#VRML V2.0 utf8

WorldInfo {
   title "永恒"
   info [
      "Author: 金臂螳螂",
      "Date: March 1, 1998 (Sun)"
   ]
}

NavigationInfo {
   type "EXAMINE"
}

Background {
      groundAngle [0.523, 1.047, 1.571]
      groundColor [0 0 0, 0 0 1, 0 0 1, 0 1 1]
      skyAngle [0.523, 1.047, 1.571]
      skyColor [1 1 1, 1 1 1, 0 1 1, 0 1 1]
}

Group {
   children [
      DEF EntryView Viewpoint { #此虚拟实境亦规定了进入，内外三个视点。
      fieldOfView 1.57
      orientation 1 0 0 0.79
      position 0.0 -7.0 10.0
      description "EntryView"
      },

      DEF Outside Viewpoint {
	 position 0 0 40       
	 description "Outside" 
      },

      DEF Inside Viewpoint {
	 position 0 0 6	      
	 description "Inside" 
      }
   ]
}


Group {
   children [
      DEF Lee Transform {
	 children Shape {
	    appearance Appearance {
	       material Material {
		  emissiveColor 1.0 0.5 0.0
		  }
          texture ImageTexture {url "stand.gif"}  #粘贴图案为李小龙。
	    }
	    geometry Box {size 3 3 3}   #立方体
	 },
      },
 
       DEF Lee Transform {
	 children Shape {
	    appearance Appearance {
	       material Material {
		  emissiveColor 1.0 0.5 0.0
              transparency 0.8   #颜色及透明的协调形成一雾状球网。
		  }
	    }
	    geometry Sphere {radius 10}    #圆球
	 },
      },

      DEF Long Transform {
	 translation 4.0 0.0 0.0
	 center -4.0 0.0 0.0
	 children [
	    Shape {
	       appearance Appearance {
		  material Material {
		     diffuseColor 0.0 0.0 1.0
		     specularColor 0.9 0.9 0.9
		     shininess 0.3
		  }
             texture ImageTexture {url "reptile.gif"}  #粘贴图案为龙。              
	       }
	       geometry Sphere { radius 0.5 }    #球A，绕立方体(李小龙)旋转。
	    },

	    DEF Snake Transform {
	       translation 1.0 0.0 0.0
	       center -1.0 0.0 0.0
	       children Shape {
		  appearance Appearance {
		     material Material {
			diffuseColor 0.7 0.7 0.7
			shininess 1.3
		     }
		  }
		  geometry Sphere {radius 0.2}   #球B，绕球A旋转。
	       }
	    }
	 ]
      },

      DEF Bruce TimeSensor {
	 cycleInterval 8.0
	 loop TRUE
      },

      DEF Reptile TimeSensor {
	 cycleInterval 5.0
	 loop TRUE
      },

      DEF Serpent TimeSensor {
	 cycleInterval 2.0
	 loop TRUE
      },

      DEF LeePath OrientationInterpolator {
	 key [ 0.0, 0.50, 1.0 ]
	 keyValue [ 0.0 0.0 1.0  0.0,
		    0.0 0.0 1.0  3.14,
		    0.0 0.0 1.0  6.28 ]
      },

      DEF LongPath OrientationInterpolator {
	 key [ 0.0, 0.50, 1.0 ]
	 keyValue [ 0.0 0.0 1.0  0.0,
		    0.0 0.0 1.0  3.14,
		    0.0 0.0 1.0  6.28 ]
      },

      DEF SnakePath OrientationInterpolator {
	 key [ 0.0, 0.50, 1.0 ]
	 keyValue [ 0.0 0.0 1.0  0.0,
		    0.0 0.0 1.0  3.14,
		    0.0 0.0 1.0  6.28 ]
      }
   ]
}

ROUTE Bruce.fraction_changed	 TO LeePath.set_fraction
ROUTE Reptile.fraction_changed TO LongPath.set_fraction
ROUTE Serpent.fraction_changed TO SnakePath.set_fraction
ROUTE LeePath.value_changed	 TO Lee.set_rotation
ROUTE LongPath.value_changed	 TO Long.set_rotation
ROUTE SnakePath.value_changed	 TO Snake.set_rotation

#以上事件的设计教为复杂，不再赘述。提纲掣领，慢慢推求，自然明澈。
#不过一点数理，又有何难？
#学而不知数理，犹如宝镜微尘，世上六艺乱纷纷，数乃人之根本。
#聪明蒙童易得，愚昧皓首难成，漫同高士细评论，算成无差分寸。