Use correct gravity everywhere

mods/drippingwater/init.lua

@@ -5,6 +5,8 @@
 
 --Drop entities
 
+local GRAVITY = -(tonumber(minetest.settings:get("movement_gravity")) or 10)
+
 minetest.register_entity("drippingwater:drop_water", {
 	hp_max = 2,
 	physical = true,
@@ -28,11 +30,11 @@ minetest.register_entity("drippingwater:drop_water", {
 		local ownpos = self.object:get_pos()
 
 		if k==1 then
-			self.object:set_acceleration({x=0, y=-5, z=0})
+			self.object:set_acceleration({x=0, y=GRAVITY, z=0})
 		end
 
 		if minetest.get_node({x=ownpos.x, y=ownpos.y+0.5, z=ownpos.z}).name == "air" then
-			self.object:set_acceleration({x=0, y=-5, z=0})
+			self.object:set_acceleration({x=0, y=GRAVITY, z=0})
 		end
 	
 		if minetest.get_node({x=ownpos.x, y=ownpos.y -0.5, z=ownpos.z}).name ~= "air" then

mods/mobs/api.lua

@@ -60,6 +60,7 @@ local mob_nospawn_range = tonumber(settings:get("mob_nospawn_range") or 12)
 local active_limit = tonumber(settings:get("mob_active_limit") or 0)
 local mob_chance_multiplier = tonumber(settings:get("mob_chance_multiplier") or 1)
 local active_mobs = 0
+local GRAVITY = -(tonumber(minetest.settings:get("movement_gravity")) or 10)
 
 
 -- Peaceful mode message so players will know there are no monsters
@@ -669,7 +670,7 @@ local effect = function(pos, amount, texture, min_size, max_size,
 	radius = radius or 2
 	min_size = min_size or 0.5
 	max_size = max_size or 1
-	gravity = gravity or -10
+	gravity = gravity or GRAVITY
 	glow = glow or 0
 
 	if fall == true then
@@ -2620,7 +2621,7 @@ function mob_class:falling(pos)
 	-- sanity check
 	if not v then return end
 
-	local fall_speed = -10 -- gravity
+	local fall_speed = GRAVITY
 
 	-- don't exceed mob fall speed
 	if v.y < self.fall_speed then

mods/mobs/mount.lua

@@ -3,6 +3,7 @@
 
 local enable_crash = false
 local crash_threshold = 6.5 -- ignored if enable_crash=false
+local GRAVITY = -(tonumber(minetest.settings:get("movement_gravity")) or 10)
 
 ------------------------------------------------------------------------------
 
@@ -300,7 +301,7 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 	-- Set position, velocity and acceleration
 	local p = entity.object:get_pos()
 	local new_velo
-	local new_acce = {x = 0, y = -9.8, z = 0}
+	local new_acce = {x = 0, y = GRAVITY, z = 0}
 
 	p.y = p.y - 0.5