IndicatedAirSpeedTape.cpp

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#include "../Instrument.h"

IndicatedAirSpeedTape::IndicatedAirSpeedTape(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 IndicatedAirSpeedTape::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.elementName = "AirspeedTape";
        sprite.width = width;
        sprite.height = height;
        sprite.z = 0.9f; // the artificial horizon is at 1.0, text is at 0.5, overlay is at 0.6
        sprite.pathAndFilename = textureFile;
        sprite.Initialize(logger, bus, pDevice, screenHeight, x, y, prmFlip);

        tvpitchscale = 2.2f / static_cast<float>(sprite.desc.Height) * modulateKm; // 44 px per 20 knot 
        vertoffset = 742.0f / static_cast<float>(sprite.desc.Height);
        font = 2;

        tvrange = static_cast<float>(sprite.desc.Width) / static_cast<float>(sprite.desc.Height) * height / width; // proportionally match above
        sprite.texSize.y = tvrange;
}

void IndicatedAirSpeedTape::Render(float fElapsed)
{
        ias += (bus->IndicatedAirspeed - ias)*0.25f;

        sprite.texCoord.y = -ias* tvpitchscale + vertoffset;
        sprite.Update();
        sprite.Draw();

        WCHAR msg[99];
        swprintf_s(msg, 99, L"%3.0f", ias* modulateKm);
        DrawTextW(msg, 12, 236, DT_NOCLIP, D3DXCOLOR(0.0f, 1.0f, 0.0f, 1.0f), font, "AirspeedReadout");
};