Building mods against custom Minecraft Forge version
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So me and a couple of friends are playing with a shitpost mod pack and one of the mods in the pack is corail tombstone and for some reason there is a problem with it, where on death to fire the player will get kicked out of the server and the tombstone will not spawn basically deleting an entire inventory, it doesn't matter what type of fire it is, whether it's from vanilla fire/lava, or from modded fire like ice&fire/lycanites and it's common enough to where everyone on the server has experienced at least once or twice and it doesn't give any crash log. a solution to this would be much appreciated thank you! -
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By TileEntity · Posted
It is 1.12.2 - I have no idea if there is a 1.12 pack -
Okay, but does the modpack works with 1.12 or just with 1.12.2, because I need the Forge client specifically for Minecraft 1.12, not 1.12.2
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By vals_kenway · Posted
Version 1.19 - Forge 41.0.63 I want to create a wolf entity that I can ride, so far it seems to be working, but the problem is that when I get on the wolf, I can’t control it. I then discovered that the issue is that the server doesn’t detect that I’m riding the wolf, so I’m struggling with synchronization. However, it seems to not be working properly. As I understand it, the server receives the packet but doesn’t register it correctly. I’m a bit new to Java, and I’ll try to provide all the relevant code and prints *The comments and prints are translated by chatgpt since they were originally in Spanish* Thank you very much in advance No player is mounted, or the passenger is not a player. No player is mounted, or the passenger is not a player. No player is mounted, or the passenger is not a player. No player is mounted, or the passenger is not a player. No player is mounted, or the passenger is not a player. MountableWolfEntity package com.vals.valscraft.entity; import com.vals.valscraft.network.MountSyncPacket; import com.vals.valscraft.network.NetworkHandler; import net.minecraft.client.Minecraft; import net.minecraft.network.syncher.EntityDataAccessor; import net.minecraft.network.syncher.EntityDataSerializers; import net.minecraft.network.syncher.SynchedEntityData; import net.minecraft.server.MinecraftServer; import net.minecraft.server.level.ServerPlayer; import net.minecraft.world.entity.EntityType; import net.minecraft.world.entity.Mob; import net.minecraft.world.entity.ai.attributes.AttributeSupplier; import net.minecraft.world.entity.ai.attributes.Attributes; import net.minecraft.world.entity.animal.Wolf; import net.minecraft.world.entity.player.Player; import net.minecraft.world.entity.Entity; import net.minecraft.world.InteractionHand; import net.minecraft.world.InteractionResult; import net.minecraft.world.item.ItemStack; import net.minecraft.world.item.Items; import net.minecraft.world.level.Level; import net.minecraft.world.phys.Vec3; import net.minecraftforge.event.TickEvent; import net.minecraftforge.eventbus.api.SubscribeEvent; import net.minecraftforge.network.PacketDistributor; public class MountableWolfEntity extends Wolf { private boolean hasSaddle; private static final EntityDataAccessor<Byte> DATA_ID_FLAGS = SynchedEntityData.defineId(MountableWolfEntity.class, EntityDataSerializers.BYTE); public MountableWolfEntity(EntityType<? extends Wolf> type, Level level) { super(type, level); this.hasSaddle = false; } @Override protected void defineSynchedData() { super.defineSynchedData(); this.entityData.define(DATA_ID_FLAGS, (byte)0); } public static AttributeSupplier.Builder createAttributes() { return Wolf.createAttributes() .add(Attributes.MAX_HEALTH, 20.0) .add(Attributes.MOVEMENT_SPEED, 0.3); } @Override public InteractionResult mobInteract(Player player, InteractionHand hand) { ItemStack itemstack = player.getItemInHand(hand); if (itemstack.getItem() == Items.SADDLE && !this.hasSaddle()) { if (!player.isCreative()) { itemstack.shrink(1); } this.setSaddle(true); return InteractionResult.SUCCESS; } else if (!level.isClientSide && this.hasSaddle()) { player.startRiding(this); MountSyncPacket packet = new MountSyncPacket(true); // 'true' means the player is mounted NetworkHandler.CHANNEL.sendToServer(packet); // Ensure the server handles the packet return InteractionResult.SUCCESS; } return InteractionResult.PASS; } @Override public void travel(Vec3 travelVector) { if (this.isVehicle() && this.getControllingPassenger() instanceof Player) { System.out.println("The wolf has a passenger."); System.out.println("The passenger is a player."); Player player = (Player) this.getControllingPassenger(); // Ensure the player is the controller this.setYRot(player.getYRot()); this.yRotO = this.getYRot(); this.setXRot(player.getXRot() * 0.5F); this.setRot(this.getYRot(), this.getXRot()); this.yBodyRot = this.getYRot(); this.yHeadRot = this.yBodyRot; float forward = player.zza; float strafe = player.xxa; if (forward <= 0.0F) { forward *= 0.25F; } this.flyingSpeed = this.getSpeed() * 0.1F; this.setSpeed((float) this.getAttributeValue(Attributes.MOVEMENT_SPEED) * 1.5F); this.setDeltaMovement(new Vec3(strafe, travelVector.y, forward).scale(this.getSpeed())); this.calculateEntityAnimation(this, false); } else { // The wolf does not have a passenger or the passenger is not a player System.out.println("No player is mounted, or the passenger is not a player."); super.travel(travelVector); } } public boolean hasSaddle() { return this.hasSaddle; } public void setSaddle(boolean hasSaddle) { this.hasSaddle = hasSaddle; } @Override protected void dropEquipment() { super.dropEquipment(); if (this.hasSaddle()) { this.spawnAtLocation(Items.SADDLE); this.setSaddle(false); } } @SubscribeEvent public static void onServerTick(TickEvent.ServerTickEvent event) { if (event.phase == TickEvent.Phase.START) { MinecraftServer server = net.minecraftforge.server.ServerLifecycleHooks.getCurrentServer(); if (server != null) { for (ServerPlayer player : server.getPlayerList().getPlayers()) { if (player.isPassenger() && player.getVehicle() instanceof MountableWolfEntity) { MountableWolfEntity wolf = (MountableWolfEntity) player.getVehicle(); System.out.println("Tick: " + player.getName().getString() + " is correctly mounted on " + wolf); } } } } } private boolean lastMountedState = false; @Override public void tick() { super.tick(); if (!this.level.isClientSide) { // Only on the server boolean isMounted = this.isVehicle() && this.getControllingPassenger() instanceof Player; // Only print if the state changed if (isMounted != lastMountedState) { if (isMounted) { Player player = (Player) this.getControllingPassenger(); // Verify the passenger is a player System.out.println("Server: Player " + player.getName().getString() + " is now mounted."); } else { System.out.println("Server: The wolf no longer has a passenger."); } lastMountedState = isMounted; } } } @Override public void addPassenger(Entity passenger) { super.addPassenger(passenger); if (passenger instanceof Player) { Player player = (Player) passenger; if (!this.level.isClientSide && player instanceof ServerPlayer) { // Send the packet to the server to indicate the player is mounted NetworkHandler.CHANNEL.send(PacketDistributor.PLAYER.with(() -> (ServerPlayer) player), new MountSyncPacket(true)); } } } @Override public void removePassenger(Entity passenger) { super.removePassenger(passenger); if (passenger instanceof Player) { Player player = (Player) passenger; if (!this.level.isClientSide && player instanceof ServerPlayer) { // Send the packet to the server to indicate the player is no longer mounted NetworkHandler.CHANNEL.send(PacketDistributor.PLAYER.with(() -> (ServerPlayer) player), new MountSyncPacket(false)); } } } @Override public boolean isControlledByLocalInstance() { Entity entity = this.getControllingPassenger(); return entity instanceof Player; } @Override public void positionRider(Entity passenger) { if (this.hasPassenger(passenger)) { double xOffset = Math.cos(Math.toRadians(this.getYRot() + 90)) * 0.4; double zOffset = Math.sin(Math.toRadians(this.getYRot() + 90)) * 0.4; passenger.setPos(this.getX() + xOffset, this.getY() + this.getPassengersRidingOffset() + passenger.getMyRidingOffset(), this.getZ() + zOffset); } } } MountSyncPacket package com.vals.valscraft.network; import com.vals.valscraft.entity.MountableWolfEntity; import net.minecraft.network.FriendlyByteBuf; import net.minecraft.server.level.ServerLevel; import net.minecraft.server.level.ServerPlayer; import net.minecraft.world.entity.Entity; import net.minecraft.world.entity.player.Player; import net.minecraftforge.network.NetworkEvent; import java.util.function.Supplier; public class MountSyncPacket { private final boolean isMounted; public MountSyncPacket(boolean isMounted) { this.isMounted = isMounted; } public void encode(FriendlyByteBuf buffer) { buffer.writeBoolean(isMounted); } public static MountSyncPacket decode(FriendlyByteBuf buffer) { return new MountSyncPacket(buffer.readBoolean()); } public void handle(NetworkEvent.Context context) { context.enqueueWork(() -> { ServerPlayer player = context.getSender(); // Get the player from the context if (player != null) { // Verifies if the player has dismounted if (!isMounted) { Entity vehicle = player.getVehicle(); if (vehicle instanceof MountableWolfEntity wolf) { // Logic to remove the player as a passenger wolf.removePassenger(player); System.out.println("Server: Player " + player.getName().getString() + " is no longer mounted."); } } } }); context.setPacketHandled(true); // Marks the packet as handled } } networkHandler package com.vals.valscraft.network; import com.vals.valscraft.valscraft; import net.minecraft.resources.ResourceLocation; import net.minecraftforge.network.NetworkRegistry; import net.minecraftforge.network.simple.SimpleChannel; import net.minecraftforge.network.NetworkEvent; import java.util.function.Supplier; public class NetworkHandler { private static final String PROTOCOL_VERSION = "1"; public static final SimpleChannel CHANNEL = NetworkRegistry.newSimpleChannel( new ResourceLocation(valscraft.MODID, "main"), () -> PROTOCOL_VERSION, PROTOCOL_VERSION::equals, PROTOCOL_VERSION::equals ); public static void init() { int packetId = 0; // Register the mount synchronization packet CHANNEL.registerMessage( packetId++, MountSyncPacket.class, MountSyncPacket::encode, MountSyncPacket::decode, (msg, context) -> msg.handle(context.get()) // Get the context with context.get() ); } }
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