Initial commit

moved from private version control

scripts/nodes/library/input/btn.js

@@ -0,0 +1,55 @@
+import { createNodeModule } from "../../nodeTypes.js";
+
+/**
+ * Reads the state of a PICO-8 button using BTN.
+ */
+export const btnNode = createNodeModule(
+  {
+    id: "input_btn",
+    title: "Button State",
+    category: "Input",
+    description: "Read the current pressed state for a controller button.",
+    searchTags: ["btn", "input", "button", "press"],
+    inputs: [
+      {
+        id: "button",
+        name: "Button",
+        direction: "input",
+        kind: "number",
+        description: "Button index or glyph code",
+      },
+      {
+        id: "player",
+        name: "Player",
+        direction: "input",
+        kind: "number",
+        description: "Optional player index",
+      },
+    ],
+    outputs: [
+      { id: "value", name: "Pressed", direction: "output", kind: "boolean" },
+    ],
+    properties: [],
+  },
+  {
+    evaluateValue: ({ resolveValueInput }) => {
+      const OMIT = "__pg_omit__";
+      const button = resolveValueInput("button", OMIT);
+      const player = resolveValueInput("player", OMIT);
+
+      if (button === OMIT && player === OMIT) {
+        return "btn()";
+      }
+
+      if (button === OMIT) {
+        return `btn(nil, ${player})`;
+      }
+
+      if (player === OMIT) {
+        return `btn(${button})`;
+      }
+
+      return `btn(${button}, ${player})`;
+    },
+  }
+);