gravity without physics

hello everyone.

i am making a game which requires a lot of objects using the physics behaviour only for the gravity and the set to immovable function. does anybody have any idea how to replicate this effect without eating away RAM. (i also need a way to turn the gravity off). to make it harder for you guys (sorry) i need a way to make it able to work in harmony with many objects, about 14 types.

thank you in advance

Platform Behavior

You can move the object's Y to object.y - 1 at every tick and check if there is a object there first?

thanks Rory and TDark

You should create an variable called VectorY. Every tick, if it's not overlapping another object, set Y to self.Y + self.VectorY. Every tick, also add some amount*dt to vectorY.

sorry — i am lost at the VectorY princniple you introduced to me.

<img src="smileys/smiley34.gif" border="0" align="middle" /> <img src="smileys/smiley34.gif" border="0" align="middle" /> <img src="smileys/smiley34.gif" border="0" align="middle" /> <img src="smileys/smiley34.gif" border="0" align="middle" /> these are dropping in my brain

i also need help on making these objects stack on top of each other