Package playn.core

Class Color

java.lang.Object
playn.core.Color
public class Color extends Object
Utility methods for working with packed-integer colors.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Color()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static final int
    alpha(int color)
    Extracts the alpha, in range [0, 255], from the given packed color.
    static int
    argb(int a, int r, int g, int b)
    Creates a packed integer color from four ARGB values in the range [0, 255].
    static final int
    blue(int color)
    Extracts the blue component, in range [0, 255], from the given packed color.
    static float
    decodeLower(float encoded)
    Decodes and returns the lower color value in a two color value encoded by encode(float, float).
    static float
    decodeUpper(float encoded)
    Decodes and returns the upper color value in a two color value encoded by encode(float, float).
    static float
    encode(float upper, float lower)
    Encodes two [0..1] color values into the format used by the standard shader program.
    static final int
    green(int color)
    Extracts the green component, in range [0, 255], from the given packed color.
    static final int
    red(int color)
    Extracts the red component, in range [0, 255], from the given packed color.
    static int
    rgb(int r, int g, int b)
    Creates a packed integer color from three RGB values in the range [0, 255].
    static int
    withAlpha(int color, int alpha)
    Returns a new color that's a copy of the given color, but with the new alpha value, in range [0, 255].

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Color

      public Color()

  • Method Details

    • argb

      public static int argb(int a, int r, int g, int b)
      Creates a packed integer color from four ARGB values in the range [0, 255].

    • rgb

      public static int rgb(int r, int g, int b)
      Creates a packed integer color from three RGB values in the range [0, 255].

    • alpha

      public static final int alpha(int color)
      Extracts the alpha, in range [0, 255], from the given packed color.

    • red

      public static final int red(int color)
      Extracts the red component, in range [0, 255], from the given packed color.

    • green

      public static final int green(int color)
      Extracts the green component, in range [0, 255], from the given packed color.

    • blue

      public static final int blue(int color)
      Extracts the blue component, in range [0, 255], from the given packed color.

    • withAlpha

      public static int withAlpha(int color, int alpha)
      Returns a new color that's a copy of the given color, but with the new alpha value, in range [0, 255].

    • encode

      public static float encode(float upper, float lower)
      Encodes two [0..1] color values into the format used by the standard shader program. The standard shader program delivers tinting information as two floats per vertex (AR and GB).

    • decodeUpper

      public static float decodeUpper(float encoded)
      Decodes and returns the upper color value in a two color value encoded by encode(float, float).

    • decodeLower

      public static float decodeLower(float encoded)
      Decodes and returns the lower color value in a two color value encoded by encode(float, float).