Cover-fit: fit_window_view zooms from the viewport's LARGER dimension, no margin factor (any factor under 1.0 leaves a long-axis gap — checked numerically) — the composite fills edge to edge, overhanging the short axis into pan-space; the refloat center-equality early-return already prevents refetch churn at rest (proved, not just tested). Input model (Jeroen: drag breaks click semantics with map objects): LMB-drag pan REMOVED from the regional window; clicks are object-reserved. Pan = held WASD/arrows polled in _process (delta- and zoom-scaled, camera-pans-toward-key convention verified numerically) plus edge-scroll within 24px of the viewport border; both suppressed over UI and on OS focus loss; both set _user_adjusted; wheel zoom and Esc unchanged. Reads RAW physical keycodes deliberately — independent of the shared D-054 move_* InputMap actions bound to the same keys (whose occlusion-leak is pre-existing and now ticketed as T-1146). Pole wall + east-west wrap unchanged, re-driven through the new inputs; drag tests replaced, not kept. Smoothed composite (interim pending T-1143): per-cell colors bake into an n x n Image/ImageTexture (exact existing colorizer incl. overlay + ice tint) drawn once with LINEAR filtering — GPU bilinear reads as terrain, the planetary heightmap's own treatment. Crisp per-cell path preserved behind COMPOSITE_SMOOTH for T-1143 A/B. Rebuild only on reference-identity change of window/toggle (is_same — verified true reference equality; value-equal distinct dicts DO rebuild). Governance: T-1145 amendment paragraph on D-226 T-1124 SS5 (all three supersessions); pql decisions validate ok. Suites: window_viewer 74/74, window_geometry 32/32, window_overlay (new) 16/16; gdlint clean on all six files. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
268 lines
13 KiB
GDScript
268 lines
13 KiB
GDScript
## T-1142 (Jeroen's second/third hands-on findings): pure-function tests for
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## AtlasWindowViewer's fit-and-center math (fit_window_view) and pole-wall
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## pan clamp (clamp_pan_offset_to_pole_wall) — both extracted specifically so
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## the "viewport + n -> zoom/offset" transform is unit-testable without a
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## live Control tree.
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class_name TestAtlasWindowGeometry
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extends GdUnitTestSuite
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const AtlasWindowGeometry := preload("res://ui/implant/apps/atlas/atlas_window_geometry.gd")
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const AtlasDescendGeometry := preload("res://ui/implant/apps/atlas/atlas_descend_geometry.gd")
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const MIN_ZOOM: float = 0.5
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const MAX_ZOOM: float = 8.0
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const CELL_PIXEL_SIZE: float = 16.0
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# =============================================================================
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# fit_window_view — the "postage stamp" fix (item 2)
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# =============================================================================
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## n=32, cell_px=16 -> native composite is 512x512. T-1145 item 1: COVER
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## fit derives zoom from the LARGER viewport dimension (1920, not 1080) with
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## NO margin factor — zoom = 1920 / 512 = 3.75 — well inside [MIN_ZOOM,
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## MAX_ZOOM], so the clamp is a no-op here.
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func test_fit_window_view_computes_expected_zoom_for_a_wide_viewport() -> void:
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var fit: Dictionary = AtlasWindowGeometry.fit_window_view(
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Vector2(1920.0, 1080.0), 32, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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var expected_zoom: float = 1920.0 / 512.0
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assert_float(fit["zoom"]).is_equal_approx(expected_zoom, 0.001)
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## The composite must be CENTERED — offset.x/.y each leave an equal margin on
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## both sides of the (n*cell_px*zoom)-sized composite (a NEGATIVE "margin" is
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## fine and expected under cover — it just means the composite overhangs
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## that axis, checked separately by test_fit_window_view_covers_with_no_gap).
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func test_fit_window_view_centers_the_composite() -> void:
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var viewport := Vector2(1920.0, 1080.0)
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var fit: Dictionary = AtlasWindowGeometry.fit_window_view(
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viewport, 32, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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var composite_scaled: float = 32.0 * CELL_PIXEL_SIZE * float(fit["zoom"])
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var offset: Vector2 = fit["offset"]
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# The composite's right/bottom edge is offset + composite_scaled — the
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# margin on the far side must equal the margin on the near side (offset).
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var right_margin: float = viewport.x - (offset.x + composite_scaled)
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var bottom_margin: float = viewport.y - (offset.y + composite_scaled)
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assert_float(right_margin).is_equal_approx(offset.x, 0.01)
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assert_float(bottom_margin).is_equal_approx(offset.y, 0.01)
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## T-1145 item 1 (Jeroen's round-2 finding, KALLAST window): a wide viewport
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## must show NO side margins — the composite's LONG axis (the one the cover
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## zoom is derived from) must land EXACTLY at the viewport edges (offset ~=
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## 0 on that axis), and the SHORT axis must OVERHANG past both edges
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## (negative margin — the composite is bigger than the viewport there,
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## exactly what "cover" means). This is the literal assertion the coordinator
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## asked for: no side margins at 16:9.
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func test_fit_window_view_covers_with_no_gap_on_the_long_axis() -> void:
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var viewport := Vector2(1920.0, 1080.0)
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var fit: Dictionary = AtlasWindowGeometry.fit_window_view(
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viewport, 32, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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var composite_scaled: float = 32.0 * CELL_PIXEL_SIZE * float(fit["zoom"])
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var offset: Vector2 = fit["offset"]
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# Long axis (X, 1920 > 1080): the composite must span EXACTLY the
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# viewport width — zero margin on both sides.
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assert_float(offset.x).override_failure_message(
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"the long (cover) axis must have NO side margin — offset.x should be ~0"
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).is_equal_approx(0.0, 0.5)
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var right_margin: float = viewport.x - (offset.x + composite_scaled)
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assert_float(right_margin).override_failure_message(
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"the long (cover) axis's far edge must have NO margin either"
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).is_equal_approx(0.0, 0.5)
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# Short axis (Y, 1080 < 1920): the composite must OVERHANG (negative
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# margin) past BOTH edges — this is the data that extends into pan-space.
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assert_float(offset.y).override_failure_message(
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"the short axis must OVERHANG past the top edge (negative offset)"
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).is_less(0.0)
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## A TALL viewport (portrait) must cover the same way, just with the axes
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## swapped — long axis (Y) gets zero margin, short axis (X) overhangs.
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func test_fit_window_view_covers_a_tall_viewport_too() -> void:
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var viewport := Vector2(1080.0, 1920.0)
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var fit: Dictionary = AtlasWindowGeometry.fit_window_view(
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viewport, 32, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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var offset: Vector2 = fit["offset"]
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assert_float(offset.y).override_failure_message(
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"the long (cover) axis (Y, portrait) must have NO side margin"
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).is_equal_approx(0.0, 0.5)
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assert_float(offset.x).override_failure_message(
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"the short axis (X, portrait) must overhang past the left edge"
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).is_less(0.0)
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## A perfectly square viewport needs NO overhang on either axis — cover and
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## contain agree exactly at a 1:1 aspect ratio (the degenerate case where
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## "long" and "short" axis are the same).
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func test_fit_window_view_square_viewport_has_no_overhang_either_axis() -> void:
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var fit: Dictionary = AtlasWindowGeometry.fit_window_view(
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Vector2(1024.0, 1024.0), 32, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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assert_vector(fit["offset"]).is_equal_approx(Vector2.ZERO, Vector2(0.5, 0.5))
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## Jeroen's exact bug: an n=32 composite (512px native) in a real ~1920px
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## viewport must NOT render at zoom=1.0 (the old, unfitted "postage stamp"
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## behavior) — the fit must scale it up to fill (now: COVER) the viewport.
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func test_fit_window_view_scales_up_a_small_composite_to_fill_the_viewport() -> void:
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var fit: Dictionary = AtlasWindowGeometry.fit_window_view(
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Vector2(1920.0, 1080.0), 32, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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assert_float(fit["zoom"]).override_failure_message(
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"a 512px composite in a 1920x1080 viewport must be scaled UP, not left at 1.0"
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).is_greater(1.0)
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## A huge n (e.g. n=64 at a tiny viewport) must clamp to MIN_ZOOM, never
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## shrink the composite into illegibility below the floor.
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func test_fit_window_view_clamps_to_min_zoom_for_a_tiny_viewport() -> void:
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var fit: Dictionary = AtlasWindowGeometry.fit_window_view(
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Vector2(200.0, 150.0), 64, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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assert_float(fit["zoom"]).is_equal_approx(MIN_ZOOM, 0.001)
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## A small n (e.g. n=2) at a huge viewport must clamp to MAX_ZOOM, never
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## scale past the ceiling.
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func test_fit_window_view_clamps_to_max_zoom_for_a_tiny_composite() -> void:
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var fit: Dictionary = AtlasWindowGeometry.fit_window_view(
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Vector2(3840.0, 2160.0), 2, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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assert_float(fit["zoom"]).is_equal_approx(MAX_ZOOM, 0.001)
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## Degenerate inputs (zero viewport, zero n) must not divide by zero — a safe
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## fallback (zoom=1.0, offset=ZERO), never a crash or NaN.
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func test_fit_window_view_degenerate_inputs_are_safe() -> void:
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var fit_zero_viewport: Dictionary = AtlasWindowGeometry.fit_window_view(
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Vector2.ZERO, 32, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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assert_float(fit_zero_viewport["zoom"]).is_equal_approx(1.0, 0.001)
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var fit_zero_n: Dictionary = AtlasWindowGeometry.fit_window_view(
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Vector2(1920.0, 1080.0), 0, CELL_PIXEL_SIZE, MIN_ZOOM, MAX_ZOOM
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)
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assert_float(fit_zero_n["zoom"]).is_equal_approx(1.0, 0.001)
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# =============================================================================
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# clamp_pan_offset_to_pole_wall — item 5 (pole hard wall, row axis only)
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# =============================================================================
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## Deep inside the valid range (window nowhere near a pole), the clamp must
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## be a no-op — offset passes through unchanged.
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func test_pole_wall_clamp_is_a_noop_far_from_the_poles() -> void:
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var offset := Vector2(10.0, 20.0)
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var clamped: Vector2 = AtlasWindowGeometry.clamp_pan_offset_to_pole_wall(
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offset, Vector2(1920.0, 1080.0), Vector2i(0, 0), 32, 4785, CELL_PIXEL_SIZE, 1.0
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)
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assert_that(clamped).is_equal(offset)
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## X is NEVER clamped by the pole wall (item 6: east-west is seamless) — even
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## an absurdly large X offset passes through untouched.
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func test_pole_wall_clamp_never_touches_x() -> void:
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var offset := Vector2(999999.0, 0.0)
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var clamped: Vector2 = AtlasWindowGeometry.clamp_pan_offset_to_pole_wall(
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offset, Vector2(1920.0, 1080.0), Vector2i(0, 0), 32, 4785, CELL_PIXEL_SIZE, 1.0
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)
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assert_float(clamped.x).is_equal_approx(999999.0, 0.001)
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## The core pole-wall behavior: dragging FAR past the north pole (offset.y
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## driven to an extreme) must clamp — the resulting offset must be LESS than
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## the extreme requested, and a SECOND, even-more-extreme drag must produce
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## the SAME clamped value (further dragging is inert once pinned at the wall).
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func test_pole_wall_clamp_pins_offset_when_dragged_past_the_pole() -> void:
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var rows_half := 100
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var held_center := Vector2i(0, 90) # near the south pole already (row 90 of 100)
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var extreme_offset := Vector2(0.0, 5000.0) # a huge downward drag
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var clamped: Vector2 = AtlasWindowGeometry.clamp_pan_offset_to_pole_wall(
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extreme_offset, Vector2(800.0, 800.0), held_center, 32, rows_half, CELL_PIXEL_SIZE, 1.0
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)
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assert_float(clamped.y).override_failure_message(
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"an extreme drag toward the pole must be clamped, not pass through"
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).is_less(extreme_offset.y)
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var even_more_extreme := Vector2(0.0, 50000.0)
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var clamped_again: Vector2 = AtlasWindowGeometry.clamp_pan_offset_to_pole_wall(
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even_more_extreme, Vector2(800.0, 800.0), held_center, 32, rows_half, CELL_PIXEL_SIZE, 1.0
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)
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assert_float(clamped_again.y).override_failure_message(
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"further dragging past an already-pinned wall must be inert (same clamped value)"
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).is_equal_approx(clamped.y, 0.01)
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## Symmetric check on the north side: a huge UPWARD drag near the north pole
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## also clamps.
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func test_pole_wall_clamp_pins_offset_on_the_north_side_too() -> void:
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var rows_half := 100
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var held_center := Vector2i(0, -90) # near the north pole
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var extreme_offset := Vector2(0.0, -5000.0) # a huge upward drag
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var clamped: Vector2 = AtlasWindowGeometry.clamp_pan_offset_to_pole_wall(
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extreme_offset, Vector2(800.0, 800.0), held_center, 32, rows_half, CELL_PIXEL_SIZE, 1.0
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)
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assert_float(clamped.y).override_failure_message(
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"an extreme drag toward the north pole must be clamped"
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).is_greater(extreme_offset.y)
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## rows_half <= 0 (a no-radius body, or a degenerate district_extent()) means
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## "no wall concept" — the clamp is a no-op, matching
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## canonicalize_district_center()'s own no-radius identity disposition.
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func test_pole_wall_clamp_is_noop_when_rows_half_is_zero() -> void:
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var offset := Vector2(0.0, 999999.0)
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var clamped: Vector2 = AtlasWindowGeometry.clamp_pan_offset_to_pole_wall(
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offset, Vector2(800.0, 800.0), Vector2i(0, 0), 32, 0, CELL_PIXEL_SIZE, 1.0
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)
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assert_that(clamped).is_equal(offset)
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## Tiny-body edge case (documented open item in atlas_window_viewer.gd's own
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## _clamp_offset_to_pole_wall doc): a window TALLER than the whole planet's
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## row span (n=64 window, rows_half=10 -> pole-to-pole is only 20 districts)
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## must not crash or produce an inverted/degenerate clamp range — the offset
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## still comes back as a finite Vector2, and repeated extreme drags still
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## converge to a stable pinned value (not NaN, not unbounded).
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func test_pole_wall_clamp_handles_a_window_taller_than_the_planet() -> void:
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var rows_half := 10
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var held_n := 64
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var held_center := Vector2i(0, 0)
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var clamped: Vector2 = AtlasWindowGeometry.clamp_pan_offset_to_pole_wall(
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Vector2(0.0, 999999.0), Vector2(800.0, 800.0), held_center, held_n, rows_half,
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CELL_PIXEL_SIZE, 1.0
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)
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assert_bool(is_finite(clamped.y)).override_failure_message(
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"a window taller than the planet's row span must still produce a finite clamp"
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).is_true()
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var clamped_again: Vector2 = AtlasWindowGeometry.clamp_pan_offset_to_pole_wall(
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Vector2(0.0, 9999999.0), Vector2(800.0, 800.0), held_center, held_n, rows_half,
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CELL_PIXEL_SIZE, 1.0
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)
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assert_float(clamped_again.y).is_equal_approx(clamped.y, 0.01)
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# =============================================================================
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# Cross-check: clamp bounds derived from district_extent() (the SAME source
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# canonicalize_district_center() uses) — confirms the two T-1142 fixes (item
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# 5 pole wall, item 6a wrap/clamp) agree on what "the pole" even is.
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# =============================================================================
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func test_pole_wall_rows_half_matches_canonicalize_rows_half() -> void:
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var radius_km := 6238.4 # GJ380c
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var extent: Dictionary = AtlasDescendGeometry.district_extent(radius_km)
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var rows_half: int = int(extent["rows_half"])
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# A center exactly at (0, rows_half) must canonicalize to itself (already
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# at the pole boundary, not past it) — pins that the SAME rows_half both
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# fixes consume describes an inclusive boundary, not an exclusive one.
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var canonical: Vector2i = AtlasDescendGeometry.canonicalize_district_center(
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Vector2i(0, rows_half), radius_km
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)
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assert_int(canonical.y).is_equal(rows_half)
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