Say you are developing a game like Chess, Go, Checkers, Tic-Tac-Toe or Memory. In each of those games the game board is a rectangle looking playfield of different size (rows x columns). Tic-Tac-Toe is 3×3, Checkers is 8×8, while Go can be 19×19 or 13×13 and similar.
In a game with an arbitrary number of game fields you might want to have the board look as closely to square as possible (rectangle where height and width are the same). Think of Memory. Let’s say we have 24 cards, that is 12 pairs. If you want to place them in a rectangular grid, most similar to square, you would go for 4 x 6 (or 6 x 4) board size (as it would look more square like than 3 x 8 and 2 x 12 or 1 x 24 would be too wide).
Continue reading
The second law of thermodynamics, in short version and when read by a programmer, states that “any collection of objects tends not to be sorted” 🙂
In one of my applications, a tab on the page control hosts a TWebBrowser displaying PDF (and other supported) documents. Having the “PDF View” tab active, other tabs of the page control are hidden from the user – as this is how the page control functions.
I’m sure you’ve seen it already. When the program starts it takes a picture of the current desktop, the picture is then cut into a number of rectangular pieces (all of the same size). A piece at some random position is “removed”. The main code randomly swaps that piece with the one next to it. Only pieces adjacent to the removed one can be moved into it.
Ah, nostalgia.
Finally, last step in making my (/your) Delphi application not only 
