Printing is an important part when programming. Printing the US flag to the system console was a small part of “the shape game” for kids, in which the players will select the correct name for a given shape. The flag of the united states Basic Requirements: You are required to print the American flag to the console using just “*” and “=”. The number of stars...
Smooth nature snake – game redev with Kotlin (part 3)
In part 2, I introduced how to make the serpentine movement. We continue this article by covering the turning mechanism for the snake. Challenges in turning animation Fig 2: Classic snake game design with blocks and grids As we want our snake looks as smooth as possible, the two challenges are: Firstly, the head should slowly change to the target direction rather than a sudden turn. As the head...
Smooth nature snake game – re-dev with Kotlin (part 1)
When my students proposed a snake game for their projects, I thought it is kind of boring. They are all the same old ideas. Nevertheless, how you want it to be do matter as the game mechanics and animations can be much varied. snake game Why I redev the snake game? Did I try to reinvent the wheel – Not quite! What I include in this post addresses several challenges to simulate a fully...
Check if a string is a palindrome
A palindrome is a word, number, phrase, or other sequence of characters which reads the same backward as forward, such as madam, racecar. There are also numeric palindromes, including date/time stamps using short digits 11/11/11 11:11 and long digits 02/02/2020. Sentence-length palindromes ignore capitalization, punctuation, and word boundaries, so “A man, a plan, a canal, Panama!” is...
String interpolation in different programming languages
This article quickly lists out several example to create and manipulate a string from data in different programming languages.