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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 This version of documentation is OUTDATED, as it describes an older SDK version!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.

Unigine::Plugins::VrpnButtonDevice Class

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.
Header: #include <plugins/UnigineVrpnClient.h>

A class for the VRPN Plugin that allows receiving data about states of input device buttons.

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

VrpnButtonDevice Class

Members


void setButtonCallback ( const char * name ) #

Sets the world script callback function that receives data about input device buttons.
Notice
The callback function should be defined in the world script and receive 2 arguments - a button number and state.
Source code (UnigineScript)
void callback_func(int button,int state) {
    // function logic
}

Arguments

  • const char * name - Callback function name.

Examples

Source code (UnigineScript)
VrpnButtonDevice vrpn_button;

int init() {
	// create an instance of VrpnButtonDevice
    vrpn_button = new VrpnButtonDevice("device_name@server_addr");
	// set a callback
    vrpn_button.setButtonCallback("button_callback");
    return 1;
}

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

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

// a callback function
void button_callback(int button,int state) {
    log.message("Device button %d: %d\n",button,state);
}

const char * getButtonCallback ( ) #

Returns a name of the world script callback function that receives data about input device buttons. The callback function should be defined in the world script and receive 2 arguments - a button number and state.
Source code (UnigineScript)
void callback_func(int button,int state) {
    // function logic
}

Return value

Callback function name.

void update ( ) #

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

VrpnButtonDevice ( const char * name ) #

Constructor.

Arguments

  • const char * name - Path to the device in the format device_name@server_address.
Last update: 2021-04-29
Build: ()