class Breadbin::Image::Multicolor

• Breadbin::Image::Multicolor
• Reference
• Object

Overview

A low resolution image using any three colors plus the background color within each 4x8 pixel cell.

Each pixel in a Multicolor image has double horizontal width. When converted from a PNG image with .from_png only even horizontal pixels are considered.

Included Modules

• Breadbin::Image

Defined in:

Constructors

• .new(width : Int32, height : Int32, palette : Breadbin::Palette = Palette.new("colodore"))

  Creates an image with the given width, height and palette.

Class Method Summary

• .from_png(pathname : String, rect : Tuple | Rectangle | Nil = nil)

Instance Method Summary

• #byte_at(x : Int32, y : Int32, clist : ColorList) : UInt8

  Get the byte representation of the 4x1 pixel area at x and y, with clist holding the triplet of colors that should be mapped to the "01", "10" and "11" bit pairs respectively

• #cell_at(col : Int32, row : Int32, bgcolor : UInt8 = 0, sort_first : Bool = false) : Array(UInt8)

  Get a 10 bytes representation of the 4x8 pixel cell at the given col and row, where the first byte holds the screen color nybbles, the second byte holds the color map nybble and the remaining 8 bytes holds the bitmap data

• #chars_at(x : Int32, y : Int32, cols : Int32, rows : Int32, clist : ColorList, blank : Bool = true) : Array(UInt8)
• #fixcount : Int32
• #fixcount=(fixcount : Int32)
• #sprite_at(x : Int32, y : Int32, clist : ColorList) : Bytes

  Get a 63 bytes sprite representation of the 12x21 pixel region at the given x and y position, with clist holding the triplet of colors that should be mapped to the "01", "10" and "11" bit pairs respectively

• #to_bytes(bgcolor : UInt8 = 0_u8, pad : Bool = false) : Bytes

  Get a bytes representation of an image whose dimensions are 160x200 pixels.

Constructor Detail

Class Method Detail

Instance Method Detail