mirror of
https://github.com/DrBeef/Raze.git
synced 2024-11-16 17:31:27 +00:00
c7d97d55ec
There's only one RETURN value on the C side (g_RETURN), which is also referenced from Lua. Upon entering an event, its value takes on the per-event default one, and its value when the event code finishes is passed back to the game. Independently of that, its value is always saved and restored across event calls. git-svn-id: https://svn.eduke32.com/eduke32@3601 1a8010ca-5511-0410-912e-c29ae57300e0
536 lines
14 KiB
C
536 lines
14 KiB
C
/* The Lunatic Interpreter, part of EDuke32. Game-side stuff. */
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#include <stdint.h>
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#include <lualib.h>
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#include <lauxlib.h>
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#include "build.h" // printext256
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#include "lunatic_game.h"
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#include "osd.h"
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#include "gamedef.h" // EventNames[]
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L_State g_ElState;
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// this serves two purposes:
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// the values as booleans and the addresses as keys to the Lua registry
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uint8_t g_elEvents[MAXEVENTS];
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// same thing for actors:
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el_actor_t g_elActors[MAXTILES];
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// Set to 1 on error in event.
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int32_t g_elEventError;
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int32_t g_elCallDepth = 0;
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int32_t g_RETURN;
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// for timing events and actors
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uint32_t g_eventCalls[MAXEVENTS], g_actorCalls[MAXTILES];
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double g_eventTotalMs[MAXEVENTS], g_actorTotalMs[MAXTILES], g_actorMinMs[MAXTILES], g_actorMaxMs[MAXTILES];
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// Used as Lua registry key to the tweak_traceback_msg() function, set to 1 if
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// such a function has been registered.
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static uint8_t g_tweakTracebackMsg = 0;
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// forward-decls...
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static int32_t SetEvent_CF(lua_State *L);
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static int32_t SetActor_CF(lua_State *L);
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// in lpeg.o
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extern int luaopen_lpeg(lua_State *L);
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typedef struct {
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uint32_t x, y, z, c;
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} rng_jkiss_t;
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// See: Good Practice in (Pseudo) Random Number Generation for
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// Bioinformatics Applications, by David Jones
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ATTRIBUTE_OPTIMIZE("O2")
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uint32_t rand_jkiss_u32(rng_jkiss_t *s)
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{
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uint64_t t;
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s->x = 314527869 * s->x + 1234567;
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s->y ^= s->y << 5; s->y ^= s->y >> 7; s->y ^= s->y << 22;
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t = 4294584393ULL * s->z + s->c; s->c = t >> 32; s->z = t;
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return s->x + s->y + s->z;
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}
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ATTRIBUTE_OPTIMIZE("O2")
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double rand_jkiss_dbl(rng_jkiss_t *s)
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{
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double x;
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unsigned int a, b;
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a = rand_jkiss_u32(s) >> 6; /* Upper 26 bits */
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b = rand_jkiss_u32(s) >> 5; /* Upper 27 bits */
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x = (a * 134217728.0 + b) / 9007199254740992.0;
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return x;
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}
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void El_PrintTimes(void)
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{
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int32_t i, maxlen=0;
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char buf[32];
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const char nn = Bstrlen("EVENT_");
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for (i=0; i<MAXEVENTS; i++)
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{
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int32_t len = Bstrlen(EventNames[i]+nn);
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Bassert(len < (int32_t)sizeof(buf));
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maxlen = max(len, maxlen);
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}
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OSD_Printf("{\n {\n");
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OSD_Printf(" -- event times, [event]={ total calls, total time [ms], mean time/call [us] }\n");
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for (i=0; i<MAXEVENTS; i++)
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if (g_eventCalls[i])
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{
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int32_t n=Bsprintf(buf, "%s", EventNames[i]+nn);
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for (; n<maxlen; n++)
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buf[n] = ' ';
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buf[maxlen] = 0;
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OSD_Printf(" [%s]={ %8d, %9.3f, %9.3f },\n",
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buf, g_eventCalls[i], g_eventTotalMs[i],
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1000*g_eventTotalMs[i]/g_eventCalls[i]);
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}
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OSD_Printf(" },\n\n {\n");
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OSD_Printf(" -- actor times, [tile]={ total calls, total time [ms], {min,mean,max} time/call [us] }\n");
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for (i=0; i<MAXTILES; i++)
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if (g_actorCalls[i])
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OSD_Printf(" [%5d]={ %8d, %9.3f, %9.3f, %9.3f, %9.3f },\n",
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i, g_actorCalls[i], g_actorTotalMs[i],
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1000*g_actorMinMs[i],
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1000*g_actorTotalMs[i]/g_actorCalls[i],
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1000*g_actorMaxMs[i]);
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OSD_Printf(" },\n}\n");
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}
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////////// ERROR REPORTING //////////
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#define EL_MAXERRORS 20
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static int32_t el_numErrors=0, el_tooMuchErrors;
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static char *el_errorMsgs[EL_MAXERRORS];
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// Compare against all other error messages.
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// Strictly seen, this is quadratic-time, but EL_MAXERRORS is small and
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// errors should be fixed anyway.
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static int32_t cmp_against_others(const char *str, int32_t slen)
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{
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int32_t i;
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for (i=0; i<el_numErrors; i++)
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if (!Bstrncmp(str, el_errorMsgs[i], slen))
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return 1;
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return 0;
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}
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static void El_OnError(const char *str)
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{
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if (!el_tooMuchErrors)
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{
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char *errstr = NULL;
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const char *nl = Bstrchr(str, '\n');
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// First, check whether the error message matches an already saved one
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if (nl)
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{
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// cut off string after the newline
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if (cmp_against_others(str, nl-str))
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return;
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}
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else
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{
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// save string fully
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if (cmp_against_others(str, Bstrlen(str)))
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return;
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}
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// If the (EL_MAXERRORS+1)'th distinct error appeared, we have too many.
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if (el_numErrors==EL_MAXERRORS)
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{
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el_tooMuchErrors = 1;
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return;
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}
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// Otherwise, allocate storage for the potentially clipped error string...
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if (nl)
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{
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errstr = Bmalloc(nl-str+1);
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if (errstr)
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{
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Bmemcpy(errstr, str, nl-str);
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errstr[nl-str] = 0;
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}
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}
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else
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{
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errstr = Bstrdup(str);
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}
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// ...and save it:
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if (errstr)
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el_errorMsgs[el_numErrors++] = errstr;
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}
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}
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static void El_OnOutOfMem(void)
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{
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extern void G_GameExit(const char *msg);
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G_GameExit("Out of memory in Lunatic.");
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}
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void El_ClearErrors(void)
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{
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int32_t i;
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for (i=0; i<EL_MAXERRORS; i++)
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{
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Bfree(el_errorMsgs[i]);
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el_errorMsgs[i] = NULL;
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}
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el_numErrors = el_tooMuchErrors = 0;
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}
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void El_DisplayErrors(void)
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{
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int32_t i;
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for (i=0; i<el_numErrors; i++)
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printext256(8, 8+8*i, 242, 0, el_errorMsgs[i], 0);
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if (el_tooMuchErrors)
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printext256(8, 8+8*EL_MAXERRORS, 242, 0, "(more distinct errors ...)", 0);
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}
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////////// STATE CREATION/DESTRUCTIION //////////
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static int our_traceback_CF(lua_State *L)
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{
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Bassert(lua_gettop(L)==1);
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if (lua_type(L, 1)==LUA_TBOOLEAN)
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{
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lua_pushvalue(L, 1); // duplicate it
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return 1; // and tell Lua to return it
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}
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Bassert(lua_type(L, 1)==LUA_TSTRING);
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// call debug.traceback with the string
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L_PushDebugTraceback(L);
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lua_pushvalue(L, 1);
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lua_call(L, 1, 1);
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Bassert(lua_gettop(L)==2); // Lua will pop off args
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if (g_tweakTracebackMsg)
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{
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// Get tweak_traceback_msg() onto the stack.
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lua_pushlightuserdata(L, &g_tweakTracebackMsg);
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lua_gettable(L, LUA_REGISTRYINDEX);
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lua_pushvalue(L, -2); // push copy of error message string
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Bassert(lua_type(L, -1)==LUA_TSTRING);
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// Call tweak_traceback_msg(). CAREFUL, it's unprotected!
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lua_call(L, 1, 1);
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}
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return 1;
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}
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// Registers a function: str = tweak_traceback_msg(str)
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static int32_t SetTweakTracebackMsg_CF(lua_State *L)
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{
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Bassert(lua_gettop(L)==1);
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L_CheckAndRegisterFunction(L, &g_tweakTracebackMsg);
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g_tweakTracebackMsg = 1;
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return 0;
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}
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////// Lua C-API interfaces for C game functions that may call events.
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// http://www.freelists.org/post/luajit/intermitten-lua-pcall-crash-on-x86-64-linux,1
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// Some of these are duplicate declarations:
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extern void P_AddWeaponMaybeSwitchI(int32_t snum, int32_t weap);
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extern void P_CheckWeaponI(int32_t snum);
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extern int32_t A_ShootWithZvel(int32_t i, int32_t atwith, int32_t override_zvel);
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extern int32_t A_Spawn(int32_t j, int32_t pn);
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extern void VM_FallSprite(int32_t i);
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extern int32_t VM_ResetPlayer2(int32_t snum);
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extern void A_RadiusDamage(int32_t i, int32_t r, int32_t, int32_t, int32_t, int32_t);
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extern void G_OperateSectors(int32_t sn, int32_t ii);
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extern void G_OperateActivators(int32_t low,int32_t snum);
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extern int32_t A_InsertSprite(int32_t whatsect,int32_t s_x,int32_t s_y,int32_t s_z,int32_t s_pn,int32_t s_s,
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int32_t s_xr,int32_t s_yr,int32_t s_a,int32_t s_ve,int32_t s_zv,int32_t s_ow,int32_t s_ss);
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extern void A_AddToDeleteQueue(int32_t i);
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extern int32_t A_PlaySound(uint32_t num, int32_t i);
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#define LARG(index) lua_tointeger(L, index)
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#define ONE_ARG LARG(1)
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#define TWO_ARGS LARG(1), LARG(2)
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#define THREE_ARGS LARG(1), LARG(2), LARG(3)
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#define CALL_WITH_RET(Name, ...) \
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int32_t ret = Name(__VA_ARGS__); \
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lua_pushinteger(L, ret); \
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return 1
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#define CALL_WITHOUT_RET(Name, ...) \
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Name(__VA_ARGS__); \
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return 0
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#define DEFINE_RET_CFUNC(Name, ...) \
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static int32_t Name##_CF(lua_State *L) \
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{ \
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CALL_WITH_RET(Name, __VA_ARGS__); \
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}
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#define DEFINE_VOID_CFUNC(Name, ...) \
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static int32_t Name##_CF(lua_State *L) \
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{ \
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CALL_WITHOUT_RET(Name, __VA_ARGS__); \
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}
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// NOTE: player struct -> player index -> player struct ugliness because
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// pointers to FFI cdata apparently can't be reliably passed via lua_getpointer().
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// Not to mention that lua_getpointer() returns _const_ void*.
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DEFINE_VOID_CFUNC(P_AddWeaponMaybeSwitchI, TWO_ARGS)
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DEFINE_VOID_CFUNC(P_CheckWeaponI, ONE_ARG)
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DEFINE_RET_CFUNC(A_ShootWithZvel, THREE_ARGS)
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DEFINE_RET_CFUNC(A_Spawn, TWO_ARGS)
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DEFINE_VOID_CFUNC(VM_FallSprite, ONE_ARG)
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DEFINE_RET_CFUNC(VM_ResetPlayer2, ONE_ARG)
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DEFINE_VOID_CFUNC(A_RadiusDamage, LARG(1), LARG(2), LARG(3), LARG(4), LARG(5), LARG(6))
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DEFINE_VOID_CFUNC(G_OperateSectors, TWO_ARGS)
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DEFINE_VOID_CFUNC(G_OperateActivators, TWO_ARGS)
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DEFINE_RET_CFUNC(A_InsertSprite, LARG(1), LARG(2), LARG(3), LARG(4), LARG(5), LARG(6),
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LARG(7), LARG(8), LARG(9), LARG(10), LARG(11), LARG(12), LARG(13))
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DEFINE_VOID_CFUNC(A_AddToDeleteQueue, ONE_ARG)
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DEFINE_RET_CFUNC(A_PlaySound, TWO_ARGS)
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#define CFUNC_REG(Name) { #Name, Name##_CF }
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struct { const char *name; lua_CFunction func; } cfuncs[] =
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{
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CFUNC_REG(P_AddWeaponMaybeSwitchI),
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CFUNC_REG(P_CheckWeaponI),
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CFUNC_REG(A_ShootWithZvel),
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CFUNC_REG(A_Spawn),
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CFUNC_REG(VM_FallSprite),
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CFUNC_REG(VM_ResetPlayer2),
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CFUNC_REG(A_RadiusDamage),
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CFUNC_REG(G_OperateSectors),
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CFUNC_REG(G_OperateActivators),
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CFUNC_REG(A_InsertSprite),
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CFUNC_REG(A_Spawn),
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CFUNC_REG(A_AddToDeleteQueue),
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CFUNC_REG(A_PlaySound),
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};
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// Creates a global table "CF" containing the functions from cfuncs[].
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static void El_PushCFunctions(lua_State *L)
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{
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int32_t i;
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lua_newtable(L);
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for (i=0; i<(signed)sizeof(cfuncs)/(signed)sizeof(cfuncs[0]); i++)
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{
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lua_pushstring(L, cfuncs[i].name);
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lua_pushcfunction(L, cfuncs[i].func);
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lua_settable(L, -3);
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}
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lua_setglobal(L, "CF");
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}
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//////
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static void El_StateSetup(lua_State *L)
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{
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luaopen_lpeg(L);
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lua_pop(L, lua_gettop(L)); // pop off whatever lpeg leaves on the stack
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// create misc. global functions in the Lua state
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lua_pushcfunction(L, SetEvent_CF);
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lua_setglobal(L, "gameevent_internal");
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lua_pushcfunction(L, SetActor_CF);
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lua_setglobal(L, "gameactor_internal");
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lua_pushcfunction(L, SetTweakTracebackMsg_CF);
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lua_setglobal(L, "set_tweak_traceback_internal");
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El_PushCFunctions(L);
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Bassert(lua_gettop(L)==0);
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// This is for engine-side Lua:
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lua_pushcfunction(L, &our_traceback_CF);
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}
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// 0: success, <0: failure
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int32_t El_CreateState(L_State *estate, const char *name)
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{
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int32_t i;
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for (i=0; i<MAXTILES; i++)
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g_actorMinMs[i] = 1e308;
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L_ErrorFunc = El_OnError;
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L_OutOfMemFunc = El_OnOutOfMem;
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return L_CreateState(estate, name, &El_StateSetup);
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}
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void El_DestroyState(L_State *estate)
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{
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L_DestroyState(estate);
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}
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////////// Lua_CFunctions //////////
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// gameevent(EVENT_..., lua_function)
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static int32_t SetEvent_CF(lua_State *L)
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{
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int32_t eventidx;
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Bassert(lua_gettop(L) == 2);
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eventidx = luaL_checkint(L, 1);
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Bassert((unsigned)eventidx < MAXEVENTS);
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L_CheckAndRegisterFunction(L, &g_elEvents[eventidx]);
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g_elEvents[eventidx] = 1;
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return 0;
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}
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// gameactor(actortile, strength, act, mov, movflags, lua_function)
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static int32_t SetActor_CF(lua_State *L)
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{
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int32_t actortile, strength, movflags;
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const con_action_t *act;
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const con_move_t *mov;
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el_actor_t *a;
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Bassert(lua_gettop(L) == 6);
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actortile = luaL_checkint(L, 1);
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Bassert((unsigned)actortile < MAXTILES);
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strength = luaL_checkint(L, 2);
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movflags = luaL_checkint(L, 5);
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act = lua_topointer(L, 3);
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mov = lua_topointer(L, 4);
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a = &g_elActors[actortile];
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L_CheckAndRegisterFunction(L, a);
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a->haveit = 1;
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a->strength = strength;
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a->movflags = movflags;
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Bmemcpy(&a->act, act, sizeof(con_action_t));
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Bmemcpy(&a->mov, mov, sizeof(con_move_t));
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return 0;
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}
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//////////////////////////////
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static int32_t call_regd_function3(lua_State *L, void *keyaddr,
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int32_t iActor, int32_t iPlayer, int32_t lDist)
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{
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int32_t i, haveerr;
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#if !defined NDEBUG
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int32_t top = lua_gettop(L);
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#endif
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lua_pushcfunction(L, &our_traceback_CF);
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// get the Lua function from the registry
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lua_pushlightuserdata(L, keyaddr);
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lua_gettable(L, LUA_REGISTRYINDEX);
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lua_pushinteger(L, iActor);
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lua_pushinteger(L, iPlayer);
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lua_pushinteger(L, lDist);
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// -- call it! --
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i = lua_pcall(L, 3, 0, -5);
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haveerr = (i != 0);
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Bassert(lua_iscfunction(L, -1-haveerr));
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lua_remove(L, -1-haveerr);
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Bassert(lua_gettop(L) == top+(i!=0));
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return i;
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}
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static int32_t g_eventIdx = 0;
|
|
static void El_EventErrorPrint(const char *errmsg)
|
|
{
|
|
OSD_Printf(OSD_ERROR "event \"%s\" runtime error: %s\n",
|
|
EventNames[g_eventIdx], errmsg);
|
|
}
|
|
|
|
int32_t El_CallEvent(L_State *estate, int32_t eventidx, int32_t iActor, int32_t iPlayer, int32_t lDist, int32_t *iReturn)
|
|
{
|
|
// XXX: estate must be the one where the events were registered...
|
|
// make a global?
|
|
|
|
lua_State *const L = estate->L;
|
|
int32_t i;
|
|
|
|
const int32_t o_RETURN = g_RETURN;
|
|
g_RETURN = *iReturn;
|
|
|
|
g_elCallDepth++;
|
|
i = call_regd_function3(L, &g_elEvents[eventidx], iActor, iPlayer, lDist);
|
|
g_elCallDepth--;
|
|
|
|
*iReturn = g_RETURN;
|
|
g_RETURN = o_RETURN;
|
|
|
|
if (i != 0)
|
|
{
|
|
g_elEventError = 1;
|
|
g_eventIdx = eventidx;
|
|
return L_HandleError(L, i, &El_EventErrorPrint);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int32_t g_actorTile, g_iActor;
|
|
static void El_ActorErrorPrint(const char *errmsg)
|
|
{
|
|
OSD_Printf(OSD_ERROR "actor %d (sprite %d) runtime error: %s\n",
|
|
g_actorTile, g_iActor, errmsg);
|
|
}
|
|
|
|
int32_t El_CallActor(L_State *estate, int32_t actortile, int32_t iActor, int32_t iPlayer, int32_t lDist)
|
|
{
|
|
lua_State *const L = estate->L;
|
|
int32_t i;
|
|
|
|
g_elCallDepth++;
|
|
i = call_regd_function3(L, &g_elActors[actortile], iActor, iPlayer, lDist);
|
|
g_elCallDepth--;
|
|
|
|
if (i != 0)
|
|
{
|
|
g_actorTile = actortile;
|
|
g_iActor = iActor;
|
|
return L_HandleError(L, i, &El_ActorErrorPrint);
|
|
}
|
|
|
|
return 0;
|
|
}
|