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How Does This `move()` Method Keep a Star Object Within Frame Boundaries?

Mary-Kate Olsen
Mary-Kate OlsenOriginal
2024-11-27 13:35:101057browse

How Does This `move()` Method Keep a Star Object Within Frame Boundaries?

The move method in the provided code snippet is used to update the position of a Star object. It ensures that the star stays within the bounds of the frame by checking for collisions with the frame edges.

Here's the modified move method:

public void move() {
    // Check if the star has reached the left or right edge of the frame
    if (location.x < 0 || location.x > frame.getContentPane().getWidth() - 20) {
        // Reverse the x direction of movement
        xIncr = -xIncr;
    }

    // Check if the star has reached the top or bottom edge of the frame
    if (location.y < 0 || location.y > frame.getContentPane().getHeight() - 20) {
        // Reverse the y direction of movement
        yIncr = -yIncr;
    }

    // Update the location of the star based on its speed
    translate(xIncr, yIncr);

    // Update the location of the center of the star
    location.setLocation(location.x + xIncr, location.y + yIncr);
}

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