Method DrawCompass

engine/Poseidon/UI/InGame/InGameUIDraw.cpp:1090–1161

}

void InGameUI::DrawCompass(EntityAI* vehicle)
{
    // Texture *textureDef = GLOB_SCENE->Preloaded(TextureWhite);
    Texture* texture;
    MipInfo mip;
    const int w = GLOB_ENGINE->Width2D();
    const int h = GLOB_ENGINE->Height2D();

    Texture* corner = GLOB_SCENE->Preloaded(Corner);
    DrawFrame(corner, bgColor, Rect2DPixel(coX * w, coY * h, coW * w, coH * h));

    //	Vector3Val dir = vehicle->Direction();
    Camera& cam = *GLOB_SCENE->GetCamera();
    Vector3Val dir = cam.Direction();

    // avoid singularity when heading up
    float xAngle;
    if (fabs(dir.X()) + fabs(dir.Z()) > 1e-3)
    {
        xAngle = atan2(dir.X(), dir.Z());
    }
    else
    {
        xAngle = 0;
    }
    xAngle *= 2 * INV_H_PI;
    for (int i = -2; i <= 2; i++)
    {
        float xLeft = xAngle + i;
        int xBase = toIntFloor(xLeft);
        if (xLeft - xBase >= 1.0)
        {
            xBase++;
        }
        int xBaseMod4 = xBase & (4 - 1);
        xLeft = xLeft + (xBaseMod4 - xBase);
        xBase = xBaseMod4;
        Poseidon::PreloadedTexture seg[4] = {Compass180, Compass270, Compass000, Compass090};
        texture = GLOB_SCENE->Preloaded(seg[xBase]);
        float xOffset = xLeft - xBase;
        mip = GLOB_ENGINE->TextBank()->UseMipmap(texture, 0, 0);
        float xScreen = (coX + 0.5 * coW + 0.25 * coW * (i - xOffset)) * w;
        GLOB_ENGINE->Draw2D(mip, compassColor, Rect2DPixel(xScreen, coY * h, 0.25 * coW * w, coH * h),
                            Rect2DPixel(coX * w, coY * h, coW * w, coH * h));
        // GLOB_ENGINE->TextBank()->ReleaseMipmap();
    }

    Rect2DPixel compassClip(coX * w, 0, coW * w, h);
    float ySize = coH * h * 0.5;
    float xSize = ySize * w / h * (3.0 / 4);
    float xPos = (coX + coW * 0.5) * w;
    PackedColor col = compassDirColor;
    GLOB_ENGINE->DrawLine(Line2DPixel(xPos, coY * h, xPos + xSize, coY * h - ySize), col, col, compassClip);
    GLOB_ENGINE->DrawLine(Line2DPixel(xPos, coY * h, xPos - xSize, coY * h - ySize), col, col, compassClip);

    int weapon = vehicle->SelectedWeapon();
    if (weapon >= 0)
    {