/*******************
 step3.h
*******************/

#include <libps.h>

#define ORDERING_TABLE_LENGTH (12)
#define MAX_NO_PACKETS  (248000) // This small because I need memory for all the TMDs
				// may need to enlarge, originally=(248000)

#define TRUE (1)
#define FALSE  (0)

#define SCREEN_WIDTH  (320)
#define SCREEN_HEIGHT (240)

int CurrentBuffer;

// We need two Ordering Table Headers, one for each buffer
GsOT OTable_Header[2];
// And we need Two Ordering Tables, one for each buffer
GsOT_TAG        OTable_Array[2][1<<ORDERING_TABLE_LENGTH];
//We also allocate memory used for depth sorting, a block for each buffer
PACKET          Packet_Memory[2][MAX_NO_PACKETS];

// This is an array of structures for the lights
GsF_LIGHT       LightSource[3];

// Define a structure to hold a 3D object that will be rendered on screen
// Also hold vatibles used for world physics calculations.
typedef struct
{
   u_long        PedalDown;
   u_long        InAir;

   GsDOBJ2       Object_Handler;
   GsCOORDINATE2 Object_Coord;
   VECTOR        Direction;
   VECTOR        Velocity;
   VECTOR        Skid;
   long          yAngle;
   long		 lastYAngle;
   long          Acceleration;
   long 	 Radius;

   long          Grip;
   long          Mass;
   long          AccelerateSpeed;
   long          TurnSpeed;
   long          MaxSpeed;
   u_long        CurrentBeacon;
   u_long	 Lap;
   VECTOR	 BeaconLocation[2];       

}ObjectStruct;

// Camera that follows an object without changing its z rotation.
typedef struct
{
     GsCOORDINATE2      *followMe;
     GsRVIEW2           myView;

}FVIEW;


/************* FUNCTION PROTOTYPES *******************/

void RenderPrepare();
void RenderFinish();
void InitialiseModel(ObjectStruct *theModel, int nX, int nY, int nZ,
	long rad,unsigned long *lModelAddress);
void DrawObject(ObjectStruct *theModel,u_long bitShift);
void InitialiseALight(GsF_LIGHT *flLight, int nLight, int nX, int nY, int nZ,
		int nRed, int nGreen, int nBlue);
void InitialiseLights();
void InitialiseMapLights();
void InitialiseView(GsRVIEW2 *view, int nProjDist, int nRZ,
						  int nVPX, int nVPY, int nVPZ,
						  int nVRX, int nVRY, int nVRZ);
void Initialise3DGraphics();
void RenderWorld();

void RotateModel(GsCOORDINATE2 *  Object_Coord, int nRX, int nRY, int nRZ);
void RotateModelVector (GsCOORDINATE2 *Object_Coord,SVECTOR *rotateVector, int nRX, int nRY, int nRZ );
void MoveModel (GsCOORDINATE2 *Object_Coord, int nX, int nY, int nZ);
void SetModel(GsCOORDINATE2 *Object_Coord, int nX, int nY, int nZ);
void AdvanceModel(ObjectStruct *theModel, long velocity);
void ApplyVelocity(ObjectStruct *theModel);
void RotateModelMatrix (ObjectStruct *theModel, int nRX, int nRY, int nRZ);
long NormalScale(long x,long y,long z);
void AdjustCoordinate2(GsCOORDINATE2 *coord);
void UpdateFollowView(FVIEW *view);

void InitialiseFollowView(FVIEW *view, int nProjDist, int nRZ,
						  int nVPX, int nVPY, int nVPZ,
						  int nVRX, int nVRY, int nVRZ,
						  GsCOORDINATE2 *Object_Coord);
void InitialiseTrackerView(GsRVIEW2 *view, int nProjDist, int nRZ,
						  int nVPX, int nVPY, int nVPZ,
						  int nVRX, int nVRY, int nVRZ,GsCOORDINATE2 *Object_Coord);
void InitialiseStaticView(GsRVIEW2 *view, int nProjDist, int nRZ,
						  int nVPX, int nVPY, int nVPZ,
						  int nVRX, int nVRY, int nVRZ);

/*****************************************************/