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keep wii remote shake peaks

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patchzyy
2026-10-18 19:43:54 +02:00
parent 6b4de9fbdb
commit 73feeca4b7
1 changed files with 10 additions and 14 deletions
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runtime/src/wii_remote_input.cpp
+10 -14
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@@ -144,8 +144,8 @@ struct LastAcc {
std::array<LastAcc, PAD_MAX_CONTROLLERS> g_lastAcc{};
std::array<LastAcc, PAD_MAX_CONTROLLERS> g_lastNunchukAcc{};
// Any axis beyond this is not a reading the remote's +-3 g sensor can produce.
constexpr float kMaxPlausibleRemoteG = 4.0f;
// A zeroed remote report decodes to minus its zero-g point, at least this far out on every axis.
constexpr float kZeroReportMinG = 4.0f;
// Case-sensitive substring test that tolerates a null name.
bool NameContains(const char* name, const char* needle) {
@@ -250,10 +250,11 @@ bool ReadSdlAccel(SDL_Gamepad* gamepad, SDL_SensorType sensor, float* sdl) {
// True for a sample that cannot have come from the sensor. Over Bluetooth on
// Windows the remote delivers, a few times a minute, a report whose
// accelerometer bytes are all zero; SDL decodes that as -0x200 on every axis,
// i.e. (+5.12, -5.12, -5.12) g for the remote (100 units/g) and
// (+2.56, -2.56, -2.56) g for the Nunchuk (200 units/g). Handed to the game as
// is, one such frame is a full-lock steer plus a 9 g "shake". `g` is the
// accelerometer bytes are all zero; SDL decodes that as (+a, -b, -c) g with
// a, b, c the zero-g point over the units per g of each axis: about 5 g for the
// remote (factory calibration) and exactly 2.56 g for the Nunchuk (200 units/g).
// Handed to the game as is, one such frame is a full-lock steer plus a 9 g
// "shake". Single axes past 4 g are real readings of a hard shake. `g` is the
// uncorrected SDL sample.
bool IsGlitchedSample(SDL_SensorType sensor, const float* g) {
// An exact zero vector is SDL's sensor buffer before the first report, not
@@ -261,16 +262,11 @@ bool IsGlitchedSample(SDL_SensorType sensor, const float* g) {
if (g[0] == 0.0f && g[1] == 0.0f && g[2] == 0.0f) {
return true;
}
const float zero = sensor == SDL_SENSOR_ACCEL ? 5.12f : 2.56f;
if (std::fabs(g[0] - zero) < 0.03f && std::fabs(g[1] + zero) < 0.03f && std::fabs(g[2] + zero) < 0.03f) {
return true;
}
if (sensor == SDL_SENSOR_ACCEL) {
for (int i = 0; i < 3; ++i) {
if (std::fabs(g[i]) > kMaxPlausibleRemoteG) return true;
}
return g[0] > kZeroReportMinG && g[1] < -kZeroReportMinG && g[2] < -kZeroReportMinG;
}
return false;
constexpr float zero = 2.56f;
return std::fabs(g[0] - zero) < 0.03f && std::fabs(g[1] + zero) < 0.03f && std::fabs(g[2] + zero) < 0.03f;
}
// One accelerometer sample in g, SDL's sensor frame. The remote's own axes are