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// Dark GDK - The Game Creators - www.thegamecreators.com

// the wizard has created a very simple 3D project that uses Dark GDK
// it can be used as a starting point in making your own 3D games

// whenever using Dark GDK you must ensure you include the header file
#include "DarkGDK.h"

// the main entry point for the application is this function
void DarkGDK ( void )
{
	// in this application we are going to create some 3D objects
	// and position them on screen

	// when starting a Dark GDK program it is useful to set global
	// application properties, we begin by turning the sync rate on,
	// this means we control when the screen is updated, we also set
	// the maximum rate to 60 which means the maximum frame rate will
	// be set at 60 frames per second
	dbSyncOn   ( );
	dbSyncRate ( 60 );

	// set our random seed to a value from the timer, this will help
	// to ensure each time we run our program the random values appear
	// more random
	dbRandomize ( dbTimer ( ) );

	// make some 3D objects
	for ( int i = 1; i < 50; i++ )
	{
		// make a sphere
		dbMakeObjectSphere ( i, 1 );

		// position the object in a random location
		dbPositionObject ( i, dbRnd ( 20 ), dbRnd ( 20 ), dbRnd ( 20 ) );

		// adjust scaling
		dbScaleObject ( i, 100 + dbRnd ( 400 ), 100 + dbRnd ( 400 ), 100 + dbRnd ( 400 ) );

		// give the object a color
		dbColorObject ( i, dbRgb ( dbRnd ( 255 ), dbRnd ( 255 ), dbRnd ( 255 ) ) );

		// increase specular power
		dbSetObjectSpecularPower ( i, 255 );

		// turn off ambient lighting for this object
		dbSetObjectAmbient ( i, 0 );
	}

	// move our camera back so we can view the objects
	dbPositionCamera ( 10, 10, -20 );

	// now we come to our main loop, we call LoopGDK so some internal
	// work can be carried out by the GDK
	while ( LoopGDK ( ) )
	{
		// display some text on screen
		dbText ( 0, 0, "Use the up and down arrow keys to move the camera" );

		// move the camera forwards
		if ( dbUpKey ( ) )
			dbMoveCamera ( 1 );

		// move the camera backwards
		if ( dbDownKey ( ) )
			dbMoveCamera ( -1 );

		// rotate all of our objects
		for ( int i = 1; i < 50; i++ )
			dbRotateObject ( i, dbObjectAngleX ( i ) + 0.1, dbObjectAngleY ( i ) + 0.2, dbObjectAngleZ ( i ) + 0.3 );
		
		// here we make a call to update the contents of the screen
		dbSync ( );

		if( dbSpaceKey( ) )
		{
			dbGetImage( 100, 0, 0, dbScreenWidth( ), dbScreenHeight( ) );
			char buffer[MAX_PATH];
			ZeroMemory( &buffer, MAX_PATH );
			strcat( (char*)&buffer, "screenie_" );
			strcat( (char*)&buffer, dbStr( dbRnd( 99999 ) ) );
			strcat( (char*)&buffer, ".jpg" );
			dbSaveImage( (char*)&buffer, 100 );
		}
	}

	// before quitting delete our objects
	for ( int i = 1; i < 50; i++ )
		dbDeleteObject ( i );

	// and now everything is ready to return back to Windows
	return;
}