VeCTeR76

hi gents, It seems I have a problem when Lua sends data to my server app. The data always seems to be proceeded by useless data. What I mean is: say, the data the Lua script sends is "40 30 70", the server will pick up the data as "kdjfkdj40 30 70" (kdjfk is just some random bytes I picked, it's size is also random, sometimes 0). I used some values to mark the beginning of the data, but I just found this to be annoying, as it shouldn't send useless data. Any ideas?

Here's some code I posted in the lo-mac.com forum, but for those who are interested, here's a basic inertial map, using speed to calculate position. It's basic, and it doesn't calculate for wind yet. struct mapData { long x; long y; long z; unsigned long zoom; long xWp[ NUMBEROFWAYPOINTS ]; long yWp[ NUMBEROFWAYPOINTS ]; long zWp[ NUMBEROFWAYPOINTS ]; unsigned int lastWp; unsigned int currWp; }; // map.cpp #define wpSize 6 #define mySize 6 #define minLineFactor 0.75 #define minZoom 16 // InitMap ==================================================================================================== void ssWindow::InitMap() { mfdMap.x = 0; mfdMap.y = 0; mfdMap.z = 0; mfdMap.zoom = minZoom; mfdMap.currWp = 0; mfdMap.lastWp = 0; } // AddMapDistance ==================================================================================================== void ssWindow::AddMapDistance( unsigned int speed, unsigned int alt, int pitch, int bank, int yaw, int aoa, unsigned int currTime ) { int horzSpeed; unsigned int heading; static unsigned int lastTime = 0; // calculate horizontal speed // d = t * v horzSpeed = ( currTime - lastTime ) * speed * tcos( abs( pitch ) ) / 360; // adjust heading for AOA if ( bank > 0 ) heading = yaw; else heading = yaw; heading = heading % 360; // record every tenth of a kilometer mfdMap.x += horzSpeed * tcos( heading ) / 10; mfdMap.y += horzSpeed * tsin( heading ) / 10; mfdMap.z = alt; lastTime = currTime; } // DrawMap ==================================================================================================== void ssWindow::DrawMap( int x, int y, int w, int h, int heading ) { int i; int cX = x + w / 3; int cY = y + h / 2; int wpX, wpY; long zoomX, zoomY; char tempStr[ 32 ]; unsigned long rangeToWp = 0; int wpHeading = 0; setlinestyle( SOLID_LINE, 0, NORM_WIDTH ); setcolor( BackGrndColor ); // clear old map waypoints setfillstyle( SOLID_FILL, BackGrndColor ); bar( x + 1, y + 1, x + w - 1, y + h - 1 ); setlinestyle( SOLID_LINE, 0, NORM_WIDTH ); setcolor( TextColor ); // do this everytime??? fix this rectangle( x, y, x + w, y + h ); line( cX - mySize, cY - mySize, cX + mySize, cY ); line( cX - mySize, cY + mySize, cX + mySize, cY ); line( cX - mySize, cY + mySize, cX - mySize, cY - mySize ); setcolor( TextColor ); // draw waypoints for ( i = 0; i < mfdMap.lastWp; i++ ) { // calculate difference from plane x and y zoomX = ( mfdMap.xWp[ i ] - mfdMap.x ) * 10 / mfdMap.zoom; zoomY = ( mfdMap.yWp[ i ] - mfdMap.y ) * 10 / mfdMap.zoom; // calculate angle wpX = calcXComp( zoomX, zoomY, heading ) + cX; wpY = calcYComp( zoomX, zoomY, heading ) + cY; if ( wpX + wpSize < x + w && wpX - wpSize > x && wpY + wpSize < y + h && wpY - wpSize > y ) { sprintf( tempStr, "%d", i ); bmpTable.bmpTextxy( wpX - 6, wpY - 9, tempStr, TextColor, BackGrndColor ); circle( wpX, wpY, wpSize ); } //DrawSmallNumber( (unsigned) mfdMap.xWp[ i ], 30, 50, "xWp[ i ]", "" ); //DrawSmallNumber( (unsigned) zoomX, 20, 50, "zoomX", "" ); //DrawSmallNumber( (unsigned) (100 * tcos( heading )), 10, 50, "tcos()", "" ); // is this the waypoint we're looking for?? if ( mfdMap.currWp == i && mfdMap.lastWp > 0 ) { // calculate range zoomX = ( mfdMap.xWp[ i ] - mfdMap.x ) / 100; zoomY = ( mfdMap.yWp[ i ] - mfdMap.y ) / 100; if ( zoomX >= 200 || zoomY >= 200 ) { zoomX /= 10; zoomY /= 10; rangeToWp = sqrt_wchecking( (long) zoomX * zoomX + zoomY * zoomY ) * 10; } else rangeToWp = sqrt_wchecking( (long) zoomX * zoomX + zoomY * zoomY ); if ( wpX > x + w || wpX < x || wpY > y + h || wpY < y ) { zoomX = ( mfdMap.xWp[ i ] - mfdMap.x ) / mfdMap.zoom; zoomY = ( mfdMap.yWp[ i ] - mfdMap.y ) / mfdMap.zoom; if ( rangeToWp == 0 ) rangeToWp = 1; wpX = minLineFactor * mfdMap.zoom * calcXComp( zoomX, zoomY, heading ) / rangeToWp; wpY = minLineFactor * mfdMap.zoom * calcYComp( zoomX, zoomY, heading ) / rangeToWp; wpX += cX; wpY += cY; } line( cX, cY, wpX, wpY ); //sprintf( tempStr, "%d", i ); //bmpTable.bmpTextxy( wpX - 6, wpY - 9, tempStr, TextColor2, BackGrndColor ); } } sprintf( tempStr, "%lukm ", rangeToWp ); padLeft( tempStr, 5 ); bmpTable.bmpTextxy( x + w, y, tempStr, TextColor, BackGrndColor ); bmpTable.bmpTextxy( x + w, cY - 25, "[ ]", TextColor, BackGrndColor ); sprintf( tempStr, "%u", heading ); padRight( tempStr, 3, '0' ); bmpTable.bmpTextxy( x + w, cY - 18, tempStr, TextColor2, BackGrndColor ); sprintf( tempStr, "Z:%lu ", ( mfdMap.zoom / minZoom ) ); padRight( tempStr, 7 ); bmpTable.bmpTextxy( x + w, y + h - 50, tempStr, TextColor, BackGrndColor ); rectangle( x + w, y, x + w + 13, y + h ); } // IncMapZoom ==================================================================================================== void ssWindow::IncMapZoom() { if ( mfdMap.zoom >= 65536L ) mfdMap.zoom = 32768L; else mfdMap.zoom /= 2; if ( mfdMap.zoom < minZoom ) mfdMap.zoom = minZoom; } // DecMapZoom ==================================================================================================== void ssWindow::DecMapZoom() { mfdMap.zoom *= 2; if ( mfdMap.zoom >= 65536L ) mfdMap.zoom = 65536L; } // ChangeMapWP ==================================================================================================== void ssWindow::ChangeMapWP() { mfdMap.currWp++; if ( mfdMap.currWp >= mfdMap.lastWp ) mfdMap.currWp = 0; } // add waypoint ============================================================================ void ssWindow::AddMapWP() { mfdMap.xWp[ mfdMap.lastWp ] = mfdMap.x; mfdMap.yWp[ mfdMap.lastWp ] = mfdMap.y; mfdMap.zWp[ mfdMap.lastWp ] = mfdMap.z; mfdMap.lastWp++; } // restart ===================================================================================== void ssWindow::RestartMap() { mfdMap.x = 0; mfdMap.y = 0; mfdMap.z = 0; }

Crap, I messed up. First off, this code isn't really for the script, it's for a c++ program. Sorry, my bad. Secondly, if you cut and paste what I wrote above, your map will be rotated 90 clockwise. Sorry, that's the way I have mine... my screen is a laptop screen laying on its side.

Thank you sir!