feat(game): add start event and listener implementation

Author: theEvilReaper

game/src/main/java/net/onelitefeather/cygnus/event/GameStartEvent.java

@@ -0,0 +1,6 @@
+package net.onelitefeather.cygnus.event;
+
+import net.minestom.server.event.Event;
+
+public class GameStartEvent implements Event {
+}

game/src/main/java/net/onelitefeather/cygnus/listener/game/GameStartListener.java

@@ -0,0 +1,54 @@
+package net.onelitefeather.cygnus.listener.game;
+
+import net.minestom.server.MinecraftServer;
+import net.minestom.server.utils.PacketSendingUtils;
+import net.onelitefeather.cygnus.ambient.AmbientProvider;
+import net.onelitefeather.cygnus.common.Messages;
+import net.onelitefeather.cygnus.common.Tags;
+import net.onelitefeather.cygnus.common.page.PageProvider;
+import net.onelitefeather.cygnus.common.util.Helper;
+import net.onelitefeather.cygnus.event.GameStartEvent;
+import net.onelitefeather.cygnus.stamina.StaminaService;
+import net.onelitefeather.cygnus.utils.Items;
+import net.onelitefeather.cygnus.utils.TeamHelper;
+import net.theevilreaper.xerus.api.team.TeamService;
+
+import java.util.function.Consumer;
+
+public final class GameStartListener implements Consumer<GameStartEvent> {
+
+    private final TeamService teamService;
+    private final AmbientProvider ambientProvider;
+    private final StaminaService staminaService;
+    private final PageProvider pageProvider;
+
+    public GameStartListener(TeamService teamService, AmbientProvider ambientProvider, StaminaService staminaService, PageProvider pageProvider) {
+        this.teamService = teamService;
+        this.ambientProvider = ambientProvider;
+        this.staminaService = staminaService;
+        this.pageProvider = pageProvider;
+    }
+
+    @Override
+    public void accept(GameStartEvent event) {
+        var slenderPlayer = this.teamService.getTeams().get(Helper.SLENDER_ID).getPlayers().stream().findFirst().get();
+        slenderPlayer.setTag(Tags.HIDDEN, (byte) 1);
+        slenderPlayer.sendMessage(Messages.SLENDER_JOIN_PART);
+        Items.setSlenderEye(slenderPlayer);
+        this.staminaService.start();
+        this.pageProvider.spawn();
+        this.ambientProvider.startTask();
+        var message = Messages.getSurvivorJoinMessage(String.valueOf(this.pageProvider.getMaxPageAmount()));
+        this.teamService.getTeams().get(Helper.SURVIVOR_ID).getPlayers().forEach(player -> {
+            player.sendMessage(message);
+            player.setTag(Tags.HIDDEN, (byte) 0);
+        });
+        TeamHelper.updateTabList(this.teamService);
+        PacketSendingUtils.broadcastPlayPacket(slenderPlayer.getMetadataPacket());
+        MinecraftServer.getConnectionManager().getOnlinePlayers()
+                .stream()
+                .filter(p -> !p.equals(slenderPlayer))
+                .forEach(slenderPlayer::updateOldViewer);
+        PacketSendingUtils.broadcastPlayPacket(slenderPlayer.getMetadataPacket());
+    }
+}