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Contents
# From the Processing Examples
# by Zach Lieberman
# Ruby version thanks to Nick Sieger
# Demonstrates method-proxying for inner classes.
WORDS = ["sometimes it's like", "the lines of text", "are so happy", "that they want to dance",
"or leave the page or jump", "can you blame them?", "living on the page like that",
"waiting to be read..."]
def setup
size(200, 200, P3D)
frame_rate 30
# Load the font from the sketch's data directory.
text_font load_font("Univers66.vlw.gz"), 1.0
fill 255
# Creating the line objects
@lines = Array.new(WORDS.length) do |i|
Line.new(WORDS[i], 0, i*70)
end
end
def draw
background 0
translate -240, -120, -450
rotate_y 0.3
# Now animate every line object & draw it...
@lines.each_with_index do |line, i|
push_matrix
translate 0.0, line.ypos, 0.0
line.draw(i)
pop_matrix
end
end
class Line
include Math
attr_accessor :string, :xpos, :ypos, :letters
def initialize(string, x, y)
@string, @xpos, @ypos = string, x, y
spacing = 0.0
@letters = @string.split('').map do |c|
spacing += text_width(c)
Letter.new(c, spacing, 0.0)
end
end
def compute_curve(line_num)
base = millis / 10000.0 * PI * 2
sin((line_num + 1.0) * base) * sin((8.0 - line_num) * base)
end
def draw(line_num)
curve = compute_curve(line_num)
@letters.each_with_index do |letter, i|
translate(text_width(@letters[i-1].char)*75, 0.0, 0.0) if i > 0
rotate_y(curve * 0.035)
push_matrix
scale(75.0, 75.0, 75.0)
text(letter.char, 0.0, 0.0)
pop_matrix
end
end
end
class Letter
attr_accessor :char, :x, :y
def initialize(c, x, y)
@char, @x, @y = c, x, y
end
end
Version data entries
9 entries across 9 versions & 1 rubygems