kenpower

const double PI=3.14159265358979323846;
double r=100;
int sides=10;
		
glBegin(GL_LINE_STRIP);
for(int i=0;i<sides;i++){
	double angle=i*2*PI/sides;
	glVertex2d(400+r*cos(angle),300+r*sin(angle));	
}
glEnd();

kenpower

    while (App.isOpen())
    {
        // Process events
        sf::Event Event;
        while (App.pollEvent(Event))
        {
            // Close window : exit
            if (Event.type == sf::Event::Closed)
                App.close();
 

kenpower

        internal static void bounce(Shape shape1, Shape shape2)
        {
            Vector2 displacement = shape1._position - shape2._position;
            Vector2 closingspeed = shape1._velocity - shape2._velocity;
            
            //check if they are already moving apart
            if(Vector2.Dot(displacement,closingspeed)>=0){
                return;// if moving apart, do nothing

            }

kenpower

  Texture2D t; //base for the 


  protected override void LoadContent()
  {
      // create 1x1 texture for line drawing
      t = new Texture2D(GraphicsDevice, 1, 1);
      t.SetData<Color>(
          new Color[] { Color.White });// fill the texture with white
  }

kenpower

	glTranslated(550,250,0);
	glRotated(angle,0,0,1);
	glTranslated(-550,-250,0);
	glBegin(GL_LINE_LOOP);
             glVertex2d(500,200);
			glVertex2d(600,200);
			glVertex2d(600,300);
			glVertex2d(500,300);
    
    glEnd();

kenpower

////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include "stdafx.h"
#ifdef _DEBUG
#pragma comment(lib,"sfml-graphics-d.lib")
#pragma comment(lib,"sfml-audio-d.lib")
#pragma comment(lib,"sfml-system-d.lib")
#pragma comment(lib,"sfml-window-d.lib")

kenpower

/*+++++++++++++++++++++++++++++++++++++++++
Some sample code showing how to do basic vector operations with assimp
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

	// create a 3d Vector
	aiVector3D a(1.0f,2.0f,3.0f);
	aiVector3D b=a; //copy vector to another

	b.x=0.f; //assign value to x component of b
	//out put a vector

kenpower

            int vpw = graphics.GraphicsDevice.Viewport.Width;
            int vph = graphics.GraphicsDevice.Viewport.Height;

            Rectangle rect = new Rectangle(0, 0, vpw, vph);

            spriteBatch.Begin();
            
            //construct a rectangle to select an area of background to draw
            //position(upper left of) rectangle is camera position minus halh size of viewport
            Rectangle terrainRect=new Rectangle(

kenpower

//drawing enemies with a moving camera

 Vector3 cameraPos = new Vector3(-camera.Position.X, -camera.Position.Y, 0);
            Matrix cameraTrans = Matrix.CreateTranslation(cameraPos);
            spriteBatch.Begin(SpriteSortMode.Immediate, null, null, null, null, null,cameraTrans);
            foreach(Sprite s in sprites)
                s.Draw(gameTime,spriteBatch, true);
            spriteBatch.End();

kenpower

 spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.NonPremultiplied, SamplerState.LinearWrap, null, null);


            spriteBatch.Draw(clouds,
                new Rectangle(0, 0, graphics.GraphicsDevice.Viewport.Width,
                    graphics.GraphicsDevice.Viewport.Height),
                 new Rectangle((int)cloudPos.X, (int)cloudPos.Y, 300,300),
                Color.White);
            spriteBatch.End();