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Warning! This version of documentation is OUTDATED, as it describes an older SDK version! Please switch to the documentation for the latest SDK version.
Warning! This version of documentation describes an old SDK version which is no longer supported! Please upgrade to the latest SDK version.

VrpnAnalogDevice Class

Warning
The scope of applications for UnigineScript is limited to implementing materials-related logic (material expressions, scriptable materials, brush materials). Do not use UnigineScript as a language for application logic, please consider C#/C++ instead, as these APIs are the preferred ones. Availability of new Engine features in UnigineScript (beyond its scope of applications) is not guaranteed, as the current level of support assumes only fixing critical issues.
Warning
The functionality described in this article is not available in the Community SDK edition.
You should upgrade to Sim SDK edition to use it.

A class for the VRPN Plugin that allows receiving data about input devices sticks (for example, game-pad sticks).

See Also#

  • Article on VRPN Plugin
  • A set of UnigineScript API samples located in the <UnigineSDK>/data/samples/plugins/ folder:
    • vrpn_client_00
    • vrpn_client_01

VrpnAnalogDevice Class

Members


void setAnalogCallback ( string name ) #

Sets the world script callback function that receives data about input device sticks.
Notice
The callback function should be defined in the world script and receive 1 argument - an instance of the VrpnAnalogDevice class.
Source code (UnigineScript)
void callback_func(VrpnAnalogDevice device) {
    // function logic
}

Arguments

  • string name - Callback function name.

Examples

Source code (UnigineScript)
VrpnAnalogDevice vrpn_analog;

int init() {
	// create an instance of VrpnAnalogDevice
    vrpn_analog = new VrpnAnalogDevice("device_name@server_addr");
	// set a callback
    vrpn_analog.setAnalogCallback("analog_callback");
}

int shutdown() {
    delete vrpn_analog;
    return 1;
}

int update() {
    vrpn_analog.update();
    return 1;
}

// a callback function
void analog_callback(VrpnAnalogDevice device) {
    forloop(int i = 0; device.getNumChannels()) {
        log.message("Device analog channel %d: %lf\n",i,device.getChannel(i));
    }
}

string getAnalogCallback ( ) #

Returns a name of the world script callback function that receives data about input device sticks. The callback function should be defined in the world script and receive 1 argument - an instance of the VrpnAnalogDevice class.
Source code (UnigineScript)
void callback_func(VrpnAnalogDevice device) {
    // function logic
}

Return value

Callback function name.

double getChannel ( int channel ) #

Returns data received by the analog stick with the given number.
Notice
If the given stick haven't received data, the engine assertion will occur.

Arguments

  • int channel - Analog stick number in range [0;number_of_sticks - 1].

Return value

Returns data received by the analog stick with the given number.

int getNumChannels ( ) #

Returns the number of analog sticks that have received data.

Return value

The number of analog sticks that have received data. If no sticks have received data, 0 will be returned.

void update ( ) #

Updates the internal state of the device and receives input data.
Notice
This function should be called each frame.

VrpnAnalogDevice ( string name ) #

Constructor.

Arguments

  • string name - Path to the device in the format device_name@server_address.
Last update: 2021-12-13
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