#VRML V2.0 utf8

#Prototype of cpu.
PROTO CPU [
	exposedField SFInt32 state 1
	exposedField SFVec3f translation 0 0 0
	] 
{ 

  EXTERNPROTO GLASS[] "glass.wrl"
  EXTERNPROTO BEAD[field SFColor color] "bead.wrl"

  Transform { 
    translation IS translation
    children [
      Shape {
        geometry Box { size 1 1 0.5 }
        appearance Appearance { material GLASS {} }
      }
	Switch {
	  whichChoice IS state
	  choice [
          Shape {
            geometry Box { size 0.6 0.4 0.2 }
            appearance Appearance { material BEAD {color 0 1 0 } }
	    }
          Shape {
            geometry Box { size 0.6 0.4 0.2 }
            appearance Appearance { material BEAD {color 1 0 0 } }
	    }
	  ]
      }
    ]
  }
}

CPU { state 0 translation 0 0 1 }
CPU { state 1 translation 0 1 0 }