Справочник Жаркова по проектированию и программированию искусственного интеллекта. Том 7: Программирование на Visual C# искусственного интеллекта. Издание 2. Валерий Алексеевич Жарков

Чтение книги онлайн.

СКАЧАТЬ style="font-size:15px;">      Листинг 5.1. Метод для рисования изображения.

      //The rectangle, described around the first object:

      Rectangle cheeseRectangle;

      //The rectangle, described around the second object:

      Rectangle breadRectangle;

      private void Form1_Paint(object sender, PaintEventArgs e)

      {

      //We load into objects of class System.Drawing.Image

      //the image files of the set format, added to the project

      //by means of ResourceStream:

      cheeseImage =

      new Bitmap(myAssembly.GetManifestResourceStream(

      myName_of_project + "." + "cheese.JPG"));

      breadImage =

      new Bitmap(myAssembly.GetManifestResourceStream(

      myName_of_project + "." + "bread.JPG"));

      //We initialize the rectangles, described around objects:

      cheeseRectangle = new Rectangle(cx, cy,

      cheeseImage.Width, cheeseImage.Height);

      breadRectangle = new Rectangle(bx, by,

      breadImage.Width, breadImage.Height);

      //If it is necessary, we create the new buffer:

      if (backBuffer == null)

      {

      backBuffer = new Bitmap(this.ClientSize.Width,

      this.ClientSize.Height);

      }

      //We createobject of the Graphics class from the buffer:

      using (Graphics g = Graphics.FromImage(backBuffer))

      {

      //We clear the form:

      g.Clear(Color.White);

      //We draw the image in backBuffer:

      g.DrawImage(cheeseImage, cx, cy);

      g.DrawImage(breadImage, bx, by);

      }

      //We draw the image on Form1:

      e.Graphics.DrawImage(backBuffer, 0, 0);

      //We turn on the timer:

      timer1.Enabled = true;

      } //End of the method Form1_Paint.

      А вместо приведённого выше метода updatePositions для изменения координат записываем следующий метод, дополненный кодом для обнаружения столкновения объектов.

      Листинг 5.2. Метод для изменения координат и обнаружения столкновения объектов.

      private void updatePositions()

      {

      if (goingRight)

      {

      cx += xSpeed;

      }

      else

      {

      cx -= xSpeed;

      }

      if ((cx + cheeseImage.Width) >= this.Width)

      {

      goingRight = false;

      //At the time of collision,

      //the sound signal Beep is given:

      Microsoft.VisualBasic.Interaction.Beep();

      }

      if (cx <= 0)

      {

      goingRight = true;

      //At the time of collision,

      //the sound signal Beep is given:

      Microsoft.VisualBasic.Interaction.Beep();

      }

      if (goingDown)

      {

      cy += ySpeed;

      }

      else

      {

      cy -= ySpeed;

      }

      //That cheese did not come for the button3.Location.Y:

      if ((cy + cheeseImage.Height) >= button3.Location.Y)

      {

      goingDown = false;

      //At the time of collision,

      //the sound signal Beep is given:

      Microsoft.VisualBasic.Interaction.Beep();

      }

      if (cy <= 0)

      {

      goingDown = true;

      //At the time of collision,

      //the sound signal Beep is given:

      Microsoft.VisualBasic.Interaction.Beep();

      }

      //We set to rectangles of coordinates of objects:

      cheeseRectangle.X = cx;

      cheeseRectangle.Y = cy;

      breadRectangle.X = bx;

      breadRectangle.Y = by;

      //We check the collision of objects:

      if (cheeseRectangle.IntersectsWith(breadRectangle))

      {

      //We СКАЧАТЬ