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Universal Mouse Movement Transformer (Natural Acceleration)
#1
Not sure how to put in real PI but this is the code for the natural mouse accelerator (no frametime required)

also, doubles might be the wrong idea (not an expert there)
Code:
/*
===========
Nicholas Steven Davila From the solar system of the Sun planet Earth (AKA: LiTHiuM/Imk0tter)
LiTHiuM's IN_MouseMove
===========
*/
#define PI 3.141592653589793

void IN_MouseMove(float frametime, usercmd_t* cmd)
{
int X, Y;
vec3_t viewangles;


gEngfuncs.GetViewAngles((float*)viewangles);


double CENTER_X = gEngfuncs.GetWindowCenterX();
double CENTER_Y = gEngfuncs.GetWindowCenterY();

// Ricochet: Don't let them move the mouse when they're in spectator mode
int iSpectator = !bCanMoveMouse();

//jjb - this disbles normal mouse control if the user is trying to
//      move the camera
if (!iMouseInUse && !g_iVisibleMouse && !iSpectator)
{
GetCursorPos(&current_pos);
IN_ResetMouse();

X = ((current_pos.x) - CENTER_X);
Y = ((current_pos.y) - CENTER_Y);



if (m_filter->value)
{
//XVAL and YVAL are the number of radians
double INNER_CIRCLE_X = (X * PI) / CENTER_X;
double INNER_CIRCLE_Y = (Y * PI) / CENTER_Y;


double OUTER_CIRCLE_X = INNER_CIRCLE_X * 2;
double OUTER_CIRCLE_Y = INNER_CIRCLE_Y * 2;

mouse_x = OUTER_CIRCLE_X * CENTER_X * sensitivity->value;
mouse_y = OUTER_CIRCLE_Y * CENTER_Y * sensitivity->value;

}
else
{
mouse_x = X * (PI * sensitivity->value);
mouse_y = Y * (PI * sensitivity->value);
}

// add mouse X/Y movement to cmd
if ((in_strafe.state & 1) || (lookstrafe->value && (in_mlook.state & 1)))
cmd->sidemove += m_side->value * mouse_x;
else
viewangles[YAW] -= m_yaw->value * mouse_x;

if (in_mlook.state & 1)
{
V_StopPitchDrift();
}

if ((in_mlook.state & 1) && !(in_strafe.state & 1))
{
viewangles[PITCH] += m_pitch->value * mouse_y;
if (viewangles[PITCH] > cl_pitchdown->value)
viewangles[PITCH] = cl_pitchdown->value;
if (viewangles[PITCH] < -cl_pitchup->value)
viewangles[PITCH] = -cl_pitchup->value;
}
else
{
if ((in_strafe.state & 1) && gEngfuncs.IsNoClipping())
{
cmd->upmove -= m_forward->value * mouse_y;
}
else
{
cmd->forwardmove -= m_forward->value * mouse_y;
}
}

// if the mouse has moved, force it to the center, so there's room to move
//if (mx || my)
//{
// IN_ResetMouse();
//}
}
gEngfuncs.SetViewAngles((float*)viewangles);
}
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#2
Code:
print("MAGIC: " + str(((X_RADIANS * pi) * 2) * SENSITIVITY))
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