GravityChooser.GravityChooserHelpScreen Class Reference

This screen implements the game help. More...

Inheritance diagram for GravityChooser.GravityChooserHelpScreen:

List of all members.

Public Member Functions
	GravityChooserHelpScreen (string[] screenMessage)
	Constructor of the screen.
override void	LoadContent ()
	Load graphics content for the game.
override void	UnloadContent ()
	Unload graphics content used by the game.
override void	Update (GameTime gameTime, bool otherScreenHasFocus, bool coveredByOtherScreen)
	Updates the state of the screen.
override void	HandleInput (InputState input)
	Lets the game respond to player input. Unlike the Update method, this will only be called when the gameplay screen is active.
override void	Draw (GameTime gameTime)
	Draws the gameplay screen.

---

Detailed Description

This screen implements the game help.

Definition at line 25 of file GravityChooserHelpScreen.cs.

---

Constructor & Destructor Documentation

GravityChooser.GravityChooserHelpScreen.GravityChooserHelpScreen

(

string[]

screenMessage

)

Constructor of the screen.

Parameters:

screenMessage

The help message to display.

Definition at line 61 of file GravityChooserHelpScreen.cs.

        {
            // New message list
            this.messages = new List<string>();

            // Store screen message
            this.messages.AddRange(screenMessage);

            // Add exit message
            string[] exitMessage = { "", "", "[Key] or (Button) to return to Main Menu" };
            this.messages.AddRange(exitMessage);

            TransitionOnTime = TimeSpan.FromSeconds(0.5);
            TransitionOffTime = TimeSpan.FromSeconds(0.5);
        }

---

Member Function Documentation

override void GravityChooser.GravityChooserHelpScreen.Draw

(

GameTime

gameTime

)

[virtual]

Draws the gameplay screen.

Reimplemented from NewGamePhysics.StateManager.GameScreen.

Definition at line 171 of file GravityChooserHelpScreen.cs.

        {
            // Get drawing helpers and textures
            PrimitiveBatch primitiveBatch = ScreenManager.PrimitiveBatch;
            SpriteBatch spriteBatch = ScreenManager.SpriteBatch;
            Viewport viewport = ScreenManager.GraphicsDevice.Viewport;
            SpriteFont font = ScreenManager.Fonts["game"];

            // Draw score summary
            Color color = Color.White;
            Vector2 origin = new Vector2(0, 0);
            Vector2 position = new Vector2(viewport.Width * 0.05f, viewport.Height * 0.05f);
            float scale = 0.5f;
            spriteBatch.Begin();
            for (int i = 0; i < numRows; i++)
            {
                string message = messages[i];
                if (textAlpha[i] > 0.0f)
                {
                    if (string.IsNullOrEmpty(message))
                    {
                        // Skip this row
                        position.Y += ((float)font.LineSpacing * 0.5f * scale);
                    }
                    else
                    {
                        color = new Color(Color.White, MathHelper.SmoothStep(0.0f, 1.0f, textAlpha[i]));
                        spriteBatch.DrawString(
                            font,
                            message,
                            position,
                            color,
                            0,
                            origin,
                            scale,
                            SpriteEffects.None,
                            0);
                        position.Y += ((float)font.LineSpacing * 1.2f * scale);
                    }
                }
            }
            spriteBatch.End();

            // If the game is transitioning on or off, fade it out to black.
            if (TransitionPosition > 0)
            {
                ScreenManager.FadeBackBufferToBlack(255 - TransitionAlpha);
            }

            base.Draw(gameTime);
        }

override void GravityChooser.GravityChooserHelpScreen.HandleInput

(

InputState

input

)

[virtual]

Lets the game respond to player input. Unlike the Update method, this will only be called when the gameplay screen is active.

Reimplemented from NewGamePhysics.StateManager.GameScreen.

Definition at line 140 of file GravityChooserHelpScreen.cs.

        {
            if (input == null)
            {
                throw new ArgumentNullException("input");
            }

            // Look up inputs for the active player profile.
            PlayerIndex playerIndex = ControllingPlayer.Value;

            KeyboardState keyboardState = input.CurrentKeyboardStates[(int)playerIndex];
            GamePadState gamePadState = input.CurrentGamePadStates[(int)playerIndex];

            // The game pauses either if the user presses the pause button, or if
            // they unplug the active gamepad. This requires us to keep track of
            // whether a gamepad was ever plugged in, because we don't want to pause
            // on PC if they are playing with a keyboard and have no gamepad at all!
            bool gamePadDisconnected = !gamePadState.IsConnected &&
                                       input.GamePadWasConnected[(int)playerIndex];

            // Back to main menu
            if (input.IsMenuSelect(ControllingPlayer, out playerIndex))
            {
                GravityChooserLoadingScreen.Load(ScreenManager, false, null, new GravityChooserBackgroundScreen(),
                                                               new GravityChooserMainMenuScreen());
            }
        }

override void GravityChooser.GravityChooserHelpScreen.LoadContent

(

)

[virtual]

Load graphics content for the game.

Reimplemented from NewGamePhysics.StateManager.GameScreen.

Definition at line 80 of file GravityChooserHelpScreen.cs.

        {
            if (this.contentManager == null)
            {
                this.contentManager = new ContentManager(ScreenManager.Game.Services, "Content");
            }

            // Reset text fader 
            numRows = messages.Count;
            currentRow = 0;
            textAlpha = new float[numRows];
            for (int i = 0; i < numRows; i++)
            {
                textAlpha[i] = 0.0f;
            }

            // Reset game time
            ScreenManager.Game.ResetElapsedTime();
        }

override void GravityChooser.GravityChooserHelpScreen.UnloadContent

(

)

[virtual]

Unload graphics content used by the game.

Reimplemented from NewGamePhysics.StateManager.GameScreen.

Definition at line 103 of file GravityChooserHelpScreen.cs.

        {
            this.contentManager.Unload();
        }

override void GravityChooser.GravityChooserHelpScreen.Update	(	GameTime	gameTime,
		bool	otherScreenHasFocus,
		bool	coveredByOtherScreen
	)			[virtual]

Updates the state of the screen.

Reimplemented from NewGamePhysics.StateManager.GameScreen.

Definition at line 115 of file GravityChooserHelpScreen.cs.

        {
            base.Update(gameTime, otherScreenHasFocus, coveredByOtherScreen);

            if (IsActive)
            {
                // Fade logic
                if (currentRow < numRows)
                {
                    textAlpha[currentRow] += fadeSpeed;
                    if (string.IsNullOrEmpty(messages[currentRow]) ||
                       (textAlpha[currentRow] >= 1.0f))
                    {
                        textAlpha[currentRow] = 1.0f;
                        currentRow++;
                    }
                }
            }
        }

---

The documentation for this class was generated from the following file:

• C:/Users/Andreas Schiffler/Desktop/SVN/NewGamePhysics/GravityChooser/Screens/GravityChooserHelpScreen.cs