Contents

# The Nature of Code
# Daniel Shiffman
# http://natureofcode.com
# Basic example of falling rectangles

require 'pbox2d'
require_relative 'lib/boundary'
require_relative 'lib/box'

attr_reader :boxes, :boundaries, :box2d

Vect = Struct.new(:x, :y)

def settings
  size(640, 360, P2D)
end

def setup
  sketch_title 'Liquid Fun Test'
  @box2d = WorldBuilder.build(app: self)
  @boxes = []
  box2d.world.set_particle_radius(0.15)
  box2d.world.set_particle_damping(0.2)
  @boundaries = [
    Boundary.new(box2d, Vect.new(width / 4, height - 5), Vect.new(width / 2 - 50, 10)),
    Boundary.new(box2d, Vect.new(3 * width / 4, height - 50), Vect.new(width / 2 - 50, 10))
  ]
end

def mouse_pressed
  boxes << Box.new(box2d, mouse_x, mouse_y)
end

def draw
  background(255)
  boundaries.each(&:display)
  pos_buffer = box2d.world.particle_position_buffer
  return if pos_buffer.nil?
  stroke(0)
  stroke_weight(2)
  pos_buffer.each do |buf|
    pos = box2d.world_to_processing(buf)
    point(pos.x, pos.y)
  end
  fill(0)
  text(format('f.p.s %d', frame_rate), 10, 60)
end

Version data entries

8 entries across 8 versions & 1 rubygems

Version	Path
pbox2d-1.0.3-java	examples/liquid_fun_test.rb
pbox2d-1.0.2-java	examples/liquid_fun_test.rb
pbox2d-1.0.1-java	examples/liquid_fun_test.rb
pbox2d-1.0.0-java	examples/liquid_fun_test.rb
pbox2d-0.9.1-java	examples/liquid_fun_test.rb
pbox2d-0.9.0-java	examples/liquid_fun_test.rb
pbox2d-0.8.0-java	examples/liquid_fun_test.rb
pbox2d-0.6.0-java	examples/liquid_fun_test.rb