chessai

commit 7fb5a359a3652e07966f73b74bc8696d4f87e68c
parent ec953ce2e13839fd253fa481fa7b4eee5d159ca9
Author: Jul <jul@9o.is>
Date:   Fri,  7 Dec 2012 18:20:16 -0500

Able to get surrounding coordinates of a coordinate.

Diffstat:
M
src/main/java/chess/ChessCoordinate.java
 | 
31
+++++++++++++++++++++++++++++++

1 file changed, 31 insertions(+), 0 deletions(-)
diff --git a/src/main/java/chess/ChessCoordinate.java b/src/main/java/chess/ChessCoordinate.java
@@ -3,6 +3,9 @@ package chess;
 import chess.utils.ChessColor;
 import chess.utils.ChessDirection;
 
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * Check
  */
@@ -139,6 +142,34 @@ public class ChessCoordinate {
         return new ChessCoordinate(file,rank);
     }
 
+    public List<ChessCoordinate> surroundingCoordinates(int d) {
+        List<ChessCoordinate> coors = new ArrayList<ChessCoordinate>();
+
+        coors.add(new ChessCoordinate(file+d,rank+d));
+        coors.add(new ChessCoordinate(file+d,rank));
+        coors.add(new ChessCoordinate(file+d,rank-d));
+        coors.add(new ChessCoordinate(file,rank-d));
+        coors.add(new ChessCoordinate(file-d,rank-d));
+        coors.add(new ChessCoordinate(file-d,rank));
+        coors.add(new ChessCoordinate(file-d,rank+d));
+        coors.add(new ChessCoordinate(file,rank+d));
+
+        for(int i=0; i<coors.size(); i++) {
+            if(coors.get(i).invalid())
+                coors.remove(i);
+        }
+        return coors;
+    }
+
+    public List<ChessCoordinate> surroundingCoordinates(int d, int d1) {
+        List<ChessCoordinate> coors = new ArrayList<ChessCoordinate>();
+
+        for(int i=d; i<=d1; i++) {
+            coors.addAll(surroundingCoordinates(i));
+        }
+        return coors;
+    }
+
     public boolean invalid() {
         return file > 'h' || file < 'a' ||
                 rank > ChessCoordinate.MAX || rank < 1;