// script binding functionality enum { ID_VAR, ID_FVAR, ID_SVAR, ID_COMMAND, ID_CCOMMAND, ID_ALIAS }; enum { NO_OVERRIDE = INT_MAX, OVERRIDDEN = 0 }; enum { IDF_PERSIST = 1<<0, IDF_OVERRIDE = 1<<1, IDF_HEX = 1<<2, IDF_READONLY = 1<<3 }; struct identstack { char *action; identstack *next; }; union identval { int i; // ID_VAR float f; // ID_FVAR char *s; // ID_SVAR }; union identvalptr { int *i; // ID_VAR float *f; // ID_FVAR char **s; // ID_SVAR }; struct ident { int type; // one of ID_* above const char *name; union { int minval; // ID_VAR float minvalf; // ID_FVAR }; union { int maxval; // ID_VAR float maxvalf; // ID_FVAR }; int override; // either NO_OVERRIDE, OVERRIDDEN, or value union { void (__cdecl *fun)(); // ID_VAR, ID_COMMAND, ID_CCOMMAND identstack *stack; // ID_ALIAS }; union { const char *narg; // ID_COMMAND, ID_CCOMMAND char *action; // ID_ALIAS identval val; // ID_VAR, ID_FVAR, ID_SVAR }; union { void *self; // ID_COMMAND, ID_CCOMMAND char *isexecuting; // ID_ALIAS identval overrideval; // ID_VAR, ID_FVAR, ID_SVAR }; identvalptr storage; // ID_VAR, ID_FVAR, ID_SVAR int flags; ident() {} // ID_VAR ident(int t, const char *n, int m, int c, int x, int *s, void *f = NULL, int flags = 0) : type(t), name(n), minval(m), maxval(x), override(NO_OVERRIDE), fun((void (__cdecl *)())f), flags(flags | (m > x ? IDF_READONLY : 0)) { val.i = c; storage.i = s; } // ID_FVAR ident(int t, const char *n, float m, float c, float x, float *s, void *f = NULL, int flags = 0) : type(t), name(n), minvalf(m), maxvalf(x), override(NO_OVERRIDE), fun((void (__cdecl *)())f), flags(flags | (m > x ? IDF_READONLY : 0)) { val.f = c; storage.f = s; } // ID_SVAR ident(int t, const char *n, char *c, char **s, void *f = NULL, int flags = 0) : type(t), name(n), override(NO_OVERRIDE), fun((void (__cdecl *)())f), flags(flags) { val.s = c; storage.s = s; } // ID_ALIAS ident(int t, const char *n, char *a, int flags) : type(t), name(n), override(NO_OVERRIDE), stack(NULL), action(a), isexecuting(NULL), flags(flags) {} // ID_COMMAND, ID_CCOMMAND ident(int t, const char *n, const char *narg, void *f = NULL, void *s = NULL, int flags = 0) : type(t), name(n), override(NO_OVERRIDE), fun((void (__cdecl *)(void))f), narg(narg), self(s), flags(flags) {} virtual ~ident() {} ident &operator=(const ident &o) { memcpy(this, &o, sizeof(ident)); return *this; } // force vtable copy, ugh virtual void changed() { if(fun) fun(); } }; extern void addident(const char *name, ident *id); extern const char *intstr(int v); extern void intret(int v); extern const char *floatstr(float v); extern void floatret(float v); extern void result(const char *s); static inline int parseint(const char *s) { return int(strtol(s, NULL, 0)); } static inline float parsefloat(const char *s) { // not all platforms (windows) can parse hexadecimal integers via strtod char *end; double val = strtod(s, &end); return val || end==s || (*end!='x' && *end!='X') ? float(val) : float(parseint(s)); } // nasty macros for registering script functions, abuses globals to avoid excessive infrastructure #define COMMANDN(name, fun, nargs) static bool __dummy_##fun = addcommand(#name, (void (*)())fun, nargs) #define COMMAND(name, nargs) COMMANDN(name, name, nargs) #define _VAR(name, global, min, cur, max, persist) int global = variable(#name, min, cur, max, &global, NULL, persist) #define VARN(name, global, min, cur, max) _VAR(name, global, min, cur, max, 0) #define VARNP(name, global, min, cur, max) _VAR(name, global, min, cur, max, IDF_PERSIST) #define VARNR(name, global, min, cur, max) _VAR(name, global, min, cur, max, IDF_OVERRIDE) #define VAR(name, min, cur, max) _VAR(name, name, min, cur, max, 0) #define VARP(name, min, cur, max) _VAR(name, name, min, cur, max, IDF_PERSIST) #define VARR(name, min, cur, max) _VAR(name, name, min, cur, max, IDF_OVERRIDE) #define _VARF(name, global, min, cur, max, body, persist) void var_##name(); int global = variable(#name, min, cur, max, &global, var_##name, persist); void var_##name() { body; } #define VARFN(name, global, min, cur, max, body) _VARF(name, global, min, cur, max, body, 0) #define VARF(name, min, cur, max, body) _VARF(name, name, min, cur, max, body, 0) #define VARFP(name, min, cur, max, body) _VARF(name, name, min, cur, max, body, IDF_PERSIST) #define VARFR(name, min, cur, max, body) _VARF(name, name, min, cur, max, body, IDF_OVERRIDE) #define _HVAR(name, global, min, cur, max, persist) int global = variable(#name, min, cur, max, &global, NULL, persist | IDF_HEX) #define HVARN(name, global, min, cur, max) _HVAR(name, global, min, cur, max, 0) #define HVARNP(name, global, min, cur, max) _HVAR(name, global, min, cur, max, IDF_PERSIST) #define HVARNR(name, global, min, cur, max) _HVAR(name, global, min, cur, max, IDF_OVERRIDE) #define HVAR(name, min, cur, max) _HVAR(name, name, min, cur, max, 0) #define HVARP(name, min, cur, max) _HVAR(name, name, min, cur, max, IDF_PERSIST) #define HVARR(name, min, cur, max) _HVAR(name, name, min, cur, max, IDF_OVERRIDE) #define _HVARF(name, global, min, cur, max, body, persist) void var_##name(); int global = variable(#name, min, cur, max, &global, var_##name, persist | IDF_HEX); void var_##name() { body; } #define HVARFN(name, global, min, cur, max, body) _HVARF(name, global, min, cur, max, body, 0) #define HVARF(name, min, cur, max, body) _HVARF(name, name, min, cur, max, body, 0) #define HVARFP(name, min, cur, max, body) _HVARF(name, name, min, cur, max, body, IDF_PERSIST) #define HVARFR(name, min, cur, max, body) _HVARF(name, name, min, cur, max, body, IDF_OVERRIDE) #define _FVAR(name, global, min, cur, max, persist) float global = fvariable(#name, min, cur, max, &global, NULL, persist) #define FVARN(name, global, min, cur, max) _FVAR(name, global, min, cur, max, 0) #define FVARNP(name, global, min, cur, max) _FVAR(name, global, min, cur, max, IDF_PERSIST) #define FVARNR(name, global, min, cur, max) _FVAR(name, global, min, cur, max, IDF_OVERRIDE) #define FVAR(name, min, cur, max) _FVAR(name, name, min, cur, max, 0) #define FVARP(name, min, cur, max) _FVAR(name, name, min, cur, max, IDF_PERSIST) #define FVARR(name, min, cur, max) _FVAR(name, name, min, cur, max, IDF_OVERRIDE) #define _FVARF(name, global, min, cur, max, body, persist) void var_##name(); float global = fvariable(#name, min, cur, max, &global, var_##name, persist); void var_##name() { body; } #define FVARFN(name, global, min, cur, max, body) _FVARF(name, global, min, cur, max, body, 0) #define FVARF(name, min, cur, max, body) _FVARF(name, name, min, cur, max, body, 0) #define FVARFP(name, min, cur, max, body) _FVARF(name, name, min, cur, max, body, IDF_PERSIST) #define FVARFR(name, min, cur, max, body) _FVARF(name, name, min, cur, max, body, IDF_OVERRIDE) #define _SVAR(name, global, cur, persist) char *global = svariable(#name, cur, &global, NULL, persist) #define SVARN(name, global, cur) _SVAR(name, global, cur, 0) #define SVARNP(name, global, cur) _SVAR(name, global, cur, IDF_PERSIST) #define SVARNR(name, global, cur) _SVAR(name, global, cur, IDF_OVERRIDE) #define SVAR(name, cur) _SVAR(name, name, cur, 0) #define SVARP(name, cur) _SVAR(name, name, cur, IDF_PERSIST) #define SVARR(name, cur) _SVAR(name, name, cur, IDF_OVERRIDE) #define _SVARF(name, global, cur, body, persist) void var_##name(); char *global = svariable(#name, cur, &global, var_##name, persist); void var_##name() { body; } #define SVARFN(name, global, cur, body) _SVARF(name, global, cur, body, 0) #define SVARF(name, cur, body) _SVARF(name, name, cur, body, 0) #define SVARFP(name, cur, body) _SVARF(name, name, cur, body, IDF_PERSIST) #define SVARFR(name, cur, body) _SVARF(name, name, cur, body, IDF_OVERRIDE) // new style macros, have the body inline, and allow binds to happen anywhere, even inside class constructors, and access the surrounding class #define _CCOMMAND(idtype, tv, n, g, proto, b) \ struct _ccmd_##n : ident \ { \ _ccmd_##n(void *self = NULL) : ident(idtype, #n, g, (void *)run, self) \ { \ addident(name, this); \ } \ static void run proto { b; } \ } __ccmd_##n tv #define CCOMMAND(n, g, proto, b) _CCOMMAND(ID_CCOMMAND, (this), n, g, proto, b) // anonymous inline commands, uses nasty template trick with line numbers to keep names unique #define _ICOMMAND(cmdname, name, nargs, proto, b) template struct cmdname; template<> struct cmdname<__LINE__> { static bool init; static void run proto; }; bool cmdname<__LINE__>::init = addcommand(name, (void (*)())cmdname<__LINE__>::run, nargs); void cmdname<__LINE__>::run proto \ { b; } #define ICOMMANDNAME(name) _icmd_##name #define ICOMMAND(name, nargs, proto, b) _ICOMMAND(ICOMMANDNAME(name), #name, nargs, proto, b) #define ICOMMANDSNAME _icmds_ #define ICOMMANDS(name, nargs, proto, b) _ICOMMAND(ICOMMANDSNAME, name, nargs, proto, b) #define _IVAR(n, m, c, x, b, p) \ struct var_##n : ident \ { \ var_##n() : ident(ID_VAR, #n, m, c, x, &val.i, NULL, p) \ { \ addident(name, this); \ } \ int operator()() { return val.i; } \ b \ } n #define IVAR(n, m, c, x) _IVAR(n, m, c, x, , 0) #define IVARF(n, m, c, x, b) _IVAR(n, m, c, x, void changed() { b; }, 0) #define IVARP(n, m, c, x) _IVAR(n, m, c, x, , IDF_PERSIST) #define IVARR(n, m, c, x) _IVAR(n, m, c, x, , IDF_OVERRIDE) #define IVARFP(n, m, c, x, b) _IVAR(n, m, c, x, void changed() { b; }, IDF_PERSIST) #define IVARFR(n, m, c, x, b) _IVAR(n, m, c, x, void changed() { b; }, IDF_OVERRIDE)