Int Unary Condition JK🐉

CM_IntUnaryCondition turns a single integer into a BOOLEAN verdict. One op dropdown, one INT input (a), six questions to ask it: IsZero, IsNonZero, IsPositive, IsNegative, IsEven, IsOdd. The output is the boolean that feeds the rest of your graph.

What it's for

Condition nodes are the connective tissue between math and control flow in ComfyUI. You compute a number, ask it a question, and the answer drives a switch, a gate, or a toggle. Concrete patterns:

• IsEven / IsOdd on a seed or frame counter → alternate between two paths every other frame. This is the poor-man's scheduler and it's shockingly common in animation loops.
• IsPositive on a delta → "did the value increase?" before you branch.
• IsZero on a count → "did that detector find nothing?" before you skip a detail pass.
• IsNonZero → the same intent as converting to bool, but explicit and readable.

Because these return proper BOOLEANs, they chain straight into the pack's Bool And/OR gates or into any node with a boolean input - no conversion step.

Installing it

Ships with ComfyUI-JakeUpgrade:

cd ComfyUI/custom_nodes
git clone https://github.com/jakechai/ComfyUI-JakeUpgrade
cd ComfyUI-JakeUpgrade
# Windows standalone: install.bat
# or: python_embeded\python.exe -s -m pip install -r requirements.txt
pip install -r requirements.txt   # non-Windows

Or ComfyUI Manager, search "JakeUpgrade", install, restart.

Gotchas

• IsEven/IsOdd only make sense for whole numbers - which is fine, this node only takes ints anyway. If your upstream is a float, convert first or use the float condition twin.
• IsPositive excludes zero. Zero is neither positive nor negative; ask IsZero separately if the zero case matters to your branch.
• Manager's JakeUpgrade / IPAdapter_plus conflict warning is a false positive from the pack's replacement/ folder.
• ComfyUI-MultiGPU causes CUDA errors with recent ComfyUI; the README says disable it.