mod-sneeker/spawn.lua

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-- Original code by Rui: WTFPL
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local time_min = 60
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local time_hr = time_min * 60
local time_day = time_hr * 24
local spawn_chance = minetest.setting_get('sneeker.spawn_chance') or 2 -- 50% chance of spawn
local spawn_interval = minetest.setting_get('sneeker.spawn_interval') or time_min * 40 -- Default interval is 40 minutes
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local spawn_chance_percent = tostring(math.floor(1 / spawn_chance * 100)) .. '%'
sneeker.log('Spawn chance: ' .. spawn_chance_percent)
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sneeker.log('Spawn interval: ' .. tostring(spawn_interval) .. ' (' .. tostring(spawn_interval/60) .. ' minute(s))')
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minetest.register_abm({
nodenames = {'default:dirt_with_grass', 'default:stone'},
neighbors = {'air'},
interval = spawn_interval,
chance = spawn_chance,
action = function(pos, node, _, active_object_count_wider)
if active_object_count_wider > 5 then
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return
end
-- Check light value of node
pos.y = pos.y+1
local node_light = minetest.get_node_light(pos)
-- Debugging spawning
sneeker.log_debug('Node light level at ' .. sneeker.get_pos_string(pos) .. ': ' .. tostring(node_light))
if not node_light or node_light > sneeker.spawn_maxlight or node_light < -1 then
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sneeker.log_debug('Node not dark enough for spawn')
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return
end
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-- Spawn range
if pos.y > 31000 then
return
end
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-- Node must be touching air
if minetest.get_node(pos).name ~= 'air' then
return
end
pos.y = pos.y+1
if minetest.get_node(pos).name ~= 'air' then
return
end
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-- Get total count of sneekers in world
local count = 0
for I in pairs(minetest.luaentities) do
if minetest.luaentities[I].name == sneeker.mob_name then
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count = count + 1
end
end
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sneeker.log_debug('Current active spawns: ' .. tostring(count) .. '/' .. tostring(sneeker.spawn_cap))
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if count >= sneeker.spawn_cap then
sneeker.log_debug('Max spawns reached')
return
end
sneeker.spawn(pos)
end
})