1 files changed, 51 insertions, 0 deletions
diff --git a/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.cpp b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.cpp
new file mode 100644
index 0000000000..29413ada2c
--- /dev/null
+++ b/Source/Core/InputCommon/ControllerEmu/ControlGroup/Force.cpp
@@ -0,0 +1,51 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "InputCommon/ControllerEmu/ControlGroup/Force.h"
+
+#include <cmath>
+#include <cstring>
+#include <memory>
+#include <string>
+
+#include "Common/Common.h"
+#include "Common/CommonTypes.h"
+#include "InputCommon/ControlReference/ControlReference.h"
+#include "InputCommon/ControllerEmu/Control/Input.h"
+#include "InputCommon/ControllerEmu/ControllerEmu.h"
+
+namespace ControllerEmu
+{
+Force::Force(const std::string& name_) : ControlGroup(name_, GROUP_TYPE_FORCE)
+{
+  memset(m_swing, 0, sizeof(m_swing));
+
+  controls.emplace_back(std::make_unique<Input>(_trans("Up")));
+  controls.emplace_back(std::make_unique<Input>(_trans("Down")));
+  controls.emplace_back(std::make_unique<Input>(_trans("Left")));
+  controls.emplace_back(std::make_unique<Input>(_trans("Right")));
+  controls.emplace_back(std::make_unique<Input>(_trans("Forward")));
+  controls.emplace_back(std::make_unique<Input>(_trans("Backward")));
+
+  numeric_settings.emplace_back(std::make_unique<NumericSetting>(_trans("Dead Zone"), 0, 0, 50));
+}
+
+void Force::GetState(ControlState* axis)
+{
+  const ControlState deadzone = numeric_settings[0]->GetValue();
+
+  for (u32 i = 0; i < 6; i += 2)
+  {
+    ControlState tmpf = 0;
+    const ControlState state =
+        controls[i + 1]->control_ref->State() - controls[i]->control_ref->State();
+    if (fabs(state) > deadzone)
+      tmpf = ((state - (deadzone * sign(state))) / (1 - deadzone));
+
+    ControlState& ax = m_swing[i >> 1];
+    *axis++ = (tmpf - ax);
+    ax = tmpf;
+  }
+}
+}  // namespace ControllerEmu