putValue$atX$Y conundrum

[Tee Toth-Fejel]

What's the story with Diffuse2dImpl.putValue$atX$Y?

I included two printout statements in the java heatbugs demo, and it shows
that the putValue$atX$Y doesn't seem to be doing it's job.

Here are the two output statements in the method I changed:

public Object addHeat$X$Y (int moreHeat, int x, int y) {
        int heatHere;
        
        heatHere = getValueAtX$Y (x, y);          // read the heat
        if (moreHeat <= maxHeat - heatHere)   // would add be too big?
            heatHere = heatHere + moreHeat;       // no, just add
        else
            heatHere = maxHeat;           // yes, use max
        System.out.println("HeatSpace.addHeat: Put local heat="+heatHere+"
x="+x+
                " this="+this);
        putValue$atX$Y (heatHere, x, y);          // set the heat
        System.out.println("HeatSpace.addHeat: check at x="+x+" y"+y+
                " is heat=" + getValueAtX$Y(x, y));
        return this;
    }

Here is the result:

C:\JHEATB~1.1>java StartHeatbugs | tee
HeatSpace.addHeat: Put local heat=4081 x=1 address@hidden
HeatSpace.addHeat: check at x=1 y1 is heat=0
HeatSpace.addHeat: Put local heat=6595 x=65 address@hidden
HeatSpace.addHeat: check at x=65 y60 is heat=0
HeatSpace.addHeat: Put local heat=8720 x=40 address@hidden
HeatSpace.addHeat: check at x=40 y39 is heat=0
HeatSpace.addHeat: Put local heat=4108 x=7 address@hidden
HeatSpace.addHeat: check at x=7 y30 is heat=0
HeatSpace.addHeat: Put local heat=6036 x=64 address@hidden
HeatSpace.addHeat: check at x=64 y45 is heat=0
HeatSpace.addHeat: Put local heat=6715 x=4 address@hidden
HeatSpace.addHeat: check at x=4 y64 is heat=0
.......
HeatSpace.addHeat: Put local heat=18997 x=41 address@hidden
HeatSpace.addHeat: check at x=41 y41 is heat=14886
HeatSpace.addHeat: Put local heat=16468 x=43 address@hidden
HeatSpace.addHeat: check at x=43 y44 is heat=9965
HeatSpace.addHeat: Put local heat=24970 x=77 address@hidden
HeatSpace.addHeat: check at x=77 y66 is heat=17909
HeatSpace.addHeat: Put local heat=12613 x=68 address@hidden
HeatSpace.addHeat: check at x=68 y69 is heat=5334
HeatSpace.addHeat: Put local heat=22113 x=25 address@hidden
HeatSpace.addHeat: check at x=25 y9 is heat=13748
HeatSpace.addHeat: Put local heat=12361 x=65 address@hidden
HeatSpace.addHeat: check at x=65 y62 is heat=7658
HeatSpace.addHeat: Put local heat=23283 x=22 address@hidden
HeatSpace.addHeat: check at x=22 y76 is heat=15176
HeatSpace.addHeat: Put local heat=18036 x=22 address@hidden
HeatSpace.addHeat: check at x=22 y2 is heat=9419
HeatSpace.addHeat: Put local heat=17099 x=59 address@hidden
HeatSpace.addHeat: check at x=59 y25 is heat=9648
HeatSpace.addHeat: Put local heat=13284 x=3 address@hidden
HeatSpace.addHeat: check at x=3 y49 is heat=6208

What is going on here?
When I run the jheatbugs demo, the values and colors change, so apparently
they are changing *somehow*, but not apparently from putValue$atX$Y. Why
doesn't the value change when I do the put?  The documentation for
Diffuse2dImpl says:

"public Object putValue$atX$Y(int v,
                             int x,
                             int y)
Put the given integer to (x,y) overwriting whatever was there."


Thanks for any help that you can give.


Tihamer "Tee" Toth-Fejel                    Member of Technical Staff
(734) 623-2544   address@hidden      http://www.erim.org/ 
Center for Electronic Commerce, Environmental Research Institute of Michigan


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