AnfyFire - Copyright (C) by Fabio Ciucci 1996/98


This applet can generate and animate a realtime "fire" effect, well know
in the "demo scene" contest.This applet is fully parametrized, so you can
generate all kinds of fire effects.

The following 3 ".class" files must be uploaded: fire.class, Lware.class and
anfy.class.

Insert the <applet> tag in your html document as follows to add this applet
to your page (Comments after the ";" symbol are code explanations and
acceptable min/max values. They are not part of the applet language):
 
<applet code="fire.class" width=140 height=256>  ; Name, Width, Height
<param name=credits value="Applet by Fabio Ciucci (www.anfyjava.com)">
<param name=regcode value="NO">         ; Registration code (if you have it)
<param name=reglink value="NO">         ; Optional URL link when 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="Fire applet">   ; Statusbar message
<param name=fwidth value="70">               ; width (1-1024)
<param name=fheigth value="64">              ; height (1-1024)
<param name=resx value="2">                  ; horizontal resolution (1-8)
<param name=resy value="4">                  ; vertical resolution (1-8)
<param name=fcut value="7">                  ; fire cut start (1-127)
<param name=fsub value="4">                  ; fire cut value (1-127)
<param name=deflight value="30">          ; minimal lightning at base (0-127)
<param name=fmode value="2">              ; fire mode (1=rectangle 2=convex)
<param name=rndrep value="4">             ; random gen. repeating (1-9)
<param name=paletteR value="5">           ; red value (0-8)
<param name=paletteG value="3">           ; green value (0-8)
<param name=paletteB value="1">           ; blue value (0-8)
<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 deallocation 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


                             ---------


The following instructions detail 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 "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 displayed as 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 parameters "fwidth" and "fheight" determine the "internal" width and
heigth of the fire, but will be "real" size only if resx=1 and resy=1.
In fact, resx and resy are sort of "scalers", "zoomers", or "stretchers",
so to speak: if fwidth and fheigth are set to 8 and 10, and resx=2 & resy=2,
you will have a "real" size of 16 x 20. The real size is fwidth*resx X
pheight*resy.

This effect is better when resy is greater than resx.

Regarding the fire cutting values fcut and fsub: fcut must be higher
than fsub, and some values will generate wrong effects.
Optimum range is 1-127.

The deflight (0-127) determines the minimal light at the base of fire... so
with a value of 0 the fire will have more black holes than placing it as 127.

If you like the fire as a rectangular block, set fmode=1. If you like the
fire as a convex (conical) flame, set it to 2.

You can determine the smoothing of random generator with rndrep (1-9)... with
lower values you will have less smoothed flames, and vice-versa.

In the palette there are 3 values for Red Green Blue (RGB). Settings can
go from 0 (none) to 8 (full), and are named paletteR, paletteG, paletteB.
You can generate red (fire), green (magic), blue (gas) flames... there
are 700 combinations possible, just select your preference.