War battles explosion problem (SOLVED)

Questions
1

hi there,

I’m working through the war battles tutorial and I’ve got a problem with the explosions. i haven’t added in the tanks yet so the rockets are just working on the timer. when the timer gets to 0 the rocket object stops moving and rotates to 0 as it should, but the sprite doesnt change to the explosion. I get this error message -

ERROR:GAMEOBJECT: Component ‘/instance0#sprite’ could not be found when dispatching message ‘play_animation’ sent from main:/instance0#rocket1

any idea what I’ve done wrong?

2

this is the code on the rocket script by the way -

function update(self, dt)
    local pos = go.get_position()
    pos = pos + self.dir * self.speed * dt
    go.set_position(pos)
    
    self.life = self.life - dt 
    if self.life < 0 then 
        self.life = 1000 
        go.set_rotation(vmath.quat()) 
        self.speed = 0 
        msg.post("#sprite", "play_animation", { id = hash("explosion") }) 
    end
end

function on_message(self, message_id, message, sender) 
    if message_id == hash("animation_done") then 
        go.delete() 
    end 
end
3

Are you sure the sprite component on the rocket game object has the id “sprite”?

4

as the britzl pointed, the first time i did this i named the sprite rocket_sprite so it did the exact same behavior you described :smiley:
edit: if not mistaken you named it rocket1

5

thanks so much! nailed it guys :slight_smile:

6

Thanks, same happened with me)