83 lines
2.6 KiB
Java
83 lines
2.6 KiB
Java
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public abstract class AbstractStrategy {
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// Перемещаемый объект
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private IMoveableObject _moveableObject;
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// Статус перемещения
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private Status _state = Status.NotInit;
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// Ширина поля
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protected int FieldWidth;
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// Высота поля
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protected int FieldHeight;
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// Статус перемещения
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public Status GetStatus() { return _state; }
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// Установка данных
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public void SetData(IMoveableObject moveableObject, int width, int height) {
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if (moveableObject == null) {
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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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FieldWidth = width;
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FieldHeight = height;
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}
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// Шаг перемещения
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public void MakeStep() {
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if (_state != Status.InProgress) {
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return;
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}
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if (IsTargetDestinaion()) {
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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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// Перемещение влево
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protected boolean MoveLeft() { return MoveTo(Direction.Left);}
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// Перемещение вправо
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protected boolean MoveRight() { return MoveTo(Direction.Right);}
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// Перемещение вверх
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protected boolean MoveUp() { return MoveTo(Direction.Up);}
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// Перемещение вниз
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protected boolean MoveDown() { return MoveTo(Direction.Down);}
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// Параметры объекта
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protected ObjectParameters GetObjectParameters() { return _moveableObject.GetObjectPosition(); }
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// Шаг объекта
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protected int GetStep() {
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if (_state != Status.InProgress) {
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return 0;
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}
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return _moveableObject.GetStep();
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}
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// Перемещение к цели
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protected abstract void MoveToTarget();
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// Достигнута ли цель
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protected abstract boolean IsTargetDestinaion();
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// Попытка перемещения в требуемом направлении
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private boolean MoveTo(Direction Direction) {
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if (_state != Status.InProgress) {
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return false;
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}
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if (_moveableObject.CheckCanMove(Direction)) {
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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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