com.specialeffect.messages.MovePlayerMessage.java Source code

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Here is the source code for com.specialeffect.messages.MovePlayerMessage.java

Source

/**
 * Copyright (C) 2016 Kirsty McNaught, SpecialEffect
 * www.specialeffect.org.uk
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 */

package com.specialeffect.messages;

import io.netty.buffer.ByteBuf;
import net.minecraft.entity.Entity;
import net.minecraft.entity.MoverType;
import net.minecraft.entity.item.EntityMinecart;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.IThreadListener;
import net.minecraft.util.math.Vec3d;
import net.minecraft.world.WorldServer;
import net.minecraftforge.fml.common.network.simpleimpl.IMessage;
import net.minecraftforge.fml.common.network.simpleimpl.IMessageHandler;
import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;

public class MovePlayerMessage implements IMessage {

    private float moveAmount;
    private float moveAngle;

    public MovePlayerMessage() {
    }

    public MovePlayerMessage(float moveAmount, float moveAngle) {
        this.moveAmount = moveAmount;
        this.moveAngle = moveAngle;
    }

    @Override
    public void fromBytes(ByteBuf buf) {
        moveAmount = buf.readFloat();
        moveAngle = buf.readFloat();
    }

    @Override
    public void toBytes(ByteBuf buf) {
        buf.writeFloat(moveAmount);
        buf.writeFloat(moveAngle);
    }

    public static class Handler implements IMessageHandler<MovePlayerMessage, IMessage> {
        @Override
        public IMessage onMessage(final MovePlayerMessage message, final MessageContext ctx) {
            IThreadListener mainThread = (WorldServer) ctx.getServerHandler().playerEntity.world; // or Minecraft.getMinecraft() on the client
            mainThread.addScheduledTask(new Runnable() {
                @Override
                public void run() {
                    EntityPlayer player = ctx.getServerHandler().playerEntity;
                    if (player.isRiding()) {
                        player.moveForward = 1.0f;
                        Entity riddenEntity = player.getRidingEntity();
                        if (null != riddenEntity) {
                            // Minecarts can only be moved forward/backward
                            if (riddenEntity instanceof EntityMinecart) {
                                EntityMinecart minecart = (EntityMinecart) riddenEntity;
                                Vec3d lookVec = player.getLookVec();
                                int lookYaw = (int) player.rotationYaw;
                                int yawDiff = ((int) riddenEntity.rotationYaw - lookYaw) % 360;
                                if (yawDiff < 90 || yawDiff > 270) {
                                    message.moveAngle = 0.0f;
                                } else {
                                    message.moveAngle = (float) Math.PI;
                                }
                                // slower for minecarts
                                message.moveAmount /= 2.0f;
                            }

                            double yaw = Math.toRadians(riddenEntity.rotationYaw);

                            float xDiff = -(float) (message.moveAmount * Math.sin(yaw + message.moveAngle));
                            float yDiff = (float) (message.moveAmount * Math.cos(yaw + message.moveAngle));

                            // TODO: check if type is correct.
                            riddenEntity.move(MoverType.SELF, xDiff, 0, yDiff);
                        }
                    }
                }
            });
            return null; // no response in this case
        }
    }
}