Hi,

Playing around with Corona and i'm asking myself: how to create an object (like a balloon) which can defie gravity and go 'up'.

Have tried several thinks but the balloon always falls. Maybe i'm missing something.

Glad if someone can help me :)

Thanks !

You need to constantly apply small upward linear impulses to the balloon:

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local function defyGravity()
   balloon:applyLinearImpulse( 0, -10, balloon.x, balloon.y )
end
 
Runtime:addEventListener( "enterFrame", defyGravity)

A better way would be to set linear velocity

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local function defyGravity()    balloon:setLinearVelocity(0,-10) end

are you using physics ?
in that case you can just use a -ve value for gravity.
physics:setGravity(0,-5) ofcourse only if there are no other object which should fall down. :)

views:1721 update：2011/10/18 15:01:22