#ifndef ENGINE_H
#define ENGINE_H

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define	ENGINE_CONTEXT_LEVEL_MAIN		0
#define	ENGINE_CONTEXT_LEVEL_SUB		1

#define	ENGINE_CONTEXT_INVALID			0
#define	ENGINE_CONTEXT_MAIN				1
#define	ENGINE_CONTEXT_FRAME			2
#define	ENGINE_CONTEXT_WORLD			3
#define	ENGINE_CONTEXT_ATTRIBUTE		4
#define	ENGINE_CONTEXT_TRANSFORM		5
#define	ENGINE_CONTEXT_SOLID			6
#define	ENGINE_CONTEXT_OBJECT			7
#define	ENGINE_CONTEXT_MOTION			8

extern ri_var_t* V_P;
extern ri_var_t* V_PZ;
extern ri_var_t* V_PW;
extern ri_var_t* V_N;
extern ri_var_t* V_NP;
extern ri_var_t* V_CS;
extern ri_var_t* V_OS;
extern ri_var_t* V_S;
extern ri_var_t* V_T;
extern ri_var_t* V_ST;
extern ri_var_t* V_WIDTH;
extern ri_var_t* V_CONSTANTWIDTH;

typedef uint32_t context_t;

typedef struct _sengine_t
{
	FILE *pFile;
	RtToken name;
	context_t *pContext;
	stack_t *pContext_stack;
	var_list_t varList;
	scene_t geometry;
	scene_t lights;
	graph_state_t gs;
	void *pErrorHandler;

} engine_t;

// JayMan functions
void Engine_init(engine_t *pObj, RtToken name);
void Engine_free(engine_t *pObj);
void Engine_context_set(engine_t *pObj, uint32_t context, uint32_t level);
uint32_t Engine_context_get(engine_t *pObj, uint32_t level);
void Engine_context_push(engine_t *pObj);
void Engine_context_pop(engine_t *pObj);

void Engine_Render(engine_t *pObj);
void Engine_DeleteScene(engine_t *pObj);
void Engine_SceneInfo(engine_t *pObj);

void* jmalloc(uint32_t size);
void jfree(void *pMem);
void jstats(void);

void Tic(double *tic_start);
double Toc(double *tic_start);

#endif // ENGINE_H