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Async environment for mods to do concurrent tasks (#11131)

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This commit is contained in:
sfan5 2022-05-02 20:55:04 +02:00
parent 663c936428
commit e7659883cc
38 changed files with 1646 additions and 48 deletions
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33
src/script/lua_api/l_vmanip.cpp
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@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_internal.h"
#include "common/c_content.h"
#include "common/c_converter.h"
#include "common/c_packer.h"
#include "emerge.h"
#include "environment.h"
#include "map.h"
@ -45,6 +46,8 @@ int LuaVoxelManip::l_read_from_map(lua_State *L)
LuaVoxelManip *o = checkobject(L, 1);
MMVManip *vm = o->vm;
if (vm->isOrphan())
return 0;
v3s16 bp1 = getNodeBlockPos(check_v3s16(L, 2));
v3s16 bp2 = getNodeBlockPos(check_v3s16(L, 3));
@ -429,6 +432,34 @@ LuaVoxelManip *LuaVoxelManip::checkobject(lua_State *L, int narg)
return *(LuaVoxelManip **)ud; // unbox pointer
}
void *LuaVoxelManip::packIn(lua_State *L, int idx)
{
LuaVoxelManip *o = checkobject(L, idx);
if (o->is_mapgen_vm)
throw LuaError("nope");
return o->vm->clone();
}
void LuaVoxelManip::packOut(lua_State *L, void *ptr)
{
MMVManip *vm = reinterpret_cast<MMVManip*>(ptr);
if (!L) {
delete vm;
return;
}
// Associate vmanip with map if the Lua env has one
Environment *env = getEnv(L);
if (env)
vm->reparent(&(env->getMap()));
LuaVoxelManip *o = new LuaVoxelManip(vm, false);
*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
luaL_getmetatable(L, className);
lua_setmetatable(L, -2);
}
void LuaVoxelManip::Register(lua_State *L)
{
lua_newtable(L);
@ -455,6 +486,8 @@ void LuaVoxelManip::Register(lua_State *L)
// Can be created from Lua (VoxelManip())
lua_register(L, className, create_object);
script_register_packer(L, className, packIn, packOut);
}
const char LuaVoxelManip::className[] = "VoxelManip";