RocketEntites can now launch to a specified dimension and position. Added /aphelion rocket (entity) destination, launch, and launchTo

src/main/java/net/xevianlight/aphelion/network/KeyNetwork.java

@@ -0,0 +1,28 @@
+package net.xevianlight.aphelion.network;
+
+
+import net.minecraft.client.Minecraft;
+import net.neoforged.bus.api.SubscribeEvent;
+import net.neoforged.fml.common.EventBusSubscriber;
+import net.neoforged.neoforge.client.event.ClientTickEvent;
+import net.neoforged.neoforge.network.PacketDistributor;
+import net.xevianlight.aphelion.Aphelion;
+import net.xevianlight.aphelion.entites.vehicles.RocketEntity;
+import net.xevianlight.aphelion.network.packet.RocketLaunchPayload;
+
+import net.xevianlight.aphelion.client.AphelionClient;
+
+@EventBusSubscriber(modid = Aphelion.MOD_ID)
+public final class KeyNetwork {
+
+    @SubscribeEvent
+    public static void onClientTick(ClientTickEvent.Post event) {
+        Minecraft mc = Minecraft.getInstance();
+        if (mc.player == null) return;
+
+        // consumeClick makes it fire once per press, not every tick held
+        if (AphelionClient.ROCKET_LAUNCH_KEY.consumeClick() && mc.player.getVehicle() instanceof RocketEntity rocket) {
+            PacketDistributor.sendToServer(new RocketLaunchPayload(rocket.getId()));
+        }
+    }
+}

src/main/java/net/xevianlight/aphelion/network/RocketPayloadHandlers.java

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+package net.xevianlight.aphelion.network;
+
+import net.minecraft.server.level.ServerPlayer;
+import net.neoforged.neoforge.network.handling.IPayloadContext;
+import net.xevianlight.aphelion.Aphelion;
+import net.xevianlight.aphelion.entites.vehicles.RocketEntity;
+import net.xevianlight.aphelion.network.packet.RocketLaunchPayload;
+
+public final class RocketPayloadHandlers {
+
+    public static void handleRocketLaunch(final RocketLaunchPayload payload, final IPayloadContext ctx) {
+        Aphelion.LOGGER.info("Rocket launch command received");
+
+        // Ensure we run on the server thread
+        ctx.enqueueWork(() -> {
+            if (!(ctx.player() instanceof ServerPlayer sp)) return;
+
+            var level = sp.serverLevel();
+            var e = level.getEntity(payload.rocketEntityId());
+            if (!(e instanceof RocketEntity rocket)) return;
+
+            // Security: only allow if the sender is actually riding this rocket
+            if (sp.getVehicle() != rocket) return;
+
+            // Start launch
+            if (rocket.getPhase() == RocketEntity.FlightPhase.IDLE
+                    || rocket.getPhase() == RocketEntity.FlightPhase.LANDED) {
+                rocket.launch();
+            }
+        });
+    }
+}

src/main/java/net/xevianlight/aphelion/network/packet/RocketLaunchPayload.java

@@ -0,0 +1,24 @@
+package net.xevianlight.aphelion.network.packet;
+
+import io.netty.buffer.ByteBuf;
+import net.minecraft.network.codec.ByteBufCodecs;
+import net.minecraft.network.codec.StreamCodec;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
+
+public record RocketLaunchPayload(int rocketEntityId) implements CustomPacketPayload {
+
+    public static final Type<RocketLaunchPayload> TYPE =
+            new Type<>(ResourceLocation.fromNamespaceAndPath("aphelion", "rocket_launch"));
+
+    public static final StreamCodec<ByteBuf, RocketLaunchPayload> STREAM_CODEC =
+            StreamCodec.composite(
+                    ByteBufCodecs.VAR_INT, RocketLaunchPayload::rocketEntityId,
+                    RocketLaunchPayload::new
+            );
+
+    @Override
+    public Type<? extends CustomPacketPayload> type() {
+        return TYPE;
+    }
+}