127 lines
4.8 KiB
Python
127 lines
4.8 KiB
Python
import time
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import numpy as np
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from typing import List, Tuple, Dict
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from .config import Config
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class FlightController:
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def __init__(self):
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self.last_sent_rc = [0, 0, 0, 0]
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self.smooth_face = None
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self.search_start = time.time()
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self.status = "INITIALIZING"
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# Memory for lost targets
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self.last_target_side = 0 # -1 for left, 1 for right
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self.lost_time = 0
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def calculate(self,
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faces: List[Tuple],
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is_manual: bool,
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emergency_stop: bool,
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is_locked: bool,
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locked_person: Tuple,
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current_height: float,
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target_altitude: float,
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tof: int,
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zones: Dict[str, bool],
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zone_scores: Dict[str, float],
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manual_rc: Tuple[int, int, int, int]) -> Tuple[Tuple[int, int, int, int], str]:
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lr, fb, ud, yv = 0, 0, 0, 0
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# Face smoothing for UI/Visuals
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if len(faces) > 0:
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target = max(faces, key=lambda f: f[2] * f[3])
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if self.smooth_face is None: self.smooth_face = target
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else:
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self.smooth_face = tuple(int(self.smooth_face[i]*0.8 + target[i]*0.2) for i in range(4))
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else:
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self.smooth_face = None
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if emergency_stop:
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self.status = "EMERGENCY STOP"
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return (0, 0, 0, 0), self.status
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# Obstacle Avoidance (always active if flying)
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center_blocked = zones["CENTER"] or tof < Config.OBSTACLE_TOF_CM
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if center_blocked:
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self.status = "AVOIDING OBSTACLE"
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yv = 80 if zone_scores["LEFT"] < zone_scores["RIGHT"] else -80
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fb = -30
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return self._smooth(lr, fb, ud, yv)
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if is_manual:
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self.status = "MANUAL CONTROL"
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lr, fb, m_ud, yv = manual_rc
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if abs(m_ud) > 0: ud = m_ud
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return self._smooth(lr, fb, ud, yv)
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# AI LOGIC
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if is_locked:
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if locked_person is not None:
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# Target is visible -> Normal Pursuit
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self.search_start = time.time()
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self.lost_time = 0
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(x, y, w, h) = locked_person
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center_x = x + w // 2
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err_x = center_x - (Config.WIDTH // 2)
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# Remember which side it was on
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self.last_target_side = 1 if err_x > 0 else -1
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# Rotation (Yaw) - SMOOTHER
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if abs(err_x) > Config.FACE_DEADZONE:
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yv = int(np.clip(Config.YAW_GAIN * err_x, -50, 50))
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# Forward/Backward pursuit - EXTREME SPEED
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alignment_factor = max(0.4, 1.0 - (abs(err_x) / Config.FACE_ROT_ONLY))
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target_fb = int(np.clip(Config.FORWARD_GAIN * (Config.TARGET_PERSON_SIZE - w), -90, 90))
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fb = int(target_fb * alignment_factor)
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self.status = "PURSUIT: EXTREME"
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else:
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# Target is LOST -> Rapid Search logic
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if self.lost_time == 0: self.lost_time = time.time()
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elapsed = time.time() - self.lost_time
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if elapsed < 10.0: # Search longer and faster
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yv = 40 * self.last_target_side
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self.status = f"LOST TARGET: SCANNING {'RIGHT' if self.last_target_side > 0 else 'LEFT'}"
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else:
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self.status = "TARGET LOST: AGGRESSIVE PATROL"
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yv = 30
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elif self.smooth_face is not None:
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# Face found but not locked
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(x, y, w, h) = self.smooth_face
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err_x = (x + w // 2) - (Config.WIDTH // 2)
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if abs(err_x) > Config.FACE_DEADZONE:
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yv = int(np.clip(Config.YAW_GAIN * err_x, -40, 40))
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self.status = "AWAITING LOCK"
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else:
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# Patrol mode - faster
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elapsed = (time.time() - self.search_start) % 6.0
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if elapsed < 2.0:
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self.status = "PATROL: DASH"
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fb = 40
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else:
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self.status = "PATROL: SCAN"
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yv = 30
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return self._smooth(lr, fb, ud, yv)
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def _smooth(self, lr, fb, ud, yv):
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alpha = Config.SMOOTHING_ALPHA
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slr = int(self.last_sent_rc[0] * (1-alpha) + lr * alpha)
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sfb = int(self.last_sent_rc[1] * (1-alpha) + fb * alpha)
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sud = int(self.last_sent_rc[2] * (1-alpha) + ud * alpha)
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syv = int(self.last_sent_rc[3] * (1-alpha) + yv * alpha)
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if abs(slr) < 2: slr = 0
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if abs(sfb) < 2: sfb = 0
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if abs(sud) < 2: sud = 0
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if abs(syv) < 2: syv = 0
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self.last_sent_rc = [slr, sfb, sud, syv]
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return (slr, sfb, sud, syv), self.status
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