Merge #6162

6162: Fix smooth zooming overshooting the target zoom level r=Chairn a=Robyt3

Ensure that the zoom level with smooth zooming does not exceed the target zoom level.

Closes #3747.

## Checklist

- [X] Tested the change ingame
- [ ] Provided screenshots if it is a visual change
- [ ] Tested in combination with possibly related configuration options
- [ ] Written a unit test (especially base/) or added coverage to integration test
- [ ] Considered possible null pointers and out of bounds array indexing
- [ ] Changed no physics that affect existing maps
- [ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)


Co-authored-by: Robert Müller <[email protected]>

Author: bors[bot]

src/game/client/components/camera.cpp

@@ -81,7 +81,13 @@ void CCamera::OnRender()
 		}
 		else
 		{
+			const float OldLevel = m_Zoom;
 			m_Zoom = m_ZoomSmoothing.Evaluate(ZoomProgress(Time));
+			if((OldLevel < m_ZoomSmoothingTarget && m_Zoom > m_ZoomSmoothingTarget) || (OldLevel > m_ZoomSmoothingTarget && m_Zoom < m_ZoomSmoothingTarget))
+			{
+				m_Zoom = m_ZoomSmoothingTarget;
+				m_Zooming = false;
+			}
 		}
 		m_Zoom = clamp(m_Zoom, MinZoomLevel(), MaxZoomLevel());
 	}

src/game/editor/editor.cpp

@@ -6138,6 +6138,11 @@ void CEditor::UpdateZoom()
 		else
 		{
 			m_Zoom = m_ZoomSmoothing.Evaluate(ZoomProgress(Time));
+			if((OldLevel < m_ZoomSmoothingTarget && m_Zoom > m_ZoomSmoothingTarget) || (OldLevel > m_ZoomSmoothingTarget && m_Zoom < m_ZoomSmoothingTarget))
+			{
+				m_Zoom = m_ZoomSmoothingTarget;
+				m_Zooming = false;
+			}
 		}
 		m_Zoom = clamp(m_Zoom, MinZoomLevel(), MaxZoomLevel());
 		if(g_Config.m_EdZoomTarget)