mirror of
https://github.com/photonstorm/phaser
synced 2024-11-27 07:01:20 +00:00
561 lines
No EOL
19 KiB
TypeScript
561 lines
No EOL
19 KiB
TypeScript
/// <reference path="../Game.ts" />
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/// <reference path="../geom/Point.ts" />
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/// <reference path="../geom/Rectangle.ts" />
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/// <reference path="../geom/Circle.ts" />
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/**
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* Phaser - ColorUtils
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*
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* A collection of methods useful for manipulating color values.
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*/
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module Phaser {
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export class ColorUtils {
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static game: Game;
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/**
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* Given an alpha and 3 color values this will return an integer representation of it
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*
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* @param alpha {number} The Alpha value (between 0 and 255)
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* @param red {number} The Red channel value (between 0 and 255)
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* @param green {number} The Green channel value (between 0 and 255)
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* @param blue {number} The Blue channel value (between 0 and 255)
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*
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* @return A native color value integer (format: 0xAARRGGBB)
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*/
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static getColor32(alpha: number, red: number, green: number, blue: number): number {
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return alpha << 24 | red << 16 | green << 8 | blue;
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}
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/**
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* Given 3 color values this will return an integer representation of it
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*
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* @param red {number} The Red channel value (between 0 and 255)
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* @param green {number} The Green channel value (between 0 and 255)
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* @param blue {number} The Blue channel value (between 0 and 255)
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*
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* @return A native color value integer (format: 0xRRGGBB)
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*/
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static getColor(red: number, green: number, blue: number): number {
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return red << 16 | green << 8 | blue;
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}
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/**
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* Get HSV color wheel values in an array which will be 360 elements in size
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*
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* @param alpha Alpha value for each color of the color wheel, between 0 (transparent) and 255 (opaque)
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*
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* @return Array
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*/
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static public getHSVColorWheel(alpha: number = 255) {
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var colors = [];
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for (var c: number = 0; c <= 359; c++)
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{
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//colors[c] = HSVtoRGB(c, 1.0, 1.0, alpha);
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colors[c] = getWebRGB(HSVtoRGB(c, 1.0, 1.0, alpha));
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}
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return colors;
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}
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/**
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* Returns a Complementary Color Harmony for the given color.
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* <p>A complementary hue is one directly opposite the color given on the color wheel</p>
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* <p>Value returned in 0xAARRGGBB format with Alpha set to 255.</p>
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*
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* @param color The color to base the harmony on
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*
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* @return 0xAARRGGBB format color value
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*/
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static public getComplementHarmony(color: number): number {
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var hsv: any = RGBtoHSV(color);
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var opposite: number = ColorUtils.game.math.wrapValue(hsv.hue, 180, 359);
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return HSVtoRGB(opposite, 1.0, 1.0);
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}
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/**
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* Returns an Analogous Color Harmony for the given color.
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* <p>An Analogous harmony are hues adjacent to each other on the color wheel</p>
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* <p>Values returned in 0xAARRGGBB format with Alpha set to 255.</p>
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*
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* @param color The color to base the harmony on
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* @param threshold Control how adjacent the colors will be (default +- 30 degrees)
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*
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* @return Object containing 3 properties: color1 (the original color), color2 (the warmer analogous color) and color3 (the colder analogous color)
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*/
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static public getAnalogousHarmony(color: number, threshold: number = 30) {
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var hsv: any = RGBtoHSV(color);
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if (threshold > 359 || threshold < 0)
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{
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throw Error("Color Warning: Invalid threshold given to getAnalogousHarmony()");
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}
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var warmer: number = ColorUtils.game.math.wrapValue(hsv.hue, 359 - threshold, 359);
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var colder: number = ColorUtils.game.math.wrapValue(hsv.hue, threshold, 359);
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return { color1: color, color2: HSVtoRGB(warmer, 1.0, 1.0), color3: HSVtoRGB(colder, 1.0, 1.0), hue1: hsv.hue, hue2: warmer, hue3: colder }
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}
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/**
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* Returns an Split Complement Color Harmony for the given color.
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* <p>A Split Complement harmony are the two hues on either side of the color's Complement</p>
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* <p>Values returned in 0xAARRGGBB format with Alpha set to 255.</p>
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*
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* @param color The color to base the harmony on
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* @param threshold Control how adjacent the colors will be to the Complement (default +- 30 degrees)
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*
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* @return Object containing 3 properties: color1 (the original color), color2 (the warmer analogous color) and color3 (the colder analogous color)
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*/
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static public getSplitComplementHarmony(color: number, threshold: number = 30): any {
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var hsv: any = RGBtoHSV(color);
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if (threshold >= 359 || threshold <= 0)
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{
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throw Error("ColorUtils Warning: Invalid threshold given to getSplitComplementHarmony()");
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}
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var opposite: number = ColorUtils.game.math.wrapValue(hsv.hue, 180, 359);
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var warmer: number = ColorUtils.game.math.wrapValue(hsv.hue, opposite - threshold, 359);
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var colder: number = ColorUtils.game.math.wrapValue(hsv.hue, opposite + threshold, 359);
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return { color1: color, color2: HSVtoRGB(warmer, hsv.saturation, hsv.value), color3: HSVtoRGB(colder, hsv.saturation, hsv.value), hue1: hsv.hue, hue2: warmer, hue3: colder }
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}
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/**
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* Returns a Triadic Color Harmony for the given color.
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* <p>A Triadic harmony are 3 hues equidistant from each other on the color wheel</p>
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* <p>Values returned in 0xAARRGGBB format with Alpha set to 255.</p>
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*
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* @param color The color to base the harmony on
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*
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* @return Object containing 3 properties: color1 (the original color), color2 and color3 (the equidistant colors)
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*/
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static public getTriadicHarmony(color: number): any {
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var hsv: any = RGBtoHSV(color);
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var triadic1: number = ColorUtils.game.math.wrapValue(hsv.hue, 120, 359);
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var triadic2: number = ColorUtils.game.math.wrapValue(triadic1, 120, 359);
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return { color1: color, color2: HSVtoRGB(triadic1, 1.0, 1.0), color3: HSVtoRGB(triadic2, 1.0, 1.0) }
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}
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/**
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* Returns a string containing handy information about the given color including string hex value,
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* RGB format information and HSL information. Each section starts on a newline, 3 lines in total.
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*
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* @param color A color value in the format 0xAARRGGBB
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*
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* @return string containing the 3 lines of information
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*/
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static public getColorInfo(color: number): string {
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var argb: any = getRGB(color);
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var hsl: any = RGBtoHSV(color);
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// Hex format
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var result: string = RGBtoHexstring(color) + "\n";
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// RGB format
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result = result.concat("Alpha: " + argb.alpha + " Red: " + argb.red + " Green: " + argb.green + " Blue: " + argb.blue) + "\n";
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// HSL info
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result = result.concat("Hue: " + hsl.hue + " Saturation: " + hsl.saturation + " Lightnes: " + hsl.lightness);
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return result;
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}
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/**
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* Return a string representation of the color in the format 0xAARRGGBB
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*
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* @param color The color to get the string representation for
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*
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* @return A string of length 10 characters in the format 0xAARRGGBB
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*/
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static public RGBtoHexstring(color: number): string {
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var argb: any = getRGB(color);
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return "0x" + colorToHexstring(argb.alpha) + colorToHexstring(argb.red) + colorToHexstring(argb.green) + colorToHexstring(argb.blue);
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}
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/**
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* Return a string representation of the color in the format #RRGGBB
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*
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* @param color The color to get the string representation for
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*
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* @return A string of length 10 characters in the format 0xAARRGGBB
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*/
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static public RGBtoWebstring(color: number): string {
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var argb: any = getRGB(color);
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return "#" + colorToHexstring(argb.red) + colorToHexstring(argb.green) + colorToHexstring(argb.blue);
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}
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/**
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* Return a string containing a hex representation of the given color
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*
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* @param color The color channel to get the hex value for, must be a value between 0 and 255)
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*
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* @return A string of length 2 characters, i.e. 255 = FF, 0 = 00
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*/
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static public colorToHexstring(color: number): string {
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var digits: string = "0123456789ABCDEF";
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var lsd: number = color % 16;
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var msd: number = (color - lsd) / 16;
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var hexified: string = digits.charAt(msd) + digits.charAt(lsd);
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return hexified;
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}
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/**
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* Convert a HSV (hue, saturation, lightness) color space value to an RGB color
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*
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* @param h Hue degree, between 0 and 359
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* @param s Saturation, between 0.0 (grey) and 1.0
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* @param v Value, between 0.0 (black) and 1.0
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* @param alpha Alpha value to set per color (between 0 and 255)
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*
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* @return 32-bit ARGB color value (0xAARRGGBB)
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*/
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static HSVtoRGB(h: number, s: number, v: number, alpha: number = 255): number {
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var result: number;
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if (s == 0.0)
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{
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result = ColorUtils.getColor32(alpha, v * 255, v * 255, v * 255);
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}
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else
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{
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h = h / 60.0;
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var f: number = h - Math.floor(h);
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var p: number = v * (1.0 - s);
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var q: number = v * (1.0 - s * f);
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var t: number = v * (1.0 - s * (1.0 - f));
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switch (Math.floor(h))
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{
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case 0:
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result = ColorUtils.getColor32(alpha, v * 255, t * 255, p * 255);
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break;
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case 1:
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result = ColorUtils.getColor32(alpha, q * 255, v * 255, p * 255);
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break;
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case 2:
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result = ColorUtils.getColor32(alpha, p * 255, v * 255, t * 255);
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break;
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case 3:
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result = ColorUtils.getColor32(alpha, p * 255, q * 255, v * 255);
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break;
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case 4:
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result = ColorUtils.getColor32(alpha, t * 255, p * 255, v * 255);
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break;
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case 5:
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result = ColorUtils.getColor32(alpha, v * 255, p * 255, q * 255);
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break;
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default:
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throw new Error("ColorUtils.HSVtoRGB : Unknown color");
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}
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}
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return result;
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}
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/**
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* Convert an RGB color value to an object containing the HSV color space values: Hue, Saturation and Lightness
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*
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* @param color In format 0xRRGGBB
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*
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* @return Object with the properties hue (from 0 to 360), saturation (from 0 to 1.0) and lightness (from 0 to 1.0, also available under .value)
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*/
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static public RGBtoHSV(color: number): any {
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var rgb: any = ColorUtils.getRGB(color);
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var red: number = rgb.red / 255;
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var green: number = rgb.green / 255;
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var blue: number = rgb.blue / 255;
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var min: number = Math.min(red, green, blue);
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var max: number = Math.max(red, green, blue);
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var delta: number = max - min;
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var lightness: number = (max + min) / 2;
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var hue: number;
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var saturation: number;
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// Grey color, no chroma
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if (delta == 0)
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{
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hue = 0;
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saturation = 0;
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}
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else
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{
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if (lightness < 0.5)
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{
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saturation = delta / (max + min);
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}
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else
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{
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saturation = delta / (2 - max - min);
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}
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var delta_r: number = (((max - red) / 6) + (delta / 2)) / delta;
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var delta_g: number = (((max - green) / 6) + (delta / 2)) / delta;
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var delta_b: number = (((max - blue) / 6) + (delta / 2)) / delta;
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if (red == max)
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{
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hue = delta_b - delta_g;
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}
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else if (green == max)
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{
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hue = (1 / 3) + delta_r - delta_b;
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}
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else if (blue == max)
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{
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hue = (2 / 3) + delta_g - delta_r;
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}
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if (hue < 0)
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{
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hue += 1;
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}
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if (hue > 1)
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{
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hue -= 1;
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}
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}
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// Keep the value with 0 to 359
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hue *= 360;
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hue = Math.round(hue);
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return { hue: hue, saturation: saturation, lightness: lightness, value: lightness };
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}
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/**
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*
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* @method interpolateColor
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* @param {Number} color1
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* @param {Number} color2
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* @param {Number} steps
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* @param {Number} currentStep
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* @param {Number} alpha
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* @return {Number}
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* @static
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*/
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static public interpolateColor(color1: number, color2: number, steps: number, currentStep: number, alpha: number = 255): number {
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var src1: any = ColorUtils.getRGB(color1);
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var src2: any = ColorUtils.getRGB(color2);
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var r: number = (((src2.red - src1.red) * currentStep) / steps) + src1.red;
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var g: number = (((src2.green - src1.green) * currentStep) / steps) + src1.green;
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var b: number = (((src2.blue - src1.blue) * currentStep) / steps) + src1.blue;
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return ColorUtils.getColor32(alpha, r, g, b);
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}
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/**
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*
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* @method interpolateColorWithRGB
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* @param {Number} color
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* @param {Number} r2
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* @param {Number} g2
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* @param {Number} b2
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* @param {Number} steps
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* @param {Number} currentStep
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* @return {Number}
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* @static
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*/
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static public interpolateColorWithRGB(color: number, r2: number, g2: number, b2: number, steps: number, currentStep: number): number {
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var src: any = ColorUtils.getRGB(color);
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var r: number = (((r2 - src.red) * currentStep) / steps) + src.red;
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var g: number = (((g2 - src.green) * currentStep) / steps) + src.green;
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var b: number = (((b2 - src.blue) * currentStep) / steps) + src.blue;
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return ColorUtils.getColor(r, g, b);
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}
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/**
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*
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* @method interpolateRGB
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* @param {Number} r1
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* @param {Number} g1
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* @param {Number} b1
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* @param {Number} r2
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* @param {Number} g2
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* @param {Number} b2
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* @param {Number} steps
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* @param {Number} currentStep
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* @return {Number}
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* @static
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*/
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static public interpolateRGB(r1: number, g1: number, b1: number, r2: number, g2: number, b2: number, steps: number, currentStep: number): number {
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var r: number = (((r2 - r1) * currentStep) / steps) + r1;
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var g: number = (((g2 - g1) * currentStep) / steps) + g1;
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var b: number = (((b2 - b1) * currentStep) / steps) + b1;
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return ColorUtils.getColor(r, g, b);
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}
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/**
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* Returns a random color value between black and white
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* <p>Set the min value to start each channel from the given offset.</p>
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* <p>Set the max value to restrict the maximum color used per channel</p>
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*
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* @param min The lowest value to use for the color
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* @param max The highest value to use for the color
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* @param alpha The alpha value of the returning color (default 255 = fully opaque)
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*
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* @return 32-bit color value with alpha
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*/
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static public getRandomColor(min: number = 0, max: number = 255, alpha: number = 255): number {
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// Sanity checks
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if (max > 255)
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{
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return ColorUtils.getColor(255, 255, 255);
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}
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if (min > max)
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{
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return ColorUtils.getColor(255, 255, 255);
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}
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var red: number = min + Math.round(Math.random() * (max - min));
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var green: number = min + Math.round(Math.random() * (max - min));
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var blue: number = min + Math.round(Math.random() * (max - min));
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return ColorUtils.getColor32(alpha, red, green, blue);
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}
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/**
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* Return the component parts of a color as an Object with the properties alpha, red, green, blue
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*
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* <p>Alpha will only be set if it exist in the given color (0xAARRGGBB)</p>
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*
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* @param color in RGB (0xRRGGBB) or ARGB format (0xAARRGGBB)
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*
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* @return Object with properties: alpha, red, green, blue
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*/
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static public getRGB(color: number): any {
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return { alpha: color >>> 24, red: color >> 16 & 0xFF, green: color >> 8 & 0xFF, blue: color & 0xFF };
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}
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/**
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*
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* @method getWebRGB
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* @param {Number} color
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* @return {Any}
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*/
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static public getWebRGB(color: number): any {
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var alpha: number = (color >>> 24) / 255;
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var red: number = color >> 16 & 0xFF;
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var green: number = color >> 8 & 0xFF;
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var blue: number = color & 0xFF;
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return 'rgba(' + red.toString() + ',' + green.toString() + ',' + blue.toString() + ',' + alpha.toString() + ')';
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}
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/**
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* Given a native color value (in the format 0xAARRGGBB) this will return the Alpha component, as a value between 0 and 255
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*
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* @param color In the format 0xAARRGGBB
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*
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* @return The Alpha component of the color, will be between 0 and 255 (0 being no Alpha, 255 full Alpha)
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*/
|
|
static public getAlpha(color: number): number {
|
|
return color >>> 24;
|
|
}
|
|
|
|
/**
|
|
* Given a native color value (in the format 0xAARRGGBB) this will return the Alpha component as a value between 0 and 1
|
|
*
|
|
* @param color In the format 0xAARRGGBB
|
|
*
|
|
* @return The Alpha component of the color, will be between 0 and 1 (0 being no Alpha (opaque), 1 full Alpha (transparent))
|
|
*/
|
|
static public getAlphaFloat(color: number): number {
|
|
return (color >>> 24) / 255;
|
|
}
|
|
|
|
/**
|
|
* Given a native color value (in the format 0xAARRGGBB) this will return the Red component, as a value between 0 and 255
|
|
*
|
|
* @param color In the format 0xAARRGGBB
|
|
*
|
|
* @return The Red component of the color, will be between 0 and 255 (0 being no color, 255 full Red)
|
|
*/
|
|
static public getRed(color: number): number {
|
|
return color >> 16 & 0xFF;
|
|
}
|
|
|
|
/**
|
|
* Given a native color value (in the format 0xAARRGGBB) this will return the Green component, as a value between 0 and 255
|
|
*
|
|
* @param color In the format 0xAARRGGBB
|
|
*
|
|
* @return The Green component of the color, will be between 0 and 255 (0 being no color, 255 full Green)
|
|
*/
|
|
static public getGreen(color: number): number {
|
|
return color >> 8 & 0xFF;
|
|
}
|
|
|
|
/**
|
|
* Given a native color value (in the format 0xAARRGGBB) this will return the Blue component, as a value between 0 and 255
|
|
*
|
|
* @param color In the format 0xAARRGGBB
|
|
*
|
|
* @return The Blue component of the color, will be between 0 and 255 (0 being no color, 255 full Blue)
|
|
*/
|
|
static public getBlue(color: number): number {
|
|
return color & 0xFF;
|
|
}
|
|
|
|
}
|
|
|
|
} |