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Let the mouse camera in stick mode reach the game's top turn speed at a camera speed above 1.

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With the mouse camera in stick mode and a camera speed above 1, the mouse could never turn faster than a full stick does at camera speed 1, however high the mouse sensitivity was set. The mouse's counts were limited to full tilt first and divided by the camera speed afterwards, so at camera speed 1.5 the most the mouse could send was two thirds of full tilt, which the game's own factor brought back to the old top speed. The division now comes before the limit (runtime/input_map.c input_mouse_stick): a slow movement turns as far as before, and a fast flick reaches full tilt, which is the game's top speed with the camera speed in it. Direct mouse mode, the default, does not use this code. A camera speed of 1 or less behaves as before.

From pull request #424. tests/mouse_stick_check.py is new here: it builds input_map.c alone and checks the deflection at each camera speed without the game.

Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
This commit is contained in:
Michael Schienbein
2026-11-10 12:48:50 -05:00
committed by chrg6
parent 86c0fe4199
commit 919aa7b2a8
10 changed files with 126 additions and 18 deletions
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docs/controls.md
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@@ -108,7 +108,7 @@ bind_Y = pad:north, key:mouse_l
## Mouse camera
Mouse motion (raw input) becomes right-stick deflection. Each presented frame takes the counts moved since the last frame, divides by the frame time and sets the deflection to `counts per second * NX2NAVI_MOUSE_SENS / 3000` of full, held for that frame, so the turn rate does not depend on the frame rate. This is not mouselook: the game's stick curve and dead zone still apply, so very slow movements do nothing and a fast flick saturates. The mouse deflection competes with the gamepad and arrow keys by the larger-deflection rule.
Mouse motion (raw input) becomes right-stick deflection. Each presented frame takes the counts moved since the last frame, divides by the frame time and sets the deflection to `counts per second * NX2NAVI_MOUSE_SENS / 3000` of full, held for that frame, so the turn rate does not depend on the frame rate. This is not mouselook: the game's stick curve and dead zone still apply, so very slow movements do nothing and a fast flick saturates. With a camera speed other than 1 (`NX2NAVI_STICK_SENS`) the deflection is divided by that factor before it is limited to full tilt: the turn for a given movement stays the same, and the fastest turn a flick reaches is the game's top speed with the factor in it. The mouse deflection competes with the gamepad and arrow keys by the larger-deflection rule.
`NX2NAVI_MOUSE_SENS` (0 to 10, default 1; higher turns faster, 0 turns the mouse camera and the cursor capture off). While the window is the foreground window the cursor is hidden and confined to the client area. It is released on focus loss, minimise, while F11 changes the window, during a size or move loop and while a text entry is open. Esc releases it by hand: the cursor shows, the mouse camera and mouse buttons stop, and the window can be moved, minimised or closed. A mouse click inside the client area captures it again; that click does not reach the game. Activating the window by a click on its title bar or border does not capture, so it can be dragged or closed right away; Alt+Tab or a click in the client area captures as before. `NX2NAVI_INPUT=none` disables the capture too.