[Feature]: Improved mouse support for V/MBL Walls.

[FullBleed]

Describe the Problem

I'd like to see additional mouse utility when deploying and modifying the new wall topology so we don't have to use the shift, alt, or combo keys as much.

The Solution you'd like

These suggestions are additive so people without 2-3 button mice would not be losing any functionality.

1. When dropping a vertex point with a mouse right-click on-top of an existing vertex (i.e. the vertex circles touch), have it "join" without requiring holding down the ALT key.

2. DELETE a vertex point (or viable segment) with a double left-click (currently requires holding the SHIFT key).

3. ADD a vertex point to a segment with a middle mouse-click.

Alternatives that you've considered.

No response

Additional Context

Risks: I guess accidental deletions or joins could happen. In which case, another freq for the ability to "undo" the last wall toplogy action would be pretty sweet. ;)

[kwvanderlinde]

I like the ideas here, and would go even further. I think we can do all current interactions with just left and right mouse buttons - no modifier keys - all while making wall drawing feel a lot more natural. The key is to change the drawing action from dragging with the left mouse button to clicking with the left mouse button. I.e., click to start drawing a wall, and click again to stop drawing a wall. While drawing a wall, a right click would end the current wall and immediately start a new joined wall (similar to existing behaviour).

This would be able to support (1), and could also apply whether the user want to keep drawing walls (right click) or whether they are done drawing (left click). And we can not only join up to vertices, but walls as well without modifier keys, covering (3) without needing a middle click. Relying on clicks also opens the door to a natural way of doing mass wall selections, since a left mouse drag is now free for drawing selection rectangles.

So right now I am thinking of the following actions being available with the wall tool. When not drawing a wall:

1. Left click a wall. Select the wall and unselect any other walls.
2. Shift + left click a wall. Add the wall to the selection, or remove it if it was already selected.
3. Left mouse down on empty space and drag. Draw a selection box. When left mouse button is released, select the contained walls. If shift is held, add the contained walls to the existing selection. Otherwise, replace the selection.
4. Delete key. Delete any selected walls.
5. Double left click a wall or vertex. Delete the wall or vertex.
6. Right mouse down or click on empty space. Default behaviour (e.g., pan the map).
7. Left click empty space. Start drawing a new wall.
8. Left mouse down on wall or vertex. Start dragging the wall or vertex.
9. Right click vertex. Start drawing a new wall joined to the vertex. Analogous to right click behaviour when drawing a wall (see below).
10. Right click wall. Split wall with new vertex, and start drawing a new wall joined to that vertex. Analogous to right click behaviour when drawing a wall (see below).

And while drawing a wall:.

1. Left click. Finish the current wall by placing down a vertex. If clicking on a vertex, instead finish the wall by joining it to that vertex. If clicking on a wall, split the wall with a new vertex and join to that.
2. Right click. Same as left click, but immediately start drawing a new wall connected to the end vertex of the previous wall.
3. Shift key. Or some other modifier key. Forces new vertices and disables wall-splitting in (1) and (2).

[kwvanderlinde]

I'll open a separate FR for improving wall selections, but I think all the non-selection controls I listed above are beneficial even with the very basic selections we will have in 1.17.

[Pmofmalasia]

This all seems more intuitive to me - though hard to be certain without using it. The one "missing" item I think there might be is adding a vertex to an existing wall without drawing a new section of wall (so nearly option 10). I noticed when making maps with walls I found myself drawing the whole line, then doubling back to add vertices along that line if needed for things like doors.

This may already be solved, though, if left clicking back on the same spot without drawing a line creates just that single vertex. As it stands now, a tiny wall would be created with two vertices on essentially the same spot, but with this new vertex merging would a wall even be created? If not this behavior could be covered with a quick right click -> left click.

[kwvanderlinde]

This all seems more intuitive to me - though hard to be certain without using it. The one "missing" item I think there might be is adding a vertex to an existing wall without drawing a new section of wall (so nearly option 10). I noticed when making maps with walls I found myself drawing the whole line, then doubling back to add vertices along that line if needed for things like doors.

This may already be solved, though, if left clicking back on the same spot without drawing a line creates just that single vertex. As it stands now, a tiny wall would be created with two vertices on essentially the same spot, but with this new vertex merging would a wall even be created? If not this behavior could be covered with a quick right click -> left click.

Oh, heh, that's wasn't intended. Alt+clicking a wall should just create a vertex but no new wall, but I see how I messed that one up.

But, yes, the intention is that a quick right click + left click would result in the existing wall being split, and no new wall being created. It's really the combo of (10) from the first set of actions (split a wall and start drawing a new wall), followed by (1) from the second set which, more precisely phrased, would merge the vertices of the new wall, thus removing the new wall itself and leaving behind only the new vertex at the split point.