/// <summary>
/// transition to the next state in execution
/// </summary>
/// <param name="nextState">the name of the state to transition to</param>
public void Transition(string nextState)
{
// if there's no current state running, and we've somehow tried to transition, throw an exception
if (currentState == null)
{
throw new NullReferenceException("no current state");
}
// get the next state from the current state's list of transitions
State next = currentState.Transitions[nextState];
// if no state was returned, then the current state cannot transition to that state
if (nextState == null)
{
throw new NullReferenceException("no state to transition to");
}
// leave the current state
currentState.execLeave();
// set the state objects correctly
previousState = currentState;
currentState = next;
// enter the (new) current state
currentState.execEnter();
}
public void Transition(string nextState)
{
if(currentState == null)
{
throw new NullReferenceException("no current state");
}
State next = currentState.Transitions[nextState];
if(nextState == null)
{
throw new NullReferenceException("no state to transition to");
}
currentState.execLeave();
previousState = currentState;
currentState = next;
currentState.execEnter();
}
/// <summary>
/// update the state machine
/// </summary>
/// <param name="gameTime">the current game time</param>
public void Update(GameTime gameTime)
{
// if there's no current state running, and we've somehow tried to update the state machine, throw an exception
if (currentState == null)
{
throw new NullReferenceException("no start state");
}
// if we havent started yet, start!
if (started == false)
{
currentState.execEnter();
started = true;
}
//System.Diagnostics.Debug.WriteLine("current state: " + currentState.Name);
// update the current state
currentState.execUpdate(gameTime);
}
/// <summary>
/// transition to the next state in execution
/// </summary>
/// <param name="nextState">the name of the state to transition to</param>
public void Transition(string nextState)
{
System.Diagnostics.Debug.WriteLine(nextState);
// if there's no current state running, and we've somehow tried to transition, throw an exception
if(currentState == null)
{
throw new NullReferenceException("no current state");
}
// get the next state from the current state's list of transitions
State next = currentState.Transitions[nextState];
// if no state was returned, then the current state cannot transition to that state
if(nextState == null)
{
throw new NullReferenceException("no state to transition to");
}
// leave the current state
currentState.execLeave();
// set the state objects correctly
previousState = currentState;
currentState = next;
// enter the (new) current state
currentState.execEnter();
}