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Work around a block mapping bug

This commit is contained in:
Thinkofname 2016-04-21 13:38:49 +01:00
parent df37ec283d
commit d719e117ad
1 changed files with 9 additions and 6 deletions
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15
src/world/storage.rs
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@ -40,13 +40,16 @@ impl BlockStorage {
if old == b { if old == b {
return false; return false;
} }
// Clean up old block // Clean up the old block
{ {
let idx = self.rev_block_map[&old]; // BUG: This lookup should never fail but sometimes will
let info = &mut self.block_map[idx]; // due to an issue with loading chunks from the server.
info.1 -= 1; if let Some(idx) = self.rev_block_map.get(&old).cloned() {
if info.1 == 0 { // None left of this type let info = &mut self.block_map[idx];
self.rev_block_map.remove(&old); info.1 -= 1;
if info.1 == 0 { // None left of this type
self.rev_block_map.remove(&old);
}
} }
} }