Put angle-related utilities into their own package

Also, use float instead of double for every angle computation.

1 files changed, 30 insertions, 0 deletions

diff --git a/tests/src/cgeo/geocaching/utils/AngleUtilsTest.java b/tests/src/cgeo/geocaching/utils/AngleUtilsTest.java
new file mode 100644
index 0000000..e214d84
--- /dev/null
+++ b/tests/src/cgeo/geocaching/utils/AngleUtilsTest.java
@@ -0,0 +1,30 @@
+package cgeo.geocaching.utils;
+
+import android.test.AndroidTestCase;
+
+public class AngleUtilsTest extends AndroidTestCase {
+
+    public static void testNormalize() {
+        assertEquals(0.0f, AngleUtils.normalize(0));
+        assertEquals(0.0f, AngleUtils.normalize(360));
+        assertEquals(0.0f, AngleUtils.normalize(720));
+        assertEquals(0.0f, AngleUtils.normalize(-360));
+        assertEquals(0.0f, AngleUtils.normalize(-720));
+        assertEquals(1.0f, AngleUtils.normalize(721));
+        assertEquals(359.0f, AngleUtils.normalize(-721));
+    }
+
+    public static void testDifference() {
+        assertEquals(0.0f, AngleUtils.difference(12, 12));
+        assertEquals(0.0f, AngleUtils.difference(372, 12));
+        assertEquals(0.0f, AngleUtils.difference(12, 372));
+        assertEquals(10.0f, AngleUtils.difference(10, 20));
+        assertEquals(10.0f, AngleUtils.difference(355, 5));
+        assertEquals(10.0f, AngleUtils.difference(715, -715));
+        assertEquals(-10.0f, AngleUtils.difference(20, 10));
+        assertEquals(-10.0f, AngleUtils.difference(5, 355));
+        assertEquals(-10.0f, AngleUtils.difference(-715, 715));
+        assertEquals(-180.0f, AngleUtils.difference(-90, 90));
+        assertEquals(-180.0f, AngleUtils.difference(90, -90));
+    }
+}