92 lines
2.1 KiB
Java
92 lines
2.1 KiB
Java
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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protected int GetFieldWidth() {
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return fieldWidth;
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}
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private int fieldHeight;
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protected int GetFieldHeight() {
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return fieldHeight;
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}
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public Status GetStatus() {
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return state;
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}
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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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this.moveableObject = moveableObject;
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fieldWidth = width;
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fieldHeight = height;
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}
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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 (isTargetDestination()) {
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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() {
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return MoveTo(DirectionType.Left);
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}
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protected boolean MoveRight() {
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return MoveTo(DirectionType.Right);
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}
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protected boolean MoveUp() {
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return MoveTo(DirectionType.Up);
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}
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protected boolean MoveDown() {
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return MoveTo(DirectionType.Down);
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}
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protected ObjectParameters GetObjectParameters() {
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if (moveableObject == null) {
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return null;
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}
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return moveableObject.GetObjectPosition();
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}
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protected Integer GetStep() {
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if (state != Status.InProgress) {
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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(DirectionType directionType) {
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if (state != Status.InProgress) {
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return false;
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}
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if (moveableObject == null) {
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return false;
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}
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if (moveableObject.CheckCanMove(directionType)) {
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moveableObject.MoveObject(directionType);
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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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