def get_cursor_id_from_self_and_kids(self, xy, absolute=False) -> str:
if absolute:
xy = util.sub(xy, self.get_xy(absolute=True))
if not util.rect_contains((0, 0, *self.get_size()), xy):
return None
for c in self._children:
r = c.get_rect()
if util.rect_contains(r, xy):
cursor_id = c.get_cursor_id_from_self_and_kids(util.sub(
xy, (r[0], r[1])),
absolute=False)
if cursor_id is not None:
return cursor_id
return self.get_cursor_id_at(xy)
def get_option_idx_at(self, xy, absolute=False):
rel_xy = xy if not absolute else util.sub(xy, self.get_xy(
absolute=True))
for idx, opt in enumerate(self.options):
rect = opt[0]
if util.rect_contains(rect, rel_xy):
return idx
return None
def get_effective_rotation(self, camera_pos=(0, 0, 0)):
towards_camera = util.set_length(util.sub(camera_pos, self.position()),
1)
rot_to_camera = matutils.get_xyz_rot_to_face_direction(
towards_camera,
do_pitch=self._vert_billboard,
do_yaw=self._horz_billboard)
return util.add(self.rotation(), rot_to_camera)
def send_click_to_self_and_kids(self,
xy,
absolute=False,
button=1) -> bool:
"""returns: whether anything consumed the click"""
if absolute:
xy = util.sub(xy, self.get_xy(absolute=True))
if not util.rect_contains((0, 0, *self.get_size()), xy):
return False
for c in self._children:
r = c.get_rect()
if util.rect_contains(r, xy):
new_xy = util.sub(xy, (r[0], r[1]))
if c.send_click_to_self_and_kids(new_xy,
absolute=False,
button=button):
return True
return self.handle_click(xy, button=button)
def get_matrix_looking_at2(eye_xyz, target_xyz, up_vec):
n = util.set_length(util.sub(eye_xyz, target_xyz), 1)
u = util.set_length(util.cross_prod(up_vec, n), 1)
v = util.cross_prod(n, u)
res = numpy.array(
[[u[0], u[1], u[2],
util.dot_prod(util.negate(u), eye_xyz)],
[v[0], v[1], v[2],
util.dot_prod(util.negate(v), eye_xyz)],
[n[0], n[1], n[2],
util.dot_prod(util.negate(n), eye_xyz)], [0, 0, 0, 1]],
dtype=numpy.float32)
return res
def cam_direction(t):
target = (0, y(t), 10) # a little ahead of the ship's position, with some vertical offset
return util.set_length(util.sub(target, cam_position(t)), 1) # point at ship