Animation Programs: Scenarios and Storyboards Alice

Step 1: Design Decide on the problem to be solved Design a solution We will use a storyboard design technique, commonly used in the film industry

Example The scenario is: The problem is: First Encounter After traveling through space, a robot-manned craft has just made a landing on a moon. The robot is on the moon and has set up a camera so earthbound scientists in Houston can view this historic event. The camera view shows the robot, the lunar Lander and some nearby rock formations. Suddenly an alien peeks out from behind a rock, surprising the robot. The robot looks around, spots the alien, and walks over to take a closer look. The alien is frightened and hides behind the rocks. The problem is: How can we create this animation?

Create Initial World Active Learning: Students create initial world. Illustrate use of quad view to position objects relative to one another.

Storyboard Option 1: Sketches

Storyboard Option 2: Screen Shots Initial scene The spiderRobot walks toward the alien

Storyboard Option 3: Text Form A textual storyboard is like a "to-do" list. The Learning to Program in Alice textbook puts a textual storyboard in a box: Do the following steps in order alien moves up alien says "Slithy toves?" robot's head turns around robot turns to look at alien Do together robot moves toward the alien robot legs walk alien moves down

Storyboard Java Programming outside of Alice A textual storyboard is like a "to-do" list. Lots of tools and methods are used to design a program outside of Alice with object oriented programming: Flow Charts UML – unified modeling language Agile design methods

Assignment Read Chapter 2 section 1

Section 2-1 Scenarios and Storyboards Four step process to create a program thsat animates a virtual world Read the scenario – a description of the problem Design – plan ahead Implement – write the program Test – see if it works

Section 2-1 Scenarios and Storyboards Read the scenario A scenario is a problem statement describing the overall animation in terms of what problem is to be solved or lesson to be learned The scenario provides answers to the following questions: What story is to be told What objects are needed What actions are to take place

Section 2-1 Scenarios and Storyboards The scenario provides ans- wers to the following questions: What story is to be told Tells a humorous story about a robot’s first encounter with an alien on a distant moon What objects are needed Robot, Lunar Lander, Alien The background should be a moon surface in a space world What actions are to take place Alien peeks from behind a rock, robot turns head, robot moves towards alien, alien hides, robot sends a message back to earth

Section 2-1 Design A textual storyboard is like a "to-do" list. The Learning to Program in Alice textbook puts a textual storyboard in a box: Do the following steps in order alien moves up alien says "Slithy toves?" robot's head turns around robot turns to look at alien Do together robot moves toward the alien robot legs walk alien moves down

Section 2-1 Implement The DVD has all objects properly positioned but not the code You can start from the DVD or from Scratch Create the initial scene Choose a space background Add spiderRobot, alienOnWheels, lunarLander, rocks

Section 2-1 Implement (cont.) A method is a segment of program code – notice my_first_method() – yours will be empty at first INSTRUCTOR: move to Alice and describe the program

Section 2-1 Implement (cont.) We take the textual story board or flow chart or visual story boards and implement the design Do the following steps in order alien moves up alien says "Slithy toves?" robot's head turns around robot turns to look at alien Do together robot moves toward the alien robot legs walk alien moves down robot turns to look at camera robot’s head turns red (to signal danger) robot says “Houston we have a problem!”

Section 2-1 Implement (cont.) Do in order versus Do together Do in order is sequential Do together is simultaneous Do the following steps in order alien moves up alien says "Slithy toves?" robot's head turns around robot turns to look at alien Do together robot moves toward the alien robot legs walk alien moves down robot turns to look at camera robot’s head turns red (to signal danger) robot says “Houston we have a problem!”

Section 2-1 Implement (cont.) The aliens move method – drag the move method inside the doinorder block The move method It takes arguments or parameters of direction and amount Do the following steps in order alien moves up alien says "Slithy toves?" robot's head turns around robot turns to look at alien Do together robot moves toward the alien robot legs walk alien moves down robot turns to look at camera robot’s head turns red (to signal danger) robot says “Houston we have a problem!”

image of all the methods Section 2-1 Add the other methods and blocks Alien on wheels say method Robot neck head turn method Robot turn to face method Do together block Robot move forward Do inorder Turn left leg Turn right leg Alien move Robot turn Robot set Pay attention to the image of all the methods and blocks. Make yours match.

Lab Chapter 2 Lab Lec1