 ctan
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d347dde3fc
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fix(rules): a multi-cell creature moving under mixed terrain pays the difficult rate for its whole footprint - SRD Movement, Position and Distance: 'If you occupy squares with different kinds of terrain, you can move only as fast as the most difficult terrain you occupy will allow'; the charge/run/5-foot-step already gated on the whole footprint (_footprint_touches_difficult) but the move/withdraw DESCENT priced every step by the anchor cell alone (grid.step_cost), so a 2x2 creature straddling rubble crossed at full speed; the descent now prices a step by the most difficult square under the footprint via _footprint_step_cost -> a new grid.step_cost_with_terrain (the 5-10-5 + elevation formula stays centralized in grid.py, step_cost delegates to it); 1x1 creatures are bit-identical (footprint == anchor cell); the direction Dijkstra field remains anchor-priced (making it creature-aware rewrites grid.reachable wholesale - the documented deferral); golden untouched (open-floor arena, no difficult terrain); +7 tests (trailing-square orthogonal/diagonal cost, 1x1 bit-identical regression, full-lane move budget 3-vs-6 squares, withdraw hampering)
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2026-09-20 00:29:36 +02:00 |
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