Gravity manipulation

Physics
#1

Hi guys, this is my question regarding physics

im trying to make my hero in a vertical scroller game to try to stay inside the screen.

So i created 2 listeners, one that checks if hero is hero.y < 200 pixels ( top red part) and hero.y >500 (top bottom part) and when they are inside i apply some gravity scale to make them go back up/down, the idea is for the hero to float with some vertical movement but without exiting the screen. After i tried doing this the hero will suddenly get out of control with the gravityscale.

Any idea how i can achieve this? Sorry still learning.

corona_question.png

#2

Why not add invisible rectangles at the top and bottom that represent the ground and the sky limit.  They can be marked .isVisible = true so they won’t show up, but still have a static physics body to keep your hero contained.

Rob

#3

I got a problem with gravity manipulation. I need to make a bird fly upward after a touch event. after the touch event the bird must glide. is there any syntax or eventlistener for when the screen is not touched?

#4

when idle, just add some angular velocity to physics body and set gravity (0.5,-0.5)…if you get the idea

#5

Why not add invisible rectangles at the top and bottom that represent the ground and the sky limit.  They can be marked .isVisible = true so they won’t show up, but still have a static physics body to keep your hero contained.

Rob

#6

I got a problem with gravity manipulation. I need to make a bird fly upward after a touch event. after the touch event the bird must glide. is there any syntax or eventlistener for when the screen is not touched?

#7

when idle, just add some angular velocity to physics body and set gravity (0.5,-0.5)…if you get the idea