PointSnowFlake

/*- * Copyright 2005-2018 Diomidis Spinellis * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package gr.aueb.card; import java.awt.Graphics; import javax.swing.JPanel; /** * A class that animates a point-like character on a canvas. * The character can be e.g. a . or a * or an o. * * @author Giorgos Gousios, Diomidis Spinellis * @opt nodefillcolor white */ public class PointSnowFlake extends SnowFlake { /** The wieght of the snowflake. */ int weight; /** * Create a snowflake represented by a point-like character. * * @param panel The panel to draw the object onto * @param c The character to draw * @param w The snowflake's weight */ public PointSnowFlake(JPanel panel, char c, int w) { super(panel); displayChar = c; weight = w; } /** * Display the star onto the canvas. The star changes its 'x' coordinate, * depending on the 'y' coordinate. * * @param g The Graphics object on which we will paint */ @Override public void draw(Graphics g) { // Move the snowflake left and right switch (coordY % 3) { case 1: coordX = coordX - 5; break; case 2: coordX = coordX + 5; break; default: break; } // Move down, based on the weight coordY += (int)(Math.random() * weight); // Draw it through the superclass super.draw(g); } }