isokit: project layer, Studio GUI, MCP server, viewer, CLI, demo project and docs

examples/demo/lib/kiosk.rhai

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+// A project prefab: shows up as "Gate kiosk" in the Studio palette.
+
+fn meta_kiosk() {
+    #{ label: "Gate kiosk", category: "Site", icon: "⌂",
+       help: "A small kiosk with a boom barrier (project prefab, lib/kiosk.rhai).",
+       props: [
+         #{ key: "h", type: "float", def: 2.8, min: 2.2, max: 4.0, step: 0.1, label: "Height (m)" },
+         #{ key: "boom", type: "bool", def: true, label: "Boom barrier" },
+         #{ key: "boom_len", type: "float", def: 5.0, min: 2.0, max: 8.0, step: 0.5, label: "Boom length (m)" },
+       ] }
+}
+
+fn prefab_kiosk(o) {
+    let p = o.p;
+    let s = sprite();
+    s.box(-1.5, -1.2, 1.5, 1.2, 0.0, 0.2, "plinth");
+    s.box(-1.4, -1.1, 1.4, 1.1, 0.2, p.h, "brick", #{ top: "roof3" });
+    let sd = sides(-1.4, -1.1, 1.4, 1.1);
+    s.open(sd.S[0], sd.S[1], [[0.3, 1.5, 1.1, 2.0]], "glass");
+    s.open(sd.E[0], sd.E[1], [[0.6, 1.4, 0.2, 2.3]], "door2");
+    if p.boom {
+        // the boom is its own sprite so cars and people sort around it
+        let b = sprite();
+        b.box(1.7, -1.5, 1.95, -1.25, 0.0, 1.0, "boom");
+        b.box(1.75, -1.5 - p.boom_len, 1.9, -1.45, 0.9, 1.0, "boom");
+    }
+}