# -*- coding: utf-8 -*- """ Template for the main solution code in Part 5 of the project. The objective of the template files is to give you an idea of the most important functions that you have to implement, what input they will need and what output they should produce. To make things work in practice you will have to add more functionalities than the ones outlined, and you might have to adapt the interfaces to fit your specific approach. You are of course free (and encouraged) to structure the code in any way you want! """ import ast2000tools.constants as const import ast2000tools.utils as utils from ast2000tools.space_mission import SpaceMission import part_1 import part_3 import part_4 def simulate_spacecraft_trajectory(system, start_time, start_position, start_velocity, duration, n_time_steps_per_year): """ Here you can implement the ballistic trajectory simulation for challenge A of Part 5 of the project. """ # Load the exact planet trajectories from Part 2 planet_times, planet_positions = np.load('planet_trajectories.npy') # Insert awesome code here... # You will probably also need these quantities: # const.G_sol # system.star_mass # system.masses return final_time, final_position, final_velocity def run_trajectory_planning_simulation(mission, number_of_boxes, number_of_particles_in_box, box_side_length, temperature, box_hole_area, initial_fuel_mass, launch_direction, time_of_launch, destination_planet_idx, boost_times, boost_velocities): """ Here you can implement the trajectory planning simulation for challenge B of Part 5 of the project. """ # Simulate launch rocket_position_after_launch, \ rocket_velocity_after_launch, \ fuel_mass_after_launch, \ time_after_launch \ = part_3.simulate_full_launch(mission, number_of_boxes, number_of_particles_in_box, box_side_length, temperature, box_hole_area, initial_fuel_mass, launch_direction, time_of_launch)[4:] # Insert awesome code here... # You will also need the following method: # part_1.compute_fuel_mass_needed_for_boost # You might want to generate some plots to inspect the results. def send_spacecraft(interplanetary_travel, destination_planet_idx, boost_times, boost_velocities): """ Here you can implement the commanding of the spacecraft for challenge C of Part 5 of the project. """ # Insert awesome code here... # You might want to generate some cool videos and pictures # to view in MCAst. # Record the state after entering a stable orbit around the destination planet interplanetary_travel.record_destination(destination_planet_idx) # Prevent the following code from executing when calling `import part_5` if __name__ == '__main__': # Print a message if a newer version of ast2000tools is available utils.check_for_newer_version() # Construct SpaceMission instance for my mission seed = utils.get_seed('my_username') mission = SpaceMission(seed) # Run planning simulations to determine launch parameters and boosts here... # Perform the real launch with the parameters resulting from the planning part_4.launch_and_orient_spacecraft(mission, number_of_boxes, number_of_particles_in_box, box_side_length, temperature, box_hole_area, initial_fuel_mass, launch_direction, time_of_launch) # Initiate the real interplanetary travel interplanetary_travel = mission.begin_interplanetary_travel() # Send the spacecraft on its way to the destination planet send_spacecraft(interplanetary_travel, destination_planet_idx, boost_times, boost_velocities) # Save the mission instance after entering orbit SpaceMission.save('mission_after_part_5.pickle', mission)