Package net.dermetfan.gdx.physics.box2d

Class PositionController

java.lang.Object
net.dermetfan.gdx.physics.box2d.PositionController
Direct Known Subclasses:
PositionController.D, PositionController.P, PositionController.PD
public abstract class PositionController
extends java.lang.Object
moves a body to a position using forces
Since:
0.11.1

  • Nested Class Summary

    Nested Classes
    Modifier and Type Class Description
    static class  PositionController.D
    the derivative control loop component
    static class  PositionController.P
    the proportional control loop component
    static class  PositionController.PD
    a proportional-derivative controller

  • Field Summary

    Fields
    Modifier and Type Field Description
    static net.dermetfan.utils.Function<java.lang.Object,​PositionController> defaultUserDataAccessor
    returns the argument if it is a PositionController
    protected static com.badlogic.gdx.math.Vector2 vec2
    shared instance for internal use

  • Constructor Summary

    Constructors
    Constructor Description
    PositionController()  

  • Method Summary

    Modifier and Type Method Description
    com.badlogic.gdx.math.Vector2 applyForce​(com.badlogic.gdx.physics.box2d.Body body, com.badlogic.gdx.math.Vector2 point, boolean wake)
    applies the necessary force at the given point
    com.badlogic.gdx.math.Vector2 applyForceToCenter​(com.badlogic.gdx.physics.box2d.Body body, boolean wake)
    applies the necessary force at the center of mass of the Body
    static void applyForceToCenter​(com.badlogic.gdx.physics.box2d.World world, boolean wake)
    Calls applyForceToCenter for every Body with a PositionController in its user data.
    abstract com.badlogic.gdx.math.Vector2 calculateForce​(com.badlogic.gdx.physics.box2d.Body body, com.badlogic.gdx.math.Vector2 point)  
    abstract com.badlogic.gdx.math.Vector2 calculateForceToCenter​(com.badlogic.gdx.physics.box2d.Body body)  
    static net.dermetfan.utils.Function<java.lang.Object,​PositionController> getUserDataAccessor()  
    static void setUserDataAccessor​(net.dermetfan.utils.Function<java.lang.Object,​PositionController> userDataAccessor)  

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • vec2

      protected static final com.badlogic.gdx.math.Vector2 vec2
      shared instance for internal use

    • defaultUserDataAccessor

      public static final net.dermetfan.utils.Function<java.lang.Object,​PositionController> defaultUserDataAccessor
      returns the argument if it is a PositionController

  • Constructor Details

    • PositionController

      public PositionController()

  • Method Details

    • applyForceToCenter

      public static void applyForceToCenter​(com.badlogic.gdx.physics.box2d.World world, boolean wake)
      Calls applyForceToCenter for every Body with a PositionController in its user data. The PositionController is accessed using the userDataAccessor.
      Parameters:
      world - the world which Bodies to iterate over

    • calculateForce

      public abstract com.badlogic.gdx.math.Vector2 calculateForce​(com.badlogic.gdx.physics.box2d.Body body, com.badlogic.gdx.math.Vector2 point)
      Parameters:
      point - the world point at which the force should be applied
      Returns:
      the force to apply at the given point

    • calculateForceToCenter

      public abstract com.badlogic.gdx.math.Vector2 calculateForceToCenter​(com.badlogic.gdx.physics.box2d.Body body)
      Returns:
      the force to apply at the center of mass of the Body

    • applyForce

      public com.badlogic.gdx.math.Vector2 applyForce​(com.badlogic.gdx.physics.box2d.Body body, com.badlogic.gdx.math.Vector2 point, boolean wake)
      applies the necessary force at the given point
      Parameters:
      point - the world point at which to apply the force
      Returns:
      the force applied, calculated by calculateForce(Body, Vector2)

    • applyForceToCenter

      public com.badlogic.gdx.math.Vector2 applyForceToCenter​(com.badlogic.gdx.physics.box2d.Body body, boolean wake)
      applies the necessary force at the center of mass of the Body
      Returns:
      the force applied, calculated by calculateForceToCenter(Body)

    • getUserDataAccessor

      public static net.dermetfan.utils.Function<java.lang.Object,​PositionController> getUserDataAccessor()
      Returns:
      the userDataAccessor

    • setUserDataAccessor

      public static void setUserDataAccessor​(net.dermetfan.utils.Function<java.lang.Object,​PositionController> userDataAccessor)
      Parameters:
      userDataAccessor - The userDataAccessor to set. If null, defaultUserDataAccessor is set.