My rule does nothing
You wrote a rule, pressed Play, and nothing happened.
Check these first
- Is a red condition first? Red conditions happen once, at a moment. A red one after a normal one never fires. In the Events tab, drag the red chip to the front of the row, or delete and re-add it first.
- Is it on the right level? The Events tab shows "Events for {level}". Rules belong to one level unless they are in a group with Works in every level ticked. Press โ2, pick the level in the sidebar, then โ3.
- Is it turned off? Right-click the row number. If the menu says Turn this event back on, click it.
- Is it the right object? The condition names a copy of a sprite by its object name. If you have Hero and Hero 2, check which one the chip says.
- Does the cell have an action? A cell with โ has one. An empty cell means the rule is true but does nothing. Click the cell and add an action.
- Are two conditions fighting? Collides with and Is overlapping on the same objects rarely agree. Try the rule with one condition, then add the other back.
- Is the search hiding it? A filter bar saying "Showing N of M eventsโฆ" means some rows are hidden, not gone. Click Clear.
Why it happens
NutHouse checks every rule 60 times a second, top to bottom. A red condition is only true for one of those checks. If something before it in the row is false at that exact moment, the whole rule is skipped. That is why red goes first, and why "Hero collides with Coin" works but "Score is more than 10, then collides" may not.
