Ball Levitation - Simple Ways to Develop a Game App For Windows Phone 8

<local:WanderingBall Name="Ball3" HorizontalAlignment="Left" Height="32" Margin="150,147,0,0" VerticalAlignment="Top" Width="30" RenderTransformOrigin="4.877,3.512"/>

<local:WanderingBall Name="Ball4" HorizontalAlignment="Left" Height="32" Margin="47,0,0,0" VerticalAlignment="Top" Width="30" RenderTransformOrigin="4.877,3.512"/>

<TextBlock Name="GameOver" HorizontalAlignment="Left" Height="92" FontWeight="Bold" Foreground="Violet" Visibility="Collapsed" FontSize="27" Margin="10,98,0,0" TextWrapping="Wrap" Text="?????????? ?????????" VerticalAlignment="Top" Width="415"/>

</Grid>

</Grid>

</Grid>

</phone:PhoneApplicationPage>

WanderingBall.xaml

<UserControl x:Class="?????_???????.WanderingBall"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

mc:Ignorable="d"

FontFamily="{StaticResource PhoneFontFamilyNormal}"

FontSize="{StaticResource PhoneFontSizeNormal}"

Foreground="{StaticResource PhoneForegroundBrush}"

d:DesignHeight="480" d:DesignWidth="480">

<Grid x:Name="LayoutRoot" Background="Transparent">

<Ellipse Fill="PaleGreen" />

</Grid>

</UserControl>

C# Code snippet behind this APP

MainPage.xaml.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Navigation;

using Microsoft.Phone.Controls;

using Microsoft.Phone.Shell;

using ?????_???????.Resources;

namespace ?????_???????

{

public partial class MainPage : PhoneApplicationPage

{

// Constructor

public MainPage()

{

InitializeComponent();

// Sample code to localize the ApplicationBar

//BuildLocalizedApplicationBar();

}

private void Button_Click_1(object sender, RoutedEventArgs e)

{

NavigationService.Navigate(new Uri("/PlayScreen.xaml", UriKind.Relative)); // Navigate to Play Screen

}

}

}

PlayScreen.xaml.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Navigation;

using Microsoft.Phone.Controls;

using Microsoft.Phone.Shell;

using System.Windows.Media;

using System.Windows.Threading;

namespace ?????_???????

{

public partial class PlayScreen : PhoneApplicationPage

{

public PlayScreen()

{

InitializeComponent();

this.Disc.ManipulationDelta += Disc_ManipulationDelta; // Hook Dock ManipulationDelta event to process touch actions

this.timer.Tick += new EventHandler(timer_Tick); // Have a Timer for level and life updates

this.timer.Start(); // Start the timer for frequent update

ButtonTransformGroup.Children.Add(translateTransform); // Add translate transform in to button transformgroup for triggering the translate action of the disc

Disc.RenderTransform = ButtonTransformGroup; // assign that transform to disc render

}

private TranslateTransform translateTransform = new TranslateTransform(); // Instance for controls translate actions

private TransformGroup ButtonTransformGroup = new TransformGroup(); // Instance of Transfrom group that hold the translate actions

private int points = 0; // varaiable for points

private string header = string.Empty; // Varaiable for header text

DispatcherTimer timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(0.5) }; // Instance of a timer for the regular updates of values

private void timer_Tick(object sender, EventArgs e)

{

int length = 0; // Counts of the ball that levitated

if (this.Ball1.Visibility == System.Windows.Visibility.Visible) // Check the visibility of ball 1

{

length++; // Increase the count by one

}

if (this.Ball2.Visibility == System.Windows.Visibility.Visible) // Check the visibility of ball 1

{

length++; // Increase the count by one

}

if (this.Ball3.Visibility == System.Windows.Visibility.Visible) // Check the visibility of ball 1

{

length++; // Increase the count by one

}

if (this.Ball4.Visibility == System.Windows.Visibility.Visible) // Check the visibility of ball 1

{

length++; // Increase the count by one

}

this.Life.Height = length * 150; // Indication value for life bar

points++; // Point increament

points = points+length; // Point value according to the balls levitated

if (length == 0 && points % 2 == 0 || length > 500) // Blinking animation logic

{

this.GameOver.Visibility = System.Windows.Visibility.Visible;

}

else

{

if (length != 0)

{

header = "????????? : " + points.ToString() + " ????? : " + length.ToString(); // Updating the points and life value

this.Header.Text = header;

this.Level.Height = points;

}

this.GameOver.Visibility = System.Windows.Visibility.Collapsed;

}

}

void Disc_ManipulationDelta(object sender, System.Windows.Input.ManipulationDeltaEventArgs e)

{

translateTransform.X += e.DeltaManipulation.Translation.X; // Assign Delta Manipulation value to transfrom for touch movement

}

}

}

WanderingBall.xaml.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Navigation;

using Microsoft.Phone.Controls;

using Microsoft.Phone.Shell;

using System.Windows.Shapes;

using System.Windows.Media;

using System.Windows.Threading;

namespace ?????_???????

{

public partial class WanderingBall : UserControl

{

DispatcherTimer timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(.001)}; // Instance of a timer that handle wandering actions of ball

private int top = 0; // Variable for top value

private int bottom = 0; // Variable for bottom value

private int left = 0; // Variable for left value

private int right = 0; // Variable for right value

private bool leftToRight = true; // Varibale indication of vertical direction

private bool topToBottom = true; // Varibale indication of horizontal direction

public int Step = 5; // Variable for ball step movement

private void setPosition()

{

if (top == 0 || bottom == 0 || left == 0 || right == 0) // Check to assign initial margin

{

top = (int)this.Margin.Top; // Assign top margin

bottom = (int)this.Margin.Bottom; // Assign bottom margin

left = (int)this.Margin.Left; // Assign left margin

right = (int)this.Margin.Right; // Assign right margin

}

var parent = this.Parent as Grid; // Get parent grid

Button disc = parent.Children[0] as Button; // Get the disc for bounds

var discRect = disc.RenderTransform.TransformBounds(new Rect(175, 0, disc.ActualWidth, disc.ActualHeight)); // Get the Disc bounds

if (this.Margin.Left >= parent.ActualWidth - this.ActualWidth) // Check for right most border

{

leftToRight = false; // Change the direction from right tot left

}

if (this.Margin.Left <= 0) // Check for left most border

{

leftToRight = true; // Change the direction to left to right

}

if (this.Margin.Top <= disc.Margin.Top && this.Margin.Top >= (disc.Margin.Top - this.ActualHeight / 2 ) && this.Margin.Left < discRect.Left + disc.Width && this.Margin.Left > discRect.Left) // Check if ball hits disc

{

topToBottom = false; // Change the direction from bottom to top

}

if (this.Margin.Top <= 0) // Check for top most border

{

topToBottom = true; // Change the direction from top to bottom

}

if (this.Margin.Top >= parent.ActualHeight) // ball's ultimate bottom

{

this.Visibility = System.Windows.Visibility.Collapsed; // Collapse the fallen ball

timer.Stop(); // Stop the timer

}

if (leftToRight) // Check for the horizontal direction

{

left = left + Step; // move ball left to right

}

else

{

left = left - Step; // move ball right to left

}

if (topToBottom) // Check for the vertical direction

{

top = top + Step; // move ball top to bottom

}

else

{

top = top - Step; // move ball bottom to top

}

}

private void timer_Tick(object sender, EventArgs e)

{

setPosition(); // call for positioning

this.Margin = new Thickness(left, top, right, bottom); // Adjust the ball margin

}

public WanderingBall()

{

InitializeComponent();

this.timer.Tick+=new EventHandler(timer_Tick); // Hook the event of timer that handle ball wandering

this.timer.Start(); // Start the timer

}

}

}