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  1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using System.Data;
  5. using System.Drawing;
  6. using System.Linq;
  7. using System.Text;
  8. using System.Windows.Forms;
  9. using System.Drawing.Drawing2D;
  10. using System.Drawing.Imaging;
  11.  
  12. namespace WindowsFormsApplication1
  13. {
  14.     public partial class Form1 : Form
  15.     {
  16.         public Form1()
  17.         {
  18.             InitializeComponent();
  19.             this.Load += new EventHandler(Form1_Load);
  20.         }
  21.         const int cw = 400;
  22.         const int ch = 400;
  23.         Bitmap[] bmp = new Bitmap[2];
  24.         int screen = 0;
  25.         PictureBox pictureBox1 = new PictureBox();
  26.         Timer timer1 = new Timer();
  27.  
  28.         GraphicsPath gp = new GraphicsPath();
  29.         private void Form1_Load(object sender, EventArgs e)
  30.         {
  31.             this.ClientSize = new Size(cw, ch);
  32.             this.Controls.Add(pictureBox1);
  33.             pictureBox1.Dock = DockStyle.Fill;
  34.  
  35.  
  36.             bmp[0] = new Bitmap(cw, ch, PixelFormat.Format32bppArgb);
  37.             bmp[1] = new Bitmap(cw, ch, PixelFormat.Format32bppArgb);
  38.  
  39.             PointF[] tp = new PointF[]
  40.             {
  41.                 new PointF(0.0f,10.0f),
  42.                 new PointF(10.0f,0.0f),
  43.                 new PointF(0.0f,-10.0f),
  44.             };
  45.             gp.AddLine(0.0f, 0.0f, 20.0f, 0.0f);
  46.             gp.AddPolygon(tp);
  47.  
  48.             timer1.Interval = 1000 / 60;
  49.             timer1.Tick += new EventHandler(timer1_Tick);
  50.             timer1.Enabled = true;
  51.         }
  52.         const float vec = 5.0f;
  53.         float vx;
  54.         float vy;
  55.         int phase = 0;
  56.         Random rand = new Random();
  57.         double baseangle;
  58.         double angle = 0.0;
  59.         int count = 0;
  60.         PointF p = new PointF(200.0f, 200.0f);
  61.         private void timer1_Tick(object sender, EventArgs e)
  62.         {
  63.             switch (phase)
  64.             {
  65.                 //思考フェーズ
  66.                 case 0:
  67.                     baseangle = rand.Next(0, 90)-45;
  68.                     phase = 1;
  69.                     break;
  70.                 //回転フェーズ
  71.                 case 1:
  72.                     if (baseangle != 0)
  73.                     {
  74.                         if (baseangle > 0)
  75.                         {
  76.                             angle++;
  77.                             baseangle--;
  78.                         }
  79.                         else
  80.                         {
  81.                             angle--;
  82.                             baseangle++;
  83.                         }
  84.                     }
  85.                     else
  86.                     {
  87.                         double subangle = angle / (180 / Math.PI);
  88.                         vx = vec * (float)Math.Cos(subangle);
  89.                         vy = vec * (float)Math.Sin(subangle);
  90.                         phase = 2;
  91.                     }
  92.                     break;
  93.                 //移動フェーズ
  94.                 case 2:
  95.                     if (count < 20)
  96.                     {
  97.                         p.X += vx;
  98.                         p.Y += vy;
  99.                         count++;
  100.                         if (p.X < 20 || p.X >= cw-20 || p.Y < 20 || p.Y >= ch-20)
  101.                         {
  102.                             count = 0;
  103.                             baseangle = 180;
  104.                             phase = 1;
  105.                         }
  106.                     }
  107.                     else
  108.                     {
  109.                         count = 0;
  110.                         phase = 0;
  111.                     }
  112.                     break;
  113.                 default:
  114.                     break;
  115.             }
  116.             this.Text = phase.ToString();
  117.             //double angle = 45.0;// / (180.0 / Math.PI);
  118.             using (Graphics g = Graphics.FromImage(bmp[screen]))
  119.             {
  120.                 g.SmoothingMode = SmoothingMode.AntiAlias;
  121.                 g.FillRectangle(Brushes.White, 0, 0, cw, ch);
  122.  
  123.                 Matrix m = new Matrix();
  124.                 m.Translate(p.X, p.Y);
  125.                 m.Rotate((float)angle);
  126.                 g.Transform = m;
  127.                 g.DrawPath(Pens.Blue, gp);
  128.             }
  129.             pictureBox1.Image = bmp[screen];
  130.             screen ^= 1;
  131.         }
  132.     }
  133. }
  134.  
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https://ideone.com/IoXmN
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
public

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