/// <summary>
/// A new instance of GameEngine.
/// </summary>
public GameEngine()
{
GameStates = new Stack<GameState>();
InputMgr = new InputManager(this);
DeltaTime = new GameTime();
Window = new RenderWindow(new VideoMode(1280, 720), "Jeden");
}
public override void Update(GameTime gameTime)
{
if (CurrentHealth <= 0)
{
Parent.HandleMessage(new InvalidateMessage(this));
}
if (CurrentHealth > MaxHealth)
{
CurrentHealth = MaxHealth;
}
}
/// <summary>
/// Update all GameObjects attached to this GameState
/// </summary>
/// <param name="gameTime">The time difference to the last frame.</param>
public virtual void Update(GameTime gameTime)
{
for(int i = 0; i < GameObjects.Count; i++)
{
GameObjects[i].Update(gameTime);
}
}
/// <summary>
/// Updates the GameEngine.
/// </summary>
/// <param name="gameTime">The time difference to the last frame.</param>
void Update(GameTime gameTime)
{
InputMgr.Update(this);
GameStates.Peek().Update(gameTime);
}
/// <summary>
/// Runs the GameEngine.
/// </summary>
public void Run()
{
Stopwatch stopwatch = new Stopwatch();
Window.Closed += Window_Closed;
stopwatch.Start();
double TotalTime = 0;
GameTime step = new GameTime();
while (Window.IsOpen())
{
Window.DispatchEvents();
DeltaTime.ElapsedGameTime = stopwatch.Elapsed - DeltaTime.TotalGameTime;
DeltaTime.TotalGameTime = stopwatch.Elapsed;
AccumulatedTime += DeltaTime.ElapsedGameTime.TotalSeconds;
while (AccumulatedTime > TimeStep)
{
TotalTime += TimeStep;
step.ElapsedGameTime = new TimeSpan((long)(TimeStep * TimeSpan.TicksPerSecond));
step.TotalGameTime = new TimeSpan((long)(TotalTime * TimeSpan.TicksPerSecond));
Update(step);
Draw();
AccumulatedTime -= TimeStep;
}
}
stopwatch.Stop();
}