Crosshair help

[bal]

Code: Select all

 driver->draw2DLine(irr::core::position2d(x,y,z), irr::core::position2d(x,y,z));

That's API code, you got to fill in the right numbers

[Gameswhiz]

But here is the thing.I get an error error C2955: 'position2d' : use of class template requires template argument list whenever I try that code driver->draw2DLine(position2d(320,240,0), position2d(330,250,0)); So what could be the problem?

[Tyn]

The fact that you haven't designated a type. To use an integer:

core::position2d<int> pos

It can be misleading that you need to use this since there is:

core::vector3df pos

But this is just a shortcut for

core::vector3d<core::f32> pos

[Gameswhiz]

Thanks I got it to compile and run now.I guess I should just fiddle with the numbers untill I can see the lines on the screen or are they meant to be there already?

[arras]

Hi, I got the crosshair in the middle using draw2DRectangle but how do I resize the rectangle?

It is rendered every loop so just change its size. Define some wariables and pass them to function

like:

Code: Select all

int x1, x2, y1 ,y2;

if(something)
{
   x1 = 300;
   x2 = 500;
   y1 = 299;
   y2 = 301;
}

if(something else)
{
   x1 = 100;
   x2 = 700;
   y1 = 299;
   y2 = 301;
}

driver->draw2DRectangle( irr::video::SColor(100,255,100,100),  irr::core::rect<s32>(x1,y1,x2,y2) );