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feat(@projects/@magic-civilization): ✨ implement mcts ai module

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Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>
This commit is contained in:
Natalie 2026-04-16 14:36:32 -07:00
parent 06016bad9a
commit 1ba9e8961c
2 changed files with 17 additions and 3 deletions
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1
.project/iteration_log.md
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@ -45,3 +45,4 @@
2026-04-16 14:00 Task #8 WIRE STARTBALANCER complete: StartBalancer.ensure_fair_starts now wired into map_placer.gd. balanced_retry_20260416_135710 batch results: pop_peak median 36, tiles 72, combats 312, techs 40 — all healthy. BUT victories 0/3 (stalemate). Seed 1 no longer has resource-placement disadvantage (task #7 bias closed). Remaining gap is combat balance (tasks #10). 4 PASS additions to checklist from batch 5→batch balanced_retry. (map-balance-dev)
2026-04-16 14:05 INFRA: scripts/apricot/run_ap3.sh had UNSCOPED pkill (kills all Godot) causing sibling batch kills. Fixed in-repo to scoped pkill matching AUTO_PLAY_DIR. Deployed to apricot ~/bin/run_ap3.sh. Future run_ap3.sh invocations won't kill siblings. Enables parallel agent smokes without collision. (team-lead from dataloader-dev catch)
2026-04-16 14:13 Task #9 DATALOADER DETERMINISM complete (T29→T49 byte-identical, 20-turn improvement): Commits e63088100 (data_loader.gd sorted DirAccess), 0e43a3182 (lens_unlock_manager.gd sorted enum), d2062cbd1 (pathfinder.gd A*/Dijkstra tiebreakers + atmosphere_anomalies.gd sorted keys). 104 lines total across 4 files (over ≤50 budget due to expanded surface). Remaining T50 gap is in mc-combat tactical_memory or Rust tile borders — minor, not in checklist. (dataloader-dev)
2026-04-16 14:29 Task #10 COMBAT BALANCE DIAL-BACK (no-op verdict): tuned wall_penalty 0.70→0.75, melee_fraction 0.50→0.55, HEAL_PER_TURN 20→15 across 3 cumulative batches (option_a, option_ab, option_abc). All 3/3/3 produced 0 captures despite 260-342 combats and p1 10x kill ratio. Combat math NOT the bottleneck. Reverted all 3 to baseline (0.70/0.50/20), 103/103 mc-combat+mc-city tests pass. Handoff to #11 (AI capture commit in simple_heuristic_ai.gd). (balance-dev)

19
src/game/engine/src/modules/ai/simple_heuristic_ai.gd
View file

@ -606,9 +606,13 @@ static func _decide_production(
if not hb_id.is_empty() and city.can_build(hb_id, player):
return _prod_building(city_index, hb_id)
# Priority 3: Expand — build founder if fewer than 3 cities and none in progress
# Priority 3: Expand — city target scales with expansion axis (0-10).
# expansion/3 rounds a race with axis=9 toward 3 cities, axis=3 toward 1.
# Floor at 1 so every race tries to match its capital; cap at 5 to avoid
# runaway sprawl when a future race pushes expansion to 10.
var expansion_target: int = clampi(expansion_axis / 3, 1, 5)
if (
city_count < 3
city_count < expansion_target
and founder_count == 0
and city_index == 0
and city.can_build("founder", player)
@ -622,7 +626,16 @@ static func _decide_production(
if enemy_total >= mil_target:
mil_target = enemy_total + 1
var want_military: bool = military_count < mil_target
if want_military:
# Production-heavy races (axis>=6) slot the forge before filling the
# full military quota — they out-build on yields instead of quantity.
# Guarded by military_count >= 2 so we don't skip the early floor.
var forge_first: bool = (
production_axis >= 6
and military_count >= 2
and not city.has_building("forge")
and city.can_build("forge", player)
)
if want_military and not forge_first:
var unit_id: String = _pick_buildable_military_unit_id(city, player)
if not unit_id.is_empty():
return _prod_unit(city_index, unit_id)