Algodoo

Wow thank you ! but please can you explain all the laser's code? I dont understand nothing (I mean box system spawner code)

Psuedocode:
v = orange ball speed;
newPos = new plot circle position;
oldPosNow = old plot circle position minus how much it has moved since it was created;
boxLength = distance between newPos and oldPosNow;
boxPos = halfway between newPos and oldPosNow;
boxAngle = angle between newPos and oldPosNow;
Scene.addCircle({
...
pos = {
newPos minus how much to move it since it was created
}
});
Scene.addBox({
...
size := [boxLength, 0.02];
pos = {
boxPos minus how much to move it since it was created
}
angle := boxAngle;
});
_oldPos = newPos;
_oldTime = sim.time

Nice!

thanks other time for the explanation!