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Rate limit pathfinding attempts

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In certain situation it otherwise results in excessive attempts to
find a path.
This commit is contained in:
cora 2022-06-16 00:58:01 +02:00
parent fb6e790535
commit e630ea59c9
1 changed files with 43 additions and 26 deletions
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69
mods/ENTITIES/mcl_mobs/api.lua
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@ -2314,6 +2314,41 @@ local function check_doors(self)
end
end
local gowp_etime = 0
local function check_gowp(self,dtime)
gowp_etime = gowp_etime + dtime
if gowp_etime < 1 then return end
gowp_etime = 0
local p = self.object:get_pos()
if not p or not self._target then return end
if vector.distance(p,self._target) < 2 or ( self.waypoints and #self.waypoints == 0 ) then
self.waypoints = nil
self._target = nil
self.current_target = nil
self.state = "walk"
if self.callback_arrived then return self.callback_arrived(self) end
return true
end
if self.waypoints and ( not self.current_target or vector.distance(p,self.current_target) < 1.5 ) then
self.current_target = table.remove(self.waypoints, 1)
--minetest.log("nextwp:".. tostring(self.current_target) )
elseif self.current_target then
go_to_pos(self,self.current_target)
end
if self.current_target and not minetest.line_of_sight(self.object:get_pos(),self.current_target) then
self.waypoints=minetest.find_path(p,self._target,150,1,4)
if not self.waypoints then self.state = "walk" end --give up
self.current_target = nil
return
end
if not self.current_target then
--minetest.log("no path")
self.state = "walk"
end
end
-- execute current state (stand, walk, run, attacks)
-- returns true if mob has died
local do_states = function(self, dtime)
@ -2371,32 +2406,7 @@ local do_states = function(self, dtime)
end
elseif self.state == "gowp" then
local p = self.object:get_pos()
if not p or not self._target then return end
if vector.distance(p,self._target) < 2 or ( self.waypoints and #self.waypoints == 0 ) then
self.waypoints = nil
self._target = nil
self.current_target = nil
self.state = "walk"
if self.callback_arrived then return self.callback_arrived(self) end
return true
end
if self.waypoints and ( not self.current_target or vector.distance(p,self.current_target) < 1.5 ) then
self.current_target = table.remove(self.waypoints, 1)
--minetest.log("nextwp:".. tostring(self.current_target) )
elseif self.current_target then
go_to_pos(self,self.current_target)
end
if self.current_target and not minetest.line_of_sight(self.object:get_pos(),self.current_target) then
self.waypoints=minetest.find_path(p,self._target,150,1,4)
self.current_target = nil
return
end
if not self.current_target then
--minetest.log("no path")
self.state = "walk"
end
check_gowp(self,dtime)
elseif self.state == "walk" then
local s = self.object:get_pos()
@ -2907,7 +2917,11 @@ local plane_adjacents = {
vector.new(0,0,-1),
}
local gopath_last = os.time()
function mcl_mobs:gopath(self,target,callback_arrived)
if os.time() - gopath_last < 15 then return end
gopath_last = os.time()
local p = self.object:get_pos()
local t = vector.offset(target,0,1,0)
local wp = minetest.find_path(p,t,150,1,4)
@ -2931,6 +2945,9 @@ function mcl_mobs:gopath(self,target,callback_arrived)
self.state = "gowp"
return true
else
self.state = "walk"
self.waypoints = nil
self.current_target = nil
--minetest.log("no path found")
end
end