Assuming that you are programming in C/C++, you can always use the standard clrscr() function to clear the console (which is just a text-mode screen). I just don't think that is useful for animation, because you will always get a flickering screen. A smooth way would probably be sort of a double-buffering scheme. Generate your screen in an array and 'draw' it (puts() it) onto screen right over the previous one. No need for a clrscr(). Even better (but I'm not sure how to do that with standard C run-time library functions) is page flipping. I don't know how well or how fast the windows dos-box handles this, but the dos text screen mode (mode 3) has 8 pages you can use.
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