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测试与安全

pixijs-math

pixijs/pixijs-skills

Use this skill when working with coordinates, vectors, matrices, shapes, hit testing, or layout rectangles in PixiJS v8. Covers Point/ObservablePoint, Matrix (2D affine, decompose (including mirrored/negative-scale matrices), apply, applyInverse), shapes (Rectangle, Circle, Ellipse, Polygon, RoundedRectangle, Triangle), Rectangle layout helpers (pad, fit, enlarge, ceil, scale, getBounds), strokeContains hit tests, Polygon isClockwise/containsPolygon, toGlobal/toLocal, PointData/PointLike/Size types, DEG_TO_RAD, and pixi.js/math-extras vector and intersection helpers. Triggers on: 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, decompose, mirror, flip, negative scale, setFromMatrix.

  • 6085 次安装
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安装命令

npx skills add https://github.com/pixijs/pixijs-skills --skill pixijs-math

SKILL.md

PixiJS exposes lightweight math primitives (Point, Matrix, shape classes) used throughout the library for transforms, hit testing, and coordinate conversion. Import pixi.js/math-extras to add vector operations (add, dot, magnitude, reflect) and Rectangle intersection/union helpers.

Quick Start

const parent = new Container();
parent.position.set(100, 100);
parent.scale.set(2);
app.stage.addChild(parent);

const child = new Container();
child.position.set(50, 50);
parent.addChild(child);

const globalPt = child.toGlobal(new Point(0, 0));

相关 Skills

pixijspixijs/pixijs-skillsUse 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, 3D texture, depth slice, layer, storage texture, BitmapText, create-pixi, how do I draw, how do I render, how do I animate in pixi.设计与多媒体7102pixijs-applicationpixijs/pixijs-skillsUse 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 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, sharedTicker, skipExtensionImports, preferWebGLVersion, preserveDrawingBuffer, cullable, CullerPlugin, app.start, app.stop, app.destroy, releaseGlobalResources.其他6258pixijs-performancepixijs/pixijs-skillsUse 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, low-level wins (transient MSAA render textures, render bundles, partial buffer updates). Triggers on: FPS, jank, draw calls, batching, object pool, GCSystem, PrepareSystem, Culler, cacheAsTexture, memory leak, destroy patterns, render bundle, transient, MSAA, Buffer.update, WebGPU performance, TexturePool, repeatEdgePixels, bind group.设计与多媒体6246pixijs-core-conceptspixijs/pixijs-skillsUse 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, rendering into RenderTextures and RenderTargets (flipY, mipLevel, layer, bind/push/pop, copyDepthTexture), WebGL context loss and WebGPU device loss recovery, and pointers to per-topic deep dives. Triggers on: renderer, WebGL, WebGPU, Canvas, render loop, render pipeline, systems, environments, autoDetectRenderer, RenderTexture, RenderTarget, render to texture, flipY, mipLevel, layer, 3D texture, depth slice, renderTarget.bind, copyToTexture, copyDepthTexture, depth-only, WebGLLoader, WebGPULoader, CanvasLoader, RendererLoader, lazy-load renderer systems, code splitting, context lost, webglcontextlost, device lost, GPUDevice.lost.设计与多媒体6195pixijs-scene-graphicspixijs/pixijs-skillsUse 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.后端与数据库6190pixijs-assetspixijs/pixijs-skillsUse 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.设计与多媒体6168