Class Direction

engine/Poseidon/Input/InputProcessingSdl.cpp:373–377

        d = sqrtf(1.0f + x2 / y2);
    else if (x2 > 0.0f)
        d = sqrtf(1.0f + y2 / x2);
    x = fmaxf(-1.0f, fminf(1.0f, x * d));
    y = fmaxf(-1.0f, fminf(1.0f, y * d));
}

static inline float saturatef(float v, float lo, float hi)
{
    return v < lo ? lo : v > hi ? hi : v;