1431 lines
47 KiB
Rust
1431 lines
47 KiB
Rust
// Copyright 2015 Matthew Collins
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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pub use steven_blocks as block;
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use crate::chunk_builder;
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use crate::ecs;
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use crate::entity::block_entity;
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use crate::format;
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use crate::protocol;
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use crate::render;
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use crate::shared::{Direction, Position};
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use crate::types::hash::FNVHash;
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use crate::types::{bit, nibble};
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use cgmath::prelude::*;
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use collision;
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use flate2::read::ZlibDecoder;
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use std::collections::HashMap;
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use std::collections::VecDeque;
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use std::hash::BuildHasherDefault;
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use std::io::Read;
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pub mod biome;
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mod storage;
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#[derive(Default)]
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pub struct World {
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chunks: HashMap<CPos, Chunk, BuildHasherDefault<FNVHash>>,
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render_list: Vec<(i32, i32, i32)>,
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light_updates: VecDeque<LightUpdate>,
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block_entity_actions: VecDeque<BlockEntityAction>,
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protocol_version: i32,
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pub modded_block_ids: HashMap<usize, String>,
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}
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#[derive(Clone, Debug)]
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pub enum BlockEntityAction {
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Create(Position),
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Remove(Position),
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UpdateSignText(
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Position,
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format::Component,
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format::Component,
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format::Component,
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format::Component,
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),
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}
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#[derive(Clone, Copy, PartialEq, Eq)]
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enum LightType {
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Block,
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Sky,
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}
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impl LightType {
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fn get_light(self, world: &World, pos: Position) -> u8 {
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match self {
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LightType::Block => world.get_block_light(pos),
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LightType::Sky => world.get_sky_light(pos),
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}
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}
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fn set_light(self, world: &mut World, pos: Position, light: u8) {
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match self {
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LightType::Block => world.set_block_light(pos, light),
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LightType::Sky => world.set_sky_light(pos, light),
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}
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}
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}
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struct LightUpdate {
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ty: LightType,
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pos: Position,
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}
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impl World {
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pub fn new(protocol_version: i32) -> World {
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World {
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protocol_version,
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..Default::default()
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}
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}
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pub fn is_chunk_loaded(&self, x: i32, z: i32) -> bool {
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self.chunks.contains_key(&CPos(x, z))
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}
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pub fn set_block(&mut self, pos: Position, b: block::Block) {
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if self.set_block_raw(pos, b) {
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self.update_block(pos);
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}
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}
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fn set_block_raw(&mut self, pos: Position, b: block::Block) -> bool {
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let cpos = CPos(pos.x >> 4, pos.z >> 4);
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let chunk = self.chunks.entry(cpos).or_insert_with(|| Chunk::new(cpos));
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if chunk.set_block(pos.x & 0xF, pos.y, pos.z & 0xF, b) {
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if chunk.block_entities.contains_key(&pos) {
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self.block_entity_actions
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.push_back(BlockEntityAction::Remove(pos));
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}
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if block_entity::BlockEntityType::get_block_entity(b).is_some() {
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self.block_entity_actions
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.push_back(BlockEntityAction::Create(pos));
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}
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true
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} else {
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false
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}
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}
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pub fn update_block(&mut self, pos: Position) {
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for yy in -1..2 {
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for zz in -1..2 {
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for xx in -1..2 {
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let bp = pos + (xx, yy, zz);
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let current = self.get_block(bp);
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let new = current.update_state(self, bp);
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if current != new {
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self.set_block_raw(bp, new);
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}
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self.set_dirty(bp.x >> 4, bp.y >> 4, bp.z >> 4);
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self.update_light(bp, LightType::Block);
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self.update_light(bp, LightType::Sky);
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}
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}
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}
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}
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fn update_range(&mut self, x1: i32, y1: i32, z1: i32, x2: i32, y2: i32, z2: i32) {
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for by in y1..y2 {
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for bz in z1..z2 {
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for bx in x1..x2 {
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let bp = Position::new(bx, by, bz);
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let current = self.get_block(bp);
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let new = current.update_state(self, bp);
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let sky_light = self.get_sky_light(bp);
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let block_light = self.get_block_light(bp);
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if current != new {
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self.set_block_raw(bp, new);
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// Restore old lighting
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self.set_sky_light(bp, sky_light);
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self.set_block_light(bp, block_light);
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}
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}
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}
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}
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}
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pub fn get_block(&self, pos: Position) -> block::Block {
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match self.chunks.get(&CPos(pos.x >> 4, pos.z >> 4)) {
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Some(chunk) => chunk.get_block(pos.x & 0xF, pos.y, pos.z & 0xF),
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None => block::Missing {},
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}
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}
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fn set_block_light(&mut self, pos: Position, light: u8) {
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let cpos = CPos(pos.x >> 4, pos.z >> 4);
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let chunk = self.chunks.entry(cpos).or_insert_with(|| Chunk::new(cpos));
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chunk.set_block_light(pos.x & 0xF, pos.y, pos.z & 0xF, light);
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}
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pub fn get_block_light(&self, pos: Position) -> u8 {
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match self.chunks.get(&CPos(pos.x >> 4, pos.z >> 4)) {
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Some(chunk) => chunk.get_block_light(pos.x & 0xF, pos.y, pos.z & 0xF),
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None => 0,
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}
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}
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fn set_sky_light(&mut self, pos: Position, light: u8) {
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let cpos = CPos(pos.x >> 4, pos.z >> 4);
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let chunk = self.chunks.entry(cpos).or_insert_with(|| Chunk::new(cpos));
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chunk.set_sky_light(pos.x & 0xF, pos.y, pos.z & 0xF, light);
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}
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pub fn get_sky_light(&self, pos: Position) -> u8 {
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match self.chunks.get(&CPos(pos.x >> 4, pos.z >> 4)) {
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Some(chunk) => chunk.get_sky_light(pos.x & 0xF, pos.y, pos.z & 0xF),
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None => 15,
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}
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}
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fn update_light(&mut self, pos: Position, ty: LightType) {
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self.light_updates.push_back(LightUpdate { ty, pos });
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}
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pub fn add_block_entity_action(&mut self, action: BlockEntityAction) {
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self.block_entity_actions.push_back(action);
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}
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pub fn tick(&mut self, m: &mut ecs::Manager) {
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use std::time::Instant;
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let start = Instant::now();
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let mut updates_performed = 0;
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while !self.light_updates.is_empty() {
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updates_performed += 1;
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self.do_light_update();
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if updates_performed & 0xFFF == 0 {
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if start.elapsed().subsec_nanos() >= 5000000 {
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// 5 ms for light updates
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break;
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}
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}
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}
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let sign_info: ecs::Key<block_entity::sign::SignInfo> = m.get_key();
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while let Some(action) = self.block_entity_actions.pop_front() {
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match action {
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BlockEntityAction::Remove(pos) => {
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if let Some(chunk) = self.chunks.get_mut(&CPos(pos.x >> 4, pos.z >> 4)) {
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if let Some(entity) = chunk.block_entities.remove(&pos) {
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m.remove_entity(entity);
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}
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}
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}
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BlockEntityAction::Create(pos) => {
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if let Some(chunk) = self.chunks.get_mut(&CPos(pos.x >> 4, pos.z >> 4)) {
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// Remove existing entity
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if let Some(entity) = chunk.block_entities.remove(&pos) {
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m.remove_entity(entity);
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}
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let block = chunk.get_block(pos.x & 0xF, pos.y, pos.z & 0xF);
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if let Some(entity_type) =
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block_entity::BlockEntityType::get_block_entity(block)
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{
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let entity = entity_type.create_entity(m, pos);
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chunk.block_entities.insert(pos, entity);
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}
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}
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}
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BlockEntityAction::UpdateSignText(pos, line1, line2, line3, line4) => {
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if let Some(chunk) = self.chunks.get(&CPos(pos.x >> 4, pos.z >> 4)) {
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if let Some(entity) = chunk.block_entities.get(&pos) {
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if let Some(sign) = m.get_component_mut(*entity, sign_info) {
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sign.lines = [line1, line2, line3, line4];
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sign.dirty = true;
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}
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}
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}
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}
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}
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}
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}
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fn do_light_update(&mut self) {
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use std::cmp;
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if let Some(update) = self.light_updates.pop_front() {
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if update.pos.y < 0
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|| update.pos.y > 255
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|| !self.is_chunk_loaded(update.pos.x >> 4, update.pos.z >> 4)
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{
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return;
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}
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let block = self.get_block(update.pos).get_material();
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// Find the brightest source of light nearby
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let mut best = update.ty.get_light(self, update.pos);
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let old = best;
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for dir in Direction::all() {
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let light = update.ty.get_light(self, update.pos.shift(dir));
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if light > best {
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best = light;
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}
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}
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best = best.saturating_sub(cmp::max(1, block.absorbed_light));
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// If the light from the block itself is brighter than the light passing through
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// it use that.
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if update.ty == LightType::Block && block.emitted_light != 0 {
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best = cmp::max(best, block.emitted_light);
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}
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// Sky light doesn't decrease when going down at full brightness
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if update.ty == LightType::Sky
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&& block.absorbed_light == 0
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&& update.ty.get_light(self, update.pos.shift(Direction::Up)) == 15
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{
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best = 15;
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}
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// Nothing to do, we are already at the right value
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if best == old {
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return;
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}
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// Use our new light value
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update.ty.set_light(self, update.pos, best);
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// Flag surrounding chunks as dirty
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for yy in -1..2 {
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for zz in -1..2 {
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for xx in -1..2 {
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let bp = update.pos + (xx, yy, zz);
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self.set_dirty(bp.x >> 4, bp.y >> 4, bp.z >> 4);
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}
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}
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}
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// Update surrounding blocks
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for dir in Direction::all() {
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self.update_light(update.pos.shift(dir), update.ty);
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}
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}
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}
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pub fn copy_cloud_heightmap(&mut self, data: &mut [u8]) -> bool {
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let mut dirty = false;
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for (_, c) in &mut self.chunks {
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if c.heightmap_dirty {
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dirty = true;
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c.heightmap_dirty = false;
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for xx in 0..16 {
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for zz in 0..16 {
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data[(((c.position.0 << 4) as usize + xx) & 0x1FF)
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+ ((((c.position.1 << 4) as usize + zz) & 0x1FF) << 9)] =
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c.heightmap[(zz << 4) | xx];
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}
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}
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}
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}
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dirty
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}
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pub fn compute_render_list(&mut self, renderer: &mut render::Renderer) {
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self.render_list.clear();
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let mut valid_dirs = [false; 6];
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for dir in Direction::all() {
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let (ox, oy, oz) = dir.get_offset();
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let dir_vec = cgmath::Vector3::new(ox as f32, oy as f32, oz as f32);
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valid_dirs[dir.index()] = renderer.view_vector.dot(dir_vec) > -0.9;
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}
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let start = (
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((renderer.camera.pos.x as i32) >> 4),
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((renderer.camera.pos.y as i32) >> 4),
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((renderer.camera.pos.z as i32) >> 4),
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);
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let mut process_queue = VecDeque::with_capacity(self.chunks.len() * 16);
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process_queue.push_front((Direction::Invalid, start));
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while let Some((from, pos)) = process_queue.pop_front() {
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let (exists, cull) = if let Some((sec, rendered_on)) =
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self.get_render_section_mut(pos.0, pos.1, pos.2)
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{
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if *rendered_on == renderer.frame_id {
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continue;
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}
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*rendered_on = renderer.frame_id;
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let min = cgmath::Point3::new(
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pos.0 as f32 * 16.0,
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-pos.1 as f32 * 16.0,
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pos.2 as f32 * 16.0,
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);
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let bounds =
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collision::Aabb3::new(min, min + cgmath::Vector3::new(16.0, -16.0, 16.0));
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if renderer.frustum.contains(&bounds) == collision::Relation::Out
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&& from != Direction::Invalid
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{
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continue;
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}
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(
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sec.is_some(),
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sec.map_or(chunk_builder::CullInfo::all_vis(), |v| v.cull_info),
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)
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} else {
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continue;
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};
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if exists {
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self.render_list.push(pos);
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}
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for dir in Direction::all() {
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let (ox, oy, oz) = dir.get_offset();
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let opos = (pos.0 + ox, pos.1 + oy, pos.2 + oz);
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if let Some((_, rendered_on)) = self.get_render_section_mut(opos.0, opos.1, opos.2)
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{
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if *rendered_on == renderer.frame_id {
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continue;
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}
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if from == Direction::Invalid
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|| (valid_dirs[dir.index()] && cull.is_visible(from, dir))
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{
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process_queue.push_back((dir.opposite(), opos));
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}
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}
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}
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}
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}
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pub fn get_render_list(&self) -> Vec<((i32, i32, i32), &render::ChunkBuffer)> {
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self.render_list
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.iter()
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.map(|v| {
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let chunk = self.chunks.get(&CPos(v.0, v.2)).unwrap();
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let sec = chunk.sections[v.1 as usize].as_ref().unwrap();
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(*v, &sec.render_buffer)
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})
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.collect()
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}
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pub fn get_section_mut(&mut self, x: i32, y: i32, z: i32) -> Option<&mut Section> {
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if let Some(chunk) = self.chunks.get_mut(&CPos(x, z)) {
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if let Some(sec) = chunk.sections[y as usize].as_mut() {
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return Some(sec);
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}
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}
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None
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}
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fn get_render_section_mut(
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&mut self,
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x: i32,
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y: i32,
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z: i32,
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) -> Option<(Option<&mut Section>, &mut u32)> {
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if y < 0 || y > 15 {
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return None;
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}
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if let Some(chunk) = self.chunks.get_mut(&CPos(x, z)) {
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let rendered = &mut chunk.sections_rendered_on[y as usize];
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if let Some(sec) = chunk.sections[y as usize].as_mut() {
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return Some((Some(sec), rendered));
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}
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return Some((None, rendered));
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}
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None
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}
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pub fn get_dirty_chunk_sections(&mut self) -> Vec<(i32, i32, i32)> {
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let mut out = vec![];
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for (_, chunk) in &mut self.chunks {
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for sec in &mut chunk.sections {
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if let Some(sec) = sec.as_mut() {
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if !sec.building && sec.dirty {
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out.push((chunk.position.0, sec.y as i32, chunk.position.1));
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}
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}
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}
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}
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out
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}
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fn set_dirty(&mut self, x: i32, y: i32, z: i32) {
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if let Some(chunk) = self.chunks.get_mut(&CPos(x, z)) {
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if let Some(sec) = chunk.sections.get_mut(y as usize).and_then(|v| v.as_mut()) {
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sec.dirty = true;
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}
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}
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}
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pub fn is_section_dirty(&self, pos: (i32, i32, i32)) -> bool {
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if let Some(chunk) = self.chunks.get(&CPos(pos.0, pos.2)) {
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if let Some(sec) = chunk.sections[pos.1 as usize].as_ref() {
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return sec.dirty && !sec.building;
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}
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}
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false
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}
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pub fn set_building_flag(&mut self, pos: (i32, i32, i32)) {
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if let Some(chunk) = self.chunks.get_mut(&CPos(pos.0, pos.2)) {
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if let Some(sec) = chunk.sections[pos.1 as usize].as_mut() {
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sec.building = true;
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sec.dirty = false;
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}
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}
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}
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pub fn reset_building_flag(&mut self, pos: (i32, i32, i32)) {
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if let Some(chunk) = self.chunks.get_mut(&CPos(pos.0, pos.2)) {
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if let Some(section) = chunk.sections[pos.1 as usize].as_mut() {
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section.building = false;
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}
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}
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}
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pub fn flag_dirty_all(&mut self) {
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for (_, chunk) in &mut self.chunks {
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for sec in &mut chunk.sections {
|
|
if let Some(sec) = sec.as_mut() {
|
|
sec.dirty = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn capture_snapshot(&self, x: i32, y: i32, z: i32, w: i32, h: i32, d: i32) -> Snapshot {
|
|
use std::cmp::{max, min};
|
|
let mut snapshot = Snapshot {
|
|
blocks: storage::BlockStorage::new_default((w * h * d) as usize, block::Missing {}),
|
|
block_light: nibble::Array::new((w * h * d) as usize),
|
|
sky_light: nibble::Array::new((w * h * d) as usize),
|
|
biomes: vec![0; (w * d) as usize],
|
|
|
|
x,
|
|
y,
|
|
z,
|
|
w,
|
|
_h: h,
|
|
d,
|
|
};
|
|
for i in 0..(w * h * d) as usize {
|
|
snapshot.sky_light.set(i, 0xF);
|
|
}
|
|
|
|
let cx1 = x >> 4;
|
|
let cy1 = y >> 4;
|
|
let cz1 = z >> 4;
|
|
let cx2 = (x + w + 15) >> 4;
|
|
let cy2 = (y + h + 15) >> 4;
|
|
let cz2 = (z + d + 15) >> 4;
|
|
|
|
for cx in cx1..cx2 {
|
|
for cz in cz1..cz2 {
|
|
let chunk = match self.chunks.get(&CPos(cx, cz)) {
|
|
Some(val) => val,
|
|
None => continue,
|
|
};
|
|
|
|
let x1 = min(16, max(0, x - (cx << 4)));
|
|
let x2 = min(16, max(0, x + w - (cx << 4)));
|
|
let z1 = min(16, max(0, z - (cz << 4)));
|
|
let z2 = min(16, max(0, z + d - (cz << 4)));
|
|
|
|
for cy in cy1..cy2 {
|
|
if cy < 0 || cy > 15 {
|
|
continue;
|
|
}
|
|
let section = &chunk.sections[cy as usize];
|
|
let y1 = min(16, max(0, y - (cy << 4)));
|
|
let y2 = min(16, max(0, y + h - (cy << 4)));
|
|
|
|
for yy in y1..y2 {
|
|
for zz in z1..z2 {
|
|
for xx in x1..x2 {
|
|
let ox = xx + (cx << 4);
|
|
let oy = yy + (cy << 4);
|
|
let oz = zz + (cz << 4);
|
|
match section.as_ref() {
|
|
Some(sec) => {
|
|
snapshot.set_block(ox, oy, oz, sec.get_block(xx, yy, zz));
|
|
snapshot.set_block_light(
|
|
ox,
|
|
oy,
|
|
oz,
|
|
sec.get_block_light(xx, yy, zz),
|
|
);
|
|
snapshot.set_sky_light(
|
|
ox,
|
|
oy,
|
|
oz,
|
|
sec.get_sky_light(xx, yy, zz),
|
|
);
|
|
}
|
|
None => {
|
|
snapshot.set_block(ox, oy, oz, block::Air {});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for zz in z1..z2 {
|
|
for xx in x1..x2 {
|
|
let ox = xx + (cx << 4);
|
|
let oz = zz + (cz << 4);
|
|
snapshot.set_biome(ox, oz, chunk.get_biome(xx, zz));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
snapshot
|
|
}
|
|
|
|
pub fn unload_chunk(&mut self, x: i32, z: i32, m: &mut ecs::Manager) {
|
|
if let Some(chunk) = self.chunks.remove(&CPos(x, z)) {
|
|
for entity in chunk.block_entities.values() {
|
|
m.remove_entity(*entity);
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn load_chunks18(
|
|
&mut self,
|
|
new: bool,
|
|
skylight: bool,
|
|
chunk_metas: &[crate::protocol::packet::ChunkMeta],
|
|
data: Vec<u8>,
|
|
) -> Result<(), protocol::Error> {
|
|
let mut data = std::io::Cursor::new(data);
|
|
|
|
for chunk_meta in chunk_metas {
|
|
let x = chunk_meta.x;
|
|
let z = chunk_meta.z;
|
|
let mask = chunk_meta.bitmask;
|
|
|
|
self.load_chunk18(x, z, new, skylight, mask, &mut data)?;
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
fn dirty_chunks_by_bitmask(&mut self, x: i32, z: i32, mask: u16) {
|
|
for i in 0..16 {
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
for pos in [
|
|
(-1, 0, 0),
|
|
(1, 0, 0),
|
|
(0, -1, 0),
|
|
(0, 1, 0),
|
|
(0, 0, -1),
|
|
(0, 0, 1),
|
|
]
|
|
.iter()
|
|
{
|
|
self.flag_section_dirty(x + pos.0, i as i32 + pos.1, z + pos.2);
|
|
}
|
|
self.update_range(
|
|
(x << 4) - 1,
|
|
(i << 4) - 1,
|
|
(z << 4) - 1,
|
|
(x << 4) + 17,
|
|
(i << 4) + 17,
|
|
(z << 4) + 17,
|
|
);
|
|
}
|
|
}
|
|
|
|
pub fn load_chunk18(
|
|
&mut self,
|
|
x: i32,
|
|
z: i32,
|
|
new: bool,
|
|
_skylight: bool,
|
|
mask: u16,
|
|
data: &mut std::io::Cursor<Vec<u8>>,
|
|
) -> Result<(), protocol::Error> {
|
|
use byteorder::ReadBytesExt;
|
|
|
|
let cpos = CPos(x, z);
|
|
{
|
|
let chunk = if new {
|
|
self.chunks.insert(cpos, Chunk::new(cpos));
|
|
self.chunks.get_mut(&cpos).unwrap()
|
|
} else {
|
|
if !self.chunks.contains_key(&cpos) {
|
|
return Ok(());
|
|
}
|
|
self.chunks.get_mut(&cpos).unwrap()
|
|
};
|
|
|
|
for i in 0..16 {
|
|
if chunk.sections[i].is_none() {
|
|
let mut fill_sky = chunk.sections.iter().skip(i).all(|v| v.is_none());
|
|
fill_sky &= (mask & !((1 << i) | ((1 << i) - 1))) == 0;
|
|
if !fill_sky || mask & (1 << i) != 0 {
|
|
chunk.sections[i] = Some(Section::new(i as u8, fill_sky));
|
|
}
|
|
}
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
let section = chunk.sections[i as usize].as_mut().unwrap();
|
|
section.dirty = true;
|
|
|
|
for bi in 0..4096 {
|
|
let id = data.read_u16::<byteorder::LittleEndian>()?;
|
|
section.blocks.set(
|
|
bi,
|
|
block::Block::by_vanilla_id(
|
|
id as usize,
|
|
self.protocol_version,
|
|
&self.modded_block_ids,
|
|
),
|
|
);
|
|
|
|
// Spawn block entities
|
|
let b = section.blocks.get(bi);
|
|
if block_entity::BlockEntityType::get_block_entity(b).is_some() {
|
|
let pos = Position::new(
|
|
(bi & 0xF) as i32,
|
|
(bi >> 8) as i32,
|
|
((bi >> 4) & 0xF) as i32,
|
|
) + (
|
|
chunk.position.0 << 4,
|
|
(i << 4) as i32,
|
|
chunk.position.1 << 4,
|
|
);
|
|
if chunk.block_entities.contains_key(&pos) {
|
|
self.block_entity_actions
|
|
.push_back(BlockEntityAction::Remove(pos))
|
|
}
|
|
self.block_entity_actions
|
|
.push_back(BlockEntityAction::Create(pos))
|
|
}
|
|
}
|
|
}
|
|
|
|
for i in 0..16 {
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
let section = chunk.sections[i as usize].as_mut().unwrap();
|
|
|
|
data.read_exact(&mut section.block_light.data)?;
|
|
}
|
|
|
|
for i in 0..16 {
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
let section = chunk.sections[i as usize].as_mut().unwrap();
|
|
|
|
data.read_exact(&mut section.sky_light.data)?;
|
|
}
|
|
|
|
if new {
|
|
data.read_exact(&mut chunk.biomes)?;
|
|
}
|
|
|
|
chunk.calculate_heightmap();
|
|
}
|
|
|
|
self.dirty_chunks_by_bitmask(x, z, mask);
|
|
Ok(())
|
|
}
|
|
|
|
pub fn load_chunks17(
|
|
&mut self,
|
|
chunk_column_count: u16,
|
|
data_length: i32,
|
|
skylight: bool,
|
|
data: &[u8],
|
|
) -> Result<(), protocol::Error> {
|
|
let compressed_chunk_data = &data[0..data_length as usize];
|
|
let metadata = &data[data_length as usize..];
|
|
|
|
let mut zlib = ZlibDecoder::new(std::io::Cursor::new(compressed_chunk_data.to_vec()));
|
|
let mut chunk_data = Vec::new();
|
|
zlib.read_to_end(&mut chunk_data)?;
|
|
|
|
let mut chunk_data = std::io::Cursor::new(chunk_data);
|
|
|
|
// Chunk metadata
|
|
let mut metadata = std::io::Cursor::new(metadata);
|
|
for _i in 0..chunk_column_count {
|
|
use byteorder::ReadBytesExt;
|
|
|
|
let x = metadata.read_i32::<byteorder::BigEndian>()?;
|
|
let z = metadata.read_i32::<byteorder::BigEndian>()?;
|
|
let mask = metadata.read_u16::<byteorder::BigEndian>()?;
|
|
let mask_add = metadata.read_u16::<byteorder::BigEndian>()?;
|
|
|
|
let new = true;
|
|
|
|
self.load_uncompressed_chunk17(x, z, new, skylight, mask, mask_add, &mut chunk_data)?;
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
pub fn load_chunk17(
|
|
&mut self,
|
|
x: i32,
|
|
z: i32,
|
|
new: bool,
|
|
mask: u16,
|
|
mask_add: u16,
|
|
compressed_data: Vec<u8>,
|
|
) -> Result<(), protocol::Error> {
|
|
let mut zlib = ZlibDecoder::new(std::io::Cursor::new(compressed_data.to_vec()));
|
|
let mut data = Vec::new();
|
|
zlib.read_to_end(&mut data)?;
|
|
|
|
let skylight = true;
|
|
self.load_uncompressed_chunk17(
|
|
x,
|
|
z,
|
|
new,
|
|
skylight,
|
|
mask,
|
|
mask_add,
|
|
&mut std::io::Cursor::new(data),
|
|
)
|
|
}
|
|
|
|
fn load_uncompressed_chunk17(
|
|
&mut self,
|
|
x: i32,
|
|
z: i32,
|
|
new: bool,
|
|
skylight: bool,
|
|
mask: u16,
|
|
mask_add: u16,
|
|
data: &mut std::io::Cursor<Vec<u8>>,
|
|
) -> Result<(), protocol::Error> {
|
|
let cpos = CPos(x, z);
|
|
{
|
|
let chunk = if new {
|
|
self.chunks.insert(cpos, Chunk::new(cpos));
|
|
self.chunks.get_mut(&cpos).unwrap()
|
|
} else {
|
|
if !self.chunks.contains_key(&cpos) {
|
|
return Ok(());
|
|
}
|
|
self.chunks.get_mut(&cpos).unwrap()
|
|
};
|
|
|
|
// Block type array - whole byte per block
|
|
let mut block_types = [[0u8; 4096]; 16];
|
|
for i in 0..16 {
|
|
if chunk.sections[i].is_none() {
|
|
let mut fill_sky = chunk.sections.iter().skip(i).all(|v| v.is_none());
|
|
fill_sky &= (mask & !((1 << i) | ((1 << i) - 1))) == 0;
|
|
if !fill_sky || mask & (1 << i) != 0 {
|
|
chunk.sections[i] = Some(Section::new(i as u8, fill_sky));
|
|
}
|
|
}
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
let section = chunk.sections[i as usize].as_mut().unwrap();
|
|
section.dirty = true;
|
|
|
|
data.read_exact(&mut block_types[i])?;
|
|
}
|
|
|
|
// Block metadata array - half byte per block
|
|
let mut block_meta: [nibble::Array; 16] = [
|
|
// TODO: cleanup this initialization
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
];
|
|
|
|
for i in 0..16 {
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
|
|
data.read_exact(&mut block_meta[i].data)?;
|
|
}
|
|
|
|
// Block light array - half byte per block
|
|
for i in 0..16 {
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
let section = chunk.sections[i as usize].as_mut().unwrap();
|
|
|
|
data.read_exact(&mut section.block_light.data)?;
|
|
}
|
|
|
|
// Sky light array - half byte per block - only if 'skylight' is true
|
|
if skylight {
|
|
for i in 0..16 {
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
let section = chunk.sections[i as usize].as_mut().unwrap();
|
|
|
|
data.read_exact(&mut section.sky_light.data)?;
|
|
}
|
|
}
|
|
|
|
// Add array - half byte per block - uses secondary bitmask
|
|
let mut block_add: [nibble::Array; 16] = [
|
|
// TODO: cleanup this initialization
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
nibble::Array::new(16 * 16 * 16),
|
|
];
|
|
|
|
for i in 0..16 {
|
|
if mask_add & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
data.read_exact(&mut block_add[i].data)?;
|
|
}
|
|
|
|
// Now that we have the block types, metadata, and add, combine to initialize the blocks
|
|
for i in 0..16 {
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
|
|
let section = chunk.sections[i as usize].as_mut().unwrap();
|
|
|
|
for bi in 0..4096 {
|
|
let id = ((block_add[i].get(bi) as u16) << 12)
|
|
| ((block_types[i][bi] as u16) << 4)
|
|
| (block_meta[i].get(bi) as u16);
|
|
section.blocks.set(
|
|
bi,
|
|
block::Block::by_vanilla_id(
|
|
id as usize,
|
|
self.protocol_version,
|
|
&self.modded_block_ids,
|
|
),
|
|
);
|
|
|
|
// Spawn block entities
|
|
let b = section.blocks.get(bi);
|
|
if block_entity::BlockEntityType::get_block_entity(b).is_some() {
|
|
let pos = Position::new(
|
|
(bi & 0xF) as i32,
|
|
(bi >> 8) as i32,
|
|
((bi >> 4) & 0xF) as i32,
|
|
) + (
|
|
chunk.position.0 << 4,
|
|
(i << 4) as i32,
|
|
chunk.position.1 << 4,
|
|
);
|
|
if chunk.block_entities.contains_key(&pos) {
|
|
self.block_entity_actions
|
|
.push_back(BlockEntityAction::Remove(pos))
|
|
}
|
|
self.block_entity_actions
|
|
.push_back(BlockEntityAction::Create(pos))
|
|
}
|
|
}
|
|
}
|
|
|
|
if new {
|
|
data.read_exact(&mut chunk.biomes)?;
|
|
}
|
|
|
|
chunk.calculate_heightmap();
|
|
}
|
|
|
|
self.dirty_chunks_by_bitmask(x, z, mask);
|
|
Ok(())
|
|
}
|
|
|
|
pub fn load_chunk19(
|
|
&mut self,
|
|
x: i32,
|
|
z: i32,
|
|
new: bool,
|
|
mask: u16,
|
|
data: Vec<u8>,
|
|
) -> Result<(), protocol::Error> {
|
|
self.load_chunk19_or_115(true, x, z, new, mask, data)
|
|
}
|
|
|
|
pub fn load_chunk115(
|
|
&mut self,
|
|
x: i32,
|
|
z: i32,
|
|
new: bool,
|
|
mask: u16,
|
|
data: Vec<u8>,
|
|
) -> Result<(), protocol::Error> {
|
|
self.load_chunk19_or_115(false, x, z, new, mask, data)
|
|
}
|
|
|
|
fn load_chunk19_or_115(
|
|
&mut self,
|
|
read_biomes: bool,
|
|
x: i32,
|
|
z: i32,
|
|
new: bool,
|
|
mask: u16,
|
|
data: Vec<u8>,
|
|
) -> Result<(), protocol::Error> {
|
|
use crate::protocol::{LenPrefixed, Serializable, VarInt};
|
|
use byteorder::ReadBytesExt;
|
|
use std::io::Cursor;
|
|
|
|
let mut data = Cursor::new(data);
|
|
|
|
let cpos = CPos(x, z);
|
|
{
|
|
let chunk = if new {
|
|
self.chunks.insert(cpos, Chunk::new(cpos));
|
|
self.chunks.get_mut(&cpos).unwrap()
|
|
} else {
|
|
if !self.chunks.contains_key(&cpos) {
|
|
return Ok(());
|
|
}
|
|
self.chunks.get_mut(&cpos).unwrap()
|
|
};
|
|
|
|
for i in 0..16 {
|
|
if chunk.sections[i].is_none() {
|
|
let mut fill_sky = chunk.sections.iter().skip(i).all(|v| v.is_none());
|
|
fill_sky &= (mask & !((1 << i) | ((1 << i) - 1))) == 0;
|
|
if !fill_sky || mask & (1 << i) != 0 {
|
|
chunk.sections[i] = Some(Section::new(i as u8, fill_sky));
|
|
}
|
|
}
|
|
if mask & (1 << i) == 0 {
|
|
continue;
|
|
}
|
|
let section = chunk.sections[i as usize].as_mut().unwrap();
|
|
section.dirty = true;
|
|
|
|
if self.protocol_version >= 451 {
|
|
let _block_count = data.read_u16::<byteorder::LittleEndian>()?;
|
|
// TODO: use block_count
|
|
}
|
|
|
|
let mut bit_size = data.read_u8()?;
|
|
let mut mappings: HashMap<usize, block::Block, BuildHasherDefault<FNVHash>> =
|
|
HashMap::with_hasher(BuildHasherDefault::default());
|
|
if bit_size == 0 {
|
|
bit_size = 13;
|
|
} else {
|
|
let count = VarInt::read_from(&mut data)?.0;
|
|
for i in 0..count {
|
|
let id = VarInt::read_from(&mut data)?.0;
|
|
let bl = block::Block::by_vanilla_id(
|
|
id as usize,
|
|
self.protocol_version,
|
|
&self.modded_block_ids,
|
|
);
|
|
mappings.insert(i as usize, bl);
|
|
}
|
|
}
|
|
|
|
let bits = LenPrefixed::<VarInt, u64>::read_from(&mut data)?.data;
|
|
let m = bit::Map::from_raw(bits, bit_size as usize);
|
|
|
|
for bi in 0..4096 {
|
|
let id = m.get(bi);
|
|
section.blocks.set(
|
|
bi,
|
|
mappings
|
|
.get(&id)
|
|
.cloned()
|
|
.unwrap_or(block::Block::by_vanilla_id(
|
|
id,
|
|
self.protocol_version,
|
|
&self.modded_block_ids,
|
|
)),
|
|
);
|
|
// Spawn block entities
|
|
let b = section.blocks.get(bi);
|
|
if block_entity::BlockEntityType::get_block_entity(b).is_some() {
|
|
let pos = Position::new(
|
|
(bi & 0xF) as i32,
|
|
(bi >> 8) as i32,
|
|
((bi >> 4) & 0xF) as i32,
|
|
) + (
|
|
chunk.position.0 << 4,
|
|
(i << 4) as i32,
|
|
chunk.position.1 << 4,
|
|
);
|
|
if chunk.block_entities.contains_key(&pos) {
|
|
self.block_entity_actions
|
|
.push_back(BlockEntityAction::Remove(pos))
|
|
}
|
|
self.block_entity_actions
|
|
.push_back(BlockEntityAction::Create(pos))
|
|
}
|
|
}
|
|
|
|
if self.protocol_version >= 451 {
|
|
// Skylight in update skylight packet for 1.14+
|
|
} else {
|
|
data.read_exact(&mut section.block_light.data)?;
|
|
data.read_exact(&mut section.sky_light.data)?;
|
|
}
|
|
}
|
|
|
|
if read_biomes && new {
|
|
data.read_exact(&mut chunk.biomes)?;
|
|
}
|
|
|
|
chunk.calculate_heightmap();
|
|
}
|
|
|
|
self.dirty_chunks_by_bitmask(x, z, mask);
|
|
Ok(())
|
|
}
|
|
|
|
fn flag_section_dirty(&mut self, x: i32, y: i32, z: i32) {
|
|
if y < 0 || y > 15 {
|
|
return;
|
|
}
|
|
let cpos = CPos(x, z);
|
|
if let Some(chunk) = self.chunks.get_mut(&cpos) {
|
|
if let Some(sec) = chunk.sections[y as usize].as_mut() {
|
|
sec.dirty = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl block::WorldAccess for World {
|
|
fn get_block(&self, pos: Position) -> block::Block {
|
|
World::get_block(self, pos)
|
|
}
|
|
}
|
|
|
|
pub struct Snapshot {
|
|
blocks: storage::BlockStorage,
|
|
block_light: nibble::Array,
|
|
sky_light: nibble::Array,
|
|
biomes: Vec<u8>,
|
|
|
|
x: i32,
|
|
y: i32,
|
|
z: i32,
|
|
w: i32,
|
|
_h: i32,
|
|
d: i32,
|
|
}
|
|
|
|
impl Snapshot {
|
|
pub fn make_relative(&mut self, x: i32, y: i32, z: i32) {
|
|
self.x = x;
|
|
self.y = y;
|
|
self.z = z;
|
|
}
|
|
|
|
pub fn get_block(&self, x: i32, y: i32, z: i32) -> block::Block {
|
|
self.blocks.get(self.index(x, y, z))
|
|
}
|
|
|
|
pub fn set_block(&mut self, x: i32, y: i32, z: i32, b: block::Block) {
|
|
let idx = self.index(x, y, z);
|
|
self.blocks.set(idx, b);
|
|
}
|
|
|
|
pub fn get_block_light(&self, x: i32, y: i32, z: i32) -> u8 {
|
|
self.block_light.get(self.index(x, y, z))
|
|
}
|
|
|
|
pub fn set_block_light(&mut self, x: i32, y: i32, z: i32, l: u8) {
|
|
let idx = self.index(x, y, z);
|
|
self.block_light.set(idx, l);
|
|
}
|
|
|
|
pub fn get_sky_light(&self, x: i32, y: i32, z: i32) -> u8 {
|
|
self.sky_light.get(self.index(x, y, z))
|
|
}
|
|
|
|
pub fn set_sky_light(&mut self, x: i32, y: i32, z: i32, l: u8) {
|
|
let idx = self.index(x, y, z);
|
|
self.sky_light.set(idx, l);
|
|
}
|
|
|
|
pub fn get_biome(&self, x: i32, z: i32) -> biome::Biome {
|
|
biome::Biome::by_id(self.biomes[((x - self.x) + ((z - self.z) * self.w)) as usize] as usize)
|
|
}
|
|
|
|
pub fn set_biome(&mut self, x: i32, z: i32, b: biome::Biome) {
|
|
self.biomes[((x - self.x) + ((z - self.z) * self.w)) as usize] = b.id as u8;
|
|
}
|
|
|
|
#[inline]
|
|
fn index(&self, x: i32, y: i32, z: i32) -> usize {
|
|
((x - self.x) + ((z - self.z) * self.w) + ((y - self.y) * self.w * self.d)) as usize
|
|
}
|
|
}
|
|
|
|
#[derive(PartialEq, Eq, Hash, Clone, Copy)]
|
|
pub struct CPos(i32, i32);
|
|
|
|
pub struct Chunk {
|
|
position: CPos,
|
|
|
|
sections: [Option<Section>; 16],
|
|
sections_rendered_on: [u32; 16],
|
|
biomes: [u8; 16 * 16],
|
|
|
|
heightmap: [u8; 16 * 16],
|
|
heightmap_dirty: bool,
|
|
|
|
block_entities: HashMap<Position, ecs::Entity, BuildHasherDefault<FNVHash>>,
|
|
}
|
|
|
|
impl Chunk {
|
|
fn new(pos: CPos) -> Chunk {
|
|
Chunk {
|
|
position: pos,
|
|
sections: [
|
|
None, None, None, None, None, None, None, None, None, None, None, None, None, None,
|
|
None, None,
|
|
],
|
|
sections_rendered_on: [0; 16],
|
|
biomes: [0; 16 * 16],
|
|
heightmap: [0; 16 * 16],
|
|
heightmap_dirty: true,
|
|
block_entities: HashMap::with_hasher(BuildHasherDefault::default()),
|
|
}
|
|
}
|
|
|
|
fn calculate_heightmap(&mut self) {
|
|
for x in 0..16 {
|
|
for z in 0..16 {
|
|
let idx = ((z << 4) | x) as usize;
|
|
for yy in 0..256 {
|
|
let sy = 255 - yy;
|
|
if let block::Air { .. } = self.get_block(x, sy, z) {
|
|
continue;
|
|
}
|
|
self.heightmap[idx] = sy as u8;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
self.heightmap_dirty = true;
|
|
}
|
|
|
|
fn set_block(&mut self, x: i32, y: i32, z: i32, b: block::Block) -> bool {
|
|
let s_idx = y >> 4;
|
|
if s_idx < 0 || s_idx > 15 {
|
|
return false;
|
|
}
|
|
let s_idx = s_idx as usize;
|
|
if self.sections[s_idx].is_none() {
|
|
if let block::Air {} = b {
|
|
return false;
|
|
}
|
|
let fill_sky = self.sections.iter().skip(s_idx).all(|v| v.is_none());
|
|
self.sections[s_idx] = Some(Section::new(s_idx as u8, fill_sky));
|
|
}
|
|
{
|
|
let section = self.sections[s_idx as usize].as_mut().unwrap();
|
|
if !section.set_block(x, y & 0xF, z, b) {
|
|
return false;
|
|
}
|
|
}
|
|
let idx = ((z << 4) | x) as usize;
|
|
if self.heightmap[idx] < y as u8 {
|
|
self.heightmap[idx] = y as u8;
|
|
self.heightmap_dirty = true;
|
|
} else if self.heightmap[idx] == y as u8 {
|
|
// Find a new lowest
|
|
for yy in 0..y {
|
|
let sy = y - yy - 1;
|
|
if let block::Air { .. } = self.get_block(x, sy, z) {
|
|
continue;
|
|
}
|
|
self.heightmap[idx] = sy as u8;
|
|
break;
|
|
}
|
|
self.heightmap_dirty = true;
|
|
}
|
|
true
|
|
}
|
|
|
|
fn get_block(&self, x: i32, y: i32, z: i32) -> block::Block {
|
|
let s_idx = y >> 4;
|
|
if s_idx < 0 || s_idx > 15 {
|
|
return block::Missing {};
|
|
}
|
|
match self.sections[s_idx as usize].as_ref() {
|
|
Some(sec) => sec.get_block(x, y & 0xF, z),
|
|
None => block::Air {},
|
|
}
|
|
}
|
|
|
|
fn get_block_light(&self, x: i32, y: i32, z: i32) -> u8 {
|
|
let s_idx = y >> 4;
|
|
if s_idx < 0 || s_idx > 15 {
|
|
return 0;
|
|
}
|
|
match self.sections[s_idx as usize].as_ref() {
|
|
Some(sec) => sec.get_block_light(x, y & 0xF, z),
|
|
None => 0,
|
|
}
|
|
}
|
|
|
|
fn set_block_light(&mut self, x: i32, y: i32, z: i32, light: u8) {
|
|
let s_idx = y >> 4;
|
|
if s_idx < 0 || s_idx > 15 {
|
|
return;
|
|
}
|
|
let s_idx = s_idx as usize;
|
|
if self.sections[s_idx].is_none() {
|
|
if light == 0 {
|
|
return;
|
|
}
|
|
let fill_sky = self.sections.iter().skip(s_idx).all(|v| v.is_none());
|
|
self.sections[s_idx] = Some(Section::new(s_idx as u8, fill_sky));
|
|
}
|
|
if let Some(sec) = self.sections[s_idx].as_mut() {
|
|
sec.set_block_light(x, y & 0xF, z, light)
|
|
}
|
|
}
|
|
|
|
fn get_sky_light(&self, x: i32, y: i32, z: i32) -> u8 {
|
|
let s_idx = y >> 4;
|
|
if s_idx < 0 || s_idx > 15 {
|
|
return 15;
|
|
}
|
|
match self.sections[s_idx as usize].as_ref() {
|
|
Some(sec) => sec.get_sky_light(x, y & 0xF, z),
|
|
None => 15,
|
|
}
|
|
}
|
|
|
|
fn set_sky_light(&mut self, x: i32, y: i32, z: i32, light: u8) {
|
|
let s_idx = y >> 4;
|
|
if s_idx < 0 || s_idx > 15 {
|
|
return;
|
|
}
|
|
let s_idx = s_idx as usize;
|
|
if self.sections[s_idx].is_none() {
|
|
if light == 15 {
|
|
return;
|
|
}
|
|
let fill_sky = self.sections.iter().skip(s_idx).all(|v| v.is_none());
|
|
self.sections[s_idx] = Some(Section::new(s_idx as u8, fill_sky));
|
|
}
|
|
if let Some(sec) = self.sections[s_idx as usize].as_mut() {
|
|
sec.set_sky_light(x, y & 0xF, z, light)
|
|
}
|
|
}
|
|
|
|
fn get_biome(&self, x: i32, z: i32) -> biome::Biome {
|
|
biome::Biome::by_id(self.biomes[((z << 4) | x) as usize] as usize)
|
|
}
|
|
}
|
|
|
|
pub struct Section {
|
|
pub cull_info: chunk_builder::CullInfo,
|
|
pub render_buffer: render::ChunkBuffer,
|
|
|
|
y: u8,
|
|
|
|
blocks: storage::BlockStorage,
|
|
|
|
block_light: nibble::Array,
|
|
sky_light: nibble::Array,
|
|
|
|
dirty: bool,
|
|
building: bool,
|
|
}
|
|
|
|
impl Section {
|
|
fn new(y: u8, fill_sky: bool) -> Section {
|
|
let mut section = Section {
|
|
cull_info: chunk_builder::CullInfo::all_vis(),
|
|
render_buffer: render::ChunkBuffer::new(),
|
|
y,
|
|
|
|
blocks: storage::BlockStorage::new(4096),
|
|
|
|
block_light: nibble::Array::new(16 * 16 * 16),
|
|
sky_light: nibble::Array::new(16 * 16 * 16),
|
|
|
|
dirty: false,
|
|
building: false,
|
|
};
|
|
if fill_sky {
|
|
for i in 0..16 * 16 * 16 {
|
|
section.sky_light.set(i, 0xF);
|
|
}
|
|
}
|
|
section
|
|
}
|
|
|
|
fn get_block(&self, x: i32, y: i32, z: i32) -> block::Block {
|
|
self.blocks.get(((y << 8) | (z << 4) | x) as usize)
|
|
}
|
|
|
|
fn set_block(&mut self, x: i32, y: i32, z: i32, b: block::Block) -> bool {
|
|
if self.blocks.set(((y << 8) | (z << 4) | x) as usize, b) {
|
|
self.dirty = true;
|
|
self.set_sky_light(x, y, z, 0);
|
|
self.set_block_light(x, y, z, 0);
|
|
true
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
fn get_block_light(&self, x: i32, y: i32, z: i32) -> u8 {
|
|
self.block_light.get(((y << 8) | (z << 4) | x) as usize)
|
|
}
|
|
|
|
fn set_block_light(&mut self, x: i32, y: i32, z: i32, l: u8) {
|
|
self.block_light.set(((y << 8) | (z << 4) | x) as usize, l);
|
|
}
|
|
|
|
fn get_sky_light(&self, x: i32, y: i32, z: i32) -> u8 {
|
|
self.sky_light.get(((y << 8) | (z << 4) | x) as usize)
|
|
}
|
|
|
|
fn set_sky_light(&mut self, x: i32, y: i32, z: i32, l: u8) {
|
|
self.sky_light.set(((y << 8) | (z << 4) | x) as usize, l);
|
|
}
|
|
}
|