FightSystem/FightSystem_8/src/de/steamwar/fightsystem/utils/FlatteningWrapper8.java

/*
    This file is a part of the SteamWar software.

    Copyright (C) 2021  SteamWar.de-Serverteam

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package de.steamwar.fightsystem.utils;

import com.comphenix.tinyprotocol.Reflection;
import de.steamwar.core.Core;
import de.steamwar.fightsystem.record.REntity;
import org.bukkit.DyeColor;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.block.Block;
import org.bukkit.entity.EntityType;
import org.bukkit.event.block.BlockPhysicsEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;

public class FlatteningWrapper8 implements FlatteningWrapper.IFlatteningWrapper {
    @Override
    public DyeColor getSilver() {
        return DyeColor.SILVER;
    }

    @Override
    public boolean isWater(Block block) {
        Material type = block.getType();
        return type == Material.WATER || type == Material.STATIONARY_WATER;
    }

    @Override
    public boolean removeWater(Block block) {
        if(isWater(block)){
            block.setType(Material.AIR);
            return true;
        }
        return false;
    }

    @Override
    public boolean containsBlockMeta(ItemMeta meta) {
        return false;
    }

    @Override
    public boolean hasAttributeModifier(ItemStack stack) {
        return false;
    }

    @Override
    public ItemStack onBreak(Block block) {
        return block.getDrops().stream().findAny().orElse(new ItemStack(Material.AIR));
    }

    @Override
    public boolean doRecord(BlockPhysicsEvent e) {
        return e.getChangedType() != e.getBlock().getType();
    }

    @Override
    public void forceLoadChunk(World world, int cX, int cZ) {
        // not possible in 1.8
    }

    @Override
    public boolean checkPistonMoving(Block block) {
        return block.getType() == Material.PISTON_MOVING_PIECE;
    }

    private static final Class<?> dataWatcher = Reflection.getClass("{nms}.DataWatcher");
    private static final Reflection.FieldAccessor<?> namedSpawnDataWatcher = Reflection.getField(REntity.namedSpawnPacket, dataWatcher, 0);
    private static final Class<?> entity = Reflection.getClass("{nms}.Entity");
    private static final Reflection.ConstructorInvoker dataWatcherConstructor = Reflection.getConstructor(dataWatcher, entity);
    @Override
    public void setNamedSpawnPacketDataWatcher(Object packet) {
        namedSpawnDataWatcher.set(packet, dataWatcherConstructor.invoke((Object) null));
    }

    private static final Reflection.FieldAccessor<Integer> spawnType = Reflection.getField(REntity.spawnPacket, int.class, Core.getVersion() > 8 ? 6 : 9);
    @Override
    public void setSpawnPacketType(Object packet, EntityType type) {
        switch(type) {
            case PRIMED_TNT:
                spawnType.set(packet, 50);
                break;
            case ARROW:
                spawnType.set(packet, 60);
                break;
            case FIREBALL:
                spawnType.set(packet, 63);
                break;
        }
    }
}