public class MoveToCenter extends AbstractStrategy{ protected boolean IsTargetDestinaion() { var objParams = GetObjectParameters(); if (objParams == null) { return false; } return objParams.ObjectMiddleHorizontal <= FieldWidth / 2 && objParams.ObjectMiddleHorizontal + GetStep() >= FieldWidth / 2 && objParams.ObjectMiddleVertical <= FieldHeight / 2 && objParams.ObjectMiddleVertical + GetStep() >= FieldHeight / 2; } protected void MoveToTarget() { var objParams = GetObjectParameters(); if (objParams == null) { return; } var diffX = objParams.ObjectMiddleHorizontal - FieldWidth / 2; if (Math.abs(diffX) > GetStep()) { if (diffX > 0) { MoveLeft(); } else { MoveRight(); } } var diffY = objParams.ObjectMiddleVertical - FieldHeight / 2; if (Math.abs(diffY) > GetStep()) { if (diffY > 0) { MoveUp(); } else { MoveDown(); } } } }