// Rosetta Code problem: http://rosettacode.org/wiki/Simple_turtle_graphics
// Adapted from Python to Yabasic by Galileo, 01/2022

import turtle

sub rectang(width, height)
    local i

    for i = 1 to 2
        move(height)
        turn(-90)
        move(width)
        turn(-90)
    next
end sub

sub square(size)
    rectang(size, size)
end sub

sub triang(size)
    local i

    for i = 1 to 3
        move(size)
        turn(120)
    next
end sub

sub house(size)
    turn(180)
    square(size)
    triang(size)
    turn(180)
end sub

sub barchart(lst$, size)
    local t$(1), t(1), n, m, i, scale, width

    n = token(lst$, t$())
    redim t(n)

    for i = 1 to n
        t(i) = val(t$(i))
        if t(i) > m m = t(i)
    next

    scale = size/m
    width = size/n
    for i = 1 to n
        rectang(t(i)*scale, width)
        pen(false)
        move(width)
        pen(true)
    next
    pen(false)
    move(-size)
    pen(true)
end sub

startTurtle()
color 255, 255, 255
turn(90)
house(150)
pen(false)
move(10)
pen(true)
barchart("0.5 0.333 2 1.3 0.5", 200)