com.flowpowered.engine.util.FlowByteBufUtils.java Source code

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Here is the source code for com.flowpowered.engine.util.FlowByteBufUtils.java

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/*
 * This file is part of Flow Engine, licensed under the MIT License (MIT).
 *
 * Copyright (c) 2013 Spout LLC <http://www.spout.org/>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.flowpowered.engine.util;

import java.io.IOException;
import java.util.UUID;

import com.flowpowered.api.geo.discrete.Point;
import com.flowpowered.api.geo.discrete.Transform;
import com.flowpowered.api.geo.reference.WorldReference;
import com.flowpowered.math.imaginary.Quaternionf;
import com.flowpowered.math.vector.Vector3f;
import com.flowpowered.networking.util.ByteBufUtils;
import io.netty.buffer.ByteBuf;

public class FlowByteBufUtils {
    public static Transform readTransform(ByteBuf buffer) {
        Point position = readPoint(buffer);
        Quaternionf rotation = readQuaternion(buffer);
        Vector3f scale = readVector3(buffer);
        return new Transform(position, rotation, scale);
    }

    public static void writeTransform(ByteBuf buffer, Transform transform) {
        writePoint(buffer, transform.getPosition());
        writeQuaternion(buffer, transform.getRotation());
        writeVector3(buffer, transform.getScale());
    }

    public static Vector3f readVector3(ByteBuf buffer) {
        final float x = buffer.readFloat();
        final float y = buffer.readFloat();
        final float z = buffer.readFloat();
        return new Vector3f(x, y, z);
    }

    public static void writeVector3(ByteBuf buffer, Vector3f vec) {
        buffer.writeFloat(vec.getX());
        buffer.writeFloat(vec.getY());
        buffer.writeFloat(vec.getZ());
    }

    public static UUID readUUID(ByteBuf buffer) {
        final long lsb = buffer.readLong();
        final long msb = buffer.readLong();
        return new UUID(msb, lsb);
    }

    public static void writeUUID(ByteBuf buffer, UUID uuid) {
        buffer.writeLong(uuid.getLeastSignificantBits());
        buffer.writeLong(uuid.getMostSignificantBits());
    }

    public static Point readPoint(ByteBuf buffer) {
        WorldReference world;
        try {
            world = new WorldReference(ByteBufUtils.readUTF8(buffer));
        } catch (IOException ex) {
            throw new RuntimeException(ex);
        }
        final float x = buffer.readFloat();
        final float y = buffer.readFloat();
        final float z = buffer.readFloat();
        return new Point(world, x, y, z);
    }

    public static void writePoint(ByteBuf buffer, Point vec) {
        try {
            ByteBufUtils.writeUTF8(buffer, vec.getWorld().getName());
        } catch (IOException ex) {
            throw new RuntimeException(ex);
        }
        buffer.writeFloat(vec.getBlockX());
        buffer.writeFloat(vec.getBlockY());
        buffer.writeFloat(vec.getBlockZ());
    }

    public static Quaternionf readQuaternion(ByteBuf buffer) {
        final float x = buffer.readFloat();
        final float y = buffer.readFloat();
        final float z = buffer.readFloat();
        final float w = buffer.readFloat();
        return new Quaternionf(x, y, z, w);
    }

    public static void writeQuaternion(ByteBuf buffer, Quaternionf quaternion) {
        buffer.writeFloat(quaternion.getX());
        buffer.writeFloat(quaternion.getY());
        buffer.writeFloat(quaternion.getZ());
        buffer.writeFloat(quaternion.getW());
    }
}