2926166ce6
Lua is going to be used for both scene description (it will also provide a YAML importer) and some future expansion in the code. Expect some fun surprises! (just playing with lua on the main app for now)
51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
/*
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* DoRayMe - a quick and dirty Raytracer
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*
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* Main app
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*
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* Created by Manoël Trapier
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* Copyright (c) 2020 986-Studio.
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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extern "C" {
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#include <lua.h>
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#include <lauxlib.h>
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#include <lualib.h>
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}
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static int l_sin (lua_State *L) {
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double d = luaL_checknumber(L, 1); /* get argument */
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lua_pushnumber(L, sin(d)); /* push result */
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return 1; /* number of results */
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}
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int main(int argc, char *argv[])
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{
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char buff[256];
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int error;
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lua_State *L = luaL_newstate(); /* opens Lua */
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luaL_openlibs(L); /* opens the basic library */
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lua_pushcfunction(L, l_sin);
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lua_setglobal(L, "mysin");
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printf("[0]>");
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while (fgets(buff, sizeof(buff), stdin) != NULL)
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{
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error = luaL_loadstring(L, buff) || lua_pcall(L, 0, LUA_MULTRET, 0);
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if (error)
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{
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fprintf(stderr, "%s\n", lua_tostring(L, -1));
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lua_pop(L, 1); /* pop error message from the stack */
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}
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printf("[%d]>", lua_gettop(L));
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}
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lua_close(L);
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return 0;
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} |