DragonRuby Game Toolkit - Beakers with liquids

00_preview.md

main.rb

def beaker_prefab outputs, id:, x:, y:, tip_angle:;
  base_angle = 90
  outputs[id].w = 296
  outputs[id].h = 80
  outputs[id].background_color = [0, 0, 0]

  diff_angle = base_angle + tip_angle

  outputs[id].primitives << { x: 8,           y: 8,  w: 296 - 16, h: 80 - 16, path: :solid, r: 60, g: 60, b: 60 }
  outputs[id].primitives << { x: 296 - 32,    y: 0,  w: 32,  h: 80, path: :solid, r: 180, g: 180, b: 180 }

  liquid_angle = tip_angle.clamp(-90, 0)
  liquid_angle = liquid_angle - 10 * tip_angle.vector_y

  outputs[id].primitives << { x: 80 *  3, y: 40, w: 10,  h: 80, anchor_y: 0.5, path: :solid, r: 180, g:    0, b:   0, angle: -liquid_angle }
  outputs[id].primitives << { x: 80 *  2, y: 40, w: 10,  h: 80, anchor_y: 0.5, path: :solid, r:   0, g:  180, b:   0, angle: -liquid_angle }
  outputs[id].primitives << { x: 80 *  1, y: 40, w: 10,  h: 80, anchor_y: 0.5, path: :solid, r:   0, g:    0, b: 180, angle: -liquid_angle }
  outputs[id].primitives << { x: 80 *  0, y: 40, w: 10,  h: 80, anchor_y: 0.5, path: :solid, r: 180, g:    0, b:   0, angle: -liquid_angle }

  label_style = { x: 0, y: 0, r: 255, g: 255, b: 255, size_px: 20, anchor_x: 0 }
  outputs[id].labels << { text: "base: #{base_angle}", anchor_y: -3.0, **label_style }
  outputs[id].labels << { text: "tip: #{tip_angle}",   anchor_y: -2.0, **label_style }
  outputs[id].labels << { text: "diff: #{diff_angle}", anchor_y: -1.0, **label_style }
  outputs[id].labels << { text: "liquid(x,y): #{liquid_angle.vector_x.to_sf}, #{liquid_angle.vector_y.to_sf}", anchor_y: -0.0, **label_style }

  { x: x, y: y, h: 80, w: 296, path: id, anchor_x: 0.5, anchor_y: 0.5, angle: base_angle + tip_angle }
end

def tick args
  args.outputs.primitives << beaker_prefab(args.outputs, id: :container_1, x: 190,  y: 480, tip_angle:  0)
  args.outputs.primitives << beaker_prefab(args.outputs, id: :container_2, x: 500,  y: 480, tip_angle: -15)
  args.outputs.primitives << beaker_prefab(args.outputs, id: :container_3, x: 810,  y: 480, tip_angle: -30)
  args.outputs.primitives << beaker_prefab(args.outputs, id: :container_4, x: 1090, y: 480, tip_angle: -45)

  args.outputs.primitives << beaker_prefab(args.outputs, id: :container_5, x: 190,  y: 180, tip_angle: -60)
  args.outputs.primitives << beaker_prefab(args.outputs, id: :container_6, x: 500,  y: 180, tip_angle: -75)
  args.outputs.primitives << beaker_prefab(args.outputs, id: :container_7, x: 810,  y: 180, tip_angle: -90)
  args.outputs.primitives << beaker_prefab(args.outputs, id: :container_8, x: 1120, y: 180, tip_angle: -105)
end