Sorry your browser is not supported!

#include "darkSDK.h"

// the main entry point for the application is this function
void DarkGDK ( void )
{
	/// Set the window size
	dbSetDisplayMode ( 800, 600, 0) ;

	int ballx=128;	// ball x pos
	int bally=64;	// ball y pos
	int ballxspeed=-4; // ball speed
	int ballyspeed=4;
	int ballwidth=32; // the width of the ball, also used for height, as it is square

	int paddlewidth=32;	/// the width of each paddle
	int paddleheight=96;	/// the height of each paddle
	int PaddleSpeed=5;	// speed with which the paddle moves


	int aX1=8, aX2=700, aY1=8, aY2=500;	// set the boundary for the ball, i.e the play area, 
										// also used for ball collision checks and initial paddle placement
	


	

	int Player1Score=0;	// Set the player scores to 0
	int Player2Score=0;


	class Paddles	/// creat a class called paddles, this will be for paddle1, paddle2 instances
	{
	public:
		int xpos;	/// this will store the current x position for each paddle
		int ypos;	/// this will store the current y position for each paddle
	};
	
	Paddles paddle1;	/// declare to new instances paddle1, paddle2 of class paddle ///
	paddle1.xpos = 32;			/// then set there corresponding xpos and ypos
	paddle1.ypos = 128;
	Paddles paddle2;
	paddle2.xpos = 128;
	paddle2.ypos = 128;


	// turn on sync rate and set maximum rate to 60 fps
	dbSyncOn   ( );
	dbSyncRate ( 60 );


	dbCLS( dbRGB(35,35,250) );  /// clear the background with a given color defined by dbRGB

		
		/// Load paddle sprite
		dbCreateAnimatedSprite( 1, "PongPaddle.png", 1,1,1);
		dbSprite( 1, paddle1.xpos, paddle1.ypos, 1 );

		// load ball sprite
		dbCreateAnimatedSprite( 2, "PongBall.png", 1,1,2);
		dbSetSprite ( 2, 1, 1 ); 
		dbSprite( 2, ballx, bally, 2 );



		dbCenterText ( 152, 32, "PONG" ) ; // draw the game title



	// our main loop
	while ( LoopGDK ( ) )
	{

		
	/// Set the ink colour and draw a box of the play area with the ink color
	dbInk ( 0,0 );					// set the ink colour to black
	dbBox ( aX1, aY1, aX2, aY2 ) ;	// draw a box in the ink color of the play area
		
		
	if ( ballxspeed < 0 )	// if ball is travelling to the left
		{

				if ( ballx> aX1 )	// if ball x position is greater then left play area, ie not past the left hand wall
				{

					if ( ballx==(paddle1.xpos+32) && (bally+ballwidth)>=(paddle1.ypos) && bally<=(paddle1.ypos+paddleheight) )	// if in contact with player1 paddle
					{ ballxspeed = -ballxspeed; }	/// then reverse the balls x direction
					else
					{ ballx+=ballxspeed; } // otherwise allow the ball to continue moving in the - x direction
			
				}
		
				else { ballx = 128; Player2Score+=1; }	// if it ball is past left hand wall, then the player has 
														// missed the ball and the other player scores a point
		}
		

		

		if ( ballxspeed > 0 )
		{
		if ( (ballx+ballwidth)<aX2 ) { ballx+=ballxspeed; } // if not on right edge of screen
		else { ballxspeed = -ballxspeed; } // if on right edge of screen reverse x direction
		}





	if ( ballyspeed < 0 )	// if ball is moving upwards
		{
	if ( (bally)>aY1 ) { bally+=ballyspeed; } // if not on top edge of screen continue moving
	else { ballyspeed = -ballyspeed; } // if on top edge of screen reverse y direction
		}


		if ( ballyspeed > 0 )	// if ball is moving downwards
		{
		if ( (bally+ballwidth)<aY2 ) { bally+=ballyspeed; } // if not on bottom edge of screen
		else { ballyspeed = -ballyspeed; } // if on bottom edge of screen reverse y direction
		}




		// check if paddle mpvement keys are being pressed if so update there y co-ords
		if ( dbUpKey() && paddle1.ypos > aY1 ) { paddle1.ypos -= PaddleSpeed; }
		if ( dbDownKey() && (paddle1.ypos+paddleheight+1) < aY2 ) { paddle1.ypos += PaddleSpeed; }
		dbSprite( 1, paddle1.xpos, paddle1.ypos, 1 );	// draw the new position of the paddles
	
		dbSprite( 2, ballx, bally, 2 );
	



		dbSync ( );	// Update the screen
	}




	// return back to windows
	return;
}