mouse screencoordinates + resolution

Zoldan · Post by **Zoldan** » Tue Dec 28, 2004 5:08 pm

hey,

i've searched the forum for several hours now and didnt find anything that helps me ...
i want to do picking ... ok found sth using rays but that needs the mouse coordinates but i cant find anything on how to get them ...

and where can i get the screen resolution?

NoBrain2k · Post by **NoBrain2k** » Tue Dec 28, 2004 8:36 pm

http://www.ogre3d.org/docs/api/html/str ... State.html

theres the mouse stuff you need

don't know about the screen resolution but it should be in the API reference somewhere too.

hope that helps

EDIT:

found it!

looks like you need RenderTarget->getWidth et al. see this URL for more info
http://www.ogre3d.org/docs/api/html/cla ... arget.html

Zoldan · Post by **Zoldan** » Tue Dec 28, 2004 8:40 pm

i needed the screen coords not these "51239358" huge values ... and not relative since last frame but the 2d screen coords ...

i found a solution for the screen coords now in Real [0,1] values but i still need the resolution ...

NoBrain2k · Post by **NoBrain2k** » Tue Dec 28, 2004 8:42 pm

just edited my post, you probably didnt catch it before you replied

ComputerPhreak · Post by **ComputerPhreak** » Fri Dec 31, 2004 6:38 am

hey I'm having a similar problem. I checked the api reference but I can't seem to figure it out. I need to get the absolute position of the mouse cursor. This is the code i have to determine where on the terrain the mouse was clicked:

Code: Select all

if(mInputDevice->getMouseButton(1)  && robots &&  timeUntilNextToggle <= 0)
		{
		timeUntilNextToggle = 0.5;
		Ray updateRay;
		Ray r;
		r.setOrigin(mCamera->getPosition());
		RaySceneQuery& raySceneQuery = *(mSceneMgr->createRayQuery(r,0));
		updateRay.setOrigin(mCamera->getPosition());
		updateRay = mCamera->getCameraToViewportRay(mInputDevice->getMouseAbsX(), mInputDevice->getMouseAbsY());
		raySceneQuery.setRay(updateRay);
		RaySceneQueryResult& qryResult = raySceneQuery.execute();
		RaySceneQueryResult::iterator i = qryResult.begin();
		if (i != qryResult.end() && i->worldFragment)
			{
			std::cout << i->worldFragment->singleIntersection.x << "      "
					<< i->worldFragment->singleIntersection.z << "\n";
			Vector2 v;
			v.x = i->worldFragment->singleIntersection.x;
			v.y = i->worldFragment->singleIntersection.z;
			rbot->walk_to(v);
			}
		}

The cursor position returned is some very large number. I also tried this code but got the same results:

Code: Select all


		Ogre::MouseState ms;
		mInputDevice->getMouseState(ms);
		std::cout << "\n" << ms.Xrel << "  " << mInputDevice->getMouseAbsY();

edit:: also, is there any way to prevent the standard OS cursor from being disabled in ogre? Or do i have to track the cursor and display some sort of bitmap image as a custom cursor?

thanks

Zoldan · Post by **Zoldan** » Sat Jan 01, 2005 3:05 pm

Hey,

you can get the mouse position on the screen with a GuiContainer

Code: Select all

GuiContainer* cursor = OverlayManager::getSingleton().getCursorGui();

You can change the mouse cursor by creating your own overlay for it ...

happy new year
Zoldan