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Add callback parameter for core.emerge_area()

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This commit is contained in:
kwolekr 2015-10-30 02:48:37 -04:00
parent 5c3546e459
commit c2b5da735e
9 changed files with 166 additions and 22 deletions
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47
src/script/lua_api/l_env.cpp
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@ -83,6 +83,21 @@ void LuaABM::trigger(ServerEnvironment *env, v3s16 p, MapNode n,
lua_pop(L, 1); // Pop error handler
}
void LuaEmergeAreaCallback(v3s16 blockpos, EmergeAction action, void *param)
{
ScriptCallbackState *state = (ScriptCallbackState *)param;
assert(state != NULL);
assert(state->script != NULL);
assert(state->refcount > 0);
state->refcount--;
state->script->on_emerge_area_completion(blockpos, action, state);
if (state->refcount == 0)
delete state;
}
// Exported functions
// set_node(pos, node)
@ -748,24 +763,46 @@ int ModApiEnvMod::l_line_of_sight(lua_State *L)
return 1;
}
// emerge_area(p1, p2)
// emerge mapblocks in area p1..p2
// emerge_area(p1, p2, [callback, context])
// emerge mapblocks in area p1..p2, calls callback with context upon completion
int ModApiEnvMod::l_emerge_area(lua_State *L)
{
GET_ENV_PTR;
EmergeCompletionCallback callback = NULL;
ScriptCallbackState *state = NULL;
EmergeManager *emerge = getServer(L)->getEmergeManager();
v3s16 bpmin = getNodeBlockPos(read_v3s16(L, 1));
v3s16 bpmax = getNodeBlockPos(read_v3s16(L, 2));
sortBoxVerticies(bpmin, bpmax);
size_t num_blocks = VoxelArea(bpmin, bpmax).getVolume();
assert(num_blocks != 0);
if (lua_isfunction(L, 3)) {
callback = LuaEmergeAreaCallback;
lua_pushvalue(L, 3);
int callback_ref = luaL_ref(L, LUA_REGISTRYINDEX);
lua_pushvalue(L, 4);
int args_ref = luaL_ref(L, LUA_REGISTRYINDEX);
state = new ScriptCallbackState;
state->script = getServer(L)->getScriptIface();
state->callback_ref = callback_ref;
state->args_ref = args_ref;
state->refcount = num_blocks;
state->origin = getScriptApiBase(L)->getOrigin();
}
for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
for (s16 x = bpmin.X; x <= bpmax.X; x++) {
v3s16 chunkpos(x, y, z);
emerge->enqueueBlockEmerge(PEER_ID_INEXISTENT, chunkpos, false, true);
emerge->enqueueBlockEmergeEx(v3s16(x, y, z), PEER_ID_INEXISTENT,
BLOCK_EMERGE_ALLOW_GEN | BLOCK_EMERGE_FORCE_QUEUE, callback, state);
}
return 0;