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Sarpy/rlgym training/rlgym-ppo-training.py
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2023-10-22 15:35:56 +01:00

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Python

import numpy as np
from rlgym_sim.utils.gamestates import GameState
from rlgym_ppo.util import MetricsLogger
class ExampleLogger(MetricsLogger):
def _collect_metrics(self, game_state: GameState) -> list:
return [game_state.players[0].car_data.linear_velocity,
game_state.players[0].car_data.rotation_mtx(),
game_state.orange_score]
def _report_metrics(self, collected_metrics, wandb_run, cumulative_timesteps):
avg_linvel = np.zeros(3)
for metric_array in collected_metrics:
p0_linear_velocity = metric_array[0]
avg_linvel += p0_linear_velocity
avg_linvel /= len(collected_metrics)
report = {"x_vel":avg_linvel[0],
"y_vel":avg_linvel[1],
"z_vel":avg_linvel[2],
"Cumulative Timesteps":cumulative_timesteps}
wandb_run.log(report)
def build_rocketsim_env():
import rlgym_sim
from rlgym_sim.utils.reward_functions import CombinedReward
from rlgym_sim.utils.reward_functions.common_rewards import VelocityPlayerToBallReward, VelocityBallToGoalReward, \
EventReward, SaveBoostReward
from rlgym_tools.extra_rewards.kickoff_reward import KickoffReward
from rlgym_sim.utils.obs_builders import DefaultObs
from rlgym_sim.utils.terminal_conditions.common_conditions import NoTouchTimeoutCondition, GoalScoredCondition
from rlgym_sim.utils import common_values
from rlgym_sim.utils.action_parsers import ContinuousAction
spawn_opponents = True
team_size = 1
game_tick_rate = 120
tick_skip = 8
timeout_seconds = 10
timeout_ticks = int(round(timeout_seconds * game_tick_rate / tick_skip))
action_parser = ContinuousAction()
terminal_conditions = [NoTouchTimeoutCondition(timeout_ticks), GoalScoredCondition()]
rewards_to_combine = (VelocityPlayerToBallReward(),
VelocityBallToGoalReward(),
EventReward(
team_goal=1000.0,
concede=-100.0,
shot=10.0,
save=60.0,
demo=20.0,
),
KickoffReward(),
SaveBoostReward(),)
reward_weights = (1.0, 1.0, 1.0, 1.0, 1.0)
reward_fn = CombinedReward(reward_functions=rewards_to_combine,
reward_weights=reward_weights)
obs_builder = DefaultObs(
pos_coef=np.asarray([1 / common_values.SIDE_WALL_X, 1 / common_values.BACK_NET_Y, 1 / common_values.CEILING_Z]),
ang_coef=1 / np.pi,
lin_vel_coef=1 / common_values.CAR_MAX_SPEED,
ang_vel_coef=1 / common_values.CAR_MAX_ANG_VEL)
env = rlgym_sim.make(tick_skip=tick_skip,
team_size=team_size,
spawn_opponents=spawn_opponents,
terminal_conditions=terminal_conditions,
reward_fn=reward_fn,
obs_builder=obs_builder,
action_parser=action_parser)
return env
if __name__ == "__main__":
from rlgym_ppo import Learner
metrics_logger = ExampleLogger()
# 32 processes
n_proc = 32
# educated guess - could be slightly higher or lower
min_inference_size = max(1, int(round(n_proc * 0.9)))
learner = Learner(build_rocketsim_env,
n_proc=n_proc,
min_inference_size=min_inference_size,
metrics_logger=metrics_logger,
ppo_batch_size=50000,
ts_per_iteration=50000,
exp_buffer_size=150000,
ppo_minibatch_size=50000,
ppo_ent_coef=0.001,
ppo_epochs=1,
standardize_returns=True,
standardize_obs=False,
save_every_ts=100_000,
timestep_limit=1_000_000_000,
log_to_wandb=True)
learner.learn()