// the interface the engine uses to run the gameplay module

struct entity;
struct extentity;
struct physent;
struct dynent;
struct selinfo;
struct VSlot;

#include <sauerlib/stream.hh>

#include "tools.hh"
#include "geom.hh"

namespace entities
{
    extern void editent(int i, bool local);
    extern const char *entnameinfo(entity &e);
    extern const char *entname(int i);
    extern int extraentinfosize();
    extern void writeent(entity &e, char *buf);
    extern void readent(entity &e, char *buf, int ver);
    extern float dropheight(entity &e);
    extern void fixentity(extentity &e);
    extern void entradius(extentity &e, bool color);
    extern bool mayattach(extentity &e);
    extern bool attachent(extentity &e, extentity &a);
    extern bool printent(extentity &e, char *buf, int len);
    extern extentity *newentity();
    extern void deleteentity(extentity *e);
    extern void clearents();
    extern vector<extentity *> &getents();
    extern const char *entmodel(const entity &e);
    extern void animatemapmodel(const extentity &e, int &anim, int &basetime);
}

namespace game
{
    extern void parseoptions(vector<const char *> &args);

    extern void gamedisconnect(bool cleanup);
    extern void connectfail();
    extern void gameconnect(bool _remote);
    extern bool allowedittoggle();
    extern void edittoggled(bool on);
    extern void writeclientinfo(stream *f);
    extern void toserver(char *text);
    extern void changemap(const char *name);
    extern void forceedit(const char *name);
    extern bool ispaused();
    extern int scaletime(int t);
    extern bool allowmouselook();

    extern const char *gameident();
    extern const char *gameconfig();
    extern const char *savedconfig();
    extern const char *restoreconfig();
    extern const char *defaultconfig();
    extern const char *autoexec();
    extern const char *savedservers();
    extern void loadconfigs();

    extern void updateworld();
    extern void initclient();
    extern void physicstrigger(physent *d, bool local, int floorlevel, int waterlevel, int material = 0);
    extern void edittrigger(const selinfo &sel, int op, int arg1 = 0, int arg2 = 0, int arg3 = 0, const VSlot *vs = nullptr);
    extern void vartrigger(ident *id);
    extern void dynentcollide(physent *d, physent *o, const vec &dir);
    extern const char *getclientmap();
    extern const char *getmapinfo();
    extern const char *getscreenshotinfo();
    extern void resetgamestate();
    extern void suicide(physent *d);
    extern void newmap(int size);
    extern void startmap(const char *name);
    extern void preload();
    extern float abovegameplayhud(int w, int h);
    extern void gameplayhud(int w, int h);
    extern bool canjump();
    extern bool cancrouch();
    extern bool allowmove(physent *d);
    extern dynent *iterdynents(int i);
    extern int numdynents();
    extern void rendergame();
    extern void renderavatar();
    extern void renderplayerpreview(int model, int color, int weap);
    extern int numanims();
    extern void findanims(const char *pattern, vector<int> &anims);
    extern void writegamedata(vector<char> &extras);
    extern void readgamedata(vector<char> &extras);
    extern float clipconsole(float w, float h);
    extern void setupcamera();
    extern bool allowthirdperson();
    extern bool detachcamera();
    extern bool collidecamera();
    extern void adddynlights();
    extern void particletrack(physent *owner, vec &o, vec &d);
    extern void dynlighttrack(physent *owner, vec &o, vec &hud);
    extern bool needminimap();
}