82 lines
2.8 KiB
Java
82 lines
2.8 KiB
Java
/*
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This file is part of the OdinMS Maple Story Server
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Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc>
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Matthias Butz <matze@odinms.de>
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Jan Christian Meyer <vimes@odinms.de>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation version 3 as published by
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the Free Software Foundation. You may not use, modify or distribute
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this program under any other version of the GNU Affero General Public
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License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package server.maps;
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import io.netty.buffer.Unpooled;
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import net.packet.ByteBufInPacket;
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import net.packet.ByteBufOutPacket;
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import net.packet.InPacket;
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import net.packet.OutPacket;
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import net.packet.Packet;
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import java.util.Arrays;
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public abstract class AbstractAnimatedMapObject extends AbstractMapObject implements AnimatedMapObject {
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public static final int IDLE_MOVEMENT_PACKET_LENGTH = 15;
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private static final Packet IDLE_MOVEMENT_PACKET = createIdleMovementPacket();
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private int stance;
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@Override
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public int getStance() {
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return stance;
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}
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@Override
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public void setStance(int stance) {
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this.stance = stance;
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}
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@Override
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public boolean isFacingLeft() {
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return Math.abs(stance) % 2 == 1;
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}
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public InPacket getIdleMovement() {
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final byte[] idleMovementBytes = IDLE_MOVEMENT_PACKET.getBytes();
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byte[] movementData = Arrays.copyOf(idleMovementBytes, idleMovementBytes.length);
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//seems wasteful to create a whole packet writer when only a few values are changed
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int x = getPosition().x;
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int y = getPosition().y;
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movementData[2] = (byte) (x & 0xFF); //x
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movementData[3] = (byte) (x >> 8 & 0xFF);
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movementData[4] = (byte) (y & 0xFF); //y
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movementData[5] = (byte) (y >> 8 & 0xFF);
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movementData[12] = (byte) (getStance() & 0xFF);
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return new ByteBufInPacket(Unpooled.wrappedBuffer(movementData));
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}
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private static Packet createIdleMovementPacket() {
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OutPacket p = new ByteBufOutPacket();
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p.writeByte(1); //movement command count
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p.writeByte(0);
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p.writeShort(-1); //x
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p.writeShort(-1); //y
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p.writeShort(0); //xwobble
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p.writeShort(0); //ywobble
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p.writeShort(0); //fh
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p.writeByte(-1); //stance
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p.writeShort(0); //duration
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return p;
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}
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}
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