Category Archives: games

Make silly eyes that track the mouse without flicker in C#

The example Make silly eyes that track the mouse in C# shows how to make eyes track the mouse position, but if you look closely as that program runs you will see a noticeable flicker. The solution is quite simple: … Continue reading

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Make silly eyes that track the mouse in C#

This example uses a Timer named tmrTick to track the mouse. Its Tick event handler, which is shown in the following code, updates the eyes. // The previous mouse location. private Point OldMousePos = new Point(-1, -1); // See if … Continue reading

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Solution: The 40 pound stone puzzle

  This is the solution to The 40 pound stone puzzle. If you haven’t read the puzzle yet, click here before you read the solution. This puzzle similar to some of the puzzles in my book Interview Puzzles Dissected. The … Continue reading

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Puzzle: The 40 pound stone

This is a variation of a puzzle given on Car Talk. It’s similar to some of the puzzles in my book Interview Puzzles Dissected. A farmer uses a double-pan balance and a 40 pound stone to measure 40 pound weights: … Continue reading

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Make the basis for a card game in C#

The goal of this example is to provide some support for building a card game. It shows how to make a class to represent cards and to to tell what card is displayed in a PictureBox. It’s actually relatively straightforward. … Continue reading

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Verify sizes of playing cards in C#

Recently I wanted to use some playing cards in a program so I looked online for some nice images. I could have included 55 or so separate images (including jokers and backs), but I decided it would be easier to … Continue reading

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Make a hangman game in C#

Special thanks to Jeff Scarterfield for the skeleton drawing used by the program. This example builds a simple hangman game that uses the dictionary created by the example Use LINQ to select words of certain lengths from a file in … Continue reading

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Make a cannon game in C#

This simple cannon game randomly positions a target house. Then when you click the Shoot button, it gets angle and speed information for the cannon and enables a timer. To keep the graphics and timing simple, the program uses a … Continue reading

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Five hats puzzle solution

If you haven’t read it yet, read the Five hats puzzle. Recall that the warden has three white hats and two black hats. If the first prisoner, Art, saw two black hats, then he would know that he had a … Continue reading

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Five hats puzzle

This “hats puzzle” was described on December 26, 2016 on NPR’s Car Talk show. Sadly Tommy died in 2014 and the show was a rebroadcast so this puzzler has probably been used before. My book Interview Puzzles Dissected doesn’t include … Continue reading

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