SCR_ATLManualCameraComponent.c

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[BaseContainerProps(), SCR_BaseManualCameraComponentTitle()]
class SCR_ATLManualCameraComponent : SCR_BaseManualCameraComponent
{
    [Attribute(defvalue: "5", desc: "Below this height, camera copies terrain height precisely.")]  
    private int m_fATLMinHeight;
    
    [Attribute(defvalue: "50", desc: "When the camera is above this height, it moves ASL, not ATL.")]   
    private int m_fATLMaxHeight;
    
    //------------------------------------------------------------------------------------------------
    override void EOnCameraFrame(SCR_ManualCameraParam param)
    {
        if (!param.isDirty)
            return;
        
        //--- Get target height
        vector pos = param.transform[3];
        float height = pos[1] - Math.Max(param.world.GetSurfaceY(pos[0], pos[2]), 0);
        
        //--- Terminate when the height is above threshold
        if (height > m_fATLMaxHeight)
            return;
        
        //--- Get original height
        vector posOrig = param.transformOriginal[3];
        float heightOrig = posOrig[1] - Math.Max(param.world.GetSurfaceY(posOrig[0], posOrig[2]), 0);
        
        //--- Get interpolated height between min and max
        float progress = Math.InverseLerp(m_fATLMinHeight, m_fATLMaxHeight, height);
        float heightInterpolated = Math.Lerp(heightOrig - height, 0, progress);
        
        //--- Apply manual input
        float inputDiff = 0;
        if (param.isManualInput)
            inputDiff = pos[1] - posOrig[1];
        
        //--- Apply transormation
        pos[1] = pos[1] + heightInterpolated + inputDiff;
        param.transform[3] = pos;
    }
 
    //------------------------------------------------------------------------------------------------
    override bool EOnCameraInit()
    {
        return true;
    }
}