proto/mouse: guard against +181 -> -179 wraparound

Always use the shorter way around.

This also adds a sensitivity param.

Issue: #370

1 files changed, 91 insertions, 32 deletions

diff --git a/proto-mouse/ftnoir_protocol_mouse.cpp b/proto-mouse/ftnoir_protocol_mouse.cpp
index c0a0a868..73616785 100644
--- a/proto-mouse/ftnoir_protocol_mouse.cpp
+++ b/proto-mouse/ftnoir_protocol_mouse.cpp
@@ -6,48 +6,107 @@
  */
 #include "ftnoir_protocol_mouse.h"
 #include "opentrack/plugin-api.hpp"
+#include <cmath>
+#include <algorithm>
 #include <windows.h>
 
 #ifndef MOUSEEVENTF_MOVE_NOCOALESCE
 #   define MOUSEEVENTF_MOVE_NOCOALESCE 0x2000
 #endif
 
-void FTNoIR_Protocol::pose(const double *headpose ) {
-    RECT desktop;
-    const HWND hDesktop = GetDesktopWindow();
-    if (hDesktop != NULL && GetWindowRect(hDesktop, &desktop)) {
-        // XXX TODO remove axis selector, use mapping window's
-        // axis selection. Mention in UI axis used. -sh 20140920
-        int axis_x = s.Mouse_X;
-        int axis_y = s.Mouse_Y;
-        
-        int mouse_x = 0, mouse_y = 0;
-        
-        if (axis_x > 0 && axis_x <= 6)
-            mouse_x = headpose[axis_x-1] / (axis_x <= 3 ? 100 : 180) * 10 * desktop.right/2;
-    
-        if (axis_y > 0 && axis_y <= 6)
-            mouse_y = headpose[axis_y-1] / (axis_y <= 3 ? 100 : 180) * 10 * desktop.bottom/2;
-        
-        MOUSEINPUT mi;
-        mi.dx = mouse_x - last_x;
-        mi.dy = mouse_y - last_y;
-        mi.mouseData = 0;
-        mi.dwFlags = MOUSEEVENTF_MOVE | MOUSEEVENTF_MOVE_NOCOALESCE;
-        mi.time = 0;
-        mi.dwExtraInfo = 0;
-        INPUT input;
-        input.type = INPUT_MOUSE;
-        input.mi = mi;
-        (void) SendInput(1, &input, sizeof(INPUT));
-        
-        last_x = mouse_x;
-        last_y = mouse_y;
+void FTNoIR_Protocol::pose(const double *headpose)
+{
+    // XXX TODO remove axis selector, use mapping window's
+    // axis selection. Mention in UI axis used. -sh 20140920
+    const int axis_x = s.Mouse_X - 1;
+    const int axis_y = s.Mouse_Y - 1;
+
+    int mouse_x = 0, mouse_y = 0;
+
+    static constexpr double invert[] =
+    {
+        1.,  1., 1.,
+        1., -1., 1.
+    };
+
+    if (axis_x >= 0 && axis_x < 6)
+    {
+        mouse_x = get_value(headpose[axis_x] * invert[axis_x],
+                            last_pos_x,
+                            last_x,
+                            axis_x >= 3,
+                            static_cast<slider_value>(s.sensitivity_x));
+    }
+
+    if (axis_y >= 0 && axis_y < 6)
+        mouse_y = get_value(headpose[axis_y] * invert[axis_y],
+                            last_pos_y,
+                            last_y,
+                            axis_y >= 3,
+                            static_cast<slider_value>(s.sensitivity_y));
+
+    MOUSEINPUT mi;
+    mi.dx = mouse_x;
+    mi.dy = mouse_y;
+    mi.mouseData = 0;
+    mi.dwFlags = MOUSEEVENTF_MOVE | MOUSEEVENTF_MOVE_NOCOALESCE;
+    mi.time = 0;
+    mi.dwExtraInfo = 0;
+    INPUT input;
+    input.type = INPUT_MOUSE;
+    input.mi = mi;
+    (void) SendInput(1, &input, sizeof(INPUT));
+
+    last_x = mouse_x;
+    last_y = mouse_y;
+}
+
+QString FTNoIR_Protocol::game_name()
+{
+    return "Mouse tracker";
+}
+
+double FTNoIR_Protocol::get_rotation(double val, double last_pos)
+{
+    using std::fmod;
+    using std::fabs;
+    using std::copysign;
+    using std::min;
+
+    const double x_1 = val - last_pos;
+
+    if (x_1 > 180)
+        return 360 - x_1;
+    else if (x_1 < -180)
+        return 360 + x_1;
+    else
+        return x_1;
+}
+
+int FTNoIR_Protocol::get_value(double val, double& last_pos, int& last_px, bool is_rotation, double sensitivity)
+{
+    static constexpr double c = 1e-1;
+
+    if (is_rotation)
+    {
+        const double rot_delta = get_rotation(val, last_pos);
+
+        last_pos = val;
+        last_px = int(rot_delta * c * sensitivity);
     }
+    else
+    {
+        val -= last_pos;
+
+        last_pos = val;
+        last_px = int(val * c * sensitivity / 100 - last_px);
+    }
+
+    return last_px;
 }
 
 bool FTNoIR_Protocol::correct()
-{   
+{
     return true;
 }