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Add: Select viewport under the cursor for gamepad scrolling

Michał Janiszewski 2025-06-15 11:48:46 +02:00
parent b2c9c803c3
commit 6b961be93b
1 changed files with 26 additions and 6 deletions
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32
src/window.cpp
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@ -3612,16 +3612,36 @@ void HandleGamepadScrolling(int stick_x, int stick_y, int max_axis_value)
return;
}
/* Apply scrolling to the main viewport */
/* Apply scrolling based on cursor position */
if (_game_mode != GM_MENU && _game_mode != GM_BOOTSTRAP) {
Window *main_window = GetMainWindow();
if (main_window != nullptr && main_window->viewport != nullptr) {
Window *target_window = nullptr;
/* Check if cursor is over a window with a viewport */
Window *w = FindWindowFromPt(_cursor.pos.x, _cursor.pos.y);
if (w != nullptr && w->viewport != nullptr) {
/* Check if cursor is actually over the viewport area within the window */
Point pt = { _cursor.pos.x - w->left, _cursor.pos.y - w->top };
if (pt.x >= w->viewport->left - w->left &&
pt.x < w->viewport->left - w->left + w->viewport->width &&
pt.y >= w->viewport->top - w->top &&
pt.y < w->viewport->top - w->top + w->viewport->height) {
target_window = w;
}
}
/* If no viewport under cursor, use main window */
if (target_window == nullptr) {
target_window = GetMainWindow();
}
/* Apply scrolling to the target viewport */
if (target_window != nullptr && target_window->viewport != nullptr) {
/* Cancel vehicle following when gamepad scrolling */
main_window->viewport->CancelFollow(*main_window);
target_window->viewport->CancelFollow(*target_window);
/* Apply the scroll using the same method as keyboard scrolling */
main_window->viewport->dest_scrollpos_x += ScaleByZoom(delta_x, main_window->viewport->zoom);
main_window->viewport->dest_scrollpos_y += ScaleByZoom(delta_y, main_window->viewport->zoom);
target_window->viewport->dest_scrollpos_x += ScaleByZoom(delta_x, target_window->viewport->zoom);
target_window->viewport->dest_scrollpos_y += ScaleByZoom(delta_y, target_window->viewport->zoom);
}
}
}