Addon power drawing problem

Wouto1997 · Jan 27th 2013

Hey people,

I've worked on an addon for IC2, and I've put it on my server, and it appeared to be working correctly, though now there's a problem when someone places my block, it will draw power from attached cables / generators, though,
when my friend had a generator below it, which was fully filled with EU, and my block had consumed some EU, it wouldn't suck up more energy.

I can't figure out what I'm doing wrong by looking at my code so if anyone can, you're my hero

Here's the code ( implements IEnergySink from the API http://pastebin.com/nNZhrvdW

edit: fixed link

narc · Jan 27th 2013

I think you mis-linked there. I'll take a look at it if you fix the link, though.

Wouto1997 · Jan 27th 2013

Fixed link, also I just noticed in the injectEnergy method, I've got it checking if the side isn't up, then add... I just changed this to:

if (directionFrom.equals(Direction.YM))

since I only want power from bottom

narc · Jan 27th 2013

Hmm. I note an odd possible bug: if injectEnergy is called with an amount < 4 while you have less than 10,000 EU stored, you return a negative number. I have no idea what the EnergyNet does when you do that, but it might be what's causing your issue here. Here, check my mental steps for injectEnergy(Direction.YN, 3):

Code

if (directionFrom.equals(Direction.YN)) { // true
            if (Energy >= 10000) { // false
                this.Energy = 10000;
                return amount;
            } else { // we take this path:
                int left = amount - 4; // left = 3 - 4 = -1
                Energy += (amount > 4) ? 4 : amount; // Energy += 3
                if (Energy > 10000) { // false
                    left += Energy - 10000;
                    Energy = 10000;
                }
                return left; // return -1
            }
        }
        return amount;

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Again, I'm not sure if this is the problem, but otherwise it seems to do what you seem to want it to (which is to accept only 4 EU at a time, no matter how much was actually sent to you, until you have a buffer of 10,000 EU exactly).

Swapping the return for

Code

return ((left < 0) ? 0 : left)

should do the job.

Wouto1997 · Jan 27th 2013

Thanks, this fixed a bug which kept drawing power from the power source, though I still had to update the cable from the bottom to get it to draw power again.

Addon power drawing problem

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