CanvasLayer

Canvas Layer - cached off screen rendering system

Contains an offscreen canvas that can be rendered to
WebGL rendering is optional, call updateWebGL to enable/update
A TileLayer using WebGL redraws into its texture and leaves this canvas blank, so drawing on its context only shows on a layer made with useWebGL=false (or with WebGL off); use drawLayerTile/drawLayerRect inside redrawStart/End for drawing that works both ways

Constructor

new CanvasLayer(pos, size, angle, renderOrder, canvasSize, useWebGL)engineTileLayer.js:662

Create a canvas layer object

pos Vector2 optional: World space position of the layer
size Vector2 optional: World space size of the layer
angle number optional, default 0: Angle the layer is rotated by
renderOrder number optional, default 0: Objects sorted by renderOrder
canvasSize Vector2 optional: Default size of canvas, can be changed later
useWebGL boolean optional, default true: Should this layer use WebGL for rendering

const canvasLayer = new CanvasLayer(vec2(), vec2(200,100));

canvas : OffscreenCanvasengineTileLayer.js:680

The canvas used by this layer

context : OffscreenCanvasRenderingContext2DengineTileLayer.js:678

The 2D canvas context used by this layer

textureInfo : TextureInfoengineTileLayer.js:682

Texture info to use for this object rendering

Destroy this canvas layer

immediate boolean optional, default false: Remove it now, as EngineObject.destroy does, children included

draw(pos, size, color, angle, mirror, additiveColor, screenSpace, context)engineTileLayer.js:719

Draw this canvas layer centered in world space

pos Vector2: Center in world space
size Vector2 optional: Size in world space
color Color optional: Color to modulate with
angle number optional, default 0: Angle to rotate by
mirror boolean optional, default false: If true the image is flipped left to right
additiveColor Color optional: Additive color to be applied if any
screenSpace boolean optional, default drawScreenSpace: If true the pos and size are in screen space
context CanvasRenderingContext2D|OffscreenCanvasRenderingContext2D optional: Canvas 2D context to draw to

hasWebGL() → booleanengineTileLayer.js:741

Check if this layer is using WebGL

Create WebGL texture if necessary and copy layer canvas to it