galaxy


            Galaxy - Copyright (C) by F. Ciucci & A. Fasce 1998/99





This applet generates various kinds of realtime "galaxy" effects.



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NECESSARY FILES.



Apart from an optional overlay image, the following 3 ".class" files

 must be uploaded: 



galaxy.class

Lware.class

anfy.class



Plus, galaxy.jar for speedy loading on recent browsers.



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EXAMPLE.



Insert the <applet> tag in your html document as follows to add this applet

to your page (Comments after the ";" symbol are code descriptions and

acceptable min/max values. They are not part of the applet language):





<applet archive="galaxy.jar" code="galaxy.class" width="240" height="150">

<param name="credits" value="Applet by Andrea Fasce (www.anfyjava.com)">

<param name="regcode" value="NO">         ; Registration code (if you have it)

<param name="reglink" value="NO">         ; Optional URL link when the applet

                                          is "clicked".

<param name="regnewframe" value="YES">      ; Reglink opened in new frame?

<param name="regframename" value="_blank">  ; Name of new frame for reglink

<param name="statusmsg" value="Galaxy applet">  ; Statusbar message

<param name="particles" value="5">           ; Particles mode (0..7)

<param name="random" value="0">              ; Random effect ("0"=no, "1"=yes)

<param name="script" value="1">              ; Script number (0 .. 11)

<param name="gpalette" value="0">            ; Palette (0 .. 5)

<param name="persist" value="6">             ; Persistence (0 .. 128)

<param name="dinamic_persist" value="0.0">   ; Dynamic pers. (0.0 .. 126.0)

<param name="dinamic_min" value="4">         ; Min. persistence (1 .. 127)

<param name="dinamic_max" value="16">        ; Max. persistence (1 .. 127)

<param name="overimg" value="NO">            ; Optional image over applet

<param name="overimgX" value="0">            ; Over image X offset

<param name="overimgY" value="0">            ; Over image Y offset

<param name="memdelay" value="1000">         ; Memory de-allocation delay

<param name="priority" value="3">            ; Task priority (1..10)

<param name="fixnetscape" value="NO">        ; Fix Netscape 3.0 bug ("YES","NO")

<param name="MinSYNC" value="10">            ; Min. milliseconds/frame for sync

Sorry, your browser doesn't support Java.  ; Message for no java browsers.

</applet>                                  ; End of applet tag





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INSTRUCTIONS.





The following instructions describe how to change parameters:



Attempting to change the credits parameter will disable the applet.



To activate the reg parameters read the shareware registration notes.

In the "regcode" parameter, place the registration code you purchased

 from the author. If the code is correct and the applet is run from

the registered domain name, you can use "link" parameters to link to a URL

when the applet is mouse-clicked.



If you set "regnewframe" to "YES", you can specify a specific frame location

for the reglink:



"_blank"  : To load the link in a new blank unnamed browser window.

"_self"   : To load the link into the same window the applet occupies.

"_parent" : To load the link into the immediate FRAMESET parent.

"_top"    : To load the link into the top body of the window.



You can also set a custom frame name, such as "myframe1".



With the "overimg" parameter you can specify the name of an image that will

be painted over the applet. The best options are transparent GIF images.

NOTE: Animated GIF images are supported, but will be animated only on latest

 browsers (Netscape 4 and Explorer 4 or newer).



With "overimgX" and "overimgY" you can center the image over the applet area.



The size of the applet is determined by the "width" and "height" tags.



With "particles" parameter you choose the particle mode from values from 0 

to 7.



With "random" parameter set to "1", a random effect will be displayed. If you

instead set it to "0", the effect selected by the "script" parameter will be

displayed. Here are the abailable "script" parameter values:





 0 - Circular Galaxy

 1 - Sphere -> Ring

 2 - Tubular Galaxy

 3 - Spiral Galaxy

 4 - Rotating System

 5 - Into Sphere

 6 - Supernova

 7 - Sphere -> Tubular

 8 - Wave -> Atom

 9 - Cone -> Wave

 10 - All effects one color

 11 - All effects all colors





With "gpalette" parameter (0 .. 5), you choose the palette of a galaxy:



 0 = white

 1 = blue

 2 = red->black

 3 = red->violet

 4 = green

 5 = red->white



You can enable the light persistence, setting "persist" to a value higher

than 0. The max is 128, but the best results are arond 20.



You can set a persistence variation too, placing a value higher than 0.0 in

the "dinamic_persist" parameter. It accepts float values: 0.5 , 1.3 etc.

This value will be a "speed" of transition between the min and max persistence

set with "dinamic_min" and "dinamic_max" parameters.



Of course, min must be smaller than max!

Back to the galaxy applet page

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