Chp 1 Programming
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What is Alice?
Alice is a programming environment that programs characters & objects in a virtual world using 3-dimensional space with each object containing properties.
What is an object?
Anything that can be represented by data in the memory of a computer and manipulated by a computer program.
A step-by-step set of instructions that tells a computer how to perform specific tasks
Can be tangible or abstract
Describe the object, weight, location and direction
Programs that manipulate the properties of an object
Class of objects
Set of similar objects that each have the same properties and methods but may have different values (like might be taller)
Each individual object is called an instance
The process of adding an individual object to a world
Object orientated programming
Integrated Development Environment--a computer program that is used to facilitate the writing of other computer programs has a Text editor, debugger and object library
Computes & returnes a value
- Describe the object in some way
- Programs that manipulate the properties on an object
Values that are stored in the properties of any one object
- Has four object titles
Shows properties, methods and functions
- Can be changed within other programs, but they cannot be changed or edited because their details are hidden
- No edit button
Example of Encapsulated
Methods are assembled here by clicking & dragging titles
Shows existing events & is used to create new events
- Consists of a condition, called an event trigger & the name of a method called an event handler
- Pressing the "s" key
Used to copy instruction tiles in Alice methods drag & drop it
To the left of the World window, shows the objects of the current Alice World
Event driven software
Software with events where user can manipulate with mouse & keyboard
User Created Methods
Has an edit button and user can change behaviors
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