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Intro to programming HTML version

Using C# and Unity, but not about them

Contents
1 Introduction
 1.1 Notes
 1.2 Computer Languages, Books and Teaching
 1.3 Pedagogy
 1.4 Legal-ish
2 First program and printing
 2.1 Hooking up a simple program
 2.2 Statements, print
 2.3 Intro to computer math
 2.4 More writing program details
 2.5 Errors, Syntax errors
 2.6 Adding more programs
 2.7 more math
3 Variables, computer math
 3.1 Math with types
 3.2 Variables, declarations, simple assignment
 3.3 Identifiers
 3.4 Simple assignment, var use
 3.5 More assign and variable rules and examples:
 3.6 Declare/assign shortcuts
 3.7 Semi-useful variable and assign examples
 3.8 More error messages
 3.9 Doubles vs. floats
4 Input, more output, testing
 4.1 Input
 4.2 Using Update to make more interesting programs
 4.3 declare = shortcut and Inspector vars
 4.4 Replacing constants with variables
 4.5 Math shortcuts
 4.6 Fun 3D stuff
 4.7 more cute cube tricks
 4.8 Errors, funny stuff
5 Using a 3D environment
 5.1 Making a small room
 5.2 Color, Textures
 5.3 Adjusting the Camera
6 If statements
 6.1 Comparison Operators
 6.2 Some semi-useful ifs
 6.3 Compare precedence
 6.4 else
 6.5 And, Or
 6.6 Nested ifs
 6.7 Common errors
7 more if tricks
 7.1 falling through
 7.2 Swapping
 7.3 Incremental calculations
 7.4 Tricks with modulo
 7.5 Mixed and/or
 7.6 Switch Statements
8 Unity if examples
 8.1 bouncing
 8.2 Counting
 8.3 Delay counter
 8.4 State variables
9 Scope and Namespaces
 9.1 Scope
 9.2 Namespaces
10 More ifs and randomness
 10.1 Random rolls
 10.2 Random Positions
 10.3 More things to randomize
 10.4 Coin flips, percents, random tables
11 Functions, part I
 11.1 Intro Function examples
 11.2 Function rules
 11.3 More function examples
 11.4 functions with more math
 11.5 Common Errors
 11.6 Style
 11.7 Chains of functions
12 Functions, part II - parameters
 12.1 Parameters
 12.2 Rules
 12.3 More rule-showing examples
 12.4 Fun errors
 12.5 Multiple Inputs
13 Casting
 13.1 casting
 13.2 char type
14 Functions, part III - return
 14.1 Introduction
 14.2 return values
 14.3 Using value-returning functions
 14.4 More math functions
15 Constants and enums
 15.1 Constants
 15.2 enumerated types
 15.3 More enumerated types
16 Overloading and default parms
 16.1 Introduction
 16.2 Default parameters
 16.3 Style
17 booleans
 17.1 Boolean variables
 17.2 Bool rules
 17.3 Common bool tricks
 17.4 Testing tricks
18 Function examples
 18.1 Introduction
 18.2 Change me type functions
 18.3 Dice functions
 18.4 More style; types of functions
 18.5 Moving curve examples
 18.6 Reading keys
 18.7 Making a real function library
 18.8 Unity built-ins
19 Structs
 19.1 Cow struct example
 19.2 Common errors
 19.3 rules
 19.4 Builtin structs: Color, Vector3
 19.5 Constructors, struct literals
 19.6 Nested structs
 19.7 Structs as function inputs
 19.8 Structs as return values
 19.9 Uninitialized structs
20 Struct examples
 20.1 More Vector3, Color code
 20.2 More built-in functions
 20.3 Transform struct
 20.4 Rigidbodies
21 Float problems
 21.1 The Problem
 21.2 Solutions
 21.3 < vs <= in float compares
22 Loops
 22.1 Special infinite loop warning
 22.2 Number-sequence loops
 22.3 While loop rules
 22.4 Do it 10 times loops
 22.5 Loops with floats
 22.6 Go until done loops
 22.7 More oddball loops
 22.8 Infinite/broken loops
 22.9 Move and count loops
 22.10 Digit tricks
 22.11 Fencepost errors
 22.12 for loops
 22.13 Count plus formula loops
 22.14 do-while loop
23 Index Loops
 23.1 Indexes
 23.2 Variables as indexes
 23.3 String Loop examples
 23.4 Odd string loops
24 Pointers
 24.1 First walk-through
 24.2 Terms and Theory
 24.3 Common pointer/class use
 24.4 Functions and pointers
 24.5 null
 24.6 Errors
 24.7 Fake new’s
 24.8 Pointer compare (==)
 24.9 Old-style pointers
25 Pointers in Unity
 25.1 Using pointers in Unity
 25.2 Instantiate
 25.3 New’ing Inspector variables
26 Pointer examples
 26.1 Text change
 26.2 More time, and APIs
 26.3 Three platforms
 26.4 More prefab use
 26.5 Multiple scripts
27 Using indexed lists
 27.1 Intro
 27.2 Creating Lists
 27.3 More playing with indexes
 27.4 List loop examples
 27.5 Random item
 27.6 Two list tricks
 27.7 Size 0 and 1 lists
 27.8 Functions with lists
 27.9 errors
 27.10 Assign shortcut
28 Nested loops
 28.1 As a grid
 28.2 Pattern in pattern
 28.3 Wedge exercises
 28.4 break, continue
 28.5 List nested loops
29 Struct in struct
 29.1 Lists of structs
 29.2 Structs with Lists in them
 29.3 Lists of strings tricks
 29.4 2D lists
 29.5 Larger structures
 29.6 Giant game board example
 29.7 List of indexes
 29.8 Internal list pointers
30 Member functions
 30.1 Example and motivation
 30.2 More simple examples
 30.3 Using your own member functions
 30.4 Built-in member functions
 30.5 this
 30.6 Constructors
 30.7 Scope
 30.8 Style: member vs. non-member
31 Access modifiers
 31.1 How private variables work
 31.2 Classes as new types
 31.3 Interface/Implementation idea
32 Scripts as Classes
 32.1 How scripts really work
 32.2 Pointers to classes in Unity
33 Nested classes, static
 33.1 Nested enum’s, classes and public
 33.2 Static / namespaces
34 Reference parms
 34.1 ref rules
 34.2 Output parameters
 34.3 mixing real return and ref parms
 34.4 Pointers and References
 34.5 Raycast example
 34.6 Reference vs. reference?
35 Arrays
 35.1 Array rules
 35.2 shortcuts
 35.3 Arrays and functions
 35.4 Max size / real size tricks
 35.5 List / array conversion
 35.6 OverlapSphere Unity example
 35.7 2D arrays
36 Efficiency
 36.1 Most speed-ups don’t work
 36.2 Premature Optimization
 36.3 Not all code sections are equal
 36.4 Is it already fast enough?
 36.5 Will it cause more errors?
 36.6 Things that work
37 Debugging
 37.1 Test as you go
 37.2 How/what to test
 37.3 Tracking down bugs