Inverse Kinematics: User Input

[starphys]

The control system (in Target.tsx) needs to be updated to only accept input within the correct component, and to scale the x/y coordinates proportionally to that component instead of to the whole window. Right now clicking on the center of the screen is the only way to send input at the center of the model, even when it is not actually centered on the screen. This is a nice React task that doesn't strictly require other libraries, so a good way to improve React fundamentals.
We also need to decide on a way to control z input, which might be click in the window (just like x and y) or might be connected to the scroll wheel or a UI element. There are disadvantages to each approach, so we should try a few and see what feels most natural.
Additionally, it would be great to have an in-world cursor for the targeting system, that is a different color from the target once its placed. This will let us see where we're sending the hand to before we actually start sending angles for it.
Finally, we need to disconnect the click-to-set-target from the click-to-rotate-camera controls. We might be able to bind one or the other to ctrl+click instead, or take any other approach that allows us to control them independently.

[william-green]

I got the branch setup and I replicated the issue. I can take the task.

[william-green]

Completed!

[starphys]

This still needs to be tested on someone else's machine. Additionally, there are several subtasks on here that haven't been started.

[starphys]

• Ignore clicks that are not on the IK pane.
• Adjust input scaling to match the pane. (For example, clicking on the middle while the plane of the screen is perpendicular to the xy plane should place the cube directly in the center of the model.)
• Add mechanics for controlling the z input (currently only take input in xy plane).
• Cursor for targeting system to show where the target will be set to on click.
• Modify event listeners to separate click-to-set-target and click-to-drag-camera.

[Viha123]

I have modified the event listeners so that now it is left click drag to rotate camera and right click to set target. I can change the specifics later if required.