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Ball movement questions

Solid_Cos

Hi!

I'm trying to make an Arkanoid game to learn how the creation tools work and I'm struggling with couple of things. Maybe somebody can help me.

I have a sphere and 4 walls, in the x/y axis. In the beginning of the scene I apply a mover for 1 second with some x and y forces. (After that I have a mover always making the z axis 0, to avoid the ball jumping on/off the screen). So my questions:


1_ When the sphere bounces in the walls it always loses speed. I have the bounciness in the ball at 100% and friction in ball and walls to 0%, but it loses a small percentage of speed every time. What I'm missing?

2_ I would like to modify the speed of the ball keeping the direction. (Make the ball a little faster from time to time). I tried with a timer that sends a signal every 2 seconds to a mover that takes the values of a movement sensor and multiplies it for 1.2, but I think (even with strength at 100%) the short time that the mover it's active makes it useless (and sometimes the ball behaves strangely). Is there a better way to modify current speed keeping direction?

Thank you very much.

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