This C program simulates the game “snake” which is usually available in old mobile phones. A string of characters moves on the screen according to arrow keys pressed by user. If it touches itself or screen boundary, the program terminates. When the snake moves, in arbitrary screen positions some digit (1-9) appears. The objective of the game is to make the snake eat the said digit, so that it is added to the score. When a digit is eaten, the size of the snake increases by the number of characters equal to the value of the digit.
Everyone knows that memory management is a difficult and dangerous chore in C++. This series of three articles will show you that the conventional wisdom is not true. When approached correctly, C++’s seemingly archaic memory-management scheme actually provides an opportunity to create spectacular programs – programs that would not be possible with more modern languages that handle memory automatically.
This C program prints out the first Fibonacci series of N numbers. In mathematics, the Fibonacci numbers are a sequence of numbers named after Leonardo of Pisa, known as Fibonacci. The first number of the sequence is 0, the second number is 1, and each subsequent number is equal to the sum of the previous two numbers of the sequence itself, thus creating the sequence 0, 1, 1, 2, 3, 5, 8, etc. The standard form of writing Fibonacci series is:
Over here I’ll shove in some basics, like coordinate systems, world and object coordinate systems, etc. For now I’ll assume you’re at least a little familiar with 3D programming. Blah blah blah, differences between immediate and retained mode, etc etc.
This is a very simple DirectDraw sample using Microsoft DirectX under Visual C++.