Method Briefing_Update_Helicopter

Source/Fodder.cpp:3951–4011

}

void cFodder::Briefing_Update_Helicopter() {

    mBriefingHelicopter_ScreenX = (((int)mHelicopterPosX - 0x20) >> 16);
    mBriefingHelicopter_ScreenY = (((int)mHelicopterPosY) >> 16);

    mBriefingHelicopter_NextUpdateCountdown -= mBriefingHelicopter_TimeScale;

    if (mBriefingHelicopter_NextUpdateCountdown <= 0.0f) {

        mBriefingHelicopter_TargetDirection = mBriefing_Helicopter_Offsets_Amiga[mHelicopterOffsetIndex];
        mBriefingHelicopter_TargetSpeed = mBriefing_Helicopter_Offsets_Amiga[mHelicopterOffsetIndex + 1];
        mBriefingHelicopter_NextUpdateCountdown = (mBriefing_Helicopter_Offsets_Amiga[mHelicopterOffsetIndex + 2]);

        if (mBriefingHelicopter_NextUpdateCountdown <= 0.0f)
            return;

        mHelicopterOffsetIndex += 3;
    }

    mBriefingHelicopter_DirectionIndex &= 0x1FE;
    uint16 bx = mBriefingHelicopter_DirectionIndex;

    int32 ax = mDirectionVectorTable[(bx / 2) & 0xFF];
    ax >>= 2;

    mHelicopterPosX += (ax * mBriefingHelicopter_Speed * mBriefingHelicopter_TimeScale);

    bx += 0x80;
    bx &= 0x1FE;

    ax = mDirectionVectorTable[(bx / 2) & 0xFF];
    ax >>= 2;

    mHelicopterPosY += (ax * mBriefingHelicopter_Speed * mBriefingHelicopter_TimeScale);

    bx = mBriefingHelicopter_TargetDirection - mBriefingHelicopter_DirectionIndex;
    bx >>= 5;
    --bx;
    bx ^= 0x0F;
    bx &= 0x0F;

    int16 al = mDirectionStepTable[bx];
    al <<= 2;
    //mBriefingHelicopter_DirectionIndex += al;
    mBriefingHelicopter_DirectionIndex += static_cast<int>(al * mBriefingHelicopter_TimeScale);

    mBriefingHelicopter_DirectionIndex &= 0x1FE;

    if (mBriefingHelicopter_TargetSpeed != mBriefingHelicopter_Speed) {
        if (mBriefingHelicopter_Speed > mBriefingHelicopter_TargetSpeed)
            mBriefingHelicopter_Speed -= (1.0f * mBriefingHelicopter_TimeScale);
        else
            mBriefingHelicopter_Speed += (1.0f * mBriefingHelicopter_TimeScale);
    }

    if (mVersionCurrent->isCannonFodder1() && mVersionCurrent->isPC())
        mBriefingHelicopter_FrameCounter += 1;