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pixijs/pixijs-math

在处理 PixiJS v8 中的坐标、向量、矩阵、形状、碰撞检测或布局矩形时使用此技能。它涵盖了 Point/ObservablePoint、Matrix(2D 仿射变换、分解、应用、逆变换)、形状(矩形、圆形、椭圆、多边形、圆角矩形、三角形)、Rectangle 布局助手(pad、fit、enlarge、ceil、scale、getBounds)、strokeContains 碰撞检测、Polygon isClockwise/containsPolygon、toGlobal/toLocal、PointData/PointLike/Size 类型、DEG_TO_RAD,以及 pixi.js/math-extras 的向量和交点辅助函数。触发关键词包括:Point、ObservablePoint、Matrix、Rectangle、Circle、Polygon、Triangle、RoundedRectangle、toGlobal、toLocal、hitArea、strokeContains、pad、fit、enlarge、ceil、getBounds、containsRect、intersects、isClockwise、math-extras、lineIntersection、segmentIntersection、DEG_TO_RAD、PointData。

pixijs-math 是什么?

此技能专门用于在 PixiJS v8 环境中处理与坐标、向量、矩阵、几何形状、碰撞检测以及布局矩形相关的各类计算。它全面覆盖了 Point/ObservablePoint 对象、Matrix 的 2D 仿射变换与分解操作,以及 Rectangle、Circle、Polygon 等常见形状的构建与检测。此外,还提供了丰富的布局辅助工具(如 pad、fit、enlarge、ceil、scale、getBounds)和高级碰撞检测功能(如 strokeContains、Polygon 的方向判断与包含关系检测)。该技能支持 PixiJS v8 及 math-extras 扩展库,适用于游戏开发、UI 布局和图形编辑等场景。通过精准的坐标转换(toGlobal/toLocal)和数学常量(DEG_TO_RAD),开发者可以高效实现 2D 空间的点、线、面交互逻辑,显著提升开发效率与代码可维护性。

兼容平台~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/pixijs/pixijs-skills/tree/main/skills/pixijs-math

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pixijs-math 是做什么的?

在处理 PixiJS v8 中的坐标、向量、矩阵、形状、碰撞检测或布局矩形时使用此技能。涵盖 Point/ObservablePoint、Matrix(2D 仿射变换、分解、应用、逆变换)、形状(Rectangle、Circle、Ellipse、Polygon、RoundedRectangle、Triangle)、Rectangle 布局助手(pad、fit、enlarge、ceil、scale、getBounds)、strokeContains 碰撞检测、Polygon isClockwise/containsPolygon、toGlobal/toLocal、PointData/PointLike/Size 类型、DEG_TO_RAD,以及 pixi.js/math-extras 的向量和交点辅助函数。触发关键词:Point、ObservablePoint、Matrix、Rectangle、Circle、Polygon、Triangle、RoundedRectangle、toGlobal、toLocal、hitArea、strokeContains、pad、fit、enlarge、ceil、getBounds、containsRect、intersects、isClockwise、math-extras、lineIntersection、segmentIntersection、DEG_TO_RAD、PointData。

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

pixijs/pixijs

Use this skill first for ANY PixiJS v8 task; it routes to the right specialized skill for the job. Covers the full PixiJS surface: Application setup, the scene graph (Container, Sprite, Graphics, Text, Mesh, ParticleContainer, DOMContainer, GifSprite), rendering (WebGL/WebGPU/Canvas, render loop, custom shaders, filters, blend modes), assets, events, color, math, ticker, accessibility, performance, environments, migration from v7, and project scaffolding. Triggers on: pixi, pixi.js, pixijs, PixiJS, v8, Application, app.init, Sprite, Container, Graphics, Text, Mesh, ParticleContainer, DOMContainer, GifSprite, Assets, Ticker, renderer, WebGL, WebGPU, scene graph, filter, shader, blend mode, texture, BitmapText, create-pixi, how do I draw, how do I render, how do I animate in pixi.

pixijs/pixijs-accessibility

Use this skill when adding screen reader and keyboard navigation to PixiJS v8 apps. Covers AccessibilitySystem options (enabledByDefault, debug, activateOnTab, deactivateOnMouseMove), per-container accessibility properties, shadow DOM overlay, mobile touch-hook activation. Triggers on: accessibility, a11y, screen reader, ARIA, keyboard navigation, tab order, AccessibilitySystem, accessibleTitle, accessibleHint, tabIndex, accessibleChildren.

pixijs/pixijs-application

Use this skill when creating and configuring a PixiJS v8 Application. Covers new Application() + async app.init() options (width, height, background, antialias, resolution, autoDensity, preference, resizeTo, autoStart, sharedTicker, canvas, useBackBuffer, powerPreference, eventFeatures, accessibilityOptions, gcActive, bezierSmoothness, webgl/webgpu/canvasOptions per-renderer overrides), app.stage/renderer/canvas/screen/domContainerRoot access, ResizePlugin, TickerPlugin, CullerPlugin (cullable, cullArea), custom ApplicationPlugin creation via ExtensionType.Application, start/stop lifecycle, and app.destroy() with releaseGlobalResources. Triggers on: Application, app.init, app.stage, app.renderer, app.canvas, app.screen, app.domContainerRoot, ApplicationOptions, ApplicationPlugin, ExtensionType.Application, resizeTo, preference, autoStart, sharedTicker, useBackBuffer, powerPreference, skipExtensionImports, preferWebGLVersion, preserveDrawingBuffer, cullable, CullerPlugin, app.start, app.stop, app.destroy, rele

pixijs/pixijs-assets

Use this skill when loading and managing resources in PixiJS v8. Covers Assets.init, Assets.load/add/unload, bundles, manifests, background loading, onProgress, caching, spritesheets, video textures, web fonts, bitmap fonts, animated GIFs, compressed textures, SVG as texture or Graphics, resolution detection, per-asset data options, and forcing a specific loader with the parser field (for extension-less URLs). Triggers on: Assets, Assets.load, Assets.init, loadBundle, manifest, backgroundLoad, Spritesheet, Cache, LoadOptions, unload, parser, loadParser, loadWebFont, loadBitmapFont, loadVideoTextures, GifSource, VideoSourceOptions.

pixijs/pixijs-blend-modes

Use this skill when compositing display objects with blend modes in PixiJS v8. Covers standard modes (normal, add, multiply, screen, erase, min, max), advanced modes via pixi.js/advanced-blend-modes (color-burn, overlay, hard-light, etc.), batch-friendly ordering. Triggers on: blendMode, additive, multiply, screen, overlay, color-burn, color-dodge, advanced-blend-modes, glow, erase.

pixijs/pixijs-color

Use this skill when creating, converting, or manipulating colors in PixiJS v8. Covers Color class input formats (hex, CSS names, RGB/HSL objects, arrays, Uint8Array), conversion methods (toHex, toNumber, toArray, toRgba), component access, setAlpha/multiply/premultiply, Color.shared singleton. Triggers on: Color, ColorSource, hex, rgb, hsl, tint, premultiply, Color.shared, color conversion.

pixijs/pixijs-core-concepts

Use this skill when understanding how PixiJS v8 renders frames: the systems-and-pipes renderer, the render loop, and how the library adapts to different environments. Covers WebGLRenderer/WebGPURenderer/CanvasRenderer selection, renderer.render() pipeline, environment detection, and pointers to per-topic deep dives. Triggers on: renderer, WebGL, WebGPU, Canvas, render loop, render pipeline, systems, environments, autoDetectRenderer.

pixijs/pixijs-create

Use this skill when scaffolding a new PixiJS v8 project with the create-pixi CLI or adding PixiJS to an existing project. Covers npm/yarn/pnpm/bun create commands, interactive vs non-interactive flows, bundler vs creation template categories, available template presets (bundler-vite, bundler-webpack, bundler-esbuild, bundler-import-map, creation-web, framework-react, extension-default), Node version requirements, `npm install pixi.js` for existing projects, post-scaffold dev flow, and the Vite top-level-await production-build gotcha. Triggers on: create pixi.js, npm create, npm install pixi.js, scaffold, template, bundler-vite, bundler-webpack, creation-web, framework-react, new project, existing project, getting started, quick start.

pixijs/pixijs-custom-rendering

Use this skill when writing custom shaders, uniforms, filters, or batchers in PixiJS v8. Covers Shader.from({gl, gpu, resources}), GlProgram/GpuProgram, UniformGroup with typed uniforms (f32, vec2, mat4x4), UBO mode, textures as resources, custom Filter via Filter.from, GLSL ES 3.0 conventions (in/out, finalColor, texture()), uBackTexture sampling, pixi.js/unsafe-eval for strict CSP, custom Batcher via extensions. Triggers on: Shader, GlProgram, GpuProgram, UniformGroup, Batcher, Filter, Filter.from, GLSL, WGSL, UBO, uniform, custom shader, finalColor, uBackTexture, blendRequired, unsafe-eval.

pixijs/pixijs-environments

Use this skill when running PixiJS v8 outside a standard browser: Web Workers, OffscreenCanvas, Node/SSR, or CSP-restricted contexts. Covers DOMAdapter.set, BrowserAdapter, WebWorkerAdapter, custom Adapter interface, pixi.js/unsafe-eval for strict CSP. Triggers on: DOMAdapter, BrowserAdapter, WebWorkerAdapter, Web Worker, OffscreenCanvas, Node, headless, SSR, CSP, unsafe-eval, Adapter.

pixijs/pixijs-events

Use this skill when handling pointer, mouse, touch, or wheel input in PixiJS v8. Covers eventMode (none, passive, auto, static, dynamic), FederatedEvent types, propagation and capture phase, hitArea, interactiveChildren, cursor and cursorStyles, global move events for drag, eventFeatures config. Triggers on: eventMode, FederatedPointerEvent, pointerdown, click, tap, globalpointermove, drag, hitArea, cursor, stopPropagation.

pixijs/pixijs-filters

Use this skill when applying visual effects to PixiJS v8 containers via the filter pipeline. Covers built-in filters (AlphaFilter, BlurFilter, ColorMatrixFilter, DisplacementFilter, NoiseFilter), custom Filter.from() with GLSL/WGSL, options (resolution, padding, antialias, blendRequired), filterArea optimization, pixi-filters community package. Triggers on: filters, BlurFilter, ColorMatrixFilter, DisplacementFilter, NoiseFilter, Filter.from, GLSL filter, pixi-filters, filterArea.

pixijs/pixijs-migration-v8

Use this skill when upgrading to PixiJS v8 from v7 or diagnosing broken v7 code after an upgrade. Covers async app.init, single pixi.js package (deprecated @pixi/* sub-packages), Graphics shape-then-fill, BaseTexture → TextureSource, shader/uniform rework, ParticleContainer+Particle, constructor options objects, DisplayObject removal, settings/utils removal, Ticker signature, events rewrite. Triggers on: migrate v7, v8 breaking changes, @pixi/ import, DisplayObject, beginFill, endFill, cacheAsBitmap, BaseTexture, deprecated.

pixijs/pixijs-performance

Use this skill when profiling or optimizing a PixiJS v8 app for FPS, draw calls, or GPU memory. Covers destroy patterns (cacheAsTexture(false), releaseGlobalResources), GCSystem and TextureGCSystem, PrepareSystem, object pooling, batching rules, BitmapText for dynamic text, culling (Culler, CullerPlugin, cullable, cullArea), resolution/antialias tradeoffs. Triggers on: FPS, jank, draw calls, batching, object pool, GCSystem, PrepareSystem, Culler, cacheAsTexture, memory leak, destroy patterns.

pixijs/pixijs-scene-container

Use this skill when grouping, positioning, or transforming display objects in PixiJS v8. Covers Container constructor options (isRenderGroup, sortableChildren, boundsArea), addChild/removeChild/addChildAt/swapChildren/setChildIndex, position/scale/rotation/pivot/skew/alpha/tint, getBounds/getGlobalPosition/toLocal/toGlobal, zIndex sorting, cullable, onRender per-frame callback, destroy. Triggers on: Container, addChild, removeChild, addChildAt, swapChildren, sortableChildren, zIndex, position, scale, rotation, pivot, getBounds, toGlobal, toLocal, onRender, destroy, constructor options, ContainerOptions.

pixijs/pixijs-scene-core-concepts

Use this skill when reasoning about the PixiJS v8 scene graph as a whole: how containers, leaves, transforms, and render order fit together. Covers leaf vs container distinction, local/world coordinates, culling, render groups, sortable children, masking, RenderLayer, constructor options shared by every scene node, and which leaf skill covers which display object. Triggers on: scene graph, display list, Container, Sprite, Graphics, Text, Mesh, ParticleContainer, DOMContainer, GifSprite, masking, render group, RenderLayer, world transform, constructor options, ContainerOptions.

pixijs/pixijs-scene-dom-container

Use this skill when overlaying HTML elements on the PixiJS v8 canvas. Covers DOMContainer with element, anchor, and scene-graph-driven CSS transforms, the pixi.js/dom side-effect import, DOMPipe registration, visibility sync, pointer-events handling. Triggers on: DOMContainer, pixi.js/dom, DOMPipe, HTML overlay, input on canvas, iframe overlay, DOMContainerOptions, element, anchor, constructor options.

pixijs/pixijs-scene-gif

Use this skill when displaying animated GIFs in PixiJS v8. Covers the pixi.js/gif side-effect import, Assets.load returning a GifSource, GifSprite playback (play/stop/currentFrame/animationSpeed), autoPlay/loop options, onComplete/onLoop/onFrameChange callbacks, GifSource sharing, clone, destroy. Triggers on: GifSprite, GifSource, pixi.js/gif, animationSpeed, currentFrame, autoPlay, onComplete, onFrameChange, constructor options, GifSpriteOptions.

pixijs/pixijs-scene-graphics

Use this skill when drawing vector shapes and paths in PixiJS v8. Covers the Graphics API: shape-then-fill methods (rect/circle/ellipse/poly/roundRect/star/regularPoly/roundPoly/roundShape/filletRect/chamferRect), path methods (moveTo/lineTo/bezierCurveTo/quadraticCurveTo/arc/arcTo/arcToSvg/closePath), fill/stroke/cut, holes, FillGradient (linear/radial), FillPattern, GraphicsContext sharing, svg import/export, containsPoint hit testing, cloning, clearing, bounds, fillStyle/strokeStyle, draw-time transforms (rotateTransform/scaleTransform/translateTransform/setTransform/save/restore), default styles, GraphicsPath reuse. Triggers on: Graphics, GraphicsContext, rect, circle, poly, roundRect, fill, stroke, cut, hole, beginHole, FillGradient, FillPattern, moveTo, bezierCurveTo, svg, graphicsContextToSvg, svg export, GraphicsOptions, containsPoint, clone, clear, bounds, rotateTransform, translateTransform, setFillStyle, setStrokeStyle, GraphicsPath.

pixijs/pixijs-scene-mesh

Use this skill when rendering custom geometry in PixiJS v8. Covers Mesh with MeshGeometry (positions, uvs, indices, topology), MeshSimple for per-frame vertex animation, MeshPlane for subdivided deformation, MeshRope for path-following textures, PerspectiveMesh for 2.5D corners. Triggers on: Mesh, MeshGeometry, MeshSimple, MeshPlane, MeshRope, PerspectiveMesh, positions, uvs, indices, topology, setCorners, constructor options, MeshOptions, MeshPlaneOptions, MeshRopeOptions, SimpleMeshOptions, PerspectivePlaneOptions.

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