Camera component programmed perfectly, still doesn't follow the player

Questions
#1

I seem to have stumbled across a really strange error. I have copied the example camera module from the examples page to track the player, and have followed the instructions perfectly, and checked for typos, but I cant seem to get it to follow the player.

function init(self)
	msg.post("#camera", "acquire_camera_focus")
end

function on_message(self, message_id, message, sender)
	if message_id == hash("follow") then
		go.set_parent(".", sender)
		go.set_position(vmath.vector3(-360, -360, 0))
	elseif message_id == hash("unfollow") then
		go.set_parent("camera", nil, true)
	end
end

function init(self)
	msg.post(".", "acquire_input_focus")
	msg.post("camera", "follow")
	self.follow = true
	
	self.moving = false
	self.firing = false
	self.input = vmath.vector3()
	self.dir = vmath.vector3(0, 1, 0)
	self.speed = 150
	self.damage = 1
end

function final(self)
	msg.post(".", "release_input_focus")
end

function update(self, dt)
	if self.follow == true then
		msg.post("camera", "follow")
	end

image

this is a really weird error, tbh it could be some logic program elsewhere in my code, but to save debugging time I wanted to post it here in case I missed something.

#2

This tells me that you have a camera component with id “camera” on the game object this script belongs to.

But here you post a message to a game object with id “camera”, not specifically to the camera component above.

Does the game object with the camera have id “camera”?

#3

image

yes

#4

image

double checked, definitely right

#5

Are you sure the message is sent?

Add a print before sending the message:

print("sending follow message")` 
msg.post("camera", "follow")

Also add a print in on_message() of the camera script:

function on_message(self, message_id, message, sender)
    print("Received message", message_id)
	if message_id == hash("follow") then

Do you see the message?

I think you could solve this much faster yourself by adding prints such as I suggested or by adding a breakpoint or two in your code and use the integrated debugger in the editor:

:slight_smile:

#6

thanks, i’ll try the debugging later on, tbh i kind of forgot about debug scripts somehow