🎨 Remove sky in favor of static background color

app/src/lib/utilities/index.ts

@@ -4,6 +4,5 @@ export * from './svelte-utilities'
 export * from './math-utilities'
 export * from './buffer-utilities'
 export * from './model-utilities'
-export * from './position-utilities'
 export * from './string-utilities'
 export * from './color-utilities'

app/src/lib/utilities/position-utilities.ts

@@ -1,86 +0,0 @@
-class SunCalculator {
-    calculateSunElevation(lat: number = 55, lon: number = 12) {
-        const now = new Date()
-        const JD = this.getJulianDate(now)
-        const solarDec = this.getSolarDeclination(JD)
-        const solarTime = this.getSolarTime(now, lon)
-
-        const hourAngle = (solarTime - 12) * 15
-        const elevation = Math.asin(
-            Math.sin(this.degToRad(lat)) * Math.sin(solarDec) +
-                Math.cos(this.degToRad(lat)) *
-                    Math.cos(solarDec) *
-                    Math.cos(this.degToRad(hourAngle))
-        )
-
-        return this.radToDeg(elevation)
-    }
-
-    getJulianDate(date: Date) {
-        const Y = date.getUTCFullYear()
-        const M = date.getUTCMonth() + 1
-        const D =
-            date.getUTCDate() +
-            date.getUTCHours() / 24 +
-            date.getUTCMinutes() / 1440 +
-            date.getUTCSeconds() / 86400
-        const A = Math.floor((14 - M) / 12)
-        const Y1 = Y + 4800 - A
-        const M1 = M + 12 * A - 3
-        return (
-            D +
-            Math.floor((153 * M1 + 2) / 5) +
-            365 * Y1 +
-            Math.floor(Y1 / 4) -
-            Math.floor(Y1 / 100) +
-            Math.floor(Y1 / 400) -
-            32045
-        )
-    }
-
-    getSolarDeclination(JulianDate: number) {
-        const n = JulianDate - 2451545
-        const L = (280.46 + 0.9856474 * n) % 360
-        const g = this.degToRad((357.528 + 0.9856003 * n) % 360)
-        const lambda = this.degToRad(L + 1.915 * Math.sin(g) + 0.02 * Math.sin(2 * g))
-        return Math.asin(Math.sin(lambda) * Math.sin(this.degToRad(23.44)))
-    }
-
-    getSolarTime(date: Date, lon: number) {
-        const EoT = this.getEquationOfTime(date)
-        const offset = date.getTimezoneOffset() / 60
-        const standardMeridian = Math.round(lon / 15) * 15
-        const solarTime =
-            date.getUTCHours() +
-            (date.getUTCMinutes() + (4 * (standardMeridian - lon) + EoT)) / 60 -
-            offset
-        return (solarTime + 24) % 24
-    }
-
-    getEquationOfTime(date: Date) {
-        const JD = this.getJulianDate(date)
-        const n = JD - 2451545
-        const g = this.degToRad((357.528 + 0.9856003 * n) % 360)
-        const q = this.degToRad((280.46 + 0.9856474 * n) % 360)
-        return (
-            4 *
-            this.radToDeg(
-                0.000075 +
-                    0.001868 * Math.cos(q) -
-                    0.032077 * Math.sin(g) -
-                    0.014615 * Math.cos(2 * q) -
-                    0.040849 * Math.sin(2 * g)
-            )
-        )
-    }
-
-    degToRad(deg: number) {
-        return deg * (Math.PI / 180)
-    }
-
-    radToDeg(rad: number) {
-        return rad * (180 / Math.PI)
-    }
-}
-
-export const sunCalculator = new SunCalculator()