3d1

os.loadAPI('vr')
cx,cy,cz=-423,6,-182
vr.CreateWorld('monitor_0','monitor_1','monitor_2','monitor_3')
p=peripheral.wrap('bottom')
user=p.getPlayerByName(({...})[1])
if not user then return end
ent=user.asEntity()
ent.setPosition(cx,cy,cz)

function tree(self)
  local h=2
  vr.vline(0,h/4,0,0,colors.brown)
  vr.wall(-1,0,   h/4,1.5*h,h/4,  0,0,self.col)
  vr.wall(0,0,    h/4,1.5*h,h/4, -1,0,self.col)
  vr.wall(1,0,    h/4,1.5*h,h/4,  0,0,self.col)
  vr.wall(0,0,    h/4,1.5*h,h/4,  1,0,self.col)
  vr.wall(-0.75,0,h,2*h,h,        0,0,self.col)
  vr.wall(0,0,    h,2*h,h,        -0.75,0,self.col)
  vr.wall(0.75,0, h,2*h,h,        0,0,    self.col)
  vr.wall(0,0,    h,2*h,h,        0.75,0, self.col)
end

vr.CreateObj(-2,0,4,tree,{col=colors.lime})
vr.CreateObj( 2,0,4,tree,{col=colors.yellow})

while true do
--[[  vr.wall(-1.5,1.5,1,1,0,5.99,5.99,colors.red,colors.yellow)
  vr.wall(-1.5,-0.5,2,2,1,5.99,5.99,colors.red,colors.yellow)
  vr.wall(0.5,1.5,2,2,1,5.99,5.99,colors.red,colors.yellow)
  vr.wall(-2,0,2,3.5,2,5.99,5.99,colors.red,colors.yellow)
  vr.wall(0,2,3.5,2,2,5.99,5.99,colors.red,colors.yellow)
  vr.wall(1.5,-1.5,2,2,0,10,10,colors.red,colors.yellow)
  vr.wall(0,-2,3.5,2,2,10,10,colors.red,colors.yellow)
  vr.wall(2,0,2,3.5,2,10,10,colors.red,colors.yellow)
  vr.wall(-1.5,-1.5,2,2,0,10,6,colors.red,colors.yellow)
  vr.wall(1.5,1.5,2,2,0,6,10,colors.red,colors.yellow)
  for z=5.9,10.1,0.1 do
    vr.line(-2,0,2,3.5,z,z,colors.brown)
    vr.line( 2,0,2,3.5,z,z,colors.brown)
  end]]
  vr.draw()

  repeat
    sleep(0)
    x,y,z=ent.getPosition()
    if not x or math.abs(x-cx)>3 or math.abs(z-cz)>3 then return end
    if y>cy+0.5 then ent.setPosition(cx,cy,cz+6) return end
  until math.abs(x-cx)>0.1 or math.abs(z-cz)>0.1
  vr.movePlayer(x-cx,0,cz-z)
  ent.setPosition(cx,cy,cz)
end