Record Class GameEvent.RowsCleared

java.lang.Object
java.lang.Record
edu.uw.tcss.model.GameEvent.RowsCleared
Record Components:
count - the number of rows that were cleared (1-4 typically)
timestamp - when the event was created (milliseconds since epoch)
All Implemented Interfaces:
GameEvent
Enclosing interface:
GameEvent
public static record GameEvent.RowsCleared(int count, long timestamp) extends Record implements GameEvent
Event fired when one or more lines clear from the frozen blocks. This occurs when the current movable piece freezes into place and completes one or more full rows.

This event provides type-safe access to the number of rows that were cleared in a single action. When fired, this event is associated with property name "RowsCleared".

Usage Example: 

game.addPropertyChangeListener(evt -> {
    if (evt.getNewValue() instanceof GameEvent.RowsCleared e) {
        System.out.println(e.count() + " rows cleared!");
        updateScore(e.count());
        playAnimation(e.count());
    }
});
Version:
Winter 2025
Author:
Charles Bryan

  • Constructor Details

    • RowsCleared

      public RowsCleared(int count, long timestamp)
      Creates an instance of a RowsCleared record class.
      Parameters:
      count - the value for the count record component
      timestamp - the value for the timestamp record component

  • Method Details

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with the compare method from their corresponding wrapper classes.
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • count

      public int count()
      Returns the value of the count record component.
      Returns:
      the value of the count record component

    • timestamp

      public long timestamp()
      Returns the value of the timestamp record component.
      Specified by:
      timestamp in interface GameEvent
      Returns:
      the value of the timestamp record component