GuiDossierScreen.java

package com.arkcraft.module.core.client.gui;

import com.arkcraft.lib.LogHelper;
import com.arkcraft.module.core.client.gui.book.button.PageButton;
import com.arkcraft.module.core.ARKCraft;
import com.arkcraft.module.core.common.handlers.BookDrawHandler;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.GuiScreen;
import net.minecraft.util.ResourceLocation;
import org.lwjgl.opengl.GL11;

/**
 * @author BubbleTrouble / Vastatio (Page Content)
 */

@SuppressWarnings({ "unchecked", "unused" })
public class GuiDossierScreen extends GuiScreen
{

    private static final ResourceLocation texture = new ResourceLocation(ARKCraft.MODID, "textures/gui/dino_book_gui.png");

    private int guiWidth = 256;
    private int guiHeight = 180;
    private int x;
    private int y;
    private int currentPage;
    private int oldPage;
    private int maxPages;
    public PageButton bButton;
    public PageButton nButton;
    public PageButton cat_bButton;
    private GuiButton dinos, reptiles, mammals, other;

    public enum CATEGORY
    {
        DINOS(0),
        REPTILES(1),
        MAMMALS(2),
        OTHER(3);

        int id;

        CATEGORY(int id)
        {
            this.id = id;
        }

        public int getID() { return id; }
    }

    private CATEGORY currentCategory;

    @Override
    public void initGui()
    {
        currentPage = 0;
        oldPage = 0;
        maxPages = 10;
        x = (width - guiWidth) / 2;
        y = (height - guiHeight) / 2;

        bButton = new PageButton(1, x + 20, y + guiHeight - 20, false);
        nButton = new PageButton(2, x + guiWidth - 36, y + guiHeight - 20, true);
        dinos = new GuiButton(3, x + 15, (y + (guiHeight / 2)) - 20, 100, 20, "Dinos");
        cat_bButton = new PageButton(4, x + 15, y + 15, false);
        reptiles = new GuiButton(5, x + 15, y + guiHeight - 40, 100, 20, "Reptiles");
        mammals = new GuiButton(6, (x + (guiWidth / 2)) + 15, (y + (guiHeight / 2)) - 20, 100, 20, "Mammals");
        other = new GuiButton(7, (x + (guiWidth / 2)) + 15, y + guiHeight - 40, 100, 20, "Other");
        this.buttonList.add(bButton);
        this.buttonList.add(nButton);
        this.buttonList.add(dinos);
        this.buttonList.add(cat_bButton);
        this.buttonList.add(reptiles);
        this.buttonList.add(mammals);
        this.buttonList.add(other);
    }

    @Override
    public void drawScreen(int mouseX, int mouseY, float partialTicks)
    {
        this.mc.getTextureManager().bindTexture(texture);
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        LogHelper.info("CurrentPage: " + currentPage);
        this.drawTexturedModalRect(x, y, 0, 0, guiWidth, guiHeight);
        BookDrawHandler.drawPages(this.fontRendererObj, mouseX, mouseY, currentPage, currentCategory, this);
        if (currentCategory != null)
        {
            bButton.drawButton(Minecraft.getMinecraft(), mouseX, mouseY);
            nButton.drawButton(Minecraft.getMinecraft(), mouseX, mouseY);
            if (currentPage == 0)
            {
                cat_bButton.drawButton(Minecraft.getMinecraft(), mouseX, mouseY);
            }
        }
        if (currentCategory == null)
        {
            dinos.drawButton(Minecraft.getMinecraft(), mouseX, mouseY);
            reptiles.drawButton(Minecraft.getMinecraft(), mouseX, mouseY);
            mammals.drawButton(Minecraft.getMinecraft(), mouseX, mouseY);
            other.drawButton(Minecraft.getMinecraft(), mouseX, mouseY);
        }
    }

    @Override
    protected void actionPerformed(GuiButton button)
    {
        if (button.enabled)
        {

            if (button.id == 1 && currentPage != 0 && currentCategory != null)
            {
                currentPage -= 2;
            }
            if (button.id == 2 && currentPage != maxPages && currentCategory != null)
            {
                currentPage += 2;
            }
            if (button.id == 3 && currentCategory == null)
            {
                currentCategory = CATEGORY.DINOS;
            }
            if (button.id == 4 && currentCategory != null)
            {
                currentCategory = null;
            }
            updateContent(button);
        }
    }

    void updateContent(GuiButton button)
    {
        if (maxPages % 2 == 1)
        {
            if (currentPage > maxPages)
            {
                currentPage = maxPages;
            }
        }
        else
        {
            if (currentPage > maxPages)
            {
                currentPage = maxPages;
            }
        }
        if (currentPage % 2 == 1)
        {
            currentPage--;
        }
        if (currentPage < 0)
        {
            currentPage = 0;
        }

        oldPage = currentPage;
    }
}