Conditions/Progress.md

+Evaluate the output of an asset layer's listener.
+
+### Attributes
+---
+| **Attribute** | Aliases     | **Description**                                                     |
+| ------------- | ----------- | ------------------------------------------------------------------- |
+| `layer`       | `lay`, `l`  | The asset layer with the listener to evaluate.                      |
+| `value`       | `val`, `v`  | The value to compare the layer progress against - can be a percent. |
+| `operation`   | `oper`, `o` | [Logical Operator](Conditions/Logical-Operator) to compare with.                               |
+
+### Example
+---
+Hides the Asset in its HUD layout if the `air` listener used in the `fill` asset layer is ever less than 100% (so air is in use):
+```yaml
+vanilla-air:
+  conditions:  #Hide if the fill layer is empty.
+    - progress{l=fill;o=<;v=100%} true hide
+  layers:
+    icon:
+      texture:
+        path: assets/vanilla/air.png
+      offset:
+        x: -5
+        y: 2
+    fill:
+      texture:
+        path: assets/vanilla/exp_bar_short_fill.png
+      color: "#525aff"
+      offset:
+        x: 0
+        y: 0
+      function:
+        listener: air
+        increment: 13
+        orientation: horizontal
+```
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