X-Git-Url: http://git.shiar.nl/netris.git/blobdiff_plain/3b453bab5c990f862a4915ae4e5e4a0e90b167f2..daf766b0c845cbb2624678068acf146e3f48ef91:/board.c

diff --git a/board.c b/board.c
index 9044f78..3ff3cb6 100644
--- a/board.c
+++ b/board.c
@@ -15,8 +15,6 @@
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id: board.c,v 1.15 1999/05/16 06:56:24 mhw Exp $
  */
 
 #include "netris.h"
@@ -162,7 +160,7 @@ int RefreshBoard(int scr)
 	for (y = Players[scr].boardVisible - 1; y >= 0; y--)
 		if ((c = changed[scr][y])) { //line changed
 			for (x = 0; c; (c >>= 1), x++)
-				if ((c & 1) && board[scr][y][x] != oldBoard[scr][y][x]) {
+				if (c & 1 && board[scr][y][x] != oldBoard[scr][y][x]) {
 					PlotBlock(scr, y, x, board[scr][y][x]);
 					oldBoard[scr][y][x] = board[scr][y][x];
 				}
@@ -295,21 +293,21 @@ int BlockFree(int scr, int x, int y, unsigned char z)
 
 	if (y == 0) return 0; //at bottom
 	curblock = GetBlock(scr, y, x) & z;
-	if (curblock & 16  && !BlockFree(scr, x, y-1, z & 208)) return 0;
-	if (curblock & 32  && !BlockFree(scr, x, y+1, z & 224)) return 0;
-	if (curblock & 64  && !BlockFree(scr, x+1, y, z & 112)) return 0;
-	if (curblock & 128 && !BlockFree(scr, x-1, y, z & 176)) return 0;
-	if ((z = GetBlock(scr, y-1, x)) & 32) return 1; //stuck to block below
+	if (curblock & 0x10 && !BlockFree(scr, x, y-1, z & 0xD0)) return 0;
+	if (curblock & 0x20 && !BlockFree(scr, x, y+1, z & 0xE0)) return 0;
+	if (curblock & 0x40 && !BlockFree(scr, x+1, y, z & 0x70)) return 0;
+	if (curblock & 0x80 && !BlockFree(scr, x-1, y, z & 0xB0)) return 0;
+	if ((z = GetBlock(scr, y-1, x)) & 0x20) return 1; //stuck to block below
 	if (z > BT_none) return 0; //some other piece below
 	return 1; //nothing below
 }
 
 int BlockFall(int scr, int x, int y, unsigned char z)
 { //Drop down block (x,y) and those sticking to it mask <z>
-	if (GetBlock(scr, y, x) & z & 16)  BlockFall(scr, x, y-1, z & 208);
-	if (GetBlock(scr, y, x) & z & 32)  BlockFall(scr, x, y+1, z & 224);
-	if (GetBlock(scr, y, x) & z & 64)  BlockFall(scr, x+1, y, z & 112);
-	if (GetBlock(scr, y, x) & z & 128) BlockFall(scr, x-1, y, z & 174);
+	if (GetBlock(scr, y, x) & z & 0x10) BlockFall(scr, x, y-1, z & 0xD0);
+	if (GetBlock(scr, y, x) & z & 0x20) BlockFall(scr, x, y+1, z & 0xE0);
+	if (GetBlock(scr, y, x) & z & 0x40) BlockFall(scr, x+1, y, z & 0x70);
+	if (GetBlock(scr, y, x) & z & 0x80) BlockFall(scr, x-1, y, z & 0xB0);
 	SetBlock(scr, y-1, x, GetBlock(scr, y, x));
 	SetBlock(scr, y, x, BT_none);
 }
@@ -322,10 +320,10 @@ int CheckFall(int scr)
 	if (!Game.gravity) return 0;
 	for (y = Players[scr].boardHeight - 1; y > 0; y--)
 		for (x = 0; x < Players[scr].boardWidth; x++) {
-			if (((z = GetBlock(scr, y, x)) > BT_none) && ((z & 160) == 0)) {
+			if ((z = GetBlock(scr, y, x)) > BT_none && (z & 0xA0) == 0) {
 			//doesn't stick left/up => topleft block
-				if (BlockFree(scr, x, y, 240)) {
-					BlockFall(scr, x, y, 240);
+				if (BlockFree(scr, x, y, 0xF0)) {
+					BlockFall(scr, x, y, 0xF0);
 					fallen++;
 				} //move blocks down
 			} //block present
@@ -362,9 +360,9 @@ int ClearFullLines(int scr)
 		while (LineIsFull(scr, from)) {
 			from++; //skip
 			for (x = 0; x<Players[scr].boardWidth; x++) {
-				SetBlock(scr, from, x, GetBlock(scr, from, x)&239);
+				SetBlock(scr, from, x, GetBlock(scr, from, x) & 0xEF);
 				if (from > 1)
-					SetBlock(scr, from-2, x, GetBlock(scr, from-2, x)&223);
+					SetBlock(scr, from-2, x, GetBlock(scr, from-2, x) & 0xDF);
 			} //don't stick blocks to line which we'll remove
 		} //full lines
 		CopyLine(scr, from++, to++);
@@ -389,9 +387,9 @@ void InsertJunk(int scr, int color, int count, int column)
 		CopyLine(scr, y, y + count);
 	for (y = 0; y < count; ++y)
 		for (x = 0; x < Players[scr].boardWidth; ++x)
-			SetBlock(scr, y, x, (x == column) ? BT_none : color + 1
-				+ 64 * (x != column-1 && x < Players[scr].boardWidth-1)
-				+ 128 * (x != column+1 && x > 0));
+			SetBlock(scr, y, x, x == column ? BT_none : color + 1
+				+ 0x40 * (x != column-1 && x < Players[scr].boardWidth-1)
+				+ 0x80 * (x != column+1 && x > 0));
 	Players[scr].curY += count; //move piece up..
 	for (y = 0; y < count; ++y)
 		if (ShapeFits(Players[scr].curShape, scr, Players[scr].curY - 1, Players[scr].curX))