def move_box(self, pos: Point2d, vel: Vector2d,
size: Vector2d) -> Tuple[Point2d, Vector2d]:
distance = vel.norm
maximum = int(distance)
if distance < 0:
return pos, vel
fraction = 1.0 / float(maximum + 1)
for i in range(0, maximum + 1):
new_pos = pos + vel * fraction # type: Point2d
if self.test_box(new_pos, size):
hit = False
if self.test_box(Point2d(pos.x, new_pos.y), size):
new_pos.y = pos.y
vel.y = 0
hit = True
if self.test_box(Point2d(new_pos.x, pos.y), size):
new_pos.x = pos.x
vel.x = 0
hit = True
if not hit:
new_pos = pos
vel = Vector2d(0, 0)
pos = new_pos
return pos, vel
def move_camera(camera: Vector2d, focus: Point2d) -> None:
# Objective 7: Find the correct value for half the window width
# YOUR CODE HERE...
half_win_width = 500
# Objective 7: Uncomment and try out the different camera movements
#1. always in center:
camera.x = focus.x - half_win_width