83 lines
2.5 KiB
Java
83 lines
2.5 KiB
Java
package StevenDimDoors.mod_pocketDim.helpers;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.util.Collection;
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import java.util.Comparator;
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import java.util.HashSet;
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import StevenDimDoors.mod_pocketDim.core.DimLink;
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import StevenDimDoors.mod_pocketDim.core.IDimRegistrationCallback;
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import StevenDimDoors.mod_pocketDim.core.LinkTypes;
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import StevenDimDoors.mod_pocketDim.core.NewDimData;
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import StevenDimDoors.mod_pocketDim.util.Point4D;
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public class Compactor
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{
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private static class DimComparator implements Comparator<NewDimData>
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{
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@Override
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public int compare(NewDimData a, NewDimData b)
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{
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return a.id() - b.id();
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}
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}
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public static void write(Collection<? extends NewDimData> values, DataOutputStream output) throws IOException
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{
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// SenseiKiwi: Just encode the data straight up for now. I'll implement fancier compression later.
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output.writeInt(values.size());
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for (NewDimData dimension : values)
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{
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output.writeInt(dimension.id());
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output.writeInt(dimension.root().id());
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output.writeInt(dimension.linkCount());
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for (DimLink link : dimension.links())
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{
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Point4D.write(link.source(), output);
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}
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}
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// Note to self: the root ID can be "compressed" by grouping
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// dimensions by their root ID and then only sending it once
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/*
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// To compress the dimension IDs, we'll sort them by ID
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// and write the _difference_ between their ID numbers.
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NewDimData[] dimensions = new NewDimData[values.size()];
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dimensions = values.toArray(dimensions);
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Arrays.sort(dimensions, new DimComparator());
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*/
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}
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public static void readDimensions(DataInputStream input, IDimRegistrationCallback callback) throws IOException
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{
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// Read in the dimensions one by one. Make sure we register root dimensions before
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// attempting to register the dimensions under them.
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HashSet<Integer> rootIDs = new HashSet<Integer>();
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int dimCount = input.readInt();
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for (int k = 0; k < dimCount; k++)
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{
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int id = input.readInt();
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int rootID = input.readInt();
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if (rootIDs.add(rootID))
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{
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callback.registerDimension(rootID, rootID);
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}
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// Don't check if (id != rootID) - we want to retrieve the reference anyway
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NewDimData dimension = callback.registerDimension(id, rootID);
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int linkCount = input.readInt();
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for (int h = 0; h < linkCount; h++)
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{
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Point4D source = Point4D.read(input);
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dimension.createLink(source.getX(), source.getY(), source.getZ(), LinkTypes.CLIENT_SIDE);
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}
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}
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}
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}
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