## Libraries.Game.Physics.VelocityConstraintPoint Documentation

This class is used internally by CollisionSolver2D.

Inherits from: Libraries.Language.Object

## Summary

### Actions Summary Table

ActionsDescription
Compare(Libraries.Language.Object object)This action compares two object hash codes and returns an integer.
Equals(Libraries.Language.Object object)This action determines if two objects are equal based on their hash code values.
GetHashCode()This action gets the hash code for an object.
GetNormalImpulse()This action returns the normal impulse.
GetNormalMass()This action returns the effective mass of the object in the normal direction.
GetTangentImpulse()This action returns the tangential impulse.
GetTangentMass()This action returns the effective mass of the object in the tangent direction.
GetVelocityBias()This action returns the velocity to subtract from the actual velocity of the object to improve calculations.
SetNormalImpulse(number impulse)This action sets the normal impulse.
SetNormalMass(number mass)This action sets the effective mass of the object in the normal direction.
SetTangentImpulse(number impulse)This action sets the tangential impulse.
SetTangentMass(number mass)This action sets the effective mass of the object in the tangent direction.
SetVelocityBias(number bias)This action sets the velocity to subtract from the actual velocity of the object to improve calculations.

## Actions Documentation

### Compare(Libraries.Language.Object object)

This action compares two object hash codes and returns an integer. The result is larger if this hash code is larger than the object passed as a parameter, smaller, or equal. In this case, -1 means smaller, 0 means equal, and 1 means larger. This action was changed in Quorum 7 to return an integer, instead of a CompareResult object, because the previous implementation was causing efficiency issues.

Example Code

``````Object o
Object t
integer result = o:Compare(t) //1 (larger), 0 (equal), or -1 (smaller)``````

#### Return

integer: The Compare result, Smaller, Equal, or Larger.

### Equals(Libraries.Language.Object object)

This action determines if two objects are equal based on their hash code values.

Example Code

``````use Libraries.Language.Object
use Libraries.Language.Types.Text
Object o
Text t
boolean result = o:Equals(t)``````

#### Return

boolean: True if the hash codes are equal and false if they are not equal.

### GetHashCode()

This action gets the hash code for an object.

Example Code

``````Object o
integer hash = o:GetHashCode()``````

#### Return

integer: The integer hash code of the object.

### GetNormalImpulse()

This action returns the normal impulse.

#### Return

number: the magnitude of the impulse that should be applied to separate the two objects in collision.

### GetNormalMass()

This action returns the effective mass of the object in the normal direction.

#### Return

number: the effective mass of the object in the normal direction.

This action returns the effective radius of object A.

#### Return

Libraries.Compute.Vector2: the effective radius of object A.

This action returns the effective radius of object B.

#### Return

Libraries.Compute.Vector2: the effective radius of object B.

### GetTangentImpulse()

This action returns the tangential impulse.

#### Return

number: the magnitude of impulse that should be applied to simulate the friction between the two objects during collision.

### GetTangentMass()

This action returns the effective mass of the object in the tangent direction.

#### Return

number: the effective mass of the object in the tangent direction.

### GetVelocityBias()

This action returns the velocity to subtract from the actual velocity of the object to improve calculations.

#### Return

number: velocity bias.

### SetNormalImpulse(number impulse)

This action sets the normal impulse.

### SetNormalMass(number mass)

This action sets the effective mass of the object in the normal direction.

#### Parameters

• number mass: the effective mass of the object in the normal direction.

This action sets the effective radius of object A.

#### Parameters

This action sets the effective radius of object B.

### SetTangentImpulse(number impulse)

This action sets the tangential impulse.

### SetTangentMass(number mass)

This action sets the effective mass of the object in the tangent direction.

#### Parameters

• number mass: the effective mass of the object in the tangent direction.

### SetVelocityBias(number bias)

This action sets the velocity to subtract from the actual velocity of the object to improve calculations.

#### Parameters

• number bias: The velocity bias.