tests & can charge up thrust
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extends SceneTree
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## Headless logic tests — validates game logic without visuals.
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## Run: godot --headless --script tests/logic_test.gd
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##
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## Exit code 0 = all passed, 1 = any failure.
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var _passed: int = 0
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var _failed: int = 0
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func _init() -> void:
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_run.call_deferred()
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func _run() -> void:
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print("=" .repeat(60))
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print("LOGIC TESTS")
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print("=" .repeat(60))
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test_debug_params_defaults()
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test_debug_params_clamp_values()
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test_debug_params_save_load_cycle()
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test_matador_spawn_positions()
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test_matador_wander_target_in_bounds()
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test_matador_state_transitions()
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test_roll_damping()
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test_velocity_capping()
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test_kick_spread()
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test_gait_phase_crossing()
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test_tail_verlet_constraint()
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print("=" .repeat(60))
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print("Results: %d passed, %d failed" % [_passed, _failed])
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print("=" .repeat(60))
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quit(1 if _failed > 0 else 0)
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# ── Test helpers ──────────────────────────────────────────────────────────────
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func _assert_true(condition: bool, desc: String) -> void:
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if condition:
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_passed += 1
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print(" PASS: %s" % desc)
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else:
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_failed += 1
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print(" FAIL: %s" % desc)
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func _assert_eq(a: Variant, b: Variant, desc: String) -> void:
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_assert_true(a == b, "%s (got %s, expected %s)" % [desc, str(a), str(b)])
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# ── Player physics math ───────────────────────────────────────────────────────
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func test_roll_damping() -> void:
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print("\n-- test_roll_damping --")
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var damping := 0.15 # default roll_damping
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var retain := pow(damping, 1.0 / 60.0)
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# One frame at 60 fps should retain ~96-99% of speed.
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_assert_in_range(retain, 0.90, 0.999, "single-frame retain factor is reasonable")
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# After exactly 1 s, speed should equal starting_speed * damping (pow identity).
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# With damping=0.15: pow(0.15, 1/60)^60 = 0.15, so 30 × 0.15 = 4.5.
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var speed := 30.0
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for _i: int in 60:
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speed *= pow(damping, 1.0 / 60.0)
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var expected := 30.0 * damping
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_assert_in_range(speed, expected * 0.95, expected * 1.05,
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"speed after 1 s equals starting_speed × damping (±5%%)")
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# Lower damping value damps more aggressively per frame.
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var fast_retain := pow(0.01, 1.0 / 60.0)
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_assert_true(fast_retain < retain, "damping=0.01 retains less per frame than damping=0.15")
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func test_velocity_capping() -> void:
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print("\n-- test_velocity_capping --")
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var max_speed := 30.0
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var impulse := 18.0
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# Thrust from rest: should never exceed max_speed.
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var vel := Vector3.ZERO
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vel.x += impulse
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var flat := Vector2(vel.x, vel.z)
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if flat.length() > max_speed:
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vel.x *= max_speed / flat.length()
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vel.z *= max_speed / flat.length()
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_assert_in_range(Vector2(vel.x, vel.z).length(), 0.0, max_speed + 0.001,
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"thrust from rest: capped at max_speed")
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# Thrust while already at max_speed: still capped.
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vel = Vector3(max_speed, 0.0, 0.0)
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vel.x += impulse
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flat = Vector2(vel.x, vel.z)
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if flat.length() > max_speed:
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vel.x *= max_speed / flat.length()
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vel.z *= max_speed / flat.length()
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_assert_in_range(Vector2(vel.x, vel.z).length(), 0.0, max_speed + 0.001,
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"thrust from max_speed: still capped at max_speed")
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func test_kick_spread() -> void:
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print("\n-- test_kick_spread --")
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var max_deg := 10.0 # default kick_spread
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var forward := Vector3.FORWARD
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for _i: int in 100:
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var spread := deg_to_rad(randf_range(-max_deg, max_deg))
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var kick_dir := forward.rotated(Vector3.UP, spread)
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var angle_deg := rad_to_deg(forward.angle_to(kick_dir))
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_assert_in_range(angle_deg, 0.0, max_deg + 0.01,
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"kick direction stays within spread cone")
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func test_gait_phase_crossing() -> void:
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print("\n-- test_gait_phase_crossing --")
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# Wrap-around: phase 0.95 should be crossed when advancing from 0.9 → 0.1.
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_assert_true(_gait_phase_crossed(0.9, 0.1, 0.95),
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"wrap-around: 0.95 crossed from 0.9 to 0.1")
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# Normal advance: phase 0.05 is crossed from 0.0 → 0.1.
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_assert_true(_gait_phase_crossed(0.0, 0.1, 0.05),
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"normal: 0.05 crossed from 0.0 to 0.1")
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# Not crossed: target outside window.
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_assert_true(not _gait_phase_crossed(0.0, 0.1, 0.15),
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"not crossed: 0.15 outside window 0.0–0.1")
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_assert_true(not _gait_phase_crossed(0.9, 0.1, 0.5),
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"not crossed: 0.5 not in wrap range 0.9–>0.1")
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# All four leg phase offsets must be in [0, 1) and distinct.
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var phases := [0.0, 0.2, 0.5, 0.7] # LEG_PHASES values from bull_legs.gd
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var seen := {}
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for p: float in phases:
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_assert_in_range(p, 0.0, 0.9999, "leg phase in [0, 1)")
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_assert_true(not seen.has(p), "leg phase %.2f is unique" % p)
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seen[p] = true
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func _gait_phase_crossed(prev: float, curr: float, target: float) -> bool:
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if curr >= prev:
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return target >= prev and target < curr
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else:
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return target >= prev or target < curr
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func test_tail_verlet_constraint() -> void:
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print("\n-- test_tail_verlet_constraint --")
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var target_len := 0.3
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# Constraint should snap an over-extended segment to exactly target_len.
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var a := Vector3.ZERO
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var b := Vector3(5.0, 0.0, 0.0)
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var dir := b - a
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var result: Vector3 = a + dir * (target_len / dir.length())
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_assert_in_range(result.distance_to(a), target_len - 0.001, target_len + 0.001,
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"Verlet constraint enforces exact segment length")
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# Near-zero distance: code takes else branch — fallback should also be target_len.
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var b_near := Vector3(0.00005, 0.0, 0.0)
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var dir_near := b_near - a
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var fallback: Vector3
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if dir_near.length() > 0.0001:
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fallback = a + dir_near * (target_len / dir_near.length())
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else:
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fallback = a + Vector3(0.0, -target_len, 0.0)
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_assert_in_range(fallback.distance_to(a), target_len - 0.001, target_len + 0.001,
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"Verlet fallback (near-zero) preserves segment length")
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# Damping formula: velocity carries ~90-100% of a normal segment per step.
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var damping_factor := 1.0 - clampf(0.08, 0.0, 0.99) # default tail_damping
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_assert_in_range(damping_factor, 0.85, 1.0, "tail damping factor is reasonable")
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# ── Shared helpers ────────────────────────────────────────────────────────────
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func _assert_in_range(val: float, lo: float, hi: float, desc: String) -> void:
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_assert_true(val >= lo and val <= hi,
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"%s (got %.4f, expected [%.4f, %.4f])" % [desc, val, lo, hi])
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# ── Debug params tests ───────────────────────────────────────────────────────
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func test_debug_params_defaults() -> void:
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print("\n-- test_debug_params_defaults --")
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var dp: Node = root.get_node_or_null("/root/DP")
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if dp == null:
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_assert_true(false, "DP autoload should exist")
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return
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_assert_in_range(dp.f("mat_walk_speed"), 0.5, 10.0,
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"mat_walk_speed default in valid range")
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_assert_in_range(dp.f("mat_wander_radius"), 5.0, 50.0,
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"mat_wander_radius default in valid range")
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_assert_in_range(dp.f("mat_spawn_count"), 1.0, 30.0,
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"mat_spawn_count default in valid range")
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_assert_in_range(dp.f("mat_hit_threshold"), 1.0, 30.0,
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"mat_hit_threshold default in valid range")
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_assert_in_range(dp.f("mat_ragdoll_impulse"), 1.0, 50.0,
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"mat_ragdoll_impulse default in valid range")
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_assert_in_range(dp.f("mat_idle_min"), 0.0, 5.0,
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"mat_idle_min default in valid range")
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_assert_in_range(dp.f("mat_idle_max"), 0.5, 10.0,
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"mat_idle_max default in valid range")
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_assert_true(dp.f("mat_idle_min") <= dp.f("mat_idle_max"),
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"mat_idle_min <= mat_idle_max")
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func test_debug_params_clamp_values() -> void:
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print("\n-- test_debug_params_clamp_values --")
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var dp: Node = root.get_node_or_null("/root/DP")
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if dp == null:
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_assert_true(false, "DP autoload should exist")
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return
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var all_params: Dictionary = dp.get_all()
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for key: String in all_params:
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var p: Dictionary = all_params[key]
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if p["type"] == TYPE_FLOAT:
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var val: float = p["value"] as float
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_assert_in_range(val, p["min"] as float, p["max"] as float,
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"param '%s' value within [min, max]" % key)
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func test_debug_params_save_load_cycle() -> void:
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print("\n-- test_debug_params_save_load_cycle --")
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var dp: Node = root.get_node_or_null("/root/DP")
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if dp == null:
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_assert_true(false, "DP autoload should exist")
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return
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var original: float = dp.f("mat_walk_speed")
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dp.set_value("mat_walk_speed", 7.77)
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_assert_eq(dp.f("mat_walk_speed"), 7.77, "set_value updates immediately")
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dp.set_value("mat_walk_speed", original)
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_assert_eq(dp.f("mat_walk_speed"), original, "restore original value")
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func test_matador_spawn_positions() -> void:
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print("\n-- test_matador_spawn_positions --")
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var dp: Node = root.get_node_or_null("/root/DP")
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if dp == null:
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_assert_true(false, "DP autoload should exist")
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return
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var radius: float = dp.f("mat_wander_radius")
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# Simulate the spawn logic from matador_spawn.gd
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for i: int in 50:
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var angle := randf() * TAU
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var dist := randf_range(6.0, radius)
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var pos := Vector3(cos(angle) * dist, 1.0, sin(angle) * dist)
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var horiz_dist := Vector2(pos.x, pos.z).length()
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_assert_in_range(horiz_dist, 5.0, radius + 1.0,
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"spawn %d horizontal dist within bounds" % i)
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_assert_eq(pos.y, 1.0, "spawn %d Y position is 1.0" % i)
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func test_matador_wander_target_in_bounds() -> void:
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print("\n-- test_matador_wander_target_in_bounds --")
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var dp: Node = root.get_node_or_null("/root/DP")
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if dp == null:
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_assert_true(false, "DP autoload should exist")
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return
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var radius: float = dp.f("mat_wander_radius")
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# Simulate _pick_wander_target logic from matador.gd
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for i: int in 100:
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var angle := randf() * TAU
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var dist := randf_range(2.0, radius)
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var target := Vector3(cos(angle) * dist, 0.0, sin(angle) * dist)
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var horiz_dist := Vector2(target.x, target.z).length()
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_assert_in_range(horiz_dist, 1.0, radius + 1.0,
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"wander target %d within radius" % i)
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func test_matador_state_transitions() -> void:
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print("\n-- test_matador_state_transitions --")
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# Verify that the State enum values match expected constants
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# Load the matador scene to check its script
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var matador_scene := load("res://Matador.tscn")
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if matador_scene == null:
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_assert_true(false, "Matador.tscn should load")
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return
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_assert_true(true, "Matador.tscn loads successfully")
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var matador: Node = matador_scene.instantiate()
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_assert_true(matador is CharacterBody3D,
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"Matador root is CharacterBody3D")
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_assert_true(matador.has_method("_physics_process"),
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"Matador has _physics_process")
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_assert_true(matador.has_method("_ready"),
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"Matador has _ready")
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# Check initial state
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_assert_eq(matador._state, 0, "initial state is WANDER (0)")
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matador.free()
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