001 package net.minecraft.src;
002
003 import cpw.mods.fml.common.Side;
004 import cpw.mods.fml.common.asm.SideOnly;
005 import java.io.ByteArrayOutputStream;
006 import java.io.DataOutputStream;
007 import org.lwjgl.opengl.GL11;
008 import org.lwjgl.opengl.GL12;
009
010 @SideOnly(Side.CLIENT)
011 public class GuiMerchant extends GuiContainer
012 {
013 /** Instance of IMerchant interface. */
014 private IMerchant theIMerchant;
015 private GuiButtonMerchant nextRecipeButtonIndex;
016 private GuiButtonMerchant previousRecipeButtonIndex;
017 private int currentRecipeIndex = 0;
018
019 public GuiMerchant(InventoryPlayer par1InventoryPlayer, IMerchant par2IMerchant, World par3World)
020 {
021 super(new ContainerMerchant(par1InventoryPlayer, par2IMerchant, par3World));
022 this.theIMerchant = par2IMerchant;
023 }
024
025 /**
026 * Adds the buttons (and other controls) to the screen in question.
027 */
028 public void initGui()
029 {
030 super.initGui();
031 int var1 = (this.width - this.xSize) / 2;
032 int var2 = (this.height - this.ySize) / 2;
033 this.controlList.add(this.nextRecipeButtonIndex = new GuiButtonMerchant(1, var1 + 120 + 27, var2 + 24 - 1, true));
034 this.controlList.add(this.previousRecipeButtonIndex = new GuiButtonMerchant(2, var1 + 36 - 19, var2 + 24 - 1, false));
035 this.nextRecipeButtonIndex.enabled = false;
036 this.previousRecipeButtonIndex.enabled = false;
037 }
038
039 /**
040 * Draw the foreground layer for the GuiContainer (everything in front of the items)
041 */
042 protected void drawGuiContainerForegroundLayer(int par1, int par2)
043 {
044 this.fontRenderer.drawString(StatCollector.translateToLocal("entity.Villager.name"), 56, 6, 4210752);
045 this.fontRenderer.drawString(StatCollector.translateToLocal("container.inventory"), 8, this.ySize - 96 + 2, 4210752);
046 }
047
048 /**
049 * Called from the main game loop to update the screen.
050 */
051 public void updateScreen()
052 {
053 super.updateScreen();
054 MerchantRecipeList var1 = this.theIMerchant.getRecipes(this.mc.thePlayer);
055
056 if (var1 != null)
057 {
058 this.nextRecipeButtonIndex.enabled = this.currentRecipeIndex < var1.size() - 1;
059 this.previousRecipeButtonIndex.enabled = this.currentRecipeIndex > 0;
060 }
061 }
062
063 /**
064 * Fired when a control is clicked. This is the equivalent of ActionListener.actionPerformed(ActionEvent e).
065 */
066 protected void actionPerformed(GuiButton par1GuiButton)
067 {
068 boolean var2 = false;
069
070 if (par1GuiButton == this.nextRecipeButtonIndex)
071 {
072 ++this.currentRecipeIndex;
073 var2 = true;
074 }
075 else if (par1GuiButton == this.previousRecipeButtonIndex)
076 {
077 --this.currentRecipeIndex;
078 var2 = true;
079 }
080
081 if (var2)
082 {
083 ((ContainerMerchant)this.inventorySlots).setCurrentRecipeIndex(this.currentRecipeIndex);
084 ByteArrayOutputStream var3 = new ByteArrayOutputStream();
085 DataOutputStream var4 = new DataOutputStream(var3);
086
087 try
088 {
089 var4.writeInt(this.currentRecipeIndex);
090 this.mc.getSendQueue().addToSendQueue(new Packet250CustomPayload("MC|TrSel", var3.toByteArray()));
091 }
092 catch (Exception var6)
093 {
094 var6.printStackTrace();
095 }
096 }
097 }
098
099 /**
100 * Draw the background layer for the GuiContainer (everything behind the items)
101 */
102 protected void drawGuiContainerBackgroundLayer(float par1, int par2, int par3)
103 {
104 int var4 = this.mc.renderEngine.getTexture("/gui/trading.png");
105 GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
106 this.mc.renderEngine.bindTexture(var4);
107 int var5 = (this.width - this.xSize) / 2;
108 int var6 = (this.height - this.ySize) / 2;
109 this.drawTexturedModalRect(var5, var6, 0, 0, this.xSize, this.ySize);
110 }
111
112 /**
113 * Draws the screen and all the components in it.
114 */
115 public void drawScreen(int par1, int par2, float par3)
116 {
117 super.drawScreen(par1, par2, par3);
118 MerchantRecipeList var4 = this.theIMerchant.getRecipes(this.mc.thePlayer);
119
120 if (var4 != null && !var4.isEmpty())
121 {
122 int var5 = (this.width - this.xSize) / 2;
123 int var6 = (this.height - this.ySize) / 2;
124 int var7 = this.currentRecipeIndex;
125 MerchantRecipe var8 = (MerchantRecipe)var4.get(var7);
126
127 if (var8.func_82784_g())
128 {
129 GL11.glBindTexture(GL11.GL_TEXTURE_2D, this.mc.renderEngine.getTexture("/gui/trading.png"));
130 GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
131 GL11.glDisable(GL11.GL_LIGHTING);
132 this.drawTexturedModalRect(this.guiLeft + 83, this.guiTop + 21, 212, 0, 28, 21);
133 this.drawTexturedModalRect(this.guiLeft + 83, this.guiTop + 51, 212, 0, 28, 21);
134 }
135
136 GL11.glPushMatrix();
137 ItemStack var9 = var8.getItemToBuy();
138 ItemStack var10 = var8.getSecondItemToBuy();
139 ItemStack var11 = var8.getItemToSell();
140 RenderHelper.enableGUIStandardItemLighting();
141 GL11.glDisable(GL11.GL_LIGHTING);
142 GL11.glEnable(GL12.GL_RESCALE_NORMAL);
143 GL11.glEnable(GL11.GL_COLOR_MATERIAL);
144 GL11.glEnable(GL11.GL_LIGHTING);
145 itemRenderer.zLevel = 100.0F;
146 itemRenderer.renderItemAndEffectIntoGUI(this.fontRenderer, this.mc.renderEngine, var9, var5 + 36, var6 + 24);
147 itemRenderer.renderItemOverlayIntoGUI(this.fontRenderer, this.mc.renderEngine, var9, var5 + 36, var6 + 24);
148
149 if (var10 != null)
150 {
151 itemRenderer.renderItemAndEffectIntoGUI(this.fontRenderer, this.mc.renderEngine, var10, var5 + 62, var6 + 24);
152 itemRenderer.renderItemOverlayIntoGUI(this.fontRenderer, this.mc.renderEngine, var10, var5 + 62, var6 + 24);
153 }
154
155 itemRenderer.renderItemAndEffectIntoGUI(this.fontRenderer, this.mc.renderEngine, var11, var5 + 120, var6 + 24);
156 itemRenderer.renderItemOverlayIntoGUI(this.fontRenderer, this.mc.renderEngine, var11, var5 + 120, var6 + 24);
157 itemRenderer.zLevel = 0.0F;
158 GL11.glDisable(GL11.GL_LIGHTING);
159
160 if (this.func_74188_c(36, 24, 16, 16, par1, par2))
161 {
162 this.func_74184_a(var9, par1, par2);
163 }
164 else if (var10 != null && this.func_74188_c(62, 24, 16, 16, par1, par2))
165 {
166 this.func_74184_a(var10, par1, par2);
167 }
168 else if (this.func_74188_c(120, 24, 16, 16, par1, par2))
169 {
170 this.func_74184_a(var11, par1, par2);
171 }
172
173 GL11.glPopMatrix();
174 GL11.glEnable(GL11.GL_LIGHTING);
175 GL11.glEnable(GL11.GL_DEPTH_TEST);
176 RenderHelper.enableStandardItemLighting();
177 }
178 }
179
180 /**
181 * Gets the Instance of IMerchant interface.
182 */
183 public IMerchant getIMerchant()
184 {
185 return this.theIMerchant;
186 }
187 }