mod-sneeker/spawn.lua
2021-05-08 15:19:44 -07:00

56 lines
1.3 KiB
Lua

local spawn_nodes = {
"default:dirt_with_dry_grass",
"default:dry_dirt",
"default:dry_dirt_with_dry_grass",
"default:desert_sand",
}
if core.global_exists("nether") then
table.insert(spawn_nodes, "nether:rack")
end
for _, node_name in ipairs(spawn_nodes) do
if not core.registered_nodes[node_name] then
sneeker.log("warning", "Invalid node for spawn: " .. node_name)
end
end
core.register_abm({
nodenames = spawn_nodes,
neighbors = {"air"},
interval = sneeker.spawn_interval,
chance = sneeker.spawn_chance,
action = function(pos, node, aoc, aocw)
if aoc >= sneeker.spawn_mapblock_limit then return end
-- check above target node
pos.y = pos.y+1
if pos.y > sneeker.spawn_maxheight or pos.y < sneeker.spawn_minheight then
return
end
-- needs two vertical air nodes to spawn
for _, node_pos in ipairs({pos, {x=pos.x, y=pos.y+1, z=pos.z}}) do
if core.get_node(node_pos).name ~= "air" then
return
end
end
local llevel = core.get_node_light(pos)
if not llevel or llevel > sneeker.spawn_maxlight or llevel < sneeker.spawn_minlight then
return
end
local spawned = core.add_entity(pos, "sneeker:sneeker")
if not spawned then
sneeker.log("warning", "Failed to spawn at: "
.. tostring(math.floor(pos.x))
.. "," .. tostring(math.floor(pos.y))
.. "," .. tostring(math.floor(pos.z)))
end
end
})