Recurring factory animation (SOLVED)

Questions
1

I am trying to animate a factory on a platformer. So far i have done the following:

  • I have created a folder named “enemies”. I have added three files inside:
    1)Atlas
    2)Game object
    3) Script for the game object

  • Inside the atlas, i have created an animation group and added my animation.

    2.PNG165×121 3.52 KB

  • Inside the game object, i have added a reference to the script and added a sprite that refers to the animation i created previously in the atlas.

  • In the script, i have added the following simple logic in the enemies script, inside the update function:

      self.targetPosition = go.get_position("player")
  local enemyPosition = go.get_position()
  
  if enemyPosition.x < self.targetPosition.x then 
  	self.velocity.x =  50	
  	sprite.set_hflip(go.get_id(), true)
  	msg.post(go.get_id(), "play_animation", {id = hash("level1enemy1")})
  else
  	self.velocity.x =  - 50	
  	sprite.set_hflip(go.get_id(), false)
  	msg.post(go.get_id(), "play_animation", {id = hash("level1enemy1")})
  end
  
  go.set_position(go.get_position() + self.velocity * dt)

The result is as follow:

Then i have tried to animate it. I added the following line to the enemies script, in the init function, but no animation happens, and it the object keeps going in one direction, disappears and then reappear again. Here is how i animated it:

go.animate(go.get_id(), "position.x", go.PLAYBACK_LOOP_FORWARD, 20, go.EASING_LINEAR, 1.5)

What i want to achieve is this:

If you can see, each time the object animates, there is jump. The jump is there in the animation. What i want is to animate it in the same behavior such that it does’t move, it only jumps when the animation triggers.

2

It looks like you do the following:

  • In init(), you start animating the position. This happens once when the game object is initiated, but the position is updated each frame by the engine.
  • In update(), you also manually set the position. This happens each frame.

I don’t understand what the animation of “position.x” to position 20 is supposed to achieve but the problem seems to be that you have two competing position updates going.

3

Your comment was right on spot. It took me a while to fix it. I was able to produce an enemy with the same exact behavior. Thanks

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