@Test
public void testIntersect() {
Rectangle faller = new Rectangle(0.77f, 0.68f, 2.0f, 4.0f);
Rectangle ground = new Rectangle(0.0f, 0.0f, 20.0f, 1.0f);
Rectangle intersection = faller.intersect(ground);
assertEquals(
"The whole width of the faller must be in the intersection.",
faller.width,
intersection.width,
EPSILON);
intersection = ground.intersect(faller);
assertEquals(
"The whole width of the faller must be in the intersection.",
faller.width,
intersection.width,
EPSILON);
Rectangle sideMoved = new Rectangle(0.29f, -3.0f, 2.0f, 4.0f);
Rectangle wall = new Rectangle(2.0f, -9.0f, 2.0f, 16.0f);
intersection = sideMoved.intersect(wall);
assertEquals("", sideMoved.height, intersection.height, EPSILON);
intersection = wall.intersect(sideMoved);
assertEquals("", sideMoved.height, intersection.height, EPSILON);
Rectangle positiveWall = new Rectangle(2.0f, 0.0f, 2.0f, 16.0f);
intersection = sideMoved.intersect(positiveWall);
assertEquals(0.29f, intersection.width, EPSILON);
assertEquals(sideMoved.height + sideMoved.y, intersection.height, EPSILON);
}
@Test
public void testOverlaps() {
Rectangle r1 = new Rectangle(3, 4, 2, 5);
Rectangle r2 = new Rectangle(4, 7, 1, 2);
Rectangle r3 = new Rectangle(4, 7, 9, 240);
Rectangle r4 = new Rectangle(24, 10, 3, 4);
assertTrue(r1.overlaps(r2));
assertTrue(r1.overlaps(r3));
assertFalse(r1.overlaps(r4));
}
@Test
public void testContainsFloatFloat() {
Rectangle toTest = new Rectangle(-4, -4, 8, 8);
assertTrue(toTest.contains(0, 0));
assertFalse(toTest.contains(-4, -4));
assertFalse(toTest.contains(-4, -2));
assertFalse(toTest.contains(8, 8));
assertTrue(toTest.contains(0, 0));
assertFalse(toTest.contains(-4.00f, -4.05f));
assertFalse(toTest.contains(-4.05f, -4.00f));
assertFalse(toTest.contains(-5.00f, -5.00f));
}