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deeb6fc | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | """
Curriculum manager — auto-advances difficulty based on rolling success rate.
easy → medium → hard, with retreat if performance drops.
The environment calls update() after each episode and reads current_config().
"""
from .config import EnvConfig, CurriculumConfig, RealismConfig, TaskConfig
_LEVELS = {
"easy": EnvConfig.easy(),
"medium": EnvConfig.medium(),
"hard": EnvConfig.hard(),
}
class CurriculumManager:
def __init__(self, cfg: CurriculumConfig):
self._cfg = cfg
self._level_idx = 0
self._levels = cfg.levels
self._advance_count = 0 # consecutive episodes above threshold
self._retreat_count = 0
@property
def current_level(self) -> str:
return self._levels[self._level_idx]
def current_config(self) -> EnvConfig:
return _LEVELS[self.current_level]
def update(self, success_rate: float) -> str:
"""Call after each episode. Returns level name (may have changed)."""
if not self._cfg.enabled:
return self.current_level
if success_rate >= self._cfg.advance_threshold:
self._advance_count += 1
self._retreat_count = 0
if self._advance_count >= 5 and self._level_idx < len(self._levels) - 1:
self._level_idx += 1
self._advance_count = 0
print(f"[Curriculum] Advanced to {self.current_level} "
f"(success_rate={success_rate:.0%})")
elif success_rate <= self._cfg.retreat_threshold:
self._retreat_count += 1
self._advance_count = 0
if self._retreat_count >= 3 and self._level_idx > 0:
self._level_idx -= 1
self._retreat_count = 0
print(f"[Curriculum] Retreated to {self.current_level} "
f"(success_rate={success_rate:.0%})")
else:
self._advance_count = 0
self._retreat_count = 0
return self.current_level
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