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replaceininv changes

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random-geek 2021-01-23 23:46:52 -08:00
parent edd54dfa7f
commit 056368b412
1 changed files with 27 additions and 18 deletions
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27
src/commands/replace_in_inv.rs
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@ -6,31 +6,38 @@ use crate::instance::{ArgType, InstBundle};
use crate::map_block::{MapBlock, NodeMetadataList};
use crate::utils::{query_keys, fmt_big_num};
const NEWLINE: u8 = b'\n';
const SPACE: u8 = b' ';
fn do_replace(inv: &mut Vec<u8>, item: &[u8], new_item: &[u8], del_meta: bool)
-> u64
{
const NEWLINE: u8 = b'\n';
const SPACE: u8 = b' ';
let mut new_inv = Vec::new();
let delete = new_item == b"Empty";
let mut new_inv = Vec::with_capacity(inv.len());
let mut mods = 0;
for line in inv.split(|&x| x == NEWLINE) {
let parts: Vec<&[u8]> = line.splitn(4, |&x| x == SPACE).collect();
if parts[0] == b"Item" && parts[1] == item {
for line in inv.split(|&x| x == NEWLINE) {
let mut parts = line.splitn(4, |&x| x == SPACE);
if parts.next() == Some(b"Item") && parts.next() == Some(item) {
if delete {
new_inv.extend_from_slice(b"Empty");
} else {
new_inv.extend_from_slice(b"Item ");
new_inv.extend_from_slice(new_item);
if let Some(count) = parts.get(2) {
if let Some(count) = parts.next() {
new_inv.push(SPACE);
new_inv.extend_from_slice(count);
}
if !del_meta {
if let Some(meta) = parts.get(3) {
if let Some(meta) = parts.next() {
new_inv.push(SPACE);
new_inv.extend_from_slice(meta);
}
}
}
mods += 1;
} else {
new_inv.extend_from_slice(line);
@ -38,7 +45,9 @@ fn do_replace(inv: &mut Vec<u8>, item: &[u8], new_item: &[u8], del_meta: bool)
new_inv.push(NEWLINE);
}
if mods > 0 {
*inv = new_inv;
}
mods
}