holistic mobile game development with unity 1 @ 2015 taylor & francis. all rights reserved

Procedural LiteracyHolistic Mobile Game Development with Unity

1@ 2015 Taylor & Francis. All rights Reserved.

Introduction Use computational and visual methods

to explore the patterns and dynamics at the core of computer game code

Develop a mastery of the processes, data structures, and algorithms found in all processes that form the foundation of programming languages

@ 2015 Taylor & Francis. All rights Reserved. 2

Programming versus Scripting Programming languages

Machine code: binary, strings, instruction set○ eg. Cortex-A9 CPU implements Thumb-2

Assembly language: symbolic representation, assembler○ eg. Thumb-2: MOV R0,#15


Programming versus Scripting Programming languages

Compiled language: intuitive, English-like, translated by a compiler

Interpreter language: scripting languages○ eg. JavaScript, Lua, C#


Scripting Literacy Anatomy of C#

namespace myCeeSharpNamespace { class holisticUnityCeeSharp {

public static void Main(string[] args) { System.Console.WriteLine(“Hey!”);

} }

}


Scripting Literacy


LogicLogic Statements: Boolean algebraAND, OR ...NOT, NAND, NOR, XOR, XNORTruth tables

Comments// This is a single line comment. /* This is a multi-line

comment. */

Scripting Literacy


VariablesModified block of computer memory used

to store a valueData types

Scripting Literacy Operators

Arithmetic○ =, +, -, *, /

Relational○ >, <, >=, <=, ==, !=


FunctionsBlocks of code

performing specialized operations

Libraries

Scripting Literacy Loops

Conditional statements

Multiple executionsfor loop


Conditional StatementsUse Boolean algebraDivert flowif else

Scripting Literacy


Arrays String together same datatypes One dimensional Multi-dimensional Store multiple data or objects

Scripting Literacy Classes and Objects


Scripting Literacy Classes and Objects

Constructors○ Main function call and allocates memory

Properties/Variables○ float xPos = myPosition.x;

Functions/Methods○ myPosition.Set(5.7,1.2,3.0);


Scripting Literacy Yields and Coroutines

Freeze?Pause the execution of the code

and not effect the game loop


Scripting Literacy C# versus JavaScript

Primary differences○ How the variables are declared○ How the functions are defined


JavaScriptC#

Scripting Literacy Logical Errors and Syntactical Errors Common Coding Errors

1. No semicolon at the end of a statement


Scripting Literacy

2. A missing matching parenthesis

3. A line break inside a stringDebug.Log(“Hi

There“);Or:Debug.Log (“Hi” +

“There”);


Scripting Literacy

4. The wrong casing• Debug or debug

○ error CS0103: The name ‘debug’ does not exist in the current context

5. The wrong spelling


Scripting Literacy

6. The use of a reserved word for a variable or class name

7. The filename doesn’t match the class name


Scripting Literacy

8. A float has been initialized without an “f” on the end

9. The wrong type of value is being assigned to a variable

10. The variables being passed to a function are not the correct datatype


Game Mathematics Literacy Points

x, y and z axes planes


Game Mathematics Literacy Vectors

○ Direction and length


Game Mathematics Literacy Angles

NormalizingDot product

○ Forward and backward

Cross product○ Turning

direction


Game Mathematics Literacy Affine Transformations

Constant proportionsCombination of:

○ translations (moving)○ scalings (resizing)○ rotations (orienting)○ skew


Procedural Content Generation Fractals

Algorithmically generated patternsStrange attractor


Procedural Content Generation Perlin Noise

Randomness generated from sine and cosine waves

Height map


Summary

Procedural Literacy

C# scripting and an examination of fundamental programming constructs

Essential mathematics for 3D game programming The power of algorithms and mathematics in the Minecraft

landscape recreation Exploring the boundary between visual beauty and logical

constructions Introduction to why and how these fundamentals are

implemented over and over again Why you need this knowledge to be a games developer


holistic mobile game development with unity 1 @ 2015 taylor & francis. all rights reserved

Documents