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save bounding box relative to root.

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This commit is contained in:
FaceDeer 2019-08-18 22:41:01 -06:00
parent 4031ea0484
commit e16035b037
1 changed files with 22 additions and 3 deletions
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25
functions.lua
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@ -2,6 +2,7 @@ local mod_meta = minetest.get_mod_storage()
digtron.layout = {}
digtron.adjacent = {}
digtron.bounding_box = {}
------------------------------------------------------------------------------------
-- Inventory
@ -131,6 +132,7 @@ local dispose_id = function(digtron_id)
mod_meta:set_string("layout_"..digtron_id, "")
mod_meta:set_string("adjacent_"..digtron_id, "")
mod_meta:set_string("name_"..digtron_id, "")
mod_meta:set_string("bounding_box_"..digtron_id, "")
end
--------------------------------------------------------------------------------------------
@ -175,6 +177,8 @@ local persist_layout = get_persist_table_function("layout")
local retrieve_layout = get_retrieve_table_function("layout")
local persist_adjacent = get_persist_table_function("adjacent")
local retrieve_adjacent = get_retrieve_table_function("adjacent")
local persist_bounding_box = get_persist_table_function("bounding_box")
local retrieve_bounding_box = get_retrieve_table_function("bounding_box")
local cardinal_directions = {
{x=1,y=0,z=0},
@ -185,9 +189,18 @@ local cardinal_directions = {
{x=0,y=0,z=-1},
}
local update_bounding_box = function(bounding_box, pos)
bounding_box.minp.x = math.min(bounding_box.minp.x, pos.x)
bounding_box.minp.y = math.min(bounding_box.minp.y, pos.y)
bounding_box.minp.z = math.min(bounding_box.minp.z, pos.z)
bounding_box.maxp.x = math.max(bounding_box.maxp.x, pos.x)
bounding_box.maxp.y = math.max(bounding_box.maxp.y, pos.y)
bounding_box.maxp.z = math.max(bounding_box.maxp.z, pos.z)
end
-- recursive function searches out all connected unassigned digtron nodes
local get_all_adjacent_digtron_nodes
get_all_adjacent_digtron_nodes = function(pos, digtron_nodes, digtron_adjacent, player_name)
get_all_adjacent_digtron_nodes = function(pos, digtron_nodes, digtron_adjacent, bounding_box, player_name)
for _, dir in ipairs(cardinal_directions) do
local test_pos = vector.add(pos, dir)
local test_hash = minetest.hash_node_position(test_pos)
@ -203,7 +216,8 @@ get_all_adjacent_digtron_nodes = function(pos, digtron_nodes, digtron_adjacent,
else
--test_node.group_value = group_value -- for later ease of reference
digtron_nodes[test_hash] = test_node
get_all_adjacent_digtron_nodes(test_pos, digtron_nodes, digtron_adjacent, player_name) -- recurse
update_bounding_box(bounding_box, test_pos)
get_all_adjacent_digtron_nodes(test_pos, digtron_nodes, digtron_adjacent, bounding_box, player_name) -- recurse
end
else
-- don't record details, the content of this node will change as the digtron moves
@ -238,7 +252,8 @@ digtron.construct = function(root_pos, player_name)
local root_hash = minetest.hash_node_position(root_pos)
local digtron_nodes = {[root_hash] = node} -- Nodes that are part of Digtron
local digtron_adjacent = {} -- Nodes that are adjacent to Digtron but not a part of it
get_all_adjacent_digtron_nodes(root_pos, digtron_nodes, digtron_adjacent, player_name)
local bounding_box = {minp=vector.new(root_pos), maxp=vector.new(root_pos)}
get_all_adjacent_digtron_nodes(root_pos, digtron_nodes, digtron_adjacent, bounding_box, player_name)
local digtron_id, digtron_inv = create_new_id(root_pos)
@ -282,10 +297,14 @@ digtron.construct = function(root_pos, player_name)
layout[relative_hash] = {meta = current_meta_table, node = node}
end
bounding_box.minp = vector.subtract(bounding_box.minp, root_pos)
bounding_box.maxp = vector.subtract(bounding_box.maxp, root_pos)
digtron.set_name(digtron_id, root_meta:get_string("infotext"))
persist_inventory(digtron_id)
persist_layout(digtron_id, layout)
persist_adjacent(digtron_id, digtron_adjacent)
persist_bounding_box(digtron_id, bounding_box)
-- Wipe out the inventories of all in-world nodes, it's stored in the mod_meta now.
-- Wait until now to do it in case the above loop fails partway through.