Examples with ExplodePacket cn.nukkit.network.protocol.ExplodePacket used on opensource projects

Example 1 with ExplodePacket

use of cn.nukkit.network.protocol.ExplodePacket in project Nukkit by Nukkit.

the class Explosion method explodeB.

public boolean explodeB() {
    HashMap<BlockVector3, Boolean> updateBlocks = new HashMap<>();
    List<Vector3> send = new ArrayList<>();
    Vector3 source = (new Vector3(this.source.x, this.source.y, this.source.z)).floor();
    double yield = (1d / this.size) * 100d;
    if (this.what instanceof Entity) {
        EntityExplodeEvent ev = new EntityExplodeEvent((Entity) this.what, this.source, this.affectedBlocks, yield);
        this.level.getServer().getPluginManager().callEvent(ev);
        if (ev.isCancelled()) {
            return false;
        } else {
            yield = ev.getYield();
            this.affectedBlocks = ev.getBlockList();
        }
    }
    double explosionSize = this.size * 2d;
    double minX = NukkitMath.floorDouble(this.source.x - explosionSize - 1);
    double maxX = NukkitMath.ceilDouble(this.source.x + explosionSize + 1);
    double minY = NukkitMath.floorDouble(this.source.y - explosionSize - 1);
    double maxY = NukkitMath.ceilDouble(this.source.y + explosionSize + 1);
    double minZ = NukkitMath.floorDouble(this.source.z - explosionSize - 1);
    double maxZ = NukkitMath.ceilDouble(this.source.z + explosionSize + 1);
    AxisAlignedBB explosionBB = new SimpleAxisAlignedBB(minX, minY, minZ, maxX, maxY, maxZ);
    Entity[] list = this.level.getNearbyEntities(explosionBB, this.what instanceof Entity ? (Entity) this.what : null);
    for (Entity entity : list) {
        double distance = entity.distance(this.source) / explosionSize;
        if (distance <= 1) {
            Vector3 motion = entity.subtract(this.source).normalize();
            int exposure = 1;
            double impact = (1 - distance) * exposure;
            int damage = (int) (((impact * impact + impact) / 2) * 8 * explosionSize + 1);
            if (this.what instanceof Entity) {
                entity.attack(new EntityDamageByEntityEvent((Entity) this.what, entity, DamageCause.ENTITY_EXPLOSION, damage));
            } else if (this.what instanceof Block) {
                entity.attack(new EntityDamageByBlockEvent((Block) this.what, entity, DamageCause.BLOCK_EXPLOSION, damage));
            } else {
                entity.attack(new EntityDamageEvent(entity, DamageCause.BLOCK_EXPLOSION, damage));
            }
            entity.setMotion(motion.multiply(impact));
        }
    }
    ItemBlock air = new ItemBlock(new BlockAir());
    // Iterator iter = this.affectedBlocks.entrySet().iterator();
    for (Block block : this.affectedBlocks) {
        // Block block = (Block) ((HashMap.Entry) iter.next()).getValue();
        if (block.getId() == Block.TNT) {
            ((BlockTNT) block).prime(new NukkitRandom().nextRange(10, 30));
        } else if (Math.random() * 100 < yield) {
            for (Item drop : block.getDrops(air)) {
                this.level.dropItem(block.add(0.5, 0.5, 0.5), drop);
            }
        }
        this.level.setBlockIdAt((int) block.x, (int) block.y, (int) block.z, 0);
        Vector3 pos = new Vector3(block.x, block.y, block.z);
        for (BlockFace side : BlockFace.values()) {
            Vector3 sideBlock = pos.getSide(side);
            BlockVector3 index = Level.blockHash((int) sideBlock.x, (int) sideBlock.y, (int) sideBlock.z);
            if (!this.affectedBlocks.contains(sideBlock) && !updateBlocks.containsKey(index)) {
                BlockUpdateEvent ev = new BlockUpdateEvent(this.level.getBlock(sideBlock));
                this.level.getServer().getPluginManager().callEvent(ev);
                if (!ev.isCancelled()) {
                    ev.getBlock().onUpdate(Level.BLOCK_UPDATE_NORMAL);
                }
                updateBlocks.put(index, true);
            }
        }
        send.add(new Vector3(block.x - source.x, block.y - source.y, block.z - source.z));
    }
    ExplodePacket pk = new ExplodePacket();
    pk.x = (float) this.source.x;
    pk.y = (float) this.source.y;
    pk.z = (float) this.source.z;
    pk.radius = (float) this.size;
    pk.records = send.stream().toArray(Vector3[]::new);
    this.level.addChunkPacket((int) source.x >> 4, (int) source.z >> 4, pk);
    this.level.addParticle(new HugeExplodeSeedParticle(this.source));
    this.level.addSound(new Vector3(this.source.x, this.source.y, this.source.z), Sound.RANDOM_EXPLODE);
    return true;
}