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Posts : 17
Join date : 20/09/2013
 |  Subject: D3D CROSSHAIR CODES... Fri Sep 20, 2013 5:44 pm | |
| Globals: (Top of Code) - Code:
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#define PI 3.14159265//Defining what PI is. PI is a Circle
int CenterX = GetSystemMetrics( 0 ) / 2-1;//Gets screen X resolution then cutting it in half to get the center.
int CenterY = GetSystemMetrics( 1 ) / 2-1;//Gets screen Y resolution then cutting it in half to get the center.
LPDIRECT3DDEVICE9 pDevice;
ID3DXLine *pLine; Basic Crosshair:  Notes: When you see "CenterX-15" it means CenterX Minus 15 pixels. - Code:
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//FillRGB(XPosition,YPosition,Width,Height,Color);
Function:
void FillRGB( int x, int y, int w, int h, D3DCOLOR color, IDirect3DDevice9* pDevice )
{
D3DRECT rec = { x, y, x + w, y + h };
pDevice->Clear( 1, &rec, D3DCLEAR_TARGET, color, 0, 0 );
}
//Drawing it:
FillRGB(CenterX-15, CenterY, 30, 1,Red,pDevice);//Diagonal line
FillRGB(CenterX, CenterY-15, 1, 30,Red,pDevice);//Vertical line Circle Crosshair:  - Code:
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//DrawCircle(XPosition,YPosition,Radius,numSides,Col or);
[COLOR="DarkOrange"]Function:[/COLOR]
void DrawCircle(int X, int Y, int radius, int numSides, DWORD Color)
{
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();
}
// Drawing it:
DrawCircle(CenterX,CenterY,8,8,Red); Dot Crosshair: Notes: If you adjust the size you will have to adjust the position to suit. - Code:
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Example:
DrawPoint(CenterX-10,CenterY-10, 10, 10, Green);
The size is now 10 so i -10 off the XY position to suit.
//DrawPoint(XPosition,YPosition,Width,Height,Color);
[COLOR="DarkOrange"]Function:[/COLOR]
void DrawPoint(int x, int y, int w, int h, DWORD color)
{
FillRGB((int)x, (int)y, (int)w, (int)h, color);
}
[COLOR="DarkOrange"]Drawing it:[/COLOR]
DrawPoint(CenterX-1,CenterY-1, 1, 1, Green); Cross(X) Crosshair:  Notes: XPosStart YPosStart starts the line and then XPosFinish YPosFinish is where the line will be drawn too. - Code:
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//DrawLine(XPosStart,YPosStart,XPosFinish,YPosFinish ,Width,Color);
//Function:
void DrawLine(float x, float y, float x2, float y2, float width, DWORD color)
{
D3DXVECTOR2 vLine[2];
pLine->SetWidth( width );
pLine->SetAntialias( false );
pLine->SetGLLines( true );
vLine[0].x = x;
vLine[0].y = y;
vLine[1].x = x2;
vLine[1].y = y2;
pLine->Begin();
pLine->Draw( vLine, 2, color );
pLine->End();
}
//Drawing it:
DrawLine(CenterX+10,CenterY+10,CenterX-10,CenterY-10,1,Red);
DrawLine(CenterX-10,CenterY+10,CenterX+10,CenterY-10,1,Red); | |
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