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| 1 | +using System; |
| 2 | +using System.Collections.Generic; |
| 3 | +using System.Drawing; |
| 4 | +using System.Windows.Forms; |
| 5 | + |
| 6 | +namespace MatchingGame |
| 7 | +{ |
| 8 | + public partial class Form1 : Form |
| 9 | + { |
| 10 | + // firstClicked points to the first Label control |
| 11 | + // that the player clicks, but it will be null |
| 12 | + // if the player hasn't clicked a label yet. |
| 13 | + Label firstClicked = null; |
| 14 | + |
| 15 | + // secondClicked points to the second Label control |
| 16 | + // that the player clicks. |
| 17 | + Label secondClicked = null; |
| 18 | + |
| 19 | + // Use this Random object to choose random icons for the squares. |
| 20 | + Random random = new Random(); |
| 21 | + |
| 22 | + // Each of these letters is an interesting icon |
| 23 | + // in the Webdings font, |
| 24 | + // and each icon appears twice in this list. |
| 25 | + List<string> icons = new List<string>() |
| 26 | + { |
| 27 | + "!", "!", "N", "N", ",", ",", "k", "k", |
| 28 | + "b", "b", "v", "v", "w", "w", "z", "z" |
| 29 | + }; |
| 30 | + |
| 31 | + /// <summary> |
| 32 | + /// Assign each icon from the list of icons to a random square |
| 33 | + /// </summary> |
| 34 | + private void AssignIconsToSquares() |
| 35 | + { |
| 36 | + // The TableLayoutPanel has 16 labels, |
| 37 | + // and the icon list has 16 icons, |
| 38 | + // so an icon is pulled at random from the list |
| 39 | + // and added to each label. |
| 40 | + foreach (Control control in tableLayoutPanel1.Controls) |
| 41 | + { |
| 42 | + Label iconLabel = control as Label; |
| 43 | + if (iconLabel != null) |
| 44 | + { |
| 45 | + int randomNumber = random.Next(icons.Count); |
| 46 | + iconLabel.Text = icons[randomNumber]; |
| 47 | + iconLabel.ForeColor = iconLabel.BackColor; |
| 48 | + icons.RemoveAt(randomNumber); |
| 49 | + } |
| 50 | + } |
| 51 | + } |
| 52 | + |
| 53 | + |
| 54 | + public Form1() |
| 55 | + { |
| 56 | + InitializeComponent(); |
| 57 | + AssignIconsToSquares(); |
| 58 | + } |
| 59 | + |
| 60 | + /// <summary> |
| 61 | + /// Every label's Click event is handled by this event handler. |
| 62 | + /// </summary> |
| 63 | + /// <param name="sender">The label that was clicked.</param> |
| 64 | + /// <param name="e"></param> |
| 65 | + private void label_Click(object sender, EventArgs e) |
| 66 | + { |
| 67 | + // The timer is only on after two non-matching |
| 68 | + // icons have been shown to the player, |
| 69 | + // so ignore any clicks if the timer is running |
| 70 | + if (timer1.Enabled == true) |
| 71 | + return; |
| 72 | + |
| 73 | + Label clickedLabel = sender as Label; |
| 74 | + |
| 75 | + if (clickedLabel != null) |
| 76 | + { |
| 77 | + // If the clicked label is black, the player clicked |
| 78 | + // an icon that's already been revealed -- |
| 79 | + // ignore the click. |
| 80 | + if (clickedLabel.ForeColor == Color.Black) |
| 81 | + // All done - leave the if statements. |
| 82 | + return; |
| 83 | + |
| 84 | + // If firstClicked is null, this is the first icon |
| 85 | + // in the pair that the player clicked, |
| 86 | + // so set firstClicked to the label that the player |
| 87 | + // clicked, change its color to black, and return. |
| 88 | + if (firstClicked == null) |
| 89 | + { |
| 90 | + firstClicked = clickedLabel; |
| 91 | + firstClicked.ForeColor = Color.Black; |
| 92 | + |
| 93 | + // All done - leave the if statements. |
| 94 | + return; |
| 95 | + } |
| 96 | + |
| 97 | + // If the player gets this far, the timer isn't |
| 98 | + // running and firstClicked isn't null, |
| 99 | + // so this must be the second icon the player clicked |
| 100 | + // Set its color to black. |
| 101 | + secondClicked = clickedLabel; |
| 102 | + secondClicked.ForeColor = Color.Black; |
| 103 | + |
| 104 | + // Check to see if the player won. |
| 105 | + CheckForWinner(); |
| 106 | + |
| 107 | + // If the player clicked two matching icons, keep them |
| 108 | + // black and reset firstClicked and secondClicked |
| 109 | + // so the player can click another icon. |
| 110 | + if (firstClicked.Text == secondClicked.Text) |
| 111 | + { |
| 112 | + firstClicked = null; |
| 113 | + secondClicked = null; |
| 114 | + return; |
| 115 | + } |
| 116 | + |
| 117 | + // If the player gets this far, the player |
| 118 | + // clicked two different icons, so start the |
| 119 | + // timer (which will wait three quarters of |
| 120 | + // a second, and then hide the icons). |
| 121 | + timer1.Start(); |
| 122 | + } |
| 123 | + } |
| 124 | + |
| 125 | + /// <summary> |
| 126 | + /// This timer is started when the player clicks |
| 127 | + /// two icons that don't match, |
| 128 | + /// so it counts three quarters of a second |
| 129 | + /// and then turns itself off and hides both icons. |
| 130 | + /// </summary> |
| 131 | + /// <param name="sender"></param> |
| 132 | + /// <param name="e"></param> |
| 133 | + private void timer1_Tick(object sender, EventArgs e) |
| 134 | + { |
| 135 | + // Stop the timer. |
| 136 | + timer1.Stop(); |
| 137 | + |
| 138 | + // Hide both icons. |
| 139 | + firstClicked.ForeColor = firstClicked.BackColor; |
| 140 | + secondClicked.ForeColor = secondClicked.BackColor; |
| 141 | + |
| 142 | + // Reset firstClicked and secondClicked |
| 143 | + // so the next time a label is |
| 144 | + // clicked, the program knows it's the first click. |
| 145 | + firstClicked = null; |
| 146 | + secondClicked = null; |
| 147 | + } |
| 148 | + |
| 149 | + /// <summary> |
| 150 | + /// Check every icon to see if it is matched, by |
| 151 | + /// comparing its foreground color to its background color. |
| 152 | + /// If all of the icons are matched, the player wins. |
| 153 | + /// </summary> |
| 154 | + private void CheckForWinner() |
| 155 | + { |
| 156 | + // Go through all of the labels in the TableLayoutPanel, |
| 157 | + // checking each one to see if its icon is matched. |
| 158 | + foreach (Control control in tableLayoutPanel1.Controls) |
| 159 | + { |
| 160 | + Label iconLabel = control as Label; |
| 161 | + |
| 162 | + if (iconLabel != null) |
| 163 | + { |
| 164 | + if (iconLabel.ForeColor == iconLabel.BackColor) |
| 165 | + return; |
| 166 | + } |
| 167 | + } |
| 168 | + |
| 169 | + // If the loop didn’t return, it didn't find |
| 170 | + // any unmatched icons. |
| 171 | + // That means the user won. Show a message and close the form. |
| 172 | + MessageBox.Show("You matched all the icons!", "Congratulations!"); |
| 173 | + Close(); |
| 174 | + } |
| 175 | + |
| 176 | + } |
| 177 | +} |
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