Hi !
Featured games (90)
games approved by the League of Dukes
Games in Showcase (780)
Games in Android Showcase (233)
games submitted by our members
Games in WIP (856)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  Detecting specific mouse movements  (Read 1529 times)
0 Members and 1 Guest are viewing this topic.
Offline Death33284

Junior Devvie

« Posted 2006-10-10 21:37:26 »

What would be the best way to detect specific mouse movements using the MouseMotionListener? For example, detecting if the user moved their mouse in a circle.
Offline dranonymous

Junior Devvie

Hoping to become a Java Titan someday!

« Reply #1 - Posted 2006-10-10 21:53:13 »

Interesting question...

You could try fitting the user's mouse points to a pattern.  You'd do something like this for a circle

- Collect X number of mouse points (could be based on time or just the last x mouse movements, either way you have a collection of them)
- Find the points with the smallest x and y
- Find the points with the largest x and y
- Take the four points and use the largest and smallest values to construct two new points, which define a bounding box that encompasses all points
- Calc the center of the box
- Create a circle shape, centered in the bounding box with a radius of half the length of the bounding box (you now have a large circle inscribed in a box)
- Create a smaller circle, centered, that extends to say 1/4 the length of the box.
- Now count the number of points that exist between the two circles

You'd have to decide an appropriate number and a tolerance on the relative circle size.  This assumes you're trying to detect not only a circle, but roughly a certain size of circle as well.

Pictures might make more sense in describing this back of the napkin type idea.

Dr. A>
Pages: [1]
  ignore  |  Print  

hadezbladez (728 views)
2018-11-16 13:46:03

hadezbladez (363 views)
2018-11-16 13:41:33

hadezbladez (715 views)
2018-11-16 13:35:35

hadezbladez (179 views)
2018-11-16 13:32:03

EgonOlsen (2375 views)
2018-06-10 19:43:48

EgonOlsen (2528 views)
2018-06-10 19:43:44

EgonOlsen (1466 views)
2018-06-10 19:43:20

DesertCoockie (2132 views)
2018-05-13 18:23:11

nelsongames (1928 views)
2018-04-24 18:15:36

nelsongames (2601 views)
2018-04-24 18:14:32
Deployment and Packaging
by mudlee
2018-08-22 18:09:50

Java Gaming Resources
by gouessej
2018-08-22 08:19:41

Deployment and Packaging
by gouessej
2018-08-22 08:04:08

Deployment and Packaging
by gouessej
2018-08-22 08:03:45

Deployment and Packaging
by philfrei
2018-08-20 02:33:38

Deployment and Packaging
by philfrei
2018-08-20 02:29:55

Deployment and Packaging
by philfrei
2018-08-19 23:56:20

Deployment and Packaging
by philfrei
2018-08-19 23:54:46 is not responsible for the content posted by its members, including references to external websites, and other references that may or may not have a relation with our primarily gaming and game production oriented community. inquiries and complaints can be sent via email to the info‑account of the company managing the website of java‑
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!