stuff

modules/wallpaper-engine/scripts/jsmodules/wecolor.js

@@ -0,0 +1,47 @@
+'use strict';
+
+export function rgb2hsv(r) {
+	var g, b;
+	g = r.y, b = r.z, r = r.x;
+	var max = Math.max(r, g, b), min = Math.min(r, g, b),
+		d = max - min,
+		h,
+		s = (max === 0 ? 0 : d / max),
+		v = max;
+
+	switch (max) {
+		case min: h = 0; break;
+		case r: h = (g - b) + d * (g < b ? 6: 0); h /= 6 * d; break;
+		case g: h = (b - r) + d * 2; h /= 6 * d; break;
+		case b: h = (r - g) + d * 4; h /= 6 * d; break;
+	}
+
+	return new Vec3(h, s, v);
+}
+
+export function hsv2rgb(h) {
+	var r, g, b, i, f, p, q, t, s, v;
+	s = h.y, v = h.z, h = h.x;
+	i = Math.floor(h * 6);
+	f = h * 6 - i;
+	p = v * (1 - s);
+	q = v * (1 - f * s);
+	t = v * (1 - (1 - f) * s);
+	switch (i % 6) {
+		case 0: r = v, g = t, b = p; break;
+		case 1: r = q, g = v, b = p; break;
+		case 2: r = p, g = v, b = t; break;
+		case 3: r = p, g = q, b = v; break;
+		case 4: r = t, g = p, b = v; break;
+		case 5: r = v, g = p, b = q; break;
+	}
+	return new Vec3(r, g, b);
+}
+
+export function normalizeColor(color) {
+	return new Vec3(color.x / 255, color.y / 255, color.z / 255);
+}
+
+export function expandColor(color) {
+	return new Vec3(color.x * 255, color.y * 255, color.z * 255);
+}

modules/wallpaper-engine/scripts/jsmodules/wemath.js

@@ -0,0 +1,13 @@
+'use strict';
+
+export let deg2rad = Math.PI / 180;
+export let rad2deg = 180 / Math.PI;
+
+export function smoothStep(min, max, v) {
+	let x = Math.max(0, Math.min(1, (v-min)/(max-min)));
+	return x*x*(3-2*x);
+};
+
+export function mix(a, b, v) {
+	return a+(b-a)*v;
+};

modules/wallpaper-engine/scripts/jsmodules/wevector.js

@@ -0,0 +1,15 @@
+'use strict';
+
+import * as WEMath from 'WEMath';
+
+export function angleVector2(angle) {
+	angle = angle * WEMath.deg2rad;
+	return new Vec2(
+		Math.cos(angle),
+		Math.sin(angle)
+	);
+}
+
+export function vectorAngle2(direction) {
+	return Math.atan2(direction.y, direction.x) * WEMath.rad2deg;
+}