pixijs/pixijs-skills

pixijs-scene-sprite

Use this skill when drawing images in PixiJS v8.

Quelltext ansehen

Verwendung

  1. Installationsbefehl kopieren und das Quellpaket vor der Installation in der eigenen Agentenumgebung prüfen.
  2. Benötigte Werkzeuge, Zugangsdaten und Hosts im Original prüfen.
  3. Eingabe und gewünschtes Ergebnis beschreiben und die Ausgabe mit den Quellen abgleichen.
npx skills add https://github.com/pixijs/pixijs-skills --skill pixijs-scene-sprite

Vor dem Start

  • Die Installation umfasst weder Modellabo noch API-Kontingent oder Dateizugriffsrechte.
  • Sterne und Installationen zeigen Aktivität, keine unabhängige Qualitäts- oder Sicherheitsprüfung.
Originales Skill-Dokument

Aus dem Quell-Repository gerendert; Überschriften, Beispiele, Code, Tabellen, Links und Bilder bleiben erhalten.

PixiJS has three sprite classes for different drawing tasks. Sprite is the default image-drawing leaf; NineSliceSprite is a resizable UI-panel variant that preserves corner art; TilingSprite repeats a texture across an area. The AnimatedSprite subclass of Sprite cycles through texture frames for frame-based animation.

Assumes familiarity with pixijs-scene-core-concepts. All sprite classes are leaf nodes; they cannot have children. Wrap multiple sprites in a Container to group them.

Quick Start

ts
const texture = await Assets.load("bunny.png");

const sprite = new Sprite({
  texture,
  anchor: 0.5,
  tint: 0xff8888,
});
sprite.x = app.screen.width / 2;
sprite.y = app.screen.height / 2;

app.stage.addChild(sprite);

Position is set after construction because app.screen.width / 2 depends on the live renderer size. Literal positions can go directly in the options object via x/y (inherited from Container).

Related skills: pixijs-scene-core-concepts (leaves, transforms), pixijs-assets (texture loading), pixijs-scene-particle-container (thousands of sprites), pixijs-performance (spritesheets, batching).

Variants

VariantUse whenTrade-offsReference
SpriteDraw a single texture at a positionFixed size = texture sizereferences/sprite.md
AnimatedSpriteFrame-based animation from a texture array or spritesheetPre-rendered frames only; no tweeningreferences/animated-sprite.md
NineSliceSpriteResizable UI panels, buttons, dialog framesBorder width is fixed; center stretchesreferences/nineslice-sprite.md
TilingSpriteScrolling backgrounds, parallax, repeating patternsSingle texture repeated; tilePosition scrollsreferences/tiling-sprite.md

AnimatedSprite is a subclass of Sprite; all Sprite properties (anchor, tint, position) apply.

Each variant's constructor options are documented in its sub-reference file (references/{variant}.md). All variants also accept the Container options (position, scale, tint, label, filters, zIndex, etc.) — see skills/pixijs-scene-core-concepts/references/constructor-options.md.

When to use what

  • "I want to draw a single image at a position" → Sprite. The default choice for 90% of 2D game and app content.
  • "I want to animate a character through a series of frames" → AnimatedSprite. Load a spritesheet via Assets and pass sheet.animations['walk']. See references/animated-sprite.md.
  • "I want a UI button/panel that resizes without stretching the borders" → NineSliceSprite. Set border widths, then set width/height. See references/nineslice-sprite.md.
  • "I want a scrolling repeating background" → TilingSprite. Animate tilePosition to scroll. See references/tiling-sprite.md.
  • "I want thousands of identical sprites" → Use ParticleContainer with Particle instances (see pixijs-scene-particle-container), not plain sprites.
  • "I want to draw shapes or paths" → Use Graphics (see pixijs-scene-graphics), not a sprite.

Quick concepts

Anchor vs pivot

Sprite.anchor is normalized [0, 1] and shifts only the texture draw origin; no position offset. Container.pivot is pixel-space and shifts both the transform origin and the visual position. For centering a sprite, always use anchor.set(0.5).

Loading before creating

Sprite.from(id) only reads the Assets cache; it does not fetch. Always await Assets.load(...) first, or pass the returned Texture directly to new Sprite(texture).

Dynamic textures

Once a texture is loaded, modifying its frame or swapping its source does not automatically notify sprites. Set texture.dynamic = true once, or call sprite['onViewUpdate']() manually after changes.

Common Mistakes

[HIGH] Using Texture.from(url) to load

Wrong:

ts
const texture = Texture.from("https://example.com/image.png");

Correct:

ts
const texture = await Assets.load("https://example.com/image.png");

Texture.from() only reads the cache in v8. Use Assets.load() first; its return value is the texture.

[HIGH] Confusing anchor and pivot

Wrong:

ts
sprite.pivot.set(sprite.width / 2, sprite.height / 2);

Correct:

ts
sprite.anchor.set(0.5);

anchor shifts only the draw origin. pivot shifts the transform origin AND the visual position, causing the sprite to move unexpectedly.

[HIGH] Old NineSlicePlane name

NineSlicePlane was renamed to NineSliceSprite in v8 and switched to an options-object constructor: new NineSliceSprite({ texture, leftWidth, topHeight, rightWidth, bottomHeight }).

[MEDIUM] Adding children to a sprite

Sprite, NineSliceSprite, and TilingSprite all set allowChildren = false. Wrap in a Container to group sprites with other content.

API Reference

Verwandte Aufgaben

aus demselben Repository

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