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[z.facultad/75.68/celdas.git] / trunk / src / breve / Celdas.tz
index b9a63fbe937ba29e8888fb473dee46ec40163d1f..0d3ced587cacca4ef9423e8ded196509940c7ddf 100644 (file)
-@use PhysicalControl.
-@use Shape.
-@use Stationary.
-@use Link.
-@use MultiBody.
-
-PhysicalControl : CeldasControl {
-       % This class is used for building simple vehicle 
-       % simulations.  To create a vehicle simulation, 
-       % subclass CeldasControl and use the init method to 
-       % create OBJECT(CeldasObstacle) and 
-       % OBJECT(CeldasVehicle) objects.
-
-       + variables:
-               floor (object).
-               floorShape (object).
-               cloudTexture (object).
-
-       + to init:
-               self enable-lighting.
-                #self enable-smooth-drawing.
-
-               floorShape = new Shape.
-               floorShape init-with-cube size (200, .2, 200).
-
-               floor = new Stationary.
-               floor register with-shape floorShape at-location (0, 0, 0).
-               #floor catch-shadows.
-
-               self point-camera at (0, 0, 0) from (3, 3, 24).
-
-               #self enable-shadows.
-               #self enable-reflections.
-
-               cloudTexture = (new Image load from "images/clouds.png"). 
-               self set-background-color to (.4, .6, .9).
-               self set-background-texture-image to cloudTexture.
-}
-
-MultiBody : CeldasLightVehicle (aka CeldasLightVehicles) {
-       % This object is used in conjunction with OBJECT(CeldasControl) to
-       % create simple vehicles.
-
-       + variables:
-               bodyShape (object).
-               wheelShape (object).
-               sensorShape (object).
-               bodyLink (object).
-
-               wheels (list).
-               sensors (list).
-
-       + to init:
-               bodyShape = new Shape.
-               bodyShape init-with-cube size (4.0, .75, 3.0).  
-
-               wheelShape = new Shape.
-               wheelShape init-with-polygon-disk radius ( self get-wheel-radius ) sides 20 height ( self get-wheel-width ).
-               # 40
-
-               sensorShape = new Shape.
-               sensorShape init-with-polygon-cone radius .2 sides 5 height .5.
-               # 10
-
-               bodyShape set-density to ( self get-density ).
-               bodyLink = new Link.
-               bodyLink set-shape to bodyShape.        
-               bodyLink set-mu to -1.0.
-               bodyLink set-eT to .8.
-
-               self set-root to bodyLink.
-
-               self move to (0, 0.9, 0).
-               self set-texture-scale to 1.5.
-
-       - to get-density:
-               return 1.0.
-
-       - to get-wheel-width:
-               return 0.1.
-
-       - to get-wheel-radius:
-               return 0.6.
-
-       + section "Adding Wheels and Sensors to a Vehicle"
-
-       + to add-wheel at location (vector):
-               % Adds a wheel at location on the vehicle.  This method returns
-               % the wheel which is created, a OBJECT(CeldasWheel).
-
-               wheel, joint (object).
-
-               wheel = new CeldasWheel.
-               wheel set-shape to wheelShape.
-
-               joint = new RevoluteJoint.
-
-               joint set-relative-rotation around-axis (1, 0, 0) by 1.5708.
-               joint link parent bodyLink to-child wheel with-normal (0, 0, 1)
-                                       with-parent-point location with-child-point (0, 0, 0).
-
-               wheel set-eT to .8.
-               wheel set-texture to 0.
-               wheel set-joint to joint.
-               joint set-strength-limit to (joint get-strength-hard-limit) / 2.
-               wheel set-color to (.6, .6, .6).
-               wheel set-mu to 100000.
-
-               self add-dependency on joint.
-               self add-dependency on wheel.
-
-               push wheel onto wheels.
-
-               return wheel.
-
-       + to add-sensor at location (vector):
-               % Adds a sensor at location on the vehicle.  This method returns
-               % the sensor which is created, a OBJECT(CeldasSensor).
-
-               sensor, joint (object).
-
-               sensor = new CeldasSensor.
-               sensor set-shape to sensorShape.
-
-               joint = new RevoluteJoint.
-
-               joint set-relative-rotation around-axis (0, 0, 1) by -1.57.
-               joint link parent bodyLink to-child sensor with-normal (1, 0, 0)
-                                       with-parent-point location with-child-point (0, 0, 0).
-
-               joint set-double-spring with-strength 300 with-max 0.01 with-min -0.01.
-
-               self add-dependency on joint.
-               self add-dependency on sensor.
-
-               sensor set-color to (0, 0, 0).
-
-               push sensor onto sensors.
-
-               return sensor.
-
-       + to destroy:
-               free sensorShape.
-               free wheelShape.
-               free bodyShape.
-
-               super destroy.
-}
-
-CeldasLightVehicle : CeldasVehicle (aka CeldasVehicles) {
-       % A heavy duty version of OBJECT(CeldasLightVehicle), this
-       % vehicle is heavier and harder to control, but more stable
-       % at higher speeds.
-
-       - to get-density:
-               return 20.0.
-
-       - to get-wheel-width:
-               return 0.4.
-
-       - to get-wheel-radius:
-               return 0.8.
-}
-
-Stationary : CeldasObstacle (aka CeldasObstacles) {
-       % A CeldasObstacle is used in conjunction with OBJECT(CeldasControl)
-       % and OBJECT(CeldasVehicle).  It is what the OBJECT(CeldasSensor)
-       % objects on the CeldasVehicle detect.
-       % <p>
-       % There are no special behaviors associated with the walls--they're 
-       % basically just plain OBJECT(Stationary) objects.
-
-       + to init with-size theSize = (10, 3, .1) (vector) with-color theColor = (1, 0, 0) (vector) at-location theLocation = (0, 0, 0) (vector) with-rotation theRotation = [ ( 0, 0, 1 ), ( 0, 1, 0 ), ( 1, 0, 0 ) ] (matrix):
-               self init-with-shape shape (new Shape init-with-cube size theSize) color theColor at-location theLocation with-rotation theRotation.
-
-       + to init-with-shape shape theShape (object) color theColor = (1, 0, 0) (vector) at-location theLocation = (0, 0, 0) (vector) with-rotation theRotation = [ ( 1, 0, 0 ), ( 0, 1, 0 ), ( 0, 0, 1 ) ] (matrix):
-               self register with-shape theShape at-location theLocation with-rotation theRotation.
-               self set-color to theColor.
-}
-
-Link : CeldasWheel (aka CeldasWheels) {
-       % A CeldasWheel is used in conjunction with OBJECT(CeldasVehicle)
-       % to build Celdas vehicles.  This class is typically not instantiated
-       % manually, since OBJECT(CeldasVehicle) creates one for you when you
-       % add a wheel to the vehicle.
-
-       + variables:
-               joint (object).
-
-       - to set-joint to j (object):
-               % Used internally.
-
-               joint = j.
-
-       + section "Configuring the Wheel's Velocity"
-
-       + to set-velocity to n (float):
-               % Sets the velocity of this wheel.
-
-               joint set-joint-velocity to n.
-
-       + to get-velocity:
-               % Gets the velocity of this wheel.
-               
-               return (joint get-joint-velocity).
-
-}
-
-Link : CeldasSensor (aka CeldasSensors) {
-       % A CeldasSensor is used in conjunction with OBJECT(CeldasVehicle)
-       % to build Celdas vehicles.  This class is typically not instantiated
-       % manually, since OBJECT(CeldasVehicle) creates one for you when you
-       % add a sensor to the vehicle.
-
-       + variables:
-               direction (vector).
-               sensorAngle (float).
-               value (float).
-
-       + to init:
-               direction = (0, 1, 0).
-               sensorAngle = 1.6.
-               value = 0.0.
-
-  + section "Configuring the Sensor Values"
-
-       + to set-sensor-angle to n (float):
-               % Sets the angle in which this sensor can detect obstacles.  The default
-               % value of 1.6 means that the sensor can see most of everything in
-               % front of it.  Setting the value to be any higher leads to general
-               % wackiness, so I don't suggest it.
-
-               sensorAngle = n.
-
-  + section "Getting the Sensor Values"
-
-       + to get-sensor-value:
-               % Gets the sensor value. This should be used from post-iterate,
-               % if not, the sensor reading correspond to the previous
-               % iteration.
-
-               return value.
-
-       + to iterate:
-               i (object).
-               strength, angle (float).
-               toObstacle, transDir (vector).
-
-               transDir = (self get-rotation) * direction.
-
-               value = 0.0.
-
-               foreach i in (all CeldasObstacles): {
-                       toObstacle = (i get-location) - (self get-location).
-                       angle = angle(toObstacle, transDir).
-
-                       if angle < sensorAngle: {
-                               strength = | (self get-location) - (i get-location) |.
-                               strength = 100.0 / (strength * strength) .
-
-                               if strength > value: value = strength.
-                       }
-               }
-
-}
+@use PhysicalControl.\r
+@use Shape.\r
+@use Stationary.\r
+@use Link.\r
+@use MultiBody.\r
+@use Drawing.\r
+@use SistemaAutonomo.\r
+\r
+@define CELDAS_MAX_VELOCITY 30.\r
+@define CELDAS_TURNO 100.\r
+\r
+PhysicalControl : CeldasControl {\r
+       % This class is used for building simple vehicle \r
+       % simulations.  To create a vehicle simulation, \r
+       % subclass CeldasControl and use the init method to \r
+       % create OBJECT(CeldasObstacle) and \r
+       % OBJECT(CeldasVehicle) objects.\r
+\r
+       + variables:\r
+               floor (object).\r
+               floorShape (object).\r
+               cloudTexture (object).\r
+\r
+\r
+       + to init:\r
+               self enable-lighting.\r
+                #self enable-smooth-drawing.\r
+\r
+               floorShape = new Shape.\r
+               floorShape init-with-cube size (200, .2, 200).\r
+\r
+               floor = new Stationary.\r
+               floor register with-shape floorShape at-location (0, 0, 0).\r
+               #floor catch-shadows.\r
+\r
+               self point-camera at (0, 0, 0) from (3, 3, 24).\r
+\r
+               #self enable-shadows.\r
+               #self enable-reflections.\r
+\r
+               cloudTexture = (new Image load from "images/clouds.png"). \r
+               self set-background-color to (.4, .6, .9).\r
+               self set-background-texture-image to cloudTexture.\r
+\r
+}\r
+\r
+MultiBody : CeldasLightVehicle (aka CeldasLightVehicles) {\r
+       % This object is used in conjunction with OBJECT(CeldasControl) to\r
+       % create simple vehicles.\r
+\r
+       + variables:\r
+               bodyShape (object).\r
+               wheelShape (object).\r
+               sensorShape (object).\r
+               bodyLink (object).\r
+\r
+               wheels (list).\r
+               sensors (list).\r
+\r
+       + to init:\r
+               bodyShape = new Shape.\r
+               bodyShape init-with-cube size (4.0, .75, 3.0).  \r
+\r
+               wheelShape = new Shape.\r
+               wheelShape init-with-polygon-disk radius ( self get-wheel-radius ) sides 20 height ( self get-wheel-width ).\r
+               # 40\r
+\r
+               sensorShape = new Shape.\r
+               sensorShape init-with-polygon-cone radius .2 sides 5 height .5.\r
+               # 10\r
+\r
+               bodyShape set-density to ( self get-density ).\r
+               bodyLink = new Link.\r
+               bodyLink set-shape to bodyShape.        \r
+               bodyLink set-mu to -1.0.\r
+               bodyLink set-eT to .8.\r
+\r
+               self set-root to bodyLink.\r
+\r
+               self move to (0, 0.9, 0).\r
+               self set-texture-scale to 1.5.\r
+\r
+       - to get-density:\r
+               return 1.0.\r
+\r
+       - to get-wheel-width:\r
+               return 0.1.\r
+\r
+       - to get-wheel-radius:\r
+               return 0.6.\r
+\r
+       + section "Adding Wheels and Sensors to a Vehicle"\r
+\r
+       + to add-wheel at location (vector):\r
+               % Adds a wheel at location on the vehicle.  This method returns\r
+               % the wheel which is created, a OBJECT(CeldasWheel).\r
+\r
+               wheel, joint (object).\r
+\r
+               wheel = new CeldasWheel.\r
+               wheel set-shape to wheelShape.\r
+\r
+               joint = new RevoluteJoint.\r
+\r
+               joint set-relative-rotation around-axis (1, 0, 0) by 1.5708.\r
+               joint link parent bodyLink to-child wheel with-normal (0, 0, 1)\r
+                                       with-parent-point location with-child-point (0, 0, 0).\r
+\r
+               wheel set-eT to .8.\r
+               wheel set-texture to 0.\r
+               wheel set-joint to joint.\r
+               joint set-strength-limit to (joint get-strength-hard-limit) / 2.\r
+               wheel set-color to (.6, .6, .6).\r
+               wheel set-mu to 100000.\r
+\r
+               self add-dependency on joint.\r
+               self add-dependency on wheel.\r
+\r
+               push wheel onto wheels.\r
+\r
+               return wheel.\r
+\r
+       + to add-sensor at location (vector) with-direction direction = (0,1,0)(vector) :\r
+               % Adds a sensor at location on the vehicle.  This method returns\r
+               % the sensor which is created, a OBJECT(CeldasSensor).\r
+\r
+               sensor, joint (object).\r
+\r
+               sensor = new CeldasSensor.\r
+                sensor set-direction to direction.\r
+                \r
+               sensor set-shape to sensorShape.\r
+\r
+               joint = new RevoluteJoint.\r
+\r
+               joint set-relative-rotation around-axis (0, 0, 1) by -1.57.\r
+               joint link parent bodyLink to-child sensor with-normal (1, 0, 0)\r
+                                       with-parent-point location with-child-point (0, 0, 0).\r
+\r
+               joint set-double-spring with-strength 300 with-max 0.01 with-min -0.01.\r
+\r
+               self add-dependency on joint.\r
+               self add-dependency on sensor.\r
+\r
+               sensor set-color to (0, 0, 0).\r
+\r
+               #push sensor onto sensors.\r
+\r
+               return sensor.\r
+\r
+       + to destroy:\r
+               free sensorShape.\r
+               free wheelShape.\r
+               free bodyShape.\r
+\r
+               super destroy.\r
+}\r
+\r
+CeldasLightVehicle : CeldasVehicle (aka CeldasVehicles) {\r
+       % A heavy duty version of OBJECT(CeldasLightVehicle), this\r
+       % vehicle is heavier and harder to control, but more stable\r
+       % at higher speeds.\r
+        +variables:\r
+               lSensor, rSensor, fSensor, bSensor (object).\r
+               lfWheel,rfWheel,lbWheel,rbWheel (object).\r
+               tleft,tright (int).         \r
+               avanzando,retrocediendo,girando_izq,girando_der(int).       \r
+               iterate(int).\r
+               teorias (list).\r
+               sa (object).\r
+               teoria (object).\r
+               entorno (hash).\r
+               datos-finales (hash).\r
+               plan_finished (int).\r
+        \r
+       - to get-density:\r
+               return 20.0.\r
+\r
+       - to get-wheel-width:\r
+               return 0.4.\r
+\r
+       - to get-wheel-radius:\r
+               return 0.8.\r
+\r
+        + to set-global-velocity to velocity (float):\r
+               rfWheel set-velocity to velocity.\r
+               lfWheel set-velocity to velocity.\r
+               rbWheel set-velocity to velocity.\r
+               lbWheel set-velocity to velocity.\r
+\r
+       + to get-global-velocity:\r
+               return ((rfWheel get-velocity) + (lfWheel get-velocity)) / 2.\r
+\r
+       + to turn-right:                \r
+               tright++.\r
+\r
+               self rotate around-axis (0,1,0) by (-1.5709/CELDAS_TURNO)*tright. \r
+                       \r
+               if (tright == CELDAS_TURNO): tright=0.\r
+\r
+\r
+       + to turn-left:\r
+               tleft++.\r
+\r
+               self rotate around-axis (0,1,0) by (1.5709/CELDAS_TURNO)*tleft. \r
+                       \r
+               if (tleft == CELDAS_TURNO): tleft=0.\r
+\r
+\r
+        + to get-sensor-value:\r
+               return (fSensor get-sensor-value).\r
+\r
+       +to update-entorno:\r
+               entorno{"sensor_f"} = (fSensor get-data).\r
+               entorno{"sensor_b"} = (bSensor get-data).\r
+               entorno{"sensor_r"} = (rSensor get-data).\r
+               entorno{"sensor_l"} = (lSensor get-data).\r
+               entorno{"movido"} = 0. # TODO\r
+               sa update-entorno with entorno.            \r
+\r
+        +to init:\r
+               # Configuracion de robot\r
+               fSensor = (self add-sensor at (2.0, .4, 0)).            \r
+               fSensor set-direction to (1,0,0).\r
+               #fSensor set-direction to (0,0,1).\r
+               fSensor set-id at 1.\r
+               fSensor set-body at self.\r
+               bSensor = (self add-sensor at (-2.0, .4, 0)).\r
+               bSensor set-direction to (-1,0,0).\r
+               #bSensor set-direction to (0,0,1).\r
+               bSensor set-id at 2.\r
+               bSensor set-body at self.\r
+               lSensor = (self add-sensor at (0, .4, 1.5)).\r
+               lSensor set-direction to (0,0,1).\r
+               #lSensor set-direction to (1,0,0).\r
+               lSensor set-id at 3.\r
+               lSensor set-body at self.\r
+\r
+               rSensor = (self add-sensor at (0, .4, -1.5)).\r
+               rSensor set-direction to (0,0,-1).\r
+               #rSensor set-direction to (-1,0,0).\r
+               rSensor set-id at 4.\r
+               rSensor set-body at self.\r
+\r
+               lfWheel = (self add-wheel at (2, 0, -1.5)).\r
+               lbWheel = (self add-wheel at (-2, 0, -1.5)).\r
+               rfWheel = (self add-wheel at (2, 0, 1.5)).\r
+               rbWheel = (self add-wheel at (-2, 0, 1.5)).\r
+\r
+               tleft=tright=0.\r
+               avanzando=0.\r
+               retrocediendo=0.\r
+               girando_izq=0.            \r
+               girando_der=0.            \r
+\r
+               # Configuracion de sistema autonomo\r
+               sa = new SistemaAutonomo.\r
+               iterate = 0.\r
+               plan_finished = 1. # así planificamos apenas empezamos\r
+\r
+               teorias = 4 new Teorias.\r
+               teorias{0} init named "Avanzar" with-action "adelante".\r
+               teorias{0} set-dato-inicial name "sensor_f" value 0.\r
+               teorias{0} set-dato-inicial name "sensor_b" value ANY.\r
+               teorias{0} set-dato-inicial name "sensor_r" value ANY.\r
+               teorias{0} set-dato-inicial name "sensor_l" value ANY.\r
+               teorias{0} set-dato-inicial name "movido" value ANY.\r
+               teorias{0} set-dato-final name "sensor_f" value ANY.\r
+               teorias{0} set-dato-final name "sensor_b" value ANY.\r
+               teorias{0} set-dato-final name "sensor_r" value ANY.\r
+               teorias{0} set-dato-final name "sensor_l" value ANY.\r
+               teorias{0} set-dato-final name "movido" value 1.\r
+\r
+               teorias{1} init named "Retroceder" with-action "atras".\r
+               teorias{1} set-dato-inicial name "sensor_f" value 1.\r
+               teorias{1} set-dato-inicial name "sensor_b" value ANY.\r
+               teorias{1} set-dato-inicial name "sensor_r" value ANY.\r
+               teorias{1} set-dato-inicial name "sensor_l" value ANY.\r
+               teorias{1} set-dato-inicial name "movido" value ANY.\r
+               teorias{1} set-dato-final name "sensor_f" value 0.\r
+               teorias{1} set-dato-final name "sensor_b" value ANY.\r
+               teorias{1} set-dato-final name "sensor_r" value ANY.\r
+               teorias{1} set-dato-final name "sensor_l" value ANY.\r
+               teorias{1} set-dato-final name "movido" value 1.\r
+\r
+               teorias{2} init named "Rotar a derecha" with-action "derecha".\r
+               teorias{2} set-dato-inicial name "sensor_f" value 1.\r
+               teorias{2} set-dato-inicial name "sensor_b" value ANY.\r
+               teorias{2} set-dato-inicial name "sensor_r" value ANY.\r
+               teorias{2} set-dato-inicial name "sensor_l" value ANY.\r
+               teorias{2} set-dato-inicial name "movido" value ANY.\r
+               teorias{2} set-dato-final name "sensor_f" value 0.\r
+               teorias{2} set-dato-final name "sensor_b" value ANY.\r
+               teorias{2} set-dato-final name "sensor_r" value ANY.\r
+               teorias{2} set-dato-final name "sensor_l" value 1.\r
+               teorias{2} set-dato-final name "movido" value 0.\r
+\r
+               teorias{3} init named "Rotar a izquierda" with-action "izquierda".\r
+               teorias{3} set-dato-inicial name "sensor_f" value 1.\r
+               teorias{3} set-dato-inicial name "sensor_b" value ANY.\r
+               teorias{3} set-dato-inicial name "sensor_r" value ANY.\r
+               teorias{3} set-dato-inicial name "sensor_l" value ANY.\r
+               teorias{3} set-dato-inicial name "movido" value ANY.\r
+               teorias{3} set-dato-final name "sensor_f" value 0.\r
+               teorias{3} set-dato-final name "sensor_b" value ANY.\r
+               teorias{3} set-dato-final name "sensor_r" value 1.\r
+               teorias{3} set-dato-final name "sensor_l" value ANY.\r
+               teorias{3} set-dato-final name "movido" value 0.\r
+\r
+               sa add teoria teorias{0}.\r
+               sa add teoria teorias{1}.\r
+               sa add teoria teorias{2}.\r
+               sa add teoria teorias{3}.\r
+\r
+               datos-finales{"movido"} = 1.\r
+               sa update-datos-finales with datos-finales.\r
+\r
+        +to iterate:\r
+               fl, fr(float).\r
+\r
+               if (0): # TODO posicion_final == posicion_actual\r
+               {\r
+                       print "Llegamos al FINAL!!!".\r
+                       return.\r
+               }\r
+\r
+               if (plan_finished):\r
+               {\r
+                       self update-entorno.\r
+                       sa plan. # Si no tenemos plan, lo hacemos\r
+                       plan_finished = 0.\r
+                       # TODO posicion_inicial = posicion_actual\r
+                       if (! (sa has-next-theory)):\r
+                       {\r
+                               plan_finished = 1.\r
+                               print "El planificador no encuentra PLAN!!!".\r
+                               return.\r
+                       }\r
+               }\r
+\r
+               if (iterate == 0):\r
+               {\r
+                       print "iteracion 0".\r
+                       if (sa has-next-theory):\r
+                       {\r
+                               print "hay teoria".\r
+                               teoria = sa get-next-theory.\r
+                               if ((teoria get-accion) == "adelante"):\r
+                               {\r
+                                       avanzando = 1.\r
+                                       retrocediendo = 0.\r
+                                       girando_izq = 0.\r
+                                       girando_der = 0.\r
+                               }\r
+                               if ((teoria get-accion) == "atras"):\r
+                               {\r
+                                       avanzando = 0.\r
+                                       retrocediendo = 1.\r
+                                       girando_izq = 0.\r
+                                       girando_der = 0.\r
+                               }\r
+                               if ((teoria get-accion) == "izquierda"):\r
+                               {\r
+                                       avanzando = 0.\r
+                                       retrocediendo = 0.\r
+                                       girando_izq = 1.\r
+                                       girando_der = 0.\r
+                               }\r
+                               if ((teoria get-accion) == "derecha"):\r
+                               {\r
+                                       avanzando = 0.\r
+                                       retrocediendo = 0.\r
+                                       girando_izq = 0.\r
+                                       girando_der = 1.\r
+                               }\r
+                       }\r
+               }\r
+\r
+               if (iterate == CELDAS_TURNO):\r
+               {\r
+                       self update-entorno.\r
+                       # TODO if (posicion_actual == posicion_inicial): movido = false. else movido = true.\r
+                       if (sa validate theory teoria):\r
+                       {\r
+                               print "valida".\r
+                       }\r
+                       else\r
+                       {\r
+                               print "Teoria no valida".\r
+                               plan_finished = 1.\r
+                       }\r
+               }\r
+\r
+               iterate++.\r
+               if (iterate == CELDAS_TURNO + 1):\r
+                       iterate = 0.\r
+\r
+               # Movimiento del robot\r
+               if (avanzando):\r
+                       self set-global-velocity to (15).\r
+               if (retrocediendo):\r
+                       self set-global-velocity to (-15).\r
+               if (girando_izq):\r
+                       self turn-left.\r
+               if (girando_der):\r
+                       self turn-right.\r
+\r
+}\r
+\r
+Stationary : CeldasObstacle (aka CeldasObstacles) {\r
+       % A CeldasObstacle is used in conjunction with OBJECT(CeldasControl)\r
+       % and OBJECT(CeldasVehicle).  It is what the OBJECT(CeldasSensor)\r
+       % objects on the CeldasVehicle detect.\r
+       % <p>\r
+       % There are no special behaviors associated with the walls--they're \r
+       % basically just plain OBJECT(Stationary) objects.\r
+   \r
+        +variables:\r
+            large (float).\r
+           direction (vector). \r
+\r
+\r
+       + to init with-size theSize = (10, 3, .1) (vector) with-color theColor = (1, 0, 0) (vector) at-location theLocation = (0, 0, 0) (vector) with-rotation theRotation = [ ( 0, 0, 1 ), ( 0, 1, 0 ), ( 1, 0, 0 ) ] (matrix):                    \r
+               self init-with-shape shape (new Shape init-with-cube size theSize) color theColor at-location theLocation with-rotation theRotation.\r
+                large=20.\r
+\r
+       + to init-with-shape shape theShape (object) color theColor = (1, 0, 0) (vector) at-location theLocation = (0, 0, 0) (vector) with-rotation theRotation = [ ( 1, 0, 0 ), ( 0, 1, 0 ), ( 0, 0, 1 ) ] (matrix):\r
+               self register with-shape theShape at-location theLocation with-rotation theRotation.\r
+               self set-color to theColor.\r
+                \r
+        + to get-large:\r
+            return large.\r
+\r
+       + to set-direction at theDirection (vector):\r
+           direction=theDirection.\r
+\r
+       + to get-direction:\r
+           return direction.\r
+}\r
+\r
+Link : CeldasWheel (aka CeldasWheels) {\r
+       % A CeldasWheel is used in conjunction with OBJECT(CeldasVehicle)\r
+       % to build Celdas vehicles.  This class is typically not instantiated\r
+       % manually, since OBJECT(CeldasVehicle) creates one for you when you\r
+       % add a wheel to the vehicle.\r
+\r
+       + variables:\r
+               joint (object).\r
+               velocity (float).\r
+\r
+       + to init:\r
+               velocity = 0.\r
+\r
+       - to set-joint to j (object):\r
+               % Used internally.\r
+\r
+               joint = j.\r
+\r
+       + section "Configuring the Wheel's Velocity"\r
+\r
+       + to set-velocity to n (float):\r
+               % Sets the velocity of this wheel.\r
+\r
+               if n > CELDAS_MAX_VELOCITY: n = CELDAS_MAX_VELOCITY.\r
+               velocity = n.\r
+\r
+               joint set-joint-velocity to velocity.\r
+\r
+       + to get-velocity:\r
+               % Gets the velocity of this wheel.\r
+               \r
+               return velocity.\r
+\r
+}\r
+\r
+Link : CeldasSensor (aka CeldasSensors) {\r
+       % A CeldasSensor is used in conjunction with OBJECT(CeldasVehicle)\r
+       % to build Celdas vehicles.  This class is typically not instantiated\r
+       % manually, since OBJECT(CeldasVehicle) creates one for you when you\r
+       % add a sensor to the vehicle.\r
+\r
+       + variables:\r
+               direction (vector).\r
+                positiveDirection(vector).\r
+               sensorAngle (float).\r
+               value (float).\r
+                draw (object).\r
+               body(object).\r
+                id(int).\r
+\r
+       + to init :\r
+               direction = (1,0,1).\r
+                positiveDirection= (1,0,1).\r
+               sensorAngle = 1.6.\r
+               value = 0.0.\r
+                draw = new Drawing.\r
+                               \r
+\r
+  + section "Configuring the Sensor Values"\r
+        + to set-id at n (int):\r
+            id=n.\r
+\r
+       + to set-body at robotBody(object):\r
+               body=robotBody.\r
+               \r
+       + to set-sensor-angle to n (float):\r
+               % Sets the angle in which this sensor can detect obstacles.  The default\r
+               % value of 1.6 means that the sensor can see most of everything in\r
+               % front of it.  Setting the value to be any higher leads to general\r
+               % wackiness, so I don't suggest it.\r
+\r
+               sensorAngle = n.\r
+\r
+        + to set-direction to n (vector):\r
+                direction = n.\r
+                positiveDirection::x=|n::x|.\r
+                positiveDirection::y=|n::y|.\r
+                positiveDirection::z=|n::z|.\r
+\r
+  + section "Getting the Sensor Values"\r
+\r
+       + to get-sensor-value:\r
+               % Gets the sensor value. This should be used from post-iterate,\r
+               % if not, the sensor reading correspond to the previous\r
+               % iteration.\r
+        \r
+        #+ to iterate:\r
+        \r
+       + to get-data:\r
+               i (object).\r
+               min,dist (float).\r
+                v,obs(vector).\r
+               aux(float).\r
+               j (int).\r
+               des2,des3(int).\r
+               wallBegin,wallEnd,wallCenter (float).\r
+                \r
+               toObstacle(vector).\r
+                largeWall (float).\r
+                \r
+                obsLoc (vector).                \r
+                location (vector).\r
+                posObstacle,destiny,yo(vector).\r
+                                             \r
+               draw clear.\r
+               value = 0.0.\r
+               j=0.\r
+               min=0.\r
+               foreach i in (all CeldasObstacles): \r
+                       {\r
+                        posObstacle=i get-location.\r
+                        v = (body get-location) - (self get-location ).\r
+                        obsLoc::y=posObstacle::y.\r
+                        \r
+                        if (dot((i get-direction),(1,0,0))):\r
+                         {\r
+                          obsLoc::x=((self get-location)::x + ((posObstacle::z - (self get-location)::z)*v::x/v::z)).\r
+                           obsLoc::z=posObstacle::z.\r
+                         }                             \r
+                         else\r
+                         {\r
+                          obsLoc::z=((self get-location)::z + ((posObstacle::x - (self get-location)::x)*v::z/v::x)).\r
+                           obsLoc::x=posObstacle::x.\r
+                         } \r
+                                                               \r
+                       #!\r
+                       if(dot((i get-direction),direction)==0):\r
+                               des1=1.\r
+                       else\r
+                               des1=0.\r
+                       !#\r
+\r
+                       des2=0.\r
+                       if(dot(direction,(1,1,1))<0):\r
+                       {                        \r
+                            if((dot((self get-location),positiveDirection))>(dot(obsLoc,positiveDirection))):\r
+                                       des2=1.      \r
+                        }\r
+                       else\r
+                       {\r
+                            if((dot((self get-location),positiveDirection))<(dot(obsLoc,positiveDirection))):\r
+                                       des2=1.         \r
+                       }                       \r
+\r
+\r
+                       #Compruebo que el robot este frente a la pared\r
+                       wallCenter=dot((i get-location),(i get-direction)).\r
+                       wallBegin=wallCenter- (i get-large)/2.\r
+                       wallEnd=wallCenter + (i get-large)/2.           \r
+\r
+                       \r
+                       yo=self get-location.\r
+                       destiny=i get-direction.\r
+\r
+                                                                                                               \r
+\r
+                       if (dot((self get-location),(i get-direction)) > wallBegin) && (dot((self get-location),(i get-direction)) < wallEnd):\r
+                               des3=1.\r
+                       else\r
+                       {\r
+                                des3=0.\r
+                                \r
+                       }                               \r
+                       \r
+                       if ((des2) && (des3)):\r
+                         {                                    \r
+                               draw clear.\r
+\r
+                               dist=|obsLoc - (self get-location)|.\r
+                               if( (j==0) || (min>dist) ):\r
+                                {\r
+                                       min=dist.\r
+                                       obs=obsLoc.\r
+                                       j++.\r
+                                       #print "sensor: $id obstaculo: $posObstacle direP: $destiny direS: $direction yo: $yo ".        \r
+                                }\r
+\r
+                        }                                              \r
+\r
+                        \r
+               } #end for\r
+\r
+               if(j!=0):\r
+                       {\r
+                         #Dibujo el laser\r
+                                 draw set-color to (1, 0, 0).\r
+                         draw draw-line from (self get-location) to (obs).\r
+                         return min.\r
+                       }\r
+               \r
+\r
+                value = -1.\r
+                return value.\r
+\r
+\r
+}\r
+               \r