From 94f07c2b3dbf86e6b81b6cf2e8554da1932ccc45 Mon Sep 17 00:00:00 2001
From: cora <coradelamouche@gmx.ch>
Date: Fri, 26 Aug 2022 04:03:20 +0200
Subject: [PATCH] Fix ender particle spam with particlespammers

---
 mods/ENTITIES/mobs_mc/enderman.lua | 54 +++++++++++++++++++++++-------
 1 file changed, 42 insertions(+), 12 deletions(-)

diff --git a/mods/ENTITIES/mobs_mc/enderman.lua b/mods/ENTITIES/mobs_mc/enderman.lua
index 1ff27934b4..5445d59c43 100644
--- a/mods/ENTITIES/mobs_mc/enderman.lua
+++ b/mods/ENTITIES/mobs_mc/enderman.lua
@@ -219,6 +219,7 @@ local select_enderman_animation = function(animation_type)
 end
 
 local mobs_griefing = minetest.settings:get_bool("mobs_griefing") ~= false
+local spawners = {}
 
 mcl_mobs:register_mob("mobs_mc:enderman", {
 	description = S("Enderman"),
@@ -263,20 +264,42 @@ mcl_mobs:register_mob("mobs_mc:enderman", {
 	do_custom = function(self, dtime)
 		-- PARTICLE BEHAVIOUR HERE.
 		local enderpos = self.object:get_pos()
-		local chanceOfParticle = math.random(0, 1)
-		if chanceOfParticle == 1 then
-			minetest.add_particle({
-				pos = {x=enderpos.x+math.random(-1,1)*math.random()/2,y=enderpos.y+math.random(0,3),z=enderpos.z+math.random(-1,1)*math.random()/2},
-				velocity = {x=math.random(-.25,.25), y=math.random(-.25,.25), z=math.random(-.25,.25)},
-				acceleration = {x=math.random(-.5,.5), y=math.random(-.5,.5), z=math.random(-.5,.5)},
-				expirationtime = math.random(),
-				size = math.random(),
-				collisiondetection = true,
-				vertical = false,
-				texture = "mcl_portals_particle"..math.random(1, 5)..".png",
-			})
+		if self._particle_timer and self._particle_timer >= 1 then
+			for _,player in pairs(minetest.get_connected_players()) do
+				if not spawners[player] then spawners[player] = {} end
+				local dst = vector.distance(player:get_pos(),enderpos)
+				if dst < 128 and not spawners[player][self.object] then
+					self._particle_timer = 0
+					spawners[player][self.object] = minetest.add_particlespawner({
+						amount = 5,
+						minpos = vector.new(-0.6,0,-0.6),
+						maxpos = vector.new(0.6,3,0.6),
+						minvel = vector.new(-0.25,-0.25,-0.25),
+						maxvel = vector.new(0.25,0.25,0.25),
+						minacc = vector.new(-0.5,-0.5,-0.5),
+						maxacc = vector.new(0.5,0.5,0.5),
+						minexptime = 0.2,
+						maxexptime = 3,
+						minsize = 0.2,
+						maxsize = 1.2,
+						collisiondetection = true,
+						vertical = false,
+						time = 0,
+						texture = "mcl_portals_particle"..math.random(1, 5)..".png",
+						attached = self.object,
+						playername = player:get_player_name(),
+					})
+				elseif dst > 128 and spawners[player][self.object] then
+					minetest.delete_particlespawner(spawners[player][self.object])
+					spawners[player][self.object] = nil
+				end
+			end
+		elseif not self._particle_timer then
+			self._particle_timer = 0
 		end
+		self._particle_timer = self._particle_timer + dtime
 		-- RAIN DAMAGE / EVASIVE WARP BEHAVIOUR HERE.
+		enderpos = self.object:get_pos()
 		local dim = mcl_worlds.pos_to_dimension(enderpos)
 		if dim == "overworld" then
 			if mcl_weather.state == "rain" or mcl_weather.state == "lightning" then
@@ -593,6 +616,13 @@ mcl_mobs:register_mob("mobs_mc:enderman", {
 	attack_type = "dogfight",
 })
 
+minetest.register_on_leaveplayer(function(player)
+	for _,s in pairs(spawners[player]) do
+		minetest.delete_particlespawner(s)
+	end
+	spawners[player] = nil
+end)
+
 
 -- End spawn
 mcl_mobs:spawn_specific(