架构道术— 一个Java程序员与数学的魅力

一个Java程序员用数学的魅力: 祝福天下所有母亲-节日快乐！！！

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 源代码：

import lombok.SneakyThrows;

import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.io.File;
import java.io.IOException;

/**
 * 母亲节的礼物
 */
public class MothersDayGift extends  JFrame {
    private static final long serialVersionUID = -1284128891908775645L;
    // 定义加载窗口大小
    public static final int GAME_WIDTH = 800;
    public static final int GAME_HEIGHT = 690;
    // 获取屏幕窗口大小
    public static final int WIDTH = Toolkit.getDefaultToolkit()
            .getScreenSize().width;
    public static final int HEIGHT = Toolkit.getDefaultToolkit()
            .getScreenSize().height;

    public MothersDayGift() throws IOException {
        // 设置窗口标题
        this.setTitle("母亲节快乐");
        // 设置窗口初始位置
        this.setLocation((WIDTH - GAME_WIDTH) / 2, (HEIGHT - GAME_HEIGHT) / 2);
        // 设置窗口大小
        this.setSize(GAME_WIDTH, GAME_HEIGHT);
        // 设置窗口关闭方式
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        // 设置窗口显示
        this.setVisible(true);
    }

    @SneakyThrows
    @Override
    public void paint(Graphics g) {
        Image OffScreen = ImageIO.read(new File("/1.png"));
        Graphics drawOffScreen = OffScreen.getGraphics();
        buildLove(drawOffScreen, g, OffScreen);
        drawOffScreen.setFont(new Font("Serief", Font.BOLD + Font.ITALIC, 30));
        drawOffScreen.drawString("祝愿天下所有母亲，节日快乐❤ ❤ ❤", 150, 50);
        g.drawImage(OffScreen, 0, 0, this);
    }

    public static void main(String[] args) throws IOException {
        MothersDayGift mothersDayGift = new MothersDayGift();
        mothersDayGift.setVisible(true);
    }

    private void buildLove(Graphics drawOffScreen, Graphics g, Image OffScreen) {
        double x, y, r;
        for (int i = 0; i < 90; i++) {
            for (int j = 0; j < 90; j++) {
                r = Math.PI / 45 * i * (1 - Math.sin(Math.PI / 45 * j)) * 18;
                x = r * Math.cos(Math.PI / 45 * j) * Math.sin(Math.PI / 45 * i)
                        + 500 / 2;
                y = -r * Math.sin(Math.PI / 45 * j) + 500 / 4;
                //设置画笔颜色
                drawOffScreen.setColor(Color.RED);
                // 绘制3D矩形
                drawOffScreen.fill3DRect((int) x, (int) y, 2, 2, Boolean.TRUE);
            }
        }
    }
}