emu.grasscutter.game.gacha.GachaManager Maven / Gradle / Ivy
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A server software reimplementation for an anime game.
package emu.grasscutter.game.gacha;
import java.io.File;
import java.io.FileReader;
import java.nio.file.*;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.ThreadLocalRandom;
import com.google.gson.reflect.TypeToken;
import com.sun.nio.file.SensitivityWatchEventModifier;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.data.GenshinData;
import emu.grasscutter.data.def.ItemData;
import emu.grasscutter.game.GenshinPlayer;
import emu.grasscutter.game.avatar.GenshinAvatar;
import emu.grasscutter.game.inventory.GenshinItem;
import emu.grasscutter.game.inventory.ItemType;
import emu.grasscutter.game.inventory.MaterialType;
import emu.grasscutter.net.proto.GachaItemOuterClass.GachaItem;
import emu.grasscutter.net.proto.GachaTransferItemOuterClass.GachaTransferItem;
import emu.grasscutter.net.proto.GetGachaInfoRspOuterClass.GetGachaInfoRsp;
import emu.grasscutter.net.proto.ItemParamOuterClass.ItemParam;
import emu.grasscutter.server.game.GameServer;
import emu.grasscutter.server.game.GameServerTickEvent;
import emu.grasscutter.server.packet.send.PacketDoGachaRsp;
import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
import it.unimi.dsi.fastutil.ints.IntArrayList;
import it.unimi.dsi.fastutil.ints.IntList;
import org.greenrobot.eventbus.Subscribe;
public class GachaManager {
private final GameServer server;
private final Int2ObjectMap gachaBanners;
private GetGachaInfoRsp cachedProto;
WatchService watchService;
private int[] yellowAvatars = new int[] {1003, 1016, 1042, 1035, 1041};
private int[] yellowWeapons = new int[] {11501, 11502, 12501, 12502, 13502, 13505, 14501, 14502, 15501, 15502};
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};
private int[] purpleWeapons = new int[] {11401, 11402, 11403, 11405, 12401, 12402, 12403, 12405, 13401, 13407, 14401, 14402, 14403, 14409, 15401, 15402, 15403, 15405};
private int[] blueWeapons = new int[] {11301, 11302, 11306, 12301, 12302, 12305, 13303, 14301, 14302, 14304, 15301, 15302, 15304};
private static int starglitterId = 221;
private static int stardustId = 222;
public GachaManager(GameServer server) {
this.server = server;
this.gachaBanners = new Int2ObjectOpenHashMap<>();
this.load();
this.startWatcher(server);
}
public GameServer getServer() {
return server;
}
public Int2ObjectMap getGachaBanners() {
return gachaBanners;
}
public int randomRange(int min, int max) {
return ThreadLocalRandom.current().nextInt(max - min + 1) + min;
}
public int getRandom(int[] array) {
return array[randomRange(0, array.length - 1)];
}
public synchronized void load() {
try (FileReader fileReader = new FileReader(Grasscutter.getConfig().DATA_FOLDER + "Banners.json")) {
getGachaBanners().clear();
List banners = Grasscutter.getGsonFactory().fromJson(fileReader, TypeToken.getParameterized(Collection.class, GachaBanner.class).getType());
if(banners.size() > 0) {
for (GachaBanner banner : banners) {
getGachaBanners().put(banner.getGachaType(), banner);
}
Grasscutter.getLogger().info("Banners successfully loaded.");
this.cachedProto = createProto();
} else {
Grasscutter.getLogger().error("Unable to load banners. Banners size is 0.");
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public synchronized void doPulls(GenshinPlayer player, int gachaType, int times) {
// Sanity check
if (times != 10 && times != 1) {
return;
}
if (player.getInventory().getInventoryTab(ItemType.ITEM_WEAPON).getSize() + times > player.getInventory().getInventoryTab(ItemType.ITEM_WEAPON).getMaxCapacity()) {
player.sendPacket(new PacketDoGachaRsp());
return;
}
// Get banner
GachaBanner banner = this.getGachaBanners().get(gachaType);
if (banner == null) {
player.sendPacket(new PacketDoGachaRsp());
return;
}
// Spend currency
if (banner.getCostItem() > 0) {
GenshinItem costItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(banner.getCostItem());
if (costItem == null || costItem.getCount() < times) {
return;
}
player.getInventory().removeItem(costItem, times);
}
// Roll
PlayerGachaBannerInfo gachaInfo = player.getGachaInfo().getBannerInfo(banner);
IntList wonItems = new IntArrayList(times);
for (int i = 0; i < times; i++) {
int random = this.randomRange(1, 10000);
int itemId = 0;
int bonusYellowChance = gachaInfo.getPity5() >= banner.getSoftPity() ? 100 * (gachaInfo.getPity5() - banner.getSoftPity() - 1): 0;
int yellowChance = 60 + (int) Math.floor(100f * (gachaInfo.getPity5() / (banner.getSoftPity() - 1D))) + bonusYellowChance;
int purpleChance = 10000 - (510 + (int) Math.floor(790f * (gachaInfo.getPity4() / 8f)));
if (random <= yellowChance || gachaInfo.getPity5() >= banner.getHardPity()) {
if (banner.getRateUpItems1().length > 0) {
int eventChance = this.randomRange(1, 100);
if (eventChance >= banner.getEventChance() || gachaInfo.getFailedFeaturedItemPulls() >= 1) {
itemId = getRandom(banner.getRateUpItems1());
gachaInfo.setFailedFeaturedItemPulls(0);
} else {
// Lost the 50/50... rip
gachaInfo.addFailedFeaturedItemPulls(1);
}
}
if (itemId == 0) {
int typeChance = this.randomRange(banner.getMinItemType(), banner.getMaxItemType());
if (typeChance == 1) {
itemId = getRandom(this.yellowAvatars);
} else {
itemId = getRandom(this.yellowWeapons);
}
}
// Pity
gachaInfo.addPity4(1);
gachaInfo.setPity5(0);
} else if (random >= purpleChance || gachaInfo.getPity4() >= 9) {
if (banner.getRateUpItems2().length > 0) {
int eventChance = this.randomRange(1, 100);
if (eventChance >= 50) {
itemId = getRandom(banner.getRateUpItems2());
}
}
if (itemId == 0) {
int typeChance = this.randomRange(banner.getMinItemType(), banner.getMaxItemType());
if (typeChance == 1) {
itemId = getRandom(this.purpleAvatars);
} else {
itemId = getRandom(this.purpleWeapons);
}
}
// Pity
gachaInfo.addPity5(1);
gachaInfo.setPity4(0);
} else {
itemId = getRandom(this.blueWeapons);
// Pity
gachaInfo.addPity4(1);
gachaInfo.addPity5(1);
}
// Add winning item
wonItems.add(itemId);
}
// Add to character
List list = new ArrayList<>();
int stardust = 0, starglitter = 0;
for (int itemId : wonItems) {
ItemData itemData = GenshinData.getItemDataMap().get(itemId);
if (itemData == null) {
continue;
}
// Create gacha item
GachaItem.Builder gachaItem = GachaItem.newBuilder();
int addStardust = 0, addStarglitter = 0;
boolean isTransferItem = false;
// Const check
if (itemData.getMaterialType() == MaterialType.MATERIAL_AVATAR) {
int avatarId = (itemData.getId() % 1000) + 10000000;
GenshinAvatar avatar = player.getAvatars().getAvatarById(avatarId);
if (avatar != null) {
int constLevel = avatar.getCoreProudSkillLevel();
int constItemId = itemData.getId() + 100;
GenshinItem constItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(constItemId);
if (constItem != null) {
constLevel += constItem.getCount();
}
if (constLevel < 6) {
// Not max const
addStarglitter = 2;
// Add 1 const
gachaItem.addTransferItems(GachaTransferItem.newBuilder().setItem(ItemParam.newBuilder().setItemId(constItemId).setCount(1)).setIsTransferItemNew(constItem == null));
player.getInventory().addItem(constItemId, 1);
} else {
// Is max const
addStarglitter = 5;
}
if (itemData.getRankLevel() == 5) {
addStarglitter *= 5;
}
isTransferItem = true;
} else {
// New
gachaItem.setIsGachaItemNew(true);
}
} else {
// Is weapon
switch (itemData.getRankLevel()) {
case 5:
addStarglitter = 10;
break;
case 4:
addStarglitter = 2;
break;
case 3:
addStardust = 15;
break;
}
}
// Create item
GenshinItem item = new GenshinItem(itemData);
gachaItem.setGachaItem(item.toItemParam());
player.getInventory().addItem(item);
stardust += addStardust;
starglitter += addStarglitter;
if (addStardust > 0) {
gachaItem.addTokenItemList(ItemParam.newBuilder().setItemId(stardustId).setCount(addStardust));
} if (addStarglitter > 0) {
ItemParam starglitterParam = ItemParam.newBuilder().setItemId(starglitterId).setCount(addStarglitter).build();
if (isTransferItem) {
gachaItem.addTransferItems(GachaTransferItem.newBuilder().setItem(starglitterParam));
}
gachaItem.addTokenItemList(starglitterParam);
}
list.add(gachaItem.build());
}
// Add stardust/starglitter
if (stardust > 0) {
player.getInventory().addItem(stardustId, stardust);
} if (starglitter > 0) {
player.getInventory().addItem(starglitterId, starglitter);
}
// Packets
player.sendPacket(new PacketDoGachaRsp(banner, list));
}
private synchronized void startWatcher(GameServer server) {
if(this.watchService == null) {
try {
this.watchService = FileSystems.getDefault().newWatchService();
Path path = new File(Grasscutter.getConfig().DATA_FOLDER).toPath();
path.register(watchService, new WatchEvent.Kind[]{StandardWatchEventKinds.ENTRY_MODIFY}, SensitivityWatchEventModifier.HIGH);
} catch (Exception e) {
Grasscutter.getLogger().error("Unable to load the Gacha Manager Watch Service. If ServerOptions.watchGacha is true it will not auto-reload");
e.printStackTrace();
}
} else {
Grasscutter.getLogger().error("Cannot reinitialise watcher ");
}
}
@Subscribe
public synchronized void watchBannerJson(GameServerTickEvent tickEvent) {
if(Grasscutter.getConfig().getGameServerOptions().WatchGacha) {
try {
WatchKey watchKey = watchService.take();
for (WatchEvent event : watchKey.pollEvents()) {
final Path changed = (Path) event.context();
if (changed.endsWith("Banners.json")) {
Grasscutter.getLogger().info("Change detected with banners.json. Reloading gacha config");
this.load();
}
}
boolean valid = watchKey.reset();
if (!valid) {
Grasscutter.getLogger().error("Unable to reset Gacha Manager Watch Key. Auto-reload of banners.json will no longer work.");
return;
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
private synchronized GetGachaInfoRsp createProto() {
GetGachaInfoRsp.Builder proto = GetGachaInfoRsp.newBuilder().setGachaRandom(12345);
for (GachaBanner banner : getGachaBanners().values()) {
proto.addGachaInfoList(banner.toProto());
}
return proto.build();
}
public GetGachaInfoRsp toProto() {
if (this.cachedProto == null) {
this.cachedProto = createProto();
}
return this.cachedProto;
}
}