GuiMarket.java

package com.pam.harvestcraft.gui;

import com.pam.harvestcraft.proxy.PacketHandler;
import com.pam.harvestcraft.tileentities.*;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.renderer.RenderHelper;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ResourceLocation;
import org.lwjgl.input.Keyboard;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL12;

public class GuiMarket extends GuiContainer {
    private static final ResourceLocation gui = new ResourceLocation("harvestcraft:textures/gui/market.png");

    private int itemNum;

    private final TileEntityMarket tileEntityMarket;

    public GuiMarket(InventoryPlayer inventoryplayer, TileEntityMarket tileEntityMarket) {
        super(new ContainerMarket(inventoryplayer, tileEntityMarket));
        this.tileEntityMarket = tileEntityMarket;
    }

    @Override
    public void initGui() {
        super.initGui();
        Keyboard.enableRepeatEvents(false);

        buttonList.clear();

        final int posX = width / 2 - 48;
        final int posY = height / 2 - 48;

        final GuiButton left = new GuiButton(0, posX, posY - 21, 15, 20, "<");
        final GuiButton right = new GuiButton(1, posX + 16, posY - 21, 15, 20, ">");
        final GuiButton button_buy = new GuiButton(2, posX, posY + 1, 55, 20, "Buy");

        buttonList.add(left);
        buttonList.add(right);
        buttonList.add(button_buy);

        this.itemNum = tileEntityMarket.getBrowsingInfo();
    }

    @Override
    protected void actionPerformed(GuiButton guibutton) {
        if (!guibutton.enabled) {
            return;
        }
        if (guibutton.id == 0) {
            itemNum--;
            if (itemNum < 0) {
                itemNum = MarketItems.getSize() - 1;
            }
            this.tileEntityMarket.setBrowsingInfo(itemNum);
        }
        if (guibutton.id == 1) {
            itemNum++;
            if (itemNum > MarketItems.getSize() - 1) {
                itemNum = 0;
            }
            this.tileEntityMarket.setBrowsingInfo(itemNum);
        }
        if (guibutton.id == 2) {
            ItemStack buySlot = this.tileEntityMarket.getStackInSlot(0);
            if (buySlot != null) {
                final MarketData data = MarketItems.getData(itemNum);
                if (buySlot.getItem() == data.getCurrency().getItem()) {
                    if (buySlot.getItemDamage() == data.getCurrency().getItemDamage()) {
                        int price = data.getPrice();
                        if (buySlot.getCount() == price) {

                            PacketHandler.network.sendToServer(new MessageMarketBuy(this.itemNum, this.tileEntityMarket.getPos().getX(), this.tileEntityMarket.getPos().getY(), this.tileEntityMarket.getPos().getZ(), true));
                        } else if (buySlot.getCount() > price && buySlot.getCount() > 1) {
                            PacketHandler.network.sendToServer(new MessageMarketBuy(this.itemNum, this.tileEntityMarket.getPos().getX(), this.tileEntityMarket.getPos().getY(), this.tileEntityMarket.getPos().getZ(), false));
                        }
                        if (buySlot.getCount() == 0 && price == 1) {
                            PacketHandler.network.sendToServer(new MessageMarketBuy(this.itemNum, this.tileEntityMarket.getPos().getX(), this.tileEntityMarket.getPos().getY(), this.tileEntityMarket.getPos().getZ(), true));
                        }
                    }
                }
            }
        }
    }

    @Override
    public void onGuiClosed() {
        PacketHandler.network.sendToServer(new MessageMarketClosed(this.tileEntityMarket.getPos().getX(), this.tileEntityMarket.getPos().getY(), this.tileEntityMarket.getPos().getZ()));
        super.onGuiClosed();
    }

    protected void drawGuiContainerForegroundLayer(int par1, int par2) {
        this.fontRendererObj.drawString("Inventory", 8, (ySize - 96) + 13, 4210752);

        GL11.glPushMatrix();
        RenderHelper.enableGUIStandardItemLighting();
        GL11.glDisable(GL11.GL_LIGHTING);
        GL11.glEnable(GL12.GL_RESCALE_NORMAL);
        GL11.glEnable(GL11.GL_COLOR_MATERIAL);
        GL11.glEnable(GL11.GL_LIGHTING);
        itemRender.zLevel = 100.0F;

        MarketData data = MarketItems.getData(itemNum);

        ItemStack item = data.getItem();
        itemRender.renderItemAndEffectIntoGUI(item, 73, 16);
        itemRender.renderItemOverlayIntoGUI(fontRendererObj, item, 73, 16, "");

        ItemStack currency = data.getCurrency();
        itemRender.renderItemAndEffectIntoGUI(currency, 100, 16);
        itemRender.renderItemOverlayIntoGUI(fontRendererObj, currency, 100, 16, "");
        itemRender.zLevel = 0.0F;
        GL11.glDisable(GL11.GL_LIGHTING);

        int price = data.getPrice();
        this.fontRendererObj.drawString("x" + Integer.toString(price), 116, 20, 0);

        GL11.glPopMatrix();
        GL11.glEnable(GL11.GL_LIGHTING);
        GL11.glEnable(GL11.GL_DEPTH_TEST);
        RenderHelper.enableStandardItemLighting();
    }

    public void drawScreen(int par1, int par2, float par3) {
        super.drawScreen(par1, par2, par3);
        ItemStack item = MarketItems.getData(itemNum).getItem();

        if (this.isPointInRegion(73, 16, 16, 16, par1, par2)) {
            this.renderToolTip(item, par1, par2);
        }
    }

    protected void drawGuiContainerBackgroundLayer(float f, int i, int j) {
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        this.mc.getTextureManager().bindTexture(gui);
        int l = (width - xSize) / 2;
        int i1 = (height - ySize) / 2;
        this.drawTexturedModalRect(l, i1 - 10, 0, 0, xSize, ySize + 21);
    }
}