001/* 002 * Trident - A Multithreaded Server Alternative 003 * Copyright 2014 The TridentSDK Team 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package net.tridentsdk.server.data; 019 020import io.netty.buffer.ByteBuf; 021import net.tridentsdk.base.Position; 022 023/** 024 * Represents a writable form of a {@link Position} 025 * 026 * @author The TridentSDK Team 027 */ 028public class PositionWritable implements Writable { 029 private Position loc; 030 031 /** 032 * Creates a new position based from an existing location 033 * 034 * @param loc the location to wrap with writable format 035 */ 036 public PositionWritable(Position loc) { 037 this.loc = loc; 038 } 039 040 /** 041 * Gets the wrapped, original location 042 * 043 * @return the location passed in by constructor or by {@link #setLoc(Position)} 044 */ 045 public Position location() { 046 return this.loc; 047 } 048 049 /** 050 * Sets the wrapped position 051 * 052 * <p>This does not change the value of already written locations. This is purely for purposes of performance, 053 * but removes concurrency.</p> 054 * 055 * @param loc the location to wrap with writable format 056 */ 057 public void setLoc(Position loc) { 058 this.loc = loc; 059 } 060 061 @Override 062 public void write(ByteBuf buf) { 063 buf.writeLong((long) ((int) this.loc.x() & 0x3FFFFFF) << 38 | 064 (long) ((int) this.loc.y() & 0xFFF) << 26 | 065 (long) ((int) this.loc.z() & 0x3FFFFFF)); 066 } 067}