ch.hevs.gdx2d.components.physics.utils

Class PhysicsConstants

java.lang.Object

ch.hevs.gdx2d.components.physics.utils.PhysicsConstants

public class PhysicsConstants
extends Object

Declares useful physics simulation constants and conversion functions for the Box2D engine.

Version:

1.1

Author:

Pierre-André Mudry (mui)

Field Summary

Fields

Modifier and Type	Field and Description
static float	DEG_TO_RAD Multiply this ratio to convert degrees to radians.
static float	GRAVITY_VALUE Default gravity value.
static float	M2P
static float	METERS_TO_PIXELS Multiply this ratio to convert meters to pixels.
static float	P2M
static float	PIXEL_TO_METERS Multiply this ratio to convert pixels to meters.
static int	POSITION_IT
static float	RAD_TO_DEG Multiply this ratio to convert radians to degrees.
static int	SPEEDUP
static float	STEP_SIZE Default simulation step (60 FPS).
static int	VELOCITY_IT

Constructor Summary

Constructors

Constructor and Description
PhysicsConstants()

Method Summary

Modifier and Type	Method and Description
static Vector2	coordMetersToPixels(Vector2 i) Convert a Vector2 with meter coordinates to pixels coordinates.
static Vector2	coordPixelsToMeters(Vector2 i) Convert a Vector2 with pixels coordinates to meter coordinates (using the METERS_TO_PIXELS factor) to use it in Box2D.

Methods inherited from class java.lang.Object

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

Field Detail

STEP_SIZE

public static final float STEP_SIZE

Default simulation step (60 FPS).

See Also:

Constant Field Values

GRAVITY_VALUE

public static final float GRAVITY_VALUE

Default gravity value.

See Also:

Constant Field Values

METERS_TO_PIXELS

public static float METERS_TO_PIXELS

Multiply this ratio to convert meters to pixels.

See Also:

coordMetersToPixels(Vector2)

M2P

public static float M2P

See Also:

coordMetersToPixels(Vector2), METERS_TO_PIXELS

PIXEL_TO_METERS

public static float PIXEL_TO_METERS

Multiply this ratio to convert pixels to meters.

See Also:

coordPixelsToMeters(Vector2)

P2M

public static float P2M

See Also:

coordPixelsToMeters(Vector2), PIXEL_TO_METERS

VELOCITY_IT

public static final int VELOCITY_IT

See Also:

Constant Field Values

POSITION_IT

public static final int POSITION_IT

See Also:

Constant Field Values

SPEEDUP

public static final int SPEEDUP

See Also:

Constant Field Values

RAD_TO_DEG

public static final float RAD_TO_DEG

Multiply this ratio to convert radians to degrees.

See Also:

Constant Field Values

DEG_TO_RAD

public static final float DEG_TO_RAD

Multiply this ratio to convert degrees to radians.

See Also:

Constant Field Values

Constructor Detail

PhysicsConstants

public PhysicsConstants()

Method Detail

coordPixelsToMeters

public static Vector2 coordPixelsToMeters(Vector2 i)

Convert a Vector2 with pixels coordinates to meter coordinates (using the METERS_TO_PIXELS factor) to use it in Box2D.

Parameters:

i - the input vector to convert. Will not be modified.

Returns:

the new converted vector

See Also:

PIXEL_TO_METERS

coordMetersToPixels

public static Vector2 coordMetersToPixels(Vector2 i)

Convert a Vector2 with meter coordinates to pixels coordinates.

Parameters:

i - the input vector to convert. Will not be modified.

Returns:

the new converted vector

See Also:

METERS_TO_PIXELS