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		for(i = 2; i<=23; i++)
		{
			if(dbMouseClick())
			{
			if(dbPickObject(dbMouseX(),dbMouseY(),2,i))
			{
				if(dbObjectExist(i)){dbDeleteObject(i);}
			}
			}
		}

#include "DarkGDK.h"
#include "SC_Collision.h"

#pragma comment( lib, "SC_Collision.lib" )

//Function declaration.
int MouseOverObject( int GroupID );

//Variable for object hit.
int HitObjectID;

void DarkGDK( void )
{
	dbSyncOn( ); //Set sync on so we manually handle syncing.
	dbSyncRate( 60 ); //Lock framerate at 60.
	dbSetDisplayMode( 1024, 768, 32 ); //Set resolution to 800 x 600.
	dbSetWindowOff( ); //Set fullscreen mode on.
	dbRandomize( dbTimer( ) ); //Seed random numbers.

	SC_Start( ); //Start up Sparky's collision.

	//We're gonna make 20 spheres and position them randomly, then set them
	//up for Sparky's collision.
	for ( int I = 1; I < 35; I++ )
	{
		dbMakeObjectSphere( I, 1.0f ); //Make our sphere.
		dbPositionObject( I, dbRnd( 20 ) - 10, dbRnd( 20 ) - 10, dbRnd( 20 ) + 10 ); //Position it randomly.
		SC_SetupObject( I, 1, 1 ); //Set it up: param one is object ID, two group number, and three is object type.
	}

	while ( LoopGDK( ) )
	{

		HitObjectID = MouseOverObject( 1 ); //Call our 'MouseOverFunction()' function.

		if ( HitObjectID > 0 ) //If we hit an object...
		{
			dbText( 0, 0, dbStr( HitObjectID ) ); //Tell us the ID of the object.
			dbCircle( dbObjectScreenX( HitObjectID ), dbObjectScreenY( HitObjectID ), 100 ); //Draw a circle around it.
		}

		dbSync( ); //Draw everything.
	}

	return;
}

//This function will tell us if the mouse is currently on an object.
//The only parameter is the group of the objects we want to check for.
int MouseOverObject( int GroupID )
{
	//Variables for raycast.
	float OldX, OldY, OldZ, NewX, NewY, NewZ;
	int hit;

	//Starting coordinates for our raycast will be the position of our camera.
	OldX = dbCameraPositionX( );
	OldY = dbCameraPositionY( );
	OldZ = dbCameraPositionZ( );

	//This will convert mouse coordinates to 3D coordinates.
	dbPickScreen( dbMouseX( ), dbMouseY( ), 1000.0f ); 
	NewX = OldX + dbGetPickVectorX( ); //Add the pick x value to camera position x.
	NewY = OldY + dbGetPickVectorY( ); //""
	NewZ = OldZ + dbGetPickVectorZ( ); //""

	//Cast our ray, check for a hit with any object in group 1.
	hit = SC_RayCastGroup( GroupID, OldX, OldY, OldZ, NewX, NewY, NewZ, 0 );

	return hit;
}