"""Visual smoke for trajectory arrows + pulsation."""
import sys, time
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parents[2]))

from tools.automation.harness import Harness


def main():
    with Harness.launch(run_name="trajectory") as h:
        h.load_mission("campaign_01", 0)
        h.place("Pawn", (0, 1), (1, 1))
        h.place("Pawn", (2, 1), (3, 1))

        # Capture two frames at different phases of the pulse loop
        h.screenshot("01_placed_a")
        time.sleep(0.8)
        h.screenshot("02_placed_b_pulse")
        print("OK — trajectories rendered; see screens for arrows + pulse")


if __name__ == "__main__":
    main()