C# and Game(1)Visual Studio and C#arrays

C# and Game(1)Visual Studio and C#arrays

Install Visual Studio on MAC

Start the first Hello world example

using System;

namespace HelloWorld

{

class Hello

{

public static void Main(string[] args)

{

Console.WriteLine("Hello World!");

// Keep the console window open in debug mode.

Console.WriteLine("Press any key to exit.");

Console.ReadKey();

}

}

}

Same comments rule as JAVA.

Using System, more about the INPUT/OUTPUT of the system. https://docs.microsoft.com/en-us/dotnet/api/system.io?view=netframework-4.7

Arrays in C#

type[] arrayName, similar to JAVA, same type

//Carl's first code example

using System;

using System.Collections.Generic;

using System.Linq;

namespace HelloWorld

{

class Hello

{

public static void Main(string[] args)

{

// Specify the data source.

int[] scores = new int[] { 97, 92, 81, 60 };

// Define the query expression.

IEnumerable<int> scoreQuery =

from score in scores

where score > 80

select score;

// Execute the query.

foreach (int i in scoreQuery)

{

Console.Write(i + " ");

}

}

}

}

Single Dimensional Arrays

string[] stringArray = new string[6];

Multidimensional Arrays, I guess I will never use that.

int[,] array = new int[4, 2];

int[,] array4 = { { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 } };

int[,] array2Da = new int[4, 2] { { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 } };

Array operation foreach

int[] numbers = { 4, 5, 6, 1, 2, 3, -2, -1, 0 };

foreach (int i in numbers)

{

System.Console.Write(" " + i);

}

Passing Arrays Using ref and out

// Initialize the array:

int[] theArray = { 1, 2, 3, 4, 5 };

// Pass the array using ref:

FillArray(ref theArray);

int[] theArray; // Initialization is not required

// Pass the array to the callee using out:

FillArray(out theArray);

Implicitly Typed Arrays

var a = new[] { 1, 10, 100, 1000 }; // int[]

var b = new[] { "hello", null, "world" }; // string[]

References:

https://unity3d.com/

https://unity3d.com/learn/resources/downloads

https://unity3d.com/learn/tutorials/topics/scripting/installing-tools-unity-development?playlist=17117

https://msdn.microsoft.com/en-us/library/k1sx6ed2.aspx

array

https://docs.microsoft.com/en-us/dotnet/articles/csharp/programming-guide/arrays/

class and structure

https://docs.microsoft.com/en-us/dotnet/articles/csharp/programming-guide/classes-and-structs/