SCR_LimitCylinderManualCameraComponent.c

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[BaseContainerProps(), SCR_BaseManualCameraComponentTitle()]
class SCR_LimitCylinderManualCameraComponent : SCR_BaseManualCameraComponent
{
    [Attribute(defvalue: "1")]
    protected float m_fRadius;
    
    [Attribute(defvalue: "2")]
    protected float m_fHeightMinor;
    
    private float m_fRadiusSq;
    private vector m_vPos;
    
    //------------------------------------------------------------------------------------------------
    override void EOnCameraFrame(SCR_ManualCameraParam param)
    {
        if (!param.isDirty) return;
        
        m_vPos = param.transform[3];
        
        //--- Horizontal
        if (vector.DistanceSqXZ(m_vPos, vector.Zero) > m_fRadiusSq)
        {
            float angle = Math.Atan2(m_vPos[0], m_vPos[2]);
            m_vPos[0] = Math.Sin(angle) * m_fRadius;
            m_vPos[2] = Math.Cos(angle) * m_fRadius;
        }
        
        //--- Vertical
        m_vPos[1] = Math.Clamp(m_vPos[1], -m_fHeightMinor, m_fHeightMinor);
        
        param.transform[3] = m_vPos;
    }
    
    //------------------------------------------------------------------------------------------------
    override bool EOnCameraInit()
    {
        m_fRadiusSq = m_fRadius * m_fRadius;
        return true;
    }
}