diff options
Diffstat (limited to 'mesecons/util.lua')
| -rw-r--r-- | mesecons/util.lua | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/mesecons/util.lua b/mesecons/util.lua index 234775b..7fb95cc 100644 --- a/mesecons/util.lua +++ b/mesecons/util.lua @@ -343,7 +343,7 @@ function mesecon.vm_commit() if tbl.dirty then local vm = tbl.vm vm:set_data(tbl.data) - vm:write_to_map() + vm:write_to_map(tbl.update_light) vm:update_map() end end @@ -364,7 +364,7 @@ local function vm_get_or_create_entry(pos) local vm = minetest.get_voxel_manip(pos, pos) local min_pos, max_pos = vm:get_emerged_area() local va = VoxelArea:new{MinEdge = min_pos, MaxEdge = max_pos} - tbl = {vm = vm, va = va, data = vm:get_data(), param1 = vm:get_light_data(), param2 = vm:get_param2_data(), dirty = false} + tbl = {vm = vm, va = va, data = vm:get_data(), param1 = vm:get_light_data(), param2 = vm:get_param2_data(), dirty = false, update_light = false} vm_cache[hash] = tbl end return tbl @@ -388,8 +388,11 @@ end -- Sets a node’s name during a VoxelManipulator-based transaction. -- -- Existing param1, param2, and metadata are left alone. -function mesecon.vm_swap_node(pos, name) +-- +-- See mesecon.swap_node_force for documentation about get_update_light. +function mesecon.vm_swap_node(pos, name, get_update_light) local tbl = vm_get_or_create_entry(pos) + tbl.update_light = tbl.update_light or (get_update_light == nil or get_update_light(pos, name)) local index = tbl.va:indexp(pos) tbl.data[index] = minetest.get_content_id(name) tbl.dirty = true @@ -423,13 +426,15 @@ end -- Outside a VM transaction, if the mapblock is not loaded, it is pulled into -- the server’s main map data cache and then accessed from there. -- --- Inside a VM transaction, the transaction’s VM cache is used. +-- Inside a VM transaction, the transaction’s VM cache is used. If a third +-- argument is supplied, it may be called. If it returns false, the swap does +-- not necessitate a lighting update. -- -- This function can only be used to change the node’s name, not its parameters -- or metadata. -function mesecon.swap_node_force(pos, name) +function mesecon.swap_node_force(pos, name, get_update_light) if vm_cache then - return mesecon.vm_swap_node(pos, name) + return mesecon.vm_swap_node(pos, name, get_update_light) else -- This serves to both ensure the mapblock is loaded and also hand us -- the old node table so we can preserve param2. |