70 lines
2.0 KiB
Java
70 lines
2.0 KiB
Java
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public abstract class AbstractStrategy {
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private IMoveableObject _moveableObject;
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private Status _state = Status.NotInit;
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private int FieldWidth;
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private void SetFieldWidth(int width) {FieldWidth = width;}
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protected int GetFieldWidth() {return FieldWidth;}
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private int FieldHeight;
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private void SetFieldHeight(int height) {FieldHeight = height;}
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protected int GetFieldHeight() {return FieldHeight;}
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public Status GetStatus() {return _state;}
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public void SetData(IMoveableObject moveableObject, int width, int height)
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{
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if (moveableObject == null)
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{
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_state = Status.NotInit;
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return;
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}
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_state = Status.InProgress;
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_moveableObject = moveableObject;
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SetFieldWidth(width);
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SetFieldHeight(height);
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}
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public void MakeStep()
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{
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if(_state != Status.InProgress)
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return;
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if (IsTargetDestination())
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{
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_state = Status.Finish;
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return;
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}
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MoveToTarget();
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}
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protected boolean MoveLeft() {return MoveTo(Direction.Left); }
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protected boolean MoveRight() {return MoveTo(Direction.Right); }
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protected boolean MoveUp() {return MoveTo(Direction.Up); }
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protected boolean MoveDown() {return MoveTo(Direction.Down); }
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protected ObjectParameters GetObjectParameters() {return _moveableObject.GetObjectParameters(); }
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protected Integer GetStep()
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{
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if (_state != Status.InProgress)
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{
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return null;
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}
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return _moveableObject.GetStep();
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}
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protected abstract void MoveToTarget();
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protected abstract boolean IsTargetDestination();
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private boolean MoveTo(Direction direction)
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{
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if (_state != Status.InProgress)
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return false;
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if (!_moveableObject.CheckCanMove(direction))
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{
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_moveableObject.MoveObject(direction);
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return true;
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}
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return false;
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}
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}
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