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Fixed Vector.cross and optimized the Vector tests slightly.

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This commit is contained in:
TomyLobo 2012-01-08 03:21:35 +01:00
parent e810113ea0
commit e1428602af
2 changed files with 11 additions and 11 deletions
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6
src/main/java/com/sk89q/worldedit/Vector.java
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@ -503,9 +503,9 @@ public class Vector {
*/
public Vector cross(Vector other) {
return new Vector(
y * other.z + z * other.y,
z * other.x + x * other.z,
x * other.y + y * other.x
y * other.z - z * other.y,
z * other.x - x * other.z,
x * other.y - y * other.x
);
}

16
src/test/java/com/sk89q/worldedit/VectorTest.java
View File

@ -100,16 +100,16 @@ public class VectorTest {
final Vector b = new Vector(bx,by,bz);
assertTrue(a.isCollinearWith(b));
assertTrue(b.isCollinearWith(a));
assertTrue(a.multiply(-1).isCollinearWith(b));
assertTrue(a.isCollinearWith(b.multiply(-1)));
assertTrue(a.multiply(-1.0).isCollinearWith(b));
assertTrue(a.isCollinearWith(b.multiply(-1.0)));
}
private void assertNotCollinear(double ax, double ay, double az, double bx, double by, double bz) {
final Vector a = new Vector(ax,ay,az);
final Vector b = new Vector(bx,by,bz);
assertFalse(a.isCollinearWith(b));
assertFalse(b.isCollinearWith(a));
assertFalse(a.multiply(-1).isCollinearWith(b));
assertFalse(a.isCollinearWith(b.multiply(-1)));
assertFalse(a.multiply(-1.0).isCollinearWith(b));
assertFalse(a.isCollinearWith(b.multiply(-1.0)));
}
private void assertCollinear(double ax, double az, double bx, double bz) {
@ -117,15 +117,15 @@ public class VectorTest {
final Vector2D b = new Vector2D(bx,bz);
assertTrue(a.isCollinearWith(b));
assertTrue(b.isCollinearWith(a));
assertTrue(a.multiply(-1).isCollinearWith(b));
assertTrue(a.isCollinearWith(b.multiply(-1)));
assertTrue(a.multiply(-1.0).isCollinearWith(b));
assertTrue(a.isCollinearWith(b.multiply(-1.0)));
}
private void assertNotCollinear(double ax, double az, double bx, double bz) {
final Vector2D a = new Vector2D(ax,az);
final Vector2D b = new Vector2D(bx,bz);
assertFalse(a.isCollinearWith(b));
assertFalse(b.isCollinearWith(a));
assertFalse(a.multiply(-1).isCollinearWith(b));
assertFalse(a.isCollinearWith(b.multiply(-1)));
assertFalse(a.multiply(-1.0).isCollinearWith(b));
assertFalse(a.isCollinearWith(b.multiply(-1.0)));
}
}