AltitudeTape.cpp

Go to the documentation of this file.

#include "../Instrument.h"

AltitudeTape::AltitudeTape(int prmX, int prmY, int prmWidth, int prmHeight, std::string prmTextureFile, float prmModulateKm) : Instrument(prmX, prmY, 1, 1)
{
        width = prmWidth;
        height = prmHeight;
        textureFile = prmTextureFile;
        modulateKm = prmModulateKm;
}

void AltitudeTape::Initialize(Bus* prmBus, Logger* prmLogger, DEVICE_OBJECT* prmDevice, int prmScreenWidth, int prmScreenHeight, std::vector<Font>* prmFonts, bool prmFlip)
{
        Instrument::Initialize(prmBus, prmLogger, prmDevice, prmScreenWidth, prmScreenHeight, prmFonts, prmFlip);

        sprite.width = width;
        sprite.height = height;
        sprite.pathAndFilename = textureFile;
        sprite.Initialize(logger, bus, prmDevice, prmScreenHeight, x, y, prmFlip);
        sprite.z = 0.9f; // the artificial horizon is at 1.0, text is at 0.5, overlay is at 0.6
        sprite.texSize.y = 0.5f;

        tvpitchscale = 0.5f * modulateKm; // 10 px per 20 knot 
        vertoffset = -4.0f / static_cast<float>(sprite.desc.Height) + 0.25f;

}

void AltitudeTape::Render(float fElapsed)
{
        alt += (bus->PressureAltitude - alt)*0.25f;

        // 0.5 to 0.25 to 0.75 
        float temp = fmodf(-alt * tvpitchscale, 0.5f) + vertoffset;
        if (temp < 0.0f) temp += 0.5f;
        if (temp > 0.5f) temp -= 0.5f;
        sprite.texCoord.y = temp;
        sprite.Update();
        sprite.Draw();


        WCHAR msg[99];
        float wholealt = floorf(alt*modulateKm);
        swprintf_s(msg, 99, L"%3.0f", wholealt);
        DrawTextW(msg, x + 15, y + 150, DT_NOCLIP, D3DXCOLOR(0.0f, 1.0f, 0.0f, 1.0f), 1, "AltitudeReadout?");

        float fractalt = (alt*modulateKm - wholealt)*1000.0f;
        swprintf_s(msg, 99, L"%03.0f", floorf(fractalt));
        DrawTextW(msg, x + 55, y + 155, DT_NOCLIP, D3DXCOLOR(0.0f, 1.0f, 0.0f, 1.0f), 0, "AltitudeReadout?");
};