Package gaiasky.util

Class DecalUtils

java.lang.Object

gaiasky.util.DecalUtils

public class DecalUtils
extends java.lang.Object

This class provides utils to use Sprites and Fonts as if they were Decals, this is, flat textures in the 3D space.

Constructor Summary

Constructors

Constructor	Description
DecalUtils()

Method Summary

Modifier and Type	Method	Description
static void	drawFont2D(BitmapFont font, ExtSpriteBatch batch, RenderingContext rc, java.lang.String text, float x, float y, float scale, float width)
static void	drawFont2D(BitmapFont font, ExtSpriteBatch batch, RenderingContext rc, java.lang.String text, float x, float y, float scale, int align)
static void	drawFont2D(BitmapFont font, ExtSpriteBatch batch, java.lang.String text, float x, float y)
static void	drawFont2D(BitmapFont font, ExtSpriteBatch batch, java.lang.String text, com.badlogic.gdx.math.Vector3 position)
static void	drawFont3D(BitmapFont font, ExtSpriteBatch batch, java.lang.String text, float x, float y, float z, double size, float rotationCenter, com.badlogic.gdx.graphics.Camera camera, boolean faceCamera, float minSizeDegrees, float maxSizeDegrees)	Draws the given text using the given font in the given 3D position using the 3D coordinate space.
static void	drawFont3D(BitmapFont font, ExtSpriteBatch batch, java.lang.String text, float x, float y, float z, float size, float rotationCenter, com.badlogic.gdx.graphics.Camera camera, boolean faceCamera)
static void	drawFont3D(BitmapFont font, ExtSpriteBatch batch, java.lang.String text, com.badlogic.gdx.math.Vector3 position, float scale, com.badlogic.gdx.graphics.Camera camera, boolean faceCamera)	Draws the given text using the given font in the given 3D position using the 3D coordinate space.
static void	drawFont3D(BitmapFont font, ExtSpriteBatch batch, java.lang.String text, com.badlogic.gdx.math.Vector3 position, com.badlogic.gdx.graphics.Camera camera, boolean faceCamera)	Draws the given text using the given font in the given 3D position using the 3D coordinate space.
static com.badlogic.gdx.math.Quaternion	getBillboardRotation(com.badlogic.gdx.graphics.Camera camera)	Gets the billboard rotation using the parameters of the given camera
static com.badlogic.gdx.math.Quaternion	getBillboardRotation(com.badlogic.gdx.math.Vector3 direction, com.badlogic.gdx.math.Vector3 up)	Returns a Quaternion representing the billboard rotation to be applied to a decal that is always to face the given direction and up vector
static void	setBillboardRotation(com.badlogic.gdx.math.Quaternion rotation, com.badlogic.gdx.math.Vector3 direction, com.badlogic.gdx.math.Vector3 up)	Sets the rotation of this decal based on the (normalized) direction and up vector.
static void	setBillboardRotation(com.badlogic.gdx.math.Quaternion rotation, Vector3d direction, Vector3d up)	Sets the rotation of this decal based on the (normalized) direction and up vector.

Methods inherited from class java.lang.Object

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

Constructor Details

DecalUtils

public DecalUtils()

Method Details

drawFont3D

public static void drawFont3D(BitmapFont font,
ExtSpriteBatch batch,
java.lang.String text,
com.badlogic.gdx.math.Vector3 position,
com.badlogic.gdx.graphics.Camera camera,
boolean faceCamera)

Draws the given text using the given font in the given 3D position using the 3D coordinate space. If faceCamera is true, the text is rendered always facing the camera. It assumes that ExtSpriteBatch.begin() has been called. This enables 3D techniques such as z-buffering to be applied to the text textures.

Parameters:

font - The font.

batch - The sprite batch to use.

text - The text to write.

position - The 3D position.

camera - The camera.

drawFont3D

public static void drawFont3D(BitmapFont font,
ExtSpriteBatch batch,
java.lang.String text,
float x,
float y,
float z,
float size,
float rotationCenter,
com.badlogic.gdx.graphics.Camera camera,
boolean faceCamera)

drawFont3D

public static void drawFont3D(BitmapFont font,
ExtSpriteBatch batch,
java.lang.String text,
float x,
float y,
float z,
double size,
float rotationCenter,
com.badlogic.gdx.graphics.Camera camera,
boolean faceCamera,
float minSizeDegrees,
float maxSizeDegrees)

Draws the given text using the given font in the given 3D position using the 3D coordinate space. If faceCamera is true, the text is rendered always facing the camera. It assumes that ExtSpriteBatch.begin() has been called. This enables 3D techniques such as z-buffering to be applied to the text textures.

Parameters:

font - The font.

batch - The sprite batch to use.

text - The text to write.

x - The x coordinate.

y - The y coordinate.

z - The z coordinate.

size - The scale of the font.

rotationCenter - Angles to rotate around center.

camera - The camera.

faceCamera - Whether to apply bill-boarding.

minSizeDegrees - Minimum visual size of the text in degrees. Zero or negative to disable.

maxSizeDegrees - Maximum visual size of the text in degrees. Zero or negative to disable.

drawFont3D

public static void drawFont3D(BitmapFont font,
ExtSpriteBatch batch,
java.lang.String text,
com.badlogic.gdx.math.Vector3 position,
float scale,
com.badlogic.gdx.graphics.Camera camera,
boolean faceCamera)

Draws the given text using the given font in the given 3D position using the 3D coordinate space. If faceCamera is true, the text is rendered always facing the camera. It assumes that ExtSpriteBatch.begin() has been called. This enables 3D techniques such as z-buffering to be applied to the text textures.

Parameters:

font - The font.

batch - The sprite batch to use.

text - The text to write.

position - The 3D position.

camera - The camera.

scale - The scale of the font.

drawFont2D

public static void drawFont2D(BitmapFont font,
ExtSpriteBatch batch,
java.lang.String text,
com.badlogic.gdx.math.Vector3 position)

drawFont2D

public static void drawFont2D(BitmapFont font,
ExtSpriteBatch batch,
java.lang.String text,
float x,
float y)

drawFont2D

public static void drawFont2D(BitmapFont font,
ExtSpriteBatch batch,
RenderingContext rc,
java.lang.String text,
float x,
float y,
float scale,
float width)

drawFont2D

public static void drawFont2D(BitmapFont font,
ExtSpriteBatch batch,
RenderingContext rc,
java.lang.String text,
float x,
float y,
float scale,
int align)

getBillboardRotation

public static com.badlogic.gdx.math.Quaternion getBillboardRotation(com.badlogic.gdx.graphics.Camera camera)

Gets the billboard rotation using the parameters of the given camera

Parameters:

camera - The camera

Returns:

The quaternion with the rotation

getBillboardRotation

public static com.badlogic.gdx.math.Quaternion getBillboardRotation(com.badlogic.gdx.math.Vector3 direction,
com.badlogic.gdx.math.Vector3 up)

Returns a Quaternion representing the billboard rotation to be applied to a decal that is always to face the given direction and up vector

Parameters:

direction - The direction vector

up - The up vector

Returns:

The quaternion with the rotation

setBillboardRotation

public static void setBillboardRotation(com.badlogic.gdx.math.Quaternion rotation,
com.badlogic.gdx.math.Vector3 direction,
com.badlogic.gdx.math.Vector3 up)

Sets the rotation of this decal based on the (normalized) direction and up vector.

Parameters:

rotation - out-parameter, quaternion where the result is set

direction - the direction vector

up - the up vector

setBillboardRotation

public static void setBillboardRotation(com.badlogic.gdx.math.Quaternion rotation,
Vector3d direction,
Vector3d up)

Sets the rotation of this decal based on the (normalized) direction and up vector.

Parameters:

direction - the direction vector

up - the up vector