return {
  {
    kind = 'wall',
    x = 128,
    y = 128 + 128,
    width = 128,
    height = 64,
    z = 64
  },
  {
    kind = 'wall',
    x = 128 + 128,
    y = 128,
    width = 64,
    height = 128,
    z = 64
  },
  {
    kind = 'wall',
    x = 1600 - (128 + 128 + 64),
    y = 1200 - (128 + 128),
    width = 64,
    height = 128,
    z = 64
  },
  {
    kind = 'wall',
    x = 1600 - (128 + 128),
    y = 1200 - (128 + 128 + 64),
    width = 128,
    height = 64,
    z = 64
  },
  {
    kind = 'wall',
    x = (1600 / 2) - 32,
    y = (1200 / 2) - 128,
    width = 64,
    height = 96,
    z = 64
  },
  {
    kind = 'wall',
    x = (1600 / 2) - 128,
    y = (1200 / 2) - 32,
    width = 96,
    height = 64,
    z = 64
  },
  {
    kind = 'wall',
    x = (1600 / 2) - 32,
    y = (1200 / 2) + 32,
    width = 64,
    height = 96,
    z = 64
  },
  {
    kind = 'wall',
    x = (1600 / 2) + 32,
    y = (1200 / 2) - 32,
    width = 96,
    height = 64,
    z = 64
  },
  {
    kind = 'wall',
    x = (1600 * .25) - 96,
    y = (1200 * .75) - 96,
    width = 192,
    height = 192,
    z = 64
  },
  {
    kind = 'wall',
    x = (1600 * .75) - 96,
    y = (1200 * .25) - 96,
    width = 192,
    height = 192,
    z = 64
  },
  {
    kind = 'wall',
    x = (1600 * .5) - 128,
    y =  256,
    width = 256,
    height = 64,
    z = 64
  },
  {
    kind = 'wall',
    x = (1600 * .5) - 128,
    y = 1200 - (256 + 64),
    width = 256,
    height = 64,
    z = 64
  },
  {
    kind = 'tree',
    x = 1600 * .5,
    y = 1200 * .5,
    radius = 10
  }
}