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package io.github.r1fom.subborder;
import net.minecraft.core.registries.BuiltInRegistries;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.item.Item;
import net.neoforged.bus.api.SubscribeEvent;
import net.neoforged.fml.common.EventBusSubscriber;
import net.neoforged.fml.event.config.ModConfigEvent;
import net.neoforged.neoforge.common.ModConfigSpec;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
// An example config class. This is not required, but it's a good idea to have one to keep your config organized.
// Demonstrates how to use Neo's config APIs
@EventBusSubscriber(modid = Subborder.MODID, bus = EventBusSubscriber.Bus.MOD)
public class Config {
private static final ModConfigSpec.Builder BUILDER = new ModConfigSpec.Builder();
private static final ModConfigSpec.BooleanValue LOG_DIRT_BLOCK = BUILDER.comment("Whether to log the dirt block on common setup").define("logDirtBlock", true);
private static final ModConfigSpec.IntValue MAGIC_NUMBER = BUILDER.comment("A magic number").defineInRange("magicNumber", 42, 0, Integer.MAX_VALUE);
public static final ModConfigSpec.ConfigValue<String> MAGIC_NUMBER_INTRODUCTION = BUILDER.comment("What you want the introduction message to be for the magic number").define("magicNumberIntroduction", "The magic number is... ");
// a list of strings that are treated as resource locations for items
private static final ModConfigSpec.ConfigValue<List<? extends String>> ITEM_STRINGS = BUILDER.comment("A list of items to log on common setup.").defineListAllowEmpty("items", List.of("minecraft:iron_ingot"), Config::validateItemName);
static final ModConfigSpec SPEC = BUILDER.build();
public static boolean logDirtBlock;
public static int magicNumber;
public static String magicNumberIntroduction;
public static Set<Item> items;
private static boolean validateItemName(final Object obj) {
return obj instanceof String itemName && BuiltInRegistries.ITEM.containsKey(ResourceLocation.parse(itemName));
}
@SubscribeEvent
static void onLoad(final ModConfigEvent event) {
logDirtBlock = LOG_DIRT_BLOCK.get();
magicNumber = MAGIC_NUMBER.get();
magicNumberIntroduction = MAGIC_NUMBER_INTRODUCTION.get();
// convert the list of strings into a set of items
items = ITEM_STRINGS.get().stream().map(itemName -> BuiltInRegistries.ITEM.get(ResourceLocation.parse(itemName))).collect(Collectors.toSet());
}
}
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package io.github.r1fom.subborder;
import dev.ryanhcode.sable.api.physics.handle.RigidBodyHandle;
import dev.ryanhcode.sable.api.sublevel.ServerSubLevelContainer;
import dev.ryanhcode.sable.api.sublevel.SubLevelContainer;
import dev.ryanhcode.sable.companion.math.BoundingBox3dc;
import dev.ryanhcode.sable.companion.math.Pose3d;
import dev.ryanhcode.sable.neoforge.event.ForgeSablePostPhysicsTickEvent;
import dev.ryanhcode.sable.sublevel.ServerSubLevel;
import dev.ryanhcode.sable.sublevel.system.SubLevelPhysicsSystem;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.world.level.border.WorldBorder;
import net.neoforged.bus.api.SubscribeEvent;
import net.neoforged.fml.common.EventBusSubscriber;
import org.joml.Vector3d;
@EventBusSubscriber(modid = Subborder.MODID, bus = EventBusSubscriber.Bus.GAME)
public class SubLevelBorderHandler {
private static final double EPSILON = 1e-7;
@SubscribeEvent
public static void onPostPhysicsTick(ForgeSablePostPhysicsTickEvent event) {
SubLevelPhysicsSystem physicsSystem = event.getPhysicsSystem();
ServerLevel level = physicsSystem.getLevel();
ServerSubLevelContainer container = SubLevelContainer.getContainer(level);
if (container == null) return;
WorldBorder border = level.getWorldBorder();
double minX = border.getMinX();
double maxX = border.getMaxX();
double minZ = border.getMinZ();
double maxZ = border.getMaxZ();
for (ServerSubLevel subLevel : container.getAllSubLevels()) {
if (subLevel.isRemoved()) continue;
// Optimization: Skip sub-levels that are stationary and were already reported as stopped
if (subLevel.latestLinearVelocity.lengthSquared() < EPSILON &&
subLevel.latestAngularVelocity.lengthSquared() < EPSILON) {
if (subLevel.getLastNetworkedStopped()) continue;
}
BoundingBox3dc globalBounds = subLevel.boundingBox();
// Fast-path: Check if the sub-level is entirely within the border
if (globalBounds.minX() >= minX && globalBounds.maxX() <= maxX &&
globalBounds.minZ() >= minZ && globalBounds.maxZ() <= maxZ) {
continue;
}
Pose3d pose = subLevel.logicalPose();
Vector3d pos = new Vector3d(pose.position());
boolean moved = false;
// Check if bounds are outside the border
if (globalBounds.minX() < minX) {
pos.x += (minX - globalBounds.minX());
moved = true;
} else if (globalBounds.maxX() > maxX) {
pos.x -= (globalBounds.maxX() - maxX);
moved = true;
}
if (globalBounds.minZ() < minZ) {
pos.z += (minZ - globalBounds.minZ());
moved = true;
} else if (globalBounds.maxZ() > maxZ) {
pos.z -= (globalBounds.maxZ() - maxZ);
moved = true;
}
if (moved) {
RigidBodyHandle handle = physicsSystem.getPhysicsHandle(subLevel);
handle.teleport(pos, pose.orientation());
// Zero out velocity in the direction of the border to prevent jitter
Vector3d velocity = handle.getLinearVelocity(new Vector3d());
boolean velocityChanged = false;
if (globalBounds.minX() < minX && velocity.x < 0) {
velocity.x = 0;
velocityChanged = true;
} else if (globalBounds.maxX() > maxX && velocity.x > 0) {
velocity.x = 0;
velocityChanged = true;
}
if (globalBounds.minZ() < minZ && velocity.z < 0) {
velocity.z = 0;
velocityChanged = true;
} else if (globalBounds.maxZ() > maxZ && velocity.z > 0) {
velocity.z = 0;
velocityChanged = true;
}
if (velocityChanged) {
Vector3d currentVel = handle.getLinearVelocity(new Vector3d());
handle.addLinearAndAngularVelocity(new Vector3d(velocity).sub(currentVel), new Vector3d(0));
}
}
}
}
}
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package io.github.r1fom.subborder;
import net.neoforged.bus.api.IEventBus;
import net.neoforged.bus.api.SubscribeEvent;
import net.neoforged.fml.ModContainer;
import net.neoforged.fml.common.Mod;
import net.neoforged.fml.config.ModConfig;
import net.neoforged.fml.event.lifecycle.FMLCommonSetupEvent;
import net.neoforged.neoforge.common.NeoForge;
import net.neoforged.neoforge.event.server.ServerStartingEvent;
// The value here should match an entry in the META-INF/neoforge.mods.toml file
@Mod(Subborder.MODID)
public class Subborder {
public static final String MODID = "subborder";
public Subborder(IEventBus modEventBus, ModContainer modContainer) {
modEventBus.addListener(this::commonSetup);
NeoForge.EVENT_BUS.register(this);
modContainer.registerConfig(ModConfig.Type.COMMON, Config.SPEC);
}
private void commonSetup(final FMLCommonSetupEvent event) {
}
@SubscribeEvent
public void onServerStarting(ServerStartingEvent event) {
}
}
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{
"itemGroup.subborder": "Example Mod Tab",
"block.subborder.example_block": "Example Block",
"item.subborder.example_item": "Example Item"
}
+16
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{
"required": true,
"minVersion": "0.8",
"package": "io.github.r1fom.subborder.mixin",
"compatibilityLevel": "JAVA_21",
"mixins": [
],
"client": [
],
"injectors": {
"defaultRequire": 1
},
"overwrites": {
"requireAnnotations": true
}
}
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# This is an example mods.toml file. It contains the data relating to the loading mods.
# There are several mandatory fields (#mandatory), and many more that are optional (#optional).
# The overall format is standard TOML format, v0.5.0.
# Note that there are a couple of TOML lists in this file.
# Find more information on toml format here: https://github.com/toml-lang/toml
# The name of the mod loader type to load - for regular FML @Mod mods it should be javafml
modLoader = "javafml" #mandatory
# A version range to match for said mod loader - for regular FML @Mod it will be the the FML version. This is currently 47.
loaderVersion = "${loader_version_range}" #mandatory
# The license for you mod. This is mandatory metadata and allows for easier comprehension of your redistributive properties.
# Review your options at https://choosealicense.com/. All rights reserved is the default copyright stance, and is thus the default here.
license = "${mod_license}"
# A URL to refer people to when problems occur with this mod
#issueTrackerURL="https://change.me.to.your.issue.tracker.example.invalid/" #optional
# A list of mods - how many allowed here is determined by the individual mod loader
[[mods]] #mandatory
# The modid of the mod
modId = "${mod_id}" #mandatory
# The version number of the mod
version = "${mod_version}" #mandatory
# A display name for the mod
displayName = "${mod_name}" #mandatory
# A URL to query for updates for this mod. See the JSON update specification https://docs.neoforge.net/docs/misc/updatechecker/
#updateJSONURL="https://change.me.example.invalid/updates.json" #optional
# A URL for the "homepage" for this mod, displayed in the mod UI
#displayURL="https://change.me.to.your.mods.homepage.example.invalid/" #optional
# A file name (in the root of the mod JAR) containing a logo for display
#logoFile="subborder.png" #optional
# A text field displayed in the mod UI
#credits="" #optional
# A text field displayed in the mod UI
authors = "${mod_authors}" #optional
# The description text for the mod (multi line!) (#mandatory)
description = '''${mod_description}'''
# Declares the mod as server-side only
# This means the mod is not required on the client and will not be loaded if installed on a client
# See https://docs.neoforge.net/docs/gettingstarted/modobject/#server-side-only
serverSideOnly = true
# The [[mixins]] block allows you to declare your mixin config to FML so that it gets loaded.
[[mixins]]
config = "${mod_id}.mixins.json"
# The [[accessTransformers]] block allows you to declare where your AT file is.
# If this block is omitted, a fallback attempt will be made to load an AT from META-INF/accesstransformer.cfg
#[[accessTransformers]]
#file="META-INF/accesstransformer.cfg"
# The coremods config file path is not configurable and is always loaded from META-INF/coremods.json
# A dependency - use the . to indicate dependency for a specific modid. Dependencies are optional.
[[dependencies."${mod_id}"]] #optional
# the modid of the dependency
modId = "neoforge" #mandatory
# The type of the dependency. Can be one of "required", "optional", "incompatible" or "discouraged" (case insensitive).
# 'required' requires the mod to exist, 'optional' does not
# 'incompatible' will prevent the game from loading when the mod exists, and 'discouraged' will show a warning
type = "required" #mandatory
# Optional field describing why the dependency is required or why it is incompatible
# reason="..."
# The version range of the dependency
versionRange = "${neo_version_range}" #mandatory
# An ordering relationship for the dependency.
# BEFORE - This mod is loaded BEFORE the dependency
# AFTER - This mod is loaded AFTER the dependency
ordering = "NONE"
# Side this dependency is applied on - BOTH, CLIENT, or SERVER
side = "SERVER"
# Here's another dependency
[[dependencies."${mod_id}"]]
modId = "minecraft"
type = "required"
# This version range declares a minimum of the current minecraft version up to but not including the next major version
versionRange = "${minecraft_version_range}"
ordering = "NONE"
side = "SERVER"
# Features are specific properties of the game environment, that you may want to declare you require. This example declares
# that your mod requires GL version 3.2 or higher. Other features will be added. They are side aware so declaring this won't
# stop your mod loading on the server for example.
#[features."${mod_id}"]
#openGLVersion="[3.2,)"