Implemented totem charging.

src/main/java/dev/micle/totemofreviving/network/ChargeTotemPacket.java

@@ -0,0 +1,54 @@
+package dev.micle.totemofreviving.network;
+
+import dev.micle.totemofreviving.item.StrawTotemItem;
+import net.minecraft.entity.player.ServerPlayerEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.network.PacketBuffer;
+import net.minecraft.util.Hand;
+import net.minecraftforge.fml.network.NetworkEvent;
+
+import java.util.function.Supplier;
+
+import static dev.micle.totemofreviving.item.StrawTotemItem.TAG_CHARGE;
+
+public class ChargeTotemPacket {
+	private final Hand hand;
+	
+	public ChargeTotemPacket(final Hand hand) {
+		this.hand = hand;
+	}
+	
+	public static void encode(final ChargeTotemPacket packet, final PacketBuffer buffer) {
+		Network.writeVersionInfo(buffer);
+		buffer.writeEnum(packet.hand);
+	}
+	
+	public static ChargeTotemPacket decode(final PacketBuffer buffer) {
+		Network.checkVersion(buffer);
+		return new ChargeTotemPacket(buffer.readEnum(Hand.class));
+	}
+	
+	public static void handle(final ChargeTotemPacket packet, final Supplier<NetworkEvent.Context> contextSupplier) {
+		final NetworkEvent.Context context = contextSupplier.get();
+		context.enqueueWork(() -> {
+			ServerPlayerEntity sender = context.getSender();
+			if (sender == null) { return; }
+			ItemStack totem = sender.getMainHandItem();
+			ItemStack charge = sender.getOffhandItem();
+			if (!packet.hand.equals(Hand.MAIN_HAND)) {
+				totem = sender.getOffhandItem();
+				charge = sender.getMainHandItem();
+			}
+			
+			if (totem.getItem() instanceof StrawTotemItem) {
+				if (totem.getOrCreateTag().getInt(TAG_CHARGE) >= StrawTotemItem.getMaxCharge()) {
+					return;
+				}
+			}
+			
+			totem.getOrCreateTag().putInt(TAG_CHARGE, totem.getOrCreateTag().getInt(TAG_CHARGE) + 1);
+			charge.setCount(charge.getCount() - 1);
+		});
+		context.setPacketHandled(true);
+	}
+}

src/main/java/dev/micle/totemofreviving/network/Network.java

@@ -29,6 +29,11 @@ public class Network {
 				.decoder(ChangeTargetPacket::decode)
 				.consumer(ChangeTargetPacket::handle)
 				.add();
+		channel.messageBuilder(ChargeTotemPacket.class, id++)
+				.encoder(ChargeTotemPacket::encode)
+				.decoder(ChargeTotemPacket::decode)
+				.consumer(ChargeTotemPacket::handle)
+				.add();
 	}
 	
 	public static void writeVersionInfo(PacketBuffer buffer) {