Updated C example program to conform to the new client API.

C/xpcExample/xpcExample/src/main.cpp

@@ -16,38 +16,18 @@
 #define sleep(n) Sleep(n * 1000)
 #endif
 
-int main() {
+int main()
-	int i, j;
+{
-	struct xpcSocket sendfd, readfd;
+	printf("XPlaneConnect Example Script\n- Setting up Simulation\n");
-	float data[4][9] = { 0 };
-	char DREF[100] = { 0 };
-	char DREFArray[100][100];
-	char DREFArray2[100][100];
-	short DREFSizes[100];
-	float *recDATA[100];
-	float POSI[9] = { 0.0 };
-	float CTRL[5] = { 0.0 };
-	float gear;
-	char IP[16] = "127.0.0.1"; //IP Address of computer running X-Plane
-	short PORT = 49009;        //xpcPlugin Receiving port (usually 49009)
 
-	printf("xplaneconnect Example Script\n- Setting up Simulation\n");
+	// Open Socket
-
+	const char* IP = "127.0.0.1";      //IP Address of computer running X-Plane
-	for (i = 0; i < 100; i++) {
+	const unsigned short PORT = 49009; //xpcPlugin Receiving port (usually 49009)
-		recDATA[i] = (float *)malloc(40 * sizeof(float));
+	XPCSocket sock = aopenUDP(IP, PORT);
-		memset(DREFArray[i], 0, 100);
-		memset(DREFArray2[i], 0, 100);
-	}
-
-	// Open Sockets
-	readfd = openUDP(49055, IP, PORT); //Open socket for receiving
-	sendfd = openUDP(49077, IP, PORT); //Open socket for sending
-
-	// Set up Connection
-	setCONN(sendfd, 49055); // Setup so data will be received on port 49055
 
 	// Set Location/Orientation (sendPOSI)
 	// Set Up Position Array
+	float POSI[9] = { 0.0 };
 	POSI[0] = 37.524;     // Lat
 	POSI[1] = -122.06899; // Lon
 	POSI[2] = 2500;       // Alt
@@ -56,22 +36,30 @@ int main() {
 	POSI[5] = 0;          // Heading
 	POSI[6] = 1;          // Gear
 
-	sendPOSI(sendfd, 0, 7, POSI);
+	// Set position of the player aircraft
+	psendPOSI(sock, POSI, 7);
+
 	POSI[0] = 37.52465;   // Move a second aircraft a bit North of us
 	POSI[4] = 20;         // Give that aircraft a bit or right roll
-	sendPOSI(sendfd, 1, 7, POSI);
+	// Set position of a multiplayer aircraft
+	sendPOSI(sock, POSI, 7, 1);
 
 	// Set Rates (sendDATA)
-
+	float data[3][9] = { 0 };
-	for (i = 0; i < 4; i++) { // Set array to -999
+	// Initialize data values to -998 to not overwrite values.
-		for (j = 0; j < 9; j++) data[i][j] = -999;
+	for (int i = 0; i < 3; i++)
+	{
+		for (int j = 0; j < 9; j++)
+		{
+			data[i][j] = -998;
+		}
 	}
 	// Set up Data Array (first item in row is item number (example: 20=position)
 	data[0][0] = 18; // Alpha
 	data[0][1] = 0;
 	data[0][3] = 0;
 
-	data[1][0] = 3;//21;  //Velocity
+	data[1][0] = 3;  //Velocity
 	data[1][1] = 130;
 	data[1][2] = 130;
 	data[1][3] = 130;
@@ -82,21 +70,19 @@ int main() {
 	data[2][2] = 0;
 	data[2][3] = 0;
 
-	sendDATA(sendfd, data, 3); // Velocity/Alpha/PQR
+	sendDATA(sock, data, 3);
 
-	// Set CTRL
+	// Set throttle on the player aircraft using sendCTRL
+	float CTRL[5] = { 0.0 };
 	CTRL[3] = 0.8; // Throttle
-
+	psendCTRL(sock, CTRL, 5);
-	sendCTRL(sendfd, 4, CTRL);
 
 	// pauseSim
-	pauseSim(sendfd, 1); // Sending 1 to pause
+	pauseSim(sock, 1); // Sending 1 to pause	
-
+	sleep(5); // Pause for 5 seconds
-	// Pause for 5 seconds
-	sleep(5);
 
 	// Unpause
-	pauseSim(sendfd, 0); // Sending 0 to unpause
+	pauseSim(sock, 0); // Sending 0 to unpause
 	printf("- Resuming Simulation\n");
 
 	// Simulate for 10 seconds
@@ -105,28 +91,34 @@ int main() {
 	// SendDREF (Landing Gear)
 	printf("- Stowing Landing Gear\n");
 
-	strcpy(DREF, "sim/cockpit/switches/gear_handle_status"); // Gear handle data reference
+	const char* dref = "sim/cockpit/switches/gear_handle_status"; // Gear handle data reference
-	DREFSizes[0] = strlen(DREF);
+	float gear = 0; // Stow gear
-	gear = 1; // Stow gear
+	setDREF(sock, dref, &gear, 1); // Set gear to stow
-
-	sendDREF(sendfd, DREF, DREFSizes[0], &gear, 1); // Set gear to stow
 
 	// Simulate for 10 seconds
 	sleep(10);
 
 	// Check Landing gear, Pause
 	printf("- Confirming Gear Status\n");
-	strcpy(DREFArray2[0], "sim/cockpit/switches/gear_handle_status");
+	const char* drefs[2] =
-	strcpy(DREFArray2[1], "sim/operation/override/override_planepath");
+	{
-	for (i = 0; i < 2; i++) {
+		"sim/cockpit/switches/gear_handle_status",
-		DREFSizes[i] = (int)strlen(DREFArray2[i]);
+		"sim/operation/override/override_planepath"
+	};
+	float* results[2];
+	int sizes[2] = { 20, 20 };
+	for (int i = 0; i < 2; ++i)
+	{
+		results[i] = (float*)malloc(20 * sizeof(float));
 	}
-	requestDREF(sendfd, readfd, DREFArray2, DREFSizes, 2, recDATA, DREFSizes); // Request 2 values
+	getDREFs(sock, drefs, results, 2, sizes);
 
-	if (*(recDATA[0]) == 0) {
+	if (results[0][0] == 0)
+	{
 		printf("\tGear Stowed\n");
 	}
-	else {
+	else
+	{
 		printf("\tERROR: Gear Stowage unsuccessful\n");
 	}