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feat(PPO_Bot): reward + trajectory + GAE + PPO training (#16)

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Manual-backprop PPO with Adam: TrajectoryBuffer, computeGAE, ppoUpdate
(4 epochs, minibatch 64, clip 0.2, grad norm 0.5). Reward helpers
computeTickReward/computeRoundReward. Bot wired: tick transitions
collected in run loop, ppoUpdate called on onRoundEnded. Fix: add
arraymancer import to PPO_Bot.nim so Tensor resolves at top level.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Davide Cappellini
2026-08-16 15:27:15 +02:00
parent 588c9ebc2f
commit eadd177d3b
10 changed files with 572 additions and 5 deletions
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PPO_Bot/.gitignore
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nimble.develop
nimble.paths
nimbledeps