use api functions for riding mob

api.lua

@@ -3493,7 +3493,7 @@ function mob_class:on_step(dtime, moveresult)
 
 		self.pause_timer = self.pause_timer - dtime
 
-		if self.pause_timer <= 0 and self.order == "stand" then
+		if self.pause_timer < 0 and self.order == "stand" then
 
 			self.pause_timer = 0
 			self:set_velocity(0)

mount.lua

@@ -344,7 +344,7 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 	if entity.v == 0 and velo.x == 0 and velo.y == 0 and velo.z == 0 then
 
 		if stand_anim then
-			mobs:set_animation(entity, stand_anim)
+			entity:set_animation(stand_anim)
 		end
 
 		return
@@ -352,7 +352,7 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 
 	-- set moving animation
 	if moving_anim then
-		mobs:set_animation(entity, moving_anim)
+		entity:set_animation(moving_anim)
 	end
 
 	-- Stop!
@@ -518,9 +518,9 @@ function mobs.fly(entity, _, speed, shoots, arrow, moving_anim, stand_anim)
 
 	-- change animation if stopped
 	if velo.x == 0 and velo.y == 0 and velo.z == 0 then
-		mobs:set_animation(entity, stand_anim)
+		entity:set_animation(stand_anim)
 	else
 		-- moving animation
-		mobs:set_animation(entity, moving_anim)
+		entity:set_animation(moving_anim)
 	end
 end

readme.MD

@@ -106,7 +106,7 @@ https://forum.minetest.net/viewtopic.php?f=11&t=9917
 
 ### Version 1.48
 
-* Added `mobs:set_velocity(self, velocity)` global function
+* Added `mobs:set_velocity(self, velocity)` global function [deprecated]
 
 ### Version 1.47