PacketClientSensor.java

package shedar.mods.ic2.nuclearcontrol.network.message;

import java.util.HashMap;
import java.util.Map;

import shedar.mods.ic2.nuclearcontrol.IC2NuclearControl;
import shedar.mods.ic2.nuclearcontrol.api.IPanelDataSource;
import shedar.mods.ic2.nuclearcontrol.panel.CardWrapperImpl;
import shedar.mods.ic2.nuclearcontrol.tileentities.TileEntityInfoPanel;
import shedar.mods.ic2.nuclearcontrol.utils.NuclearNetworkHelper;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import io.netty.buffer.ByteBuf;
import cpw.mods.fml.common.network.ByteBufUtils;
import cpw.mods.fml.common.network.simpleimpl.IMessage;
import cpw.mods.fml.common.network.simpleimpl.IMessageHandler;
import cpw.mods.fml.common.network.simpleimpl.MessageContext;

public class PacketClientSensor implements IMessage,
		IMessageHandler<PacketClientSensor, IMessage> {
	private int x;
	private int y;
	private int z;
	private int slot;
	private String className;
	private Map<String, Object> fields;

	public static final int FIELD_DOUBLE = 1;
	public static final int FIELD_INT = 2;
	public static final int FIELD_STRING = 3;
	public static final int FIELD_BOOLEAN = 4;
	public static final int FIELD_TAG = 5;
	public static final int FIELD_NULL = 6;
	public static final int FIELD_LONG = 7;

	public PacketClientSensor() {
	}

	public PacketClientSensor(int x, int y, int z, int slot, String className,
			Map<String, Object> fields) {
		this.x = x;
		this.y = y;
		this.z = z;
		this.slot = slot;
		this.className = className;
		this.fields = fields;
	}

	@Override
	public void fromBytes(ByteBuf buf) {
		x = buf.readInt();
		y = buf.readInt();
		z = buf.readInt();
		slot = buf.readByte();
		className = ByteBufUtils.readUTF8String(buf);
		int fieldCount = buf.readShort();
		fields = new HashMap<String, Object>();
		for (int i = 0; i < fieldCount; i++) {
			String name = ByteBufUtils.readUTF8String(buf);
			byte type = buf.readByte();
			switch (type) {
			case NuclearNetworkHelper.FIELD_INT:
				fields.put(name, buf.readInt());
				break;
			case NuclearNetworkHelper.FIELD_BOOLEAN:
				fields.put(name, buf.readBoolean());
				break;
			case NuclearNetworkHelper.FIELD_LONG:
				fields.put(name, buf.readLong());
				break;
			case NuclearNetworkHelper.FIELD_DOUBLE:
				fields.put(name, buf.readDouble());
				break;
			case NuclearNetworkHelper.FIELD_STRING:
				fields.put(name, ByteBufUtils.readUTF8String(buf));
				break;
			default:
				IC2NuclearControl.logger.warn("Invalid field type: %d", type);
				break;
			}
		}
	}

	@Override
	public void toBytes(ByteBuf buf) {
		buf.writeInt(x);
		buf.writeInt(y);
		buf.writeInt(z);
		buf.writeByte(slot);
		ByteBufUtils.writeUTF8String(buf, className);
		buf.writeShort(fields.size());
		for (Map.Entry<String, Object> entry : fields.entrySet()) {
			ByteBufUtils.writeUTF8String(buf, entry.getKey());
			Object value = entry.getValue();
			if (value instanceof Long) {
				buf.writeByte(FIELD_LONG);
				buf.writeLong((Long) value);
			} else if (value instanceof Double) {
				buf.writeByte(FIELD_DOUBLE);
				buf.writeDouble((Double) value);
			} else if (value instanceof Integer) {
				buf.writeByte(FIELD_INT);
				buf.writeInt((Integer) value);
			} else if (value instanceof String) {
				buf.writeByte(FIELD_STRING);
				ByteBufUtils.writeUTF8String(buf, (String) value);
			} else if (value instanceof Boolean) {
				buf.writeByte(FIELD_BOOLEAN);
				buf.writeBoolean((Boolean) value);
			}
		}
	}

	@Override
	public IMessage onMessage(PacketClientSensor message, MessageContext ctx) {
		TileEntity tileEntity = ctx.getServerHandler().playerEntity.worldObj
				.getTileEntity(message.x, message.y, message.z);
		if (tileEntity instanceof TileEntityInfoPanel) {
			TileEntityInfoPanel panel = (TileEntityInfoPanel) tileEntity;
			ItemStack stack = panel.getStackInSlot(message.slot);
			if (stack == null || !(stack.getItem() instanceof IPanelDataSource)) {
				return null;
			}
			if (!stack.getItem().getClass().getName().equals(message.className)) {
				IC2NuclearControl.logger
						.warn("Class mismatch: '%s'!='%s'", message.className,
								stack.getItem().getClass().getName());
				return null;
			}
			CardWrapperImpl helper = new CardWrapperImpl(stack, message.slot);
			for (Map.Entry<String, Object> entry : message.fields.entrySet()) {
				String name = entry.getKey();
				Object value = entry.getValue();
				if (value instanceof Long) {
					helper.setLong(name, (Long) value);
				} else if (value instanceof Double) {
					helper.setDouble(name, (Double) value);
				} else if (value instanceof Integer) {
					helper.setInt(name, (Integer) value);
				} else if (value instanceof String) {
					helper.setString(name, (String) value);
				} else if (value instanceof Boolean) {
					helper.setBoolean(name, (Boolean) value);
				}

			}
			helper.commit(panel);
		}
		return null;
	}
}