init

2026-08-13 15:26:16 +10:00 · 2017-04-14 17:39:38 +08:00
commit bb1cf0bc87
64 changed files with 3940 additions and 0 deletions
@@ -0,0 +1,100 @@
+package au.com.seek.domain;
+
+
+public enum Direction {
+    NORTH {
+        @Override
+        public Direction turnRight() {
+            return EAST;
+        }
+
+        @Override
+        public Direction turnLeft() {
+            return WEST;
+        }
+
+        @Override
+        public int stepValueOnXAxis() {
+            return 0;
+        }
+
+        @Override
+        public int stepValueOnYAxis() {
+            return STEP_VALUE;
+        }
+    },
+    EAST {
+        @Override
+        public Direction turnRight() {
+            return SOUTH;
+        }
+
+        @Override
+        public Direction turnLeft() {
+            return NORTH;
+        }
+
+        @Override
+        public int stepValueOnXAxis() {
+            return STEP_VALUE;
+        }
+
+        @Override
+        public int stepValueOnYAxis() {
+            return 0;
+        }
+    },
+    SOUTH {
+        @Override
+        public Direction turnRight() {
+            return WEST;
+        }
+
+        @Override
+        public Direction turnLeft() {
+            return EAST;
+        }
+
+        @Override
+        public int stepValueOnXAxis() {
+            return 0;
+        }
+
+        @Override
+        public int stepValueOnYAxis() {
+            return NEGATIVE_STEP_VALUE;
+        }
+    },
+    WEST {
+        @Override
+        public Direction turnRight() {
+            return NORTH;
+        }
+
+        @Override
+        public Direction turnLeft() {
+            return SOUTH;
+        }
+
+        @Override
+        public int stepValueOnXAxis() {
+            return NEGATIVE_STEP_VALUE;
+        }
+
+        @Override
+        public int stepValueOnYAxis() {
+            return 0;
+        }
+    };
+
+    private static final int NEGATIVE_STEP_VALUE = -1;
+    private static final int STEP_VALUE = 1;
+
+    public abstract Direction turnRight();
+
+    public abstract Direction turnLeft();
+
+    public abstract int stepValueOnXAxis();
+
+    public abstract int stepValueOnYAxis();
+}