efficiency = new BigDecimal(0);
creationMillis = 0;
energy = new BigDecimal(0);
freeEnergy = new BigDecimal(0);
isTooWeak = false;
treeLeaf3D = new MockTreeLeaf3D();
state = new TreeLeafState();
synchronizedCalled = 0;
collectSolarEnergyCalled = 0;
ageCalled = 0;
improveEfficiencyCalled = 0;