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Merge pull request 'Alternative solution to fix crash on nether portal destruction' (#2029) from ryvnf-portal-removal into master
Reviewed-on: https://git.minetest.land/MineClone2/MineClone2/pulls/2029
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commit
e8ff33a741
@ -204,37 +204,52 @@ local function get_target(p)
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end
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end
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-- Destroy portal if pos (portal frame or portal node) got destroyed
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-- Destroy a nether portal. Connected portal nodes are searched and removed
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-- using 'bulk_set_node'. This function is called from 'after_destruct' of
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-- nether portal nodes. The flag 'destroying_portal' is used to avoid this
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-- function being called recursively through callbacks in 'bulk_set_node'.
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local destroying_portal = false
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local function destroy_nether_portal(pos, node)
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if not node then return end
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local nn, orientation = node.name, node.param2
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local obsidian = nn == OBSIDIAN
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local function check_remove(pos, orientation)
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local node = get_node(pos)
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if node and (node.name == PORTAL and (orientation == nil or (node.param2 == orientation))) then
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minetest.remove_node(pos)
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remove_exit(pos)
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end
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end
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if obsidian then -- check each of 6 sides of it and destroy every portal:
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check_remove({x = pos.x - 1, y = pos.y, z = pos.z}, 0)
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check_remove({x = pos.x + 1, y = pos.y, z = pos.z}, 0)
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check_remove({x = pos.x, y = pos.y, z = pos.z - 1}, 1)
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check_remove({x = pos.x, y = pos.y, z = pos.z + 1}, 1)
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check_remove({x = pos.x, y = pos.y - 1, z = pos.z})
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check_remove({x = pos.x, y = pos.y + 1, z = pos.z})
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if destroying_portal then
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return
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end
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if orientation == 0 then
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check_remove({x = pos.x - 1, y = pos.y, z = pos.z}, 0)
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check_remove({x = pos.x + 1, y = pos.y, z = pos.z}, 0)
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else
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check_remove({x = pos.x, y = pos.y, z = pos.z - 1}, 1)
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check_remove({x = pos.x, y = pos.y, z = pos.z + 1}, 1)
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destroying_portal = true
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local orientation = node.param2
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local checked_tab = { [minetest.hash_node_position(pos)] = true }
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local nodes = { pos }
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local function check_remove(pos)
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local h = minetest.hash_node_position(pos)
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if checked_tab[h] then
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return
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end
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local node = minetest.get_node(pos)
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if node and node.name == PORTAL and (orientation == nil or node.param2 == orientation) then
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table.insert(nodes, pos)
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checked_tab[h] = true
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end
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end
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check_remove({x = pos.x, y = pos.y - 1, z = pos.z})
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check_remove({x = pos.x, y = pos.y + 1, z = pos.z})
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local i = 1
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while i <= #nodes do
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pos = nodes[i]
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if orientation == 0 then
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check_remove({x = pos.x - 1, y = pos.y, z = pos.z})
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check_remove({x = pos.x + 1, y = pos.y, z = pos.z})
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else
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check_remove({x = pos.x, y = pos.y, z = pos.z - 1})
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check_remove({x = pos.x, y = pos.y, z = pos.z + 1})
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end
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check_remove({x = pos.x, y = pos.y - 1, z = pos.z})
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check_remove({x = pos.x, y = pos.y + 1, z = pos.z})
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remove_exit(pos)
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i = i + 1
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end
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minetest.bulk_set_node(nodes, { name = "air" })
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destroying_portal = false
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end
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local on_rotate
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@ -817,7 +832,23 @@ local usagehelp = S("To open a Nether portal, place an upright frame of obsidian
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minetest.override_item(OBSIDIAN, {
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_doc_items_longdesc = longdesc,
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_doc_items_usagehelp = usagehelp,
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after_destruct = destroy_nether_portal,
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after_destruct = function(pos, node)
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local function check_remove(pos, orientation)
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local node = get_node(pos)
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if node and node.name == PORTAL then
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minetest.remove_node(pos)
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end
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end
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-- check each of 6 sides of it and destroy every portal
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check_remove({x = pos.x - 1, y = pos.y, z = pos.z})
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check_remove({x = pos.x + 1, y = pos.y, z = pos.z})
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check_remove({x = pos.x, y = pos.y, z = pos.z - 1})
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check_remove({x = pos.x, y = pos.y, z = pos.z + 1})
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check_remove({x = pos.x, y = pos.y - 1, z = pos.z})
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check_remove({x = pos.x, y = pos.y + 1, z = pos.z})
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end,
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_on_ignite = function(user, pointed_thing)
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local x, y, z = pointed_thing.under.x, pointed_thing.under.y, pointed_thing.under.z
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-- Check empty spaces around obsidian and light all frames found:
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