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Show buildings on the world map, and extractors on their planets

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Forgejo #11: buildings the player has placed now appear on the world
map. They are placed freely in space rather than tied to a chunk, so
they get their own pass in WorldMapContent._draw() rather than riding
along with the chunk markers. Each type has its own shape and colour,
mirroring Building.gd's constants so a marker reads as the same
building you built.

Forgejo #9: a planet with an extractor built on it now shows it, in
both places you look at a planet - an amber derrick on its outline in
space, and a matching badge on its world-map marker. The extractor
lives on PlanetSurface.tscn, a scene you are not looking at from
space, so an already-mined planet was otherwise indistinguishable
from an untouched one until you landed on it.

The positioning steps are factored out (building_markers(),
chunk_has_extractor_badge(), extractor_derrick_tip()) so headless
tests can assert on them - --headless has no GPU and draws no pixels,
so there is nothing to check in _draw() itself. Both features were
also rendered for real via tests/screenshot.sh and looked at.

extractor_derrick_tip() exists because the first version of the
"derrick is not buried inside the planet" check measured the furthest
of all four derrick points, which passes a derrick pointing straight
into the ground: the base corners sit a half-width off the rim vertex
and clear the outline on their own. Mutation-testing caught it.

screenshot.sh now clears a stale /tmp/.X99-lock. A run killed
mid-screenshot leaves it behind and Xvfb then refuses :99, which
resurfaces later as Godot's misleading "X11 Display is not available".

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Loïc Wisniewski 2026-08-11 15:29:56 +02:00
commit 8dd5d7b78f
13 changed files with 472 additions and 0 deletions
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25
tests/_planet_derrick_preview.gd Normal file
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extends Node2D
# Preview, not a test. Two planets side by side in SPACE - the left one has
# an extractor built on it, the right one does not - so the issue #9 derrick
# can be compared against a plain planet and judged as actually visible.
#
# bash tests/screenshot.sh res://tests/_planet_derrick_preview.tscn /tmp/derrick.png 15 1280x720
func _ready() -> void:
GameState.extractors.clear()
GameState.buildings.clear()
GameState.add_extractor("Mined World", Vector2.ZERO)
_spawn("Mined World", Vector2(380.0, 380.0), 12345)
_spawn("Untouched World", Vector2(900.0, 380.0), 4242)
func _spawn(planet_name: String, at: Vector2, shape_seed: int) -> void:
var planet: Node2D = load("res://Planet.tscn").instantiate()
planet.planet_name = planet_name
planet.shape_seed = shape_seed
planet.position = at
add_child(planet)
print("%s: derrick=%s" % [planet_name, planet.shows_extractor])