TRACE · ROUND 1

A benchmark in which language models design roller coasters that RollerCoaster Tycoon 2 builds, tests, and rates.

openrouter_moonshotai_kimi-k3 · 20260728-kimi-k3-design-rerun · round 1 back to model →
events
71
tool calls
29
rejected
1
session
28:22
cost
$1.56
Session trace
  1. 0:08

    I'll start by understanding the available pieces and planning a layout. Let me query the piece geometry first.

  2. 0:08
    piece_geometry28 ms
    {"dir":0}
    {"deltas":[{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":0,"piece":"flat","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":0,"piece":"end_station","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":0,"piece":"begin_station","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":0,"piece":"middle_station","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":16,"piece":"up_25","slope_out":2},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":64,"piece":"up_60","slope_out":4},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":8,"piece":"flat_to_up_25","slope_out":2},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":32,"piece":"up_25_to_up_60","slope_out":4},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":32,"piece":"up_60_to_up_25","slope_out":2},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":8,"piece":"up_25_to_flat","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":-16,"piece":"down_25","slope_out":6},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":-64,"piece":"down_60","slope_out":8},{"bank_out":0,"dir_out":0,"dx… (7397 chars)
  3. 0:08
    get_state102 msrejected
  4. 0:08
    $0.0231
  5. 3:15
    piece_geometry17 ms
    {"dir":1}
    {"deltas":[{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":0,"piece":"flat","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":0,"piece":"end_station","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":0,"piece":"begin_station","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":0,"piece":"middle_station","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":16,"piece":"up_25","slope_out":2},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":64,"piece":"up_60","slope_out":4},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":8,"piece":"flat_to_up_25","slope_out":2},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":32,"piece":"up_25_to_up_60","slope_out":4},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":32,"piece":"up_60_to_up_25","slope_out":2},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":8,"piece":"up_25_to_flat","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":-16,"piece":"down_25","slope_out":6},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":-64,"piece":"down_60","slope_out":8},{"bank_out":0,"dir_out":1,"dx_tiles":0,"d… (7346 chars)
  6. 3:15
    piece_geometry135 ms
    {"dir":2}
    {"deltas":[{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":0,"piece":"flat","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":0,"piece":"end_station","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":0,"piece":"begin_station","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":0,"piece":"middle_station","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":16,"piece":"up_25","slope_out":2},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":64,"piece":"up_60","slope_out":4},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":8,"piece":"flat_to_up_25","slope_out":2},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":32,"piece":"up_25_to_up_60","slope_out":4},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":32,"piece":"up_60_to_up_25","slope_out":2},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":8,"piece":"up_25_to_flat","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":-16,"piece":"down_25","slope_out":6},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":-64,"piece":"down_60","slope_out":8},{"bank_out":0,"dir_out":2,"dx_tiles":1,"d… (7346 chars)
  7. 3:15

    Now let me get the geometry for the other three directions so I can plan a closed circuit precisely.

  8. 3:15
    piece_geometry31 ms
    {"dir":3}
    {"deltas":[{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":0,"piece":"flat","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":0,"piece":"end_station","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":0,"piece":"begin_station","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":0,"piece":"middle_station","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":16,"piece":"up_25","slope_out":2},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":64,"piece":"up_60","slope_out":4},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":8,"piece":"flat_to_up_25","slope_out":2},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":32,"piece":"up_25_to_up_60","slope_out":4},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":32,"piece":"up_60_to_up_25","slope_out":2},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":8,"piece":"up_25_to_flat","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":-16,"piece":"down_25","slope_out":6},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":-64,"piece":"down_60","slope_out":8},{"bank_out":0,"dir_out":3,"dx… (7397 chars)
  9. 3:15
    $0.0998
  10. 12:01

    I have all the geometry I need. Let me plan a compact, original layout west of the lake: **Design: rounded-rectangle twister** (station at (60,40), heading -x) - 3-piece station → chain lift (10× up_25 to z≈176) → 60° first drop - Vertical loop #1 → banked left turn → airtime hill on south leg - Vertical loop #2 + camelback on east leg → banked turn → north leg with camelback + descent to z=0 - Brakes → banked final turn → closes exactly at start (legs balanced: L0=L2=21, L3=L1=12; corners net to zero displacement) Let me start building:OK

  11. 12:01
    new_ride28 ms
    {"dir":0,"ride_type":51,"x":60,"y":40}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":60,"y":40,"z":112},"ride_id":0}
  12. 12:01
    $0.3409
  13. 12:19

    The ground level is z=112 (relative planning still works — I return to station z). Building batch 1: station + chain lift.

  14. 12:19
    place_pieces33 ms
    {"pieces":["begin_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"}]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":45,"y":40,"z":288},"placed_this_call":15,"total_placed":15}
  15. 12:19
    $0.0321
  16. 12:27

    Lift complete at z=288 as planned. Batch 2: first drop, vertical loop, corner A, south leg airtime hill, corner B.

  17. 12:27
    place_pieces31 ms
    {"pieces":["flat_to_down_60","down_60","down_60_to_flat","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":42,"y":40,"z":176},"placed_this_call":3,"rejection":{"error":"piece enters at 25-up slope but the track here is flat; add a slope transition piece first","index":3,"piece":"left_vertical_loop"},"total_placed":18}
  18. 12:27
    $0.0298
  19. 17:02

    The vertical loop needs to be entered on a 25° up-slope. I'll add a `flat_to_up_25` before each loop and adjust leg lengths to keep closure (L0/L2 become 22). Continuing with the corrected batch 2:

  20. 17:02
    place_pieces36 ms
    {"pieces":["flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":39,"y":20,"z":176},"placed_this_call":21,"total_placed":39}
  21. 17:02
    $0.0670
  22. 17:11
    place_pieces20 ms
    {"pieces":["flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":1,"slope":0,"x":64,"y":25,"z":176},"placed_this_call":24,"total_placed":63}
  23. 17:11

    Batch 3: east leg with vertical loop #2, camelback, 13 flats, and corner C.

  24. 17:11
    $0.1440
  25. 17:16
    place_pieces24 ms
    {"pieces":["flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat_to_down_25","down_25","down_25","down_25","down_25_to_flat",{"speed":12,"t":"brakes"},"flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":60,"y":40,"z":112},"placed_this_call":15,"total_placed":78}
  26. 17:16

    On plan at (64,25). Final batch: north leg camelback, descent to station level, brakes, and the closing corner D.

  27. 17:16
    $0.0205
  28. 17:21

    Circuit closed exactly at (60,40,z112). Testing now to bank a score.

  29. 17:21
    finish_and_test170 ms
    {"bounds":{"max_tile_x":64,"max_tile_y":40,"max_z":344,"min_tile_x":35,"min_tile_y":20,"min_z":112},"placed_pieces":["begin_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat"… (2119 chars)
  30. 17:21
    $0.0385
  31. 17:35

    The circuit is complete but the test didn't finish in the default ticks (ratings are null). Let me re-test with a longer simulation.

  32. 17:36
    finish_and_test352 ms
    {"ticks":80000}
    {"bounds":{"max_tile_x":64,"max_tile_y":40,"max_z":344,"min_tile_x":35,"min_tile_y":20,"min_z":112},"placed_pieces":["begin_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat"… (2122 chars)
  33. 17:36
    $0.0278
  34. 18:39

    Ratings are still null and stats look like sentinels (the train may not be completing a lap). Let me look at the park and check state.

  35. 18:39
    get_state566 ms
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":60,"y":40,"z":112},"finalized":true,"pieces_placed":78,"placed_pieces":["begin_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25… (1478 chars)
  36. 18:41
    screenshot2254 ms
  37. 18:41
    $0.0523
  38. 19:41

    The layout looks right, but the test isn't completing — the train is likely stuck or valleyed somewhere. Let me try a much longer simulation first.

  39. 19:42
    finish_and_test872 ms
    {"ticks":300000}
    {"bounds":{"max_tile_x":64,"max_tile_y":40,"max_z":344,"min_tile_x":35,"min_tile_y":20,"min_z":112},"placed_pieces":["begin_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat"… (2123 chars)
  40. 19:42
    $0.0652
  41. 21:25

    The train is definitely stuck (stats saturated at sentinel values) — most likely it valleyed at a loop or camelback with marginal energy. The fix: drop all the way to ground level (rel z=0) so the whole course has a huge energy surplus, and remove the final descent. Rebuilding v2:

  42. 21:25
    demolish17 ms
    {"demolished":0}
  43. 21:25
    $0.0800
  44. 21:32
    new_ride18 ms
    {"dir":0,"ride_type":51,"x":60,"y":40}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":60,"y":40,"z":112},"ride_id":0}
  45. 21:33
    $0.0541
  46. 21:42
    place_pieces19 ms
    {"pieces":["begin_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":38,"y":20,"z":112},"placed_this_call":40,"total_placed":40}
  47. 21:42
    $0.0253
  48. 21:55
    place_pieces23 ms
    {"pieces":["flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":1,"slope":0,"x":64,"y":25,"z":112},"placed_this_call":25,"total_placed":65}
  49. 21:55

    First half placed, cursor at (38,20) as planned. Now leg 2 with loop #2 and corner C.

  50. 21:55
    $0.0246
  51. 22:07

    Final leg with camelback, brakes, and closing corner.

  52. 22:07
    place_pieces12 ms
    {"pieces":["flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat",{"speed":12,"t":"brakes"},"flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":60,"y":40,"z":112},"placed_this_call":15,"total_placed":80}
  53. 22:07
    $0.0460
  54. 22:15
    finish_and_test339 ms
    {"ticks":80000}
    {"bounds":{"max_tile_x":64,"max_tile_y":40,"max_z":312,"min_tile_x":34,"min_tile_y":20,"min_z":112},"placed_pieces":["begin_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25",… (2094 chars)
  55. 22:15
    $0.0231
  56. 23:29

    Stats look real now (max lateral 1.14g, positive 4.06g, airtime), but the test still isn't completing. Let me see where the train ends up.

  57. 23:31
    screenshot1946 ms
  58. 23:31
    $0.0556
  59. 26:23

    Now I understand — the train is lapping repeatedly (18 inversions ≈ 9 laps) but overshooting the 3-piece station, so the test never completes. The fix: a longer station (5 pieces) plus stronger braking before the station so the train actually stops. Rebuilding v3:

  60. 26:23
    demolish33 ms
    {"demolished":0}
  61. 26:23
    $0.1189
  62. 26:33
    new_ride16 ms
    {"dir":0,"ride_type":51,"x":60,"y":40}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":60,"y":40,"z":112},"ride_id":0}
  63. 26:33
    $0.0566
  64. 27:18
    place_pieces24 ms
    {"pieces":["begin_station","middle_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":36,"y":20,"z":112},"placed_this_call":42,"total_placed":42}
  65. 27:18
    $0.0589
  66. 27:28
    place_pieces26 ms
    {"pieces":["flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":1,"slope":0,"x":64,"y":25,"z":112},"placed_this_call":27,"total_placed":69}
  67. 27:28
    $0.0258
  68. 28:04
    place_pieces20 ms
    {"pieces":["flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat",{"speed":8,"t":"brakes"},{"speed":8,"t":"brakes"},{"speed":8,"t":"brakes"},"flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat"]}
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":60,"y":40,"z":112},"placed_this_call":15,"total_placed":84}
  69. 28:04
    $0.0267
  70. 28:22
    finish_and_test942 ms
    {"ticks":80000}
    {"bounds":{"max_tile_x":64,"max_tile_y":40,"max_z":312,"min_tile_x":32,"min_tile_y":20,"min_z":112},"placed_pieces":["begin_station","middle_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","up_25_to_flat","flat_to_down_25","down_25_to_flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_left_bank","banked_left_turn_5","left_bank_to_flat","f… (2232 chars)
  71. 28:22
    $0.0235

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