Files
posefit-server/app/exercises/dead_bug/state_machine.py
T
wsy182 4485cbf702 Refactor into modular app structure
Split monolithic files into focused modules:
- app/core: settings, logging, lifecycle
- app/signaling: websocket server, ICE parser, message models
- app/webrtc: peer session, video receiver, frame source
- app/vision: pose landmarker wrapper, model config, pose types
- app/exercises/dead_bug: detector, metrics, rules, state machine, types
- app/rendering: skeleton renderer, status overlay, window display
- app/audio: rep announcer
- app/diagnostics: perf timer, crash handler
- configs: environment-based settings
- tests: unit tests for rules, state machine, ICE parser
- run.py: entry point
2026-06-10 10:14:43 +08:00

72 lines
2.7 KiB
Python

from __future__ import annotations
from app.exercises.dead_bug.rules import detect_diagonal_extension, is_ready_position
from app.exercises.dead_bug.types import DeadBugMetrics, DeadBugPhase, DeadBugResult
class DeadBugStateMachine:
def __init__(self, *, extension_confirm_frames: int = 4, reset_confirm_frames: int = 3) -> None:
self.extension_confirm_frames = extension_confirm_frames
self.reset_confirm_frames = reset_confirm_frames
self.rep_count = 0
self.phase = DeadBugPhase.READY
self.active_side: str | None = None
self._candidate_side: str | None = None
self._candidate_frames = 0
self._reset_frames = 0
def update(self, metrics: DeadBugMetrics) -> DeadBugResult:
side = detect_diagonal_extension(metrics)
ready = is_ready_position(metrics)
if side is None:
self._candidate_side = None
self._candidate_frames = 0
elif side == self._candidate_side:
self._candidate_frames += 1
else:
self._candidate_side = side
self._candidate_frames = 1
if self.phase in (DeadBugPhase.READY, DeadBugPhase.NO_POSE):
if self._candidate_frames >= self.extension_confirm_frames and side is not None:
self.phase = DeadBugPhase.EXTENDING
self.active_side = side
self._reset_frames = 0
elif self.phase == DeadBugPhase.EXTENDING:
if side == self.active_side:
self.phase = DeadBugPhase.NEED_RESET
elif self.phase == DeadBugPhase.NEED_RESET:
if ready:
self._reset_frames += 1
if self._reset_frames >= self.reset_confirm_frames:
self.rep_count += 1
self.phase = DeadBugPhase.READY
self.active_side = None
self._candidate_side = None
self._candidate_frames = 0
self._reset_frames = 0
else:
self._reset_frames = 0
feedback = list(metrics.feedback)
if side is None and not ready:
feedback.append("Extend opposite arm and leg only")
if ready:
feedback.append("Ready position")
elif side == "left_arm_right_leg":
feedback.append("Left arm + right leg")
elif side == "right_arm_left_leg":
feedback.append("Right arm + left leg")
is_standard = side is not None and not metrics.feedback
return DeadBugResult(
rep_count=self.rep_count,
phase=self.phase,
side=side,
is_standard=is_standard,
feedback=feedback[:3],
metrics=metrics,
)