Game Programming Class5
Contents
Game Services
Review Game Components
IntroGameLibrary
Turn the console class into a service
Each GameService needs to have a unique interface so that there is an entry in the system types table. The interface allows the game to return the correct type.
- GameConsole.cs
All of these files are available in the IntoGameLibrary Project in the classfolders.
Input Controller Mongame
from project IntroPacManMovementController file PacManController.cs
<csharp> InputHandler input; //game service to handle input public Vector2 Direction {get; private set;} ...
public PacManController(Game game)
{
//get input handler from game services
input = (InputHandler)game.Services.GetService<IInputHandler>();
if (input == null)
{
throw new Exception("PacMan controller depends on InputHandler service please add Input Handler as a service first");
}
...
public void Update() //update accesses InputHandler
{
//Input for update from analog stick
GamePadState gamePad1State = input.GamePads[0]; //HACK hard coded player index
#region LeftStick
Vector2 pacStickDir = Vector2.Zero;
if (gamePad1State.ThumbSticks.Left.Length() > 0.0f)
{
pacStickDir = gamePad1State.ThumbSticks.Left;
pacStickDir.Y *= -1; //Invert Y Axis
... </csharp>
The MonoGamePacMan game component then uses the controller
<csharp> internal PacManController controller { get; private set; } ... public MonoGamePacMan(Game game)
: base(game)
{
this.controller = new PacManController(game);
...
}
... public override void Update(GameTime gameTime)
{
//Elapsed time since last update
float time = (float)gameTime.ElapsedGameTime.TotalMilliseconds;
this.controller.Update();
this.Location += ((this.controller.Direction * (time / 1000)) * Speed); //Simple Move
this.Rotate = this.controller.Rotate;
...
</csharp>
Input Controller Unity
PlayerController from https://iam.colum.edu:8443/!/#GPMonogame3/view/head/trunk/jeffUnity/UnityGameDemos/Assets/Scripts/PacMan/PlayerController.cs
<csharp> public Vector2 direction = new Vector2();
private Vector2 keyDirection; private Vector2 padDirection;
... void Update () {
HandleKeyboard();
HandleGamepad();
...
private void HandleGamepad()
{
//Gamepad
padDirection.x = padDirection.y = 0;
//and keyboard unity already sums them together
padDirection.x = Input.GetAxis("Horizontal");
padDirection.y = Input.GetAxis("Vertical");
if (padDirection.magnitude > 0)
{
//Debug.Log(padDirection + " " + padDirection.magnitude + " " + (padDirection.magnitude > 0));
direction += padDirection;
}
}
</csharp>
Player.cs from https://iam.colum.edu:8443/!/#GPMonogame3/view/head/trunk/jeffUnity/UnityGameDemos/Assets/Scripts/PacMan/Player.cs
<csharp> private PlayerController controller;
public Vector2 Direction = new Vector2(1, 0);
... void Start()
{
//Get PlayerController from game object
controller = GetComponent<PlayerController>();
//Log error if controller is null will throw null refernece exception eventually
if (controller == null)
{
Debug.LogWarning("GetComponent of type " + typeof(PlayerController) + " failed on " + this.name, this);
}
...
// Update is called once per frame
void Update()
{
//Check for input from PlayerController
if (this.controller.hasInputForMoverment)
{
this.Direction = this.controller.direction; //Get Direction from PlayerController
</csharp>
Homework
InputControllerMonogame
InputControllerUnity
