Draw D3D Crosshair

[NeoIII 5137]

void DoCrosshair( LPDIRECT3DDEVICE8 pDevice )
{
D3DCOLOR xcolor = D3DCOLOR_ARGB( 255, 0, 0, 255 );

int size = 13, strong = 1;
int iCenterX = Ge*Zensored*temMetrics( 0 ) / 2;
int iCenterY = Ge*Zensored*temMetrics( 1 ) / 2;
if( iCenterX < 20 && iCenterY < 20 )
{
	iCenterX = ( Ge*Zensored*temMetrics( 0 ) / 2 );
	iCenterY = ( Ge*Zensored*temMetrics( 1 ) / 2 );
}
D3DRECT rec2 = { iCenterX- size, iCenterY, iCenterX+ size, iCenterY+ strong};
D3DRECT rec3 = { iCenterX, iCenterY- size, iCenterX+ strong,iCenterY+ size};
pDevice->Clear(1, &rec2, D3DCLEAR_TARGET, xcolor, 0,  0);
pDevice->Clear(1, &rec3, D3DCLEAR_TARGET, xcolor, 0,  0);
}

[StRyDeR 0]

I have been trying to make a circle xhair, do you know how i can do this without making a few hundred rects?

 

thanks in advance.

[NeoIII 5137]

with a few 100 rects ^^ ill post some code later after im finish with playing crysis

[NeoIII 5137]

by gamedev.net

#define D3DFVF_TL (D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX1)

struct D3DTLVERTEX
{
float fX;
float fY;
float fZ;
float fRHW;
D3DCOLOR Color;
float fU;
float fV;
};

//-----------------------------------------------------------------------------------
//CreateD3DTLVERTEX--Populate a D3DTLVERTEX structure
//-----------------------------------------------------------------------------------
D3DTLVERTEX CreateD3DTLVERTEX (float X, float Y, float Z, float RHW, 
														 D3DCOLOR color, float U, float V)
{
D3DTLVERTEX v;

v.fX = X;
v.fY = Y;
v.fZ = Z;
v.fRHW = RHW;
v.Color = color;
v.fU = U;
v.fV = V;

return v;
}//CreateD3DTLVERTEX

void Draw2DCircle(POINT pt, float radius, D3DCOLOR color, LPDIRECT3DDEVICE9 dev)
{
const int NUMPOINTS = 24;
	const float PI = 3.14159;

D3DTLVERTEX Circle[NUMPOINTS + 1];
int i;
float X;
float Y;
float Theta;
float WedgeAngle;	//Size of angle between two points on the circle (single wedge)

//Precompute WedgeAngle
WedgeAngle = (float)((2*PI) / NUMPOINTS);

//Set up vertices for a circle
//Used <= in the for statement to ensure last point meets first point (closed circle)
for(i=0; i<=NUMPOINTS; i++)
{
	//Calculate theta for this vertex
	Theta = i * WedgeAngle;

	//Compute X and Y locations
	X = (float)(pt.x + radius * cos(Theta));
	Y = (float)(pt.y - radius * sin(Theta));

	Circle[i] = CreateD3DTLVERTEX(X, Y, 0.0f, 1.0f, color, 0.0f, 0.0f);
}

//Now draw the circle
	dev->SetFVF(D3DFVF_TL);
dev->SetTexture(0, NULL);
dev->DrawPrimitiveUP(D3DPT_LINESTRIP, NUMPOINTS, &Circle[0], sizeof(Circle[0]));

}//Draw2DCircle

[Kvn'X 222]

WoW nice love these tuts :9

[zeeeeeeek1 74]

kann man nich nen vb8/vb6 tut machen -.-?^^

 

ich downloade mir jetz gerade c++

[NeoIII 5137]

sicher kann man aber ich kann kein vb^^ ich könnte höchstens paar msn hacks in vb machen aber das wars auch schon

[zeeeeeeek1 74]

Ich habe gedacht man braucht vb um c++ oder so zu checken ?

 

ich lösche mein vb ma^^

Edited September 15, 2008 by zeeeeeeek1

[soηηy 2]

Vb <3

[StRyDeR 0]

Thank you very much! Oh and blame Gellin for tellin me to draw 100 rects (1 per pixel )

 

I will enjoy my circles

 

Edit: Just notice this is for Direct9 device. I tried porting it to d3d8 but there obviously isn't an API for circles.

Edited September 16, 2008 by StRyDeR

[PhoenixRaider 1]

Thanx for these.

Gonna try it right now.

[alce92 0]

by gamedev.net

#define D3DFVF_TL (D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX1)

struct D3DTLVERTEX
{
float fX;
float fY;
float fZ;
float fRHW;
D3DCOLOR Color;
float fU;
float fV;
};

//-----------------------------------------------------------------------------------
//CreateD3DTLVERTEX--Populate a D3DTLVERTEX structure
//-----------------------------------------------------------------------------------
D3DTLVERTEX CreateD3DTLVERTEX (float X, float Y, float Z, float RHW, 
														 D3DCOLOR color, float U, float V)
{
D3DTLVERTEX v;

v.fX = X;
v.fY = Y;
v.fZ = Z;
v.fRHW = RHW;
v.Color = color;
v.fU = U;
v.fV = V;

return v;
}//CreateD3DTLVERTEX

void Draw2DCircle(POINT pt, float radius, D3DCOLOR color, LPDIRECT3DDEVICE9 dev)
{
const int NUMPOINTS = 24;
	const float PI = 3.14159;

D3DTLVERTEX Circle[NUMPOINTS + 1];
int i;
float X;
float Y;
float Theta;
float WedgeAngle;	//Size of angle between two points on the circle (single wedge)

//Precompute WedgeAngle
WedgeAngle = (float)((2*PI) / NUMPOINTS);

//Set up vertices for a circle
//Used <= in the for statement to ensure last point meets first point (closed circle)
for(i=0; i<=NUMPOINTS; i++)
{
	//Calculate theta for this vertex
	Theta = i * WedgeAngle;

	//Compute X and Y locations
	X = (float)(pt.x + radius * cos(Theta));
	Y = (float)(pt.y - radius * sin(Theta));

	Circle[i] = CreateD3DTLVERTEX(X, Y, 0.0f, 1.0f, color, 0.0f, 0.0f);
}

//Now draw the circle
	dev->SetFVF(D3DFVF_TL);
dev->SetTexture(0, NULL);
dev->DrawPrimitiveUP(D3DPT_LINESTRIP, NUMPOINTS, &Circle[0], sizeof(Circle[0]));

}//Draw2DCircle

 

i read it.......but what is the section of d3d8dev.cpp where i put the code??

 

ex EndScene, BeginScene.........

[a1fahrrad 0]

This Code at the Top

 

This in Endscene or Beginscene:

Draw2DCircle(bla, bla, bla....)

[xxka1saxx 0]

Ich kapier nich wo ich das alles reinmachen muss....

alles in eine Datei oder was??

[a1fahrrad 0]

D3D Starterkit -> d3d8dev.cpp

[xxka1saxx 0]

lool i posted this on 23 november??

wth a n00b...xDD

now i understand much of this stuff...xDD