Method DrawTankDirection

engine/Poseidon/UI/InGame/InGameUIDraw.cpp:628–752

}

void InGameUI::DrawTankDirection(const Camera& camera)
{
    if (_tankPos >= 1)
    {
        return;
    }
    AIUnit* unit = GWorld->FocusOn();
    PoseidonAssert(unit);
    EntityAI* veh = unit->GetVehicle();

    float tankLeft = tankX;

    const int w = GLOB_ENGINE->Width2D();
    const int h = GLOB_ENGINE->Height2D();

    Matrix4Val camInvTransform = camera.GetInvTransform();
    Vector3 dirHull(VRotate, camInvTransform, veh->Direction());
    Vector3 dirTurret(VRotate, camInvTransform, veh->GetWeaponDirection(0));
    Vector3 dirObsTurret(VRotate, camInvTransform, veh->GetEyeDirection());

    Matrix4 mrot(MZero);
    Matrix4 mtrans1 = Matrix4(MTranslation, Vector3(-0.5, 0, -0.5));
    Matrix4 mtrans2 = Matrix4(MTranslation, Vector3(0.5, 0, 0.5));

    Draw2DPars pars;
    pars.spec = NoZBuf | IsAlpha | IsAlphaFog | ClampU | ClampV;

    // Rect2D rect(tankLeft * w, tankY * h, tankW * w, tankH * h);

    const float size = 0.67;

    Rect2DPixel rect(w * (tankLeft + tankW * 0.5 - tankW * size * 0.5), h * (tankY + tankH * 0.5 - tankH * size * 0.5),
                     tankW * w * size, tankH * h * size);

#define v000 VZero
#define v001 VForward
#define v100 VAside
#define v101 Vector3(1, 0, 1)

    mrot.SetUpAndDirection(VUp, dirHull);
    Matrix4 m = mtrans2 * mrot * mtrans1;
    Vector3 uv = m.FastTransform(v000);
    pars.uTR = uv[2];
    pars.vTR = uv[0];
    uv = m.FastTransform(v001);
    pars.uTL = uv[2];
    pars.vTL = uv[0];
    uv = m.FastTransform(v100);
    pars.uBR = uv[2];
    pars.vBR = uv[0];
    uv = m.FastTransform(v101);
    pars.uBL = uv[2];
    pars.vBL = uv[0];

    // draw all hull components
    pars.SetColor(ColorFromHit(veh->GetHitForDisplay(0)));
    pars.mip = GEngine->TextBank()->UseMipmap(_imageHull, 0, 0);
    GEngine->Draw2D(pars, rect, rect);