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Nether portals now work without corners, too

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This commit is contained in:
Wuzzy 2017-08-17 15:08:07 +02:00
parent f2bee2286f
commit 130f05b9cd
1 changed files with 33 additions and 24 deletions
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41
mods/ITEMS/mcl_portals/portal_nether.lua
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@ -23,17 +23,17 @@ local destroy_portal = function(pos)
return
end
local first = true
local counter = 1
-- p1 metadata of first node
local mp1
for x = p1.x, p2.x do
for y = p1.y, p2.y do
for z = p1.z, p2.z do
local p = vector.new(x, y, z)
local m = minetest.get_meta(p)
if first then
--[[ Only proceed if the first node still has metadata.
if counter == 2 then
--[[ Only proceed if the second node still has metadata.
(first node is a corner and not needed for the portal)
If it doesn't have metadata, another node propably triggred the delection
routine earlier, so we bail out earlier to avoid an infinite cascade
of on_destroy events. ]]
@ -53,7 +53,7 @@ local destroy_portal = function(pos)
m:set_string("portal_frame2", "")
m:set_string("portal_target", "")
end
first = false
counter = counter + 1
end
end
end
@ -139,6 +139,7 @@ local function build_portal(pos, target)
for x = p1.x, p2.x do
for y = p1.y, p2.y do
p = {x = x, y = y, z = p1.z}
if not ((x == p1.x or x == p2.x) and (y == p1.y or y == p2.y)) then
if not (x == p1.x or x == p2.x or y == p1.y or y == p2.y) then
minetest.set_node(p, {name = "mcl_portals:portal", param2 = 0})
end
@ -146,6 +147,7 @@ local function build_portal(pos, target)
meta:set_string("portal_frame1", minetest.pos_to_string(p1))
meta:set_string("portal_frame2", minetest.pos_to_string(p2))
meta:set_string("portal_target", minetest.pos_to_string(target))
end
if y ~= p1.y then
for z = -2, 2 do
@ -189,22 +191,27 @@ end
local function move_check(p1, max, dir)
local p = {x = p1.x, y = p1.y, z = p1.z}
local d = math.abs(max - p1[dir]) / (max - p1[dir])
local d = math.sign(max - p1[dir])
local min = p[dir]
while p[dir] ~= max do
p[dir] = p[dir] + d
if minetest.get_node(p).name ~= "mcl_core:obsidian" then
for k = min, max, d do
p[dir] = k
local node = minetest.get_node(p)
-- Check for obsidian (except at corners)
if k ~= min and k ~= max and node.name ~= "mcl_core:obsidian" then
return false
end
-- Abort if any of the portal frame blocks already has metadata.
-- This mod does not yet portals which neighbor each other directly.
-- TODO: Reorganize the way how portal frame coordinates are stored.
if node.name == "mcl_core:obsidian" then
local meta = minetest.get_meta(p)
local p1 = meta:get_string("portal_frame1")
if minetest.string_to_pos(p1) ~= nil then
local pframe1 = meta:get_string("portal_frame1")
if minetest.string_to_pos(pframe1) ~= nil then
return false
end
end
end
return true
end
@ -289,16 +296,17 @@ local function make_portal(pos)
target.y = find_nether_target_y(target.x, target.z)
end
for d = 0, 3 do
for y = p1.y, p2.y do
local p = {}
local dmin, dmax, ymin, ymax = 0, 3, p1.y, p2.y
for d = dmin, dmax do
for y = ymin, ymax do
if not ((d == dmin or d == dmax) and (y == ymin or y == ymax)) then
local p
if param2 == 0 then
p = {x = p1.x + d, y = y, z = p1.z}
else
p = {x = p1.x, y = y, z = p1.z + d}
end
if minetest.get_node(p).name == "air"
then
if minetest.get_node(p).name == "air" then
minetest.set_node(p, {name = "mcl_portals:portal", param2 = param2})
end
local meta = minetest.get_meta(p)
@ -311,6 +319,7 @@ local function make_portal(pos)
meta:set_string("portal_target", minetest.pos_to_string(target))
end
end
end
return true
end