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make epoch pattern similar to exit-epoch loop

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protolambda 2019-06-18 21:57:37 +02:00
parent f0e909c8d8
commit 346e61dfeb
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1 changed files with 3 additions and 3 deletions
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specs/core/0_beacon-chain.md
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@ -704,11 +704,11 @@ def get_shard_delta(state: BeaconState, epoch: Epoch) -> int:
```python
def get_epoch_start_shard(state: BeaconState, epoch: Epoch) -> Shard:
assert epoch <= get_current_epoch(state) + 1
check_epoch = get_current_epoch(state) + 1
check_epoch = Epoch(get_current_epoch(state) + 1)
shard = Shard((state.start_shard + get_shard_delta(state, get_current_epoch(state))) % SHARD_COUNT)
while check_epoch > epoch:
check_epoch -= 1
shard = Shard((shard + SHARD_COUNT - get_shard_delta(state, Epoch(check_epoch))) % SHARD_COUNT)
check_epoch -= Epoch(1)
shard = Shard((shard + SHARD_COUNT - get_shard_delta(state, check_epoch)) % SHARD_COUNT)
return shard
```