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Initial commit
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Melledy
287
src/main/java/emu/grasscutter/game/gacha/GachaManager.java
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287
src/main/java/emu/grasscutter/game/gacha/GachaManager.java
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package emu.grasscutter.game.gacha;
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import java.io.FileReader;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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import java.util.concurrent.ThreadLocalRandom;
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import com.google.gson.reflect.TypeToken;
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import emu.grasscutter.Grasscutter;
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import emu.grasscutter.data.GenshinData;
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import emu.grasscutter.data.def.ItemData;
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import emu.grasscutter.game.GenshinPlayer;
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import emu.grasscutter.game.avatar.GenshinAvatar;
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import emu.grasscutter.game.inventory.GenshinItem;
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import emu.grasscutter.game.inventory.ItemType;
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import emu.grasscutter.game.inventory.MaterialType;
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import emu.grasscutter.net.proto.GachaItemOuterClass.GachaItem;
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import emu.grasscutter.net.proto.GachaTransferItemOuterClass.GachaTransferItem;
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import emu.grasscutter.net.proto.GetGachaInfoRspOuterClass.GetGachaInfoRsp;
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import emu.grasscutter.net.proto.ItemParamOuterClass.ItemParam;
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import emu.grasscutter.server.game.GameServer;
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import emu.grasscutter.server.packet.send.PacketDoGachaRsp;
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import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
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import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
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import it.unimi.dsi.fastutil.ints.IntArrayList;
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import it.unimi.dsi.fastutil.ints.IntList;
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public class GachaManager {
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private final GameServer server;
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private final Int2ObjectMap<GachaBanner> gachaBanners;
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private GetGachaInfoRsp cachedProto;
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private int[] yellowAvatars = new int[] {1003, 1016, 1042, 1035, 1041};
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private int[] yellowWeapons = new int[] {11501, 11502, 12501, 12502, 13502, 13505, 14501, 14502, 15501, 15502};
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private int[] purpleAvatars = new int[] {1006, 1014, 1015, 1020, 1021, 1023, 1024, 1025, 1027, 1031, 1032, 1034, 1036, 1039, 1043, 1044, 1045, 1048, 1053, 1055, 1056, 1064};
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private int[] purpleWeapons = new int[] {11401, 11402, 11403, 11405, 12401, 12402, 12403, 12405, 13401, 13407, 14401, 14402, 14403, 14409, 15401, 15402, 15403, 15405};
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private int[] blueWeapons = new int[] {11301, 11302, 11306, 12301, 12302, 12305, 13303, 14301, 14302, 14304, 15301, 15302, 15304};
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private static int starglitterId = 221;
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private static int stardustId = 222;
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public GachaManager(GameServer server) {
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this.server = server;
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this.gachaBanners = new Int2ObjectOpenHashMap<>();
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this.load();
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}
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public GameServer getServer() {
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return server;
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}
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public Int2ObjectMap<GachaBanner> getGachaBanners() {
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return gachaBanners;
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}
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public int randomRange(int min, int max) {
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return ThreadLocalRandom.current().nextInt(max - min + 1) + min;
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}
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public int getRandom(int[] array) {
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return array[randomRange(0, array.length - 1)];
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}
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public synchronized void load() {
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try (FileReader fileReader = new FileReader(Grasscutter.getConfig().DATA_FOLDER + "Banners.json")) {
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List<GachaBanner> banners = Grasscutter.getGsonFactory().fromJson(fileReader, TypeToken.getParameterized(Collection.class, GachaBanner.class).getType());
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for (GachaBanner banner : banners) {
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getGachaBanners().put(banner.getGachaType(), banner);
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}
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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public synchronized void doPulls(GenshinPlayer player, int gachaType, int times) {
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// Sanity check
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if (times != 10 && times != 1) {
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return;
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}
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if (player.getInventory().getInventoryTab(ItemType.ITEM_WEAPON).getSize() + times > player.getInventory().getInventoryTab(ItemType.ITEM_WEAPON).getMaxCapacity()) {
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player.sendPacket(new PacketDoGachaRsp());
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return;
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}
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// Get banner
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GachaBanner banner = this.getGachaBanners().get(gachaType);
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if (banner == null) {
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player.sendPacket(new PacketDoGachaRsp());
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return;
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}
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// Spend currency
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if (banner.getCostItem() > 0) {
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GenshinItem costItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(banner.getCostItem());
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if (costItem == null || costItem.getCount() < times) {
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return;
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}
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player.getInventory().removeItem(costItem, times);
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}
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// Roll
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PlayerGachaBannerInfo gachaInfo = player.getGachaInfo().getBannerInfo(banner);
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IntList wonItems = new IntArrayList(times);
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for (int i = 0; i < times; i++) {
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int random = this.randomRange(1, 10000);
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int itemId = 0;
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int bonusYellowChance = gachaInfo.getPity5() >= banner.getSoftPity() ? 100 * (gachaInfo.getPity5() - banner.getSoftPity() - 1): 0;
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int yellowChance = 60 + (int) Math.floor(100f * (gachaInfo.getPity5() / (banner.getSoftPity() - 1D))) + bonusYellowChance;
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int purpleChance = 10000 - (510 + (int) Math.floor(790f * (gachaInfo.getPity4() / 8f)));
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if (random <= yellowChance || gachaInfo.getPity5() >= banner.getHardPity()) {
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if (banner.getRateUpItems1().length > 0) {
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int eventChance = this.randomRange(1, 100);
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if (eventChance >= banner.getEventChance() || gachaInfo.getFailedFeaturedItemPulls() >= 1) {
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itemId = getRandom(banner.getRateUpItems1());
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gachaInfo.setFailedFeaturedItemPulls(0);
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} else {
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// Lost the 50/50... rip
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gachaInfo.addFailedFeaturedItemPulls(1);
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}
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}
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if (itemId == 0) {
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int typeChance = this.randomRange(banner.getMinItemType(), banner.getMaxItemType());
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if (typeChance == 1) {
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itemId = getRandom(this.yellowAvatars);
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} else {
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itemId = getRandom(this.yellowWeapons);
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}
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}
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// Pity
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gachaInfo.addPity4(1);
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gachaInfo.setPity5(0);
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} else if (random >= purpleChance || gachaInfo.getPity4() >= 9) {
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if (banner.getRateUpItems2().length > 0) {
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int eventChance = this.randomRange(1, 100);
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if (eventChance >= 50) {
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itemId = getRandom(banner.getRateUpItems2());
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}
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}
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if (itemId == 0) {
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int typeChance = this.randomRange(banner.getMinItemType(), banner.getMaxItemType());
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if (typeChance == 1) {
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itemId = getRandom(this.purpleAvatars);
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} else {
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itemId = getRandom(this.purpleWeapons);
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}
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}
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// Pity
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gachaInfo.addPity5(1);
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gachaInfo.setPity4(0);
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} else {
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itemId = getRandom(this.blueWeapons);
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// Pity
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gachaInfo.addPity4(1);
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gachaInfo.addPity5(1);
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}
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// Add winning item
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wonItems.add(itemId);
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}
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// Add to character
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List<GachaItem> list = new ArrayList<>();
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int stardust = 0, starglitter = 0;
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for (int itemId : wonItems) {
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ItemData itemData = GenshinData.getItemDataMap().get(itemId);
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if (itemData == null) {
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continue;
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}
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// Create gacha item
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GachaItem.Builder gachaItem = GachaItem.newBuilder();
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int addStardust = 0, addStarglitter = 0;
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boolean isTransferItem = false;
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// Const check
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if (itemData.getMaterialType() == MaterialType.MATERIAL_AVATAR) {
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int avatarId = (itemData.getId() % 1000) + 10000000;
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GenshinAvatar avatar = player.getAvatars().getAvatarById(avatarId);
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if (avatar != null) {
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int constLevel = avatar.getCoreProudSkillLevel();
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int constItemId = itemData.getId() + 100;
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GenshinItem constItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(constItemId);
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if (constItem != null) {
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constLevel += constItem.getCount();
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}
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if (constLevel < 6) {
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// Not max const
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addStarglitter = 2;
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// Add 1 const
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gachaItem.addTransferItems(GachaTransferItem.newBuilder().setItem(ItemParam.newBuilder().setItemId(constItemId).setCount(1)).setIsTransferItemNew(constItem == null));
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gachaItem.addTokenItemList(ItemParam.newBuilder().setItemId(constItemId).setCount(1));
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player.getInventory().addItem(constItemId, 1);
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} else {
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// Is max const
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addStarglitter = 5;
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}
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if (itemData.getRankLevel() == 5) {
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addStarglitter *= 5;
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}
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isTransferItem = true;
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} else {
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// New
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gachaItem.setIsGachaItemNew(true);
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}
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} else {
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// Is weapon
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switch (itemData.getRankLevel()) {
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case 5:
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addStarglitter = 10;
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break;
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case 4:
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addStarglitter = 2;
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break;
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case 3:
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addStardust = 15;
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break;
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}
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}
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// Create item
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GenshinItem item = new GenshinItem(itemData);
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gachaItem.setGachaItem(item.toItemParam());
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player.getInventory().addItem(item);
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stardust += addStardust;
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starglitter += addStarglitter;
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if (addStardust > 0) {
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gachaItem.addTokenItemList(ItemParam.newBuilder().setItemId(stardustId).setCount(addStardust));
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} if (addStarglitter > 0) {
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ItemParam starglitterParam = ItemParam.newBuilder().setItemId(starglitterId).setCount(addStarglitter).build();
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if (isTransferItem) {
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gachaItem.addTransferItems(GachaTransferItem.newBuilder().setItem(starglitterParam));
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}
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gachaItem.addTokenItemList(starglitterParam);
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}
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list.add(gachaItem.build());
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}
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// Add stardust/starglitter
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if (stardust > 0) {
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player.getInventory().addItem(stardustId, stardust);
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} if (starglitter > 0) {
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player.getInventory().addItem(starglitterId, starglitter);
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}
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// Packets
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player.sendPacket(new PacketDoGachaRsp(banner, list));
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}
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private synchronized GetGachaInfoRsp createProto() {
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GetGachaInfoRsp.Builder proto = GetGachaInfoRsp.newBuilder().setGachaRandom(12345);
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for (GachaBanner banner : getGachaBanners().values()) {
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proto.addGachaInfoList(banner.toProto());
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}
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return proto.build();
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}
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public GetGachaInfoRsp toProto() {
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if (this.cachedProto == null) {
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this.cachedProto = createProto();
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}
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return this.cachedProto;
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}
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}
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