Base implementation for worlds/blocks
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#[doc(hidden)]
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#[macro_export]
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macro_rules! create_ids {
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($t:ty, ) => ();
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($t:ty, prev($prev:ident), $name:ident) => (
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#[allow(non_upper_case_globals)]
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pub const $name: $t = $prev + 1;
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);
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($t:ty, prev($prev:ident), $name:ident, $($n:ident),+) => (
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#[allow(non_upper_case_globals)]
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pub const $name: $t = $prev + 1;
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create_ids!($t, prev($name), $($n),+);
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);
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($t:ty, $name:ident, $($n:ident),+) => (
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#[allow(non_upper_case_globals)]
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pub const $name: $t = 0;
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create_ids!($t, prev($name), $($n),+);
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);
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($t:ty, $name:ident) => (
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#[allow(non_upper_case_globals)]
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pub const $name: $t = 0;
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);
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}
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@ -14,7 +14,7 @@
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pub struct Map {
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bits: Vec<u64>,
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bit_size: usize,
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pub bit_size: usize,
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length: usize,
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}
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@ -60,7 +60,7 @@ impl Map {
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map
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}
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pub fn resize(self, size: usize) -> Map {
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pub fn resize(&self, size: usize) -> Map {
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let mut n = Map::new(self.length, size);
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for i in 0..self.length {
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n.set(i, self.get(i));
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@ -19,3 +19,4 @@ mod metadata;
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pub use self::metadata::*;
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pub mod bit;
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pub mod nibble;
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@ -0,0 +1,45 @@
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// 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 struct Array {
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data: Vec<u8>,
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}
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impl Array {
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pub fn new(size: usize) -> Array {
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Array {
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data: vec![0; (size + 1) >> 1],
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}
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}
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pub fn get(&self, idx: usize) -> u8 {
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let val = self.data[idx>>1];
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if idx&1 == 0 {
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val & 0xF
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} else {
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val >> 4
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}
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}
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pub fn set(&mut self, idx: usize, val: u8) {
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let i = idx >> 1;
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let old = self.data[i];
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if idx&1 == 0 {
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self.data[i] = (old & 0xF0) | (val & 0xF);
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} else {
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self.data[i] = (old & 0x0F) | ((val & 0xF) << 4);
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}
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}
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}
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