test(sites): geometric contract and integration checks for the terrain showcase
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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OlivierandClaude Fable 5.1 committed
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@@ -13,19 +13,37 @@ const DiveAccessibilityAdjustments = preload(
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const DiveRulesResolver = preload("res://game/domain/rules/dive_rules_resolver.gd")
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const SITE_PATH := "res://content/sites/zone1_vigilant.tres"
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const SHOWCASE_PATH := "res://content/sites/terrain_showcase.tres"
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# Showcase probe positions (docs/briefs/terrain-varied-landforms.md §5). The canyon
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# transect crosses its first leg at right angles; the crevasse transect is the
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# z = -120 row between the two buttes.
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const SHOWCASE_MESA_TOP := Vector2(-80.0, -90.0)
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const SHOWCASE_CANYON_MID := Vector2(-130.0, -135.0)
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const SHOWCASE_CANYON_AXIS := Vector2(40.0, -30.0)
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const SHOWCASE_CREVASSE_ROW_Z := -120.0
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const SHOWCASE_CREVASSE_SHELF_X := 118.0
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const SHOWCASE_CREVASSE_FLOOR_X := 124.0
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const SHOWCASE_BOULDER_FIELD_CENTRE := Vector2(-120.0, 110.0)
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const SHOWCASE_BOULDER_FIELD_RADIUS_M := 75.0
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const SHOWCASE_WEST_SPUR := Vector2(80.0, 120.0)
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const SHOWCASE_CHANNEL := Vector2(125.0, 120.0)
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const SHOWCASE_EAST_SPUR := Vector2(170.0, 125.0)
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const STEEP_WALL_RISE_PER_M := 1.7 # tan(60 degrees)
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const LEDGE_RISE_PER_M := 0.35
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const ROUTE_CLEARANCE_M := 3.0
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const MINIMUM_LANDMARK_SPACING_M := 60.0
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const MAXIMUM_ANCHOR_TO_WRECK_M := 320.0
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const MAXIMUM_WRECK_SPACING_M := 260.0
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const HULL_HALF_LENGTH_M := 14.0
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const HULL_SEABED_TOLERANCE_M := 2.0
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const TEST_COUNT := 34
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const TEST_COUNT := 52
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var _failures: Array[String] = []
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func _init() -> void:
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_test_zone1_content()
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_test_showcase_content()
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if _failures.is_empty():
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print("Site content contract tests: %d passed, 0 failed." % TEST_COUNT)
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@@ -132,6 +150,96 @@ func _test_zone1_content() -> void:
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_expect(_hull_lies_along_seabed(field, targets[0]), "the target hull lies along the groove floor")
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func _test_showcase_content() -> void:
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var definition := load(SHOWCASE_PATH) as DiveSiteDefinition
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_expect(definition != null, "showcase definition loads")
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if definition == null:
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return
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_expect(definition.validation_error().is_empty(), "showcase definition is valid: %s" % definition.validation_error())
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var field := definition.height_field()
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if field == null:
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return
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_expect(field.cell_size_m() == 1.0 and field.columns() == 513 and field.rows() == 513, "showcase grid is 513 x 513 cells of 1 m")
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_expect(definition.playable_bounds_m.is_equal_approx(Rect2(-220.0, -220.0, 440.0, 440.0)), "showcase playable zone is 440 x 440 m")
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_expect(field.minimum_elevation_m() >= -80.5 and field.maximum_elevation_m() <= -18.5, "showcase terrain stays between 19 m and 80 m deep")
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var anchors := definition.placements_of_kind(SitePlacement.Kind.VESSEL_ANCHOR)
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_expect(anchors.size() == 1 and definition.placements.size() == 1, "showcase has a single placement, the mooring beacon")
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var spawn := definition.spawn_position_m
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_expect(spawn.y - field.elevation_at(spawn.x, spawn.z) >= 10.0, "showcase spawn has at least 10 m of water under the keel")
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# NW: stratified canyon through the mesa.
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var mesa_top := field.elevation_at(SHOWCASE_MESA_TOP.x, SHOWCASE_MESA_TOP.y)
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var canyon_floor := field.elevation_at(SHOWCASE_CANYON_MID.x, SHOWCASE_CANYON_MID.y)
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_expect(mesa_top - canyon_floor >= 18.0, "canyon floor is at least 18 m below the mesa top (%.1f m)" % (mesa_top - canyon_floor))
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var axis := SHOWCASE_CANYON_AXIS.normalized()
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var lowest := INF
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var highest := -INF
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for along in range(-5, 6):
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var point := SHOWCASE_CANYON_MID + axis * float(along)
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var elevation := field.elevation_at(point.x, point.y)
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lowest = minf(lowest, elevation)
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highest = maxf(highest, elevation)
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_expect(highest - lowest <= 1.0, "canyon floor is flat within 1 m over 10 m along the axis")
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var normal := Vector2(-axis.y, axis.x)
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var transect := PackedFloat32Array()
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for offset in range(-30, 31):
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var point := SHOWCASE_CANYON_MID + normal * float(offset)
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transect.append(field.elevation_at(point.x, point.y))
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var steepest := 0.0
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var ledge_pairs := 0
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for index in range(transect.size() - 1):
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var rise := absf(transect[index + 1] - transect[index])
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steepest = maxf(steepest, rise)
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var in_wall := transect[index] > canyon_floor + 1.0 and transect[index] < mesa_top - 1.0
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if in_wall and rise < LEDGE_RISE_PER_M:
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ledge_pairs += 1
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_expect(steepest >= STEEP_WALL_RISE_PER_M, "canyon wall is steeper than 60 degrees somewhere (%.1f m per m)" % steepest)
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_expect(ledge_pairs >= 2, "canyon wall carries at least two ledges (%d flat metres)" % ledge_pairs)
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# NE: crevasse between the buttes.
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var shelf := field.elevation_at(SHOWCASE_CREVASSE_SHELF_X, SHOWCASE_CREVASSE_ROW_Z)
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var crevasse_floor := field.elevation_at(SHOWCASE_CREVASSE_FLOOR_X, SHOWCASE_CREVASSE_ROW_Z)
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_expect(shelf - crevasse_floor >= 16.0, "crevasse floor is at least 16 m below the rim (%.1f m)" % (shelf - crevasse_floor))
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var deep_cells := 0
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for x in range(100, 146):
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if field.elevation_at(float(x), SHOWCASE_CREVASSE_ROW_Z) < shelf - 10.0:
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deep_cells += 1
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_expect(deep_cells >= 3 and deep_cells <= 8, "crevasse is 3 to 8 m wide at 10 m down (%d m)" % deep_cells)
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# SW: boulder field on sand.
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var rock_cells := 0
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var disc_cells := 0
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var radius := int(SHOWCASE_BOULDER_FIELD_RADIUS_M)
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for z in range(-radius, radius + 1):
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for x in range(-radius, radius + 1):
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var point := SHOWCASE_BOULDER_FIELD_CENTRE + Vector2(x, z)
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if point.distance_to(SHOWCASE_BOULDER_FIELD_CENTRE) > SHOWCASE_BOULDER_FIELD_RADIUS_M:
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continue
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disc_cells += 1
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if field.material_at(point.x, point.y) == SonarMaterial.Value.ROCK:
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rock_cells += 1
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var rock_fraction := float(rock_cells) / float(disc_cells)
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_expect(rock_fraction >= 0.25 and rock_fraction <= 0.6, "boulder field is 25 to 60 %% rock (%.0f %%)" % (rock_fraction * 100.0))
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_expect(field.material_at(SHOWCASE_BOULDER_FIELD_CENTRE.x + 100.0, SHOWCASE_BOULDER_FIELD_CENTRE.y) == SonarMaterial.Value.SAND, "the sand plain beside the boulder field is sand")
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# SE: two spurs and a sand channel.
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var west_spur := field.elevation_at(SHOWCASE_WEST_SPUR.x, SHOWCASE_WEST_SPUR.y)
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var east_spur := field.elevation_at(SHOWCASE_EAST_SPUR.x, SHOWCASE_EAST_SPUR.y)
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var channel := field.elevation_at(SHOWCASE_CHANNEL.x, SHOWCASE_CHANNEL.y)
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_expect(west_spur - channel >= 5.0 and east_spur - channel >= 5.0, "the channel runs at least 5 m below both spurs")
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_expect(
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field.material_at(SHOWCASE_WEST_SPUR.x, SHOWCASE_WEST_SPUR.y) == SonarMaterial.Value.ROCK
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and field.material_at(SHOWCASE_EAST_SPUR.x, SHOWCASE_EAST_SPUR.y) == SonarMaterial.Value.ROCK,
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"both spur summits are rock"
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)
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_expect(field.material_at(SHOWCASE_CHANNEL.x, SHOWCASE_CHANNEL.y + 30.0) == SonarMaterial.Value.SAND, "the channel floor is sand")
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# S: escarpment.
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var above := field.elevation_at(0.0, 190.0)
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var below := field.elevation_at(0.0, 250.0)
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_expect(above - below >= 20.0, "the escarpment drops at least 20 m (%.1f m)" % (above - below))
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func _rests_on_terrain(field: TerrainHeightField, placement: SitePlacement) -> bool:
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var seabed := field.elevation_at(placement.position_m.x, placement.position_m.z)
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var bottom := placement.position_m.y - placement.footprint_m.y * 0.5
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