From bb377e19b2bfca097b6fa119bcc46bade727cf43 Mon Sep 17 00:00:00 2001
From: Kamil Kaminski <kamilkss@gmail.com>
Date: Mon, 14 Mar 2011 11:23:26 -0500
Subject: support 1 by x pieces

---
 klotski.cpp | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 68 insertions(+), 12 deletions(-)

diff --git a/klotski.cpp b/klotski.cpp
index a04eee2..20b3a14 100644
--- a/klotski.cpp
+++ b/klotski.cpp
@@ -253,6 +253,7 @@ Grid loadGrid(char **argv)
 int canMoveLeft(string board[], int row_sz, int col_sz, Piece piece)
 {
     int ret = 0;
+    int i;
     int offset = ( ((piece.getRow() - 1 ) * col_sz) + piece.getCol() ) - 1;
 
     if (piece.getH() == 1)
@@ -273,7 +274,11 @@ int canMoveLeft(string board[], int row_sz, int col_sz, Piece piece)
     }
     else if (piece.getW() == 1)
     {
-        int offset2 = offset + col_sz; /* fix me later */
+        int *offset2 = new int[piece.getH()-1];
+
+        for (i = 0; i < piece.getH(); i++)
+            offset2[i] = (offset + (col_sz * i));
+        //int offset2 = offset + col_sz; /* fix me later */
 
         if (!offset || (offset % col_sz == 0))
             return 0;
@@ -287,16 +292,25 @@ int canMoveLeft(string board[], int row_sz, int col_sz, Piece piece)
             }
 #endif
 
-        while (board[offset-1] == "." && board[offset2-1] == ".")
+        while (board[offset-1] == ".")
         {
+            for (i = 0; i < piece.getH(); i++)
+            {
+                if (board[offset2[i]-1] != ".")
+                    goto end_tag;
+            }
+
             offset--;
-            offset2--;
+            for (i = 0; i < piece.getH(); i++)
+                offset2[i] -= 1;
+
             ret++;
 
             if (offset % col_sz == 0)
                 break;
         }
 
+end_tag:
         return ret;
     }
     else
@@ -309,6 +323,7 @@ int canMoveLeft(string board[], int row_sz, int col_sz, Piece piece)
 int canMoveRight(string board[], int row_sz, int col_sz, Piece piece)
 {
     int ret = 0;
+    int i;
     int offset = ( ((piece.getRow() - 1 ) * col_sz) + piece.getCol() ) - 1;
 
     if (piece.getH() == 1)
@@ -335,21 +350,34 @@ int canMoveRight(string board[], int row_sz, int col_sz, Piece piece)
         offset += piece.getW();
         offset--;
 
-        int offset2 = offset + col_sz;  /* fix me later */
+        int *offset2 = new int[piece.getH()-1]; /* FIXME: memory leaks */
+
+        for (i = 0; i < piece.getH(); i++)
+            offset2[i] = (offset + (col_sz * i));
+        //int offset2 = offset + col_sz;  /* fix me later */
 
         if (!offset || ((offset+1) % col_sz == 0))
             return 0;
 
-        while (board[offset+1] == "." && board[offset2+1] == ".")
+        while (board[offset+1] == ".")
         {
+            for (i = 0; i < piece.getH(); i++)
+            {
+                if (board[offset2[i]-1] != ".")
+                    goto end2_tag;
+            }
+
             offset++;
-            offset2++;
+            for (i = 0; i < piece.getH(); i++)
+                offset2[i] += 1;
+
             ret++;
 
             if (offset % col_sz == 0)
                 break;
         }
 
+end2_tag:
         return ret;
     }
     else
@@ -362,6 +390,7 @@ int canMoveRight(string board[], int row_sz, int col_sz, Piece piece)
 int canMoveUp(string board[], int row_sz, int col_sz, Piece piece)
 {
     int ret = 0;
+    int i;
     int offset = ( ((piece.getRow() - 1 ) * col_sz) + piece.getCol() ) - 1;
 
     if (piece.getW() == 1)
@@ -382,21 +411,34 @@ int canMoveUp(string board[], int row_sz, int col_sz, Piece piece)
     }
     else if (piece.getH() == 1)
     {
-        int offset2 = offset + piece.getW() - 1; /* fix me later */
+        int *offset2 = new int[piece.getW()-1]; /* FIXME: memory leaks */
+
+        for (i = 0; i < piece.getW(); i++)
+            offset2[i] = offset + i;
+        //int offset2 = offset + piece.getW() - 1; /* fix me later */
 
         if (!offset || offset < col_sz)
             return 0;
 
-        while (board[offset-col_sz] == "." && board[offset2-col_sz] == ".")
+        while (board[offset-col_sz] == ".")
         {
+            for (i = 0; i < piece.getW(); i++)
+            {
+                if (board[offset2[i]-col_sz] != ".")
+                    goto end3_tag;
+            }
+
             offset -= col_sz;
-            offset2 -= col_sz;
+            for (i = 0; i < piece.getH(); i++)
+                offset2[i] -= col_sz;
+
             ret++;
 
             if (offset-col_sz < 0)
                 break;
         }
 
+end3_tag:
         return ret;
     }
     else
@@ -409,6 +451,7 @@ int canMoveUp(string board[], int row_sz, int col_sz, Piece piece)
 int canMoveDown(string board[], int row_sz, int col_sz, Piece piece)
 {
     int ret = 0;
+    int i;
     int offset = ( ((piece.getRow() - 1 ) * col_sz) + piece.getCol() ) - 1;
 
     if (piece.getW() == 1)
@@ -432,21 +475,34 @@ int canMoveDown(string board[], int row_sz, int col_sz, Piece piece)
     }
     else if (piece.getH() == 1)
     {
-        int offset2 = offset + piece.getW() - 1; /* fix me later */
+        int *offset2 = new int[piece.getW()-1]; /* FIXME: memory leaks */
+
+        for (i = 0; i < piece.getW(); i++)
+            offset2[i] = offset + i;
+        //int offset2 = offset + piece.getW() - 1; /* fix me later */
 
         if (offset + col_sz > row_sz * col_sz)
             return 0;
 
-        while (board[offset+col_sz] == "." && board[offset2+col_sz] == ".")
+        while (board[offset+col_sz] == ".")
         {
+            for (i = 0; i < piece.getW(); i++)
+            {
+                if (board[offset2[i]+col_sz] != ".")
+                    goto end4_tag;
+            }
+
             offset += col_sz;
-            offset2 += col_sz;
+            for (i = 0; i < piece.getH(); i++)
+                offset2[i] += col_sz;
+
             ret++;
 
             if (offset+col_sz > row_sz * col_sz)
                 break;
         }
 
+end4_tag:
         return ret;
     }
     else
-- 
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