Method: MiniGL::ImageFont#initialize

Defined in:
lib/minigl/text.rb

#initialize(img_path, chars, widths, height, space_width, global = true, ext = '.png', retro = nil) ⇒ ImageFont

Creates an ImageFont.

Parameters:

img_path

Identifier of an image fitting the description in the class documentation, as used in Res.img.

chars

A string containing all characters that will be present in the image, in the same order as they appear in the image. Do not include white space.

widths

An integer representing the width of the chars in pixels, if this is a fixed width font, or an array containing the width of each char, in the same order as they appear in the chars string.

height

The height of the lines in the image (see description above).

space_width

The width of the white space character in this font.

global

Parameter that will be passed to Res.img when loading the image.

ext

Parameter that will be passed to Res.img when loading the image.

retro

Parameter that will be passed to Res.img when loading the image.



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# File 'lib/minigl/text.rb', line 32

def initialize(img_path, chars, widths, height, space_width, global = true, ext = '.png', retro = nil)
  retro = Res.retro_images if retro.nil?
  img = Res.img(img_path, global, false, ext, retro)
  @chars = chars
  @images = []
  @height = height
  @space_width = space_width
  wa = widths.is_a?(Array)
  if wa && widths.length != chars.length
    raise 'Wrong widths array size!'
  end
  x = y = 0
  (0...chars.length).each do |i|
    @images.push(img.subimage(x, y, wa ? widths[i] : widths, height))
    new_x = x + (wa ? widths[i] : widths)
    if i < chars.length - 1 && new_x + (wa ? widths[i+1] : widths) > img.width
      x = 0
      y += height
    else
      x = new_x
    end
  end
end