Sorry your browser is not supported!

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

// the wizard has created a very simple 2D project that uses Dark GDK
// it can be used as a starting point in making your own 2D games

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

#define D3DFVF_2DBOX (D3DFVF_XYZ |D3DFVF_DIFFUSE)

struct VERTEX
{
	int X, Y;
	D3DCOLOR Color;
	LPDIRECT3DVERTEXBUFFER9 VertexBuffer;
	D3DVIEWPORT9 BoxViewPort;
};

int CreateSlantedBox(int X1, int Y1, int X2, int Y2);

// the main entry point for the application is this function
void DarkGDK ( void )
{
	// in this application a backdrop is loaded and then several
	// animated sprites are displayed 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 );
		
	// a call is made to this function so we can stop the GDK from
	// responding to the escape key, we can then add in some code in our
	// main loop so we can control what happens when the escape key is pressed
	dbDisableEscapeKey ( );

	// now we will set the random seed value to the timer, this will
	// help us to get more random values each time we run the program
	dbRandomize ( dbTimer ( ) );

	// we are going to display a backdrop for the scene, to do this
	// we load our image and give it an ID number of 1, this particular
	// image is of a sky at night with stars
	dbLoadImage ( "backdrop.bmp", 1 );

	// the next step is to create a sprite that uses this image, this
	// is achieved by calling dbSprite and passing in a value of 1 for the
	// sprites ID, 0 for the X coordinate, 0 for the Y coordinates and a
	// value of 1 for the image
	dbSprite ( 1, 0, 0, 1 );

	// next we will load in some animated sprites, before doing this
	// we need to adjust the image color key, by using this function we
	// can make a specific color be transparent, in our case we want this
	// to be bright pink
	dbSetImageColorKey ( 255, 0, 255 );

	// in this loop we're going to create some animated sprites, the image
	// we load contains frames of animation for an asteroid
	for ( int i = 2; i < 30; i++ )
	{
		// create an animated sprite and give it the ID number from the
		// variable i, next is the filename, now we come to how many frames
		// across and down, in our case this is 4, finally we come to the image
		// ID that the sprite will use, again we use i
		dbCreateAnimatedSprite ( i, "sprite.bmp", 4, 4, i );

		// position our sprite at a random location
		dbSprite ( i, dbRnd ( 640 ), -dbRnd ( 1500 ), i );
	}

	// now we come to our main loop, we call LoopGDK so some internal
	// work can be carried out by the GDK
	while ( LoopGDK ( ) )
	{
		
		// run a loop through all our sprites
		for ( int i = 2; i < 30; i++ )
		{
			// move the sprite down and play its animation
			// moving from frame 1 to 16 with a delay of 60 ms
			dbMoveSprite ( i, -2 );
			dbPlaySprite ( i, 1, 16, 60 );

			// check the position of the sprite, if it has gone off scren
			// then reposition it back to the top
			if ( dbSpriteY ( i ) > 500 )
				dbSprite ( i, dbRnd ( 640 ), -dbRnd ( 1500 ), i );
		}

		if(CreateSlantedBox(30,30,300,60))
		{
			MessageBoxA(NULL,"","",MB_OK);
		}

		// here we check if the escape key has been pressed, when it has
		// we will break out of the loop
		if ( dbEscapeKey ( ) )
			break;

		// here we make a call to update the contents of the screen
		dbSync ( );
	}

	// when the user presses escape the code will break out to this location
	// and we can free up any previously allocated resources
	
	// delete all the sprites
	for ( int i = 1; i < 30; i++ )
		dbDeleteSprite ( i );

	// delete the backdrop image
	dbDeleteImage ( 1 );

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

int CreateSlantedBox(int X1, int Y1, int X2, int Y2)
{
	VERTEX Vertices[4];

	Vertices[0].X		= X1;
	Vertices[0].Y		= Y1;
	Vertices[0].Color	= D3DCOLOR_XRGB(200,200,200);

	Vertices[1].X		= X2;
	Vertices[1].Y		= Y1;
	Vertices[1].Color	= D3DCOLOR_XRGB(100,100,100);

	Vertices[2].X		= X1;
	Vertices[2].Y		= Y2;
	Vertices[2].Color	= D3DCOLOR_XRGB(50,50,50);

	Vertices[3].X		= X2;
	Vertices[3].Y		= Y2;
	Vertices[3].Color	= D3DCOLOR_XRGB(25,25,25);

	HRESULT result;

	result = dbGetDirect3DDevice()->CreateVertexBuffer(
		4*sizeof(VERTEX),
		D3DUSAGE_WRITEONLY,
		D3DFVF_2DBOX,
		D3DPOOL_DEFAULT,
		&Vertices->VertexBuffer,
		NULL);
	
	

	if(FAILED(result))
	{
		MessageBoxA(g_pGlob->hWnd,"Box......not create","",MB_OK);
	}

	Vertices->BoxViewPort.X	= 0;
	Vertices->BoxViewPort.Y = 0;
	Vertices->BoxViewPort.Width	= g_pGlob->dwWindowWidth;
	Vertices->BoxViewPort.Height = g_pGlob->dwWindowHeight;
	Vertices->BoxViewPort.MinZ	= 0;
	Vertices->BoxViewPort.MaxZ	= 1;
	dbGetDirect3DDevice()->SetViewport(&Vertices->BoxViewPort);

	dbGetDirect3DDevice()->SetTexture(0,NULL);
	dbGetDirect3DDevice()->SetTexture(1,NULL);
	dbGetDirect3DDevice()->SetVertexShader(NULL);
	dbGetDirect3DDevice()->SetRenderState(D3DRS_ALPHABLENDENABLE, true);
	dbGetDirect3DDevice()->SetRenderState(D3DRS_SRCBLEND,	D3DBLEND_SRCALPHA);
	dbGetDirect3DDevice()->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
	dbGetDirect3DDevice()->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE);

	VOID *temp = NULL;

	Vertices->VertexBuffer->Lock(0,sizeof(VERTEX),(VOID**)&temp,D3DLOCK_DISCARD);
	memcpy(temp, Vertices, sizeof(Vertices));
	Vertices->VertexBuffer->Unlock();

	dbGetDirect3DDevice()->SetStreamSource(0,Vertices->VertexBuffer,0,sizeof(VERTEX));
	dbGetDirect3DDevice()->SetFVF(D3DFVF_2DBOX);
	dbGetDirect3DDevice()->DrawPrimitive(D3DPT_TRIANGLESTRIP,0,2);

	return 1;
}