team-1-week-2.rb

def tick args
  if Kernel.tick_count > 518
    puts "#{args.state.dvd}"
    GTK.slowmo! 30
  end

  args.state.dvd ||= { x: 640,
                       y: 360,
                       w: 64,
                       h: 64,
                       path: "sprites/square/blue.png",
                       dx: 5,
                       dy: 5,
                       collision_x: false,
                       collision_y: false, }

  args.state.boundaries ||= [
    { target_w: 5, growth_direction: :x, apply_offset: false, x: 0, y: 0, w: 5, h: 720, path: :solid, r: 255, g: 0, b: 0 },
    { target_w: 5, growth_direction: :x, apply_offset: true, x: 1275, y: 0, w: 5, h: 720, path: :solid, r: 255, g: 0, b: 0 },
    { target_h: 5, growth_direction: :y, apply_offset: false, x: 0, y: 0, w: 1280, h: 5, path: :solid, r: 255, g: 0, b: 0 },
    { target_h: 5, growth_direction: :y, apply_offset: true, x: 0, y: 715, w: 1280, h: 5, path: :solid, r: 255, g: 0, b: 0 },
  ]

  args.state.dvd.collision_x = false
  args.state.dvd.collision_y = false

  args.state.dvd.y += args.state.dvd.dy
  collision = args.state.boundaries.find do |boundary|
    Geometry.intersect_rect?(args.state.dvd, boundary)
  end

  if collision
    if args.state.dvd.dy > 0
      args.state.dvd.y = collision.y - args.state.dvd.h
      args.state.dvd.dy *= -1
    else args.state.dvd.dy < 0
      args.state.dvd.y = collision.y + collision.h
      args.state.dvd.dy *= -1
    end
    args.state.dvd.collision_y = true
  end

  args.state.dvd.x += args.state.dvd.dx
  collision = args.state.boundaries.find do |boundary|
    Geometry.intersect_rect?(args.state.dvd, boundary)
  end

  boundries = args.state.boundaries.find_all { |boundary| Geometry.intersect_rect?(args.state.dvd, boundary) }
  if boundries.length > 0
    puts "Collision detected with boundaries: #{boundries.inspect}"
  end

  if collision
    if args.state.dvd.dx > 0
      args.state.dvd.x = collision.x - args.state.dvd.w
      args.state.dvd.dx *= -1
    else args.state.dvd.dx < 0
      args.state.dvd.x = collision.x + collision.w
      args.state.dvd.dx *= -1
    end
    args.state.dvd.collision_x = true
  end

  args.outputs.watch "#{args.state.dvd}"
  args.outputs.sprites << args.state.boundaries
  args.outputs.sprites << args.state.dvd

  if args.inputs.keyboard.key_down.space
    puts Kernel.tick_count
    args.state.boundaries.each do |boundary|
      if boundary.growth_direction == :x
        boundary.target_w += 5
      elsif boundary.growth_direction == :y
        boundary.target_h += 5
      end
    end

    collision = args.state.boundaries.find do |boundary|
      Geometry.intersect_rect?(args.state.dvd, boundary)
    end

    if collision && args.state.dvd.dx > 0
      args.state.dvd.x = collision.x - args.state.dvd.w
    elsif collision
      args.state.dvd.x = collision.x + collision.w
    end

    if collision && !args.state.dvd.collision_x
      args.state.dvd.dx *= -1
    end
  end

  args.state.boundaries.each do |boundary|
    if boundary.growth_direction == :x
      boundary.w = boundary.w.lerp(boundary.target_w, 0.1)
    end

    if boundary.growth_direction == :y
      boundary.h = boundary.h.lerp(boundary.target_h, 0.1)
    end
  end
end

# GTK.reset_and_replay "replay.txt", speed: 1