X Tools are extensions of already existing vanilla classes.

imageX

The imageX extension adds generic functions that extend the vanilla image library:

name	description
drawCheckerLineH	Draws a horizontal line with a checkerboard pattern
drawCheckerLineV	Draws a vertical line with a checkerboard pattern
drawCheckerLineV	Draws a vertical line with a checkerboard pattern
drawCheckerRect	Draws a rectangle with a checkerboard pattern
fillCheckerRect	Draws a filled rectangle with a checkerboard pattern

Fonts

One of the main features is a general implementation of the image.Font class to make font creation simpler.

Creating a new font

There are two methods to create a new font: the first one is static and the second one is dynamic.

The static method works by creating a new imageX.Font and giving it all the font data directly as a raw Buffer:

let myFont: image.Font = new imageX.Font(4, 8, Buffer.fromArray([
    ord(" "), 0x00, // Header (Unicode Little Endian)
    0b00000000, 0b00000000, 0b00000000, 0b00000000, // Data (1-bit per pixel image of the font's character read from bottom to top and from left to right)
    // Repeat to add more characters

The dynamic (and simpler) method works by creating a new empty imageX.Font and adding the characters one by one:

let myFont: image.Font = new imageX.Font(4, 8, Buffer.create(0))
// Add font glyphs
myFont.add_glyph(" ", [0b00000000, 0b00000000, 0b00000000, 0b00000000])
// Repeat to add more characters

Using an existing font

To use a custom font, the method is the same as using a vanilla one (like image.font5).

List of custom pre-made fonts

Cosmos includes some pre-made fonts in the imageX.font namespace:

Name	Style
SYS_4x8	Sharp edges