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Max-Felix
Max-Felix presents ...

2014/12/12

Starfield

Guys, is it normal, that with a random direction there are so many stars moveing in a 90° angle? watch it to see what i mean and tell me, whats the problem please...

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Tags: simulation demo with-source why

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danpostdanpost

2014/12/13

Actually, there are two reason for so many along the cardinal directions. Take a look at my Radial Graphs scenario and check out what happens with different distances (speeds) using both 'move(int)' and 'setLocation(int, int)'. It is: http://www.greenfoot.org/scenarios/6928
danpostdanpost

2014/12/13

I think your scenario is similar to settings of 'Radial', 'Up to', '3 pixels' as far as the lines of dots created.
danpostdanpost

2014/12/13

I mean 'Linear', 'Up to', '3 pixels'. However, 'Radial', '3 pixels' produces almost the exact same results.
danpostdanpost

2014/12/13

Man got that one wrong also. Not 'Radial', but 'Angular'.
Max-FelixMax-Felix

2014/12/13

Ok thanks
danpostdanpost

2014/12/13

Couple things of note. The first one is that you are creating more and more stars without ever removing any from the world. You may notice that the speed of the scenario slows down the longer you run it. Eventually you will throw an exception if run long enough. The other thing is that if you watch the behavior, you will notice that the once along the 90 degrees lines are the slowest ones; the ones at 45 degrees are a bit faster; and the others are even faster. This coorelation is due to the speeds that they are going. Also, the slower ones will, by design, be closer to each other than the faster ones; so, the 'line' they form is more prominent for that reason also.
danpostdanpost

2014/12/16

I created something similar using my QActor superclass for quality moving and rotating. It allows for fractional speeds and rotations. I also had the stars speed up as they moved away from the center, giving the viewer the illusion of moving forward through space. It would be a good demo for my QActor class.
zyiroyzzyiroyz

2014/12/20

I am a beginner in the game programming in Greenfoot, and I expect criticism and constructive suggestions for the development of my project. thank you in advance. (^_^) http://www.greenfoot.org/scenarios/12898
Nosson1459Nosson1459

2016/12/19

if u look carefully there r lines forming in all directions

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