C#实现简单气泡屏保(一)

我就是我 2023-07-24 12:00 38阅读 0赞

## 本次使用一个Timer实现 ##

**首先简单分析下气泡屏保原理**

*  对窗体进行变形(圆形)
 *  通过控制气泡与屏幕左边缘(this.Left)以及上边缘的距离(this.Top)进而使气泡运动
 *  气泡碰到屏幕四周进行反弹
 *  通过对屏幕四个边缘来分析(屏幕每个边缘都有两个方向碰撞)  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdTk5MTAyOQ_size_16_color_FFFFFF_t_70]  
    **具体实现代码如下:**

using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
    using System.Drawing.Drawing2D;//要应用GraphicsPath这个类,命名空间中必须有Drawing.Drawing2D,因为原命名空间中没有,所以需要自行添加此命名空间.
    
    namespace Test2_气泡窗口
    {
        
        public partial class Form1 : Form
        {
        
            public Form1()
            {
        
                InitializeComponent();
            }
            private void Form1_Load(object sender, EventArgs e)
            {
        
                //去掉Form1边框
                this.FormBorderStyle = FormBorderStyle.None;
                //设置Form1初始位置
                this.Location = new Point(0,0);
                //设置Form1大小
                this.Size = new Size(200, 200);
                //设置Form1背景颜色
                this.BackColor = Color.DeepPink;
                //设置label1内容(气泡内部字体)
                label1.Text = "深夜食堂";
                //设置label1字体
                label1.Font = new Font("楷体", 20);
                //确保字体显示完整,调整空间大小
                label1.AutoSize = true;
                //设置启动Timer1
                timer1.Start();
                //实例化GraphicsPath
                GraphicsPath bianxing = new GraphicsPath();
                //设置实例化后的对象为圆形-->宽高与窗体相同即为圆(窗体内切圆)
                bianxing.AddEllipse(0, 0, this.Width, this.Height);
                //应用圆形(设置与窗体关联窗口区域-->圆形与窗体关联)
                this.Region = new Region(bianxing);
                //不透明度为0.8,透明度为0.2
                this.Opacity = 0.8;
            }
            //声明变量用于小球移动
            int x = 4;
            int y = 4;
            private void timer1_Tick(object sender, EventArgs e)
            {
        
                //控制小球运动方向
                this.Left += x;
                this.Top += y;
                //碰底部
                if (this.Top + this.Height >= Screen.PrimaryScreen.WorkingArea.Height)
                {
        
                    if (x > 0 && y > 0)//气泡右下方向碰底部
                    {
        
                        this.BackColor = Color.Blue;
                        x = 4;
                        y = -4;
                    }
                    if (x < 0 && y > 0)//气泡左下方向碰底部
                    {
        
                        this.BackColor = Color.Red;
                        x = -4;
                        y = -4;
                    }
                }
                //碰右边
                if (this.Left + this.Width >= Screen.PrimaryScreen.WorkingArea.Width)
                {
        
                    if (x > 0 && y > 0)//气泡右下方向碰右边
                    {
        
                        this.BackColor = Color.DarkOrchid;
                        x = -4;
                        y = 4;
                    }
                    if (x > 0 && y < 0)//气泡右上方向碰右边
                    {
        
                        this.BackColor = Color.Yellow;
                        x = -4;
                        y = -4;
                    }
                }
                //碰顶部
                if (this.Top <= 0)
                {
        
                    if (x > 0 && y < 0)//气泡右上方向碰顶部
                    {
        
                        this.BackColor = Color.Orange;
                        x = 4;
                        y = 4;
                    }
                    if (x < 0 && y < 0)//气泡左上向碰顶部
                    {
        
                        this.BackColor = Color.DeepSkyBlue;
                        x = -4;
                        y = 4;
                    }
                }
                //碰左边
                if (this.Left <= 0)
                {
        
                    if (x < 0 && y < 0)//气泡左上方向碰左边
                    {
        
                        this.BackColor = Color.Green;
                        x = 4;
                        y = -4;
                    }
                    if (x < 0 && y > 0)//气泡左下方向碰左边
                    {
        
                        this.BackColor = Color.Purple;
                        x = 4;
                        y = 4;
                    }
                }
            }
        }
    }

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdTk5MTAyOQ_size_16_color_FFFFFF_t_70]: /images/20230528/3398ee1ab8a647d888c81f5130586420.png