It's never too late to fix old code boys! (#268)

* It's never too late to fix old code boys!

Cache items so the array isn't returned multiple times and cache Gachapon.values() for maximum performance and stability

* Java 7 memes

src/server/gachapon/GachaponItems.java

@@ -33,13 +33,23 @@ public abstract class GachaponItems {
 	public abstract int [] getUncommonItems();
 	public abstract int [] getRareItems();
 	
-	public int[] getItems(int tier) {
-		if (tier == 0){
-			return getCommonItems();
-		} else if (tier == 1){
-			return getUncommonItems();
-		} else if (tier == 2){
-			return getRareItems();
+	private final int [] commonItems;
+	private final int [] uncommonItems;
+	private final int [] rareItems;
+	
+	public GachaponItems() {
+		this.commonItems = getCommonItems();
+		this.uncommonItems = getUncommonItems();
+		this.rareItems = getRareItems();
+	}
+
+	public final int[] getItems(int tier) {
+		if (tier == 0) {
+			return commonItems;
+		} else if (tier == 1) {
+			return uncommonItems;
+		} else if (tier == 2) {
+			return rareItems;
 		}
 		return null;
 	}

src/server/gachapon/MapleGachapon.java

@@ -49,6 +49,8 @@ public class MapleGachapon {
 		NEW_LEAF_CITY(9100109, 90, 8, 2, new NewLeafCity()),
 		NAUTILUS_HARBOR(9100117, 90, 8, 2, new NautilusHarbor());
 
+		private static final Gachapon[] values = Gachapon.values();
+
 		private GachaponItems gachapon;
 		private int npcId;
 		private int common;
@@ -56,11 +58,11 @@ public class MapleGachapon {
 		private int rare;
 
 		private Gachapon(int npcid, int c, int u, int r, GachaponItems g) {
-			npcId = npcid;
-			gachapon = g;
-			common = c;
-			uncommon = u;
-			rare = r;
+			this.npcId = npcid;
+			this.gachapon = g;
+			this.common = c;
+			this.uncommon = u;
+			this.rare = r;
 		}
 
 		private int getTier() {
@@ -85,7 +87,7 @@ public class MapleGachapon {
 		}
 
 		public static Gachapon getByNpcId(int npcId) {
-			for (Gachapon gacha : Gachapon.values()) {
+			for (Gachapon gacha : values) {
 				if (npcId == gacha.npcId) {
 					return gacha;
 				}