Airwarfare.com

by **3./JG51_Specter** on Mon May 22, 2006 1:45 am

I'm in the beginning stages of constructing my own simpit. I was concerned when I kept reading that devicelink was useless online. I wanted to avoid constructing multiple interfaces for off and online. So not being satisfied with word of mouth I endeavered to find out how useless it truely is. I wrote a quick and dirty c program to query the (4) and (6) parameters.

This is from an online dogfight mission, I'm in an he-111 sitting on the ramp with the engines running. Some of the variables may say they are inaccessible, i.e. supercharger prev, but its at the 1st stage. So some common sense needs to be taken into account when looking at the output.

The verdict, not to bad actually. It seems the only functionality you loose is the instrumentation. Thought others might be interested so here's some the output.

The numbers and names follow the devicelink.txt file in the root dir.
odd - set, even - get

Code: Select all: Version(2) - True Accessible Get(4) - True Accessible Set(6) - True Camera Turn Angles(11) - True Time of Day(20) - True Aircraft Model(22) - True Cockpit Quantity(24) - True Current Cockpit(26) - True Engine Quantity(28) - False Airspeed Indicator(30) - False Variometer(32) - False Slip(34) - False Turn(36) - False Angular Speed(38) - False Altimeter(40) - False Azimuth(42) - False Beacon Azimuth(44) - False Roll(46) - False Pitch(48) - False Fuel(50) - False G Load(52) - False Shake Level(54) - False Left Gear Position(56) - False Right Gear Position(58) - False Center Gear Position(60) - False Magneto(62) - False Tachometer(64) - False Manifold Pressure(66) - False Intake Oil Temperature(68) - False Outlet Oil Temperature(70) - False Water Temperature(72) - False Cylinder Temperature(74) - False Throttle(80) - True Throttle(81) - True Flaps(82) - True Flaps(83) - True Aileron(84) - True Aileron(85) - True Elevator(86) - True Elevator(87) - True Rudder(88) - True Rudder(89) - True Brakes(90) - True Brakes(91) - True Prop Pitch(92) - True Prop Pitch(93) - True Aileron Trim(94) - True Aileron Trim(95) - True Elevator Trim(96) - True Elevator Trim(97) - True Rudder Trim(98) - True Rudder Trim(99) - True Stabilizer(100) - True Stabilizer(101) - True Ignition(103) - True Boost (WEP)(104) - True Boost (WEP)(105) - False Magneto Next(106) - True Magneto Next(107) - True Magneto Prev(108) - True Magneto Prev(109) - True Supercharger Next(110) - True Supercharger Next(111) - True Supercharger Prev(112) - True Supercharger Prev(113) - True Select All Engines(115) - True Unselect All Engines(117) - True Select Left Engines(119) - True Select Right Engines(121) - True Select Engine #1(123) - True Select Engine #2(125) - True Select Engine #3(127) - True Select Engine #4(129) - True Select Engine #5(131) - True Select Engine #6(133) - True Select Engine #7(135) - True Select Engine #8(137) - True Toggle All Engines(139) - True Toggle Left Engines(141) - True Toggle Right Engines(143) - True Toggle Engine #1(145) - True Toggle Engine #2(147) - True Toggle Engine #3(149) - True Toggle Engine #4(151) - True Toggle Engine #5(153) - True Toggle Engine #6(155) - True Toggle Engine #7(157) - True Toggle Engine #8(159) - True Fire Extinguisher(161) - False Feather Prop(162) - True Feather Prop(163) - True Gear Position(164) - True Toggle Gear(165) - False Raise Gear Manually(167) - False Lower Gear Manually(169) - False Cowl/Armor Flaps(171) - True Airbrake(172) - True Airbrake(173) - False Lock Tail Wheel(174) - True Lock Tail Wheel(175) - True Jettison Drop Tanks(177) - True Attach/Detach Aircraft(179) - False Weapon 1(180) - True Weapon 2(181) - True Weapon 2(182) - True Weapon 2(183) - True Weapon 3(184) - True Weapon 3(185) - True Weapon 4(186) - True Weapon 4(187) - True Weapon 1+2(188) - True Weapon 1+2(189) - True Toggle Gun Pods(190) - True Toggle Gun Pods(191) - False Toggle Sight Mode(193) - True Increase Sight Distance(195) - True Decrease Sight Distance(197) - True Adjust Sight Right(199) - True Adjust Sight Left(201) - True Increase Sight Altitude(203) - True Decrease Sight Altitude(205) - True Increase Sight Velocity(207) - True Decrease Sight Velocity(209) - True Canopy(212) - True Canopy(213) - False Arrestor Hook(214) - True Arrestor Hook(215) - False Chocks(216) - True Chocks(217) - False Gunner Fire(220) - True Gunner Fire(221) - False Gunner Move(223) - False Gunner Position(301) - True Jump to Cockpit #1 (Pilot)(303) - True Jump to Cockpit #2(305) - True Jump to Cockpit #3(307) - True Jump to Cockpit #4(309) - True Jump to Cockpit #5(311) - True Jump to Cockpit #6(313) - True Jump to Cockpit #7(315) - True Jump to Cockpit #8(317) - True Jump to Cockpit #9(319) - True Jump to Cockpit #10(321) - True FOV 90(323) - True FOV 85(325) - True FOV 80(327) - True FOV 75(329) - True FOV 70(331) - True FOV 65(333) - True FOV 60(335) - True FOV 55(337) - True FOV 45(341) - True FOV 40(343) - True FOV 35(345) - True FOV 30(347) - True Toggle FOV(348) - True Toggle FOV(349) - True Increase FOV(351) - True Decrease FOV(353) - True Cockpit View(355) - True No Cockpit View(357) - True External View(359) - True Next Friendly View(361) - True Next Enemy View(363) - True Fly-by View(365) - True Padlock Enemy(367) - True Padlock Friendly(369) - True Padlock Enemy Ground(371) - True Padlock Friendly Ground(373) - True Padlock Next(375) - True Padlock Prev(377) - True Instant View Forward w/ Padlock(379) - True Padlock Enemy (ext)(381) - True Padlock Friendly (ext)(383) - True Padlock Closest Enemy (ext)(385) - True Padlock Enemy Ground (ext)(387) - True Padlock Friendly Ground (ext)(389) - True Padlock Closest Enemy Ground (ext)(391) - True Chase View(393) - True Friendly Chase View(395) - True Enemy Chase View(397) - True Toggle Gunsight(399) - True Autopilot(401) - True Level Autopilot(403) - True Bailout(405) - True Gunsight Dimmer(407) - True Cockpit Lights(409) - True Nav Lights(411) - True Landing Lights(413) - True Wingtip Smoke(415) - True Map(417) - True Chat(419) - True Online Rating(421) - True Speed Bar(423) - True Icon Types(425) - True Mirrors(427) - True Quick Start/Save Track(429) - True Radio Mute(431) - True Radio Channel Switch(433) - True Time Acceleration(435) - False Normal Time(437) - False Time Deceleration(439) - False Pause(441) - False Next Ratings Page(443) - True Seat Position(447) - True Time Skip(449) - False

by **BaLrOg** on Mon May 22, 2006 7:10 pm

Cheers for that spectre. Sure will come in handy As would a peek at your code too

Just to see how you achieved your output and results.

As far as I can tell Madtoc and WWSensei are the only ones that have actually coded anything for device link in C++ and I believe all of the funtions on Madtoc's virtal cockpit can be used online?

regards

Balrog

by **3./JG51_Specter** on Mon May 22, 2006 11:20 pm

BaLrOg wrote:Cheers for that spectre. Sure will come in handy As would a As far as I can tell Madtoc and WWSensei are the only ones that have actually coded anything for device link in C++ and I believe all of the funtions on Madtoc's virtal cockpit can be used online?

All of the inputs will work, but the instrumentation (i.e. Altimeter, Variometer, Artificial Horizon, etc ...) will only work in single player mode. It says this in the devicelink.txt, but I wasn't sure if it meant devicelink doesn't work online or just the instrumentation part of it.

Here's the source code, it was more of a proof of concept for a bigger project so don't expect anything to grand. You'll need a gnu C compiler to build it and need to change the address and port in the source.

No real need for a makefile, this is the only command you need.
gcc -o dl dl.c

dl.c

Code: Select all: /* * File: dl.c * Purpose: This is a small c application that polls the 1C/Maddox Il-2 series device link interface * for the current state of the access parameters. Prints all results to stdout. * * Req'd: utilizes gnu libraries any unix-like OS should compile fine or port (i.e. cygwin) * * Version: 1.0 * Author: Chris Guthrie (3./JG51_Specter) * * Legal Stuff: * I submit this source code under the BLA (Beer License Agreement). You are free to * use this code in anyway you like. I only request that I receive credit where do. Also, * if we happen to find ourselves in a pub somewhere, share how you found this * useful over a round or two. * * Use at your own risk, I'm not responsible for any damages or problems that might * be directly or indirectly caused by this source code. This includes bashing your head * on the keyboard out of frustration. */ #include <sys/socket.h> #include <netinet/in.h> #include "il2code.h" //change these to point to your il-2 game computer and port set in conf.ini #define DL_ADDRESS "10.0.0.100" #define DL_PORT 27500 void parseOutput (char * str) { //converts Devicelink answers from 4/6 parameter requests //to human readable form char * start = str; char * stop; char * ptr; int param; char buffer[256]; //loops through str for (stop = start + 1; *stop != 0; stop++) { if (*stop == '/' || *(stop+1) == 0) { //a new parameter is found if (*start != 'A') { //parses parameter if it isn't the answer header memset (buffer, 0, sizeof(buffer)); //copies A/{##\##} substring enclosed in curly brace to buffer strncpy (buffer, start, stop - start + 1); //finds the \ for (ptr = buffer; *ptr != '\\'; ptr ++) {;} ptr++; //outputs Name(Param #) - State param = atoi (ptr); if (IL2CODES[param][0] != '-') printf ("%s(%i) - %s\n", IL2CODES[param], param, (buffer[strlen(buffer) - 1] == '0')?"False":"True"); } start = stop + 1; stop = start + 1; } } } int main (int argc, char *argv[]) { struct sockaddr_in sin; struct sockaddr_in reply; int s; int i; int nreply = sizeof(struct sockaddr_in); char str[256]; char buffer[256]; memset ( (char*) &sin, 0, sizeof(struct sockaddr_in)); memset ( (char*) &reply, 0, sizeof(struct sockaddr_in)); //set up UDP to server address and port sin.sin_family = AF_INET; sin.sin_addr.s_addr = inet_addr (DL_ADDRESS); sin.sin_port = htons(DL_PORT); s = socket (AF_INET, SOCK_DGRAM, 0); for (i = 2; i < 450; i += 1) { fd_set readfds; struct timeval timeout; //times out in 1second timeout.tv_sec = timeout.tv_usec = 1; //forms request packet based on parameter id (odd - set, even - get) if (i % 2 == 0) sprintf (str, "R/%c\\%i\0", '4', i); else sprintf (str, "R/%c\\%i\0", '6', i); //sends packet to server if (sendto (s, str, strlen(str), 0, (struct sockaddr *) &sin, sizeof(sin)) == -1) { perror("sendto"); return 1; } //clears receive buffer memset(buffer, 0, sizeof(buffer)); //enables timeout FD_ZERO (&readfds); FD_SET (s, &readfds); if (select (s+1, &readfds, NULL, NULL, &timeout) < 0) { perror ("on select"); } if (FD_ISSET (s, &readfds)) { //UDP receive buffer has been updated if (recvfrom (s, buffer, sizeof(buffer), 0, (struct sockaddr *) &reply, &nreply) == -1) { perror ("recvfrom"); } //received package is parsed and printed parseOutput (buffer); } } return 0; }

il2code.h (contains the name map for the parameters)

Code: Select all: #ifndef __IL2CODE_H_ #define __IL2CODE_H_ //Parameter Name Map char * IL2CODES[451] = { "-", "-", "Version", "-", "Accessible Get", "-", "Accessible Set", "-", "-", "-", "-", "Camera Turn Angles", "-", "-", "-", "-", "-", "-", "-", "-", "Time of Day", "-", "Aircraft Model", "-", "Cockpit Quantity", "-", "Current Cockpit", "-", "Engine Quantity", "-", "Airspeed Indicator", "-", "Variometer", "-", "Slip", "-", "Turn", "-", "Angular Speed", "-", "Altimeter", "-", "Azimuth", "-", "Beacon Azimuth", "-", "Roll", "-", "Pitch", "-", "Fuel", "-", "G Load", "-", "Shake Level", "-", "Left Gear Position", "-", "Right Gear Position", "-", "Center Gear Position", "-", "Magneto", "-", "Tachometer", "-", "Manifold Pressure", "-", "Intake Oil Temperature", "-", "Outlet Oil Temperature", "-", "Water Temperature", "-", "Cylinder Temperature", "-", "-", "-", "-", "-", "Throttle", "Throttle", "Flaps", "Flaps", "Aileron", "Aileron", "Elevator", "Elevator", "Rudder", "Rudder", "Brakes", "Brakes", "Prop Pitch", "Prop Pitch", "Aileron Trim", "Aileron Trim", "Elevator Trim", "Elevator Trim", "Rudder Trim", "Rudder Trim", "Stabilizer", "Stabilizer", "-", "Ignition", "Boost (WEP)", "Boost (WEP)", "Magneto Next", "Magneto Next", "Magneto Prev", "Magneto Prev", "Supercharger Next", "Supercharger Next", "Supercharger Prev", "Supercharger Prev", "-", "Select All Engines", "-", "Unselect All Engines", "-", "Select Left Engines", "-", "Select Right Engines", "-", "Select Engine #1", "-", "Select Engine #2", "-", "Select Engine #3", "-", "Select Engine #4", "-", "Select Engine #5", "-", "Select Engine #6", "-", "Select Engine #7", "-", "Select Engine #8", "-", "Toggle All Engines", "-", "Toggle Left Engines", "-", "Toggle Right Engines", "-", "Toggle Engine #1", "-", "Toggle Engine #2", "-", "Toggle Engine #3", "-", "Toggle Engine #4", "-", "Toggle Engine #5", "-", "Toggle Engine #6", "-", "Toggle Engine #7", "-", "Toggle Engine #8", "-", "Fire Extinguisher", "Feather Prop", "Feather Prop", "Gear Position", "Toggle Gear", "-", "Raise Gear Manually", "-", "Lower Gear Manually", "-", "Cowl/Armor Flaps", "Airbrake", "Airbrake", "Lock Tail Wheel", "Lock Tail Wheel", "-", "Jettison Drop Tanks", "-", "Attach/Detach Aircraft", "Weapon 1", "Weapon 2", "Weapon 2", "Weapon 2", "Weapon 3", "Weapon 3", "Weapon 4", "Weapon 4", "Weapon 1+2", "Weapon 1+2", "Toggle Gun Pods", "Toggle Gun Pods", "-", "Toggle Sight Mode", "-", "Increase Sight Distance", "-", "Decrease Sight Distance", "-", "Adjust Sight Right", "-", "Adjust Sight Left", "-", "Increase Sight Altitude", "-", "Decrease Sight Altitude", "-", "Increase Sight Velocity", "-", "Decrease Sight Velocity", "Wing Fold", "Wing Fold", "Canopy", "Canopy", "Arrestor Hook", "Arrestor Hook", "Chocks", "Chocks", "-", "-", "Gunner Fire", "Gunner Fire", "-", "Gunner Move", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "Gunner Position", "Gunner Position", "-", "Jump to Cockpit #1 (Pilot)", "-", "Jump to Cockpit #2", "-", "Jump to Cockpit #3", "-", "Jump to Cockpit #4", "-", "Jump to Cockpit #5", "-", "Jump to Cockpit #6", "-", "Jump to Cockpit #7", "-", "Jump to Cockpit #8", "-", "Jump to Cockpit #9", "-", "Jump to Cockpit #10", "-", "FOV 90", "-", "FOV 85", "-", "FOV 80", "-", "FOV 75", "-", "FOV 70", "-", "FOV 65", "-", "FOV 60", "-", "FOV 55", "-", "FOV 50", "-", "FOV 45", "-", "FOV 40", "-", "FOV 35", "-", "FOV 30", "Toggle FOV", "Toggle FOV", "-", "Increase FOV", "-", "Decrease FOV", "-", "Cockpit View", "-", "No Cockpit View", "-", "External View", "-", "Next Friendly View", "-", "Next Enemy View", "-", "Fly-by View", "-", "Padlock Enemy", "-", "Padlock Friendly", "-", "Padlock Enemy Ground", "-", "Padlock Friendly Ground", "-", "Padlock Next", "-", "Padlock Prev", "-", "Instant View Forward w/ Padlock", "-", "Padlock Enemy (ext)", "-", "Padlock Friendly (ext)", "-", "Padlock Closest Enemy (ext)", "-", "Padlock Enemy Ground (ext)", "-", "Padlock Friendly Ground (ext)", "-", "Padlock Closest Enemy Ground (ext)", "-", "Chase View", "-", "Friendly Chase View", "-", "Enemy Chase View", "-", "Toggle Gunsight", "-", "Autopilot", "-", "Level Autopilot", "-", "Bailout", "-", "Gunsight Dimmer", "-", "Cockpit Lights", "-", "Nav Lights", "-", "Landing Lights", "-", "Wingtip Smoke", "-", "Map", "-", "Chat", "-", "Online Rating", "-", "Speed Bar", "-", "Icon Types", "-", "Mirrors", "-", "Quick Start/Save Track", "-", "Radio Mute", "-", "Radio Channel Switch", "-", "Time Acceleration", "-", "Normal Time", "-", "Time Deceleration", "-", "Pause", "-", "Next Ratings Page", "-", "Mute", "-", "Seat Position", "-", "Time Skip", "-" }; #endif //__IL2CODE_H_

by **BaLrOg** on Mon May 22, 2006 11:42 pm

Yes I think it is the main gripe people have that have developed with devicelink.

The main reason, as I understand it, that aspects of it were disabled online was due to worries that it would start some kind of online urban mythology that people would some how code some kind of cheat.

Shame realy because a lot of very good projects and ideas seem to have been more or less crippled from the get go as a result of this paranoia.

Still there is perhaps hope that maybe this can be rectified for BoB or at least re-enabled with in IL2 once the community has migrated to bob?

Thanks for the peak at the code it will be interesting to have a play around with this

Good luck with your own project I shall be interested to see how you get on :wink:

by **WWSensei** on Thu Jun 15, 2006 1:18 am

Getting ready to post up v2.0.4 of my wrapper with some additional bug/logic fixes. Would appreciate someone looking over my 'A' response paramter parsing routine. I'm not happy with it. It works but screams at me that it coud be more efficient but haven't had time to futz with it too much. Would love the feedback.

2.0.3 has the same routine and can be downloaded here:

http://www.wingwalkers.org/vault/device ... rapper.zip

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