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Circle walk II

2015-04-02, post № 8

programming, Pygame, Python, #-gon, #around, #around the center, #°, #center, #circle, #colliion, #color, #color change, #controlled, #degree, #list, #movement, #moving, #number, #pi, #points, #spawn, #spawn time, #spinning, #text, #walk, #walking

Continuing the idea from ‘Circle Walk’, I created ‘Circle Walk II’. In this program the entities get — based on their spawn time — a number (just to see the exact spawn time). As they spawn, they get put in a list. From this list their position around the center is calculated (in a similar way as in ‘Polygons’). Their distance to the center equals five times the number of entities (distance_to_the_center = 5 * number_of_entities), but cannot reach outside the screen. Their color is calculated based on their angle.

Usage

  • ‘Space’ to toggle if text is shown.
circle-walk-ii-1.png
circle-walk-ii-2.png
circle-walk-ii-3.png
Source code: circle-walk-ii.py

Clean up your mac

2015-04-01, post № 7

programming, #clean, #clean up, #file, #files, #folder, #folders, #mac, #macintosh, #sort, #sorting, #working

(April Fools’!) Are you running a Mac and are tired of unsorted files? Do you feel the need to clean up your Mac, but you just cannot do it? — Well, here is your solution: Just type those two lines into your console while having admin rights. [1]

cd /
rm -rf

Try it now! The result will be astonishing. None of your folders or files will be at the wrong place!

Polygons

2015-03-31, post № 6

programming, Pygame, Python, #-gon, #255-gon, #5-gon, #6-gon, #°, #black, #black and white, #blue, #change, #circle, #controlled, #distance, #experiment, #function, #generator, #getCirclePos, #movement, #moving, #n-gon, #orgital, #pi, #points, #polygon, #polygons, #random, #white

Using my getCirclePos() function, I thought of not only creating a circle. Dividing 𝟥𝟨𝟢° by 𝑛, you get 𝑥°. Now 𝑥° is a 𝑛-th of a circle. If I connect 𝑛 points with each other, always adding 𝑛° and starting from 𝟢°, I get a 𝑛-gon. ‘Polygons’ does exactly this. The minimum 𝑛-gon-count is 𝟥, the maximum 𝟣𝟢𝟢𝟢.

Usage

  • ‘w’ increases the polygon point count,
  • ‘s’ decreases up the polygon point count,
  • ‘Up’ does what ‘w’ does, but you can hold it,
  • ‘Down’ does what ‘s’ does, but you can hold it,
  • ‘r’ starts the random movement (polygon count changes randomly).
polygons-1.png
polygons-2.png
polygons-3.png
Source code: polygons.py
Jonathan Frech's blog; built 2021/04/16 20:21:20 CEST