extends Node2D

# Preview, not a test (underscore prefix keeps it out of run_tests.sh).
# Renders the world map with buildings placed and an extractor built, so the
# issue #11 building markers and the issue #9 extractor badge can actually be
# LOOKED at. --headless draws no pixels, so no headless test can tell whether
# a marker is visible - see tests/screenshot.sh.
#
#   bash tests/screenshot.sh res://tests/_marker_preview.tscn /tmp/map.png 20 720x1280


func _ready() -> void:
	GameState.buildings.clear()
	GameState.extractors.clear()
	GameState.explored_chunks.clear()

	# Near the origin, where the fleet starts, so everything lands on screen.
	GameState.add_building(GameState.BUILDING_MOTHERSHIP, Vector2(900.0, -700.0))
	GameState.add_building(GameState.BUILDING_SHIP_CRAFTER, Vector2(-1100.0, 300.0))
	GameState.add_building(GameState.BUILDING_COMMAND_CENTER, Vector2(400.0, 1200.0))

	# Reveal a patch of map, and put an extractor on whichever planet is
	# nearest the origin so its badge is in frame too.
	var best: Vector2i = Vector2i.ZERO
	var best_distance: int = 1 << 30
	for x in range(-6, 7):
		for y in range(-6, 7):
			var chunk: Vector2i = Vector2i(x, y)
			GameState.explored_chunks[chunk] = true
			if WorldGen.has_planet_at_chunk(chunk):
				var d: int = absi(x) + absi(y)
				if d < best_distance:
					best_distance = d
					best = chunk
	if best_distance < (1 << 30):
		var data: Dictionary = WorldGen.planet_data_at_chunk(best)
		GameState.add_extractor(data.name, WorldGen.chunk_origin(best) + data.local_pos)
		print("extractor on '%s' at chunk %s" % [data.name, best])

	var main: Node = load("res://world/Main.tscn").instantiate()
	add_child(main)
	# open_map(), not `visible = true` - opening also recentres the view on
	# the fleet, and without that the map is drawn from its own origin in the
	# corner of the screen with everything near the fleet cropped off.
	main.get_node("UI/WorldMap").open_map()