Godot Engine 2.1: Creating bitmap font from PNG image

gistfile1.txt

tool

extends Label

var font
onready var texture = load("res://fonts/main.png")

func _ready():
	# Create font
	font = BitmapFont.new()
	font.add_texture(texture)
	
	var pos = Vector2(0,0)
	var size = Vector2(4, 5)
	
	# A-Z
	var char = 65
	for x in range(0, 26):
		pos.x = x * size.x
		pos.y = 0
		font.add_char(char, 0, Rect2(pos, size))
		char = char + 1
		
	# Punctuation and numbers
	var char = 32
	for x in range(0, 26):
		pos.x = x * size.x
		pos.y = 1 * size.y
		font.add_char(char, 0, Rect2(pos, size))
		char = char + 1
	
	# More punctuation
	var char = 58
	for x in range(0, 7):
		pos.x = x * size.x
		pos.y = 2 * size.y
		font.add_char(char, 0, Rect2(pos, size))
		char = char + 1

	add_font_override("font", font) # "font" name is magic
	font.update_changes()

	set_uppercase(true)