@Test
public void testCreateLineFromPoints() {
BitMask bm = BitMaskFactory.createLine(Vectors.create(-1, -1), Vectors.create(-1, 1));
bm.trim();
assertEquals(new BoundingBox(-1, -1, 1, -1), bm.getBounds());
assertEquals(0x8000000000000000l, bm.getSubmaskElement(0, 0));
assertEquals(0x8000000000000000l, bm.getSubmaskElement(1, 0));
assertEquals(0x8000000000000000l, bm.getSubmaskElement(2, 0));
}
@Test
public void testCreateThirdCircle() {
BitMask bm = BitMaskFactory.createCircle(9.999);
bm.trim();
assertEquals(new BoundingBox(0, 0, 19, 20), bm.getBounds());
assertEquals(0x0060000000000000l, bm.getSubmaskElement(0, 0));
assertEquals(0xFFFFF80000000000l, bm.getSubmaskElement(6, 0));
assertEquals(0x07FF000000000000l, bm.getSubmaskElement(19, 0));
}
@Test
public void testCreateOtherCircle() {
BitMask bm = BitMaskFactory.createCircle(10.001);
bm.trim();
assertEquals(new BoundingBox(0, 0, 20, 21), bm.getBounds());
assertEquals(0x0030000000000000l, bm.getSubmaskElement(0, 0));
assertEquals(0xFFFFF80000000000l, bm.getSubmaskElement(6, 0));
assertEquals(0x0070000000000000l, bm.getSubmaskElement(20, 0));
}
@Test
public void testCreateUnitCircle() {
BitMask bm = BitMaskFactory.createCircle(1.0);
bm.trim();
assertEquals(new BoundingBox(0, 0, 2, 2), bm.getBounds());
assertEquals(0x4000000000000000l, bm.getSubmaskElement(0, 0));
assertEquals(0xE000000000000000l, bm.getSubmaskElement(1, 0));
assertEquals(0x4000000000000000l, bm.getSubmaskElement(2, 0));
}
@Test
public void testCreateRectangleWidthHeightEasy() {
BitMask bm = BitMaskFactory.createRectangle(64, 1);
assertEquals(0xFFFFFFFFFFFFFFFFl, bm.getSubmaskElement(0, 0));
assertEquals(64, bm.getBounds().getWidth());
assertEquals(1, bm.getBounds().getHeight());
}
@Test
public void testCreateRectangleEasy() {
BitMask bm = BitMaskFactory.createRectangle(new BoundingBox(0, 0, 0, 63));
assertEquals(0xFFFFFFFFFFFFFFFFl, bm.getSubmaskElement(0, 0));
assertEquals(new BoundingBox(0, 0, 0, 63), bm.getBounds());
}
@Test
public void testCreateRectangleDoublyMisaligned() {
BitMask bm = BitMaskFactory.createRectangle(new BoundingBox(0, 4, 0, 68));
assertEquals(0xFFFFFFFFFFFFFFFFl, bm.getSubmaskElement(0, 0));
assertEquals(0x8000000000000000l, bm.getSubmaskElement(0, 64));
}