/// <summary>
/// This function updates the screen state.
/// </summary>
/// <param name="gameTime">current game time</param>
/// <param name="currentKey">current key press</param>
public void Update(GameTime gameTime, KeyboardState currentKey)
{
this.currentKey = currentKey; //initialise current key press
switch (screenState)
{
case ScreenState.Title:
title.Update(currentKey);
if (title.exit)
{
title = null;
setScreen("MainMenu");
}
break;
case ScreenState.MainMenu:
mainMenu.Update(currentKey);
if (mainMenu.exit)
{
switch (mainMenu.selection)
{
case 0:
mainMenu = null;
setScreen("Difficulty");
break;
case 1:
mainMenu = null;
setScreen("Controls");
break;
case 2:
mainMenu = null;
setScreen("Title");
break;
}
}
break;
case ScreenState.Difficulty:
difficulty.Update(currentKey);
if (difficulty.back)
{
difficulty = null;
setScreen("MainMenu");
}
else if (difficulty.exit)
{
int setting = difficulty.selection;
difficulty = null;
setScreen("Gameplay", setting);
break;
}
break;
case ScreenState.Gameplay:
gameplay.Update(gameTime, currentKey);
if (gameplay.exit)
{
if (gameplay.wins)
{
TimeSpan time = gameplay.TimeCount;
gameplay = null;
setScreen("Win", time);
}
else
{
int score = gameplay.Score;
gameplay = null;
setScreen("Lose", score);
}
}
break;
case ScreenState.Lose:
lose.Update(currentKey);
if (lose.exit)
{
lose = null;
setScreen("MainMenu");
}
break;
case ScreenState.Win:
win.Update(currentKey);
if (win.exit)
{
win = null;
setScreen("MainMenu");
}
break;
case ScreenState.Controls:
controls.Update(currentKey);
if (controls.exit)
{
controls = null;
setScreen("MainMenu");
}
break;
}
}
/// <summary>
/// This function sets the screen state.
/// </summary>
/// <param name="stateString">state name</param>
/// <param name="parameter">integer parameter</param>
public void setScreen(String stateString, int parameter)
{
switch (stateString)
{
case "Gameplay":
screenState = ScreenState.Gameplay;
gameplay = new Gameplay();
gameplay.LoadContent(gameplayFont, parameter, gameplayTextures, playerTextures, playerSounds, enemyTextures);
break;
case "Lose":
screenState = ScreenState.Lose;
lose = new Lose();
lose.LoadContent(loseTexture, completeFont, parameter);
break;
}
}