--[[
		--walk along side walls
		self.turn = false
		if self.direction ~= nil then
			--correct the sideways walk when hits a node
			if minetest.env:get_node({x=self.object:getpos().x+(self.direction.x*1.5),y=self.object:getpos().y,z=self.object:getpos().z}).name ~= "air" then
				turn_x = true
			end
			if minetest.env:get_node({x=self.object:getpos().x,y=self.object:getpos().y,z=self.object:getpos().z+(self.direction.z*1.5)}).name ~= "air" then
				turn_z = true
			end
			if turn_x == true or turn_z == true then
				if self.yaw >= 0 and self.yaw < 45 then
					self.yaw = self.yaw + 0.1
				elseif self.yaw >= 45 and self.yaw < 90 then
					self.yaw = self.yaw + 0.1
				elseif self.yaw >= 90 and self.yaw < 135 then
					self.yaw = self.yaw + 0.1
				elseif self.yaw >= 135 and self.yaw < 180 then
					self.yaw = self.yaw + 0.1
				elseif self.yaw >= 180 and self.yaw < 225 then
					self.yaw = self.yaw + 0.1
				elseif self.yaw >= 225 and self.yaw < 270 then
					self.yaw = self.yaw + 0.1
				elseif self.yaw >= 270 and self.yaw < 315 then
					self.yaw = self.yaw + 0.1
				elseif self.yaw >= 315 and self.yaw <= 360 then
					self.yaw = self.yaw + 0.1
					if self.yaw > 360 then
						self.yaw = 0
					end
				end					
				self.object:setyaw(self.yaw)
				self.direction = {x = math.sin(self.yaw)*-1, y = 0, z = math.cos(self.yaw)}
				self.object:setvelocity({x=self.direction.x,y=self.object:getvelocity().y,z=self.direction.z})
				self.object:setacceleration({x=self.direction.x,y=-10,z=self.direction.z})
				self.jump_timer = 0
				turn_x = false
				turn_z = false
				self.turn = true
			end
		end
		]]--