MineClone5/mods/ENTITIES/mobs_mc/3_shared.lua

64 lines
2.2 KiB
Lua
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

local pr = PseudoRandom(os.time()*5)
local offsets = {}
for x=-2, 2 do
for z=-2, 2 do
table.insert(offsets, {x=x, y=0, z=z})
end
end
--[[ Periodically check and teleport mob to owner if not sitting (order ~= "sit") and
the owner is too far away. To be used with do_custom. Note: Optimized for mobs smaller than 1×1×1.
Larger mobs might have space problems after teleportation.
* dist: Minimum required distance from owner to teleport. Default: 12
* teleport_check_interval: Optional. Interval in seconds to check the mob teleportation. Default: 4 ]]
mobs_mc.make_owner_teleport_function = function(dist, teleport_check_interval)
return function(self, dtime)
-- No teleportation if no owner or if sitting
if not self.owner or self.order == "sit" then
return
end
if not teleport_check_interval then
teleport_check_interval = 4
end
if not dist then
dist = 12
end
if self._teleport_timer == nil then
self._teleport_timer = teleport_check_interval
return
end
self._teleport_timer = self._teleport_timer - dtime
if self._teleport_timer <= 0 then
self._teleport_timer = teleport_check_interval
local mob_pos = self.object:get_pos()
local owner = minetest.get_player_by_name(self.owner)
if not owner then
-- No owner found, no teleportation
return
end
local owner_pos = owner:get_pos()
local dist_from_owner = vector.distance(owner_pos, mob_pos)
if dist_from_owner > dist then
-- Check for nodes below air in a 5×1×5 area around the owner position
local check_offsets = table.copy(offsets)
-- Attempt to place mob near player. Must be placed on walkable node below a non-walkable one. Place inside that air node.
while #check_offsets > 0 do
local r = pr:next(1, #check_offsets)
local telepos = vector.add(owner_pos, check_offsets[r])
local telepos_below = {x=telepos.x, y=telepos.y-1, z=telepos.z}
table.remove(check_offsets, r)
-- Long story short, spawn on a platform
if minetest.registered_nodes[minetest.get_node(telepos).name].walkable == false and
minetest.registered_nodes[minetest.get_node(telepos_below).name].walkable == true then
-- Correct position found! Let's teleport.
self.object:set_pos(telepos)
return
end
end
end
end
end
end