Add PlayerWishEvent

src/main/java/emu/grasscutter/server/event/player/PlayerWishEvent.java

@@ -0,0 +1,64 @@
+package emu.grasscutter.server.event.player;
+
+import emu.grasscutter.game.gacha.GachaBanner;
+import emu.grasscutter.game.inventory.GameItem;
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.net.proto.GachaItemOuterClass.GachaItem;
+import emu.grasscutter.server.event.Cancellable;
+import emu.grasscutter.server.event.types.PlayerEvent;
+import lombok.*;
+
+import java.util.List;
+
+@Getter
+public final class PlayerWishEvent extends PlayerEvent implements Cancellable {
+    @Setter private GachaBanner banner;
+    @Setter private int wishCount;
+    private final Pity pity;
+    @Setter private List<GameItem> receivedItems;
+
+    private boolean preItems = true;
+
+    public PlayerWishEvent(
+        Player player, GachaBanner banner,
+        int wishCount, Pity pity
+    ) {
+        super(player);
+
+        this.banner = banner;
+        this.wishCount = wishCount;
+        this.pity = pity;
+    }
+
+    /**
+     * Should be invoked after items have been generated.
+     * This will recall the event.
+     *
+     * @param receivedItems The items received.
+     */
+    public void finish(List<GameItem> receivedItems) {
+        this.receivedItems = receivedItems;
+        this.preItems = false;
+
+        this.call();
+    }
+
+    @Getter
+    @AllArgsConstructor
+    public static final class Pity {
+        private final int five;
+        private final int four;
+        private final boolean guaranteed4;
+        private final boolean guaranteed5;
+    }
+
+    @Getter
+    @AllArgsConstructor
+    public static final class WishCompute {
+        private final GameItem item;
+        private final GachaItem.Builder gacha;
+        private final int addStardust;
+        private final int addStarglitter;
+        private final boolean isTransferItem;
+    }
+}