Add PlayerChatEvent

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

@@ -0,0 +1,79 @@
+package emu.grasscutter.server.event.player;
+
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.server.event.Cancellable;
+import emu.grasscutter.server.event.types.PlayerEvent;
+import lombok.Getter;
+import lombok.Setter;
+
+import javax.annotation.Nullable;
+
+@Getter @Setter
+public final class PlayerChatEvent extends PlayerEvent implements Cancellable {
+    private String message;
+
+    /**
+     * This field being null signifies a message is being sent to a public chat.
+     * This can include either a global chat or a team chat.
+     */
+    @Nullable private Player to;
+
+    /**
+     * This field is not null when the message is being sent to a public chat.
+     * Refer to {@link #to} for more information.
+     */
+    @Nullable private Integer channelId;
+
+    public PlayerChatEvent(Player player, String message, @Nullable Player to) {
+        super(player);
+
+        this.message = message;
+        this.to = to;
+    }
+
+    public PlayerChatEvent(Player player, int emoteId, @Nullable Player to) {
+        super(player);
+
+        this.message = String.valueOf(emoteId);
+        this.to = to;
+    }
+
+    public PlayerChatEvent(Player player, String message, int channelId) {
+        super(player);
+
+        this.message = message;
+        this.channelId = channelId;
+    }
+
+    public PlayerChatEvent(Player player, int emoteId, int channelId) {
+        super(player);
+
+        this.message = String.valueOf(emoteId);
+        this.channelId = channelId;
+    }
+
+    /**
+     * @return The target player's UID.
+     */
+    public int getTargetUid() {
+        return this.to == null ? -1 : this.to.getUid();
+    }
+
+    /**
+     * @return The message as an integer, or -1 if it's not an integer.
+     */
+    public int getMessageAsInt() {
+        try {
+            return Integer.parseInt(this.message);
+        } catch (NumberFormatException e) {
+            return -1;
+        }
+    }
+
+    /**
+     * @return The channel ID, or -1 if it's not a channel message.
+     */
+    public int getChannel() {
+        return this.channelId == null ? -1 : this.channelId;
+    }
+}