Bouncing ball in a breakout game.

skush97

Hi, I'm brand new to GameSalad, and I have made a simple breakout game, but I have one problem, the ball is too slow, and it never speeds up. I'm wondering if there is a way to accelerate the ball in the direction that it is already moving in, or if I can make it go faster right off the start. I used a gravity of 5 to drop the ball at the start, but if I increase gravity, the game doesn't work correctly, is there a better way to start it?

skush97

I think I found what I want to do: http://forums.gamesalad.com/discussion/28986/attribute-to-change-actor-velocity but when I tried it, the direction still changed.

Cluv

I did something similar, but I used bounciness of the objects to speed up the ball. Bounciness is a physics attribute in the object. I have the bounciness set to something like .5 and you will see the object go faster each time it hits an object - just a thought.

skush97

that sounds perfect, however, I already have it set to 2, shouldn't it be getting really fast? or am I totally misunderstanding the bounciness attribute?

Cluv

I think it depends on the density of the object bouncing off of it as well. Try changing the density of both objects and see if it makes the difference you want.

skush97

I played around with the density, that didn't work either, but I have an idea. Velocity is a vector, meaning it has a magnitude (speed) and a direction, all I want to do is change the magnitude (speed), I noticed that gamesalad has a magnitude(x,y) function, is could this be what I'm looking for?

skush97

This works

I have a self attribute "current aov", which I constrained to
VectorToAngle(self.Motion.Linear Velocity.X,self.Motion.Linear Velocity.Y)

Then, when the speedup bonus applies, I change the max speed to 500 and added the rule

Change Velocity
Direction: self.current aov
speed: 500