Agenda 9/9

Review:

Notes on homework process:

• Must submit when ready
• Bulletin for me to follow the sharing process.
• Did you like this way of doing a group project? Did you learn? Can you be tested now on what you learned? Did it enable shirking or help with motivation and hard parts?
• (next week Part of homework – email me subject – csc160 group or QA– how did the group project work for you?)
• have them download and look at one other person's world

Learning objectives of last week:

• Enough familiarity with Alice to use it
• project process – design, code, test (project management)
• line by line flow – the way a program thinks
• Ability to use of methods and know when to use them
• Types – world, object
• Reasons to use:
• Break into smaller parts
• Teach behavior
• more sense if 2 or more lines
• teach the right object
• why is it not a great idea to make the rabbit hop a method of the flower – try exporting
• why is it not a great idea to make the rabbit hop a method of the world – export rabbit
• Reuse your work
• Bunny hop, slide, hop and then dancer moves to bunny and spins and then bunny hops again – what methods would you create

Coming objectives:

• Use functions
• Variables for methods
• Variable types and setting and using variables
• Parameters
• Property variables
• Create functions
• Extra
• Asking user for input
• vehicle

Movement and camera: - not so important

• Attributes that change: position, orientation
• Get up and turn to effect your yaw
• Make your character turn right and left
• Make your character's arm turn right and left
• Get up and change your pitch
• Repeat for character and his left arm
• Get up and change your arm roll
• Repeat for character and his right leg
• Camera
• Move camera and drop dummy
• Move camera and drop dummy again
• Put set point of view 2 times in your movie
• play

Practice Review:

• One scene with bunny and dancer
• Bunny hop method
• Slide
• Bunny hop
• Then dancer move to bunny
• Dancer slides
• Then dancer spins
• Then bunny hops again
• Make bunny hop up over down
• Add a comment

Use a function

• make bunny hop up as far as dancer

• See how amount changes?

String:

• Make bunny say how far to hop (use world / what / to string)

Method variable:

• Make bunny hop better with up / over / down
• Create a variable to store how far so I can work with it
• Naming – lower case
• Show box
• Mention type
• Local – only the method knows about it – the world has no clue
• Set the value initially
• Use the variable
• Reset the value in code
• ½ up / over
• Ask function how high
• Ask user how high (world function drag over variable set)

Parameter

• Want to give control outside the method
• Pass it length for hop
• Other types
• Pass it something for the bunny to say

Probably skip - To show use of parameters without any other variable:

§ Spin dancer with right arm in air

• Roll right arm left .25
• Roll right upper arm left .8
• Roll right leg right .6
• Turn right body

§ Spin

§ Hop

§ Spin

§ Want second spin on left arm

• Great to tell it which one
• A box to hold choice and method can look at choice

Create a new functions and use it:

• to ask the user their first name and last name and return the full name.
• remember a+b function

Homework:

Switch roles: Write a story (or continue last story) including:

• 2 scenes
• 2 characters each with
• 1 method (something it does – no return) that uses a variable
• 1 function (something it does – with a return)
• Example:
• to ask the user their first name and last name and return the full name.
• to add 50 to a number (parameter in) and then divide that result by 2
• to zoom into another object (that other object is a parameter) and return the distance to it minus 1.
• Either the method or the function needs to use a parameter.