admin
37610242bf
Replace implicit randomness with seeded per-NPC RandomNumberGenerator streams so the same seed always produces the same scenario outcome. - Add SimulationClock (RefCounted): explicit fixed-step clock that converts frame delta into simulation ticks while preserving sub-tick remainder; replaces raw _process tick_timer accumulation - Add simulation_seed export (int=1337) to SimulationManager; drive per-NPC RNG streams via seed + npc_id + stream_id derivation (stream 0=init, stream 1=wander) - Add get_wander_offset(npc_id) to SimulationManager so wander targets are deterministic per seed; WorldViewManager calls it instead of local randf_range() - Add get_state_snapshot() and get_state_checksum() to SimulationManager for headless verification and future save/load - Convert SimNPC/SimVillage const DEBUG_LOGS to instance var debug_logs so headless tests can silence output without recompilation - Pass RandomNumberGenerator through SimNPC._init() instead of using global randf_range() for hunger/energy/position/scoring noise - Remove obsolete farm_zone and forest_zone exports from WorldViewManager and their marker/tree scene children from main.tscn; NPC gather tasks use ResourceNode exclusively - Rename TaskZone container to ActivityMarkers in main.tscn and update all scene paths (player, WVM, tests) to match - Add headless deterministic_simulation_test.gd: verifies clock accuracy, same-seed equality, different-seed divergence, and 24-tick scenario checksum without loading main.tscn
53 lines
1.6 KiB
GDScript
53 lines
1.6 KiB
GDScript
extends SceneTree
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var failures: Array[String] = []
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func _initialize() -> void:
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call_deferred("_run")
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func _run() -> void:
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var clock := SimulationClock.new(1.0)
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_check(clock.advance(0.4) == 0, "Clock should not tick before its interval")
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_check(clock.advance(0.6) == 1, "Clock should emit one tick at its interval")
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_check(clock.advance(2.4) == 2, "Clock should preserve remainder across multiple ticks")
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_check(clock.elapsed_ticks == 3, "Clock should track elapsed simulation ticks")
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var first := _run_scenario(424242)
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var second := _run_scenario(424242)
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var different := _run_scenario(424243)
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_check(first == second, "The same seed and commands should produce the same checksum")
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_check(first != different, "A different seed should change the scenario checksum")
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if failures.is_empty():
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print("[TEST] Deterministic simulation passed | checksum=", first)
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quit(0)
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return
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for failure in failures:
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push_error("[TEST] " + failure)
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quit(1)
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func _run_scenario(seed_value: int) -> String:
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var manager: Node = load("res://simulation/SimulationManager.gd").new()
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manager.simulation_seed = seed_value
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manager.debug_logs = false
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root.add_child(manager)
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manager.set_process(false)
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for step in 24:
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manager.simulate_tick()
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for npc in manager.npcs:
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if npc.task_state == SimNPC.TASK_STATE_TRAVELING:
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manager.notify_npc_arrived(npc.id)
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var snapshot: Dictionary = manager.get_state_snapshot()
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snapshot.erase("seed")
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var checksum := JSON.stringify(snapshot).sha256_text()
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manager.free()
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return checksum
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func _check(condition: bool, message: String) -> void:
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if not condition:
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failures.append(message)
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