First steps for armor sets.

src/main/java/vazkii/botania/common/item/equipment/armor/manasteel/ItemManasteelArmor.java

@@ -10,6 +10,9 @@
  */
 package vazkii.botania.common.item.equipment.armor.manasteel;
 
+import java.util.List;
+
+import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.client.renderer.texture.IIconRegister;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityLivingBase;
@@ -18,6 +21,8 @@ import net.minecraft.item.Item;
 import net.minecraft.item.ItemArmor;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.DamageSource;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraft.util.StatCollector;
 import net.minecraft.world.World;
 import net.minecraftforge.common.ISpecialArmor;
 import vazkii.botania.api.BotaniaAPI;
@@ -104,5 +109,74 @@ public class ItemManasteelArmor extends ItemArmor implements ISpecialArmor, IMan
 	public boolean usesMana(ItemStack stack) {
 		return true;
 	}
+	
+	@Override
+	public void addInformation(ItemStack stack, EntityPlayer player, List list, boolean adv) {
+		if(GuiScreen.isShiftKeyDown()) {
+			addStringToTooltip(getArmorSetTitle(player), list);
+			addArmorSetDescription(list);
+			ItemStack[] stacks = getArmorSetStacks();
+			for(int i = 0; i < stacks.length; i++)
+				addStringToTooltip((hasArmorSetItem(player, i) ? EnumChatFormatting.GREEN : "") + " - " + stacks[i].getDisplayName(), list);
+		} else addStringToTooltip(StatCollector.translateToLocal("botaniamisc.shiftinfo"), list);
+	}
+	
+	public void addStringToTooltip(String s, List<String> tooltip) {
+		tooltip.add(s.replaceAll("&", "\u00a7"));
+	}
+
+	static ItemStack[] armorset;
+
+	public ItemStack[] getArmorSetStacks() {
+		if(armorset == null)
+			armorset = new ItemStack[] {
+				new ItemStack(ModItems.manasteelHelm),
+				new ItemStack(ModItems.manasteelChest),
+				new ItemStack(ModItems.manasteelLegs),
+				new ItemStack(ModItems.manasteelBoots)
+			};
+		
+		return armorset;
+	}
+
+	public boolean hasArmorSet(EntityPlayer player) {
+		return hasArmorSetItem(player, 0) && hasArmorSetItem(player, 1) && hasArmorSetItem(player, 2) && hasArmorSetItem(player, 3);
+	}
+	
+	public boolean hasArmorSetItem(EntityPlayer player, int i) {
+		ItemStack stack = player.inventory.armorInventory[3 - i];
+		if(stack == null)
+			return false;
+		
+		switch(i) {
+		case 0: return stack.getItem() == ModItems.manasteelHelm || stack.getItem() == ModItems.manasteelHelmRevealing;
+		case 1: return stack.getItem() == ModItems.manasteelChest;
+		case 2: return stack.getItem() == ModItems.manasteelLegs;
+		case 3: return stack.getItem() == ModItems.manasteelBoots;
+		}
+		
+		return false;
+	}
+	
+	public int getSetPiecesEquipped(EntityPlayer player) {
+		int pieces = 0;
+		for(int i = 0; i < 4; i++)
+			if(hasArmorSetItem(player, i))
+				pieces++;
+		
+		return pieces;
+	}
+	
+	public String getArmorSetName() {
+		return StatCollector.translateToLocal("botania.armorset.manasteel.name");
+	}
+	
+	public String getArmorSetTitle(EntityPlayer player) {
+		return StatCollector.translateToLocal("botaniamisc.armorset") + " " + getArmorSetName() + " (" + getSetPiecesEquipped(player) + "/" + getArmorSetStacks().length + ")";
+	}
+	
+	public void addArmorSetDescription(List<String> list) {
+		addStringToTooltip(StatCollector.translateToLocal("botania.armorset.manasteel.desc"), list);
+	}
 
 }