#include <SDL_image.h>


#define TEXTSPEED 2
#define TEXTDELAY 40
#define NETSPEED 9

#define MAXMONSTERSPERLEVEL	20

#define MAXLETTERHEIGHT 100

#define MAXPTYPES 3
#define MAXFRAMES 8

#define TILEH 16
#define TILEW 16

#define LEVELW 40
#define LEVELH 30 

#define BUFLEN 512
#define SMALLBUFLEN 32

#define FALLSPEED 4

#define B_TRUE	-1
#define B_FALSE	0


typedef struct tiletype_s {
	int id;
	char name[SMALLBUFLEN];
	int lowness[TILEW];
	int solid;
	SDL_Surface *img;
	struct tiletype_s *next;
	struct tiletype_s *prev;
} tiletype_t;
tiletype_t *tiletype;

typedef struct initialmonster_s {
	int startx;
	int starty;
	int id;
} initialmonster_t;

typedef struct text_s {
	int x,y;
	int size;
	int maxsize;
	int state;
	char txt[BUFLEN];
	SDL_Rect bgarea;
	SDL_Surface *bg;
	SDL_Surface *img;
	struct text_s *next;
	struct text_s *prev;
} text_t;

typedef struct level_s {
	int id;
	int bgtileid;
	char name[SMALLBUFLEN];
	int map[LEVELW*LEVELH];
	struct level_s *next;
	struct level_s *prev;
	int p1x;	 /* player 1 start pos */
	int p1y;
	int nummonsters;
	initialmonster_t initm[MAXMONSTERSPERLEVEL];
	
} level_t;
level_t *level;

typedef struct sprite_s {
	int id;
	double speed;
	int falling;
	int fallspeed;
	int jumping;
	int jumpdir;

	int dead;
	int bounces;

	struct sprite_s *caughtby;
	int caughtstate;

	int jumpspeed;
	int slamming;
	double slamangle;
	int netting;
	int netcaught;
	int netmax;
	int netspeed;
	int netdir;
	int netlen;
	int nety;
	int netxstart;
	int netystart;

	int moved;

	double xs,ys;

	double x,y;
	int dir;
	SDL_Surface *img;
	SDL_Surface *netbg;
	struct sprite_s *next;
	struct sprite_s *prev;
	char name[SMALLBUFLEN];
} sprite_t;

typedef struct imageset_s {
	SDL_Surface *img[MAXFRAMES*2];
	int numimages;
} imageset_t;
imageset_t imageset[MAXPTYPES];


void cleanup(void);
int addtext(int x, int y, int size, char *string);
void drawtext(void);
void movetext(void);
void killtext(text_t *t);
void removetext(void);
int addsprite(int id,int x, int y, char *name);
int loadtiletypes(char *filename);
tiletype_t *gettileat(int pixx,int pixy, int *tilex, int *tiley);
int loadlevel(int lnum);
int loadsprites(void);
int loadimagesets(void);
void drawlevel(void);
void drawtile(int x, int y);
void removesprite(sprite_t *s);
void removenetting(sprite_t *s);
void drawsprite(sprite_t *s);
void drawnetting(sprite_t *s);
void dogravity(sprite_t *s);
void dotileeffects(sprite_t *s);
int movex(sprite_t *s,double amt);
void movesprite(sprite_t *s);
int isonground(sprite_t *s);
int isongroundpoint(sprite_t *s, int x, int y);
int isonladder(sprite_t *s);
int isladderabove(sprite_t *s);
int isfruit(int id);
int ismonster(int id);
void killsprite(sprite_t *s);
void checkcollide(sprite_t *s);
double getspeed(int id);
void adjustheight(sprite_t *s);

#define S_NOTSOLID	0
#define S_SOLID		1
#define S_SLOPE		2

#define P_PLAYER	0
#define P_RAT		1
#define P_CHEESE	2

#define F_WALK1		0
#define F_JUMP		1
#define F_FALL		2
#define F_CAUGHT	3
#define F_DEAD		4
#define F_DEAD2		5
#define F_DEAD3		6
#define F_DEAD4		7

#define T_BLANK	0
#define T_LAND	1
#define T_SLOPEUP	2
#define T_SLOPEDOWN	3
#define T_FULL	4
#define T_SKY	5
#define T_LADDER	6
#define T_LADDERTOP	7
#define T_RIGHT	8
#define T_LEFT	9
#define T_SPIKES	10


inline void drawpixel16(SDL_Surface *screen, int x, int y, SDL_Color c);
inline void drawbox16(SDL_Surface *screen, int x1,int y1,int x2,int y2,SDL_Color *c,SDL_Color *fc);
void drawline16(SDL_Surface *screen, int x1, int y1, int x2, int y2, SDL_Color c);