test and fix multiplayer

src/main/java/quimufu/colourful_portals/ColourfulPortalsMod.java

@@ -1,16 +1,12 @@
 package quimufu.colourful_portals;
 
-import net.fabricmc.api.ClientModInitializer;
 import net.fabricmc.api.ModInitializer;
-import net.fabricmc.fabric.api.blockrenderlayer.v1.BlockRenderLayerMap;
-import net.fabricmc.fabric.api.client.render.fluid.v1.FluidRenderHandlerRegistry;
 import net.fabricmc.fabric.api.item.v1.FabricItemSettings;
 import net.fabricmc.fabric.api.itemgroup.v1.FabricItemGroupEntries;
 import net.fabricmc.fabric.api.itemgroup.v1.ItemGroupEvents;
 import net.fabricmc.fabric.api.object.builder.v1.block.FabricBlockSettings;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.enums.Instrument;
-import net.minecraft.client.render.RenderLayer;
 import net.minecraft.entity.EntityType;
 import net.minecraft.item.*;
 import net.minecraft.registry.Registries;
@@ -22,7 +18,6 @@ import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.BlockView;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import quimufu.colourful_portals.client.PortalFluidRenderHandler;
 import quimufu.colourful_portals.config.ColourfulPortalConfig;
 import quimufu.colourful_portals.portal_fluid.PortalFluid;
 import quimufu.colourful_portals.portal_fluid.PortalFluidBlock;
@@ -30,7 +25,7 @@ import quimufu.colourful_portals.portal_fluid.PortalFluidBucketItem;
 
 import java.util.HashSet;
 
-public class ColourfulPortalsMod implements ModInitializer, ClientModInitializer {
+public class ColourfulPortalsMod implements ModInitializer {
 
     public static final String MOD_ID = "colourful_portals";
     public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);
@@ -91,10 +86,4 @@ public class ColourfulPortalsMod implements ModInitializer, ClientModInitializer
         content.add(BLOB_DARK);
     }
 
-    public void onInitializeClient() {
-        BlockRenderLayerMap.INSTANCE.putBlock(PORTAL_BLOCK, RenderLayer.getTranslucent());
-        BlockRenderLayerMap.INSTANCE.putFluid(PORTAL_FLUID, RenderLayer.getTranslucent());
-        FluidRenderHandlerRegistry.INSTANCE.register(PORTAL_FLUID, new PortalFluidRenderHandler());
-    }
-
 }

src/main/java/quimufu/colourful_portals/ColourfulPortalsModClient.java

@@ -0,0 +1,16 @@
+package quimufu.colourful_portals;
+
+import net.fabricmc.api.ClientModInitializer;
+import net.fabricmc.fabric.api.blockrenderlayer.v1.BlockRenderLayerMap;
+import net.fabricmc.fabric.api.client.render.fluid.v1.FluidRenderHandlerRegistry;
+import net.minecraft.client.render.RenderLayer;
+import quimufu.colourful_portals.client.PortalFluidRenderHandler;
+
+public class ColourfulPortalsModClient implements ClientModInitializer {
+    public void onInitializeClient() {
+        BlockRenderLayerMap.INSTANCE.putBlock(ColourfulPortalsMod.PORTAL_BLOCK, RenderLayer.getTranslucent());
+        BlockRenderLayerMap.INSTANCE.putFluid(ColourfulPortalsMod.PORTAL_FLUID, RenderLayer.getTranslucent());
+        FluidRenderHandlerRegistry.INSTANCE.register(ColourfulPortalsMod.PORTAL_FLUID, new PortalFluidRenderHandler());
+    }
+
+}

src/main/java/quimufu/colourful_portals/portal/PortalListComponent.java

@@ -1,6 +1,5 @@
 package quimufu.colourful_portals.portal;
 
-import com.ibm.icu.impl.Pair;
 import dev.onyxstudios.cca.api.v3.component.Component;
 import net.minecraft.nbt.NbtCompound;
 import net.minecraft.nbt.NbtElement;
@@ -10,6 +9,7 @@ import net.minecraft.util.Identifier;
 import net.minecraft.util.math.BlockBox;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.WorldProperties;
+import quimufu.colourful_portals.util.Pair;
 
 import java.util.ArrayList;
 import java.util.HashMap;

src/main/java/quimufu/colourful_portals/portal/PortalManager.java

@@ -1,6 +1,5 @@
 package quimufu.colourful_portals.portal;
 
-import com.ibm.icu.impl.Pair;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
 import net.minecraft.entity.Entity;
@@ -18,6 +17,7 @@ import qouteall.imm_ptl.core.api.PortalAPI;
 import qouteall.imm_ptl.core.portal.Portal;
 import qouteall.q_misc_util.my_util.DQuaternion;
 import quimufu.colourful_portals.config.ColourfulPortalConfig;
+import quimufu.colourful_portals.util.Pair;
 
 import java.util.ArrayList;
 import java.util.List;

src/main/java/quimufu/colourful_portals/util/Pair.java

@@ -0,0 +1,32 @@
+package quimufu.colourful_portals.util;
+
+import org.apache.commons.lang3.builder.EqualsBuilder;
+import org.apache.commons.lang3.builder.HashCodeBuilder;
+
+import java.util.Objects;
+
+public class Pair<A, B> {
+
+    public final A first;
+    public final B second;
+    public Pair(A first, B second) {
+        this.first = first;
+        this.second = second;
+    }
+    public static <A,B> Pair<A,B> of(A first, B second) {
+        return new Pair<>(first,second);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Pair<?, ?> pair = (Pair<?, ?>) o;
+        return Objects.equals(first, pair.first) && Objects.equals(second, pair.second);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(first, second);
+    }
+}

src/main/resources/fabric.mod.json

@@ -19,7 +19,7 @@
       "quimufu.colourful_portals.ColourfulPortalsMod"
     ],
     "client": [
-      "quimufu.colourful_portals.ColourfulPortalsMod"
+      "quimufu.colourful_portals.ColourfulPortalsModClient"
     ],
     "cardinal-components": [
       "quimufu.colourful_portals.Components"