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check if the actor's physical attribute is set to "movable"

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If you want to limit the amount of spawns (let's say to 200) . . . make a game.attribute, let's call it 'S'.

if i wanted to spawn after random number of seconds , and repeat the same timer over and over, I will have to put it in a condition with a game attribute ? Is this the way to approach it ?

@Socks Yes I already mentioned no need to constrain if the hero wont move , but the random every timer , i didnt think of it this way before , your right it makes sense now

A couple of quick notes, you don't need to constrain the hero's X position as there is nothing changing the hero's x position - also you cannot have a random value for an 'every' timer, 'every' means

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If your Hero actor wont move right and left, you can avoid constraining its position to a game attribute , you can do it this way

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change attribute self.color.alpha to 0

constrain ball x to mouse x + camera origin x

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     Change Attribute game.score to game.score + 100

When it interpolates from right to left put a change attribute self.flip horizontally to false.

Im trying to detect which direction an actor is being interpolated in order to add an animation based on it's direction, obviously the "Interpolate" attribute overrides physics so i

Here is one way to do it , by spawning seperate actors left/right and using custom collisions to detect collision , and giving them speed, I attached a demo hope it helps.

I'll set a save attribute for every "app start" in a first update and then later use that to see who's a pro user and who's supposed to buy the upgrade. But I guess there is going to

My spawner spawns bird actor. I have set up game.lives attribute to keep track of hero ''lives''.

Yes, it assumes a default starting angle of 0°, any other angle (or changing angles) and then I'd use your approach of a starting angle attribute.