, var5 + 62, var6 + 24);
169 itemRenderer.renderItemOverlayIntoGUI(this.fontRenderer, this.mc.renderEngine, var10, var5 + 62, var6 + 24);
170 }
171
172 itemRenderer.renderItemAndEffectIntoGUI(this.fontRenderer, this.mc.renderEngine, var11, var5 + 120, var6 + 24);
173 itemRenderer.renderItemOverlayIntoGUI(this.fontRenderer, this.mc.renderEngine, var11, var5 + 120, var6 + 24);
174 itemRenderer.zLevel = 0.0F;
175 GL11.glDisable(GL11.GL_LIGHTING);
176
177 if (this.isPointInRegion(36, 24, 16, 16, par1, par2))
178 {
179 this.drawItemStackTooltip(var9, par1, par2);
180 }
181 else if (var10 != null && this.isPointInRegion(62, 24, 16, 16, par1, par2))
182 {
183 this.drawItemStackTooltip(var10, par1, par2);
184 }
185 else if (this.isPointInRegion(120, 24, 16, 16, par1, par2))
186 {
187 this.drawItemStackTooltip(var11, par1, par2);
188 }
189
190 GL11.glPopMatrix();
191 GL11.glEnable(GL11.GL_LIGHTING);
192 GL11.glEnable(GL11.GL_DEPTH_TEST);
193 RenderHelper.enableStandardItemLighting();
194 }
195 }
196
197 /**
198 * Gets the Instance of IMerchant interface.
199 */
200 public IMerchant getIMerchant()
201 {
202 return this.theIMerchant;
203 }
204 }