void SetLightsWithTimeOfDayColour(RpWorld *);
void SetAmbientAndDirectionalColours(float f);
void SetBrightMarkerColours(float f);
void ReSetAmbientAndDirectionalColours(void);
void DeActivateDirectional(void);
void ActivateDirectional(void);
void SetAmbientColours(void);
void SetAmbientColoursForPedsCarsAndObjects(void);
void SetAmbientColoursToIndicateRoadGroup(int i);