Add Trigger & Joystick Reading.

README.md

@@ -1,4 +1,4 @@
-## Josh Stick API
+# Josh Stick API
 
 A single-header, single-namespace, single API for reading controller and joystick device input on Linux and Windows.
 
@@ -6,8 +6,14 @@ A single-header, single-namespace, single API for reading controller and joystic
 * Windows Support via XInput API
 * Linux Support via jsdev API
 
-
-## TODO
+## TODO List
 
 * Support multiple devices at once.
   * Note that XInput only supports a maximum of 4 devices.
+
+
+## Contributing
+
+## Licensing
+
+## Other Notes

main.cpp

@@ -5,9 +5,7 @@
 
 using namespace std::chrono_literals;
 
-int main()
-{
-
+int main() {
     bool success = jstick::Initialize();
 
     if (!success) {
@@ -15,7 +13,6 @@ int main()
         return -1;
     }
 
-
     if (!jstick::JoystickDetected()) {
         std::cerr << "No devices detected!" << std::endl;
         return -1;
@@ -24,6 +21,14 @@ int main()
     while (jstick::JoystickDetected()) {
         jstick::ReadEventLoop();
 
+
+        // Vibrate the joystick device by how much the thumbsticks are moved.
+        Vector2 axisL = jstick::GetLeftThumbstickAxis();
+        Vector2 axisR = jstick::GetRightThumbstickAxis();
+
+        jstick::Vibrate(axisL.Magnitude(), axisR.Magnitude());
+
+
         if (jstick::IsButtonDown(jstick::XBoxButton::Back))
             std::cout << "Back Button Pressed" << std::endl;
 
@@ -69,6 +74,7 @@ int main()
                 std::cout << "DPad Right Pressed" << std::endl;
         }
 
+
         std::this_thread::sleep_for(10ms);
     }
 

src/platform/windows/jstick_xinput.cpp

@@ -5,17 +5,22 @@
 
 #pragma comment(lib, "XInput.lib")
 
+
+// TODO: Track device state of N devices
+// TODO: Keep prev_state, so we can fire Events when buttons are pressed/releaed, etc.
+
 #define MAX_DEVICES 4
 
 bool device_exists[MAX_DEVICES];
 XINPUT_STATE cur_state[MAX_DEVICES];
 XINPUT_STATE prev_state[MAX_DEVICES];
 
-bool jstick::Initialize()
-{
-	// TODO: Anything.
-	return true;
-}
+bool jstick::Initialize() { return true; }
+
+bool jstick::Cleanup() { return true; }
+
+void jstick::JoystickServiceUpdate() { }
+
 /// XInput treats the DPad as buttons.
 bool jstick::GetDPadIsAxisOrButtons() { return false; }
 
@@ -25,7 +30,6 @@ void jstick::ReadEventLoop()
 	prev_state[0] = cur_state[0];
 
 
-
 	DWORD dwUserIndex = (DWORD)0;
 
 	XINPUT_STATE state;
@@ -69,6 +73,63 @@ bool jstick::JoystickDetected(int hwid)
 	}
 }
 
+
+Vector2 jstick::GetLeftThumbstickAxis(float deadzone, int hwid)
+{
+	XINPUT_STATE state;
+	ZeroMemory(&state, sizeof(XINPUT_STATE));
+
+	DWORD result = XInputGetState(hwid, &state);
+
+	if (result != ERROR_SUCCESS) {
+		return {0, 0};
+	}
+
+	return Vector2(state.Gamepad.sThumbLX, state.Gamepad.sThumbLY);
+}
+
+short jstick::GetLeftTrigger(int hwid)
+{
+	XINPUT_STATE state;
+	ZeroMemory(&state, sizeof(XINPUT_STATE));
+
+	DWORD result = XInputGetState(hwid, &state);
+
+	if (result != ERROR_SUCCESS) {
+		return 0;
+	}
+
+	return state.Gamepad.bLeftTrigger;
+}
+
+short jstick::GetRightTrigger(int hwid)
+{
+	XINPUT_STATE state;
+	ZeroMemory(&state, sizeof(XINPUT_STATE));
+
+	DWORD result = XInputGetState(hwid, &state);
+
+	if (result != ERROR_SUCCESS) {
+		return 0;
+	}
+
+	return state.Gamepad.bRightTrigger;
+}
+
+Vector2 jstick::GetRightThumbstickAxis(float deadzone, int hwid)
+{
+	XINPUT_STATE state;
+	ZeroMemory(&state, sizeof(XINPUT_STATE));
+
+	DWORD result = XInputGetState(hwid, &state);
+
+	if (result != ERROR_SUCCESS) {
+		return {0, 0};
+	}
+
+	return Vector2(state.Gamepad.sThumbRX, state.Gamepad.sThumbRY);
+}
+
 bool jstick::IsButtonDown(const XBoxButton& btn, int hwid)
 {
 	XINPUT_STATE state;