DirectX Shapes

[CAFlames]

Hi there,

Here are some useful D3D (Non-Filled) Shapes I made.

In Globals:

ID3DXLine *pLine;
LPDIRECT3DDEVICE9 pDevice;
struct D3D
{
float x, y, z, rhw;
DWORD color;
};

__________________________________________________ ____________

Triangle:

void DrawTriangle( float X, float Y, float X2, float Y2,  float X3, float Y3, D3DCOLOR Color, LPDIRECT3DDEVICE9 pDevice)
{
	D3D V[3] =
{
{ (float)X, (float)Y, 0.0f, w, Color },
{ (float)X2, (float)Y2, 0.0f, w, Color },
{ (float)X3, (float)Y3, 0.0f, w, Color },
};
pDevice->DrawPrimitiveUP( D3DPT_LINELIST, 1, V, sizeof( D3D ) );
}

To use (In Present / Endscene):

DrawTriangle(  First X,  First Y,  Second X,  Second Y,  Third X,  Third Y, D3DCOLOR_ARGB(Alpha,Red,Green,Blue), pDevice);

__________________________________________________ ____________


Square:

void DrawSquare( int X, int Y, int w, int h, int thickness, D3DCOLOR Color, LPDIRECT3DDEVICE9 pDevice)
{
	D3DRECT S1 = { x, y, x + w, y+thickness };
	pDevice->Clear( 1, &S1, D3DCLEAR_TARGET, Color, 0, 0 );
        D3DRECT S2 = { x, y, x + thickness, y + h };
	pDevice->Clear( 1, &S2, D3DCLEAR_TARGET, Color, 0, 0 );
        D3DRECT S3 = { x+w, y, x + w - thickness, y + h };
	pDevice->Clear( 1, &S3, D3DCLEAR_TARGET, Color, 0, 0 );
        D3DRECT S4 = { x, y + h, x + w, y + h - thickness };
	pDevice->Clear( 1, &S4, D3DCLEAR_TARGET, Color, 0, 0 );
}

To use (In Present / Endscene):

DrawSquare( Starting X, Starting Y, Width, Height, How thick is border should be, D3DCOLOR_ARGB(Alpha, Red, Green, Blue), pDevice);

__________________________________________________ ____________


Line:

void DrawLine( float X, float Y, float X2, float Y2, int w, D3DCOLOR Color, LPDIRECT3DDEVICE9 pDevice)
{
	D3D V[2] =
{
{ (float)X, (float)Y, 0.0f, w, Color },
{ (float)X2, (float)Y2, 0.0f, w, Color },
};
pDevice->DrawPrimitiveUP( D3DPT_LINELIST, 1, V, sizeof( D3D ) );
}

To use (In Present / Endscene):

DrawLine( Starting X, Starting Y, Ending X2, Ending Y2, Line Width, D3DCOLOR_ARGB( Alpha, Red, Green, Blue ), pDevice);

__________________________________________________ ____________


Circle (You MUST Create Line FIRST):

void DrawCircle(int x, int y, int radius, int numSides, DWORD Color) //Credits to Ac1d_Burn I think
{
D3DXVECTOR2 Line[128];
float Step = PI * 2.0 / numSides;
int Count = 0;
for (float a=0; a < PI*2.0; a += Step)
{
float X1 = radius * cos(a) + x;
float Y1 = radius * sin(a) + y;
float X2 = radius * cos(a+Step) + x;
float Y2 = radius * sin(a+Step) + y;
Line[Count].x = X1;
Line[Count].y = Y1;
Line[Count+1].x = X2;
Line[Count+1].y = Y2;
Count += 2;
}
pLine->Begin();
pLine->Draw(Line,Count,Color);
pLine->End();
}

A Create-Line Method (In Present / Endscene and It is laggy and unreliable.. but it works):

if(pLine==0)
		D3DXCreateLine(pDevice,&pLine);

Then to Use the Circle:

DrawCircle(Center X, Center Y, Radius, number of sides?, D3DCOLOR_ARGB( Alpha, Red, Green, Blue));

Don't ask me about the circle too much. I have not looked over it a lot..
__________________________________________________ ____________


Solid Square:

void FilledSquare( int x, int y, int w, int h, D3DCOLOR color, IDirect3DDevice9* pDevice ) // Credits to whomever first made?
{
	D3DRECT rec = { x, y, x + w, y + h };
	pDevice->Clear( 1, &rec, D3DCLEAR_TARGET, color, 0, 0 );
}

To use (In Present / Endscene):

FilledSquare( Starting X, Starting Y, Width, Height, D3DCOLOR_ARGB( Alpha, Red, Green, Blue), pDevice );

Thanks for looking and if you have any questions or recommendations, just leave me a mention and I will try to get back to you ASAP.

[flameswor10]

I released a DrawTriangle method already

void FillARGBTriangle(int x1, int y1, int x2, int y2, int x3, int y3, D3DCOLOR color, IDirect3DDevice9 *pDevice)
{
	struct Vertex
	{
		float x,y,z,ht;
		DWORD Color;
	};

	Vertex V[4];
    V[0].Color = V[1].Color = V[2].Color = V[3].Color = color;
    V[0].z   = V[1].z   = V[2].z   = V[3].z   = 0.0f;
    V[0].ht = V[1].ht = V[2].ht = V[3].ht = 0.0f;

	V[0].x = (float)x1;
	V[0].y = (float)y1;
	V[1].x = (float)x2;
	V[1].y = (float)y2;
	V[2].x = (float)x3;
	V[2].y = (float)y3;
	V[3].x = (float)x1 + 1;
	V[3].y = (float)y1 + 1;

	pDevice->SetTexture(0, NULL);
	pDevice->SetFVF(D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX1); 
	pDevice->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP,2,V,sizeof(Vertex));
}

[topblast]

You were going so good with the draw triangle then you had to use the useless code and wrong function in DrawSquare.

[CAFlames]

You were going so good with the draw triangle then you had to use the useless code and wrong function in DrawSquare.

This method works so its not wrong

[OBrozz]

What is this pDevice->Clear? Sorry i don't code in C++. Just interested

[topblast]

This method works so its not wrong

It works, because you guys like the easy way out of everything, not knowing the logic nor the reason behind things.

LPDIRECT3DDEVICE9->Clear is used to CLEAR the back buffer, the color is just because it cant be blank, screens need a color.

If you guys read a little more about what your using or take advice from someone who knows you will learn. You guys and your hacks with the nasty coding.

Not only are you using a function for the wrong reason, your also using it more times then you Need to.

What is this pDevice->Clear? Sorry i don't code in C++. Just interested

It is a function From the "LPDIRECT3DDEVICE9" class/structure.

DirectX SDK

[pashak]

why is this in the "Hack Coding Releases"?

[whit]

hmm why are you using 4 rect's and calling Clear 4 times in drawsquare?

[_Fk127_]

What is this pDevice->Clear? Sorry i don't code in C++. Just interested

Clears the viewport or a set of rectangles in the viewport to a specified RGBA color, clears the depth buffer, and erases the stencil buffer.
-MSDN

Here is the MSDN page

[CAFlames]

hmm why are you using 4 rect's and calling Clear 4 times in drawsquare?

Why not? And for each side of the square O.o

[topblast]

Why not? And for each side of the square O.o

LOL LBAR!!!!!!!!!1..

WAIT WAIT WAIT!!!!! OH MY GODDDDDDDDDDDDDD!!!!!!!!!!!


Clear is a 2D Square already... you dont have to do any sides. all it needs is the position(x, y) Width and Height (w, h)

and the Structure RECT has 4 variables. which holds x, y, w and h. See what i mean dont know what they are doing.

[CAFlames]

LOL LBAR!!!!!!!!!1..

WAIT WAIT WAIT!!!!! OH MY GODDDDDDDDDDDDDD!!!!!!!!!!!


Clear is a 2D Square already... you dont have to do any sides. all it needs is the position(x, y) Width and Height (w, h)

and the Structure RECT has 4 variables. which holds x, y, w and h. See what i mean dont know what they are doing.

are you even looking at the thread? IT IS A HOLLOW SQUARE! As in it is only sides and no middle. so I am clearing each side around the square... not just the whole square including middle.