def step(self, dt):
if self.at_end_of_spline:
# time to move to next spline
self.t = 0
self.dest_index = (self.dest_index + 1) % len(self.x_points)
self.x_fun = math_parser.pythonify(
self.get_spline_string(self.x_points[self.dest_index - 1], self.x_points[self.dest_index])
)
self.y_fun = math_parser.pythonify(
self.get_spline_string(self.y_points[self.dest_index - 1], self.y_points[self.dest_index])
)
self.at_end_of_spline = False
self.t += dt
inner = self.speed * 0.01 * self.t
if inner > math.pi:
self.at_end_of_spline = True
def __init__(self, x_path_string, y_path_string):
self.t = 0
self.path_strings = (x_path_string, y_path_string) # used for serialization
self.x_fun = math_parser.pythonify(x_path_string)
self.y_fun = math_parser.pythonify(y_path_string)