World border utils

gradle.properties

@@ -12,5 +12,5 @@ fabric_kotlin_version=1.10.20+kotlin.1.9.24
 kache_version=1.0.5
 
 # Mod Properties
-mod_version=2.10.1
+mod_version=2.11.0
 maven_group=dev.andante

src/main/java/dev/andante/audience/Audience.java

@@ -9,6 +9,7 @@
 import net.minecraft.network.packet.s2c.play.BundleS2CPacket;
 import net.minecraft.network.packet.s2c.play.ClearTitleS2CPacket;
 import net.minecraft.network.packet.s2c.play.PlaySoundS2CPacket;
+import net.minecraft.network.packet.s2c.play.WorldBorderInitializeS2CPacket;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.PlayerManager;
 import net.minecraft.server.network.ServerPlayNetworkHandler;
@@ -18,10 +19,14 @@
 import net.minecraft.util.Pair;
 import net.minecraft.util.math.Vec2f;
 import net.minecraft.util.math.Vec3d;
+import net.minecraft.world.border.WorldBorder;
 
 import java.util.function.Consumer;
 import java.util.function.Function;
 
+import static net.minecraft.util.math.MathHelper.clamp;
+import static net.minecraft.util.math.MathHelper.floor;
+
 @SuppressWarnings("unused")
 public interface Audience {
     /**
@@ -192,6 +197,46 @@ default void respawn() {
         });
     }
 
+    /**
+     * Sets all audience player's world borders to make a red tint on their vignette.
+     */
+    default void setTintPercentage(float percentage) {
+        float clampedPercentage = clamp(percentage, 0.0f, 1.0f);
+        packet(player -> {
+            WorldBorder border = new WorldBorder();
+
+            border.setCenter(player.getX(), player.getZ());
+
+            double baseSize = 10_000_000;
+            border.setSize(baseSize);
+
+            double warningDistance = clampedPercentage * (baseSize * 10);
+            border.setWarningBlocks(floor(warningDistance));
+
+            border.setWarningTime(0);
+
+            return new WorldBorderInitializeS2CPacket(border);
+        });
+    }
+
+    /**
+     * Sets all audience players' world borders.
+     */
+    default void setWorldBorder(WorldBorder border) {
+        packet(new WorldBorderInitializeS2CPacket(border));
+    }
+
+    /**
+     * Resets all audience players' world borders to that of their world.
+     */
+    default void resetWorldBorder() {
+        packet(player -> {
+            ServerWorld world = player.getServerWorld();
+            WorldBorder border = world.getWorldBorder();
+            return new WorldBorderInitializeS2CPacket(border);
+        });
+    }
+
     /**
      * Sends the given packet to all audience players.
      */

src/test/kotlin/dev/andante/audience/test/AudienceTest.kt

@@ -2,15 +2,18 @@ package dev.andante.audience.test
 
 import com.google.gson.JsonParser
 import com.mojang.serialization.JsonOps
+import dev.andante.audience.Audience
 import dev.andante.audience.player.PlayerSet
 import dev.andante.audience.player.StandalonePlayerReference
 import dev.andante.audience.resource.ResourcePack
 import dev.andante.audience.resource.ResourcePackServer
 import net.fabricmc.api.ModInitializer
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
 import org.slf4j.LoggerFactory
 import java.nio.file.Path
 import kotlin.io.path.readBytes
+import kotlin.math.sin
 import kotlin.time.measureTimedValue
 
 object AudienceTest : ModInitializer {
@@ -19,7 +22,16 @@ object AudienceTest : ModInitializer {
     private val logger = LoggerFactory.getLogger("Audience Test")
 
     override fun onInitialize() {
-        LoggerFactory.getLogger("Audience Test").info("Initializing")
+        logger.info("Initializing")
+
+        ServerTickEvents.END_SERVER_TICK.register { server ->
+            val playerManager = server.playerManager
+            playerManager.playerList.forEach { player ->
+                val audience = player as Audience
+                val value = 1.0f - sin(player.age / 10.0f)
+                audience.setTintPercentage(value)
+            }
+        }
 
         if (TEST_RESOURCE_PACK) {
             val byteArray = try {