The greedy move/run/flee/charge descent helpers hardcoded diagonal parity 0,
letting a speed-30 walker cover 6 diagonal cells (cell-count budget). Under
5-10-5 (SRD Movement, Tactical) the same walker covers only 4 cells
(1+2+1+2=6 squares).
Threading the running diagonal count:
- _best_move_step / _best_flee_step: accept diagonals_used param
- _descend_path / _run_line_path / _flee_path: track and pass parity
- _charge_end: use _path_cost_5105() instead of len(path) for max check
- _path_cost_5105: new helper; computes total 5-10-5 cost of any path
Updated golden paths in test_aoo_limit_one_per_round (5-cell path now
takes an orthogonal detour to avoid expensive 2nd diagonal), test_run_*
(speed-30 diagonal move stops at 4 cells), and staggered_withdraw
(single-speed diagonal withdraw stops at 4 cells).
SRD Full-Round Actions - Run: 'you can move up to four times your speed in a straight line'. _execute_run reused the Dijkstra move machinery, so it turned corners around walls. It now walks the straight Bresenham line (_run_line_path) and stops at the first obstacle (impassable terrain, difficult terrain, or a blocking creature), mirroring the charge clear-path logic. Keeps the 4x budget, step-by-step AoO provocation, moved_this_turn and the running/Dex-loss flag; a destination the straight line cannot honour is rejected (unreachable_destination).
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
PF1e (CRB Movement): "You can't run or charge across difficult
terrain". _execute_run checked the explicit destination against the full
cost field (which routes through difficult terrain at 2x) but descended
with avoid_difficult=True, so a destination beyond rubble was accepted
(ok=True) yet silently truncated at the obstacle. _destination_reachable
now takes the same avoid_difficult constraint (difficult cells removed
from the field; a destination whose footprint touches difficult terrain is
not a legal run endpoint either), so verdict and path agree. The test that
pinned the old silent-stop-short convention now expects
unreachable_destination; README updated.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
PF1e CRB 'Movement, Position and Distance - Difficult Terrain': 'You
can't run or charge across difficult terrain.' The run action reused the
move machinery (_descend_path), so it crossed rubble at 2x cost within
the 4x budget. The descent now takes an avoid_difficult option that
refuses every step whose footprint would touch a cell with move cost > 1
(the same rejection charge applies in _charge_path_clear); the run
moves up to the obstacle and stops there (deterministic, documented).
Move and charge behavior are unchanged.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
PF1e CRB: running is a full-round action, not a move action. The budget
filter now classifies run as full-round (consumes the standard AND the
move slot), _FULL_ROUND_KINDS includes it for the staggered filter, and
the nauseated filter drops it (run is no longer move-like). The
moved_this_turn/running flags are unchanged; the _execute_run
moved_this_turn early return stays as defense in depth. default_policy
never emits run, so the golden transcripts are untouched.
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
ctan