VodkaLaterra/src/main/java/com/lotkavolterra/Bar.java

package main.java.com.lotkavolterra;

public class Bar extends Structs {
        float x;    // top left corner x position
        float y;    // top left corner y position
        float w;    // width of button
        float h;    // height of button
        float my_fill; // Fill the box till

        Bar( float xpos, float ypos, float widthB, float heightB) {
            x = xpos;
            y = ypos;
            w = widthB;
            h = heightB;
            my_fill=x;
        }

        double get_value() {
            return my_fill/w;
        }

        boolean MouseIsOver( float mouseX, float mouseY) {
            if (mouseX > x && mouseX < (x + w) && mouseY > y && mouseY < (y + h)) {
                my_fill=mouseX - x;
                return true;
            }
            return false;
        }
}