57 lines
2.7 KiB
Lua
57 lines
2.7 KiB
Lua
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-- Load setting
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local suffocation_damage = 2
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local setting = minetest.settings:get("real_suffocation_damage")
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if tonumber(setting) ~= nil then
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suffocation_damage = tonumber(setting)
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end
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-- Skip the rest if suffocation damage is 0, no point in overwriting stuff
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if suffocation_damage > 0 then
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-- Checks all nodes and adds suffocation (drowning damage) for suitable nodes
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local function add_suffocation()
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-- For debugging output
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local suffocate_nodes = {}
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local no_suffocate_nodes = {}
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-- Check ALL the nodes!
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for itemstring, def in pairs(minetest.registered_nodes) do
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--[[ Here comes the HUGE conditional deciding whether we use suffocation. We want to catch as many nodes as possible
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while avoiding bad nodes. We care mostly about physical properties, we don't care about visual appearance.
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Here's what it checks and why:
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- Walkable: Must be walkable, which means player can get stuck inside. If player can move freely, suffocation does not make sense
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- Drowning and damage: If node has set any of those explicitly, it probably knows why. We don't want to mess with it.
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- collision_box, node_box: Checks whether we deal with full-sized standard cubes, since only care about those.
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Everything else is probably too small for suffocation to seem real.
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- disable_suffocation group: If set to 1, we bail out. This makes it possible for nodes to defend themselves against hacking. :-)
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]]
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if (def.walkable == nil or def.walkable == true)
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and (def.drowning == nil or def.drowning == 0)
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and (def.damage_per_second == nil or def.damage_per_second <= 0)
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and (def.collision_box == nil or def.collision_box.type == "regular")
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and (def.node_box == nil or def.node_box.type == "regular")
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and (def.groups.disable_suffocation ~= 1)
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then
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-- Add “real_suffocation” group so other mods know this node was touched by this mod
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local marked_groups = def.groups
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marked_groups.real_suffocation = 1
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-- Let's hack the node!
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minetest.override_item(itemstring, { drowning = suffocation_damage, groups = marked_groups })
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table.insert(suffocate_nodes, itemstring)
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else
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table.insert(no_suffocate_nodes, itemstring)
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end
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end
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minetest.log("info", "[real_suffocation] Suffocation has been hacked into "..#suffocate_nodes.." nodes.")
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minetest.log("verbose", "[real_suffocation] Nodes with suffocation: "..dump(suffocate_nodes))
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minetest.log("verbose", "[real_suffocation] Suffocation has not been hacked into "..#no_suffocate_nodes.." nodes: "..dump(no_suffocate_nodes))
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end
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-- This is a minor hack to make sure our loop runs after all nodes have been registered
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minetest.after(0, add_suffocation)
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end
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minetest.register_on_joinplayer(function(player)
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player:set_properties({max_breath = 10})
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end)
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