Planet Gravity

dmilinovichiii

Does anyone know how to measure the distance between two objects so I could create a planet and have something pulled towards the planet faster the closer it gets?

Hachiko

Using magnitude. There's a really nice template made by firemaplegames, if I remember well, that's pretty easy to understand and should just be what you're searching for.

dmilinovichiii

Ok. I'll try it. Thanks.

BarkBarkCo

This demo doesn't accelerate faster based on proximity, but it could be modified to do so. It does demonstrate how to trigger movement when an object gets closer.

http://gamesalad.com/game/play/67052

dmilinovichiii

barkbark00 said:
This demo doesn't accelerate faster based on proximity, but it could be modified to do so. It does demonstrate how to trigger movement when an object gets closer.

http://gamesalad.com/game/play/67052

Great! I'll see if I can modify it like you suggested.

quantumsheep

Another way of doing it is to constrain a large invisible actor over your planet.

Then when an object collides with the invisible actor, it makes the actort move towards the invisible actor's centre (and thus, the planet).

I use it for black holes

QS

dmilinovichiii

Hachiko said:
Using magnitude. There's a really nice template made by firemaplegames, if I remember well, that's pretty easy to understand and should just be what you're searching for.

So does anyone know how I would find the magnitude? I'm in high school math so can you explain it in detail?

BarkBarkCo

Look at the rule in my star actor.

`magnitude( self.Position.X - game.VicX , self.Position.Y - game.VicY )`

The above expression gives you the distance between the star's position and that of the planet which is constrained to "VicX" and "VicY"