1 reply to this topic

[noatom]

I'm taling about 2D not 3D!

So if I have a quad that has a width of 200 and a height of 100.

What is the easiest way to check if a click is done inside of it?
I tried using rect structures,but the coords of the rect structure must use win32 coord system.

D3D uses a cartesian coord system...totally different from win32.

So,how does one find out where a click has taken place in D3D?

Edited by noatom, 20 October 2012 - 11:10 AM.

[Budinga]

The simplest way to do it is to just check the mounse has clicked within the bounds of the rectangle.

example: This is just a psudo example.

if (mouse.leftclick)
{

if (mouse.x > rectangle.position.x && mouse.x < (rectangle.position.x+width))
{
	 if (mouse.y < rectangle.position.y && mouse.y < (rectangle.position.y + height))
	 {
		   do something when rectangle is cliked.		
	 }
}

}

 

If you mean what i think you mean about win32 to d3d you mean you need to compensate for the clientsize verses windows size have a look at this link.

[url="http://www.directxtutorial.com/Tutorial11/A-A/AA4.aspx"]http://www.directxtutorial.com/Tutorial11/A-A/AA4.aspx[/url]

Edited by Budinga, 20 October 2012 - 02:21 PM.