quote:Original post by Ekim_Gram
In what portion of the code is that located? I've looked through it and a lot of it is Win32 stuff and I couldn't find anything commented or something like that.

Yes, I just realized, it is badly commented :\. ...

Here is the part where I draw the pieces and use the dirty rectangle approach, hopefully a little more understandable with the new comments ...

////////////////////////////////////////////////////////////////  Process Piece//// This function, handles the dropping the //  rotation and the moving of the pieces. //////////////////////////////////////////////////////////////void ProcessPiece(){ bool bdropping = false; currentPieceTime += frameTime; if(currentPieceTime > TimeToDrop || bForceDrop) {  previousX = pieceX;  previousY = pieceY;  previousRotation = pieceRotation;    pieceY++;  currentPieceTime -= TimeToDrop;  bdropping = true; } else if(!bInput)  return;  if(!bdropping) {  previousX = pieceX;  /*AsciiRis uses the "dirty rectangles" approach to draw the pieces, it draws a character and then draws over it with a blank space*/  previousY = pieceY;  /*we are assigning "previousX" and "previousY" to "PieceX" and "pieceY" in order to use the previous position to tell our blank space where to draw next*/  previousRotation = pieceRotation;   } if (bDropPiece) { } /*here is where we say, if the left key is down move the piece to the left*/ else if (bLeft) {      /*pieceX is the horizontal axis, decrementing pieceX with the -- symbol we are telling the cursor to go left (or maybe you prefer to think of it as going backwards, like the backspace key)*/  pieceX--;     bLeft = false;  /*we set bleft to false again to prevent the piece from continuing to move left when we let go of the left arrow key*/ } else if (bRight)  /*if the right key is pressed*/ {  pieceX++;  /*this instance of pieceX is being incremented, thus telling the cursor to move right (or forward, however you like to think of it) */  bRight = false;  /*set it to false again so that we know when the key isnt being held down any longer*/ } else if (bRotCounterClock) {  pieceRotation--;      /*turn counterclockwise*/  bRotCounterClock = false;  if(pieceRotation < 0)   pieceRotation += ROTATIONCOUNT;  /*increment stepping through each of the four rotations*/ } else if (bRotClock) {  pieceRotation++;      /*turn clockwise*/  bRotClock = false;   if(pieceRotation >= ROTATIONCOUNT)  /*decrement stepping through each of the four rotations*/   pieceRotation -= ROTATIONCOUNT; } if (Collision())       /*a piece collides if...*/ {  if(pieceY <= 3)       /*if piece is less than or equal to 3 spaces toward the top of the screen...*/   {    GameOver( pCurrentPieceTime); /*then games over*/   }  if(bdropping && pieceY != previousY) /*check if piece are still falling*/  {   if(pieceX != previousX)    /*check if piece moved on the X axis*/   {    pieceX = previousX;    /*if piece did move on the X axis, then set its new position*/    if(!Collision())    /*test for collision again*/    {     bmoved = true;    /*yep piece moved, return a true*/     return;    }   }      else   {    for(int i = 0; i < 4; i++)     board[Pieces[currentPiece].pos[pieceRotation][i].x + pieceX - MINX][Pieces[currentPiece].pos[pieceRotation][i].y + pieceY - MINY - 1] = true;    CreatePiece( pCurrentPieceTime );   }  }  else  {   pieceRotation = previousRotation; // again we use the dirty rectanges approach to draw over the last rotation when the new one is drawn.   pieceX = previousX;    pieceY = previousY;  } } else   bmoved = true;}

Here is the part where i actually draw the pieces...

 //if a piece has been moved draw it in its new position  if(bmoved)  {   DrawPieces(currentPiece, previousX, previousY, previousRotation, ' '); /*here is the blank space we use to cover the characters that make up each piece, whenever the piece moves position*/   DrawPieces(currentPiece, pieceX, pieceY, pieceRotation, '*');     /*heres is the character that we use to make the pieces*/      bmoved = false;  }  ProcessFullRow(TimeToDrop);

You can see that I use an asterisk ('*') to draw the pieces and then a blank space(' ') to draw over the asterisk when it moves position.

quote:
by the way, where did you learn that stuff?

I have been learning C for 3 years but this was the first time I had ever used the win32api. Once I had used a couple of functions my confidence kicked in and it all started to seem much easier, I still have a very long way to go but at the moment I'm working on writing AsciiRis2 with classes and adding functionality for the mouse as well as a difficulty setting and maybe a high scores table (I need the practice).

quote:
And I must say, that is a great game (I first found it when i asked a question about tetris)

Thank you very much, its very nice to get positive feedback.

Hopefully my explanation was clear, if not please feel free to ask.
An ASCII tetris clone... | AsciiRis

[edited by - Tiffany Smith on September 2, 2003 3:06:01 AM]