irrlicht's hacky fps camera

[Jacky_J]

Code: Select all

if (CursorControl && InputReceiverEnabled && camIsMe )
		{
			core::position2d<f32> cursorpos = CursorControl->getRelativePosition();

			if (!core::equals(cursorpos.X, CenterCursor.X) ||
				!core::equals(cursorpos.Y, CenterCursor.Y))
			{
				RelativeRotation.X *= -1.0f;
				RelativeRotation.Y *= -1.0f;

				RelativeRotation.Y += (0.5f - cursorpos.X) * RotateSpeed;
				RelativeRotation.X = core::clamp (	RelativeRotation.X + (0.5f - cursorpos.Y) * RotateSpeed,
													-MAX_VERTICAL_ANGLE,
													+MAX_VERTICAL_ANGLE
												);

				RelativeRotation.X *= -1.0f;
				RelativeRotation.Y *= -1.0f;

				CursorControl->setPosition(0.5f, 0.5f);
				CenterCursor = CursorControl->getRelativePosition();
			}
		}

Doesn't this seem like a huge hack in irrlicht? Seemingly, the only way to get a delta mouse position is to reset the mouse position to the center of the screen. What if i want to display the mouse cursor and get mouse deltas at the same time? In SDL for example, their event system comes with a mouse delta that is unbounded by the window. Can't irrlicht do something like that?

[hybrid]

Seems like a rather intuitive steering way, because others use this as well. You can render other "cursors", controlled by e.g. joysticks, as you wish.
Moreover, mouse deltas just use the old value and check the distance to the current one, this does not require a reset. Just use it

[Jacky_J]

Seems like a rather intuitive steering way, because others use this as well. You can render other "cursors", controlled by e.g. joysticks, as you wish.
Moreover, mouse deltas just use the old value and check the distance to the current one, this does not require a reset. Just use it

Yes, the only solution in irrlicht is to have a separate cursor.

As far as deltas, the X and Y variables inside SMouseInput are bounded by the screen, so this method doesn't work. Irrlicht just needs to add DeltaX and DeltaY to SMouseInput, much like SDL.

[rogerborg]

Eagerly awaiting your patch and sample app.

[Jacky_J]

Eagerly awaiting your patch and sample app.

Me too.

[rogerborg]

New rule: feature requests including the word "just" need to come with a patch.

[xtayxkjy]

http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=31373