ADD week 5

02-Easy5/E5/sources/androidx/appcompat/app/TwilightCalculator.java

@@ -0,0 +1,59 @@
+package androidx.appcompat.app;
+
+/* loaded from: classes.dex */
+class TwilightCalculator {
+    private static final float ALTIDUTE_CORRECTION_CIVIL_TWILIGHT = -0.10471976f;
+    private static final float C1 = 0.0334196f;
+    private static final float C2 = 3.49066E-4f;
+    private static final float C3 = 5.236E-6f;
+    public static final int DAY = 0;
+    private static final float DEGREES_TO_RADIANS = 0.017453292f;
+    private static final float J0 = 9.0E-4f;
+    public static final int NIGHT = 1;
+    private static final float OBLIQUITY = 0.4092797f;
+    private static final long UTC_2000 = 946728000000L;
+    private static TwilightCalculator sInstance;
+    public int state;
+    public long sunrise;
+    public long sunset;
+
+    TwilightCalculator() {
+    }
+
+    static TwilightCalculator getInstance() {
+        if (sInstance == null) {
+            sInstance = new TwilightCalculator();
+        }
+        return sInstance;
+    }
+
+    public void calculateTwilight(long j, double d, double d2) {
+        double d3 = (0.01720197f * ((j - UTC_2000) / 8.64E7f)) + 6.24006f;
+        double sin = (Math.sin(d3) * 0.03341960161924362d) + d3 + (Math.sin(2.0f * r4) * 3.4906598739326E-4d) + (Math.sin(r4 * 3.0f) * 5.236000106378924E-6d) + 1.796593063d + 3.141592653589793d;
+        double round = Math.round((r3 - J0) - r7) + J0 + ((-d2) / 360.0d) + (Math.sin(d3) * 0.0053d) + (Math.sin(2.0d * sin) * (-0.0069d));
+        double asin = Math.asin(Math.sin(sin) * Math.sin(0.4092797040939331d));
+        double d4 = 0.01745329238474369d * d;
+        double sin2 = (Math.sin(-0.10471975803375244d) - (Math.sin(d4) * Math.sin(asin))) / (Math.cos(d4) * Math.cos(asin));
+        if (sin2 >= 1.0d) {
+            this.state = 1;
+            this.sunset = -1L;
+            this.sunrise = -1L;
+        } else {
+            if (sin2 <= -1.0d) {
+                this.state = 0;
+                this.sunset = -1L;
+                this.sunrise = -1L;
+                return;
+            }
+            double acos = (float) (Math.acos(sin2) / 6.283185307179586d);
+            this.sunset = Math.round((round + acos) * 8.64E7d) + UTC_2000;
+            long round2 = Math.round((round - acos) * 8.64E7d) + UTC_2000;
+            this.sunrise = round2;
+            if (round2 >= j || this.sunset <= j) {
+                this.state = 1;
+            } else {
+                this.state = 0;
+            }
+        }
+    }
+}