fix bad physics(conflicts, many mods rewrites physics in step)

fix witchcraft and sprint physics
remove blankspaces

minetestforfun_game/mods/player_physics/init.lua

@@ -0,0 +1,126 @@
+local players = {}
+player_physics = {}
+
+
+function player_physics.check(playername)
+	if players[playername] == nil then
+		players[playername] = {speed = {}, jump = {}, gravity={}, temp={}}
+	end
+end
+
+
+minetest.register_on_joinplayer(function(player)
+	local playername = player:get_player_name()
+	player_physics.check(playername)
+end)
+
+
+minetest.register_on_leaveplayer(function(player)
+	local playername = player:get_player_name()
+	players[playername] = nil
+end)
+
+
+function player_physics.add(player, physicsname , name, value)
+	if physicsname ~= "speed" and physicsname ~= "jump" and physicsname ~= "gravity" then
+		return
+	end
+	local playername = player:get_player_name()
+	player_physics.check(playername)
+	players[playername][physicsname][name] = value
+end
+
+
+function player_physics.remove(player, physicsname, name)
+	if physicsname ~= "speed" and physicsname ~= "jump" and physicsname ~= "gravity" then
+		return
+	end
+	local playername = player:get_player_name()
+	player_physics.check(playername)
+	players[playername][physicsname][name] = nil
+end
+
+
+function player_physics.add_effect(player, physicsname, name, value, time)
+	if physicsname ~= "speed" and physicsname ~= "jump" and physicsname ~= "gravity" then
+		return
+	end
+	if type(value) ~= "number" or type(time) ~= "number" then
+		return
+	end
+	local playername = player:get_player_name()
+	player_physics.check(playername)
+	players[playername]["temp"][name] = {n=physicsname, v=value, t=time}
+end
+
+
+function player_physics.remove_effect(player, name)
+	local playername = player:get_player_name()
+	player_physics.check(playername)
+	players[playername]["temp"][name] = nil
+end
+
+
+
+
+
+minetest.register_globalstep(function(dtime)
+	for _,player in ipairs(minetest.get_connected_players()) do
+		local playername = player:get_player_name()
+		if playername ~= "" then
+			player_physics.check(playername)
+			local speed = 1
+			local jump = 1
+			local gravity = 1
+
+			for _, v in pairs(players[playername]["speed"]) do
+				speed = speed + v
+			end
+			for _, v in pairs(players[playername]["jump"]) do
+				jump = jump + v
+			end
+			for _, v in pairs(players[playername]["gravity"]) do
+				gravity = gravity + v
+			end
+
+			--temporary effect
+			for n, k in pairs(players[playername]["temp"]) do
+				if k.n == "speed" then
+					speed = speed + k.v
+				elseif k.n == "jump" then
+					jump = jump + k.v
+				elseif k.n == "gravity" then
+					gravity = gravity + k.v
+				end
+
+				t = k.t-dtime
+				if t > 0 then
+					players[playername]["temp"][n]["t"] = t
+				else
+					players[playername]["temp"][n] = nil
+				end
+			end
+
+			if speed > 4 then
+				speed = 4
+			elseif speed < 0 then
+				speed = 0
+			end
+
+			if jump > 3 then
+				jump = 3
+			elseif jump < 0 then
+				jump = 0
+			end
+
+			if gravity > 2 then
+				gravity = 2
+			elseif gravity < -2 then
+				gravity = -2
+			end
+
+			player:set_physics_override({speed=speed,jump=jump, gravity=gravity})
+		end
+	end
+end)
+