defold, lua, character, movement

player.lua

local MOVE_SPEED = 100

function init(self)
	-- Add initialization code here
	-- Learn more: https://defold.com/manuals/script/
	-- Remove this function if not needed
	msg.post("@render:", "use_camera_projection")
	
	msg.post(".", "acquire_input_focus")
	self.velocity = vmath.vector3()
end


function update(self, dt)
	-- Add update code here
	-- Learn more: https://defold.com/manuals/script/
	-- Remove this function if not needed
end

function fixed_update(self, dt)
	local pos = go.get_position()
	pos = pos + self.velocity * MOVE_SPEED * dt
	go.set_position(pos)

	self.velocity = vmath.vector3()
end

function on_message(self, message_id, message, sender)
-- Add message-handling code here
	-- Learn more: https://defold.com/manuals/message-passing/
	-- Remove this function if not needed
end

function on_input(self, action_id, action)
	if action_id == hash("move_up") then
		print("move up")
		self.velocity.y = 1
	elseif action_id == hash("move_down") then
		self.velocity.y = -1
	end

	if action_id == hash("move_left") then
		self.velocity.x = -1
	elseif action_id == hash("move_right") then
		self.velocity.x = 1
	end
end