Steven Wroblewski
9921aba63a
Jede Grafik auf dem Spielfeld bekommt eine Kennung. Art zeichnet sie im gewählten Stil oder aus einem Bild gleichen Namens unter game/art. ArtStyle zeichnet vorerst schlichte Platzhalter. TileShape beschreibt die Nachbarn einer Kachel, damit Felsmassen außen rund und innen geschlossen gezeichnet werden können. Die drei Stile Warm, Pastell und Glimmen gibt es schon mit Namen, noch ohne eigene Zeichnungen. Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
106 lines
3.6 KiB
GDScript
106 lines
3.6 KiB
GDScript
class_name Art
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extends RefCounted
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## Every graphic on the playing field has an id. Art draws it in the chosen
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## style, or from a picture whose file name is the id, so that an artist can
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## replace a graphic without changing code: res://art/terrain/ground.png
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## replaces the drawing of GROUND.
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## The style changed, or pictures were loaded. Everything drawn by Art has to
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## be drawn again.
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signal changed
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const GROUND := &"terrain/ground"
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const SOFT_ROCK := &"terrain/soft_rock"
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const HARD_ROCK := &"terrain/hard_rock"
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const BEDROCK := &"terrain/bedrock"
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## The cracks of a tile that took hits, drawn over the tile.
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const CRACKS := &"terrain/cracks"
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## The burst where a pickaxe lands.
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const HIT := &"effect/hit"
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const FIGURE := &"figure"
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## The outline of the tile under the mouse.
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const MARKER := &"marker"
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## Graphics of later milestones, shown in the showcase of the style samples.
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const DEAD_SOIL := &"soil/dead"
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const LIVING_SOIL := &"soil/living"
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const MOSS := &"plant/moss"
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const VINE := &"plant/vine"
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const FIBER_PLANT := &"plant/fiber"
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const STONE := &"item/stone"
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const GRAZER := &"animal/grazer"
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const RUIN := &"ruin"
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## Every id, in the order the showcase and the checks go through them.
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const IDS: Array[StringName] = [
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GROUND, SOFT_ROCK, HARD_ROCK, BEDROCK, CRACKS, HIT, FIGURE, MARKER,
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DEAD_SOIL, LIVING_SOIL, MOSS, VINE, FIBER_PLANT, STONE, GRAZER, RUIN,
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]
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## The folder where pictures that replace drawings are looked for.
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const OVERRIDE_DIR := "res://art"
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## The styles to choose from, in the order the game offers them.
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var styles: Array[ArtStyle] = [WarmStyle.new(), PastelStyle.new(), GlowStyle.new()]
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## The style everything is drawn in.
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var style: ArtStyle = styles[0]
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var _overrides: Dictionary[StringName, Texture2D] = {}
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## The keys of the styles, as LaunchOptions and the settings name them.
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static func style_keys() -> Array[StringName]:
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return [WarmStyle.KEY, PastelStyle.KEY, GlowStyle.KEY]
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## Draws everything in the style named `key` from now on. Returns false, and
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## changes nothing, if no style has that key.
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func select(key: StringName) -> bool:
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for candidate in styles:
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if candidate.key() == key:
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if candidate != style:
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style = candidate
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changed.emit()
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return true
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return false
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## Switches to the style after the current one, and from the last to the
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## first.
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func select_next() -> void:
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style = styles[(styles.find(style) + 1) % styles.size()]
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changed.emit()
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## Uses the picture `<directory>/<id>.png` instead of the drawing, for every
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## id that has one. Pictures loaded earlier are dropped.
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func load_overrides(directory: String) -> void:
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_overrides.clear()
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for id in IDS:
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var texture := _load_texture(directory.path_join(String(id) + ".png"))
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if texture != null:
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_overrides[id] = texture
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changed.emit()
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## True if a picture replaces the drawing of `id`.
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func has_override(id: StringName) -> bool:
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return _overrides.has(id)
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## Draws the graphic `id` into `rect` on `canvas`. Call it only while
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## `canvas` draws, from its _draw(). `state` carries what the graphic shows,
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## for example how far a plant has grown; see the styles for the entries.
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func draw(canvas: CanvasItem, id: StringName, rect: Rect2, state: Dictionary = {}) -> void:
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var texture: Texture2D = _overrides.get(id)
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if texture != null:
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canvas.draw_texture_rect(texture, rect, false)
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else:
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style.draw(canvas, id, rect, state)
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static func _load_texture(path: String) -> Texture2D:
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if path.begins_with("res://"):
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return load(path) as Texture2D if ResourceLoader.exists(path) else null
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if not FileAccess.file_exists(path):
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return null
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var image := Image.load_from_file(path)
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return ImageTexture.create_from_image(image) if image != null else null
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