Algodoo

WOW! Top quality scene, very nicely done!

Found one glitch. The up and down keys do not move the laser support arm because the motor speed is at zero and the torque is very low. Other than that, this scene is AWESOME!

Thank you Mister Xray. you mean the movement of the neck? its O and P. i was gonna do a rover mission on the surface with manually operated rover but decided to do it fully automated as file size went over 15mb then do a seperate rover mission with controls. i wish photos and images wouldnt use so much file size! i love using photoshop and algodoo together! match made in heaven! Anyway, One little question? i had a lot of difficulty in stoppin any left or right (sideways) movement in the landing sequence lander drifts away from designated 'landing zone' i bet theres a simple line of script i could ave done to the craft to keep it on a straight course??

O and P? There's nothing in your scene or in the scene description which says anything about using O and P! But when I clicked on the upper axle that pivots the laser, it shows that the "up" and "down" keys are the controls for it. That's why I mentioned it.

Suggestion: Never assume that users know what control keys to press. Explain every key in the scene description or in the scene itself.

Concerning the unwanted sideways movement, you can dampen movement in the X, Y, or Rotation axes in any object by setting the "velocityDamping" values to a floating point value between zero and one. A setting of 1.0 will severely restrict movement for that particular axis, and a lower value will only gently restrict movement. You can set those values in a script if you want them to change depending on what the object is doing at a particular time or position.

Hope this helps!

EDIT: Oh, by the way, I use PaintShop Pro for editing my images, and I always reduce the file size of each image before saving them so that the final Algodoo file is not too large. You can reduce the file size down to where the image starts to look grainy, and then bump it up a notch.