TCAS.cpp

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#include "Module.h"

Tcas::Tcas(Bus* prmBus): Module(prmBus)
{
}

void Tcas::FrameMove(float fElapsed)
{
        for (UINT i = 0; i < bus->commandStream.size(); i++)
        {
                Command command = bus->commandStream.at(i);
                if (command.delay != 0.0f) continue;

                if (command.name == "TcasSystemTest" && testProgress == 0)
                {
                        testProgress = 1;
                        bus->commandStream.erase(bus->commandStream.begin() + i);
                }
        }

        if (testProgress > 0)
        {
                secsincelast += fElapsed;
                if (secsincelast >= 2.0f)
                {
                        secsincelast = 0.0f;
                        Command command;
                        switch (testProgress)
                        {
                        case 1: command.name = "TrafficTraffic";
                                break;
                        case 2: command.name = "ClimbClimb";
                                break;
                        case 3: command.name = "DescendDescend";
                                break;
                        case 4: command.name = "IncreaseClimb";
                                break;
                        case 5: command.name = "IncreaseDescent";
                                break;
                        case 6: command.name = "ReduceClimb";
                                break;
                        case 7: command.name = "ReduceDescent";
                                break;
                        case 8: command.name = "ClimbClimbNow";
                                break;
                        case 9: command.name = "DescendDescendNow";
                                break;
                        case 10: command.name = "MaintainVerticalSpeedMaintain";
                                secsincelast = -1.0f;
                                break;
                        case 11: command.name = "AdjustVerticalSpeedAdjust";
                                secsincelast = -1.0f;
                                break;
                        case 12: command.name = "MonitorVerticalSpeed";
                                break;
                        case 13: command.name = "Crossing";
                                secsincelast = 0.5f;
                                break;
                        case 14: command.name = "ClearOfConflict";
                                break;
                        case 15: command.name = "TcasSystemTestOk";
                                break;
                        }
                        bus->commandStream.push_back(command);
                        testProgress++;
                        if (testProgress == 16)
                                testProgress = 0;
                }
        }

        /*
inhibited below 1000 feet
inhibited by gpws


static char tcasmode=0;
if (!epgwc && game->tcastime<99.0f)
{
swprintf_s(gpwsmsg, 32, L"TCAS TTI %.0f", game->tcastime);
if ((flasher>0.0f && oldflasher<=0.0f) || (flasher>0.2f && oldflasher<=0.2f))
tempcolor=0xFFFFFF00;
else
tempcolor=0xFFC4C400;
}
if (secsincelast>=2.0f) // last spoke
{
char oldtcasmode=tcasmode;
if (game->tcastime<25.0f && tcasmode>0) // must issue traffic traffic first
{
if (oldtcasmode==2 || oldtcasmode==3) // already issued RA
tcasmode=4;
else if (game->tcastgtC!=-1)
{
D3DXVECTOR3 result1;
D3DXVec3Subtract( &result1, &playerships[ourcockpit.ourshipC].position, &playerships[game->tcastgtC].position );
D3DXVec3TransformCoord( &result1, &result1, &game->matrixView );

if (result1.z!=0.0f)
{
float bear=D3DXToDegree( atanf( result1.x/result1.z ) );
float mark=D3DXToDegree( atanf( result1.y/result1.z ) );
float f_temp=sqrtf(mark*mark+bear*bear);
if (f_temp>180.0f)
{
f_temp=180.0f/f_temp;
mark*=f_temp; bear*=f_temp;
}
if (result1.z>0.0f) // Behind us
{
if (bear>0.0f)
bear-=180.0f;
else
bear+=180.0f;
mark=-mark;
}
if (mark<0.0f)
tcasmode=2; // climb
else
tcasmode=3; // descend
}
}
}
else if (game->tcastime<40.0f) // must be online, not a gv, closure time
{
tcasmode=1; // traffic traffic
if (oldtcasmode!=1)
{
// flash traffic
char msg[999];
sprintf_s(msg, 999, "TCAS* flash traffic %i (%i) now %.1f away (%f km) debug %i\n",
game->tcastgtC, playerships[game->tcastgtC].vehicle, game->tcastime, playerships[game->tcastgtC].distance, playerships[game->tcastgtC].reference);
_write(logfile, msg, strlen(msg));
}
}
else // greater than 40
{
static float coctime=0.0f;
coctime+=fElapsedTime;
if (coctime>10.0f || tcasmode==0)
{
tcasmode=0; // clear of conflict
coctime=0.0f;
}
else
tcasmode=5; // waiting to clear?
}


if ((tcasmode!=oldtcasmode && (tcasmode>oldtcasmode || tcasmode==0)) ||
tcasmode==4)
{
if (tcasmode!=5 && ourcockpit.power>0.5f)
{
SClientPacket outpacket;
outpacket.type=10; // sound effect
outpacket.f_x=19.0f; // TCAS
outpacket.f_y=(float)tcasmode; //
outpacket.f_z=0.0f;
outpacket.f_w=0.0f;
game->SendPacket( &outpacket, sizeof(SClientPacket), true, 0 );
secsincelast=0.0f;
}
}
}
// END OF TCAS
*/
}