pauldwhitman’s gists

pauldwhitman / chessInCPart5-upLeft.c

Last active December 14, 2015 18:19

Part of the "Chess in C" blog post series. Calculates the possible up-left diagonal destinations of a bishop.

	/* Calculate possible up-left diagonal destinations
	* This requires the loop to iterate backwards as we are
	* checking cells BEFORE the bishop */
	for (i=7; i>=0; i--) {
	for (j=7; j>=0; j--){
	/* If 1) the cell to right is inbounds of the array and
	* 2) the cell isn't not on the final row */
	if ((j+1 != 8) && (i != 7)) {
	/* ...AND the above-right cell has a bishop OR a breadcrumb ... */
	if (board[i+1][j+1] == BISHOP \|\| board[i+1][j+1] == POTENTIAL_MOVE_BISHOP) {

pauldwhitman / chessInCPart5-iterateThroughBoardBackwards.c

Created March 10, 2013 11:13

Part of the "Chess in C" blog post series. This code iterates through the two-dimensional array board[][] backwards and zeroes out each element.

	/* Iterate backward through board */
	for (i = 7; i >= 0; i--) {
	for (j = 7; j >= 0; j--) {
	/* Zero out the square */
	board[i][j] = 0;
	}
	}

pauldwhitman / chessInCPart1-placeTwoBishops.c

Created March 10, 2013 11:07

Part of the "Chess in C" blog post series. Code to place two bishops on the board.

	board[4][4] = BISHOP;
	board[4][5] = BISHOP;

pauldwhitman / chessInCPart1-iterateThroughAndZeroOutBoard.c

Created March 10, 2013 11:06

Part of the "Chess in C" blog post series. Iterates through each square of the two-dimensional board array and assigns a zero value to the element.

pauldwhitman / chessInCPart1-switchingOnBoardValue.c

Created March 10, 2013 11:04

Part of the "Chess in C" blog post series. Switching on the board value.

pauldwhitman / chessInCPart1-nestedForLoop.c

Created March 10, 2013 11:02

Part of the "Chess in C" blog post series. The nested for loop.

pauldwhitman / chessInCPart1-drawBoard.c

Created March 10, 2013 11:00

Part of the "Chess in C" blog post series. The first iteration of the board printing code.

pauldwhitman / chessInCPart1-macros.c

Created March 10, 2013 10:57

Part of the "Chess in C" blog post series. Introduction to macros.

pauldwhitman / chessInCPart1-createBoard.c

Created March 10, 2013 10:54

Part of the "Chess in C" blog post series. Creates a two-dimensional array called board which simulates a chess board.

int board[8][8];

pauldwhitman / chessInCPart1-placePieces.c

Created March 10, 2013 10:51

Part of the "Chess in C" blog post series. Code to place one side worth of chess pieces on the board.