66 lines
1.8 KiB
TypeScript
66 lines
1.8 KiB
TypeScript
export class ColorUtils
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{
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public static makeColorHex(color: string): string
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{
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return ('#' + color);
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}
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public static makeColorNumberHex(color: number): string
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{
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let val = color.toString(16);
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return ( '#' + val.padStart(6, '0'));
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}
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public static convertFromHex(color: string): number
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{
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return parseInt(color.replace('#', ''), 16);
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}
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public static uintHexColor(color: number): string
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{
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const realColor = color >>>0;
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return ColorUtils.makeColorHex(realColor.toString(16).substring(2));
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}
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/**
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* Converts an integer format into an array of 8-bit values
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* @param {number} value value in integer format
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* @returns {Array} 8-bit values
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*/
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public static int_to_8BitVals(value: number): [number, number, number, number]
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{
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const val1 = ((value >> 24) & 0xFF)
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const val2 = ((value >> 16) & 0xFF);
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const val3 = ((value >> 8) & 0xFF);
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const val4 = (value & 0xFF);
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return [ val1, val2, val3, val4 ];
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}
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/**
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* Combines 4 8-bit values into a 32-bit integer. Values are combined in
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* in the order of the parameters
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* @param val1
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* @param val2
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* @param val3
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* @param val4
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* @returns 32-bit integer of combined values
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*/
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public static eight_bitVals_to_int(val1: number, val2: number, val3: number, val4: number): number
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{
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return (((val1) << 24) + ((val2) << 16) + ((val3) << 8) + (val4| 0));
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}
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public static int2rgb(color: number): string
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{
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color >>>= 0;
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const b = color & 0xFF;
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const g = (color & 0xFF00) >>> 8;
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const r = (color & 0xFF0000) >>> 16;
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const a = ((color & 0xFF000000) >>> 24) / 255;
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return 'rgba(' + [ r, g, b, 1 ].join(',') + ')';
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}
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}
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