48 lines
1.4 KiB
JavaScript
48 lines
1.4 KiB
JavaScript
export class EliteMatrix {
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red;
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green;
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blue;
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constructor(matrixRed, matrixGreen, matrixBlue) {
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this.red = matrixRed;
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this.green = matrixGreen;
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this.blue = matrixBlue;
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}
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/* ------------------------------------------------------------------------- filterColor ---- */
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filterColor(color) {
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let rgb;
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// Convert hex to RGB.
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if (typeof color === 'string') {
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const red = parseInt(color.slice(1, 3), 16) / 255;
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const green = parseInt(color.slice(3, 5), 16) / 255;
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const blue = parseInt(color.slice(5, 7), 16) / 255;
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rgb = [red, green, blue];
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}
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else {
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rgb = color;
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}
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// Apply matrix filter.
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let newColor = [];
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let i = 0;
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while (i < 3) {
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newColor.push(this.red[i] * rgb[0] +
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this.green[i] * rgb[1] +
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this.blue[i] * rgb[2]);
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i++;
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}
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newColor.forEach((n) => {
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Math.max(Math.min(n, 1), 0);
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});
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// Return the same data type as user put in.
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if (Array.isArray(color)) {
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return newColor;
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}
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else {
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let hex = '#';
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newColor.forEach((n) => {
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n *= 255;
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hex += n.toString(16);
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});
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return hex;
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}
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}
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}
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