oeloeloel

# A small POC experiment with buttons (it doesn't attempt to solve all the problems)
# the button method implements behaviour for a three-state button
# it accounts for button "layers" that can be formed from multiple primitives
# it doesn't impose other constraints on the dev, so the dev is free to make
# the buttons any way they like. This code shows:
# • A button made from a basic rect and label (with a bonus arbitrary rect for the active state)
# • A resizable button with rounded ends and a 2 pixel outline (1 label, 6 sprites)

def tick args
  args.outputs.background_color = {r: 88, g: 124, b: 204}

oeloeloel

$gtk.reset

SPLINE = [
  [0.0, 0.99, 0.99, 1.0]
]

def tick args

  # duration of movement
  args.state.duration = 4.seconds

oeloeloel

# buffer pixel array data to persist across ticks

def tick args
  dimension = 100  # keep it small and let the GPU scale it when rendering the sprite.

  if args.tick_count.zero?
    # Set up our "parray" pixel array and fill it with black pixels.
    args.pixel_array(:parray).width = dimension
    args.pixel_array(:parray).height = dimension
    args.pixel_array(:parray).pixels.fill(0xFFFFFFFF, 0, dimension * dimension)  # black, full alpha

oeloeloel

def tick(args)
  args.state.game_state ||= 'playing'
  args.state.player ||= {
    x: 100, y: 40, w: 80, h: 80, angle: 90,
    path: 'sprites/circle/blue.png'
  }
  args.state.player_bullet ||= {
    x: 130, y: 800, w: 20, h: 20,
    path: 'sprites/triangle/equilateral/blue.png'
  }

oeloeloel

class AnObject
  attr_reader :a, :b, :c, :d, :e, :f
  def initialize
    @a = 1
    @b = 1
    @c = 1
    @d = 1
    @e = 1
    @f = 1
  end

oeloeloel

# supersampling for fancy sprite rotation
# solves uneven rotation of odd-sized sprites
# using an upscaled render target

def tick(args)
  args.state.size ||= 7 # width/height of sprite (odd)
  args.state.upsample ||= 8 # 2 minimum, 8 is better
  args.state.path ||= 'sprites/rotate5.png' # path to sprite

  args.state.upsample_size ||= args.state.size * args.state.upsample

oeloeloel

# cromakey no chromakey
# removes a specified background colour from a spritesheet
# by making it transparent and exports it as a new file.

# change these values then run in DragonRuby

# path to spritesheet
INPUT_FILE = '/sprites/chroma-test-input.png'
# path to export file
OUTPUT_FILE = '/sprites/chroma-test-output.png'

oeloeloel

$gtk.reset

def tick args
  defaults args
  handle_input args
  calc args
  render args
end

def handle_input args

oeloeloel

/*
DragonRuby C Extension Pixel Array
Written by @Akzidenz-Grotesk (with help from @AlexDenisov & @Kenneth | CANICVS)
Demonstrates some quick and pretty dirty image filters
Loads image files into Pixel Array
Performs image manipulation every tick
Returns a modified 100x100 pixel image to DragonRuby
*/

#ifndef NULL

oeloeloel

# Bresenham circle for DragonRuby (basic)

RED = [255, 0, 0]

def put_pixel(args, x, y, c)
  args.outputs.solids << [x, y, 1, 1, *c]
end

def drawCircle(args, xc, yc, x, y)
  put_pixel(args, xc + x, yc + y, RED)