Mod2ClientEventHandler.java

package com.arkcraft.module.items.client.event;

import net.minecraft.item.Item;
import net.minecraft.util.EnumChatFormatting;
import net.minecraft.util.StatCollector;
import net.minecraftforge.event.entity.player.ItemTooltipEvent;
import net.minecraftforge.fml.common.eventhandler.EventPriority;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import org.lwjgl.input.Keyboard;

import com.arkcraft.module.items.ARKCraftItems;

@SideOnly(Side.CLIENT)
public class Mod2ClientEventHandler
{
//	private Minecraft mc = Minecraft.getMinecraft();

    @SubscribeEvent(priority = EventPriority.HIGHEST)
    public void addTooltip(ItemTooltipEvent event)
    {
        Item item = event.itemStack.getItem();
        String tooltipLang = item.getUnlocalizedName() + ".tooltip";
        String translated = StatCollector.translateToLocal(tooltipLang);

        if (Keyboard.isKeyDown(Keyboard.KEY_LSHIFT) && ARKCraftItems.allItems.containsValue(item) && tooltipLang != translated)
        {
            String[] lines = translated.split("NEXT");

            for (String line : lines)
            {
                for (EnumChatFormatting format : EnumChatFormatting.values())
                {
                    if (!format.isFancyStyling())
                    {
                        line = handleColourFormat(line, format, format.getColorIndex() + "");
                    }
                }

                line = handleColourFormat(line, EnumChatFormatting.ITALIC, "o");
                line = handleColourFormat(line, EnumChatFormatting.OBFUSCATED, "k");
                line = handleColourFormat(line, EnumChatFormatting.BOLD, "l");
                line = handleColourFormat(line, EnumChatFormatting.STRIKETHROUGH, "m");
                line = handleColourFormat(line, EnumChatFormatting.UNDERLINE, "n");
                line = handleColourFormat(line, EnumChatFormatting.RESET, "r");

                event.toolTip.add(1, line);
            }
        }
    }

    private String handleColourFormat(String line, EnumChatFormatting format, String colourIndex)
    {
        String value = "%" + colourIndex;

        if (line.contains(value))
        {
            line = line.replaceAll(value, "");
            line = format + line;
        }

        return line;
    }
}