Some work to make hotkeys a 'real thing' on the lua side

luprex/lua/login.lua

@@ -18,22 +18,34 @@ function engio.move(action, xyz, facing)
     tangible.animate(actor, nil, {action=action, xyz=xyz, facing=facing})
 end
 
-function cube.getlookat()
-    return { "Hotkeys", "X", "I Am a Cube" }
+function cube.lookhotkeys(keys)
+    keys:add("X", "Cube Hi", function () dprint("Cube Hi") end)
+    keys:add("A", "Cube Bye", function () dprint("Cube Bye") end)
 end
 
-function sphere.getlookat()
-    return { "Hotkeys", "X", "I Am a Sphere" }
+function sphere.lookhotkeys(keys)
+    keys:add("X", "Sphere Hi", function () dprint("Sphere Hi") end)
+    keys:add("A", "Sphere Bye", function () dprint("Sphere Bye") end)
 end
 
+
 function engio.getlookat()
     local class = tangible.getclass(tangible.place())
-    if class ~= nil then
-        local getlookat = class.getlookat
-        if getlookat ~= nil then
-            return getlookat()
-        end
+    if class == nil then return end
+
+    -- if the class has a function 'lookhotkeys', then the correct
+    -- look-at widget is 'hotkeys'.  We're going to automatically 
+    -- generate the correct response.
+    if class.lookhotkeys ~= nil then
+        local keys = hotkeylist.create()
+        class.lookhotkeys(keys)
+        setmetatable(keys, nil)
+        return keys
+    end
+
+    -- otherwise, if the class has a function 'getlookat', use that.
+    if class.getlookat ~= nil then
+        return class.getlookat()
     end
-    return ""
 end