mtcontrib/homedecor_modpack
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rewrite the node stacking/expansion code, preventing a crash building on unknown nodes, and reduce table lookups and overall code

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This commit is contained in:
Tim
2015-01-22 15:19:50 +01:00
committed by Vanessa Ezekowitz
parent b4b281d9ea
commit 0a0c558c3a
4 changed files with 88 additions and 177 deletions
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81
homedecor/expansion.lua Normal file
View File

@@ -0,0 +1,81 @@
-- returns the correct buildable_to node
local function get_buildable_to(pointed_thing)
local pos = pointed_thing.under
local def = minetest.registered_nodes[minetest.get_node(pos).name]
if not def or not def.buildable_to then
pos = pointed_thing.above
def = minetest.registered_nodes[minetest.get_node(pos).name]
end
return pos, def
end
-- abstract function checking if 2 given nodes can and may be build to a place
local function is_buildable_to(placer_name, pos, def, pos2)
local def = def or minetest.registered_nodes[minetest.get_node(pos).name]
local def2 = minetest.registered_nodes[minetest.get_node(pos2).name]
return def and def.buildable_to and def2 and def2.buildable_to
and not minetest.is_protected(pos, placer_name)
and not minetest.is_protected(pos2, placer_name)
end
-- place one or two nodes if and only if both can be placed
local function stack(itemstack, placer, fdir, pos, def, pos2, node1, node2)
local placer_name = placer:get_player_name() or ""
if is_buildable_to(placer_name, pos, def, pos2) then
local fdir = fdir or minetest.dir_to_facedir(placer:get_look_dir())
minetest.set_node(pos, { name = node1, param2 = fdir })
if node2 then
minetest.set_node(pos2, { name = node2, param2 = fdir })
end
-- temporary check if this is a locked node to set its infotext
local nodename = itemstack:get_name()
if string.find(nodename, "_locked") then
local meta = minetest.get_meta(pos)
meta:set_string("owner", placer_name)
meta:set_string("infotext", S("Locked Refrigerator (owned by %s)"):format(placer_name))
end
if not homedecor.expect_infinite_stacks then
itemstack:take_item()
return itemstack
end
end
end
-- Stack one node above another
-- leave the last argument nil if it's one 2m high node
function homedecor.stack_vertically(itemstack, placer, pointed_thing, node1, node2)
local pos, def = get_buildable_to(pointed_thing)
local top_pos = { x=pos.x, y=pos.y+1, z=pos.z }
return stack(itemstack, placer, nil, pos, def, top_pos, node1, node2)
end
-- Place one node right of or behind another
homedecor.fdir_to_right = {
{ 1, 0 },
{ 0, -1 },
{ -1, 0 },
{ 0, 1 },
}
homedecor.fdir_to_fwd = {
{ 0, 1 },
{ 1, 0 },
{ 0, -1 },
{ -1, 0 },
}
function homedecor.stack_sideways(itemstack, placer, pointed_thing, node1, node2, dir)
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local fdir_transform = dir and homedecor.fdir_to_right or homedecor.fdir_to_fwd
local pos, def = get_buildable_to(pointed_thing)
local pos2 = { x = pos.x + fdir_transform[fdir+1][1], y=pos.y, z = pos.z + fdir_transform[fdir+1][2] }
return stack(itemstack, placer, fdir, pos, def, pos2, node1, node2)
end

113
homedecor/init.lua
View File

@@ -57,8 +57,6 @@ function homedecor.table_copy(t)
return nt
end
--
function homedecor.get_nodedef_field(nodename, fieldname)
if not minetest.registered_nodes[nodename] then
return nil
@@ -66,114 +64,6 @@ function homedecor.get_nodedef_field(nodename, fieldname)
return minetest.registered_nodes[nodename][fieldname]
end
-- Place a two-node-tall single object (e.g. a floor lamp)
function homedecor.place_twonode_vertical(itemstack, placer, pointed_thing, node)
local pos = pointed_thing.under
local pnode = minetest.get_node(pointed_thing.under)
local rnodedef = minetest.registered_nodes[pnode.name]
if not rnodedef["buildable_to"] then
pos = pointed_thing.above
end
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local pos2 = { x = pos.x, y=pos.y + 1, z = pos.z }
local tnode = minetest.get_node(pos)
local tnode2 = minetest.get_node(pos2)
if homedecor.get_nodedef_field(tnode.name, "buildable_to")
and homedecor.get_nodedef_field(tnode2.name, "buildable_to")
and not minetest.is_protected(pos, placer:get_player_name())
and not minetest.is_protected(pos2, placer:get_player_name()) then
minetest.add_node(pos, { name = node, param2 = fdir })
if not homedecor.expect_infinite_stacks then
itemstack:take_item()
return itemstack
end
end
end
-- Stack one node above another
function homedecor.stack_vertically(itemstack, placer, pointed_thing, node1, node2)
local pos = pointed_thing.under
local pnode = minetest.get_node(pointed_thing.under)
local rnodedef = minetest.registered_nodes[pnode.name]
if not rnodedef["buildable_to"] then
pos = pointed_thing.above
end
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local pos2 = { x = pos.x, y=pos.y + 1, z = pos.z }
local tnode = minetest.get_node(pos)
local tnode2 = minetest.get_node(pos2)
if homedecor.get_nodedef_field(tnode.name, "buildable_to")
and homedecor.get_nodedef_field(tnode2.name, "buildable_to")
and not minetest.is_protected(pos, placer:get_player_name())
and not minetest.is_protected(pos2, placer:get_player_name()) then
minetest.add_node(pos, { name = node1, param2 = fdir })
minetest.add_node(pos2, { name = node2, param2 = fdir })
if not homedecor.expect_infinite_stacks then
itemstack:take_item()
return itemstack
end
end
end
-- Place one node right of or behind another
homedecor.fdir_to_right = {
{ 1, 0 },
{ 0, -1 },
{ -1, 0 },
{ 0, 1 },
}
homedecor.fdir_to_fwd = {
{ 0, 1 },
{ 1, 0 },
{ 0, -1 },
{ -1, 0 },
}
function homedecor.stack_sideways(itemstack, placer, pointed_thing, node1, node2, dir)
local pos = pointed_thing.under
local pnode = minetest.get_node(pointed_thing.under)
local rnodedef = minetest.registered_nodes[pnode.name]
if not rnodedef["buildable_to"] then
pos = pointed_thing.above
end
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local pos2
if dir then
pos2 = { x = pos.x + homedecor.fdir_to_right[fdir+1][1], y=pos.y, z = pos.z + homedecor.fdir_to_right[fdir+1][2] }
else
pos2 = { x = pos.x + homedecor.fdir_to_fwd[fdir+1][1], y=pos.y, z = pos.z + homedecor.fdir_to_fwd[fdir+1][2] }
end
local tnode = minetest.get_node(pos)
local tnode2 = minetest.get_node(pos2)
if homedecor.get_nodedef_field(tnode.name, "buildable_to")
and homedecor.get_nodedef_field(tnode2.name, "buildable_to")
and not minetest.is_protected(pos, placer:get_player_name())
and not minetest.is_protected(pos2, placer:get_player_name()) then
minetest.add_node(pos, { name = node1, param2 = fdir })
minetest.add_node(pos2, { name = node2, param2 = fdir })
if not homedecor.expect_infinite_stacks then
itemstack:take_item()
return itemstack
end
end
end
-- Determine if the item being pointed at is the underside of a node (e.g a ceiling)
function homedecor.find_ceiling(itemstack, placer, pointed_thing)
@@ -222,6 +112,9 @@ function homedecor.find_ceiling(itemstack, placer, pointed_thing)
return isceiling, pos
end
-- expand and unexpand decor
dofile(homedecor.modpath.."/expansion.lua")
-- glue it all together into a registration function
dofile(homedecor.modpath.."/registration_handler.lua")
-- load various other components

2
homedecor/lighting.lua
View File

@@ -456,7 +456,7 @@ local function reg_lamp(suffix, nxt, tilesuffix, light, color)
selection_box = slamp_cbox,
collision_box = slamp_cbox,
on_place = function(itemstack, placer, pointed_thing)
return homedecor.place_twonode_vertical(itemstack, placer, pointed_thing,
return homedecor.place_vertically(itemstack, placer, pointed_thing,
"homedecor:standing_lamp"..lampcolor.."_"..suffix)
end,
on_punch = function(pos, node, puncher)

69
homedecor/refrigerator.lua
View File

@@ -54,39 +54,7 @@ homedecor.register("refrigerator_steel_bottom", {
fixed = { -0.5, -0.5, -0.5, 0.5, 1.5, 0.5 }
},
on_place = function(itemstack, placer, pointed_thing)
local pos = pointed_thing.under
local pnode = minetest.get_node(pointed_thing.under)
local rnodedef = minetest.registered_nodes[pnode.name]
if not rnodedef["buildable_to"] then
pos = pointed_thing.above
end
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local pos2 = { x = pos.x, y=pos.y + 1, z = pos.z }
local tnode = minetest.get_node(pos)
local tnode2 = minetest.get_node(pos2)
if homedecor.get_nodedef_field(tnode.name, "buildable_to")
and homedecor.get_nodedef_field(tnode2.name, "buildable_to")
and not minetest.is_protected(pos, placer:get_player_name())
and not minetest.is_protected(pos2, placer:get_player_name()) then
local nodename = itemstack:get_name()
minetest.add_node(pos, { name = nodename, param2 = fdir })
minetest.add_node(pos2, { name = "homedecor:refrigerator_steel_top", param2 = fdir })
if string.find(nodename, "_locked") then
local meta = minetest.get_meta(pos)
meta:set_string("owner", placer:get_player_name() or "")
meta:set_string("infotext", S("Locked Refrigerator (owned by %s)"):format(meta:get_string("owner")))
end
if not homedecor.expect_infinite_stacks then
itemstack:take_item()
return itemstack
end
end
homedecor.stack_vertically(itemstack, placer, pointed_thing, "homedecor:refrigerator_steel_bottom", "homedecor:refrigerator_steel_top")
end,
after_dig_node = function(pos, oldnode, oldmetadata, digger)
local pos2 = { x = pos.x, y=pos.y + 1, z = pos.z }
@@ -97,6 +65,7 @@ homedecor.register("refrigerator_steel_bottom", {
infotext=S("Refrigerator"),
inventory = {
size=50,
lockable=true,
formspec="size[10,10]"..
"list[context;main;0,0;10,5;]"..
"list[current_player;main;1,6;8,4;]",
@@ -140,39 +109,7 @@ homedecor.register("refrigerator_white_bottom", {
fixed = { -0.5, -0.5, -0.5, 0.5, 1.5, 0.5 }
},
on_place = function(itemstack, placer, pointed_thing)
local pos = pointed_thing.under
local pnode = minetest.get_node(pointed_thing.under)
local rnodedef = minetest.registered_nodes[pnode.name]
if not rnodedef["buildable_to"] then
pos = pointed_thing.above
end
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local pos2 = { x = pos.x, y=pos.y + 1, z = pos.z }
local tnode = minetest.get_node(pos)
local tnode2 = minetest.get_node(pos2)
if homedecor.get_nodedef_field(tnode.name, "buildable_to")
and homedecor.get_nodedef_field(tnode2.name, "buildable_to")
and not minetest.is_protected(pos, placer:get_player_name())
and not minetest.is_protected(pos2, placer:get_player_name()) then
local nodename = itemstack:get_name()
minetest.add_node(pos, { name = nodename, param2 = fdir })
minetest.add_node(pos2, { name = "homedecor:refrigerator_white_top", param2 = fdir })
if string.find(nodename, "_locked") then
local meta = minetest.get_meta(pos)
meta:set_string("owner", placer:get_player_name() or "")
meta:set_string("infotext", S("Locked Refrigerator (owned by %s)"):format(meta:get_string("owner")))
end
if not homedecor.expect_infinite_stacks then
itemstack:take_item()
return itemstack
end
end
homedecor.stack_vertically(itemstack, placer, pointed_thing, "homedecor:refrigerator_white_bottom", "homedecor:refrigerator_white_top")
end,
after_dig_node = function(pos, oldnode, oldmetadata, digger)
local pos2 = { x = pos.x, y=pos.y + 1, z = pos.z }