Class Ctx2dRenderer

Render onto an HTMLCanvasElement using a CanvasRenderingContext2D

Hierarchy

Renderer<Color>
- Ctx2dRenderer

Index

Constructors

Properties

canvas ctx defaultRenderAs imageData renderInfo

Methods

get_height get_width modifyElement renderPixel reset set_height set_width update

Constructors

constructor

new Ctx2dRenderer(canvas: HTMLCanvasElement): Ctx2dRenderer
Parameters
- canvas: HTMLCanvasElement
  
  The canvas to render on, and to adjust the size of
Returns Ctx2dRenderer
Overrides Renderer.constructor
- Defined in renderers.ts:120

Properties

canvas

canvas: HTMLCanvasElement

The canvas

ctx

ctx: CanvasRenderingContext2D

The rendering context for the canvas

defaultRenderAs

defaultRenderAs: Color = ...

Default color is solid black

imageData

imageData: ImageData

The last known image data from ctx

renderInfo

renderInfo: Color[] = []

Ordered by ID, the renderAs info for each element.

Methods

get_height

get_height(): number
Returns
the height of the canvas

Returns number
Inherited from Renderer.get_height
- Defined in renderers.ts:111

get_width

get_width(): number
Returns
the width of the canvas

Returns number
Inherited from Renderer.get_width
- Defined in renderers.ts:100

modifyElement

modifyElement(id: number, newRenderAs: Color): Color
In addition to calling modifyElement, this leftpads colors with 255 and checks for dupicates.

Returns
the actual color of the element. Always 4 long.
Parameters
- id: number
  
  Id of element
- newRenderAs: Color
  
  The proposed color of the element.
Returns Color
Overrides Renderer.modifyElement
- Defined in renderers.ts:146

renderPixel

renderPixel(loc: Location, id: number): void
Parameters
- loc: Location
  
  location of the pixel to render. Ignores frame and loop
- id: number
  
  The id of the pixel to render.
Returns void
Overrides Renderer.renderPixel
- Defined in renderers.ts:161

reset

reset(): void
Reset the render target.

Returns void
Overrides Renderer.reset
- Defined in renderers.ts:177

set_height

set_height(value: number): void
Parameters
- value: number
  
  The new height of the canvas
Returns void
Overrides Renderer.set_height
- Defined in renderers.ts:191

set_width

set_width(value: number): void
Parameters
- value: number
  
  The new width of the canvas
Returns void
Overrides Renderer.set_width
- Defined in renderers.ts:186

update

update(): void
Update the render target. Draws all changes queued up by renderPixel.

Returns void
Overrides Renderer.update
- Defined in renderers.ts:182

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